An anti-sinking extrusion type rubber injection molding machine

Abstract

The present invention discloses an anti-sinking extrusion type rubber injection molding machine, which relates to the technical field of rubber injection molding machines and includes a conveying pipeline. The output port of the conveying pipeline injects liquid rubber into the mold. One side of the conveying pipeline is driven by a rotating shaft. The upper end of the conveying pipeline inputs solid rubber into the interior of the conveying pipeline through a feeding groove, and the lower end of the conveying pipeline is supported by a base. The beneficial effect of the present invention is that during the working process of the injection molding device, during the recovery process of the injection pipe core, the movable head is driven to rotate in the reverse direction, and the anti-sinking head is used to stir the rubber solution that has settled inside the pipeline. At the same time, during the reverse movement of the movable head, the moving head will be squeezed. The extrusion columns on the moving head squeeze the pressure columns one by one, causing the scraping strip to rotate and scrape the discharge port, avoiding the situation of blockage at the discharge port.

Description

Technical Field

[0001] The present invention relates to the technical field of rubber injection molding machines, and particularly to an anti-settling extrusion type rubber injection molding machine. Background Art

[0002] In industrial production, the demand for plastics is very large. Therefore, the requirements for plastic production equipment are getting higher and higher to ensure high production efficiency and quality. The existing plastic production equipment is an injection molding machine, among which the horizontal injection molding machine is the most commonly used one. The injection molding machine uses a screw to convey the material added at one end of the barrel to the other end for injection molding, and the middle part of the barrel heats and melts the material. Although the injection molding machine is widely used, there are still some problems.

[0003] Some rubber materials may settle due to their physical properties (such as density, particle size, etc.) during long-term static state or poor flow, resulting in uneven materials during the injection molding process; when the equipment heating is insufficient, the fluidity of the rubber material will decrease, resulting in some materials precipitating in the conveying pipeline; when the rubber material feeding is uneven or the feeding speed does not match, it may cause the material density in some areas to increase; at the same time, the end of the injection molding machine is provided with a head structure, and the discharge hole of the head is small. When the injection molding machine stops, due to the decrease in the internal temperature, the material remaining in the discharge hole of the head is prone to dry and block. If not cleaned in time, it will cause the next operation. And most of the heads of the injection molding machines in the prior art are integral structures, and the small discharge holes make it difficult to clean. Summary of the Invention

[0004] In this part, as well as in the abstract and title of the present application, some simplifications or omissions may be made to avoid obscuring the purpose of this part, the abstract, and the title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the problems existing in the above or the prior art, the present invention is proposed.

[0006] Therefore, the purpose of the present invention is to provide an anti-settling extrusion type rubber injection molding machine, which solves the problem of blockage of the discharge port caused by the settlement of materials in the conveying pipeline.

[0007] To solve the above technical problems, the present invention provides the following technical solution: an anti-settling extrusion type rubber injection molding machine, which includes a conveying pipeline. The output port of the conveying pipeline injects liquid rubber into the mold. One side of the conveying pipeline is driven by a rotating shaft. The upper end of the conveying pipeline inputs solid rubber into the interior of the conveying pipeline through a feeding groove. The lower end of the conveying pipeline is supported by a base.

[0008] The conveying pipeline includes a heating pipe. A feeding pipe core is arranged inside the conveying pipeline. A reverse stirring mechanism is arranged in the middle of the feeding pipe core, and an anti-blocking mechanism is arranged at the front end of the feeding pipe core. Both the anti-blocking mechanism and the reverse stirring mechanism are arranged inside the heating pipe. The feeding pipe core passes through the reverse stirring mechanism.

[0009] The feeding pipe core includes a core column. A conical extrusion head is arranged at the front end of the core column. A first threaded head is arranged on the feeding pipe core, and an opening is arranged at the lower end of the first threaded head.

[0010] The reverse stirring mechanism includes a second gear. A threaded pipe is arranged inside the second gear. The inner side of the threaded pipe is meshed with a second threaded head on the outer side of a movable head. An anti-settling head is arranged on the bottom surface of the inner side of the movable head. A sliding head is arranged at the outer edge of the front end of the movable head. The feeding pipe core passes through the inside of the movable head.

[0011] The heating pipe includes a front pipe. A sliding thread groove is arranged on the inner wall of the front pipe. The sliding head is arranged in the sliding thread groove.

[0012] The pitch of the sliding thread groove, the first threaded head and the second threaded head is the same. The thread direction of the sliding thread groove is the same as that of the second threaded head, and the thread directions of the first threaded head and the second threaded head are opposite.

[0013] As a preferred solution of the anti-settling extrusion type rubber injection molding machine of the present invention, wherein: the heating pipe further includes a rear pipe. The second gear is arranged between the front pipe and the rear pipe.

[0014] An outlet is arranged at the output end of the front pipe. An extrusion groove is arranged inside the front pipe near the outlet. A pushing port is arranged inside the extrusion groove. A limiting protrusion is arranged at one end of the pushing port facing the outlet.

[0015] As a preferred solution of the anti-settling extrusion type rubber injection molding machine of the present invention, wherein: the anti-blocking mechanism includes a rotating head. A through port is arranged in the middle of the rotating head. The caliber of the through port is the same as that of the outlet. One end of a scraping strip is connected to the inner wall of the through port, and the scraping strip also fits with the inner wall of the outlet. A limiting groove is arranged on the outer side of the through port. The limiting protrusion is arranged in the limiting groove. The rotating head is arranged at one end of the extrusion groove near the outlet. A number of pressure columns with different lengths are arranged on one side of the rotating head, and the pressure columns are distributed in a circular array on the rotating head. A number of extrusion columns are arranged on one side of the pressure columns, and the extrusion columns are connected to a moving head. The position of the rotating head in the extrusion groove cannot be changed, but the rotating head can rotate. The extrusion columns on one side of the moving head are arranged in the extrusion groove, and the outer side of the moving head is connected to the inner wall of the front pipe through a spring.

[0016] As a preferred solution of the anti-settlement extrusion rubber injection molding machine of the present invention, wherein: one end of the rotating shaft is connected to the output end of the reduction motor, and the other end is connected to the third gear through a one-way damping bearing, and the rotating shaft is meshed with the second gear through the first gear;

[0017] There is transmission between the third gear and the fourth gear, one side of the fourth gear is connected to the electric push rod, and the movable end of the electric push rod is connected to the rear end of the core column.

[0018] As a preferred solution of the anti-settlement extrusion rubber injection molding machine of the present invention, wherein: the upper end of the base is provided with a first support rod and a second support rod, the first support rod supports the conveying pipeline, and the second support rod supports the third gear and the fourth gear.

[0019] As a preferred solution of the anti-settlement extrusion rubber injection molding machine of the present invention, wherein: the inner diameter of the rear pipe is the same as the inner diameter of the movable head.

[0020] As a preferred solution of the anti-settlement extrusion rubber injection molding machine of the present invention, wherein: the opening can accommodate the anti-settlement head to pass through.

[0021] The beneficial effects of the present invention: During the working process of the injection molding device of the present invention, during the recovery process of the injection pipe core, the movable head is driven to rotate in the reverse direction, and the anti-settlement head is used to stir the rubber solution that has settled inside the pipeline. At the same time, during the reverse movement of the movable head, the movable head will be squeezed, and the extrusion columns on the movable head will squeeze the compression columns one by one, so that the scraping strip rotates to scrape the discharge port, avoiding the situation of blockage at the discharge port;

[0022] The device effectively solves the problem of blockage at the discharge port caused by material settlement in the conveying pipeline, and cooperates with the work of the injection pipe core to achieve the effect of full-process anti-settlement and anti-blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0024] Figure 1 It is an overall schematic diagram of the anti-settlement extrusion rubber injection molding machine;

[0025] Figure 2 It is one of the internal structure schematic diagrams of the anti-settlement extrusion rubber injection molding machine;

[0026] Figure 3The second internal structure schematic diagram of the anti-sinking extrusion rubber injection molding machine;

[0027] Figure 4 The schematic diagram of the reverse stirring mechanism of the anti-sinking extrusion rubber injection molding machine;

[0028] Figure 5 The schematic diagram of the anti-blocking mechanism of the anti-sinking extrusion rubber injection molding machine;

[0029] Figure 6 The schematic diagram of the heating pipe of the anti-sinking extrusion rubber injection molding machine.

[0030] Markings in the figure:

[0031] 100, conveying pipeline; 200, rotating shaft; 300, feeding trough; 400, mold; 500, base; 101, heating pipe; 102, injection pipe core; 103, reverse stirring mechanism; 104, anti-blocking mechanism; front pipe 101a,; 101b, rear pipe; 101c, sliding thread groove; 101d, extrusion groove; 101e, injection port; 101f, limit projection; 101g, discharge port; 102a, core column; 102b, first thread head; 102c, opening; 103a, second gear; 103b, threaded pipe; 103c, movable head; 103d, sliding head; 103e, anti-sinking head; 104a, rotating head; 104b, moving head; 104c, compression column; 104d, through hole; 104e, limit groove; 104f, scraping bar; 104g, extrusion column; 201, first gear; 202, reduction motor; 203, third gear; 204, fourth gear; 205, electric push rod; 501, first support rod; 502, second support rod. Detailed implementation manners

[0032] To make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention will be given in conjunction with the accompanying drawings of the specification.

[0033] In the following description, many specific details are set forth to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0034] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present invention. The appearances of "in one embodiment" in different places in this specification do not all refer to the same embodiment, nor are they separate or selectively exclusive embodiments from other embodiments.

[0035] Embodiment: Refer toFigures 1 to 6 , which is the first embodiment of the present invention. This embodiment provides an anti-sinking extrusion rubber injection molding machine, which includes a conveying pipeline 100. The output port of the conveying pipeline 100 injects liquid rubber into the mold 400. One side of the conveying pipeline 100 is driven by a rotating shaft 200. The upper end of the conveying pipeline 100 inputs solid rubber into the interior of the conveying pipeline 100 through a feeding groove 300. The lower end of the conveying pipeline 100 is supported by a base 500;

[0036] The conveying pipeline 100 includes a heating pipe 101. A feeding pipe core 102 is arranged inside the conveying pipeline 100. A reverse stirring mechanism 103 is arranged in the middle of the feeding pipe core 102. An anti-blocking mechanism 104 is arranged at the front end of the feeding pipe core 102; both the anti-blocking mechanism 104 and the reverse stirring mechanism 103 are arranged inside the heating pipe 101; the feeding pipe core 102 passes through the reverse stirring mechanism 103;

[0037] The feeding pipe core 102 includes a core column 102a. A conical extrusion head is arranged at the front end of the core column 102a. A first thread head 102b is arranged on the feeding pipe core 102. An opening 102c is arranged at the lower end of the first thread head 102b;

[0038] The reverse stirring mechanism 103 includes a second gear 103a. A threaded pipe 103b is arranged inside the second gear 103a. The inner side of the threaded pipe 103b meshes with the second thread head 103f on the outer side of the movable head 103c. An anti-sinking head 103e is arranged on the bottom surface of the inner side of the movable head 103c. A sliding head 103d is arranged at the outer edge of the front end of the movable head 103c; the feeding pipe core 102 passes through the interior of the movable head 103c;

[0039] The heating pipe 101 includes a front pipe 101a. A sliding thread groove 101c is arranged on the inner wall of the front pipe 101a. The sliding head 103d is arranged in the sliding thread groove 101c.

[0040] The pitch of the sliding thread groove 101c, the first thread head 102b and the second thread head 103f is the same. The thread direction of the sliding thread groove 101c is the same as that of the second thread head 103f. The thread directions of the first thread head 102b and the second thread head 103f are opposite.

[0041] It should be noted that the sliding thread groove 101c, the first thread head 102b and the second thread head 103f in the figure are only examples, and the description in the text shall prevail.

[0042] Preferably, the first gear 201 drives the second gear 103a to rotate. The second gear 103a drives the movable head 103c to rotate through the threaded tube 103b. At the same time, during the rotation, the sliding head 103d moves along the sliding threaded groove 101c. While rotating, the movable head 103c moves along the sliding threaded groove 101c towards the anti-blocking mechanism 104. During the rotation, the anti-sinking head 103e and the first threaded head 102b are staggered from each other and do not interfere with each other.

[0043] The heating tube 101 further includes a rear tube 101b, and the second gear 103a is disposed between the front tube 101a and the rear tube 101b;

[0044] The output end of the front tube 101a is provided with a discharge port 101g. An extrusion groove 101d is provided inside one end of the front tube 101a near the discharge port 101g. A pushing port 101e is provided inside the extrusion groove 101d. A limiting protrusion 101f is provided at one end of the pushing port 101e facing the discharge port 101g.

[0045] The anti-blocking mechanism 104 includes a rotating head 104a. A through port 104d is provided in the middle of the rotating head 104a. The diameter of the through port 104d is the same as that of the discharge port 101g. One end of a scraping strip 104f is connected to the inner wall of the through port 104d, and the scraping strip 104f also fits against the inner wall of the discharge port 101g; A limiting groove 104e is provided outside the through port 104d, and the limiting protrusion 101f is placed in the limiting groove 104e. The rotating head 104a is placed at one end of the extrusion groove 101d near the discharge port 101g. A plurality of compression columns 104c of different lengths are provided on one side of the rotating head 104a. The compression columns 104c are annularly and integrally distributed on the rotating head 104a. A plurality of extrusion columns 104g are provided on one side of the compression columns 104c. The extrusion columns 104g are connected to the moving head 104b. The position of the rotating head 104a in the extrusion groove 101d cannot be changed, but the rotating head 104a can rotate. The extrusion columns 104g on one side of the moving head 104b are placed in the extrusion groove 101d. The outside of the moving head 104b is connected to the inner wall of the front tube 101a through a spring.

[0046] Preferably, both the compression columns 104c and the extrusion columns 104g are columnar bars of different lengths with inclined surfaces at their ends. When the extrusion column 104g squeezes the compression column 104c, the longest columnar bar in the extrusion column 104g squeezes the shortest columnar bar in the compression column 104c. At this time, the rotating head 104a rotates a certain angle. After that, the second-longest columnar bar in the extrusion column 104g starts to contact and squeeze the second-shortest columnar bar in the compression column 104c, and the rotating head 104a rotates a certain angle again, and so on. Finally, the moving head 104b is squeezed to the maximum movement track, and the anti-blocking mechanism 104 completes one full rotation.

[0047] One end of the rotating shaft 200 is connected to the output end of the reduction motor 202, and the other end is connected to the third gear 203 through a one-way damping bearing. The first gear 201 on the rotating shaft 200 meshes with the second gear 103a;

[0048] There is transmission between the third gear 203 and the fourth gear 204. One side of the fourth gear 204 is connected to the electric push rod 205, and the movable end of the electric push rod 205 is connected to the rear end of the core column 102a.

[0049] Preferably, when injection molding is performed, the injection pipe core 102 does not rotate. Under the action of the electric push rod 205, the injection pipe core 102 pushes the material towards the discharge port.

[0050] It should be added that during the rotation process of the injection pipe core 102, the rotation angle is an integer multiple of 360°. That is, when the rotation of the injection pipe core 102 for recovery ends, the opening 102c is directly below the first thread head 102b.

[0051] The upper end of the base 500 is provided with a first support rod 501 and a second support rod 502. The first support rod 501 supports the conveying pipeline 100, and the second support rod 502 supports the third gear 203 and the fourth gear 204; at the same time, when the injection pipe core 102 is pushed forward during the injection molding process, the pushing distance is a fixed value. When the pushing is completed, the anti-sinking head 103e is located between the threads of the first thread head 102b, which is to prevent the anti-sinking head 103e from interfering with the first thread head 102b when the injection pipe core 102 rotates for recovery.

[0052] The inner diameter of the rear pipe 101b is the same as the inner diameter of the movable head 103c.

[0053] The opening 102c can accommodate the anti-sinking head 103e to pass through.

[0054] It should be noted that during the rotation and recovery process of the injection pipe core 102, liquid rubber will be conveyed to the discharge port to ensure sufficient material for the next injection molding.

[0055] Preferably, the rotational speeds of the second gear 103a and the fourth gear 204 are the same.

[0056] During use, when injection molding is carried out, the injection pipe core 102 is pushed forward under the action of the electric push rod 205, and the rubber material enters the interior of the mold 400 from the discharge port and then cools. At the same time, the reduction motor 202 drives the fourth gear 204 to rotate slowly, and the electric push rod 205 slowly retracts the injection pipe core 102 during the rotation, that is, the injection pipe core 102 is slowly retracted during the rotation. The injection pipe core 102 during the rotation replenishes the material to the discharge port. During this process, the first gear 201 drives the second gear 103a to rotate in the reverse direction, that is, the movable head 103c and the first threaded head 102b rotate in the reverse direction at the same speed. At the same time, the movable head 103c moves along the sliding thread groove 101c towards the discharge port. During the movement, the end of the movable head 103c presses the rotating head 104a, and the pressing column 104g presses the pressed column 104c, driving the scraping strip 104f to rotate, and scraping the inner wall of the discharge port 101g once to clean the discharge port;

[0057] Before the next injection molding, the reduction motor 202 needs to drive the first gear 201 in the reverse direction, the third gear 203 does not rotate, and the second gear 103a is driven in the reverse direction through the first gear 201 to reset the movable head 103c, and then the above operation is repeated.

[0058] In summary, during the working process of the injection molding device, during the retraction process of the injection pipe core 102, the movable head 103c is driven to rotate in the reverse direction, and the anti-settling head 103e is used to stir the rubber solution that has settled inside the pipeline. At the same time, during the reverse movement of the movable head 103c, the moving head 104b will be pressed, and the pressing columns 104g on the moving head 104b press the pressed columns 104c one by one, causing the scraping strip 104f to rotate to scrape the discharge port, avoiding the situation of blockage of the discharge port.

[0059] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without materially departing from the novel teachings and advantages of the subject matter described in this application (e.g., changes in the dimensions, scales, structures, shapes and proportions of various elements, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, colors, orientations, etc.). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number or position of discrete elements may be altered or changed. Accordingly, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover the structures that perform the recited function herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0060] In addition, in order to provide a concise description of the exemplary embodiments, not all features of the actual embodiments may be described (i.e., those features that are not relevant to the currently contemplated best mode of carrying out the present invention, or those features that are not relevant to the implementation of the present invention).

[0061] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous specific implementation decisions may be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development efforts will be a routine task of design, fabrication and production without undue experimentation.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention may be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. An anti-sinking extrusion rubber injection molding machine, characterized in that: including, a conveying pipeline (100), an outlet of the conveying pipeline (100) injects liquid rubber into a mold (400), one side of the conveying pipeline (100) is driven by a rotating shaft (200), a solid rubber is input into the conveying pipeline (100) through a feeding groove (300) at the upper end of the conveying pipeline (100), and the lower end of the conveying pipeline (100) is supported by a base (500); the conveying pipeline (100) includes a heating pipe (101), a filling pipe core (102) is arranged inside the conveying pipeline (100), a reverse stirring mechanism (103) is arranged in the middle of the filling pipe core (102), and an anti-blocking mechanism (104) is arranged at the front end of the filling pipe core (102); both the anti-blocking mechanism (104) and the reverse stirring mechanism (103) are arranged inside the heating pipe (101); the filling pipe core (102) passes through the reverse stirring mechanism (103); the filling pipe core (102) includes a core column (102a), a conical extrusion head is arranged at the front end of the core column (102a), a first threaded head (102b) is arranged on the filling pipe core (102), and an opening (102c) is arranged at the lower end of the first threaded head (102b); the reverse stirring mechanism (103) includes a second gear (103a), a threaded pipe (103b) is arranged inside the second gear (103a), the inner side of the threaded pipe (103b) meshes with a second threaded head (103f) on the outer side of a movable head (103c), an anti-sinking head (103e) is arranged on the bottom surface of the inner side of the movable head (103c), and a sliding head (103d) is arranged at the outer edge of the front end of the movable head (103c); the filling pipe core (102) passes through the inside of the movable head (103c); the heating pipe (101) includes a front pipe (101a), a sliding thread groove (101c) is arranged on the inner wall of the front pipe (101a), and the sliding head (103d) is arranged in the sliding thread groove (101c); the pitch of the sliding thread groove (101c), the first threaded head (102b) and the second threaded head (103f) is the same, the thread direction of the sliding thread groove (101c) is the same as that of the second threaded head (103f), and the thread directions of the first threaded head (102b) and the second threaded head (103f) are opposite.

2. The anti-sinking extrusion rubber injection molding machine according to claim 1, wherein: the heating pipe (101) further includes a rear pipe (101b), and the second gear (103a) is arranged between the front pipe (101a) and the rear pipe (101b); an outlet (101g) is arranged at the output end of the front pipe (101a), an extrusion groove (101d) is arranged inside the front pipe (101a) near the outlet (101g), a pushing port (101e) is arranged inside the extrusion groove (101d), and a limiting protrusion (101f) is arranged at one end of the pushing port (101e) facing the outlet (101g).

3. The anti-sinking extrusion rubber injection molding machine according to claim 2, characterized in that: The anti-blocking mechanism (104) includes a rotating head (104a). A through port (104d) is provided in the middle of the rotating head (104a). The caliber of the through port (104d) is the same as that of the discharge port (101g). One end of a scraping strip (104f) is connected to the inner wall of the through port (104d), and the scraping strip (104f) also fits against the inner wall of the discharge port (101g). A limiting groove (104e) is provided outside the through port (104d), and the limiting protrusion (101f) is placed in the limiting groove (104e). The rotating head (104a) is placed at one end of the extrusion groove (101d) close to the discharge port (101g). Several compression columns (104c) of different lengths are provided on one side of the rotating head (104a). The compression columns (104c) are annularly and evenly distributed on the rotating head (104a). Several extrusion columns (104g) are provided on one side of the compression columns (104c). The extrusion columns (104g) are connected to a moving head (104b). The position of the rotating head (104a) in the extrusion groove (101d) cannot be changed, but the rotating head (104a) can rotate. The extrusion columns (104g) on one side of the moving head (104b) are placed in the extrusion groove (101d), and the outside of the moving head (104b) is connected to the inner wall of the front pipe (101a) through a spring.

4. The anti-sinking extrusion rubber injection molding machine according to claim 1, wherein: One end of the rotating shaft (200) is connected to the output end of a reduction motor (202), and the other end is connected to a third gear (203) through a one-way damping bearing. The rotating shaft (200) is meshed with the second gear (103a) through a first gear (201). Power is transmitted between the third gear (203) and a fourth gear (204). One side of the fourth gear (204) is connected to an electric push rod (205), and the movable end of the electric push rod (205) is connected to the rear end of a core column (102a).

5. The anti-sinking extrusion rubber injection molding machine according to claim 4, wherein: A first support rod (501) and a second support rod (502) are provided at the upper end of the base (500). The first support rod (501) supports the conveying pipeline (100), and the second support rod (502) supports the third gear (203) and the fourth gear (204).

6. The anti-sinking extrusion rubber injection molding machine according to claim 2, characterized in that: The inner diameter of the rear pipe (101b) is the same as that of the movable head (103c).

7. The anti-sinking extrusion rubber injection molding machine according to claim 2, wherein: The opening (102c) can accommodate the anti-settling head (103e) to pass through.

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