An automatic cutting and re-bonding mechanism for PVC film of a blister machine

Abstract

The present invention relates to a fully automatic cutting and re-bonding mechanism for PVC film of a blister machine, which includes symmetrically arranged film rolls, a PVC feeding mechanism, a tape sticking mechanism, etc. The film rolls are placed on a mechanism for supporting the PVC film rolls, the PVC feeding mechanism is placed above the film rolls, the tape sticking mechanism is installed above the PVC feeding mechanism, a rotary swing mechanism is placed in the middle of two groups of symmetrically arranged tape sticking mechanisms, PVC feeding mechanisms and tape sticking mechanisms, and a PVC film pulling mechanism is arranged above the rotary swing mechanism for pulling the film to supply PVC. By combining machinery and electrical control, the present invention realizes the fully automatic cutting and re-bonding of the PVC film through the steps of automatically feeding the film, cutting the film, and sticking the tape, eliminates the manual participation in the process of cutting and bonding the PVC film, enables the entire film roll switching process to be fully automatic, and has continuous actions without stopping the machine, improves the film receiving efficiency of the blister machine, and operates more smoothly.

Description

Technical Field

[0001] The present invention relates to a blister machine, in particular to a fully automatic cutting and re-bonding mechanism for PVC film of a blister machine. Background Art

[0002] The most commonly used film material for blister machines is PVC. Since the products packaged by blister machines are mainly small-volume injection products, according to usage experience, the thickness of the film material needs to be 0.3 - 0.5 mm to ensure good stiffness of the blister. The packaging materials provided by film material manufacturers are all in roll form, and the width of the film material used in our equipment is usually 200 - 400 mm.

[0003] When the equipment is running and a roll of film material is used up and needs to be replaced with another roll, the general equipment needs to stop the operation of the equipment, remove the core shaft of the used film material, replace it with a new film material, and then splice the new and old film materials together. Generally, it takes 2 - 3 minutes to replace the film material. A roll of film material can usually be used for 20 - 40 minutes. If the equipment is stopped to replace the film material, the efficiency will be reduced by about 10%. To solve this problem, many manufacturers have developed a double-film roll mechanism, that is, two rolls of film are placed on the equipment at the same time. When replacing the film roll, a certain amount of film roll is manually pulled out for the equipment to run without stopping the equipment. However, this structure has certain drawbacks. First, the operator needs a certain degree of proficiency to quickly replace the film roll. Second, during the process of pulling the film roll, the film roll will be pulled to the ground, resulting in pollution of the packaging material. To solve the low efficiency of replacing the film material during downtime, reduce the operation difficulty of the operator and the risk of polluting the film material, the film splicing operation needs to achieve the following two points:

[0004] (1) It is completely intelligently controlled by a PLC (Programmable Logic Controller), with highly intelligent and automated controllability, and can be synchronously connected to the blister machine for online operation.

[0005] (2) It completely realizes the full-automatic cutting and re-bonding of PVC film, eliminates manual participation in the cutting and bonding process of PVC film, enables the entire film roll switching process to be fully automatic, and the actions are continuous without stopping the machine, improves the film splicing efficiency of the blister machine, and makes the whole line run more smoothly. Summary of the Invention

[0006] The purpose of the present invention is to provide a fully automatic cutting and re-bonding mechanism for PVC film of a blister machine, simplify the film splicing operation process, eliminate manual participation in film splicing, and ensure the normal operation of the blister machine.

[0007] To achieve the above object, the technical solution of the present invention is: a fully automatic cutting and re-bonding mechanism for PVC film of a blister machine, which includes symmetrically arranged film rolls, a PVC feeding mechanism, a tape sticking mechanism, a rotating and swinging mechanism, and a PVC film pulling mechanism. The film rolls are placed on a mechanism for supporting the PVC film rolls, the PVC feeding mechanism is placed above the film rolls, the tape sticking mechanism is installed above the PVC feeding mechanism, the rotating and swinging mechanism is placed in the middle of two symmetrically arranged tape sticking mechanisms, PVC feeding mechanisms and tape sticking mechanisms, and the PVC film pulling mechanism is arranged above the rotating and swinging mechanism for pulling the film to supply PVC.

[0008] Further, the mechanism for supporting the PVC film rolls includes an air shaft that can perform inflation operation and a concave support seat. The film roll is placed on the concave support seat through the air shaft passing through the film roll.

[0009] Further, the PVC feeding mechanism includes a film support roller, a film fixing and clamping mechanism with a fixed cylinder, a film positioning and clamping mechanism with a handle, a film moving and clamping mechanism with a cylinder for moving the film material, a film rotating splicing plate for pressing and fixing the film roll joint, and a rotating cylinder for providing the rotation power of the film rotating splicing plate. The film support roller is installed in front of the film fixing and clamping mechanism; the PVC pulled from the PVC film roll bypasses the film support roller, the positioning and clamping mechanism is lifted, and the PVC passes through the film fixing and clamping mechanism, the film positioning and clamping mechanism, and the film moving and clamping mechanism in sequence until the film is pulled to a position flush with the right side of the film rotating splicing plate. At this time, the positioning and clamping mechanism is lowered, and the cylinder button of the film moving and clamping mechanism is pressed to make the film moving and clamping mechanism clamp the film material.

[0010] Further, the tape sticking mechanism is used for pressing the film material, and includes an electric cylinder for moving the adhesive tape mechanism, a fixing plate for placing the tape and bonding, pressing and cutting the tape, a film pressing and cutting mechanism, a linear guide rail for keeping the adhesive tape mechanism for bonding, pressing and cutting the tape moving in a straight line, a tape pressing mechanism, a tape cutter, a tape positioning and pressing mechanism, and a tape feeding roller plate. With the assistance of the tape feeding roller plate, the film material is cut during the process of sticking the tape on the side. After the tape sticking action is completed, with the assistance of the tape positioning and pressing mechanism, the tape cutter cuts the tape. The power is provided by the electric cylinder of the moving adhesive tape mechanism, and the moving direction of the mechanism is ensured by the linear guide rail for keeping the adhesive tape mechanism for bonding, pressing and cutting the tape moving in a straight line.

[0011] Further, the rotating and swinging mechanism includes a reversing servo motor for providing rotation power, a reversing bearing fixing seat, a film joint steering plate, and a joint pressing mechanism. The film joint steering plate is connected to the reversing servo motor through a shaft passing through the reversing bearing fixing seat. When the reversing servo motor receives an instruction to start moving, the film joint steering plate will swing left and right around the shaft, and the joint pressing mechanism is used for clamping the joint of the PVC film material.

[0012] Furthermore, the PVC film pulling mechanism includes a film pulling pressing cylinder support seat, a film pulling pressing cylinder, a film pulling driving roller, a film pulling driven roller, a film pulling driven roller fixing bracket, and a film pulling power motor. The film pulling pressing cylinder is installed on the film pulling pressing cylinder support seat. When the film pulling cylinder moves, the film pulling driven roller fixing bracket is pulled down, and the film pulling driven roller is brought into contact with and pressed against the film pulling driving roller. When film pulling is required, the film pulling power motor is started to drive the driving roller to rotate.

[0013] The beneficial effects of the present invention are as follows:

[0014] Through reasonable and effective structural design, the present invention is fully intelligently controlled by a PLC (programmable logic controller), featuring highly intelligent and automated controllability. It can be operated synchronously and online with the blister machine, fully realizing the fully automatic cutting and re-bonding of the PVC film, eliminating manual participation in the cutting and bonding process of the PVC film, enabling the entire film roll switching process to be fully automatic, with continuous and non-stop operation, improving the film receiving efficiency of the blister machine, and making the operation more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional view of the fully automatic cutting and re-bonding mechanism of the PVC film of the blister machine of the present invention;

[0016] Figure 2 is Figure 1 a detailed illustration of the left and right PVC film rolls, the left supporting PVC film roll mechanism, and the right supporting film roll mechanism in;

[0017] Figure 3 is Figure 1 a detailed illustration of the components of the left PVC feeding mechanism from another perspective in;

[0018] Figure 4 is Figure 1 a detailed illustration of the components of the left tape sticking mechanism from another perspective in;

[0019] Figure 5 is Figure 1 a detailed illustration of the components of the rotary swing mechanism from another perspective in;

[0020] Figure 6 is Figure 1 a detailed illustration of the components of the PVC film pulling mechanism from another perspective in. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Please refer to Figures 1 to 6, the fully automatic cutting and re-bonding mechanism for the PVC film of the blister machine of the present invention includes a left film roll 1, a left supporting PVC film roll mechanism 2, a left PVC feeding mechanism 4, a left tape pasting mechanism 3, a rotating and swinging mechanism 5, a right tape pasting mechanism 6, a right PVC feeding mechanism 7, a right supporting PVC film roll mechanism 8, a right film roll 9, and a PVC film pulling mechanism.

[0023] The left air shaft passes through the left film roll 1 and is placed on the left concave support seat. The left PVC feeding mechanism 4 is placed above the left film roll 1. The left tape pasting mechanism 3 is installed above the left PVC feeding mechanism 4. The rotating and swinging mechanism 5 is placed in the middle of the left tape pasting mechanism 3, the left PVC feeding mechanism 4, the right tape pasting mechanism, and the right PVC feeding mechanism. The right tape pasting mechanism 6 is placed below the right PVC feeding mechanism 7. The right film roll 9 is placed below the right PVC feeding mechanism 7. Among them, the right air shaft 8-2 passes through the center of the right film roll 9 and is then placed on the right concave support seat 8-1.

[0024] The left supporting PVC film roll mechanism 2 includes a left air shaft 2-1 capable of inflation operation and a left concave support seat 2-2.

[0025] The left PVC feeding mechanism 4 capable of clamping, positioning, and feeding the PVC film includes a film support roller 4-1, a film fixing and clamping mechanism 4-2 with a fixed cylinder. The film support roller 4-1 is installed in front of the film fixing and clamping mechanism 4-2. A film positioning and clamping mechanism 4-3 with a handle, a film moving and clamping mechanism 4-4 with a cylinder for moving the film material, a film rotating splicing plate 4-5 for pressing and fixing the film roll joint, and a rotating cylinder 4-6 for providing the rotation power for the film rotating splicing plate 4-5.

[0026] When pulling out the PVC from the PVC film roll, it needs to bypass the film support roller 4-1, lift the positioning and clamping mechanism 4-3, and pass the PVC through the film fixing and clamping mechanism 4-2, the film positioning and clamping mechanism 4-3, and the film moving and clamping mechanism 4-4 in sequence until the film is pulled into a position flush with the right side of the film rotating splicing plate 4-5. At this time, put down the positioning and clamping mechanism 4-3 and press the cylinder button of the film moving and clamping mechanism 4-4 to make the film moving and clamping mechanism 4-4 clamp the film material.

[0027] The left tape pasting mechanism 3 includes an electric cylinder 3-1 for moving the bonding tape mechanism, a fixed plate 3-2 for placing the tape 3-3 and bonding, pressing, and cutting the tape, a film pressing and cutting mechanism 3-4, a linear guide rail 3-5 for keeping the bonding, pressing, and cutting tape mechanism moving in a straight line, a tape pressing mechanism 3-6, a tape cutter 3-7, a tape positioning and pressing mechanism 3-8, and a tape feeding roller plate 3-9.

[0028] The left tape pasting mechanism 3 mainly presses the film material, and then pastes the tape 3-3 with the assistance of the tape feeding roller plate 3-9. During the process of pasting the tape 3-3, the film material is cut. After the tape pasting action is completed, with the assistance of the tape positioning and pressing mechanism 3-8, the tape cutting knife 3-7 cuts the tape 3-3. This action is powered by the electric cylinder 3-1 of the moving adhesive tape mechanism, and the linear guide rail 3-5 that maintains the linear motion of the adhesive pressing and cutting tape mechanism ensures the moving direction of the mechanism.

[0029] The rotary swing mechanism 5 includes a reversing servo motor 5-1 that provides rotary power, a reversing bearing fixing seat 5-2, a film joint steering plate 5-3, and a joint pressing mechanism 5-4.

[0030] The film joint steering plate 5-3 is connected to the reversing servo motor 5-1 through a shaft passing through the reversing bearing fixing seat 5-2. When the reversing servo motor 5-1 receives an instruction to start moving, the film joint steering plate 5-3 will swing left and right around the shaft. Among them, the joint pressing mechanism 5-4 mainly clamps the PVC film joint.

[0031] The PVC film pulling mechanism includes a film pulling pressing cylinder support seat 10-1, a film pulling pressing cylinder 10-2, a film pulling driving roller 10-3, a film pulling driven roller 10-4, a film pulling driven roller fixing frame 10-5, and a film pulling power motor 10-6.

[0032] Among them, the film pulling pressing cylinder 10-2 is installed on the film pulling pressing cylinder support seat 10-1. When the film pulling cylinder 10-2 acts, it pulls down the film pulling driven roller fixing bracket 10-5, bringing the film pulling driven roller 10-4 into contact and pressing with the film pulling driving roller 10-3. When film pulling is required, the film pulling power motor 10-6 is started to drive the driving roller to rotate.

[0033] Before use, install the left film roll 1 on the left air shaft 2-2, then place the left air shaft 2-2 with the installed film roll on the left concave support seat 2-1, position the left film roll 1, inflate the left air shaft 2-2, pull out the film material from the left film roll 1, bypass the film support roller 4-1, lift the positioning and clamping mechanism 4-3, and pass the PVC through the film fixed clamping mechanism 4-2, the film positioning clamping mechanism 4-3, and the film moving clamping mechanism 4-4 in sequence until the film is pulled into a position flush with the right side of the film rotary splicing plate 4-5. At this time, put down the positioning and clamping mechanism 4-3 and press the cylinder button of the film moving clamping mechanism 4-4 to clamp the film material. According to the setting, at this time, the film material of the right film roll 9 has passed through the right PVC feeding mechanism, the right tape pasting mechanism, bypassed the rotary swing mechanism, and reached the PVC film pulling mechanism to supply film material to the blister machine.

[0034] During use, the entire mechanism starts up online. Under the precise and effective control of the PLC, signals are sent by triggering each photoelectric switch, and then the cylinders and motors at different positions cooperate with each other to complete actions of different combinations, achieving the purpose of fully automatic cutting and re-bonding of the PVC film of the blister machine, namely: ① Before starting up, wait for the remaining film material of the blister machine to trigger the photoelectric switch for lack of material. After the photoelectric switch is triggered, the PVC film pulling mechanism quickly takes in the remaining film material of the right film roll 9 to the rear of the PVC film pulling mechanism and stops when the photoelectric switch for exhaustion of the PVC film is triggered. The cylinder of the joint pressing mechanism 5-4 acts to press the film joint. ② When starting up, the rotary swing mechanism 5 acts. At this time, since the packaging material of the right film roll 9 is exhausted, the joint pressing mechanism 5-4 presses the film joint and moves in the direction of the PVC feeding mechanism 4 to the left through the reversing servo motor 5-1. At the same time, since the film joint of the left film roll 1 has been clamped by the film moving clamping mechanism 4-4 before the reversing servo 10-1 acts, at this time, the film moving clamping mechanism 4-4 extends forward under the action of the moving cylinder. After extending, it reaches the film rotary splicing plate 4-5. Through program control, at this time, the remaining film joint of the right film roll 9 and the film joint pulled out from the left film roll 1 converge on the film rotary splicing plate. At this time, the left tape sticking mechanism 3 starts to act. The tape pressing and positioning mechanism 3-8 presses the tape. The electric cylinder 3-1 of the moving tape sticking mechanism drives the fixed plate 3-2 to start. The fixed plate 3-2 will drive the tape sticking mechanism to move forward along the linear guide 3-5. When reaching the set position, the film pressing and cutting mechanism 3-4 extends downward to press the film joint converging on the film rotary splicing plate 4-5. The electric cylinder 3-1 of the moving tape sticking mechanism drives the fixed plate 3-2 to start again, and the sticking tape retracts along the original path. At this time, under the action of the cutting knife of the film pressing and cutting mechanism 3-4, the film joint is cut for the first time. The main function of this cutting is to align the film joint at the first cut. After the electric cylinder 3-1 drives the fixed plate 3-2 to retract to the predetermined position, the die pressing and cutting mechanism 3-4 rises. The electric cylinder 3-1 of the moving tape sticking mechanism drives the fixed plate 3-2 to start again, and moves the tape sticking mechanism forward along the linear guide 3-5. When reaching the set position, the tape feeding roller plate 3-9 extends forward to send the tape 3-3 under the film pressing and cutting mechanism 3-4. The tape pressing mechanism 3-6 extends downward to press the film joint that converges and is aligned on the film rotary splicing plate 4-5. At this time, the tape 3-3 is also pressed by the tape pressing mechanism 3-6 onto the joints of the two end films. The tape pressing and positioning mechanism 3-8 rises to disengage from the tape. The electric cylinder 3-1 drives the fixed plate 3-2 to start and retract to the specified position. At this time, the PVC joint has been bonded by the tape pressed on the PVC. The tape pressing and positioning mechanism 3-8 descends to press the tape. The tape cutter 3-7 starts to cut the tape. The tape pressing mechanism 3-6 rises to disengage from the tape. At the same time, release the cylinders of the joint pressing mechanism 5-4 and the film moving clamping mechanism 4-4. After the above actions are completed, the PVC film pulling mechanism starts to continue pulling the film to supply PVC.

[0035] Since the left film roll 1, the right film roll 9, the left and right support PVC film roll mechanisms, the left and right PVC feeding mechanisms, and the left and right tape pasting mechanisms have exactly the same action structures, when the photoelectric material shortage detection of the left film roll 1 detects a shortage of materials in the left film roll 1, the above actions are cycled.

[0036] The above embodiments are only for illustrating the present invention and are not intended to limit the present invention. Those skilled in the relevant technical fields can also make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also fall within the scope of the present invention and should be defined by each claim.

Claims

1. An automatic cutting and re-bonding mechanism for PVC film of a blister machine, characterized in that: It includes symmetrically arranged film rolls, a PVC feeding mechanism, a tape sticking mechanism, a rotary swing mechanism, and a PVC film pulling mechanism. The film rolls are placed on a mechanism for supporting the PVC film rolls. The PVC feeding mechanism is placed above the film rolls. The tape sticking mechanism is installed above the PVC feeding mechanism. The rotary swing mechanism is placed in the middle of two sets of symmetrically arranged tape sticking mechanisms, PVC feeding mechanisms, and tape sticking mechanisms. The PVC film pulling mechanism is arranged above the rotary swing mechanism and is used to pull the film to supply PVC. The PVC feeding mechanism includes a film support roller, a film fixing and clamping mechanism with a fixed cylinder, a film positioning and clamping mechanism with a handle, a film moving and clamping mechanism with a cylinder for moving the film material, a film rotating splicing plate for pressing and fixing the film roll joint, and a rotating cylinder for providing the rotating power for the film rotating splicing plate. The film support roller is installed in front of the film fixing and clamping mechanism. The PVC pulled from the PVC film roll bypasses the film support roller. The positioning and clamping mechanism is lifted, and the PVC passes through the film fixing and clamping mechanism, the film positioning and clamping mechanism, and the film moving and clamping mechanism in sequence until the film is pulled to a position flush with the right side of the film rotating splicing plate. At this time, the positioning and clamping mechanism is lowered, and the cylinder button of the film moving and clamping mechanism is pressed to make the film moving and clamping mechanism clamp the film material. The tape sticking mechanism is used to press the film material and includes an electric cylinder for moving the adhesive tape mechanism, a fixing plate for placing the tape and bonding, pressing, and cutting the tape, a film pressing and cutting mechanism, a linear guide rail for keeping the adhesive tape mechanism for bonding, pressing, and cutting the tape moving in a straight line, a tape pressing mechanism, a tape cutter, a tape positioning and pressing mechanism, and a tape feeding roller plate. With the assistance of the tape feeding roller plate, the film material is cut during the process of sticking the tape on the side. After the tape sticking action is completed, with the assistance of the tape positioning and pressing mechanism, the tape cutter cuts the tape. The power is provided by the electric cylinder of the adhesive tape mechanism for moving the tape, and the moving direction of the mechanism is ensured by the linear guide rail for keeping the adhesive tape mechanism for bonding, pressing, and cutting the tape moving in a straight line. The rotary swing mechanism includes a reversing servo motor for providing rotary power, a reversing bearing fixing seat, a film joint steering plate, and a joint pressing mechanism. The film joint steering plate is connected to the reversing servo motor through a shaft passing through the reversing bearing fixing seat. When the reversing servo motor receives an instruction to start moving, the film joint steering plate will swing left and right around the shaft, and the joint pressing mechanism is used to clamp the PVC film joint. The PVC film pulling mechanism includes a film pulling and pressing cylinder support seat, a film pulling and pressing cylinder, a film pulling driving roller, a film pulling driven roller, a film pulling driven roller fixing frame, and a film pulling power motor. The film pulling and pressing cylinder is installed on the film pulling and pressing cylinder support seat. When the film pulling cylinder moves, the film pulling driven roller fixing bracket is pulled down to make the film pulling driven roller contact and press against the film pulling driving roller. When film pulling is required, the film pulling power motor is started to drive the driving roller to roll.

2. The fully automatic cutting and re-bonding mechanism for the PVC film of the blister machine according to claim 1, wherein: The mechanism for supporting the PVC film roll includes an air shaft that can be inflated and a concave support seat. The film roll is placed on the concave support seat through the air shaft passing through the film roll.

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