Fully automatic material film splicing apparatus and splicing method

Abstract

A fully automatic material film splicing apparatus and splicing method, comprising: an on-line material film feeding device and at least two material film splicing devices; the on-line material film feeding device being configured to switch between working positions corresponding to the at least two material film splicing devices; each of the material film splicing devices being equipped with a material film roll machine, the material film roll machine continuously delivering a strip-shaped material film into subsequent mechanisms via the material film splicing device and the on-line material film feeding device; when a material film in use (referred to as an on-line material film) is depleted, the on-line material film feeding device transferring an end portion of the on-line material film to the next material film splicing device to splice a starting portion of a new material film with the end portion of the on-line material film.

What is claimed is: 
     
         1 . A fully automatic material film splicing apparatus comprises:
 an on-line material film feeding device and at least two material film splicing devices;   the at least two material film splicing devices are adjacently arranged along a horizontal X-axis beneath the on-line material film feeding device;   the on-line material film feeding device is configured to move reciprocally along the X-axis to perform working position switching corresponding to the at least two material film splicing devices;   each material film splicing device incorporates a material film unwinding machine;   the material film unwinding machine continuously feeds uninterrupted material film to both the corresponding material film splicing device and the on-line material film feeding device; wherein:
 the material film splicing device includes a platform, the platform extending along a Y-axis direction and defining a first end and a second end, the first end opposing the on-line material film feeding device; 
 above the first end of the platform, a material film splicing roller and a guide roller are disposed in parallel along the X-axis; 
 the material film splicing roller and the guide roller are controlled by a linear driving device to move reciprocally along a pair of kidney-shaped slots; 
 the pair of kidney-shaped slots is formed on a left sidewall and a right sidewall of the platform, each kidney-shaped slot including a first limiting end and a second limiting end; 
 the second limiting end is located higher than the first limiting end; 
 when the material film splicing roller and the guide roller are positioned at the second limiting end, the material film splicing roller and the guide roller are separated from the platform; 
 when the material film splicing roller and the guide roller are positioned at the first limiting end, the material film splicing roller presses against the platform; 
   the on-line material film feeding device comprises: a material film pressing unit, a material film cutting unit, and a material film holding unit, arranged in sequence from to back along the Y-axis and installed within a housing;
 the material film pressing unit includes at least one material film pressing element moving upward and downward along a Z-axis; 
 the material film cutting unit includes a material film cutting blade moving reciprocally along both the X-axis and the Z-axis; 
 the material film holding unit includes a material film carrying platform, the material film carrying platform configured to move reciprocally along the Z-axis to connect to or separate from the first end located on the platform. 
   
     
     
         2 . The fully automatic material film splicing apparatus according to  claim 1 , wherein the both ends of the material film splicing roller and the guide roller are connected to a bracketed roller assembly, the bracketed roller assembly being controlled by the linear driving device to move along the kidney-shaped slots. 
     
     
         3 . A fully automatic material film splicing apparatus comprises:
 an on-line material film feeding device and at least two material film splicing devices;   the at least two material film splicing devices are adjacently arranged along a horizontal X-axis beneath the on-line material film feeding device;   the on-line material film feeding device is configured to move reciprocally along the X-axis to perform working position switching corresponding to the at least two material film splicing devices;   each material film splicing device incorporates a material film unwinding machine;   the material film unwinding machine continuously feeds uninterrupted material film to both the corresponding material film splicing device and the on-line material film feeding device; wherein:
 the material film splicing device includes a platform, the platform extending along a Y-axis direction and defining a first end and a second end, the first end opposing the on-line material film feeding device; 
 above the first end of the platform, a material film splicing roller and a guide roller are disposed in parallel along the X-axis; 
 the material film splicing roller and the guide roller are controlled by a linear driving device to move reciprocally along a pair of kidney-shaped slots; 
 the pair of kidney-shaped slots is formed on a left sidewall and a right sidewall of the platform, each kidney-shaped slot including a first limiting end and a second limiting end; 
 the second limiting end is located higher than the first limiting end; 
 when the material film splicing roller and the guide roller are positioned at the second limiting end, the material film splicing roller and the guide roller are separated from the platform; 
 when the material film splicing roller and the guide roller are positioned at the first limiting end, the material film splicing roller presses against the platform. 
   
     
     
         4 . The fully automatic material film splicing apparatus according to  claim 3 , wherein the both ends of the material film splicing roller and the guide roller are connected to a bracketed roller assembly, the bracketed roller assembly being controlled by the linear driving device to move along the kidney-shaped slots. 
     
     
         5 . A fully automatic material film splicing apparatus comprises:
 an on-line material film feeding device and at least two material film splicing devices;   the at least two material film splicing devices are adjacently arranged along a horizontal X-axis beneath the on-line material film feeding device;   the on-line material film feeding device is configured to move reciprocally along the X-axis to perform working position switching corresponding to the at least two material film splicing devices;   each material film splicing device incorporates a material film unwinding machine;   the material film unwinding machine continuously feeds uninterrupted material film to both the corresponding material film splicing device and the on-line material film feeding device; wherein:
 the on-line material film feeding device comprises: 
 a material film pressing unit, a material film cutting unit, and a material film holding unit, arranged in sequence from to back along the Y-axis and installed within a housing; 
 the material film pressing unit includes at least one material film pressing element moving upward and downward along a Z-axis; 
 the material film cutting unit includes a material film cutting blade moving reciprocally along both the X-axis and the Z-axis; 
 the material film holding unit includes a material film carrying platform, the material film carrying platform configured to move reciprocally along the Z-axis to connect to or separate from the first end located on the platform. 
   
     
     
         6 . A splicing method for the fully automatic material film splicing apparatus according to  claim 1 , comprising:
 Step 1: Preparing a new material film on a platform of a material film splicing device, wherein a starting portion of the new material film passes beneath a material film splicing roller and is then laid upward over a guide roller; the material film splicing roller and the guide roller are positioned at an intermediate position of a kidney-shaped slot, such that the starting portion of the new material film is separated from the platform; a bottom surface of the starting portion of the new material film is pre-coated with adhesive;   Step 2: A material film carrying platform of an on-line material film feeding device places an end portion of an on-line material film on the platform, and the end portion is positioned beneath the starting portion of the new material film;   Step 3: The material film splicing roller and the guide roller move from the intermediate position of the kidney-shaped slot to the first limiting end of the kidney-shaped slot; The material film splicing roller presses the starting portion of the new material film onto the end portion of the on-line material film, thereby bonding the starting portion to the end portion with adhesive and completing the splicing of the new material film to the on-line material film.