Plastic film and plastic film processing method

Abstract

The invention belongs to the technical field of plastic film processing, and particularly relates to a plastic film, a plastic film processing method and plastic film processing equipment, the plastic film processing equipment comprises a transverse rod and a guide part, a movable frame is slidably connected to the transverse rod, two contact heads are slidably connected to the movable frame, and a cutter is slidably connected to each contact head; a first compression spring is fixedly connected between each contact head and the moving frame, the two contact heads can abut against the two sides of the guide part respectively, a sliding block is slidably connected to the transverse rod, a compression rod is slidably connected to the transverse rod, the sliding block can push the moving frame to slide, and a second compression spring is fixedly connected between the moving frame and the transverse rod. A second compression spring is fixedly connected between the movable frame and the transverse rod, and the plastic film processing equipment is used and comprises the steps that firstly, the sliding block is operated to slide on the transverse rod, and then the two cutters slide downwards; and the effect of cutting edges of plastic films with different forming widths can be stably achieved, and the machining stability is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of plastic film processing, and in particular relates to a plastic film and a plastic film processing method. Background Art

[0002] Products processed from plastic films are widely used in various fields, such as packaging, agriculture, construction, electronics, medical treatment, etc. Among them, packaging film is one of the main application areas of plastic film processing, including food packaging film, industrial packaging film, express packaging film, etc.

[0003] In the process of processing plastic film, due to the different technical means in the forming process, some plastic films will have irregular edges on both sides after forming. In order to facilitate subsequent use and ensure the factory effect, the plastic film will be trimmed before winding to remove the irregular edges of the plastic film. In order to improve economic benefits and increase production convenience, most of the trimming equipment in the prior art can perform trimming operations on plastic films of different widths. However, the equipment in the prior art can only rely on a single power source to complete the effect of changing the cutting width. When the single power source fails, the cutting width can only be restored by stopping the processing and repairing the power source, which delays the processing progress and cannot stably guarantee the effect of changing the cutting width. Summary of the invention

[0004] In view of this, the technical problem to be solved by the present invention is to provide a plastic film and a plastic film processing method, which can stably achieve the effect of edge cutting for plastic films with different molding widths and ensure processing stability.

[0005] A plastic film processing equipment comprises a transverse rod and a guide part, a movable frame is slidably connected to the transverse rod, two contact heads are slidably connected to the movable frame, each contact head is slidably connected to a cutter, a first compression spring is fixedly connected between each contact head and the movable frame, the two contact heads can respectively abut against two sides of the guide part, a slider is slidably connected to the transverse rod, a pressure rod is slidably connected to the transverse rod, the slider can push the movable frame to slide, a second compression spring is fixedly connected between the movable frame and the transverse rod, and a second compression spring is fixedly connected between the movable frame and the transverse rod.

[0006] Also included is an auxiliary knife slidably connected to the transverse rod.

[0007] It also includes a push plate slidably connected to the transverse rod, the transverse rod is connected to a cylindrical rod, a third compression spring is fixedly connected between the push plate and the transverse rod, and a fourth compression spring is fixedly connected between the auxiliary knife and the transverse rod.

[0008] The cylindrical rod is slidably connected to the auxiliary knife.

[0009] The utility model also comprises an adjusting rod which is rotatably connected to the guide part.

[0010] A plastic film processing method, using the plastic film processing equipment:

[0011] Step 1: operate the slider to slide on the horizontal rod, and then slide the two cutters downward;

[0012] Step 2, allowing the formed plastic film that has undergone melting, forming and cooling operations to gradually pass through the lower side of the movable frame from left to right;

[0013] Step 3, use the inspection head to slide back and forth on the transverse rod;

[0014] Step 4: Roll up the cut plastic film to complete the processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0016] Figure 1 It is a structural schematic diagram of a mobile rack;

[0017] Figure 2 is a structural schematic diagram of the guide part;

[0018] Figure 3 is a schematic diagram of the structure of the transverse rod;

[0019] Figure 4 It is a structural schematic diagram of the auxiliary knife;

[0020] Figure 5 is a schematic diagram of the structure of the adjusting rod;

[0021] Figure 6 It is a schematic diagram of the structure of the inspection head;

[0022] Figure 7 and Figure 8 It is a schematic diagram of the overall structure of a plastic film processing equipment. DETAILED DESCRIPTION

[0023] like Figure 1-3 and Figure 6-8 As shown:

[0024] A plastic film processing device comprises a transverse rod 401 and a guide part 201, a movable frame 101 is slidably connected to the transverse rod 401, two contact heads 102 are slidably connected to the movable frame 101, a cutter 103 is slidably connected to each contact head 102, a first compression spring is fixedly connected between each contact head 102 and the movable frame 101, the two contact heads 102 can respectively abut against both sides of the guide part 201, a slider 303 is slidably connected to the transverse rod 401, a pressure rod 305 is slidably connected to the transverse rod 401, and the slider 303 can push the movable frame 101 to slide A rectangular plate is fixedly connected to the movable frame 101, and the height of the rectangular plate is higher than the height of the slider 303. A second compression spring is fixedly connected between the movable frame 101 and the transverse rod 401, and the second compression spring can provide a forward elastic force for the slider 303. The two first compression springs can respectively make the two contact heads 102 tightly press against the two sides of the guide portion 201. A first motor is fixedly connected to the transverse rod 401, and a first lead screw is fixedly connected to the output shaft of the first motor. The first lead screw is threadedly connected to the slider 303, and each contact head 102 is fixedly connected with a first electric push rod that can push the cutter 103 to slide.

[0025] The operating slider 303 slides on the transverse rod 401, and then the slider 303 pushes the movable frame 101 to slide on the transverse rod 401 to overcome the elastic force of the second compression spring. In this process, the two contact heads 102 are pushed by the surface of the guide part 201, so that the two cutters 103 move in the horizontal direction. After the movable frame 101 moves to a suitable position, the operating pressure rod 305 slides down, and then the pressure rod 305 is pressed against the rectangular plate on the movable frame 101, so that the movable frame 101 after sliding is fixed, and then the processed plastic film is formed by Gradually passing the lower side of the moving frame 101 from left to right, during this process, the two cutters 103 are operated to slide downward, so that the two cutters 103 are pressed against the plastic film, and then during the movement of the plastic film, the two cutters 103 can automatically cut the edges of both sides of the plastic film to complete the effect of cutting off the irregular edges, and by operating the sliding moving frame 101, the distance between the two cutters 103 can be changed, so that the two cutters 103 can perform edge cutting operations on plastic films with different molding widths, thereby expanding the application range of the device;

[0026] The rectangular plate is set so that the pressing rod 305 can only fix the moving frame 101, and will not have a fixing effect on the slider 303, thereby ensuring the normal progress of subsequent processing operations.

[0027] Since the driving effect is achieved by driving the movable frame 101 to slide by sliding the slider 303, even when the position of the movable frame 101 needs to be adjusted and the power source driving the slider 303 to slide fails, so that the slider 303 cannot slide normally, the staff can adopt other temporary alternative power sources or directly manually push the movable frame 101 to slide, so that the effect of changing the position of the movable frame 101 can still be achieved smoothly. Subsequently, the sliding pressure rod 305 is used to fix the movable frame 101 after sliding, so that the subsequent edge cutting operation can be carried out smoothly. That is, the present equipment can stably achieve the effect of edge cutting for plastic films with different molding widths, thereby ensuring processing stability.

[0028] like Figure 4 As shown:

[0029] Also included is an auxiliary knife 404 slidably connected to the transverse rod 401 .

[0030] As the plastic film gradually passes the lower side of the movable frame 101 from left to right, the auxiliary knife 404 can be slid downward periodically, and the auxiliary knife 404 can be used to vertically cut the plastic film periodically, so that there are multiple rows of fracture positions on the plastic film for subsequent tearing, thereby bringing convenience to subsequent practical use.

[0031] like Figure 4 and Figure 7 As shown:

[0032] It also includes a push plate 402 slidably connected to the transverse rod 401, the transverse rod 401 is connected to a cylindrical rod 403, a third compression spring is fixedly connected between the push plate 402 and the transverse rod 401, the third compression spring can provide a backward elastic force to the push plate 402, a fourth compression spring is fixedly connected between the auxiliary knife 404 and the transverse rod 401, the fourth compression spring can provide a thrust for the auxiliary knife 404 to slide upward.

[0033] During the operation of the equipment, after the slider 303 is used to complete the pushing operation of the movable frame 101, the slider 303 is reset, and then the slider 303 is operated to slide forward on the horizontal rod 401, and then the slider 303 is used to push the push plate 402 to slide forward on the horizontal rod 401. During the sliding process of the push plate 402, the push plate 402 will press the cylindrical rod 403 to move downward, thereby moving the auxiliary knife 404 downward, so that the auxiliary knife 404 is used to complete the vertical cutting operation of the plastic film, and then the slider 303 can be made to slide back and forth, thereby making the auxiliary knife 404 slide back and forth up and down to complete the vertical cutting operation.

[0034] like Figure 4 As shown:

[0035] The cylindrical rod 403 is slidably connected to the auxiliary knife 404 , and a second electric push rod is fixedly connected between the cylindrical rod 403 and the auxiliary knife 404 .

[0036] In actual use, if there is a failure in the power source driving the slider 303 to slide, resulting in the slider 303 being unable to move normally, and then it is necessary to temporarily use other power sources to drive the auxiliary knife 404 to slide up and down, the staff can operate the cylindrical rod 403 to slide on the auxiliary knife 404, so that the cylindrical rod 403 and the push plate 402 are staggered, and then the restriction effect of the push plate 402 on the cylindrical rod 403 is removed, which brings convenience to the subsequent operation of driving the auxiliary knife 404;

[0037] The other power sources mentioned above may be common driving power sources in the prior art, such as a cylinder, a lead screw and a hydraulic cylinder capable of performing a linear pushing operation.

[0038] like Figure 2 As shown:

[0039] The device further comprises an adjusting rod 202 rotatably connected to the guide portion 201 , and a second motor capable of driving the adjusting rod 202 to rotate is fixedly connected to the guide portion 201 .

[0040] In actual use, if the plastic film cannot pass through the lower side of the guide portion 201 but is slightly offset, after operating the movable frame 101 to slide to a suitable position, the adjusting rod 202 can be operated to rotate on the guide portion 201, so that the adjusting rod 202 moves one of the two contact heads 102 to slide slightly on the movable frame 101, thereby adjusting the positions of the two cutters 103 to adapt to the passing of the plastic film, so as to facilitate uniform trimming of both sides of the plastic film.

[0041] like Figure 3 and Figure 6 As shown:

[0042] It also includes a test head 304 slidably connected to the slider 303 , a fifth compression spring is fixedly connected between the slider 303 and the test head 304 , an auxiliary block 203 is fixedly connected to the adjustment rod 202 , and the fifth compression spring can provide downward elastic force for the test head 304 .

[0043] During the normal sliding of the slider 303, the inspection head 304 on the slider 303 will be pushed by the auxiliary block 203 when passing through the auxiliary block 203, and then slide upward on the slider 303 to overcome the elastic force of the fifth compression spring. During the reciprocating sliding of the slider 303, the inspection head 304 can slide on the slider 303 for multiple times, and then by monitoring the sliding of the inspection head 304, it can be accurately determined whether the slider 303 slides normally on the transverse rod 401, and then the situation can be discovered in time when the slider 303 fails, thereby achieving a self-inspection effect on the operation status of the equipment;

[0044] When monitoring the sliding of the inspection head 304, a displacement sensor can be connected to the slider 303 by tightening the bolts on the slider 303, and then the moving end of the displacement sensor is fixed to the inspection head 304. When the inspection head 304 slides, the displacement sensor can obtain the signal and convert the signal into an electrical signal for transmission, thereby achieving the effect of monitoring the sliding of the inspection head 304.

[0045] like Figure 5 As shown:

[0046] The auxiliary block 203 is an arc surface that gradually rises in the counterclockwise direction.

[0047] The setting of the arc surface makes it possible for the auxiliary block 203 to change the distance that the inspection head 304 slides upward after the adjustment rod 202 rotates, and then by monitoring the sliding condition of the inspection head 304, it is also possible to check whether the adjustment rod 202 rotates normally, further enhancing the self-inspection effect of the equipment.

[0048] like Figure 5 As shown:

[0049] The auxiliary block 203 is detachably connected to the adjusting rod 202 via bolts.

[0050] In actual use, the auxiliary block 203 can be disassembled and replaced by loosening the bolts, thereby maintaining the transmission effect of the auxiliary block 203 for a long time.

[0051] A plastic film processing method, using the plastic film processing equipment:

[0052] Step 1: operate the slider 303 to slide on the transverse rod 401, and then slide the two cutters 103 downward;

[0053] Step 2, allowing the formed plastic film that has undergone melting, forming and cooling operations to gradually pass through the lower side of the movable frame 101 from left to right;

[0054] Step 3, use the inspection head 304 to slide back and forth on the transverse rod 401;

[0055] Step 4: Roll up the cut plastic film to complete the processing.

[0056] A plastic film is produced by the plastic film processing method.

Claims

1. A plastic film processing equipment, characterized in that: The invention comprises a transverse rod (401) and a guide part (201); a movable frame (101) is slidably connected to the transverse rod (401); two contact heads (102) are slidably connected to the movable frame (101); each contact head (102) is slidably connected to a cutter (103); a first compression spring is fixedly connected between each contact head (102) and the movable frame (101); the two contact heads (102) can respectively abut against two sides of the guide part (201); a slider (303) is slidably connected to the transverse rod (401); a compression rod (305) is slidably connected to the transverse rod (401); the slider (303) can push the movable frame (101) to slide; a second compression spring is fixedly connected between the movable frame (101) and the transverse rod (401); and a second compression spring is fixedly connected between the movable frame (101) and the transverse rod (401).

2. A plastic film processing equipment according to claim 1, characterized in that: It also includes an auxiliary knife (404) slidably connected to the transverse rod (401).

3. A plastic film processing equipment according to claim 2, characterized in that: It also includes a push plate (402) slidably connected to the transverse rod (401), the transverse rod (401) is connected to a cylindrical rod (403), a third compression spring is fixedly connected between the push plate (402) and the transverse rod (401), and a fourth compression spring is fixedly connected between the auxiliary knife (404) and the transverse rod (401).

4. A plastic film processing equipment according to claim 3, characterized in that: The cylindrical rod (403) is slidably connected to the auxiliary knife (404).

5. A plastic film processing equipment according to claim 4, characterized in that: It also includes an adjusting rod (202) rotatably connected to the guide part (201).

6. A plastic film processing equipment according to claim 5, characterized in that: It also includes a testing head (304) slidably connected to the slider (303), a fifth compression spring is fixedly connected between the slider (303) and the testing head (304), and an auxiliary block (203) is connected to the adjusting rod (202).

7. A plastic film processing equipment according to claim 6, characterized in that: The auxiliary block (203) is a curved surface that gradually rises in the counterclockwise direction.

8. The plastic film processing equipment according to claim 7, characterized in that: The auxiliary block (203) is detachably connected to the adjustment rod (202) via bolts.

9. A plastic film processing method, characterized in that: Using the plastic film processing equipment described in claim 6: Step 1: operate the slider (303) to slide on the transverse rod (401), and then slide the two cutters (103) downward; Step 2, allowing the formed plastic film that has undergone melting, forming and cooling operations to gradually pass through the lower side of the movable frame (101) from left to right; Step 3, using the inspection head (304) to slide back and forth on the transverse rod (401); Step 4: Roll up the cut plastic film to complete the processing.

10. A plastic film, characterized in that: The plastic film is made by the plastic film processing method described in claim 9.

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