Rapid cutting device for PET (Polyethylene Terephthalate) film

Abstract

The utility model provides a rapid cutting device for a PET film, and belongs to the technical field of machinery. The problem of poor stability in the prior art is solved. The rapid cutting device for the PET film comprises a rack, the upper portion of the rack is provided with a cutting platform used for containing the PET film, the rapid cutting device further comprises a pressing assembly, a cutting assembly and a driving assembly, the driving assembly is connected to the lower portion of the rack, and the lower end of the pressing assembly and the lower end of the cutting assembly are both connected with the driving assembly. The upper portion of the pressing assembly is provided with a pressing part used for tightly pressing the cut PET film on the cutting platform, the upper portion of the cutting assembly is provided with a cutting part used for cutting the PET film, and the pressing part and the cutting part are both located over the cutting platform and are adjacent to each other. The device is high in stability.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical technical field relates to a kind of for the quick cutting device of PET film. BACKGROUND

[0002] PET film needs to be cut into appropriate length after preparation forming, to facilitate winding storage.

[0003] The existing cutting device usually directly uses cutting knife to cut, and the PET film will displace during cutting process due to the lack of pressing positioning, which affects the cutting accuracy and has poor stability. SUMMARY

[0004] The utility model discloses a kind of high stability and compact structure's quick cutting device for PET film, to solve the above problems existing in prior art.

[0005] The utility model discloses the purpose can be realized by the following technical scheme:

[0006] A kind of for the quick cutting device of PET film, including rack, the upper portion of the rack has the cutting platform for placing PET film, characterized by further including pressing assembly, cutting assembly and driving assembly, the lower portion of the above-mentioned driving assembly is connected in rack, the lower end of the above-mentioned pressing assembly and cutting assembly is connected with driving assembly, the upper portion of the pressing assembly has the pressing portion that PET film to be cut is tightly pressed at cutting platform, the upper portion of the cutting assembly has the cutting portion for cutting PET film, the pressing portion and cutting portion are located just above cutting platform and are adjacent to each other.

[0007] The device creatively sets up pressing assembly, cutting assembly and driving assembly, and driving assembly simultaneously provides power to pressing assembly and cutting assembly.

[0008] Pressing assembly can be stably moved down to cutting platform under the action of driving assembly, and can press and fix the PET film to be cut at cutting platform.

[0009] After PET film is pressed and fixed, cutting assembly then acts, and cutting operation is processed to the positioned PET film.

[0010] As can be seen, although pressing assembly and cutting assembly are driven by the same driving assembly, driving assembly does not make pressing assembly and cutting assembly act synchronously. Rather, pressing assembly is controlled to act first, and then cutting assembly is driven to act.

[0011] In the above-mentioned rapid cutting device for PET film, the pressing assembly comprises a connecting rod I and a pressing plate, the connecting rod I is vertically arranged and the lower end of the connecting rod I is connected with the driving assembly, the pressing plate is fixedly connected at the upper portion of the connecting rod I, and the lower portion of the pressing plate forms the pressing portion.

[0012] During the driving of the connecting rod I by the driving assembly, the pressing plate at the upper portion of the connecting rod I can be moved close to or away from the cutting platform.

[0013] In the above-mentioned rapid cutting device for PET film, the number of the connecting rod I is two, the two connecting rods I are arranged in parallel and side by side, and the two ends of the pressing plate are fixedly connected with the corresponding connecting rod I.

[0014] The arrangement of the two connecting rods I can improve the stability of the upward and downward movement of the pressing plate.

[0015] In the above-mentioned rapid cutting device for PET film, a connecting rod II is further arranged, the connecting rod II is arranged transversely, and the two ends of the connecting rod II are fixedly connected between the lower ends of the two connecting rods I.

[0016] The connecting rod II can stably connect the two connecting rods I.

[0017] In the above-mentioned rapid cutting device for PET film, the cutting assembly comprises a connecting rod III and a cutter in the shape of a long sheet, one end of the cutter is hingedly connected to the rack, the connecting rod III is vertically arranged, the other end of the cutter is hingedly connected to the upper end of the connecting rod III, and the lower end of the connecting rod III is connected with the driving assembly.

[0018] During the driving of the connecting rod III by the driving assembly, the connecting rod III drives the cutter to move. After the cutter swings around the hinged portion, the cutter can move away from or close to the cutting platform.

[0019] In the above-mentioned rapid cutting device for PET film, the driving assembly comprises a motor, a support, a gear I, a gear II and a gear III, the motor and the support are fixedly connected to the rack, the gear I is located on one side of the gear II and the two gears are engaged, the gear III is located on the other side of the gear II and the two gears are engaged, further comprising a connecting rod IV, a connecting rod V and a connecting rod VI, the inner end of the connecting rod IV is fixedly connected to the gear I, the inner end of the connecting rod V is hingedly connected to the middle portion of the connecting rod II, the outer end of the connecting rod IV is hingedly connected with the outer end of the connecting rod V, the inner end of the connecting rod VI is connected to the gear III, and the outer end of the connecting rod VI is hingedly connected with the lower end of the connecting rod III.

[0020] The gear I, the gear II and the gear III are arranged in front of and behind each other in the transverse direction, the gear I is engaged on one side of the gear II, and the gear III is engaged on the other side of the gear II.

[0021] During the continuous rotation of the gear two driven by the motor, the gear one and the gear two rotate synchronously. Since the gear one is connected with the pressing assembly and the gear three is connected with the cutting assembly, the pressing assembly and the cutting assembly can finally perform corresponding operation processing.

[0022] In the above quick cutting device for PET film, the horizontal rod is fixedly connected to the upper end of the pressing plate, and the end of the horizontal rod is sleeved on the connecting rod one.

[0023] The pressing plate is stably connected to the connecting rod one through the horizontal rod.

[0024] In the above quick cutting device for PET film, the connecting rod one is fixedly connected with a limiting cylinder in a cylindrical shape, the side of the limiting cylinder has a limiting slot penetrating along the axial direction thereof, the horizontal rod is arranged in the limiting slot, the connecting rod one is further sleeved with a spring, and the two ends of the spring are respectively arranged on the upper end in the limiting cylinder and the horizontal rod. Under the elastic force of the spring, the horizontal rod has a tendency to abut against the lower end of the limiting slot.

[0025] The horizontal rod is arranged in the limiting slot of the limiting cylinder and is limited by the limiting slot, so that the horizontal rod can only move within a set stroke range.

[0026] Of course, under the elastic force of the spring, the horizontal rod has a tendency to move to the lowermost end.

[0027] The above structure can make the spring be compressed when the pressing plate contacts the cutting platform, thereby avoiding the rigid contact between the pressing plate and the cutting platform.

[0028] In the above quick cutting device for PET film, the limiting cylinder is fixedly connected to the connecting rod one by the fastener.

[0029] The fastener can be connected to multiple positions on the connecting rod one, so that the position of the limiting cylinder on the connecting rod one can be changed according to actual conditions, thereby effectively improving the compactness of the structure of the whole device.

[0030] In the above quick cutting device for PET film, the width dimension of the pressing plate matches the width dimension of the cutter.

[0031] Such a structure can stably cut the PET film.

[0032] Compared with the prior art, in the above quick cutting device for PET film, the pressing assembly and the cutting assembly can be driven to act in sequence by the same driving assembly, and the PET film to be cut is stably pressed when being cut, so that the cutting precision is relatively high.

[0033] Meanwhile, the same driving assembly has a relatively compact structure and has high practical value. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 is a perspective view of a rapid cutting device for PET film.

[0035] Figure 2 is a front view of a rapid cutting device for PET film.

[0036] In the figure, 1, frame; 1a, cutting platform; 2, link one; 3, pressing plate; 5, link two; 6, link three; 7, cutter; 8, motor; 9, support; 10, gear one; 11, gear two; 12, gear three; 13, link four; 14, link five; 15, link six; 16, crossbar; 17, limiting cylinder; 17a, limiting groove; 18, spring. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0038] It should be noted that when a component is referred to as "mounted on" another component, it can be directly mounted on the other component or there can be a middle component. When a component is referred to as "provided on" another component, it can be directly provided on the other component or there can be a middle component. When a component is referred to as "fixed on" another component, it can be directly fixed on the other component or there can be a middle component.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application herein only for the purpose of describing specific embodiments of the present application, and is not intended to limit the present application. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0040] As Figure 1 and Figure 2As shown, the rapid cutting device for PET film includes a frame 1, the upper part of the frame 1 has a cutting platform 1a for placing the PET film, and further includes a pressing assembly, a cutting assembly and a driving assembly, the driving assembly is connected to the lower part of the frame 1, the lower ends of the pressing assembly and the cutting assembly are connected to the driving assembly, the upper part of the pressing assembly has a pressing part for tightly pressing the PET film to be cut on the cutting platform, and the upper part of the cutting assembly has a cutting part for cutting the PET film, and the pressing part and the cutting part are located above the cutting platform and are adjacent to each other.

[0041] The pressing assembly includes a connecting rod one 2 and a pressing plate 3, the connecting rod one 2 is vertically arranged and the lower end of the connecting rod one 2 is connected to the driving assembly, and the pressing plate 3 is fixedly connected to the upper part of the connecting rod one 2, and the lower part of the pressing plate 3 forms the pressing part.

[0042] The number of the connecting rod one 2 is two, the two connecting rod ones 2 are parallel and adjacent to each other, and the two ends of the pressing plate 3 are respectively fixedly connected to the corresponding connecting rod one 2.

[0043] Further including a connecting rod two 5, the connecting rod two 5 is transversely arranged and the two ends of the connecting rod two 5 are respectively fixedly connected between the lower ends of the two connecting rod ones 2.

[0044] The cutting assembly includes a connecting rod three 6 and a cutter 7 in the shape of a long sheet, one end of the cutter 7 is hingedly connected to the frame 1, the connecting rod three 6 is vertically arranged, the other end of the cutter 7 is hingedly connected to the upper end of the connecting rod three 6, and the lower end of the connecting rod three 6 is connected to the driving assembly.

[0045] The driving assembly includes a motor 8, a support 9, a gear one 10, a gear two 11 and a gear three 12, the motor 8 and the support 9 are fixedly connected to the frame 1, the gear one 10 is located on one side of the gear two 11 and the two gears are engaged, the gear three 12 is located on the other side of the gear two 11 and the two gears are engaged, further including a connecting rod four 13, a connecting rod five 14 and a connecting rod six 15, the inner end of the connecting rod four 13 is fixedly connected to the gear one 10, the inner end of the connecting rod five 14 is hingedly connected to the middle part of the connecting rod two 5, the outer end of the connecting rod four 13 is hingedly connected to the outer end of the connecting rod five 141, the inner end of the connecting rod six 15 is connected to the gear three 12, and the outer end of the connecting rod six 15 is hingedly connected to the lower end of the connecting rod three 6.

[0046] The upper end of the pressing plate 3 is fixedly connected with a cross rod 16, and the end part of the cross rod 16 is sleeved on the connecting rod one 2.

[0047] The connecting rod one 2 is fixedly connected with a limiting cylinder 17 in the shape of a cylinder, the side part of the limiting cylinder 17 has a limiting slot 17a penetrating in the axial direction thereof, the cross rod 16 is arranged at the limiting slot 17a, a spring 18 is further sleeved on the connecting rod one 2, the two ends of the spring 18 are respectively arranged at the upper end in the limiting cylinder 17 and the cross rod 16, and the cross rod 16 has a tendency to abut against the lower end of the limiting slot 17a under the elastic force of the spring 18.

[0048] The limiting cylinder 17 is fixed on the connecting rod 1 by fasteners.

[0049] The width of the pressing plate 3 matches the width of the cutter 7.

[0050] The present application is a fast cutting device for PET film, which can drive the pressing assembly and the cutting assembly by the same driving assembly, and the cutting precision is high because the PET film is pressed stably during cutting.

[0051] Meanwhile, the same driving assembly has a compact structure and high practical value.

[0052] The pressing assembly positions the PET film before the cutting assembly cuts the PET film, and the PET film is fixed during cutting, so the operator does not need to check the cutting position before cutting, and the cutting operation is fast and stable.

[0053] The technical features of the above embodiments can be combined arbitrarily, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but as long as the combinations do not contradict each other, they should be considered within the scope of the present application.

[0054] Those skilled in the art should recognize that the above embodiments are used to illustrate the present application, but are not used as a limitation of the present application, and any appropriate changes and variations to the above embodiments within the spirit and scope of the present application are within the scope of the present application.

Claims

1. A rapid cutting device for PET film comprising a frame, the upper part of which has a cutting platform for placing the PET film, characterized in that, The cutting assembly is connected to the driving assembly, and the cutting assembly includes a cutting knife and a connecting rod three.

2. The rapid cutting device for PET film according to claim 1, wherein The cutting assembly includes a connecting rod three and a cutting knife in the shape of a long sheet.

3. The rapid cutting device for PET film according to claim 2, wherein The cutting knife is hingedly connected to the frame at one end, and the connecting rod three is vertically arranged.

4. The rapid cutting device for PET film according to claim 3, wherein The driving assembly includes a motor, a bracket, a gear one, a gear two, and a gear three.

5. The rapid cutting device for PET film according to claim 4, wherein The motor and the bracket are fixedly connected to the frame.

6. The rapid cutting device for PET film according to claim 5, wherein The gear one is located on one side of the gear two and is engaged with the gear two.

7. The rapid cutting device for PET film according to claim 6, wherein The gear three is located on the other side of the gear two and is engaged with the gear two.

8. The rapid cutting device for PET film according to claim 7, characterized in that, The driving assembly further includes a connecting rod four, a connecting rod five, and a connecting rod six.

9. The rapid cutting device for PET film according to claim 8, wherein The inner end of the connecting rod four is fixedly connected to the gear one.

10. The rapid cutting device for PET film according to claim 9, wherein The inner end of the connecting rod five is hingedly connected to the middle part of the connecting rod two. The outer end of the connecting rod four is hingedly connected to the outer end of the connecting rod five. The inner end of the connecting rod six is connected to the gear three. The outer end of the connecting rod six is hingedly connected to the lower end of the connecting rod three. The upper end of the pressing plate is fixedly connected with a cross bar. The cross bar is sleeved on the connecting rod one at the end portion. The connecting rod one is fixedly connected with a limiting cylinder in the shape of a tube. The side portion of the limiting cylinder has a limiting slot penetrating in the axial direction. The cross bar is arranged in the limiting slot. The limiting cylinder is fixedly connected to the connecting rod one by a fastener. The width of the pressing plate matches the width of the cutting knife.

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