An extrusion molding machine for the production of automotive rubber parts

Abstract

The invention discloses an extrusion molding machine for producing automobile rubber parts, which relates to the technical field of extrusion molding and comprises a rubber extruder, wherein one side of the rubber extruder is fixedly connected with an extrusion head, wherein rubber material is arranged inside the extrusion head, and one side of the extrusion head is provided with a shaping cooling mechanism and a roller. By providing the shaping cooling mechanism, the high temperature on the rubber strip is quickly absorbed onto a shaping block, and the heat absorbed by the shaping block is continuously contacted with the air through rotation by the rolling of the shaping block, so that the temperature is dissipated like the air, and the stable heat dissipation of the rubber strip coming out of the extrusion head is maintained, and the square rubber strip is prevented from not having a strong deformation resistance as a cylindrical rubber strip under high temperature due to shape problems, and is easily softened and deformed due to high temperature when clamped by subsequent rollers after high temperature discharge, and the rubber material is further extruded and shaped by the shape of the adapted shaping block to ensure the stability of its shape.

Description

Technical Field

[0001] The invention relates to the technical field of extrusion molding, in particular to an extrusion molding machine for producing automobile rubber parts. Background Art

[0002] Extruder is a type of plastic machinery, which originated in the 18th century. The extruder head can be divided into right-angle head and bevel head according to the direction of the material flow in the head and the angle between the center line of the screw.

[0003] A novel rubber alloy extrusion molding machine described in the patent application with publication number CN206937932U comprises a base, a control box is installed on one side above the base, a reduction box is installed on one side of the control box, a second motor is installed on one side of the bottom of the reduction box, a transmission shaft is installed on one side of the top of the reduction box, a hopper is installed above the buffer tank, a feed pipe is installed on one side of the buffer tank, and the feed pipe is connected to the top of the extrusion chamber, a spiral extruder is installed inside the extrusion chamber, an extrusion head is installed at one end of the extrusion chamber, an air pipe is installed below the extrusion chamber, a control valve is installed on the air pipe, a pad is installed on the other side above the base, and a gas tank is installed above the pad;

[0004] At present, some sealing strips on automobile rubber parts are square strips of rubber. At present, most rollers used for conveying rubber strips extruded into conventional cylindrical shapes are also used for clamping and conveying square rubber strips. Since the square rubber strips have a high temperature and a soft rubber when they are just extruded, they are prone to deformation when being clamped and conveyed by rollers. When the deformed square rubber strips are subsequently used on automobiles, they are not tightly fitted, which affects their sealing effect. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an extrusion molding machine for producing automotive rubber parts, which achieves the purpose of solving the above-mentioned problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an extrusion molding machine for producing automotive rubber parts, comprising a rubber extruder, one side of the rubber extruder is fixedly connected to an extrusion head, a rubber material is arranged inside the extrusion head, and one side of the extrusion head is provided with a shaping cooling mechanism and a roller;

[0007] The shaping cooling mechanism comprises:

[0008] A shaping block, wherein an arc groove is provided in the middle of the shaping block, and the number of the shaping blocks is two, and the two shaping blocks are in contact with each other, and the shaping blocks are used to clamp and shape the rubber material;

[0009] A magnetic groove is provided on the outer wall of the shaping block, and the two shaping blocks are magnetically attracted to each other through the magnetic groove. A fan blade is fixedly connected to one side of the shaping block, and the outer wall of the fan blade is an inclined surface. A bearing ring is rotatably connected to the outer wall of the roller, and the magnetic groove is used to magnetically attract the two shaping blocks together;

[0010] The rubber material inside the rubber extruder is extruded from the extrusion head at one end of the rubber extruder. The extruded strip-shaped quadrangular rubber material is pulled into the roller, and then the rubber strip is supported and moved by several rollers. Then the shaping blocks are placed above and below the rubber material. The two shaping blocks are close to each other and are firmly magnetically attracted together through the magnetic attraction of the opposite poles of the magnetic slots on the shaping blocks.

[0011] Preferably, a sliding groove is provided on the inner wall of the shaping block, and a heat dissipation block is slidably connected to the inner wall of the sliding groove.

[0012] Preferably, a heat dissipation groove is formed on the inner wall of the heat dissipation block, and a U-shaped groove is formed on the outer wall of the heat dissipation block.

[0013] Preferably, the shaping block contacts the outer wall of the rubber material through the arc groove, and the two shaping blocks are fitted to the surface of the rubber material through the arc groove.

[0014] Preferably, a heat dissipation mechanism is provided inside the shaping block, and the heat dissipation mechanism comprises a connecting ball, an outer wall of the connecting ball is fixedly connected to a sliding rod, and the sliding rod is slidably connected to the inner wall of the heat dissipation block.

[0015] Preferably, one end of the sliding rod is fixedly connected to a spring A, and one end of the spring A is fixedly connected to the inner wall of the heat dissipation block.

[0016] Preferably, a pull rope is fixedly connected to the outer wall of the connecting ball, and one end of the pull rope is fixedly connected to the outer wall of the heat dissipation block.

[0017] Preferably, the outer wall of the connecting ball is fixedly connected with a telescopic rod, and the other end of the telescopic rod is fixedly connected to the outer wall of another connecting ball.

[0018] The present invention provides an extrusion molding machine for producing automobile rubber parts. It has the following beneficial effects:

[0019] 1. The present invention provides a shaping cooling mechanism to quickly absorb the high temperature on the rubber strip onto the shaping block, and through the rolling of the shaping block, the heat absorbed by the shaping block is continuously contacted with the air through rotation, so that the temperature is dissipated like the air, thereby maintaining stable heat dissipation of the rubber strip coming out of the extruder, preventing the square rubber strip from having a weaker deformation resistance than the cylindrical rubber strip due to shape problems under high temperature conditions, and preventing the problem of softening and deformation due to high temperature when being clamped by subsequent rollers after high-temperature discharge. The rubber material is further extruded and shaped by the shape of the adapted shaping block to ensure the stability of its shape.

[0020] 2. The present invention sets a shaping cooling mechanism. When the shaping block rotates, it drives the fan blades on both sides to rotate and fan, and the air is circulated horizontally. The temperature on the shaping block is dissipated outward through the larger surface area of ​​the heat sink and the air. The fan blades are set to blow the air in the direction of the air flow so that the air flows through the heat sink and the temperature on the heat sink is quickly dissipated, thereby maintaining the cooling efficiency of the shaping block, avoiding the problem that the shaping block has a high temperature after absorbing heat for a long time and it is difficult to continue to ensure the heat absorption of the rubber material during long-term extrusion work in the case of high temperature in summer;

[0021] 3. The present invention sets a shaping cooling mechanism. The faster the rubber material is extruded, the shorter the cooling residence time in the rubber extruder. Therefore, the temperature of the rubber material coming out of the extruder head is higher. At this time, since the extrusion speed of the rubber material is faster, the speed of moving the shaping block is also faster, and the rotation speed of the shaping block is also increased accordingly. After the rotation speed of the shaping block increases, the shaping block will accelerate the heat exchange speed with the air, and the fan blades will move the air flow faster, so as to achieve a corresponding synchronous improvement in the heat dissipation effect of the shaping block when the rubber material is transmitted at high speed and high temperature.

[0022] 4. The present invention sets a heat dissipation mechanism, so that when the rubber material presents different temperatures at different extrusion speeds, the heat dissipation block is thrown out to different distances, so as to prevent the rubber material from being cooled too quickly when it could have been cooled normally, resulting in a large change in the internal temperature, and causing changes in internal stress, which leads to various problems such as affecting the flexibility and wear resistance of the rubber material. When the extrusion speed of the extruder is fast and the temperature is high, the heat is quickly dissipated by pushing out the heat dissipation block. Therefore, with the different extrusion speeds of the rubber material, the shaping block will achieve the best corresponding heat dissipation effect to ensure that the quality of the rubber material after extrusion is as little affected as possible.

[0023] 5. The present invention provides a shaping cooling mechanism. After the extrusion work is completed, when the rubber extruder is replaced with a different extrusion mold, the two shaping blocks can be pulled apart from each other to break away from the magnetic attraction between the magnetic grooves. The rubber extruder can then extrude conventional round rubber strips normally. When it is necessary to extrude a rectangular rubber material, the two shaping blocks can be placed on the straightened rubber material between the roller and the extrusion head. In this way, the shaping blocks can be used for multiple purposes and are convenient to carry and transport. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the present invention;

[0025] Figure 2 For the present invention Figure 1 A magnified image of point A;

[0026] Figure 3 It is a structural schematic diagram of the shaping cooling mechanism of the present invention;

[0027] Figure 4 It is a front view of the shaping cooling mechanism of the present invention;

[0028] Figure 5 It is a structural schematic diagram of the shaping cooling mechanism of the present invention;

[0029] Figure 6 It is a schematic cross-sectional structure diagram of the shaping cooling mechanism of the present invention;

[0030] Figure 7 The cross-sectional disassembly structure of the shaping cooling mechanism of the present invention is shown in FIG. Figure 1 ;

[0031] Figure 8 It is a structural schematic diagram of the heat dissipation block of the present invention;

[0032] Fig. 9 It is a structural schematic diagram of the spring B of the present invention;

[0033] Fig.10 The cross-sectional disassembly structure of the shaping cooling mechanism of the present invention is shown in FIG. Figure 2 ;

[0034] Fig.11 The motion state of the shaping cooling mechanism of the present invention is Figure 1 ;

[0035] Fig.12 The motion state of the shaping cooling mechanism of the present invention Figure 2 ;

[0036] Fig.13 For the present invention Fig.10 A magnified view of point B;

[0037] Fig.14 It is a structural schematic diagram of the spring A of the present invention;

[0038] Fig.15 It is a structural schematic diagram of the heat dissipation mechanism of the present invention;

[0039] Fig.16 It is a motion state diagram of the heat dissipation mechanism of the present invention.

[0040] In the figure: 1 rubber extruder, 2 extrusion head, 3 shaping cooling mechanism, 301 shaping block, 302 arc groove, 303 magnetic groove, 304 fan blade, 305 heat dissipation block, 306 heat dissipation groove, 307 U-shaped groove, 4 heat dissipation mechanism, 401 connecting ball, 402 sliding rod, 403 spring A, 404 pull rope, 405 telescopic rod, 406 spring B, 5 rubber material, 6 roller, 7 bearing ring. DETAILED DESCRIPTION

[0041] Example 1: Please refer to Figure 1-4 The present invention provides a technical solution: an extrusion molding machine for producing automobile rubber parts, comprising a rubber extruder 1, an extrusion head 2 is fixedly connected to one side of the rubber extruder 1, a rubber material 5 is arranged inside the extrusion head 2, and a shaping cooling mechanism 3 and a roller 6 are arranged on one side of the extrusion head 2;

[0042] The shaping cooling mechanism 3 comprises:

[0043] A shaping block 301, wherein an arc groove 302 is provided in the middle of the shaping block 301, and there are two shaping blocks 301, which are in contact with each other, and the shaping blocks 301 are used to clamp and shape the rubber material 5;

[0044] Magnetic groove 303, the magnetic groove 303 is provided on the outer wall of the shaping block 301, the two shaping blocks 301 are magnetically attracted to each other through the magnetic groove 303, a fan blade 304 is fixedly connected to one side of the shaping block 301, the outer wall of the fan blade 304 is an inclined surface, the outer wall of the roller 6 is rotatably connected to the bearing ring 7, and the magnetic groove 303 is used to magnetically attract the two shaping blocks 301 together;

[0045] When the rubber extruder 1 is working, the inner quadrilateral rubber material 5 is extruded from the extrusion head 2 at one end of the rubber extruder 1, and the extruded strip quadrilateral rubber material 5 is pulled into the roller 6, and then the rubber strip is supported and moved by the rollers 6, and then the shaping blocks 301 are placed above and below the rubber material 5, and the two shaping blocks 301 are close to each other and firmly attracted together by the magnetic attraction of the opposite poles of the magnetic slots 303 on the shaping blocks 301, and the middle part of the upper and lower shaping blocks 301 after being attached to form a rubber The groove profile is the same as the outer shape of the rubber material 5, so that the quadrangular rubber material 5 is completely fitted, and the rubber material 5 will be tightly attached to the upper and lower shaping blocks 301 through its own elastic force, and after the rubber material 5 is extruded, the upper and lower shaping blocks 301 are rotated, and the two shaping blocks 301 will first move to the roller 6 together with the rubber material 5, and the outer wall of the shaping block 301 is against the bearing ring 7 on the roller 6, so as to keep the position of the shaping block 301 stable, so that the quadrangular rubber strip passes through the two shaping blocks 301 evenly and stably;

[0046] When the quadrilateral rubber strip is just extruded by the extruder 2, the temperature of the rubber strip is relatively high. When the rubber strip is attached to the shaping block 301 and is moved to roll by the shaping block 301, the shaping block 301 will quickly absorb the high temperature on the rubber strip to the shaping block 301 by completely attaching to the rubber strip, and the heat absorbed by the shaping block 301 is continuously contacted with the air through rotation by the rolling of the shaping block 301, so as to dissipate the temperature like the air, thereby maintaining stable heat dissipation of the rubber strip coming out of the extruder 2, preventing the quadrilateral rubber strip from having a poorer deformation resistance than the cylindrical rubber strip due to shape problems under high temperature conditions, and easily being softened and deformed by the subsequent roller 6 during transmission after being discharged at high temperature, and further extruding and shaping the rubber material 5 through the shape of the adapted shaping block 301 to ensure its shape stability;

[0047] Example 2: Please refer to Figure 1-12 On the basis of the first embodiment, the present invention provides a technical solution: a sliding groove is provided on the inner wall of the shaping block 301, and a heat dissipation block 305 is slidably connected to the inner wall of the sliding groove.

[0048] A heat dissipation groove 306 is formed on the inner wall of the heat dissipation block 305 , and a U-shaped groove 307 is formed on the outer wall of the heat dissipation block 305 .

[0049] The shaping block 301 contacts the outer wall of the rubber material 5 through the arc groove 302, and the two shaping blocks 301 are in contact with the surface of the rubber material 5 through the arc groove 302;

[0050] When the shaping block 301 rotates, the fan blades 304 on both sides will be driven to rotate and fan, so that the air will be circulated horizontally, and the temperature on the shaping block 301 will be dissipated outward through the larger surface area of ​​the heat sink 305 and the air. The airflow direction of the fan blades 304 is to make the air flow through the heat sink 305, so as to quickly dissipate the temperature on the heat sink 305, thereby maintaining the cooling efficiency of the shaping block 301, avoiding the problem that the shaping block 301 has a high temperature after absorbing heat for a long time and it is difficult to continue to ensure the heat absorption of the rubber material 5 during long-term extrusion work in the case of high temperature in summer;

[0051] The faster the rubber material 5 is extruded, the shorter the cooling time in the rubber extruder 1 is, so the temperature of the rubber material 5 coming out of the extruder head 2 is higher. At this time, since the extrusion speed of the rubber material 5 is faster, the speed of moving the shaping block 301 is also faster, and the rotation speed of the shaping block 301 is also increased accordingly. After the rotation speed of the shaping block 301 increases, the shaping block 301 will speed up the heat exchange speed with the air, and the fan blades 304 can move the air flow faster, so that when the rubber material 5 is transmitted at high speed and high temperature, the heat dissipation effect of the shaping block 301 is correspondingly improved;

[0052] Example 3: Please refer to Figure 1-16 On the basis of Embodiment 1 and Embodiment 2, the present invention provides a technical solution: a heat dissipation mechanism 4 is arranged inside the shaping block 301, and the heat dissipation mechanism 4 includes a connecting ball 401, and a sliding rod 402 is fixedly connected to the outer wall of the connecting ball 401, and the sliding rod 402 is slidably connected to the inner wall of the heat dissipation block 305.

[0053] One end of the sliding rod 402 is fixedly connected to a spring A403 , and one end of the spring A403 is fixedly connected to the inner wall of the heat dissipation block 305 .

[0054] A pull rope 404 is fixedly connected to the outer wall of the connecting ball 401 , and one end of the pull rope 404 is fixedly connected to the outer wall of the heat dissipation block 305 .

[0055] The outer wall of the connecting ball 401 is fixedly connected with a telescopic rod 405, and the other end of the telescopic rod 405 is fixedly connected with the outer wall of another connecting ball 401;

[0056] As the rotation speed of the shaping block 301 increases to varying degrees, the inclined sliding rod 402 in the inner wall of the shaping block 301 will exert a centrifugal outward thrust on the sliding rod 402 as the shaping block 301 rotates. The sliding rod 402 is in an inclined state on the inner wall of the shaping block 301, so when the sliding rod 402 is subjected to the centrifugal thrust, it will be subjected to a component force that pushes the sliding rod 402 outward and away from the inside of the shaping block 301. Therefore, when the extrusion speed is faster, the shaping block 301 rotates faster, so that the sliding rod 402 pulls the spring The farther A403 is thrown outward after deformation, the farther it is thrown outward. When the sliding rod 402 is thrown outward, the heat sink 305 is pulled outward through the pull rope 404. The connecting ball 401 with a counterweight at one end of the sliding rod 402 makes it possible for the connecting ball 401 to pull the sliding rod 402 to overcome the elastic force of the spring A403 and the spring B406 when subjected to centrifugal force, so that the connecting ball 401 pulls the heat sink 305 to slide outward, thereby achieving the goal of throwing out the heat sink 305 when the rubber material 5 presents different temperatures at different extrusion speeds. The corresponding different distances make the higher the temperature of the rubber material 5, the larger the area of ​​the heat sink 305 that extends out and contacts the air to achieve a better heat dissipation effect. The lower the extrusion speed of the rubber material 5, the lower the temperature. Then the heat sink 305 remains within the molding block 301, and the heat dissipation effect of the molding block 301 is not improved at this time. Therefore, when the rubber material 5 is extruded at a low speed and a medium temperature, the rubber material 5 is not cooled too quickly. This is to prevent the rubber material 5 from being cooled too quickly when it could have been cooled normally, causing a large change in the internal temperature, and causing changes in internal stress, which affects the flexibility and wear resistance of the rubber material 5. When the rubber material 5 is extruded quickly and a high temperature is generated, the temperature extruded from the extruder 2 is too high, and it is necessary to consider cooling first to prevent the deformation of the quadrilateral rubber material 5. Therefore, when the extrusion speed of the extruder 2 is fast and the temperature is high, the heat dissipation is quickly dissipated by pushing out the heat sink 305. Therefore, with different extrusion speeds of the rubber material 5, the molding block 301 will achieve the optimal corresponding heat dissipation effect to ensure that the quality of the rubber material 5 after extrusion is as unaffected as possible.

[0057] And when the connecting balls 401 are centrifugally thrown out, the four connecting balls 401 are all connected on the same horizontal plane through the telescopic rod 405, so that when the connecting balls 401 and the sliding rod 402 are thrown out, one or two connecting balls 401 will not be thrown out at different distances from the other connecting balls 401, which will cause uneven force to pull the heat sink 305 and large friction to make it difficult to pull out the heat sink 305. It is more stable to pull out the heat sink 305 when the four connecting balls 401 are kept on the same horizontal plane.

[0058] Finally, after the extrusion work is completed, when the rubber extruder 1 is replaced with a different extrusion mold, the two shaping blocks 301 can be pulled apart from each other to break away from the magnetic attraction between the magnetic grooves 303. The rubber extruder 1 can then extrude conventional round rubber strips normally and complete the transportation work through the roller 6. When it is necessary to extrude the quadrilateral rubber material 5, the two shaping blocks 301 can be placed on the straightened rubber material 5 between the roller 6 and the extrusion head 2. The shaping block 301 is light in weight, but the magnetic attraction force of the magnetic groove 303 is large. When it is placed on the rubber material 5, it will not cause pressure on the rubber material 5, but it can fit tightly with the outer wall of the quadrilateral rubber material 5 to achieve shaping and heat dissipation. Therefore, the shaping block 301 can be used for multiple purposes and is convenient to carry and transport.

[0059] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An extrusion molding machine for producing automobile rubber parts, comprising a rubber extruder (1), an extrusion head (2) fixedly connected to one side of the rubber extruder (1), a rubber material (5) being arranged inside the extrusion head (2), characterized in that: A shaping cooling mechanism (3) and a roller (6) are provided on one side of the extrusion head (2); The shaping cooling mechanism (3) comprises: A shaping block (301), wherein an arc-shaped groove (302) is provided in the middle of the shaping block (301), the number of the shaping blocks (301) is two, the two shaping blocks (301) are in contact with each other, and the shaping blocks (301) are used to clamp and shape the rubber material (5); A magnetic groove (303), wherein the magnetic groove (303) is formed on the outer wall of the shaping block (301), and the two shaping blocks (301) are magnetically attracted to each other through the magnetic groove (303); a fan blade (304) is fixedly connected to one side of the shaping block (301), and the outer wall of the fan blade (304) is an inclined surface; a bearing ring (7) is rotatably connected to the outer wall of the roller (6), and the magnetic groove (303) is used to magnetically attract the two shaping blocks (301) together; The rubber material (5) inside the rubber extruder (1) is extruded from the extrusion head (2) at one end of the rubber extruder (1), and the extruded strip-shaped quadrangular rubber material (5) is pulled into the roller (6), and then the rubber strip is supported and moved by the plurality of rollers (6), and then the shaping blocks (301) are placed above and below the rubber material (5), and the two shaping blocks (301) are brought close to each other and firmly magnetically attracted together by the magnetic grooves (303) on the shaping blocks (301) due to the attraction of opposite poles; The inner wall of the shaping block (301) is provided with a sliding groove, and the inner wall of the sliding groove is slidably connected to a heat dissipation block (305); The inner wall of the heat dissipation block (305) is provided with a heat dissipation groove (306), and the outer wall of the heat dissipation block (305) is provided with a U-shaped groove (307); The shaping block (301) contacts the outer wall of the rubber material (5) through the arc-shaped groove (302), and the two shaping blocks (301) are in contact with the surface of the rubber material (5) through the arc-shaped groove (302); A heat dissipation mechanism (4) is provided inside the shaping block (301), the heat dissipation mechanism (4) comprising a connecting ball (401), the outer wall of the connecting ball (401) being fixedly connected to a sliding rod (402), the sliding rod (402) being slidably connected to the inner wall of the heat dissipation block (305); One end of the sliding rod (402) is fixedly connected to a spring A (403), and one end of the spring A (403) is fixedly connected to the inner wall of the heat dissipation block (305).

2. The extrusion molding machine for producing automotive rubber parts according to claim 1, characterized in that: A pull rope (404) is fixedly connected to the outer wall of the connection ball (401), and one end of the pull rope (404) is fixedly connected to the outer wall of the heat dissipation block (305).

3. The extrusion molding machine for producing automotive rubber parts according to claim 2, characterized in that: A telescopic rod (405) is fixedly connected to the outer wall of the connecting ball (401), and the other end of the telescopic rod (405) is fixedly connected to the outer wall of another connecting ball (401).

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