Crushing device for production of PET (Polyethylene Terephthalate) film

Abstract

The utility model particularly relates to the field of PET film production equipment, and discloses a PET film production smashing device which comprises a smashing box, a feeding hopper is inserted into the top end of the smashing box, a base is fixedly arranged at the bottom end of the smashing box, and two first air cylinders are symmetrically and fixedly arranged on the surface, close to the smashing box, of the base. Supporting frames are fixedly arranged at the output ends of the top ends of the first air cylinders, collecting boxes are rotationally connected into the supporting frames, and clamping blocks are symmetrically and fixedly arranged on the two side walls of each collecting box. Through the arrangement of the supporting frame, the first air cylinder, the collecting boxes, the first connecting base, the first rotating shaft, the second air cylinder, the second connecting base and the second rotating shaft, the two collecting boxes are made of plastic materials and used for receiving unqualified products falling down from a waste tank, the supporting frame and the first air cylinder can be pushed to the top end by starting the collecting boxes, and the unqualified products are collected; and then the second air cylinder is started to push the collecting box to rotate around the clamping block, so that the raw materials are poured into the feeding hopper to be circularly crushed, and the raw material circular crushing efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of PET film production equipment, in particular to a PET film production crushing device. Background Art

[0002] PET polyester film, also known as PET film for short, is characterized by high temperature resistance, good printing, easy processing, good voltage resistance and insulation. It is made of polyethylene terephthalate as raw material, extruded into thick sheets, and then biaxially stretched into a film material. It is a colorless, transparent, glossy film with excellent mechanical properties, high rigidity, hardness and toughness, puncture resistance, friction resistance, high and low temperature resistance, chemical resistance, oil resistance, good air tightness and fragrance retention. It is one of the commonly used barrier composite film substrates.

[0003] Existing technical solutions, such as announcement number: CN217862273U. The utility model discloses a pulverizing device for PET film production, including a pulverizing box for PET film production, a feed hopper and a square opening are arranged in the middle of the top of the pulverizing box for PET film production, the square opening is opened on the pulverizing box for PET film production, a hopper cover is hinged on the top of the feed hopper, pulverizing rollers are symmetrically arranged above the inner cavity of the pulverizing box for PET film production, a first motor is symmetrically arranged on the front side of the PET film production pulverizing box, a rotating shaft is connected to the output end of the rear side of the first motor, the raw materials are pulverized by the pulverizing rollers, and the pulverized raw materials are filtered by the filter net, so that the raw materials that meet the standards fall to the bottom surface of the inner cavity of the pulverizing box for PET film production and are discharged through the discharge port, and the raw materials that do not meet the standards are collected by a collecting box, and are thrown into the pulverizing box for PET film production through the feed hopper and the square opening again for re-pulverization, thereby ensuring the pulverizing effect.

[0004] The above technical solution has the following technical problems: when the PET film production crushing device is in use, the unqualified raw materials have a large weight when loaded into the collection box, and the operator needs to carry them to the top of the feed hopper and pour them in. The transportation process is time-consuming and labor-intensive, thereby affecting the efficiency of the recycling crushing of the unqualified raw materials. Utility Model Content

[0005] The utility model provides a PET film production pulverizing device, aiming to solve the problem that when the PET film production pulverizing device is in use, unqualified raw materials have a large dead weight when loaded into a collection box, and an operator needs to carry them to the top of a feed hopper and pour them in, and the carrying process is time-consuming and laborious, thereby affecting the recycling pulverizing efficiency of the unqualified raw materials.

[0006] The utility model is achieved as follows: a PET film production crushing device comprises a crushing box, a feeding hopper is inserted into the top of the crushing box, a base is fixedly arranged at the bottom end of the crushing box, two cylinders are symmetrically fixedly arranged on the surface of the base close to the crushing box, a support frame is fixedly arranged at the output end of the top of the cylinder one, a collecting box is rotatably connected to the inside of the support frame, blocks are symmetrically fixedly arranged on the two side walls of the collecting box, holes are opened on the side walls of the support frame close to the two blocks for the blocks to be inserted, a connecting seat is fixedly arranged on the inner top end of the support frame, a rotating shaft is rotatably connected to the top of the connecting seat one, a cylinder is fixedly arranged on the top end of the rotating shaft one, a connecting seat is fixedly arranged on the output end of the cylinder two, a rotating shaft is rotatably connected to the top of the connecting seat two, and the rotating shaft is fixedly arranged on the bottom end of the collecting box, and waste grooves are symmetrically opened on the two side walls of the crushing box close to the collecting box.

[0007] Preferably, two servo motors 1 are symmetrically fixed on the side wall of the crushing box, and the output ends of the two servo motors 1 penetrate the side wall of the crushing box and are fixed with crushing rollers. The two crushing rollers are meshed together to achieve crushing of the raw materials.

[0008] Preferably, a screen is fixedly provided on the inner side wall of the crushing box near the waste trough, and a discharge trough is opened on the side wall of the crushing box near the bottom end of the screen to facilitate filtering and discharging of materials.

[0009] Preferably, a servo motor 2 is fixedly provided on the inner wall of the crushing box near the top of the waste trough, and a screw rod is fixedly provided at the output end of the servo motor 2. The outer surface of the screw rod is movably connected with a push plate through a silky slide. The push plate is conically abutted against the top of the screen, thereby improving the convenience of discharging unqualified raw materials.

[0010] Preferably, two groups of limit frames are fixedly provided on the side walls of the crushing box close to the two support frames, and the two groups of limit frames are L-shaped and symmetrically distributed.

[0011] Preferably, round rods are symmetrically fixed on the side walls of the two support frames, and the round rods and the support frames are made of cast iron and fixedly connected to form an integrated structure. The external dimensions of the round rods are compatible with the internal dimensions of the limit frames, thereby improving the stability of the vertical movement of the support frames.

[0012] Preferably, both waste troughs are slidably connected with box doors, and the outer dimensions of the box doors are matched with the inner dimensions of the waste troughs, thereby improving the convenience of closing the waste troughs.

[0013] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0014] Firstly, a support frame, cylinder one, a collecting box, a connecting seat one, a rotating shaft one, cylinder two, a connecting seat two, and a rotating shaft two are arranged, both of which are plastic collection boxes for receiving unqualified materials dropped from the waste trough. By starting the collecting box, the support frame and cylinder one can be pushed to the top, and then starting cylinder two can push the collecting box to rotate around the block, so that the raw materials are poured into the internal circulation of the feed hopper for crushing, thereby improving the efficiency of the raw material circulation crushing; secondly, a limit frame and a round rod are arranged, and the two sets of limit frames are L-shaped and adapted to the external dimensions of the round rod, which can limit the lateral displacement of the support frame, thereby improving the stability of the vertical movement of the support frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view three-dimensional structural schematic diagram of the utility model.

[0016] Figure 2 For the utility model Figure 1 Enlarged structural diagram at A in the middle.

[0017] Figure 3 It is a front view planar structure schematic diagram of the utility model.

[0018] Figure 4 It is a schematic diagram of the front cross-sectional structure of the crushing box of the utility model.

[0019] Figure 5 It is a schematic diagram of the front three-dimensional structure of the support frame of the utility model.

[0020] The accompanying drawings are marked as follows: 1. crushing box; 2. base; 3. support frame; 4. cylinder one; 5. collection box; 6. waste trough; 7. box door; 8. limit frame; 9. feed hopper; 10. servo motor one; 11. discharge trough; 12. connecting seat one; 13. rotating shaft one; 14. cylinder two; 15. connecting seat two; 16. rotating shaft two; 17. screen; 18. push plate; 19. servo motor two; 20. screw; 21. crushing roller; 22. hole groove; 23. round rod; 24. block. DETAILED DESCRIPTION

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0022] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0023] See also Figure 1-5 The embodiment of the utility model is as follows: a PET film production crushing device includes a crushing box 1, a feed hopper 9 is plugged into the top of the crushing box 1, the feed hopper 9 is connected to the inside of the crushing box 1 for feeding, two servo motors 10 are symmetrically fixed on the side wall of the crushing box 1 by bolts, the output ends of the two servo motors 10 are both penetrated through the side wall of the crushing box 1 and fixed with a crushing roller 21 through a coupling, the other end of the crushing roller 21 is rotatably connected to the side wall of the crushing box 1, the two crushing rollers 21 are meshed together, and start at the same time. The servo motor 10 can drive the crushing roller 21 to rotate, thereby crushing the raw materials. A screen 17 is fixedly arranged on the inner wall of the crushing box 1 near the waste trough 6. A discharge trough 11 is opened on the side wall of the crushing box 1 near the bottom of the screen 17. The crushed raw materials pass through the screen 17 under the action of their own weight and are discharged from the discharge trough 11, thereby filtering and discharging the crushed raw materials. A base 2 is fixedly arranged at the bottom of the crushing box 1 by welding. Two cylinders 4 are symmetrically fixedly arranged on the surface of the base 2 near the crushing box 1 by bolts. The output at the top of the cylinder 4 The ends are fixed with a support frame 3 by welding, and the inner rotation of the support frame 3 is connected with a collection box 5. By starting the collection box 5, the support frame 3 and the cylinder 14 can be pushed to the top. The two side walls of the collection box 5 are symmetrically fixed with blocks 24. The side walls of the support frame 3 close to the two blocks 24 are provided with holes 22 for the blocks 24 to be plugged in. The inner top of the support frame 3 is fixed with a connecting seat 12. The top of the connecting seat 12 is rotatably connected with a rotating shaft 13 through a pin. The top of the rotating shaft 13 is fixed with a cylinder 2 14. The cylinder 2 The output ends of 14 are fixedly provided with connecting seats 2 15, and the tops of the connecting seats 2 15 are rotatably connected with rotating shafts 2 16 through latches. The rotating shafts 2 16 are fixedly arranged at the bottom of the collecting box 5. Waste troughs 6 are symmetrically provided on the two side walls of the crushing box 1 close to the collecting box 5. The collecting box 5 is located just below the waste trough 6 to receive the unqualified waste discharged from the waste trough 6. Starting the cylinder 2 14 can push the collecting box 5 to rotate around the block 24, so that the raw materials are poured into the internal circulation of the feed hopper 9 for crushing, thereby improving the efficiency of the raw material circulation crushing.

[0024] A servo motor 19 is fixedly provided on the inner wall of the crushing box 1 near the top of the waste trough 6, and the inner parts of the two waste troughs 6 are slidably connected with box doors 7. The outer dimensions of the box doors 7 are matched with the inner dimensions of the waste troughs 6, which improves the convenience of closing the waste troughs 6. Closing the waste troughs 6 by the box doors 7 can prevent the crushed raw materials from being exposed. A screw rod 20 is fixedly provided at the output end of the servo motor 19, and the outer surface of the screw rod 20 is movably connected with a push plate 18 through a silky slide. The push plate 18 is conically abutted against the top of the screen 17, which improves the convenience of discharging unqualified raw materials. Starting the servo motor 19 can drive the screw rod 20 to rotate, thereby driving the push plate 18 to move back and forth horizontally, so as to facilitate pushing the unqualified waste out of the waste trough 6.

[0025] Two sets of limit frames 8 are fixedly provided on the side walls of the crushing box 1 near the two support frames 3 by welding. The two sets of limit frames 8 are L-shaped and symmetrically distributed. Round rods 23 are symmetrically fixedly provided on the side walls of the two support frames 3. The round rods 23 and the support frames 3 are both made of cast iron and fixedly connected to form an integral structure. The external dimensions of the round rods 23 are compatible with the internal dimensions of the limit frames 8, thereby improving the stability of the vertical movement of the support frames 3.

[0026] Working principle: When the PET film production crushing device is in use, the operator first connects an external power supply, pours the raw material from the feed hopper 9 into the crushing box 1, and starts the servo motor 10 to drive the crushing roller 21 to rotate, thereby realizing the crushing of the raw material. The crushed raw material falls onto the surface of the screen 17 to realize filtering, and then the discharge trough 11 discharges and completes the collection. When the unqualified waste material at the gathering angle at the top of the screen 17 blocks the screen 17, the operator draws out the box door 7 to open the waste trough 6, and then starts the servo motor 2 19 to drive the screw 20 to rotate, thereby driving the push plate 18 to move horizontally back and forth, so as to facilitate the unqualified waste material to be pushed out of the waste trough 6 into the collection box 5 to realize waste collection. By starting the collection box 5, the support frame 3 and the cylinder 1 4 can be pushed to the top, and then starting the cylinder 2 14 can push the collection box 5 to rotate around the block 24, thereby pouring the raw material into the internal circulation crushing of the feed hopper 9, thereby improving the efficiency of the raw material circulation crushing.

[0027] Secondly, the limit frames 8 are all L-shaped and symmetrically distributed, and round rods 23 are symmetrically fixed on the side walls of the two support frames 3. The round rods 23 and the support frames 3 are both made of cast iron and fixedly connected to form an integrated structure. The external dimensions of the round rods 23 are compatible with the internal dimensions of the limit frames 8, thereby improving the stability of the vertical movement of the support frames 3.

[0028] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0029] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0030] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0031] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A PET film production crushing device, characterized in that: The invention comprises a crushing box (1): a feeding hopper (9) is inserted at the top of the crushing box (1), a base (2) is fixedly arranged at the bottom of the crushing box (1), two cylinders (4) are symmetrically fixedly arranged on the surface of the base (2) close to the crushing box (1), a support frame (3) is fixedly arranged at the output end of the top of the cylinder (4), a collection box (5) is rotatably connected inside the support frame (3), card blocks (24) are symmetrically fixedly arranged on the two side walls of the collection box (5), and holes (22) are opened on the side walls of the support frame (3) close to the two card blocks (24) for card slots The support frame (3) is connected with a block (24), the inner top end of each support frame (3) is fixedly provided with a connection seat (12), the top end of each connection seat (12) is rotatably connected with a rotating shaft (13), the top end of each rotating shaft (13) is fixedly provided with a cylinder (14), the output end of each cylinder (14) is fixedly provided with a connection seat (15), the top end of each connection seat (15) is rotatably connected with a rotating shaft (16), the rotating shaft (16) is fixedly provided at the bottom end of the collecting box (5), and waste troughs (6) are symmetrically provided on two side walls of the crushing box (1) close to the collecting box (5).

2. A PET film production crushing device according to claim 1, characterized in that: Two servo motors (10) are symmetrically fixed on the side wall of the crushing box (1), and the output ends of the two servo motors (10) penetrate the side wall of the crushing box (1) and are fixed with crushing rollers (21), and the two crushing rollers (21) are meshed together.

3. A PET film production crushing device according to claim 2, characterized in that: A screen (17) is fixedly arranged on the inner side wall of the crushing box (1) close to the waste trough (6), and a discharge trough (11) is opened on the side wall of the crushing box (1) close to the bottom end of the screen (17).

4. A PET film production crushing device according to claim 3, characterized in that: A servo motor 2 (19) is fixedly provided on the inner wall of the crushing box (1) above the waste trough (6), and a screw rod (20) is fixedly provided at the output end of the servo motor 2 (19). The outer surface of the screw rod (20) is movably connected to a push plate (18) via a silk slide, and the push plate (18) is in a conical shape and abuts against the top end of the screen (17).

5. A PET film production crushing device according to claim 4, characterized in that: Two groups of limiting frames (8) are fixedly arranged on the side walls of the crushing box (1) close to the two supporting frames (3), and the two groups of limiting frames (8) are both L-shaped and symmetrically distributed.

6. A PET film production crushing device according to claim 1, characterized in that: Round rods (23) are symmetrically fixed on the side walls of the two support frames (3); the round rods (23) and the support frames (3) are both made of cast iron and are fixedly connected to form an integrated structure; the external dimensions of the round rods (23) are compatible with the internal dimensions of the limiting frame (8).

7. A PET film production crushing device according to claim 1, characterized in that: The two waste troughs (6) are both slidably connected with a box door (7), and the outer dimensions of the box door (7) are adapted to the inner dimensions of the waste trough (6).

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