PET (Polyethylene Terephthalate) production device

Abstract

The utility model relates to the technical field of PET (polyethylene terephthalate) production devices, in particular to a PET production device which comprises a rack, a crushing device is arranged in the rack and used for crushing PET materials, a screening box is fixedly connected to the bottom of the rack and located at a discharge port, and a pair of screening plates are arranged in the screening box. Wherein an adjusting part and a locking part used for fixing the adjusting part are arranged on the side face of the screening box, the pair of screening plates are arranged in a staggered mode through the adjusting part and used for screening broken PET materials, and the PET materials can be screened through the screening plates; the screening is beneficial to guaranteeing the consistency of raw materials and is more suitable for different production processes and products, in addition, the position of one screening plate can be adjusted through the adjusting piece, the pair of screening plates are arranged in a staggered mode, then the size of screening holes is adjusted according to the staggered mode, and the adjusting piece can be rapidly fixed through the locking piece.

Description

Technical Field

[0001] The utility model relates to the technical field of PET production, in particular to a PET production device. Background Art

[0002] PET, namely polyethylene terephthalate, is synthesized by transesterification of dimethyl terephthalate and ethylene glycol or esterification of terephthalic acid and ethylene glycol to form bis(2-hydroxyethyl) terephthalate, and then polycondensed. It is a widely used synthetic resin with various properties and uses.

[0003] In the production operation of PET, by crushing PET fragments to make them have a larger surface area, this helps to improve the heat transfer efficiency during the melting process, making the PET more uniform and faster during melting. For example, the Chinese patent publication number "CN208543683U" in the prior art discloses a crusher for a PET plastic sheet production line, including a main body, a blower and a storage bin. The upper outer surface of the main body is fixedly installed with a crushing bin, and the upper outer surface of the crushing bin is fixedly installed with a feeding pipe. One side outer surface of the main body is fixedly installed with an electric box, and the other side outer surface of the main body is fixedly installed with a transmission box. A crushing knife assembly is installed inside the crushing bin, and an activated carbon plate is fixedly installed on the upper outer surface of the feeding pipe. The crusher for the PET plastic sheet production line of the present utility model can utilize wind power to clean the PET plastic debris attached inside the crushing bin while accelerating the heat dissipation rate of the crusher, and can absorb and eliminate the odor generated when the crusher crushes PET plastic sheets, and can also facilitate the staff to firmly place the storage bin under the discharge pipe of the crusher, bringing better application prospects.

[0004] In specific operations, through the screening process, it can be ensured that the size of the PET fragments meets specific particle size requirements. PET particles of different particle sizes are suitable for different production processes and products. Screening helps to ensure the consistency of raw materials, while similar processing devices cannot screen the crushed PET materials, affecting production efficiency. Summary of the Utility Model

[0005] The purpose of the present utility model is to solve the above-mentioned drawbacks in the prior art that the crushed PET materials cannot be screened, and to propose a PET production device.

[0006] In order to achieve the above purpose, the present utility model adopts the following technical solutions:

[0007] Design a PET production device, including a frame. A crushing device is arranged inside the frame, and the crushing device is used to crush PET materials. The bottom of the frame at the discharge port is fixedly connected with a screening box, and a pair of sieve plates are arranged inside the screening box;

[0008] Among them, the side of the screening box is provided with an adjusting piece and a locking piece for fixing the adjusting piece, and a pair of the screening plates are staggered by the adjusting piece to screen the crushed PET material.

[0009] Furthermore, a pair of extensions are arranged in parallel on the inner wall of the screening box, and a receiving groove is formed between the pair of extensions, wherein an opening corresponding to the receiving groove is arranged on the side of the screening box, and one of the screen plates is arranged in the opening, and one end of the screen plate is slidably connected to the receiving groove through a plurality of compression springs, and the other end is extended to the periphery of the screening box.

[0010] Furthermore, another sieve plate is fixedly connected in the screening box, and one end of the sieve plate is provided with an avoidance groove for avoiding the extension portion, and the pair of sieve plates have the same structure and are closely arranged.

[0011] Furthermore, the adjusting member is in a rod-shaped structure, a bracket is fixedly mounted on the side of the screening box, the adjusting member is slidably connected to the bracket, and a guiding slope is provided on the bottom side close to the screen plate, and the guiding slope contacts and slides with the extended part of the screen plate.

[0012] Furthermore, the locking member includes a mounting portion, which is sleeved on the periphery of the adjusting member and fixed on the bracket, wherein an unlocking member is eccentrically rotated on the side of the mounting portion away from the adjusting member, and a tightening member is slidably connected between the unlocking member and the unlocking member, and the unlocking member can contact and push the tightening member.

[0013] Furthermore, a slide groove is provided on a side of the adjusting member facing away from the guiding inclined surface, and a side surface of the abutting member is matched with the slide groove.

[0014] The utility model proposes a PET production device, which has the beneficial effects that: the utility model can effectively crush the PET material through the crushing device, and then can screen the PET material through the screen plate, the screening helps to ensure the consistency of the raw materials and is more suitable for different production processes and products, in addition, the position of one of the screen plates can be adjusted through the adjusting piece, so that a pair of screen plates are staggered, and then the size of the screen hole is adjusted according to the reason for the staggered arrangement to meet different processing needs, and the adjusting piece can be quickly fixed through the locking piece to prevent the screen plate from moving freely. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a cross-sectional view of the filter box of the utility model;

[0017] Figure 3For Figure 2 Schematic diagram of the enlarged structure of area A of

[0018] Figure 4 Schematic diagram of the structure of the adjusting part and the locking part of the present utility model;

[0019] Figure 5 For Figure 4 Schematic diagram of the enlarged structure of area B of

[0020] Figure 6 Cross-sectional view of the locking part of the present utility model.

[0021] In the figure: 1, frame; 2, screening box; 21, extension part; 22, receiving groove; 23, compression spring; 24, bracket; 3, sieve plate; 31, avoidance groove; 4, adjusting part; 41, guiding inclined surface; 42, sliding groove; 5, locking part; 51, installation part; 52, unlocking part; 53, pressing part. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0023] Referring to Figures 1-6 , a PET production device includes a frame 1, a crushing device is arranged inside the frame 1, the crushing device is used for crushing PET materials, the bottom of the frame 1 is fixedly connected with a screening box 2 at the discharge port, and a pair of sieve plates 3 are arranged in the screening box 2;

[0024] Among them, an adjusting part 4 is arranged on the side of the screening box 2, and a locking part 5 for fixing the adjusting part 4, and the pair of sieve plates 3 are arranged in a staggered manner through the adjusting part 4 for screening the crushed PET materials.

[0025] Furthermore, a pair of extension parts 21 are arranged in parallel on the inner wall of the screening box 2, a receiving groove 22 is formed between the pair of extension parts 21, wherein an opening corresponding to the receiving groove 22 is arranged on the side of the screening box 2, and one of the sieve plates 3 is arranged in the opening, one end of the sieve plate 3 is slidably connected with the receiving groove 22 through a plurality of compression springs 23, and the other end extends to the outside of the screening box 2.

[0026] Still further, the other sieve plate 3 is fixedly connected in the screening box 2, and an avoidance groove 31 for avoiding the extension part 21 is arranged at one end thereof, and the pair of sieve plates 3 have the same structure and are arranged in a fitting manner.

[0027] It should be added that the side of the screening box 2 is connected to an external pneumatic device through a pipe, and the larger PET material on the sieve plate 3 is sucked out by the pneumatic device, wherein an avoidance groove 31 is provided to ensure that the upper sieve plate 3 fits the lower sieve plate 3, so as to avoid a gap between a pair of sieve plates 3 to cause material jam;

[0028] In addition, the lower sieve plate 3 is staggered with the upper sieve plate 3 through the adjusting member 4, and the sieve holes on both sides are blocked from each other to form a discharge port with adjustable diameter, so as to screen out PET materials of different diameters. Of course, a vibration motor can also be set on the side of the screening box 2;

[0029] After a pair of sieve plates 3 are staggered, the material discharge port is in a step shape, and the PET material is prevented from being stuck on the step portion by a vibration motor.

[0030] In more detail, the adjusting member 4 is a rod-shaped structure, a bracket 24 is fixedly installed on the side of the screening box 2, the adjusting member 4 is slidably connected to the bracket 24, and a guiding slope 41 is provided on the side of the bottom close to the screen plate 3, and the guiding slope 41 contacts and slides with the extended part of the screen plate 3.

[0031] Specifically, the lower sieve plate 3 moves outward under the elastic support of the compression spring 23 and contacts the guide slope 41, and then the adjustment member 4 is moved downward to contact the guide slope 41 and push the sieve plate 3 inward, thereby achieving the purpose of staggered arrangement of a pair of sieve plates 3.

[0032] In general, the locking member 5 includes a mounting portion 51, which is sleeved on the periphery of the adjusting member 4 and fixed on the bracket 24, wherein an unlocking member 52 is eccentrically rotated on the side of the mounting portion 51 away from the adjusting member 4, and a fastening member 53 is slidably connected between the unlocking member 52 and the unlocking member 52, and the unlocking member 52 can contact and push the fastening member 53.

[0033] Finally, a slide groove 42 is provided on the side of the adjusting member 4 facing away from the guiding inclined surface 41 , and the side surface of the abutting member 53 is matched with the slide groove 42 .

[0034] It is worth mentioning that the unlocking member 52 rotates eccentrically with the mounting portion 51, and after rotating to a certain position, the side away from the rotating shaft presses and pushes the pressing member 53, and the pressing member 53 is driven to press against the slide groove 42, and because the force is mutual, the unlocking member 52 is resisted to generate a certain pressing force to prevent free rotation;

[0035] Of course, in order to ensure that the unlocking member 52 can be firmly fixed, a through hole can be further provided on the top of the mounting portion 51 , the through hole being connected to the unlocking member 52 , and a plug rod being inserted into the through hole, and the mounting portion 51 and the unlocking member 52 are fixed by the plug rod.

[0036] Working mode; during operation, the PET material is crushed by a crushing device, and the crushed PET material enters the screening box 2 and is screened by a sieve plate 3. After screening, the PET material on the sieve plate 3 is sucked and discharged by a pneumatic device;

[0037] Moreover, the pair of sieve plates 3 can also be misaligned by an adjusting member 4 to filter PET materials with different diameters. The specific operation is as follows: after unlocking the adjusting member 4, move the adjusting member 4 downward or upward. The lower sieve plate 3 moves outward under the elastic support of the compression spring 23 and abuts against the guiding inclined surface 41, and then cooperates with the adjusting member 4 to adjust the lateral movement;

[0038] After the adjustment is completed, rotate the unlocking member 52 so that the side facing away from the rotation axis abuts against and pushes the abutting member 53. The abutting member 53 is driven to abut against the sliding groove 42, and then the unlocking member 52 is fixed by a plug rod.

[0039] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A PET production device, comprising a frame (1), characterized in that: A crushing device is arranged inside the frame (1), and the crushing device is used to crush the PET material. A screening box (2) is fixedly connected to the bottom of the frame (1) at the discharge port, and a pair of screening plates (3) are arranged inside the screening box (2); The side of the screening box (2) is provided with an adjusting member (4) and a locking member (5) for fixing the adjusting member (4); a pair of screening plates (3) are staggeredly arranged through the adjusting member (4) for screening the crushed PET material.

2. The PET production device according to claim 1, wherein: A pair of extensions (21) are arranged in parallel on the inner wall of the screening box (2), and a receiving groove (22) is formed between the pair of extensions (21), wherein an opening corresponding to the receiving groove (22) is arranged on the side of the screening box (2), and one of the screening plates (3) is arranged in the opening, and one end of the screening plate (3) is slidably connected to the receiving groove (22) through a plurality of compression springs (23), and the other end is extended to the periphery of the screening box (2).

3. The PET production device according to claim 2, characterized in that: The other sieve plate (3) is fixedly connected in the screening box (2), and one end of the sieve plate is provided with an avoidance groove (31) for avoiding the extension part (21). The pair of sieve plates (3) have the same structure and are closely arranged.

4. A PET production device according to claim 1, characterized in that: The adjusting member (4) is in the form of a rod. A bracket (24) is fixedly mounted on the side of the screening box (2). The adjusting member (4) is slidably connected to the bracket (24), and a guiding inclined surface (41) is provided on a side of the bottom of the adjusting member close to the screening plate (3). The guiding inclined surface (41) contacts and slides with an extended portion of the screening plate (3).

5. The PET production device according to claim 4, characterized in that: The locking member (5) comprises a mounting portion (51), the mounting portion (51) being sleeved on the periphery of the adjusting member (4) and fixed on the bracket (24), wherein an unlocking member (52) is eccentrically rotated on a side of the mounting portion (51) away from the adjusting member (4), and a pressing member (53) is slidably connected between the unlocking member (52) and the unlocking member (52), and the unlocking member (52) is capable of contacting and pushing the pressing member (53).

6. The PET production device according to claim 5, wherein: A sliding groove (42) is provided on the side of the adjusting member (4) facing away from the guiding inclined surface (41), and the side surface of the abutting member (53) is adapted to the sliding groove (42).

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