PET film cutting device

Abstract

The utility model belongs to the field of cutting devices, and particularly relates to a PET film cutting device which comprises a device body, an auxiliary cutting device is arranged on the surface of the device body, the auxiliary cutting device comprises a sliding sleeve, and the bottom face of the sliding sleeve is arranged on the surface of the device body. According to the PET film cutting device, through the arranged auxiliary cutting device, when a PET film needs to be cut, a downward pressing device pushes a moving plate to move, so that the upper surface of a rack is extruded through a pressing block, the rack moves downwards to drive a gear to rotate, and the gear rotates to push a bottom table plate to move upwards; the rubber fixing blocks of the fixing device are slightly higher than the cutting knife, so that before the cutting knife touches the PET film, the two rubber fixing blocks extrude each other to fix the PET film, and the cutting knife extrudes and cuts the fixed PET film, so that the PET film at the cutting position is prevented from being excessively stretched by the cutting knife; therefore, the area of the thinned PET film is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to cutting device technical field, concretely is a PET film cutting device. BACKGROUND

[0002] PET film is the short name of polyethylene terephthalate film, is the thermoplastic plastic film that PTA and EG are polycondensation under the presence of heating, catalyst and stabilizer, and the tenacity is the best in all thermoplastics, and the tensile strength and impact strength are much higher than general film, and the size is stable, and it is not easy to deform, and it is suitable for printing and paper bag secondary processing.

[0003] At present, in the prior art, most of the film cutting device, when cutting the film, often is through the cutting knife and presses the film and breaks, and the cutting of the PET film by this kind of way will make the film near the cutting part be stretched by the pressing of the cutting knife, so that the thickness of most of the PET film is thinned, thereby causing great waste. In view of this, we propose a PET film cutting device. SUMMARY

[0004] The main purpose of the utility model is to provide a PET film cutting device, which can solve the problems raised in the above technical background.

[0005] In order to achieve the above purpose, the utility model provides a PET film cutting device, which comprises a device main body, the surface of the device main body is provided with an auxiliary cutting device, and the auxiliary cutting device comprises:

[0006] The bottom surface of the sliding sleeve is arranged on the surface of the device main body, the inner wall of the sliding sleeve is slidably connected with the surface of the rack, the surface of the rack is engaged with the surface of the gear, the surface of the gear is rotatably connected with the surface of the sliding sleeve, and the surface of the gear is engaged with the surface of the base plate.

[0007] Preferably, the base plate is arranged on the inner wall of the device main body, the upper surface of the base plate is fixedly connected with a fixing device, and the upper surface of the base plate is provided with a cutting.

[0008] Preferably, the fixing device comprises a mounting groove, the surface of the mounting groove is fixedly connected with the upper surface of the base plate, the inner wall of the mounting groove is slidably connected with a rubber fixing block, the bottom surface of the rubber fixing block is fixedly connected with the surface of the reed, and the two ends of the reed are fixedly connected with the inner wall of the mounting groove.

[0009] Preferably, the device body comprises a frame, the surface of the frame is fixedly connected with a sliding sleeve, the surface of the frame is provided with a sliding groove, the inner wall of the sliding groove is slidably connected with a bottom plate, the inner wall of the frame is fixedly connected with a pressing device, and the output end of the pressing device is fixedly connected with a moving plate.

[0010] Preferably, the upper surface of the moving plate is rotatably connected with one end of an articulated rod, the other end of the articulated rod is rotatably connected with one end of a connecting rod, the other end of the connecting rod is rotatably connected with the surface of the frame, and the articulated rod is rotatably connected with both ends of a synchronous rod.

[0011] Preferably, the surface of the moving plate is fixedly connected with a pressing block, the bottom surface of the moving plate is fixedly connected with a cutting knife, and the bottom surface of the moving plate is provided with a fixing device. Beneficial effects

[0012] The PET film cutting device has the following beneficial effects:

[0013] (1) The PET film cutting device, when PET film needs to be cut, the pressing device pushes the moving plate to move, so that the upper surface of the rack is extruded by the pressing block, the rack moves downward to drive the gear to rotate, the gear pushes the bottom plate to move upward, the rubber fixing blocks of the fixing device are slightly higher than the cutting knife, so that the two rubber fixing blocks extrude each other to fix the PET film before the cutting knife touches the PET film, the spring sheet is compressed by the extrusion of the two rubber fixing blocks, so that the rubber fixing blocks are pressed back into the installation groove, the cutting knife extrudes and cuts the fixed PET film, the cutting part of the PET film with high toughness is fixed by the extrusion of the two rubber fixing blocks, so that the PET film at the cutting part is not excessively stretched by the cutting knife, and the area of the PET film with reduced thickness is reduced.

[0014] (2) The PET film cutting device, when cutting is completed, the moving plate is retracted by the pressing device, the rack loses the extrusion of the pressing block, and the bottom plate moves downward under the action of gravity, the rack is reset by the gear, so that the device can be quickly reset without additional power. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the structures shown in the drawings without creative labor for those skilled in the art.

[0016] Figure 1 It is the whole structure schematic view of the utility model;

[0017] Figure 2 It is the whole side view structure schematic view of the utility model;

[0018] Figure 3 It is the whole cross section structure schematic view of the utility model;

[0019] Figure 4 It is the A amplification structure schematic view of the utility model.

[0020] Explanation of reference numerals: 1, device main body;2, auxiliary cutting device;101, frame;102, sliding chute;103, pressing device;104, moving plate;105, hinged rod;106, connecting rod;107, with synchronous rod;108, pressing block;109, cutting knife;201, sliding sleeve;202, rack;203, gear;204, base plate;205, fixing device;2051, mounting groove;2052, rubber fixing block;2053, reed;206, cutting groove.

[0021] The utility model realizes the purpose, functional characteristics and advantages, which will be further described with reference to the drawings in combination with the embodiments. Specific implementation

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, instead of all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] Please refer to Figures 1-4This utility model proposes a PET film cutting device, including a device body 1. The device body 1 includes a frame 101. A sliding sleeve 201 is fixedly connected to the surface of the frame 101. A groove 102 is formed on the surface of the frame 101. A base plate 204 is slidably connected to the inner wall of the groove 102. A pressing device 103 is fixedly connected to the inner wall of the frame 101. The pressing device 103 can be an existing pneumatic cylinder or electric cylinder. A moving plate 104 is fixedly connected to the output end of the pressing device 103. The upper surface of the moving plate 104 rotates with one end of the hinge rod 105. The other end of the hinge rod 105 is rotatably connected to one end of the connecting rod 106. There are two sets of hinge rods 105 and connecting rods 106, and the two sets of hinge rods 105 and connecting rods 106 are set at both ends of the synchronizing rod 107. The other end of the connecting rod 106 is rotatably connected to the surface of the frame 101. The two ends of the hinge rod 105 and the synchronizing rod 107 are rotatably connected. A pressure block 108 is fixedly connected to the surface of the moving plate 104. A cutting blade 109 is fixedly connected to the bottom surface of the moving plate 104. A fixing device 205 is provided on the bottom surface of the moving plate 104.

[0024] An auxiliary cutting device 2 is provided on the surface of the main body 1. The auxiliary cutting device 2 includes a sliding sleeve 201, the bottom surface of which is disposed on the surface of the main body 1. The inner wall of the sliding sleeve 201 is slidably connected to the surface of the rack 202. The surface of the rack 202 meshes with the surface of the gear 203. The surface of the gear 203 is rotatably connected to the surface of the sliding sleeve 201. The sliding sleeve 201 is used to limit the rack 202 and ensure the stability of the rack 202's sliding. A gear 203 is rotatably connected to the sliding sleeve 201. The gear 203 is connected to the sliding sleeve 201 through a connecting frame and rotates on the connecting frame. 03. After cutting is completed, the moving plate 104 is retracted by the pressing device 103, causing the rack 202 to lose the pressure of the pressure block 108. The base plate 204 moves downwards under gravity, and the gear 203 pushes the rack 202 to reset, allowing the device to reset quickly without additional power. The surface of the gear 203 meshes with the surface of the base plate 204. The base plate 204 is located on the inner wall of the device body 1. A fixing device 205 is fixedly connected to the upper surface of the base plate 204. A cutting groove 206 is formed on the upper surface of the base plate 204. The fixing device 205 includes a mounting groove 2051. The surface of the mounting groove 2051 is fixedly connected to the upper surface of the base plate 204. A rubber fixing block 2052 is slidably connected to the inner wall of the mounting groove 2051. The bottom surface of the rubber fixing block 2052 is fixedly connected to the surface of the spring 2053. The two ends of the spring 2053 are fixedly connected to the inner wall of the mounting groove 2051. When the PET film needs to be cut, the pressing device 103 pushes the moving plate 104 to move, thereby squeezing the upper surface of the rack 202 through the pressure block 108, causing the rack 202 to move downward and drive the gear 203 to rotate. The rotation of the gear 203 pushes the base plate 204 to move upward, while its fixing device 205... The rubber fixing block 2052 is slightly higher than the cutting blade 109, so that before the cutting blade 109 touches the PET film, the two rubber fixing blocks 2052 squeeze each other to fix the PET film. The mutual squeezing of the two rubber fixing blocks 2052 compresses the spring 2053, thereby pressing the rubber fixing blocks 2052 back into the mounting groove 2051, so that the cutting blade 109 squeezes and cuts the fixed PET film. By fixing the PET film by the mutual squeezing of the two rubber fixing blocks 2052, the cut part of the PET film with high toughness is fixed, thereby avoiding excessive stretching of the PET film at the cut part by the cutting blade 109.

[0025] In this invention, when the PET film needs to be cut, the pressing device 103 pushes the moving plate 104 to move, thereby pressing the upper surface of the rack 202 through the pressure block 108. This causes the rack 202 to move downward, driving the gear 203 to rotate. The rotation of the gear 203 pushes the base plate 204 upward. The rubber fixing block 2052 of the fixing device 205 is slightly higher than the cutting blade 109, so that the two rubber fixing blocks 2052 are mutually fixed before the cutting blade 109 touches the PET film. The PET film is fixed by compression. The two rubber fixing blocks 2052 squeeze each other, which compresses the spring 2053, so that the rubber fixing blocks 2052 are pressed back into the mounting groove 2051, and the cutting blade 109 squeezes and cuts the fixed PET film. After the cutting is completed, its moving plate 104 is retracted by the pressing device 103, so that the rack 202 is freed from the pressure of the pressure block 108, and the base plate 204 moves downward under the action of gravity, and pushes the rack 202 to reset through the gear 203.

[0026] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A PET film cutting device comprising a device body (1), characterized in that: The surface of the device body (1) is provided with an auxiliary cutting device (2), the auxiliary cutting device (2) comprises: The bottom surface of the sliding sleeve (201) is arranged on the surface of the device body (1), the inner wall of the sliding sleeve (201) is in sliding connection with the surface of the rack (202), the surface of the rack (202) is in engagement with the surface of the gear (203), the surface of the gear (203) is in rotary connection with the surface of the sliding sleeve (201), and the surface of the gear (203) is in driving engagement with the surface of the bottom plate (204).

2. The PET film cutting apparatus according to claim 1, wherein: The bottom plate (204) is arranged on the inner wall of the device body (1), and the upper surface of the bottom plate (204) is fixedly connected with a fixing device (205), and the upper surface of the bottom plate (204) is provided with a cutting groove (206).

3. The PET film cutting apparatus of claim 2, wherein: The fixing device (205) comprises a mounting groove (2051), the surface of the mounting groove (2051) is fixedly connected with the upper surface of the bottom plate (204), the inner wall of the mounting groove (2051) is in sliding connection with a rubber fixing block (2052), the bottom surface of the rubber fixing block (2052) is fixedly connected with the surface of a reed (2053), and the two ends of the reed (2053) are fixedly connected with the inner wall of the mounting groove (2051).

4. The PET film cutting apparatus according to claim 3, wherein: The device body (1) comprises a frame (101), the surface of the frame (101) is fixedly connected with a sliding sleeve (201), the surface of the frame (101) is provided with a sliding groove (102), the inner wall of the sliding groove (102) is in sliding connection with a bottom plate (204), the inner wall of the frame (101) is fixedly connected with a pressing device (103), and the output end of the pressing device (103) is fixedly connected with a moving plate (104).

5. The PET film cutting apparatus of claim 4, wherein: The upper surface of the moving plate (104) is in rotary connection with one end of a hinged rod (105), the other end of the hinged rod (105) is in rotary connection with one end of a connecting rod (106), the other end of the connecting rod (106) is in rotary connection with the surface of the frame (101), and the hinged rod (105) is in rotary connection with both ends of a synchronous rod (107).

6. The PET film cutting apparatus of claim 5, wherein: The surface of the moving plate (104) is fixedly connected with a pressing block (108), the bottom surface of the moving plate (104) is fixedly connected with a cutting knife (109), and the bottom surface of the moving plate (104) is provided with a fixing device (205).

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