Polyethylene terephthalate (PET) plastic sheet trimming device

Abstract

The utility model relates to the field of PET (polyethylene terephthalate) plastic sheet processing, and particularly discloses a PET plastic sheet trimming device which comprises a base, a fixing plate and a telescopic piece, the fixing plate and the telescopic piece are arranged on the upper end face of the base, a conveying mechanism for conveying materials is arranged on the base and comprises a first mounting plate, a discharging roll is rotatably mounted on the first mounting plate, and the discharging roll is arranged on the fixing plate. A pressing and conveying assembly and a recycling assembly are arranged on one side of the discharging roll, and an edge cutting mechanism which conducts reciprocating motion to achieve the edge cutting action on the plastic sheets is arranged at the position, located between the pressing and conveying assembly and the recycling assembly, of the upper end of the base. The telescopic rod is driven to drive the pressing assembly to contract at equal intervals, so that plastic sheets with different widths are pressed, the plastic sheets are pressed at multiple points through the pressing assembly, the plastic sheets are evenly stressed during edge cutting, and the problems that during edge cutting, the plastic sheets shake and are unstable, and unevenness, burrs and tearing occur are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of PET plastic sheet processing, in particular to a PET plastic sheet cutting device. BACKGROUND

[0002] PET plastic sheet refers to the sheet or sheet product made of polyethylene terephthalate, PET plastic is a common thermoplastic, which has good transparency, mechanical strength and chemical corrosion resistance, but the length of the PET plastic sheet is too long, and the edge burr, burr or uneven part needs to be trimmed, so a device for cutting and polishing the plastic sheet is needed.

[0003] When the PET plastic sheet cutting device cuts the plastic sheet, it needs to press the plastic sheet and then cut it with the cutting wheel, but the pressing mechanism of the existing cutting device presses the plastic sheet by setting two telescopic pressing blocks, which often fails to achieve the pressing effect, resulting in unstable plastic sheet during cutting, unevenness, burr, tearing and other problems, which need to be improved. UTILITY MODEL CONTENT

[0004] The utility model discloses a PET plastic sheet cutting device.

[0005] The utility model discloses the following technical scheme to realize the above-mentioned purpose:

[0006] A PET plastic sheet cutting device, comprising a base, a fixed plate, a telescopic piece, the fixed plate and the telescopic piece are arranged on the upper end face of the base, a conveying mechanism for conveying materials is arranged on the base, the conveying mechanism comprises a first mounting plate, a feeding roll is rotatably installed on the first mounting plate, a pressure feeding assembly and a recycling assembly are arranged on one side of the feeding roll, a cutting mechanism for reciprocating motion to realize cutting action on the plastic sheet is arranged on the upper end of the base between the pressure feeding assembly and the recycling assembly, the cutting mechanism comprises a driving assembly and a screw assembly, a fixing mechanism for pressing and fixing the cutting part of the plastic sheet is arranged above the cutting mechanism, the fixing mechanism comprises a top plate fixedly installed on the telescopic piece, a stabilizing plate is arranged below the top plate, a second sliding rod is fixedly installed between the stabilizing plates, a telescopic rod is fixedly installed on one side of the stabilizing plate, and a pressing assembly for equidistant contraction of the plastic sheet of different widths is arranged on the second sliding rod.

[0007] Further provided: the pressure feeding assembly comprises a first support frame, a first motor is fixedly installed on one side end face of the first support frame, a driving roller fixedly connected with the output end of the first motor is rotatably arranged on the first support frame, a plurality of telescopic cylinders are installed on the upper end face of the first support frame, a connecting frame is fixedly installed on the telescopic end of the telescopic cylinder, and a driven roller is rotatably arranged on the connecting frame.

[0008] Further configuration: The recycling component includes a second support frame, with second mounting plates fixedly installed on the front and rear sides of the second support frame. A second motor is installed on the second mounting plates, and a rubber roller fixedly installed to the output end of the second motor is rotatably mounted between the second mounting plates.

[0009] Further configuration: The clamping assembly includes a fixing component fixedly installed in the middle position of the second slide rod. The second slide rod is provided with multiple sliding components. The upper ends of the sliding components at both ends of the second slide rod are rotatably mounted with a first connecting rod and a second connecting rod. The upper ends of the remaining sliding components and the fixing component are rotatably mounted with a third connecting rod and a fourth connecting rod. The third connecting rod and the fourth connecting rod are arranged crosswise. The first connecting rod and the second connecting rod are rotatably connected to the third connecting rod and the fourth connecting rod. The third connecting rod and the fourth connecting rod are rotatably connected to each other. The sliding component at one end of the second slide rod is fixedly connected to the telescopic end of the telescopic rod. Multiple fixing posts are fixedly installed on the fixing component and the sliding component. The lower end of the fixing post is provided with a friction seat made of rubber.

[0010] Further configuration: The screw assembly includes a first slide rod and a screw rod installed between the fixed plates. The screw rod is rotatably connected to the fixed plates. Sliding blocks are provided on the first slide rod and the screw rod. The sliding blocks are threadedly connected to the screw rod. A drive motor that is fixedly connected to the screw rod is fixedly installed on one side of the fixed plate.

[0011] Further configuration: The drive assembly includes a placement plate fixedly mounted on the upper surface of the sliding block, a drive body fixedly mounted on the upper end of the placement plate, and a cutting wheel fixedly mounted on the output end of the drive body.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: by driving the telescopic rod to drive the pressing component to retract at equal intervals, the plastic sheets of different widths can be pressed. By pressing the plastic sheet at multiple points by the pressing component, the plastic sheet can be evenly stressed when cutting the edge, which solves the problems of unstable shaking of the plastic sheet during cutting, resulting in unevenness, burrs, and tearing. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is an isometric view of a PET plastic sheet edge-cutting device according to the present invention;

[0015] Figure 2 This is a structural diagram of the pressing and feeding component of the PET plastic sheet edge-cutting device described in this utility model;

[0016] Figure 3 This is a structural diagram of the fixing mechanism of the PET plastic sheet edge-cutting device described in this utility model;

[0017] Figure 4 This is a structural diagram of the edge-cutting mechanism of the PET plastic sheet edge-cutting device described in this utility model;

[0018] Figure 5 This is a partial view of a PET plastic sheet trimming device according to the present invention.

[0019] The annotations in the attached figures are explained as follows:

[0020] 1. Base; 2. Fixing plate; 3. Telescopic component; 11. First mounting plate; 12. Feed roll; 13. First support frame; 14. First motor; 15. Drive roller; 16. Telescopic cylinder; 17. Connecting frame; 18. Driven roller; 19. Second support frame; 101. Second mounting plate; 102. Second motor; 103. Rubber roller; 201. First slide bar; 202. Screw; 21. Drive motor; 22. Sliding block; 23. Placement plate; 24. Drive body; 25. Edge cutting wheel; 31. Top plate; 32. Stabilizing plate; 33. Second slide bar; 34. Fixing component; 35. Sliding component; 36. First connecting rod; 37. Second connecting rod; 38. Third connecting rod; 39. Fourth connecting rod; 301. Telescopic rod; 302. Fixing column. Detailed Implementation

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The present invention will be further described below with reference to the accompanying drawings:

[0024] like Figures 1-5 As shown, a PET plastic sheet trimming device includes a base 1, a fixing plate 2, and a telescopic component 3. The fixing plate 2 and the telescopic component 3 are disposed on the upper surface of the base 1. The base 1 is provided with a material conveying mechanism, which includes a first mounting plate 11. A feeding roll 12 is rotatably mounted on the first mounting plate 11. A pressing component and a recycling component are provided on one side of the feeding roll 12. A trimming mechanism is provided at the upper end of the base 1 and between the pressing component and the recycling component. The trimming mechanism reciprocates to trim the plastic sheet. The trimming mechanism includes a drive component and a screw component. Above the trimming mechanism is a fixing mechanism for pressing and fixing the cut part of the plastic sheet. The fixing mechanism includes a top plate 31 fixedly mounted on the telescopic component 3. A stabilizing plate 32 is provided below the top plate 31. A second sliding rod 33 is fixedly mounted between the stabilizing plates 32. A telescopic rod 301 is fixedly mounted on one side of the stabilizing plate 32. A pressing component is provided on the second sliding rod 33 for equidistant contraction of plastic sheets of different widths.

[0025] In this embodiment: the pressing assembly includes a first support frame 13, a first motor 14 is fixedly mounted on one side of the first support frame 13, an active roller 15 is rotatably mounted on the first support frame 13 and fixedly connected to the output end of the first motor 14, a plurality of telescopic cylinders 16 are mounted on the upper end of the first support frame 13, a connecting frame 17 is fixedly mounted on the telescopic end of the telescopic cylinders 16, and a driven roller 18 is rotatably mounted on the connecting frame 17. The recovery assembly includes a second support frame 19, and a second mounting plate 1 is fixedly mounted on the front and rear sides of the second support frame 19. 01. A second motor 102 is provided on the second mounting plate 101. A rubber roller 103 is rotatably mounted on the second mounting plate 101 and fixedly mounted to the output end of the second motor 102. When using the device, the first motor 14 rotates to drive the active roller 15 to rotate. The plastic sheet on the feeding roll 12 is carried to the gap between the end face of the second support frame 19 and the rubber roller 103 by the friction between the active roller 15 and the driven roller 18. By starting the second motor 102, the rubber roller 103 drives the plastic sheet to move to the position where the edge needs to be cut.

[0026] In this embodiment: the clamping assembly includes a fixing member 34 fixedly installed at the middle position of the second slide rod 33. The second slide rod 33 is provided with multiple sliding members 35. A first connecting rod 36 and a second connecting rod 37 are rotatably mounted on the upper ends of the sliding members 35 at both ends of the second slide rod 33. A third connecting rod 38 and a fourth connecting rod 39 are rotatably mounted on the upper ends of the remaining sliding members 35 and the fixing member 34. The third connecting rods 38 and 39 are arranged crosswise. The first connecting rod 36 and the second connecting rod 37 are rotatably connected to the third connecting rod 38 and the fourth connecting rod 39. The third connecting rods 38 and 39 are rotatably connected to each other. The sliding member 35 at one end of the sliding rod 33 is fixedly connected to the telescopic end of the telescopic rod 301. Multiple fixing posts 302 are fixedly installed on the fixing member 34 and the sliding member 35. The lower end of the fixing post 302 is provided with a friction seat made of rubber. When the telescopic rod 301 moves, it drives the sliding member 35 fixed to it to move, so that the sliding members 35 on both sides of the fixing member 34 can move at equal distances through the first connecting rod 36, the second connecting rod 37, the third connecting rod 38, and the fourth connecting rod 39, thereby realizing the adjustment of different widths. After the width is determined, the telescopic member 301 moves to drive the fixing post 302 to evenly press the plastic sheet.

[0027] In this embodiment: the screw assembly includes a first slide rod 201 and a screw 202 installed between the fixed plates 2. The screw 202 is rotatably connected to the fixed plate 2. A sliding block 22 is provided on the first slide rod 201 and the screw 202. The sliding block 22 is threadedly connected to the screw 202. A drive motor 21 fixedly connected to the screw 202 is fixedly installed on one side of the fixed plate 2. The drive assembly includes a placement plate 23 fixedly installed on the upper surface of the sliding block 22. A drive body 24 is fixedly installed on the upper end of the placement plate 23. A cutting wheel 25 is fixedly installed on the output end of the drive body 24. The drive body 24 causes the cutting wheel 25 to rotate, and then the drive motor 21 moves to drive the screw 202 to rotate, causing the sliding block 22 to move, thereby realizing the reciprocating cutting of the plastic sheet by the cutting wheel 25.

[0028] The working principle and usage process of this utility model are as follows: When using the device, the first motor 14 rotates, driving the active roller 15 to rotate. The plastic sheet on the unloading roll 12 is brought to the gap between the end face of the second support frame 19 and the rubber roller 103 by the friction between the active roller 15 and the driven roller 18. By starting the second motor 102, the rubber roller 103 moves the plastic sheet to the position where it needs to be trimmed. Then, the telescopic rod 301 moves, driving the sliding member 35 fixed to it to move, so that the sliding members 35 on both sides of the fixed member 34 pass through the first Links 36, 37, 38, and 39 move in relation to each other to achieve equidistant movement, thereby enabling adjustment of different widths. Once the width is determined, the telescopic component 3 moves to drive the fixed column 302 to uniformly press the plastic sheet. After pressing, the drive body 24 is activated to rotate the cutting wheel 25. Then, the drive motor 21 moves to drive the screw 202 to rotate, causing the sliding block 22 to move. This enables the cutting wheel 25 to reciprocate to cut the plastic sheet, solving the problems of unstable shaking of the plastic sheet during cutting, resulting in unevenness, burrs, and tearing.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A PET plastic sheet trimming device, comprising a base (1), a fixing plate (2), and a telescopic component (3), wherein the fixing plate (2) and the telescopic component (3) are disposed on the upper surface of the base (1), characterized in that: The base (1) is provided with a material conveying mechanism. The conveying mechanism includes a first mounting plate (11). A feeding roll (12) is rotatably mounted on the first mounting plate (11). A pressing component and a recycling component are provided on one side of the feeding roll (12). A cutting mechanism is provided at the upper end of the base (1) and between the pressing component and the recycling component. The cutting mechanism is reciprocating to cut the plastic sheet. The cutting mechanism includes a driving component and a screw component. A fixing mechanism is provided above the cutting mechanism to press and fix the cut part of the plastic sheet. The fixing mechanism includes a top plate (31) fixedly mounted on the telescopic component (3). A stabilizing plate (32) is provided below the top plate (31). A second sliding rod (33) is fixedly mounted between the stabilizing plates (32). A telescopic rod (301) is fixedly mounted on one side of the stabilizing plate (32). A pressing component is provided on the second sliding rod (33) to equidistantly contract plastic sheets of different widths.

2. The PET plastic sheet edge-cutting device according to claim 1, characterized in that: The pressing assembly includes a first support frame (13), a first motor (14) is fixedly installed on one side end face of the first support frame (13), an active roller (15) fixedly connected to the output end of the first motor (14) is rotatably arranged on the first support frame (13), a plurality of telescopic cylinders (16) are installed on the upper end face of the first support frame (13), a connecting frame (17) is fixedly installed on the telescopic end of the telescopic cylinder (16), and a driven roller (18) is rotatably arranged on the connecting frame (17).

3. The PET plastic sheet edge-cutting device according to claim 2, characterized in that: The recycling assembly includes a second support frame (19), on which a second mounting plate (101) is fixedly installed on the front and rear sides. A second motor (102) is provided on the second mounting plate (101), and a rubber roller (103) fixedly installed at the output end of the second motor (102) is rotatably mounted between the second mounting plates (101).

4. The PET plastic sheet edge-cutting device according to claim 1, characterized in that: The clamping assembly includes a fixing member (34) fixedly installed at the middle position of the second slide rod (33). The second slide rod (33) has multiple sliding members (35). The upper ends of the sliding members (35) at both ends of the second slide rod (33) are rotatably mounted with a first connecting rod (36) and a second connecting rod (37). The upper ends of the remaining sliding members (35) and the fixing member (34) are rotatably mounted with a third connecting rod (38) and a fourth connecting rod (39). The third connecting rod (38) and the fourth connecting rod (39) intersect... The fork configuration is such that the first link (36), the second link (37), the third link (38), and the fourth link (39) are rotatably connected, the third link (38) and the fourth link (39) are rotatably connected to each other, the sliding member (35) at one end of the second slide rod (33) is fixedly connected to the telescopic end of the telescopic rod (301), and multiple fixing posts (302) are fixedly installed on the fixing member (34) and the sliding member (35), and the lower end of the fixing post (302) is provided with a friction seat made of rubber.

5. The PET plastic sheet edge-cutting device according to claim 1, characterized in that: The screw assembly includes a first slide rod (201) and a screw (202) installed between the fixed plates (2). The screw (202) is rotatably connected to the fixed plate (2). Sliding blocks (22) are provided on the first slide rod (201) and the screw (202). The sliding blocks (22) are threadedly connected to the screw (202). A drive motor (21) fixedly connected to the screw (202) is fixedly installed on one side of the fixed plate (2).

6. The PET plastic sheet edge-cutting device according to claim 5, characterized in that: The drive assembly includes a placement plate (23) fixedly installed on the upper surface of the sliding block (22), a drive body (24) fixedly installed on the upper end of the placement plate (23), and a cutting wheel (25) fixedly installed on the output end of the drive body (24).

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