CN115990985A

CN115990985A - Extrusion molding device and process for rubber tube

Info

Publication number: CN115990985A
Application number: CN202310134886.8A
Authority: CN
Inventors: 聂锐
Original assignee: Anhui Dubang Electrical Appliance Co ltd
Current assignee: Anhui Dubang Electrical Appliance Co ltd
Priority date: 2023-02-09
Filing date: 2023-02-09
Publication date: 2023-04-21

Abstract

The utility model belongs to the technical field of rubber tube forming, and discloses an extrusion forming device and process of a rubber tube, wherein the extrusion forming device comprises a forming unit, a cutting unit and a traction unit, the cutting unit is arranged on the forming unit, and the traction unit is arranged close to the forming unit. The molding unit extrudes and molds rubber, the cutting unit cuts the extruded rubber tube, and the traction unit sends the molded rubber tube out of the device.

Description

Extrusion molding device and process for rubber tube

Technical Field

The disclosure belongs to the technical field of rubber tube forming, and in particular relates to an extrusion forming device and process for a rubber tube

Background

With the continuous development of the technology at present, for the manufacturing and forming of rubber tubes, an extrusion forming mode is mostly adopted, and the steps of the method generally include mixing materials for preparing rubber tubes, heating, carrying out open mill processing on rubber materials by an open mill, then, sending raw materials after the open mill processing into an extrusion forming machine for extrusion forming, and finally forming the rubber tubes. In the process of extrusion molding of the rubber tube, the end portion of the rubber tube may be poorly molded due to insufficient pressure.

Disclosure of Invention

Aiming at the defects of the prior art, the purpose of the present disclosure is to provide an extrusion molding device and process for rubber tubes, which solves the problem that the extrusion molding needs to be carried out on rubber raw materials and the end molding is poor in the prior art.

The purpose of the disclosure can be achieved by the following technical scheme:

the extrusion molding device for the rubber tube comprises a molding unit, a cutting unit and a traction unit, wherein the cutting unit is arranged on the molding unit, and the traction unit is arranged close to the molding unit 1;

the forming unit comprises a raw material bin, a feed inlet is formed in the raw material bin, an extrusion plate is arranged in the raw material bin, the edge of the extrusion plate is attached to the side wall of the raw material bin, the extrusion plate is slidably connected to the raw material bin, the extrusion plate is fixedly connected with a pressing block through a connecting rod, a first threaded rod penetrates through the middle of the pressing block and is in threaded connection with the pressing block, the lower end of the first threaded rod is rotatably connected to the raw material bin by taking a central line as a shaft, the upper end of the first threaded rod is fixedly connected with a first gear, the first gear is meshed with a second gear, and the second gear is fixedly connected to an output shaft of a first motor; the forming device is characterized in that the lower end of the raw material bin is fixedly connected with a forming pipe, a forming cavity is arranged in the forming pipe and is communicated with the inside of the raw material bin, a pushing plate is arranged in the forming cavity, the shape of the pushing plate is matched with that of the forming cavity and can slide in the forming cavity, one end of the pushing plate extending out of the forming cavity is penetrated by a second threaded rod, the second threaded rod is in threaded connection with the pushing plate, and the second threaded rod is fixedly connected to the output end of the second motor.

Further, the cutting unit comprises a cutting blade, the cutting blade is rotatably connected to the movable frame by taking the central line as an axis, the cutting blade is fixedly connected with a third gear, the third gear is meshed with a fourth gear, the fourth gear is fixedly connected to an output shaft of a third motor, and the third motor is fixedly arranged on the movable frame; the movable frame is connected to the swivel in a sliding manner, a fourth motor is fixedly arranged on the movable frame, an output shaft of the fourth motor is fixedly connected with a third threaded rod, and the third threaded rod penetrates through the swivel and is in threaded connection with the swivel; the rotary ring is connected to the outlet of the forming pipe in a rotary mode by taking the central line as an axis, gear teeth are arranged on the circumference of the rotary ring and meshed with a fifth gear, and the fifth gear is fixedly connected to an output shaft of a fifth motor.

Further, the traction unit comprises a fourth thread, the fourth threaded rod is rotationally connected to the base by taking the central line as an axis, one end, close to the raw material bin, of the fourth threaded rod is fixedly connected with a sixth gear, the sixth gear is meshed with a seventh gear, the seventh gear is rotationally connected to the raw material bin by taking the central line as an axis, the seventh gear is fixedly connected with a first bevel gear, the first bevel gear is meshed with a second bevel gear, the second bevel gear is rotationally connected to the raw material bin by taking the central line as an axis, the second bevel gear is fixedly connected with an eighth gear, the eighth gear is meshed with a ninth gear, and the ninth gear is fixedly connected to an output shaft of the first motor.

Further, threaded connection has the movable block on the fourth threaded rod, it has the gag lever post to run through on the movable block, rotate on the movable block and be connected with the mounting bracket, it is connected with the fifth threaded rod to rotate on the mounting bracket, fifth threaded rod both ends threaded connection has the clamping jaw, the mounting bracket runs through the clamping jaw, clamping jaw sliding connection is on the mounting bracket, fixedly connected with tenth gear in the middle of the fifth threaded rod.

Further, a first ratchet wheel and a second ratchet wheel are rotatably connected to the mounting frame, the first ratchet wheel and the second ratchet wheel are respectively arranged on two sides of the moving block, the first ratchet wheel comprises an inner gear and an outer gear, a plurality of pawls are hinged to the outer gear, a spring is connected between each pawl and the outer gear, and gear teeth are arranged on the outer side of the circumference of the outer gear; the structure of the second ratchet wheel is consistent with that of the first ratchet wheel, and the directions of the ratchets and the pawls in the second ratchet wheel are opposite to those of the ratchets and the pawls in the first ratchet wheel.

Further, a first rack is arranged above the tenth gear, the first rack is arranged below one end of the fourth threaded rod, which is close to the raw material bin, the first rack can be meshed with the tenth gear, a second rack is arranged on the base, the second gear is positioned below one end of the fourth threaded rod, which is far away from the raw material bin, and the second rack is arranged below the tenth gear and can be meshed with the tenth gear; a third rack is arranged above the first ratchet wheel, and a fourth rack is arranged below the second ratchet wheel.

Further, the one end that former feed bin was kept away from to the fourth threaded rod is connected with the third ratchet, the third ratchet is including interior wheel and outer wheel, it has a plurality of pawls to articulate on the interior wheel, be connected with the spring between pawl and the interior wheel, the interior circumference side of outer wheel is provided with the ratchet, one side fixedly connected with spacing stake that the outer wheel deviates from the fourth threaded rod, spacing stake sets up in the spout of driving lever, and spacing stake can slide in the spout of driving lever, the lower extreme fixedly connected with lacks the tooth gear of driving lever, lack tooth gear engagement on the rack slider, the up end of rack slider is provided with the gear tooth, rack slider sliding connection is on the base, rack slider and carriage fixed connection, carriage sliding connection is on the base, the both ends rotation of carriage is connected with two pivots, the pivot uses the center line to rotate on the carriage, pivot both ends fixedly connected with place the piece, in fixedly connected with eleventh gear in the pivot, in the below of eleventh gear, the both sides edge fixedly connected with fifth gear of base, fifth rack can mesh with eleventh gear.

The beneficial effects of the present disclosure are:

1. the device solves the problem of poor end part when the rubber tube is formed by an extrusion forming method, and the end part of the rubber tube is leveled.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the prior art, the drawings that are required for the description of the embodiments or the prior art will be briefly described, and it will be apparent to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

FIG. 1 is a schematic overall construction of an embodiment of the present disclosure;

FIG. 2 is a partial schematic structural view of an embodiment of the present disclosure;

FIG. 3 is a schematic view of a portion of a cutting unit according to an embodiment of the present disclosure;

FIG. 4 is a schematic illustration of a portion of the traction unit structure of an embodiment of the present disclosure;

FIG. 5 is a schematic view of a first ratchet according to an embodiment of the present disclosure;

FIG. 6 is a schematic view of a third ratchet according to an embodiment of the present disclosure;

Detailed Description

The following description of the technical solutions in the embodiments of the present disclosure will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are only some embodiments of the present disclosure, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments in this disclosure without inventive faculty, are intended to fall within the scope of this disclosure.

As shown in fig. 1-6, the device is an extrusion molding device and process of a rubber tube, and comprises a molding unit 1, a cutting unit 2 and a traction unit 3, wherein the cutting unit 2 is arranged on the molding unit 1, and the traction unit 3 is arranged close to the molding unit 1. The molding unit 1 extrudes and molds rubber, the cutting unit 2 cuts the extruded rubber tube, and the traction unit 3 sends the molded rubber tube out of the device.

For rubber tube extrusion, adopt the extruded method, carry out extrusion to rubber raw materials through forming unit 1, forming unit 1 is including former feed bin 11, be provided with the feed inlet on the former feed bin 11, be provided with stripper plate 12 in the former feed bin 11, stripper plate 12 edge laminating is on the lateral wall of former feed bin 11, stripper plate 12 sliding connection is on former feed bin 11, stripper plate 12 passes through connecting rod fixedly connected with briquetting 121, first threaded rod 122 has been run through in the middle of the briquetting 121, first threaded rod 122 and briquetting 121 threaded connection, first threaded rod 122 lower extreme uses the central line to rotate and connects on former feed bin 11, the upper end fixedly connected with first gear 123 of first threaded rod 122, first gear 123 meshes with second gear 124 mutually, second gear 124 fixed connection is on the output shaft of first motor 125. The lower extreme fixedly connected with shaping pipe 13 of former feed bin 11, be provided with the shaping chamber in the shaping pipe 13, the shaping intracavity communicates with each other with former feed bin 11 inside, be provided with push pedal 131 in the shaping intracavity, the shape and the shaping chamber phase-match of push pedal 131 can slide in the shaping intracavity, the one end that push pedal 131 stretches out the shaping chamber has run through second threaded rod 132, second threaded rod 132 and push pedal 131 threaded connection, second threaded rod 132 fixed connection is on the output of second motor 133.

When the rubber tube is formed, raw materials are fed into the raw material bin 11 through a feeding hole, a first motor 125 is started, a second gear 124 drives a first gear 123 to rotate, the first gear 123 drives a first threaded rod 122 to rotate, a pressing block 121 in threaded connection with the first threaded rod 122 moves downwards, an extruding plate 12 fixedly connected with the pressing block 121 moves downwards to extrude the raw materials from an outlet of the forming tube 13, the rubber tube is formed, when the extruding plate 12 contacts the bottom of the raw material bin 11, a second motor 133 is started to drive a second threaded rod 132 to rotate, a second threaded rod 132 drives a pushing plate 131 to move towards the inside of a forming cavity, the pushing plate 131 pushes residual rubber raw materials in the inside of the forming cavity to push the residual raw materials out of the forming cavity, and in the pushing process, the end of the rubber tube is flattened by the pushing plate 131, so that the forming work of the rubber tube is completed.

In the extrusion molding process of the rubber tube, when the extrusion plate 12 just starts to move downwards, because the filling of the raw materials is not contained, one end of the rubber tube, which extends out of the molding bin, may have a defect, the end is not smooth enough, in order to cut off the defect part of the end of the rubber tube, a cutting unit 2 is arranged, the cutting unit 2 comprises a cutting blade 21, the cutting blade 21 is rotationally connected to the movable frame 22 by taking the central line as an axis, the cutting blade 21 is fixedly connected with a third gear 211, the third gear 211 is meshed with a fourth gear 212, the fourth gear 212 is fixedly connected to the output shaft of a third motor 213, and the third motor 213 is fixedly arranged on the movable frame 22. The movable frame 22 is slidably connected to the swivel 221, a fourth motor 222 is fixedly mounted on the movable frame 22, an output shaft of the fourth motor 222 is fixedly connected with a third threaded rod 223, and the third threaded rod 223 penetrates through the swivel 221 and is in threaded connection with the swivel 221. The swivel 221 is rotatably connected to the outlet of the forming tube 13 by taking the central line as an axis, gear teeth are arranged on the circumference of the swivel 221 and meshed with a fifth gear 224, and the fifth gear 224 is fixedly connected to the output shaft of a fifth motor 225.

When cutting is required, the third motor 213 is started, the fourth gear 212 drives the third gear 211 and the cutting blade 21 to rotate, the first motor 125 is stopped, the fourth motor 222 is started, the movable frame 22 is moved towards the center of the rotary ring 221 through rotation of the third threaded rod 223, the cutting blade 21 is in contact with the rubber tube, the cutting blade 21 cuts the rubber tube, the fifth motor 225 is started, the fifth gear 224 drives the rotary ring 221 to rotate, the rotary ring 221 moves with the movable frame 22 to cut the circumference of the rubber tube, and the defective part of the rubber tube is cut. When the cutting is completed, the third motor 213 and the fifth motor 225 are stopped, the fourth motor 222 is reversed to move the movable frame 22 out, and the first motor 125 is started to continue the pressing.

After the rubber tube is extruded and formed, the rubber tube feeding device is required to be provided with the traction unit 3, the traction unit 3 comprises a fourth threaded rod 31, the fourth threaded rod 31 is rotationally connected onto the base by taking the central line as a shaft, one end, close to the raw material bin 11, of the fourth threaded rod 31 is fixedly connected with a sixth gear 311, the sixth gear 311 is meshed with a seventh gear 312, the seventh gear 312 is rotationally connected onto the raw material bin 11 by taking the central line as a shaft, the seventh gear 312 is fixedly connected with a first bevel gear 313, the first bevel gear 313 is meshed with a second bevel gear 314, the second bevel gear 314 is rotationally connected onto the raw material bin 11 by taking the central line as a shaft, the second bevel gear 314 is fixedly connected with an eighth gear 315, the eighth gear 315 is meshed with a ninth gear 316, and the ninth gear 316 is fixedly connected onto an output shaft of the first motor 125.

The utility model discloses a movable block 32 is connected with to the last threaded connection of fourth threaded rod 31, it has the gag lever post to run through on the movable block 32, rotate on the movable block 32 and be connected with mounting bracket 322, rotate on the mounting bracket 322 and be connected with fifth threaded rod 323, fifth threaded rod 323 both ends threaded connection has clamping jaw 324, mounting bracket 322 runs through clamping jaw 324, clamping jaw 324 sliding connection is on mounting bracket 322, fixedly connected with tenth gear 325 in the middle of the fifth threaded rod 323, rotate on the mounting bracket 322 and be connected with first ratchet 326 and second ratchet 327, first ratchet 326 and second ratchet 327 are installed respectively in movable block 32 both sides, first ratchet 326 is including internal gear 327 and external gear 328, articulated on the external gear 328 have a plurality of pawls, be connected with the spring between pawl and the external gear 328, the circumference outside of external gear 328 is provided with the gear tooth. The second ratchet 327 is configured to be identical to the first ratchet 326, and the orientation of the ratchet teeth and pawl in the second ratchet 327 is opposite to the orientation of the ratchet teeth and pawl in the first ratchet 326. The first rack 329 is arranged above the tenth gear 325, the first rack 329 is arranged below one end of the fourth threaded rod 31 close to the raw material bin 11, the first rack 329 can be meshed with the tenth gear 325, the second rack 330 is arranged on the base, the second gear 124 is located below one end of the fourth threaded rod 31 far away from the raw material bin 11, and the second rack 330 is arranged below the tenth gear 325 and can be meshed with the tenth gear 325. A third rack 331 is provided above the first ratchet 326, and a fourth rack 332 is provided below the second ratchet 327.

When the rubber tube is used, the rubber tube stretches out from the outlet of the forming tube 13, the first motor 125 drives the ninth gear 316 to rotate, the ninth gear 316 drives the eighth gear 315 to rotate with the second bevel gear 314, the second bevel gear 314 drives the first bevel gear 313 to rotate with the seventh gear 312, the seventh gear 312 drives the sixth gear 311 to rotate with the fourth threaded rod 31, the fourth threaded rod 31 rotates to enable the moving block 32 to move away from the raw material bin 11, the tenth gear 325 is meshed with the first rack 329 in the moving process, the tenth gear 325 rotates to drive the fifth threaded rod 323 to rotate, the fifth threaded rod 323 rotates to enable the clamping jaws 324 with two ends in rotating connection to move in opposite directions, the clamping jaws 324 clamp the rubber tube, the tenth gear 325 is disengaged from the first rack 329 to pull the rubber tube to move outwards, and the moving block 32 moves away from the raw material bin 11. During movement, the second ratchet 327 is engaged with the second rack 330, the external gear 328 cannot rotate the internal gear 327, the first ratchet 326 is engaged with the first rack 329, and the external gear 328 cannot rotate the internal gear 327. To reach the end point, the tenth gear 325 is engaged with the second rack 330, and the tenth gear 325 is rotated in the opposite direction, so that the fifth threaded rod 323 moves the two jaws 324 in the opposite direction, and the jaws 324 release the rubber tube. The first motor 125 is reversed and the carriage is repositioned to await the next gripping.

For the rubber tube removing device which is formed, one end of the fourth threaded rod 31 far away from the raw material bin 11 is connected with a third ratchet wheel 34, the third ratchet wheel 34 comprises an inner wheel 341 and an outer wheel 342, a plurality of pawls are hinged to the inner wheel 341, a spring is connected between the pawls and the inner wheel 341, ratchets are arranged on the inner circumference side of the outer wheel 342, one side of the outer wheel 342 far away from the fourth threaded rod 31 is fixedly connected with a limit pile 343, the limit pile 343 is arranged in a sliding groove of a deflector rod 344, the limit pile 343 can slide in the sliding groove of the deflector rod 344, the lower end of the deflector rod 344 is fixedly connected with a tooth-missing gear, the tooth-missing gear is meshed with a rack slider 345, the upper end face of the rack slider 345 is provided with gear teeth, the rack slider 345 is slidingly connected to a base, two rotating shafts 347 are rotatably connected to the two ends of the sliding frame 346, the rotating shafts 347 rotate on the sliding frame 346 by taking a central line as a shaft, the two ends 347 are fixedly connected with a gear wheel, the eleventh rotating shaft is fixedly connected to the eleventh rotating shaft and the eleventh rotating shaft is fixedly connected to the eleventh rotating shaft 348, and the eleventh rotating shaft is fixedly connected to the eleventh rotating shaft is fixedly connected with the eleventh side of the eleventh rotating shaft 348.

When the clamping jaw 324 clamps the rubber tube to move outwards, the inner wheel 341 of the second ratchet 327 cannot drive the outer wheel 342, when the clamping jaw 324 puts down the rubber tube, the rubber tube stays on the placement block, when the fourth threaded rod 31 rotates reversely, the inner wheel 341 of the second ratchet 327 drives the outer wheel 342 to rotate, the limiting pile 343 on the outer wheel 342 rotates around the rotation center of the second ratchet 327, the limiting pile 343 enables the deflector 344 to move, the deflector 344 drives the rack slider 345 to do linear reciprocating motion, the rack slider 345 drives the sliding frame 346 to move, the sliding frame 346 sequentially moves towards two ends, when the sliding block moves the rubber tube towards the edge, the moving block 32 moves towards the raw material bin 11, the first ratchet 326 is meshed with the first rack 329, the ring gear is driven to rotate, the inner gear ring rotates to enable the installation frame 322 to integrally rotate, the clamping jaw 324 gradually rotates to be lifted, then the second ratchet 327 is meshed with the second rack 330, and the outer gear 328 drives the inner gear 327 to rotate, and the installation frame 322 is put down to return to the original position. When the slider moves to the base edge, the eleventh gear 348 is engaged with the fifth rack 349, the eleventh gear 348 drives the rotation shaft 347 to rotate, the rotation shaft 347 rotates, the placement block is turned over, and the rubber tube falls off.

The device comprises the following processes: raw materials are fed into raw material bin 11 through the feed inlet, first motor 125 starts, second gear 124 drives first gear 123 to rotate, first gear 123 drives first threaded rod 122 to rotate, briquetting 121 on first threaded rod 122 moves down, stripper plate 12 with briquetting 121 fixed connection moves down and extrudes the raw materials from the export of shaping pipe 13, the rubber tube shaping, when stripper plate 12 contacts raw material bin 11 bottom, second motor 133 starts, drive second threaded rod 132 rotates, second threaded rod 132 drives push pedal 131 to the inside removal of shaping intracavity, push pedal 131 promotes the inside remaining rubber raw materials of shaping intracavity, push residual raw materials out the shaping intracavity, in the promotion process, push pedal 131 makes the tip of rubber tube become level, accomplish the shaping work of rubber tube.

The rubber tube stretches out from the outlet of the forming tube 13, the first motor 125 drives the ninth gear 316 to rotate, the ninth gear 316 drives the eighth gear 315 to rotate with the second bevel gear 314, the second bevel gear 314 drives the first bevel gear 313 to rotate with the seventh gear 312, the seventh gear 312 drives the sixth gear 311 to rotate with the fourth threaded rod 31, the fourth threaded rod 31 rotates to enable the moving block 32 to move away from the raw material bin 11, the tenth gear 325 is meshed with the first rack 329 in the moving process, the tenth gear 325 rotates to drive the fifth threaded rod 323 to rotate, the fifth threaded rod 323 rotates to enable the clamping jaws 324 with two ends in rotating connection to move in opposite directions, the clamping jaws 324 clamp the rubber tube, the tenth gear 325 is disengaged from the first rack 329, the rubber tube is pulled to move outwards, and the moving block 32 moves away from the raw material bin 11. During movement, the second ratchet 327 is engaged with the second rack 330, the external gear 328 cannot rotate the internal gear 327, the first ratchet 326 is engaged with the first rack 329, and the external gear 328 cannot rotate the internal gear 327. To reach the end point, the tenth gear 325 is engaged with the second rack 330, and the tenth gear 325 is rotated in the opposite direction, so that the fifth threaded rod 323 moves the two jaws 324 in the opposite direction, and the jaws 324 release the rubber tube. When the first motor 125 is reversed and the clamping jaw 324 clamps the rubber tube to move outwards, the inner wheel 341 of the second ratchet wheel 327 cannot drive the outer wheel 342, when the clamping jaw 324 puts down the rubber tube, the rubber tube is stopped on the placing block, when the fourth threaded rod 31 is reversed and the inner wheel 341 of the second ratchet wheel 327 drives the outer wheel 342 to rotate, the limiting pile 343 on the outer wheel 342 rotates around the rotation center of the second ratchet wheel 327, the limiting pile 343 enables the deflector rod 344 to move, the deflector rod 344 drives the rack slider 345 to do linear reciprocating motion, the rack slider 345 drives the sliding frame 346 to move, the sliding frame 346 sequentially moves towards two ends, when the sliding block moves the rubber tube towards the edge, the moving block 32 moves towards the raw material bin 11, the first ratchet wheel 326 is meshed with the first rack 329, the external ring gear ring rotates to enable the installation frame 322 to integrally rotate, the clamping jaw 324 gradually rotates to be lifted, then the second ratchet wheel 327 is meshed with the second rack 330, the external gear 328 drives the internal gear 327 to rotate, and the installation frame 322 is put down to return to the original position. When the slider moves to the base edge, the eleventh gear 348 is engaged with the fifth rack 349, the eleventh gear 348 drives the rotation shaft 347 to rotate, the rotation shaft 347 rotates, the placement block is turned over, and the rubber tube falls off.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing has shown and described the basic principles, principal features, and advantages of the present disclosure. It will be understood by those skilled in the art that the present disclosure is not limited to the embodiments described above, which have been described in the foregoing and description merely illustrates the principles of the disclosure, and that various changes and modifications may be made therein without departing from the spirit and scope of the disclosure, which is defined in the appended claims.

Claims

1. The extrusion molding device for the rubber tube is characterized by comprising a molding unit (1), a cutting unit (2) and a traction unit (3), wherein the cutting unit (2) is arranged on the molding unit (1), and the traction unit (3) is arranged close to the molding unit (1);

the forming unit (1) comprises a raw material bin (11), a feed inlet is formed in the raw material bin (11), an extrusion plate (12) is arranged in the raw material bin (11), the edge of the extrusion plate (12) is attached to the side wall of the raw material bin (11), the extrusion plate (12) is slidably connected to the raw material bin (11), the extrusion plate (12) is fixedly connected with a pressing block (121) through a connecting rod, a first threaded rod (122) penetrates through the middle of the pressing block (121), the first threaded rod (122) is in threaded connection with the pressing block (121), the lower end of the first threaded rod (122) is rotationally connected to the raw material bin (11) by taking a central line as a shaft, the upper end of the first threaded rod (122) is fixedly connected with a first gear (123), the first gear (123) is meshed with a second gear (124), and the second gear (124) is fixedly connected to an output shaft of a first motor (125). The forming machine is characterized in that the lower end of the raw material bin (11) is fixedly connected with a forming tube (13), a forming cavity is formed in the forming tube (13) and is communicated with the inside of the raw material bin (11), a pushing plate (131) is arranged in the forming cavity, the shape of the pushing plate (131) is matched with that of the forming cavity and can slide in the forming cavity, one end of the pushing plate (131) extending out of the forming cavity is penetrated by a second threaded rod (132), the second threaded rod (132) is in threaded connection with the pushing plate (131), and the second threaded rod (132) is fixedly connected to the output end of the second motor (133).

2. The extrusion molding device of a rubber tube according to claim 1, wherein the cutting unit (2) comprises a cutting blade (21), the cutting blade (21) is rotatably connected to the movable frame (22) by taking a central line as an axis, the cutting blade (21) is fixedly connected with a third gear (211), the third gear (211) is meshed with a fourth gear (212), the fourth gear (212) is fixedly connected to an output shaft of a third motor (213), and the third motor (213) is fixedly installed on the movable frame (22); the movable frame (22) is slidably connected to the swivel (221), a fourth motor (222) is fixedly arranged on the movable frame (22), an output shaft of the fourth motor (222) is fixedly connected with a third threaded rod (223), and the third threaded rod (223) penetrates through the swivel (221) and is in threaded connection with the swivel (221); the rotary ring (221) is rotatably connected to the outlet of the forming pipe (13) by taking the central line as an axis, gear teeth are arranged on the circumference of the rotary ring (221) and meshed with a fifth gear (224), and the fifth gear (224) is fixedly connected to an output shaft of a fifth motor (225).

3. The extrusion molding device of a rubber tube according to claim 2, wherein the traction unit (3) comprises a fourth thread (31), the fourth thread (31) is rotatably connected to the base with a central line as an axis, one end of the fourth thread (31) close to the raw material bin (11) is fixedly connected with a sixth gear (311), the sixth gear (311) is meshed with a seventh gear (312), the seventh gear (312) is rotatably connected to the raw material bin (11) with the central line as an axis, the seventh gear (312) is fixedly connected with a first bevel gear (313), the first bevel gear (313) is meshed with a second bevel gear (314), the second bevel gear (314) is rotatably connected to the raw material bin (11) with the central line as an axis, the second bevel gear (314) is fixedly connected with an eighth gear (315), the eighth gear (315) is meshed with a ninth gear (316), and the ninth gear (316) is fixedly connected to the first output shaft (125).

4. A rubber tube extrusion molding device according to claim 3, wherein the fourth thread (31) is connected with a moving block (32) through the moving block (32), the moving block (32) is connected with a mounting frame (322) through rotation, the mounting frame (322) is connected with a fifth threaded rod (323) through rotation, two ends of the fifth threaded rod (323) are connected with clamping jaws (324) through the mounting frame (322), the clamping jaws (324) are connected to the mounting frame (322) in a sliding manner, and a tenth gear (325) is fixedly connected to the middle of the fifth threaded rod (323).

5. The extrusion molding device of a rubber tube according to claim 4, wherein a first ratchet wheel (326) and a second ratchet wheel (327) are rotatably connected to the mounting frame (322), the first ratchet wheel (326) and the second ratchet wheel (327) are respectively installed at two sides of the moving block (32), the first ratchet wheel (326) comprises an inner gear (327) and an outer gear (328), a plurality of pawls are hinged to the outer gear (328), a spring is connected between the pawls and the outer gear (328), and gear teeth are arranged at the outer side of the circumference of the outer gear (328); the structure of the second ratchet wheel (327) is consistent with that of the first ratchet wheel (326), and the directions of the ratchets and the pawls in the second ratchet wheel (327) are opposite to those of the ratchets and the pawls in the first ratchet wheel (326).

6. The extrusion molding device of a rubber tube according to claim 5, wherein a first rack (329) is disposed above the tenth gear (325), the first rack (329) is disposed below one end of the fourth threaded (31) rod near the raw material bin (11), the first rack (329) can be meshed with the tenth gear (325), a second rack (330) is disposed on the base, the second gear (124) is disposed below one end of the fourth threaded (31) rod far from the raw material bin (11), and the second rack (330) is disposed below the tenth gear (325) and can be meshed with the tenth gear (325); a third rack (331) is provided above the first ratchet (326), and a fourth rack (332) is provided below the second ratchet (327).

7. The extrusion molding device of rubber tube as set forth in claim 6, wherein one end of the fourth threaded (31) rod far away from the raw material bin (11) is connected with a third ratchet wheel (34), the third ratchet wheel (34) comprises an inner wheel (341) and an outer wheel (342), a plurality of pawls are hinged on the inner wheel (341), a spring is connected between the pawls and the inner wheel (341), a ratchet is arranged on the inner circumference side of the outer wheel (342), one side of the outer wheel (342) far away from the rod of the fourth threaded (31) is fixedly connected with a limit pile (343), the limit pile (343) is arranged in a chute of a deflector rod (344), the limit pile (343) can slide in the chute of the deflector rod (344), the lower end of the deflector rod (344) is fixedly connected with a tooth-missing gear, the tooth gear is meshed on a rack slider (345), the upper end face of the rack slider (345) is provided with gear teeth, the rack slider (345) is slidingly connected on a base, the rack slider (345) and a sliding frame (345) are fixedly connected with two shafts (346) at two ends of the rotating shafts (346) which are fixedly connected with the rotating shafts (346), the rotating shaft (347) is fixedly connected with an eleventh gear (348), and under the eleventh gear (348), two side edges of the base are fixedly connected with fifth racks (349), and the fifth racks (349) can be meshed with the eleventh gear (348).

8. The extrusion molding apparatus of claim 7, wherein the apparatus performs extrusion molding of the rubber tube by the process of:

raw materials are fed into a raw material bin (11) through a feed inlet, a first motor (125) is started, a second gear (124) drives a first gear (123) to rotate, the first gear (123) drives a first threaded rod (122) to rotate, a pressing block (121) which is in threaded connection with the first threaded rod (122) moves downwards, an extrusion plate (12) fixedly connected with the pressing block (121) moves downwards to extrude the raw materials from an outlet of a forming tube (13), the rubber tube is formed, when the extrusion plate (12) contacts the bottom of the raw material bin (11), a second motor (133) is started to drive a second threaded rod (132) to rotate, the second threaded rod (132) drives a pushing plate (131) to move into a forming cavity, the pushing plate (131) pushes residual rubber raw materials out of the forming cavity, and in the pushing process, the end part of the rubber tube is flattened by the pushing plate (131), and the forming work of the rubber tube is completed;

when cutting is needed, the third motor (213) is started, the fourth gear (212) drives the third gear (211) and the cutting blade (21) to rotate, the first motor (125) is stopped, the fourth motor (222) is started, the movable frame (22) is enabled to move towards the center of the rotary ring (221) through rotation of the third threaded rod (223), the cutting blade (21) is enabled to contact with the rubber tube, the cutting blade (21) is used for cutting the rubber tube, the fifth motor (225) is started, the fifth gear (224) is used for driving the rotary ring (221) to rotate, the rotary ring (221) drives the movable frame (22) to move, the circumference of the rubber tube is cut, and the defective part of the rubber tube is cut; after the cutting is finished, the third motor (213) and the fifth motor (225) are stopped, the fourth motor (222) rotates reversely to move out the movable frame (22), and the first motor (125) is started to continue extrusion;

the rubber pipe extends out of an outlet of the forming pipe (13), the first motor (125) drives the ninth gear (316) to rotate, the ninth gear (316) drives the eighth gear (315) to rotate with the second bevel gear (314), the second bevel gear (314) drives the first bevel gear (313) to rotate with the seventh gear (312), the seventh gear (312) drives the sixth gear (311) to rotate with a fourth threaded (31) rod, the fourth threaded (31) rod rotates to enable the moving block (32) to move away from the raw material bin (11), the tenth gear (325) is meshed with the first rack (329) in the moving process, the tenth gear (325) rotates to drive the fifth threaded rod (323) to rotate, the fifth threaded rod (323) rotates to enable clamping jaws (324) with two ends in rotary connection to move towards each other, the clamping jaws (324) clamp the rubber pipe, the tenth gear (325) is meshed with the first rack (329) in a disconnected mode, the rubber pipe is pulled to move outwards, and the moving block (32) moves towards the direction away from the raw material bin (11); during the moving process, the second ratchet wheel (327) is meshed with the second rack (330), the external gear (328) cannot rotate the internal gear (327), the first ratchet wheel (326) is meshed with the first rack (329), and the external gear (328) cannot rotate the internal gear (327); when the end point is reached, the tenth gear (325) is meshed with the second rack (330), the tenth gear (325) reversely rotates to enable the fifth threaded rod (323) to move the two clamping jaws (324) oppositely, and the clamping jaws (324) release the rubber tube; when the first motor (125) is reversed, the clamping jaw (324) clamps the rubber tube to move outwards, the inner wheel (341) of the second ratchet wheel (327) cannot drive the outer wheel (342), when the clamping jaw (324) puts down the rubber tube, the rubber tube is stopped on the placing block, the inner wheel (341) of the second ratchet wheel (327) drives the outer wheel (342) to rotate when the rod of the fourth thread (31) is reversed, the limit pile (343) on the outer wheel (342) rotates around the rotation center of the second ratchet wheel (327), the limit pile (343) enables the shifting rod (344) to move, the shifting rod (344) drives the rack sliding block (345) to do linear reciprocating motion, the rack sliding block (345) drives the sliding frame (346) to move towards two ends, when the sliding block moves the rubber tube towards the edge, the moving block (32) moves towards the original storage bin (11), the first ratchet wheel (326) is meshed with the first rack (329), the annular ring is driven to rotate, the inner gear ring rotates to enable the installation frame (322) to rotate integrally, the clamping jaw (324) is gradually rotated upwards, and then the second ratchet wheel (327) is gradually lifted up to move back to the second rack (327) to the original position (328) to rotate; when the sliding block moves to the edge of the base, the eleventh gear (348) is meshed with the fifth rack (349), the eleventh gear (348) drives the rotating shaft (347) to rotate, the rotating shaft (347) rotates, the placing block overturns, and the rubber tube falls off.