Ultralow-melting-point copolyester raw material grinding device

Abstract

The utility model belongs to the technical field of copolyester raw material grinding, and particularly relates to an ultralow-melting-point copolyester raw material grinding device which comprises a base, two fixing frames are fixedly connected to the base, a tank is fixedly connected to the two fixing frames in a matched mode, a material guiding pipe is rotationally installed at an upper end opening of the tank, an upper grinding disc is fixedly connected to the bottom end of the material guiding pipe, and a lower grinding disc is fixedly connected to the bottom end of the upper grinding disc. Two annular limiting plates are fixedly connected to the inner wall of the tank body, the bottom of the upper grinding disc is arranged in the two annular limiting plates, the outer surface of the material guiding pipe is sleeved with a gear ring, and a first motor is installed on the tank body; according to the copolyester grinding machine, in the grinding process, through the cooperation of the air inlet mechanism and the oscillation mechanism, it can be guaranteed that copolyester raw materials are evenly distributed between the grinding discs, so that it is guaranteed that each particle can be fully ground, the raw materials can be fully and evenly ground, and the grinding effect is improved; and the processing quality of subsequent products is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding of copolyester raw materials, and specifically relates to a grinding device for ultra-low melting point copolyester raw materials. Background Technique

[0002] Copolyester is a common synthetic polymer formed by the polymerization of two or more monomers. Copolyester raw materials are in a relatively large particle or lump form in the initial state. It is often difficult to achieve the ideal finished product quality when directly used for processing. Through grinding, the raw materials can be refined into smaller particles or powders, thus meeting the requirements for the particle size of the raw materials in the subsequent processing process.

[0003] The existing grinding device for copolyester raw materials mainly consists of a tank body, a feed hopper, an upper grinding disc, a lower grinding disc driving mechanism and a discharge pipe. When grinding copolyester raw materials, first, the copolyester raw materials are put into the grinding cavity in the tank body through the feed hopper. Then, under the action of the driving mechanism, the upper grinding disc rotates. With the cooperation of the lower grinding disc, the raw materials are extruded and crushed, so that the large-particle raw materials can be ground into fine particles or powders. The fine particles or powders are more easily processed by processing equipment, reducing the wear of the equipment and meeting the requirements for the particle size of the raw materials in the subsequent processing process.

[0004] In the existing grinding device for copolyester raw materials, during the grinding process, it cannot ensure that the copolyester raw materials are evenly distributed between the grinding discs, which easily causes the materials to accumulate or stay in the grinding area, resulting in the gaps between the grinding discs being easily blocked. The blocked gaps will cause uneven pressure distribution between the grinding discs, making some raw materials not be ground sufficiently, while some other raw materials may be over-ground. Therefore, the materials cannot be ground fully and evenly, which affects the grinding effect and reduces the processing quality of the subsequent products. Therefore, an ultra-low melting point copolyester raw material grinding device is proposed for the above problems. Content of the Utility Model

[0005] In order to make up for the deficiencies of the prior art and solve the problems raised in the above background technique, the utility model proposes an ultra-low melting point copolyester raw material grinding device.

[0006] The technical solution adopted by the present utility model to solve its technical problems is as follows: An ultra-low melting point copolyester raw material grinding device described in the present utility model includes a base. Two fixing frames are fixedly connected to the base, and a tank body is fixedly connected in cooperation with the two fixing frames. A feeding pipe is rotatably installed at the upper port of the tank body. A upper grinding disc is fixedly connected to the bottom end of the feeding pipe. Two annular limiting plates are fixedly connected to the inner wall of the tank body, and the bottom of the upper grinding disc is arranged within the two annular limiting plates. A toothed ring is sleeved on the outer surface of the feeding pipe. A first motor is installed on the tank body. A gear is installed at the output end of the first motor, and the gear meshes with the toothed ring. A support frame is fixedly connected within the tank body. A plurality of sleeves are fixedly connected to the support frame. A spring is fixedly connected to the bottom end of the sleeve, and the other end of the spring is fixedly connected to a movable rod. The tops of the plurality of movable rods are fixedly connected in cooperation with a lower grinding disc. A cone body is fixedly connected at the through port of the upper grinding disc and the lower grinding disc. A plurality of inclined air spray holes are opened on the cone body. A second motor is installed at the bottom side of the cone body. A fan is installed at the output end of the second motor, and the fan is arranged within the cone body. During the grinding process, when the preliminarily crushed copolyester raw material particles enter the grinding area through the feeding pipe, the first motor is started to make the gear rotate, forcing the toothed ring to drive the feeding pipe to rotate, and then the upper grinding disc also rotates accordingly. With the cooperation of the lower grinding disc, the material can be extruded and crushed, and the preliminarily crushed material can be ground and refined into small particles or powders. At the same time, the second motor is started to make the fan rotate. Through the high-speed rotation of the fan, gas is ejected through the inclined air spray holes. Under the action of the air flow, it helps to promote the flow and dispersion of the copolyester raw material between the grinding discs, reduce the phenomenon of material accumulation or retention, and the generated air flow can effectively blow away these particles, reduce the occurrence of blockage, so as to keep the grinding discs unobstructed. At the same time, a third motor is started to make the cam rotate. With the cooperation of the spring and the movable rod, the cam drives the lower grinding disc to reciprocate up and down. Through the coordinated cooperation of the air intake mechanism and the oscillation mechanism, it can ensure that the copolyester raw material is evenly distributed between the grinding discs, so as to ensure that each particle can be fully ground, so that the raw material can be ground fully and evenly, improving the grinding effect and ensuring the processing quality of the subsequent products.

[0007] Preferably, a plurality of triangular plates are installed on the support frame. A third motor is installed on each triangular plate. A cam is installed at the output end of the third motor, and the outer surface of the cam is in contact with the bottom side wall of the lower grinding disc. During the grinding process, the third motor is started to make the cam rotate. With the cooperation of the spring and the movable rod, the cam drives the lower grinding disc to reciprocate up and down. Through the oscillation, the distribution of the material on the grinding disc is more uniform, avoiding the problems of local accumulation and uneven grinding, which helps to achieve the comprehensive and uniform grinding of the material and improve the grinding effect.

[0008] Preferably, a discharge pipe is connected to the bottom port of the tank body, and a screening mechanism is arranged below the discharge pipe. The screening mechanism includes two limiting slide rails, and two limiting slide rails are fixedly connected to the base. Sliding plates are movably installed in both of the two limiting slide rails. The two sliding plates are fixedly connected with a material receiving trough in cooperation. Fixing plates are installed on both sides of the top end of the material receiving trough. The two fixing plates are fixedly connected with a fixing frame in cooperation. An arc-shaped filter plate is assembled at the bottom of the fixing frame. A limiting chute is opened at the top of the fixing frame, and the bottom port of the discharge pipe is arranged in the limiting chute. A large particle discharge port is arranged on one side of the fixing frame. A support seat is fixedly connected to the base, and a fourth motor is installed on the support seat. A rotating disk is installed at the output end of the fourth motor. An eccentric rod is fixedly connected to the rotating disk. A swing rod is sleeved on the eccentric rod, and the other end of the swing rod is hinged to a fixed seat, and the fixed seat is arranged on the side wall of the material receiving trough. During the grinding process, the finely ground particles and powder will enter the screening mechanism through the discharge pipe. At this time, start the fourth motor to make the rotating disk drive the eccentric rod to rotate reciprocally. Under the cooperation of the limiting slide rail and the sliding plate, the swing rod drives the material receiving trough, the fixing frame and the arc-shaped filter plate at the bottom to shake reciprocally. Under the action of the arc-shaped filter plate, the powder and fine particles can fall into the material receiving trough through the filter holes, and the larger particles are intercepted on the arc-shaped filter plate and finally discharged through the large particle discharge port, which is convenient for secondary grinding. By setting the oscillating screening mechanism, the rapid screening and separation of large particles from fine particles and powder can be realized, and they can be classified and collected.

[0009] Preferably, a support column is fixedly connected to the tank body, and a cylinder body is fixedly connected to the support column. A fifth motor is installed at the end of the cylinder body. A rotating shaft is connected to the output end of the fifth motor. Spiral crushing blades are fixed on the outer surface of the rotating shaft. A feeding pipe is connected to the bottom end of the circumferential surface of the cylinder body, and the bottom port of the feeding pipe is arranged in the guide pipe. A feeding hopper is connected to the top end of the circumferential surface of the cylinder body. Before grinding the raw materials, first feed the copolyester raw materials into the cylinder body through the feeding hopper, and start the fifth motor to make the spiral crushing blades rotate, so as to preliminarily crush the materials, which is convenient for quickly grinding them into fine particles subsequently and saves time for the subsequent grinding operation.

[0010] The beneficial effects of the present utility model are as follows:

[0011] 1. During the grinding process of the present utility model, when the preliminarily crushed copolyester raw material particles enter the grinding area through the material guiding pipe, the first motor is started to rotate the gear, forcing the toothed ring to drive the material guiding pipe to rotate, and then the upper grinding disc also rotates accordingly. With the cooperation of the lower grinding disc, the material can be extruded and crushed, and the preliminarily crushed material is ground and refined into fine particles or powders. At the same time, the second motor is started to rotate the fan. Through the high-speed rotation of the fan, the gas is ejected through the inclined air injection holes. Under the action of the air flow, it helps to promote the flow and dispersion of the copolyester raw material between the grinding discs, reduce the phenomenon of material accumulation or retention, and the generated air flow can effectively blow away these particles, reduce the occurrence of blockage, so as to keep the grinding discs unobstructed. At the same time, the third motor is started to rotate the cam. With the cooperation of the spring and the movable rod, the cam drives the lower grinding disc to oscillate up and down reciprocally. Through the coordinated cooperation of the air intake mechanism and the oscillation mechanism, it can ensure the uniform distribution of the copolyester raw material between the grinding discs, so as to ensure that each particle can be fully ground, thus being able to grind the raw material sufficiently and evenly, improving the grinding effect and ensuring the processing quality of the subsequent products;

[0012] 2. During the grinding process of the present utility model, the ground fine particles and powders will enter the screening mechanism through the discharge pipe. At this time, the fourth motor is started to rotate the rotating disc to drive the eccentric rod to rotate reciprocally. With the cooperation of the limit slide rail and the slide plate, the swing rod drives the material receiving groove, the fixed frame and the arc-shaped filter plate at the bottom to shake reciprocally. Under the action of the arc-shaped filter plate, the powders and fine particles can fall into the material receiving groove through the filter holes, and the larger particles are intercepted on the arc-shaped filter plate and finally discharged through the larger particle discharge port for secondary grinding. By setting the oscillating screening mechanism, the rapid screening and separation of larger particles from fine particles and powders can be realized, and they can be classified and collected. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 It is a schematic three-dimensional structure diagram of the whole device;

[0015] Figure 2 It is a schematic three-dimensional sectional structure diagram of the tank body;

[0016] Figure 3 It is a schematic three-dimensional sectional structure diagram of the tank body, the upper and lower grinding discs;

[0017] Figure 4 It is a three-dimensional structure schematic diagram of the oscillation mechanism;

[0018] Figure 5 It is a three-dimensional structure schematic diagram of the screening mechanism.

[0019] In the figure: 1, base; 2, fixed frame; 3, tank body; 4, material guide pipe; 5, upper grinding disc; 6, annular limiting plate; 7, support frame; 8, sleeve; 9, movable rod; 10, spring; 11, lower grinding disc; 12, third motor; 13, cam; 14, cone; 15, second motor; 16, fan; 17, inclined air injection hole; 18, toothed ring; 19, first motor; 20, gear; 21, discharge pipe; 22, limiting slide rail; 23, slide plate; 24, material receiving groove; 25, fixing plate; 26, fixed frame; 27, arc-shaped filter plate; 28, limiting chute; 29, support seat; 30, fourth motor; 31, rotating disc; 32, swing rod; 33, fixed seat; 34, support column; 35, cylinder body; 36, fifth motor; 37, rotating shaft; 38, spiral crushing blade; 39, feeding pipe; 40, feed hopper; 41, large particle discharge port. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-4As shown in the figure, a grinding device for an ultra-low melting point copolyester raw material includes a base 1. Two fixing frames 2 are fixedly connected to the base 1. The two fixing frames 2 are cooperatively fixedly connected with a tank body 3. A feeding pipe 4 is rotatably installed at the upper port of the tank body 3. A top grinding plate 5 is fixedly connected to the bottom end of the feeding pipe 4. Two annular limiting plates 6 are fixedly connected to the inner wall of the tank body 3, and the bottom of the top grinding plate 5 is arranged within the two annular limiting plates 6. A toothed ring 18 is sleeved on the outer surface of the feeding pipe 4. A first motor 19 is installed on the tank body 3. The output end of the first motor 19 is installed with a gear 20, and the gear 20 meshes with the toothed ring 18. A support frame 7 is fixedly connected within the tank body 3. A plurality of sleeves 8 are fixedly connected to the support frame 7. A spring 10 is fixedly connected to the bottom end of the sleeve 8, and the other end of the spring 10 is fixedly connected to a movable rod 9. The tops of the plurality of movable rods 9 are cooperatively fixedly connected with a bottom grinding plate 11. A cone body 14 is fixedly connected at the through-port of the top grinding plate 5 and the bottom grinding plate 11. A plurality of inclined air spray holes 17 are formed in the cone body 14. A second motor 15 is installed at the bottom side of the cone body 14. The output end of the second motor 15 is installed with a fan 16, and the fan 16 is arranged within the cone body 14. A plurality of triangular plates are installed on the support frame 7. A third motor 12 is installed on each triangular plate. The output end of the third motor 12 is installed with a cam 13, and the outer surface of the cam 13 is in contact with the bottom side wall of the bottom grinding plate 11. During the grinding process, when the preliminarily crushed copolyester raw material particles enter the grinding area through the feeding pipe 4, the first motor 19 is started to make the gear 20 rotate, forcing the toothed ring 18 to drive the feeding pipe 4 to rotate, and then the top grinding plate 5 also rotates accordingly. With the cooperation of the bottom grinding plate 11, the material can be extruded and crushed, and the preliminarily crushed material can be ground and refined into small particles or powders. At the same time, the second motor 15 is started to make the fan 16 rotate. Through the high-speed rotation of the fan 16, the gas is ejected through the inclined air spray holes 17. Under the action of the air flow, it helps to promote the flow and dispersion of the copolyester raw material between the grinding plates, reduce the phenomenon of material accumulation or retention, and the generated air flow can effectively blow away these particles, reduce the occurrence of blockage, so as to keep the grinding plates unobstructed. At the same time, the third motor 12 is started to make the cam 13 rotate. With the cooperation of the spring 10 and the movable rod 9, the cam 13 drives the bottom grinding plate 11 to oscillate up and down reciprocally. Through the coordinated cooperation of the air intake mechanism and the oscillation mechanism, it can ensure that the copolyester raw material is evenly distributed between the grinding plates, so as to ensure that each particle can be fully ground, and thus the raw material can be fully and evenly ground, improving the grinding effect and ensuring the processing quality of the subsequent products.

[0022] Please refer to Figure 5As shown in the figure, the bottom port of the tank body 3 is connected with a discharge pipe 21, and a screening mechanism is arranged below the discharge pipe 21. The screening mechanism includes two limit slide rails 22. Two limit slide rails 22 are fixedly connected to the base 1. Two slide plates 23 are movably installed in the two limit slide rails 22. The two slide plates 23 are fixedly connected with a material receiving groove 24 in cooperation. Fixed plates 25 are installed on both sides of the top end of the material receiving groove 24. The two fixed plates 25 are fixedly connected with a fixed frame 26 in cooperation. An arc-shaped filter plate 27 is assembled at the bottom of the fixed frame 26. A limit chute 28 is opened at the top of the fixed frame 26, and the bottom port of the discharge pipe 21 is arranged in the limit chute 28. A larger particle discharge port 41 is arranged on one side of the fixed frame 26. A support seat 29 is fixedly connected to the base 1. A fourth motor 30 is installed on the support seat 29. The output end of the fourth motor 30 is installed with a rotating disk 31. An eccentric rod is fixedly connected to the rotating disk 31. A swing rod 32 is sleeved on the eccentric rod, and the other end of the swing rod 32 is hinged with a fixed seat 33, and the fixed seat 33 is arranged on the side wall of the material receiving groove 24; during the grinding process, the finely ground particles and powder will enter the screening mechanism through the discharge pipe 21. At this time, start the fourth motor 30 to make the rotating disk 31 drive the eccentric rod to rotate reciprocally. Under the cooperation of the limit slide rails 22 and the slide plates 23, the swing rod 32 drives the material receiving groove 24, the fixed frame 26 and the arc-shaped filter plate 27 at the bottom to shake reciprocally. Under the action of the arc-shaped filter plate 27, the powder and fine particles can fall into the material receiving groove 24 through the filter holes, and the larger particles are intercepted on the arc-shaped filter plate 27 and finally discharged through the larger particle discharge port 41, which is convenient for secondary grinding. By setting the oscillating screening mechanism, the rapid screening and separation of larger particles from fine particles and powder can be realized, and they can be classified and collected.

[0023] Please refer to Figure 2 As shown in the figure, a support column 34 is fixedly connected to the tank body 3. A cylinder body 35 is fixedly connected to the support column 34. A fifth motor 36 is installed at the end of the cylinder body 35. The output end of the fifth motor 36 is connected with a rotating shaft 37. A spiral crushing blade 38 is fixed on the outer surface of the rotating shaft 37. The bottom end of the circumferential surface of the cylinder body 35 is connected with a feeding pipe 39, and the bottom port of the feeding pipe 39 is arranged in the guide pipe 4. The top end of the circumferential surface of the cylinder body 35 is connected with a feed hopper 40; before grinding the raw materials, first feed the copolyester raw materials into the cylinder body 35 through the feed hopper 40, and start the fifth motor 36 to make the spiral crushing blade 38 rotate, so as to be able to preliminarily crush the materials, which is convenient for quickly grinding them into fine particles subsequently and saves time for the subsequent grinding operation.

[0024] Working principle: In the existing grinding device for copolyester raw materials, during the grinding process, it cannot ensure that the copolyester raw materials are evenly distributed between the grinding discs, which easily causes the materials to accumulate or stay in the grinding area, resulting in the gaps between the grinding discs being easily blocked. The blocked gaps will lead to uneven pressure distribution between the grinding discs, causing some raw materials not to be fully ground, while some other raw materials may be over-ground, thus unable to grind the materials fully and evenly, affecting the grinding effect and reducing the processing quality of the subsequent products. Therefore, an ultra-low melting point copolyester raw material grinding device is proposed to address the above problems. Before grinding the raw materials, first, the copolyester raw materials enter the cylinder 35 through the feed hopper 40. The fifth motor 36 is started to make the spiral crushing blade 38 rotate, so as to initially crush the materials. When the initially crushed copolyester raw material particles enter the grinding area through the guide pipe 4, the first motor 19 is started to make the gear 20 rotate, forcing the toothed ring 18 to drive the guide pipe 4 to rotate, and then the upper grinding disc 5 also rotates accordingly. With the cooperation of the lower grinding disc 11, the materials can be extruded and crushed, and the initially crushed materials are ground and refined into fine particles or powders. At the same time, the second motor 15 is started to make the fan 16 rotate. Through the high-speed rotation of the fan 16, the gas is ejected through the inclined air injection holes 17. Under the action of the air flow, it helps to promote the flow and dispersion of the copolyester raw materials between the grinding discs, reducing the phenomenon of material accumulation or retention, and the generated air flow can effectively blow away these particles, reducing the occurrence of blockage, thus keeping the grinding discs unobstructed. At the same time, the third motor 12 is started to make the cam 13 rotate. With the cooperation of the spring 10 and the movable rod 9, the cam 13 drives the lower grinding disc 11 to oscillate up and down reciprocally. Through the coordinated cooperation of the air intake mechanism and the oscillation mechanism, it can ensure that the copolyester raw materials are evenly distributed between the grinding discs, thus ensuring that each particle can be fully ground, being able to grind the raw materials fully and evenly, improving the grinding effect, and ensuring the processing quality of the subsequent products.

[0025] During the grinding process, the ground fine particles and powders will enter the screening mechanism through the discharge pipe 21. At this time, the fourth motor 30 is started to make the rotating disc 31 drive the eccentric rod to rotate reciprocally. With the cooperation of the limit slide rail 22 and the slide plate 23, the swing rod 32 drives the material receiving groove 24, the fixed frame 26 and the arc-shaped filter plate 27 at the bottom to shake reciprocally. Under the action of the arc-shaped filter plate 27, the powders and fine particles can fall into the material receiving groove 24 through the filter holes, and the larger particles are intercepted on the arc-shaped filter plate 27 and finally discharged through the larger particle discharge port 41, facilitating their secondary grinding. By setting the oscillating screening mechanism, the rapid screening and separation of larger particles from fine particles and powders can be achieved, and they can be classified and collected.

[0026] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0027] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements fall within the scope of the present utility model claimed.

Claims

1. An ultra-low melting point copolyester raw material grinding device, characterized in that: It includes a base (1), on which two fixing brackets (2) are fixedly connected. The two fixing brackets (2) are cooperatively fixedly connected with a tank body (3). A feeding pipe (4) is rotatably installed at the upper port of the tank body (3). The bottom end of the feeding pipe (4) is fixedly connected with an upper grinding disc (5). Two annular limiting plates (6) are fixedly connected to the inner wall of the tank body (3), and the bottom of the upper grinding disc (5) is arranged within the two annular limiting plates (6). A toothed ring (18) is sleeved on the outer surface of the feeding pipe (4). A first motor (19) is installed on the tank body (3). The output end of the first motor (19) is installed with a gear (20), and the gear (20) meshes with the toothed ring (18). A support frame (7) is fixedly connected within the tank body (3). A plurality of sleeves (8) are fixedly connected to the support frame (7). A spring (10) is fixedly connected to the bottom end of the sleeve (8), and the other end of the spring (10) is fixedly connected with a movable rod (9). The tops of the plurality of movable rods (9) are cooperatively fixedly connected with a lower grinding disc (11). A cone body (14) is fixedly connected at the through port of the upper grinding disc (5) and the lower grinding disc (11). A plurality of inclined air spray holes (17) are formed in the cone body (14). A second motor (15) is installed at the bottom side of the cone body (14). The output end of the second motor (15) is installed with a fan (16), and the fan (16) is arranged within the cone body (14). A plurality of triangular plates are installed on the support frame (7). A third motor (12) is installed on each triangular plate. The output end of the third motor (12) is installed with a cam (13), and the outer surface of the cam (13) is in contact with the bottom side wall of the lower grinding disc (11).

2. An ultra-low melting point copolyester raw material grinding device according to claim 1, characterized in that: The bottom port of the tank body (3) is connected with a discharge pipe (21), and a screening mechanism is arranged below the discharge pipe (21). The screening mechanism includes two limiting slide rails (22), and the two limiting slide rails (22) are fixedly connected to the base (1).

3. An ultra-low melting point copolyester raw material grinding device according to claim 2, characterized in that: Sliding plates (23) are movably installed within the two limiting slide rails (22). The two sliding plates (23) are cooperatively fixedly connected with a material receiving groove (24). Fixing plates (25) are installed on both sides of the top end of the material receiving groove (24). The two fixing plates (25) are cooperatively fixedly connected with a fixing frame (26). An arc-shaped filter plate (27) is assembled at the bottom of the fixing frame (26). A limiting sliding groove (28) is formed at the top of the fixing frame (26), and the bottom port of the discharge pipe (21) is arranged within the limiting sliding groove (28). A larger particle discharge port (41) is arranged on one side of the fixing frame (26).

4. An ultra-low melting point copolyester raw material grinding device according to claim 1, characterized in that: A support seat (29) is fixedly connected to the base (1). A fourth motor (30) is installed on the support seat (29). The output end of the fourth motor (30) is installed with a rotating disc (31). An eccentric rod is fixedly connected to the rotating disc (31). A swing rod (32) is sleeved on the eccentric rod, and the other end of the swing rod (32) is hinged to a fixed seat (33), and the fixed seat (33) is arranged on the side wall of the material receiving groove (24).

5. An ultra-low melting point copolyester raw material grinding device according to claim 1, characterized in that: A support column (34) is fixedly connected to the tank body (3), a cylinder body (35) is fixedly connected to the support column (34), a fifth motor (36) is installed at the end of the cylinder body (35), a rotating shaft (37) is connected to the output end of the fifth motor (36), and spiral crushing blades (38) are fixed on the outer surface of the rotating shaft (37).

6. An ultralow melting point copolyester raw material grinding device according to claim 5, characterized in that: A feeding pipe (39) is connected to the bottom end of the circumferential surface of the cylinder body (35), and the bottom port of the feeding pipe (39) is arranged in the material guiding pipe (4). An inlet hopper (40) is connected to the top end of the circumferential surface of the cylinder body (35).

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