Polyurethane synchronous belt extrusion molding equipment

Abstract

The utility model discloses extrusion molding equipment for a polyurethane synchronous belt, relates to the technical field of molding equipment, and aims to solve the problems in the prior art that a large amount of water is consumed during cooling in the extrusion molding process of the polyurethane synchronous belt, cyclic utilization of water resources is not facilitated, and the practicability is poor. A die head is fixedly installed on one side of the extrusion box, a cooling sleeve is fixedly installed on one side of the die head, a discharging cavity is formed in the die head and penetrates through the cooling sleeve, a cooling cavity is formed in the cooling sleeve along the outer side of the discharging cavity, and a water supply pipe is fixedly installed above the cooling sleeve. A water return pipe is fixedly installed below the cooling sleeve, the water supply pipe and the cooling sleeve both communicate with the cooling cavity, a feeding box is arranged above the extrusion box, a heat dissipation box is fixedly installed on one side of the feeding box, a heat dissipation plate is arranged in the heat dissipation box, and a conveying pump is connected to the lower portion of the heat dissipation plate through a pipeline.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of forming equipment, specifically is a kind of polyurethane synchronous belt extrusion forming equipment. BACKGROUND

[0002] Polyurethane synchronous belt is a kind of synchronous transmission belt made of imported thermoplastic polyurethane material, and the polyurethane material gives the synchronous belt high strength and excellent wear resistance, which can maintain good performance in long-term use, reducing the frequency of replacement and maintenance. During the production of polyurethane synchronous belt, extrusion molding equipment is needed for extrusion.

[0003] For example, the authorized patent (a polyurethane synchronous belt extrusion molding equipment) with publication number CN213947365U: the extruder body is fixed on the outside of the extrusion port, and a mounting portion is provided on the outside of the extruder body. The mounting portion is provided with an extrusion channel, and the extrusion channel is aligned with the extrusion port of the extruder body. The mounting portion is connected with a plurality of extrusion heads which move in the vertical direction. The extrusion heads are connected with a cooling water tank, and the adjacent two extrusion heads are provided with a heat insulation pad.

[0004] The above-mentioned prior art can replace the extrusion head regularly, but does not have the recycling ability of cooling water, and consumes a large amount of water during cooling in the process of polyurethane synchronous belt extrusion molding, which is not conducive to the recycling of water resources and has poor practicability. Therefore, there is an urgent need in the market to develop a polyurethane synchronous belt extrusion molding equipment to help people solve the existing problems. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a kind of polyurethane synchronous belt extrusion molding equipment to solve the problem of consuming a large amount of water during cooling in the process of polyurethane synchronous belt extrusion molding in the above background technology, which is not conducive to the recycling of water resources and has poor practicability.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of polyurethane synchronous belt extrusion molding equipment, including extrusion box, the one side of the extrusion box is fixedly installed with die head, the one side of the die head is fixedly installed with cooling jacket, the inside of the die head is provided with discharge cavity, and the discharge cavity penetrates cooling jacket, the inside of the cooling jacket is provided with cooling cavity along the outside of discharge cavity, the upper portion of the cooling jacket is fixedly installed with water supply pipe, the lower portion of the cooling jacket is fixedly installed with backwater pipe, the water supply pipe and cooling jacket are communicated with cooling cavity, the upper portion of the extrusion box is provided with feed box, the one side of the feed box is fixedly installed with heat dissipation box, the inside of the heat dissipation box is provided with heat dissipation plate, the lower portion of the heat dissipation plate is connected with conveying pump by pipeline, one end of the backwater pipe extends into the inside of heat dissipation box and is fixedly connected with heat dissipation plate, one end of the water supply pipe extends into the inside of heat dissipation box and is fixedly connected with conveying pump.

[0007] Preferably, the inside of the feeding box is provided with a material cavity, the inside of the feeding box is provided with an air cavity along the outside of the material cavity, the bottom of the inside of the heat dissipation box is communicated with the air cavity, and the air cavity is provided with an air outlet above the side away from the heat dissipation box.

[0008] Preferably, the upper side of the heat dissipation box is fixedly provided with a fan box, the inside of the fan box is fixedly provided with a fan, and the front end and the rear end of the heat dissipation plate are symmetrically fixedly provided with a plurality of heat dissipation fins.

[0009] Preferably, the inside of the heat dissipation plate is provided with a plurality of grooves, and the inside of the heat dissipation plate is provided with a branch cavity along the two sides of the groove.

[0010] Preferably, the lower side of the feeding box is fixedly provided with a material pipe, the material pipe is fixedly connected with the extrusion box, and the inside of the feeding box is fixedly provided with a material conveying screw rod.

[0011] Preferably, the inside of the extrusion box is rotatably provided with an extrusion screw rod, the outside of the extrusion box is fixedly provided with a heating jacket, and the inside of the heating jacket is provided with an electric heating pipe.

[0012] Preferably, the inside of the cooling jacket is fixedly provided with a temperature guide plate along the inside of the cooling cavity.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1. The cooling jacket in the equipment is provided with a square water cavity as a cooling cavity, the water supply pipe and the backwater pipe are communicated with the cooling cavity and the heat dissipation plate in the heat dissipation box respectively, and the circulation driving of water flow is realized by the auxiliary conveying pump, the backwater pipe is fixedly connected with the heat dissipation plate by winding from the rear side to the upper side of the cooling jacket, the heat dissipation plate in the heat dissipation box is effectively utilized to exchange heat, the temperature of the cooling water is reduced, the cooling water that is cooled is sent back to the cooling jacket by the conveying pump, a closed cooling water circulation system is formed, a large amount of water consumption in the cooling process in the polyurethane synchronous belt extrusion molding process is avoided, the recycling of water resources is promoted, and the practicality and environmental protection performance of the equipment are enhanced.

[0015] 2. The air cavity in the inside of the feeding box is communicated with the heat dissipation box, the air flow is formed by the fan in the fan box, the heat dissipation plate is supplied with air by the fan, the water in the heat dissipation plate can be stably cooled, the air after temperature rise flows into the air cavity, the polyurethane synchronous belt raw material can be preheated, and the practicality of the equipment is increased.

[0016] 3. The utility model discloses a feed screw rod is set to make that the polyurethane synchronous belt raw material is spiral conveying when moving down conveying in the feed tank, and the centrifugal action that produces through spiral downward makes the polyurethane synchronous belt raw material can be stable with the inner wall of feed tank contact, is favorable to the preheating work of polyurethane synchronous belt raw material, increased practicality. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the polyurethane synchronous belt extrusion forming equipment of the utility model;

[0018] Figure 2 It is a sectional view of the polyurethane synchronous belt extrusion forming equipment of the utility model;

[0019] Figure 3 It is a sectional view of the cooling jacket of the utility model;

[0020] Figure 4 It is a sectional view of the feed tank and the heat sink of the utility model;

[0021] Figure 5 It is a sectional view of the heat dissipation plate of the utility model.

[0022] In the drawing: 1, extrusion tank;2, heating jacket;3, die;301, discharge cavity;4, cooling jacket;401, cooling cavity;5, feed tank;501, material cavity;502, air cavity;6, heat sink;7, fan box;8, water supply pipe;9, return pipe;10, heat dissipation plate;1001, slot;1002, branch cavity;11, conveying pump;12, extrusion screw;13, electric heating tube;14, temperature guide plate;15, heat dissipation fin;16, feed screw rod;17, material pipe. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0024] Please refer to Figures 1-5The utility model provides an embodiment: a kind of polyurethane synchronous belt extrusion forming equipment, including extrusion box 1, the one side of extrusion box 1 is fixedly installed with die head 3, the one side of die head 3 is fixedly installed with cooling jacket 4, the inside of die head 3 is provided with discharge cavity 301, and discharge cavity 301 penetrates cooling jacket 4, cooling cavity 401 is provided with cooling jacket 4 along the outside of discharge cavity 301 in the inside, cooling cavity 401 is set to square water cavity, the top of cooling jacket 4 is fixedly installed with water supply pipe 8, the below of cooling jacket 4 is fixedly installed with return water pipe 9, return water pipe 9 from the rear of cooling jacket 4 to the top of cooling jacket 4, water supply pipe 8 and cooling jacket 4 are all communicated with cooling cavity 401, the top of extrusion box 1 is provided with feed box 5, the one side of feed box 5 is fixedly installed with heat dissipation box 6, the inside of heat dissipation box 6 is provided with heat dissipation plate 10, heat dissipation plate 10 is made of die-cast aluminum alloy, heat dissipation plate 10 below is connected with conveying pump 11 by pipeline, one end of return water pipe 9 extends into the inside of heat dissipation box 6 and is fixedly connected with heat dissipation plate 10, one end of water supply pipe 8 extends into the inside of heat dissipation box 6 and is fixedly connected with conveying pump 11.

[0025] When using, the cooling jacket 4 in the equipment is provided with square water cavity as cooling cavity 401, the water supply pipe 8 and return water pipe 9 are communicated with cooling cavity 401 and heat dissipation plate 10 in heat dissipation box 6 respectively, and are assisted by conveying pump 11 to realize the circulating drive of water flow, return water pipe 9 is fixedly connected with heat dissipation plate 10 from the rear to the top of cooling jacket 4, effectively utilizes heat dissipation plate 10 in heat dissipation box 6 to exchange heat, reduces the temperature of cooling water, and water supply pipe 8 is sent back to cooling jacket 4 by conveying pump 11, forms a closed cooling water circulation system, not only avoids the consumption of a large amount of water during the cooling of polyurethane synchronous belt extrusion forming process, but also promotes the recycling of water resources, enhances the practicality and environmental performance of the equipment.

[0026] Please refer to Figure 2 And Figure 4 The inside of feed box 5 is provided with material cavity 501, the inside of feed box 5 is provided with air cavity 502 along the outside of material cavity 501, the bottom in heat dissipation box 6 is communicated with air cavity 502, the top of air cavity 502 away from heat dissipation box 6 side is provided with exhaust port, the top of heat dissipation box 6 is fixedly installed with fan box 7, and the inside of fan box 7 is fixedly installed with fan.

[0027] Air cavity 502 in feed box 5 is communicated with heat dissipation box 6, and air flow is carried out by fan in fan box 7, then air is supplied to heat dissipation box 6 by fan, can stably heat the water in heat dissipation plate 10, and the air after heating flows into air cavity 502, can preheat polyurethane synchronous belt raw material, increase the practicality of the equipment.

[0028] Please refer to Figure 4 AndFigure 5 The front end and the rear end of the heat dissipation plate 10 are respectively symmetrically fixedly installed with a plurality of heat dissipation fins 15, the heat dissipation fins 15 are made of die-cast aluminum alloy, the inside of the heat dissipation plate 10 is provided with a plurality of slot holes 1001, and the inside of the heat dissipation plate 10 is provided with a branch flow cavity 1002 along the two sides of the slot hole 1001.

[0029] The arrangement of the heat dissipation fins 15 increases the heat dissipation capacity of the heat dissipation plate 10, and the arrangement of the slot hole 1001 facilitates the passage of air through the heat dissipation plate 10, enhances the heat dissipation, and the arrangement of the plurality of branch flow cavities 1002 facilitates the distribution of cooling water, improves the cooling efficiency of the cooling water, and increases the practicability.

[0030] Please refer to Figure 2 and Figure 4 The lower part of the feeding box 5 is fixedly installed with a material pipe 17, the material pipe 17 is communicated with the material cavity 501, the material pipe 17 is fixedly connected with the extrusion box 1, and the inside of the feeding box 5 is fixedly installed with a material conveying screw rod 16.

[0031] The arrangement of the material pipe 17 facilitates the input of the polyurethane synchronous belt raw material from the feeding box 5 into the extrusion box 1, and the arrangement of the material conveying screw rod 16 enables the polyurethane synchronous belt raw material to be spirally conveyed when moving downward in the feeding box 5, and the centrifugal force generated by the spiral downward movement enables the polyurethane synchronous belt raw material to stably contact the inner wall of the feeding box 5, which is beneficial to the preheating of the polyurethane synchronous belt raw material, and increases the practicability.

[0032] Please refer to Figure 2 The inside of the extrusion box 1 is rotatably installed with an extrusion screw rod 12, the inside of the extrusion box 1 is provided with a driving motor of the extrusion screw rod 12, the outside of the extrusion box 1 is fixedly installed with a heating jacket 2, and the inside of the heating jacket 2 is provided with an electric heating pipe 13.

[0033] The extrusion screw rod 12 rotatably installed in the extrusion box 1 and the heating jacket 2 and the electric heating pipe 13 fixedly installed on the outside of the extrusion box 1 enable the rotational movement of the extrusion screw rod 12 to mix, plasticize and extrude the raw material in the extrusion box 1, and ensure the continuity and stability of the extrusion molding process.

[0034] Please refer to Figure 3 The inside of the cooling jacket 4 is fixedly installed with a temperature guide plate 14 along the inside of the cooling cavity 401, the temperature guide plate 14 is made of die-cast aluminum alloy, which improves the temperature guide efficiency and enables the heat in the extruded polyurethane synchronous belt to be quickly transferred to the cooling water, thereby improving the cooling efficiency.

[0035] Working principle: when using, the raw materials enter the material cavity 501 of the feeding box 5 and move downward under the spiral conveying action of the feeding screw rod 16, and the raw materials are preheated by the air in the air cavity 502 which is heated, the preheated raw materials enter the extruding box 1, and under the rotating movement of the extruding screw rod 12 and the heating jacket 2 and the electric heating tube 13 arranged outside the extruding box 1, the raw materials are mixed and plasticized, so that the extruding process is continuous and stable, the plasticized raw materials are extruded through the die head 3, and the cooling water in the cooling cavity 401 in the cooling jacket 4 cools the extruded polyurethane synchronous belt, the cooling water forms a closed loop circulation system through the water supply pipe 8 and the return pipe 9, the return pipe 9 sends the cooling water into the heat dissipation plate 10 in the heat dissipation box 6 to exchange heat, and then the delivery pump 11 sends the cooled water back to the cooling jacket 4, the heat dissipation fins 15 and the groove holes 1001 on the heat dissipation plate 10 and the branch flow cavity 1002 are arranged to enhance the heat dissipation effect and improve the cooling efficiency of the cooling water, and at the same time, the fan in the fan box 7 supplies air to the heat dissipation box 6, further enhancing the heat dissipation capacity.

[0036] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A polyurethane timing belt extrusion molding apparatus comprising an extrusion box (1), characterized in that: The side of the extrusion box (1) is fixedly installed with a die head (3), one side of the die head (3) is fixedly installed with a cooling jacket (4), the inside of the die head (3) is provided with a discharging cavity (301), and the discharging cavity (301) penetrates through the cooling jacket (4), the inside of the cooling jacket (4) is provided with a cooling cavity (401) along the outside of the discharging cavity (301), the upper side of the cooling jacket (4) is fixedly installed with a water supply pipe (8), the lower side of the cooling jacket (4) is fixedly installed with a backwater pipe (9), the water supply pipe (8) and the cooling jacket (4) are in communication with the cooling cavity (401), the upper side of the extrusion box (1) is provided with a feeding box (5), one side of the feeding box (5) is fixedly installed with a heat dissipation box (6), the inside of the heat dissipation box (6) is provided with a heat dissipation plate (10), the lower side of the heat dissipation plate (10) is connected with a conveying pump (11) through a pipeline, one end of the backwater pipe (9) extends into the inside of the heat dissipation box (6) and is fixedly connected with the heat dissipation plate (10), one end of the water supply pipe (8) extends into the inside of the heat dissipation box (6) and is fixedly connected with the conveying pump (11).

2. The polyurethane synchronous belt extrusion molding apparatus according to claim 1, characterized by: The inside of the feeding box (5) is provided with a material cavity (501), the inside of the feeding box (5) is provided with an air cavity (502) along the outside of the material cavity (501), the bottom of the inside of the heat dissipation box (6) is in communication with the air cavity (502), and the upper side of the air cavity (502) away from the heat dissipation box (6) is provided with an air outlet.

3. The polyurethane synchronous belt extrusion molding apparatus according to claim 2, characterized by: The upper side of the heat dissipation box (6) is fixedly installed with a fan box (7), the inside of the fan box (7) is fixedly installed with a fan, and the front end and the rear end of the heat dissipation plate (10) are respectively and symmetrically fixedly installed with a plurality of heat dissipation fins (15).

4. The polyurethane synchronous belt extrusion molding apparatus according to claim 3, characterized by: The inside of the heat dissipation plate (10) is provided with a plurality of slot holes (1001), and the inside of the heat dissipation plate (10) is provided with a branch flow cavity (1002) along both sides of the slot hole (1001).

5. The polyurethane synchronous belt extrusion molding apparatus according to claim 2, characterized by: The lower side of the feeding box (5) is fixedly installed with a material pipe (17), the material pipe (17) is fixedly connected with the extrusion box (1), and the inside of the feeding box (5) is fixedly installed with a material conveying screw rod (16).

6. The polyurethane synchronous belt extrusion molding apparatus according to claim 1, characterized by: The inside of the extrusion box (1) is rotatably installed with an extrusion screw rod (12), the outside of the extrusion box (1) is fixedly installed with a heating jacket (2), and the inside of the heating jacket (2) is provided with an electric heating pipe (13).

7. The polyurethane synchronous belt extrusion molding apparatus according to claim 1, characterized by: The inside of the cooling jacket (4) is fixedly installed with a temperature guide plate (14) along the inside of the cooling cavity (401).

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