Anti-sinking extrusion type rubber injection molding machine

Abstract

The invention discloses an anti-sinking extrusion type rubber injection molding machine, and relates to the technical field of rubber injection molding machines, the anti-sinking extrusion type rubber injection molding machine comprises a conveying pipeline, an output port of the conveying pipeline injects liquid rubber into a mold, one side of the conveying pipeline is driven by a rotating shaft, and the upper end of the conveying pipeline inputs solid rubber into the conveying pipeline through a feeding groove; the lower end of the conveying pipeline is supported by a base; the injection molding device has the beneficial effects that in the working process of the injection molding device, a movable head is driven to rotate reversely in the injection pipe core recycling process, a rubber solution which settles in a pipeline is stirred through an anti-countersunk head, meanwhile, the movable head can be extruded in the reverse moving process of the movable head, and compression columns are extruded one by one through extrusion columns on the movable head; and the scraping strip rotates to scrape the discharging opening, and the situation that the discharging opening is blocked is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of rubber injection molding machines, in particular to an anti-sinking extrusion type rubber injection molding machine. Background Art

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

[0003] Due to their physical properties (such as density, particle size, etc.), some rubber materials may settle when they are left still for a long time or when they do not flow smoothly, resulting in uneven materials during the injection molding process. If the equipment is not heated enough, the fluidity of the rubber material will decrease, causing some materials to settle in the conveying pipeline. When the rubber material is fed unevenly or the feeding speed does not match, the material density in certain areas may increase. At the same time, a head structure is provided at the end of the injection molding machine, and the discharge hole of the head is small. When the injection molding machine is stopped, the residual material in the discharge hole of the head is easy to dry and clog due to the drop in internal temperature. If it is not cleaned in time, it will cause the next operation. However, the heads of injection molding machines in the prior art are mostly integrated structures, and the discharge holes are small, which makes cleaning difficult. Summary of the invention

[0004] Some simplifications or omissions may be made in this section and the abstract and title of the present application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions shall not be used to limit the scope of the present invention.

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

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

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: an anti-sinking extrusion type rubber injection molding machine, comprising a delivery pipe, the delivery pipe has an output port that injects liquid rubber into a mold, one side of the delivery pipe is driven by a rotating shaft, the upper end of the delivery pipe inputs solid rubber into the interior of the delivery pipe through a feed trough, and the lower end of the delivery pipe is supported by a base; The delivery pipeline includes a heating pipe, an injection core is arranged in the delivery pipeline, a reverse stirring mechanism is arranged in the middle of the injection core, and an anti-blocking mechanism is arranged at the front end of the injection core; the anti-blocking mechanism and the reverse stirring mechanism are both arranged inside the heating pipe; the injection core passes through the reverse stirring mechanism; The injection tube core comprises a core column, a conical extrusion head is provided at the front end of the core column, a first thread head is provided on the injection tube core, and an opening is provided at the lower end of the first thread head; The reverse stirring mechanism comprises a second gear, a threaded tube is provided on the inner side of the second gear, the inner side of the threaded tube is meshed with a second threaded head on the outer side of the movable head, an anti-sinking head is provided on the bottom surface of the inner side of the movable head, and a sliding head is provided on the outer edge of the front end of the movable head; the injection tube core passes through the interior of the movable head; The heating tube comprises a front tube, an inner wall of the front tube is provided with a sliding thread groove, and the sliding head is placed in the sliding thread groove.

[0008] The pitches of the sliding thread groove, the first thread head and the second thread head are the same, the thread directions of the sliding thread groove and the second thread head are the same, and the thread directions of the first thread head and the second thread head are opposite.

[0009] As a preferred solution of the anti-sinking extrusion type rubber injection molding machine of the present invention, wherein: the heating tube further includes a rear tube, and the second gear is disposed between the front tube and the rear tube; The output end of the front tube is provided with a discharge port, an end of the front tube close to the discharge port is internally provided with an extrusion groove, an injection port is internally provided with the extrusion groove, and a limiting protrusion is provided at one end of the injection port facing the discharge port.

[0010] As a preferred solution of the anti-sinking extrusion rubber injection molding machine described in the present invention, the anti-blocking mechanism comprises a rotating head, a through opening is provided in the middle of the rotating head, the diameter of the through opening is consistent with the diameter of the discharge port, one end of a scraper is connected to the inner wall of the through opening, and the scraper is also in contact with the inner wall of the discharge port; a limiting groove is provided on the outer side of the through opening, the limiting protrusion is placed in the limiting groove, the rotating head is placed at one end of the extrusion groove close to the discharge port, a plurality of pressure columns of different lengths are provided on one side of the rotating head, the pressure columns are distributed in a ring shape on the rotating head, a plurality of extrusion columns are provided on one side of the pressure columns, the extrusion columns are connected to the 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 placed in the extrusion groove, and the outer side of the moving head is connected to the inner wall of the front tube through a spring.

[0011] As a preferred solution of the anti-sinking extrusion type rubber injection molding machine of the present invention, 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 fitted with the second gear through the first gear; The third gear is transmitted to the fourth gear, one side of the fourth gear is connected to an electric push rod, and the movable end of the electric push rod is connected to the rear end of the core column.

[0012] As a preferred solution of the anti-sinking extrusion rubber injection molding machine described in the present invention, a first support rod and a second support rod are provided at the upper end of the base, the first support rod supports the conveying pipeline, and the second support rod supports the third gear and the fourth gear.

[0013] As a preferred solution of the anti-sinking extrusion rubber injection molding machine of the present invention, the inner diameter of the rear tube is consistent with the inner diameter of the movable head, and the outer edge of the first threaded head is in contact with the inner walls of the rear tube and the movable head.

[0014] As a preferred solution of the anti-sinking extrusion type rubber injection molding machine of the present invention, wherein: the opening can accommodate the anti-sinking head to pass through.

[0015] Beneficial effects of the present invention: During the operation of the injection molding device, the present invention drives the movable head to rotate in the opposite direction during the recovery of the injection tube core, and uses the anti-sinking head to stir the rubber solution that has settled inside the pipe. At the same time, the movable head is squeezed during the reverse movement of the movable head, and the squeeze columns on the movable head squeeze the pressure columns one by one, so that the scraper rotates to scrape the discharge port, thereby avoiding the blockage of the discharge port. The device effectively solves the problem of blockage of the discharge port caused by material sedimentation in the conveying pipeline, and cooperates with the work of the injection core to achieve the effect of preventing sedimentation and blockage throughout the process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0017] Figure 1 For anti-sinking extrusion rubber injection molding machine; Figure 2 For anti-sinking extrusion rubber injection molding machine; Figure 3 For anti-sinking extrusion rubber injection molding machine; Figure 4 For anti-sinking extrusion rubber injection molding machine; Figure 5 For anti-sinking extrusion rubber injection molding machine; Figure 6 For anti-sinking extrusion type rubber injection molding machine.

[0018] Markings in the figure: 100, conveying pipeline; 200, rotating shaft; 300, feeding trough; 400, mold; 500, base; 101, heating tube; 102, injection tube core; 103, reverse stirring mechanism; 104, anti-blocking mechanism; front tube 101a,; 101b, rear tube; 101c, sliding thread groove; 101d, extrusion groove; 101e, injection port; 101f, limiting protrusion; 101g, discharge port; 102a, core column; 102b, first thread head; 102c, opening; 10 3a, second gear; 103b, threaded tube; 103c, movable head; 103d, sliding head; 103e, anti-sinking head; 104a, rotating head; 104b, moving head; 104c, pressure column; 104d, through port; 104e, limiting groove; 104f, scraper; 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 DESCRIPTION

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0022] Example: Refer to Figure 1 to Figure 6, which is the first embodiment of the present invention, provides an anti-sinking extrusion type rubber injection molding machine, which includes a delivery pipe 100, the delivery pipe 100 has an output port for injecting liquid rubber into a mold 400, one side of the delivery pipe 100 is driven by a rotating shaft 200, the upper end of the delivery pipe 100 inputs solid rubber into the inside of the delivery pipe 100 through a feed trough 300, and the lower end of the delivery pipe 100 is supported by a base 500; The delivery pipeline 100 includes a heating pipe 101, an injection pipe core 102 is arranged in the delivery pipeline 100, a reverse stirring mechanism 103 is arranged in the middle of the injection pipe core 102, and an anti-blocking mechanism 104 is arranged at the front end of the injection pipe core 102; the anti-blocking mechanism 104 and the reverse stirring mechanism 103 are both arranged inside the heating pipe 101; the injection pipe core 102 passes through the reverse stirring mechanism 103; The injection tube core 102 includes a core column 102a, a conical extrusion head is provided at the front end of the core column 102a, a first thread head 102b is provided on the injection tube core 102, and an opening 102c is provided at the lower end of the first thread head 102b; The reverse stirring mechanism 103 includes a second gear 103a, a threaded tube 103b is provided on the inner side of the second gear 103a, the inner side of the threaded tube 103b is meshed with a second threaded head 103f on the outer side of the movable head 103c, an anti-sinking head 103e is provided on the bottom surface of the inner side of the movable head 103c, and a sliding head 103d is provided on the outer edge of the front end of the movable head 103c; the injection tube core 102 passes through the interior of the movable head 103c; The heating tube 101 comprises a front tube 101a, an inner wall of the front tube 101a is provided with a sliding thread groove 101c, and a sliding head 103d is disposed in the sliding thread groove 101c.

[0023] The sliding thread groove 101c, the first thread head 102b and the second thread head 103f have the same pitch, the sliding thread groove 101c and the second thread head 103f have the same thread direction, and the first thread head 102b and the second thread head 103f have opposite thread directions.

[0024] 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.

[0025] Preferably, the first gear 201 drives the second gear 103a to rotate, and the second gear 103a drives the movable head 103c to rotate through the threaded tube 103b. At the same time, the sliding head 103d moves along the sliding thread groove 101c during the rotation, and the movable head 103c moves along the sliding thread groove 101c toward the anti-blocking mechanism 104 while rotating. During the rotation, the anti-sinking head 103e and the first threaded head 102b are staggered and do not interfere with each other.

[0026] 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; The output end of the front tube 101a is provided with a discharge port 101g, an end of the front tube 101a close to the discharge port 101g is provided with an extrusion groove 101d, an injection port 101e is provided inside the extrusion groove 101d, and a limiting protrusion 101f is provided at one end of the injection port 101e facing the discharge port 101g.

[0027] The anti-blocking mechanism 104 includes a rotating head 104a, a through hole 104d is provided in the middle of the rotating head 104a, the diameter of the through hole 104d is consistent with the diameter of the discharge port 101g, and one end of a scraper 104f is connected to the inner wall of the through hole 104d, and the scraper 104f is also in contact with the inner wall of the discharge port 101g; a limiting groove 104e is provided on the outer side of the through hole 104d, and the limiting protrusion 101f is placed in the limiting groove 104e, and the rotating head 104a is placed at one end of the extrusion groove 101d close to the discharge port 101g, and the rotating head 104a is placed at the end of the extrusion groove 101d close to the discharge port 101g. A plurality of pressure columns 104c of different lengths are provided on one side of 4a, and the pressure columns 104c are distributed in a ring shape on the rotating head 104a. A plurality of extrusion columns 104g are provided on one side of the pressure columns 104c, and 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, and the outer side of the moving head 104b is connected to the inner wall of the front tube 101a through a spring.

[0028] Preferably, the pressure column 104c and the extrusion column 104g are both multiple columnar bars of different lengths, and the ends of each have inclined surfaces. When the extrusion column 104g extrudes the pressure column 104c, the longest columnar bar in the extrusion column 104g extrudes the shortest columnar bar in the pressure column 104c. At this time, the rotating head 104a completes a certain angle of rotation, and then the second longest columnar bar in the extrusion column 104g begins to contact and squeeze the second shortest columnar bar in the pressure 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 motion trajectory, and the anti-blocking mechanism 104 completes one circle of rotation.

[0029] 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 rotating shaft 200 is fitted with the second gear 103a through the first gear 201; The third gear 203 is transmitted to the fourth gear 204 . One side of the fourth gear 204 is connected to the electric push rod 205 . The movable end of the electric push rod 205 is connected to the rear end of the core column 102 a .

[0030] Preferably, when the injection molding operation is performed, the injection tube core 102 does not rotate, and under the action of the electric push rod 205, the injection tube core 102 pushes the material toward the discharge port.

[0031] It should be supplemented that, during the rotation of the injection tube core 102 , the rotation degree is an integer multiple of 360°, that is, when the injection tube core 102 finishes its recovery rotation, the opening 102c is located directly below the first thread head 102b .

[0032] 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 pipe 100, and the second support rod 502 supports the third gear 203 and the fourth gear 204. At the same time, when the injection tube core 102 is pushed forward during the injection molding process, the pushing distance is a fixed value. When the pushing is completed, the anti-counterfeiting head 103e is located between the threads of the first thread head 102b. This is to avoid interference between the anti-counterfeiting head 103e and the first thread head 102b when the injection tube core 102 is rotated and recovered.

[0033] The inner diameter of the rear tube 101b is consistent with the inner diameter of the movable head 103c, and the outer edge of the first threaded head 102b is in contact with the inner walls of the rear tube 101b and the movable head 103c.

[0034] The opening 102c can accommodate the anti-sinking head 103e to pass through.

[0035] It should be noted that during the rotation and recovery process of the injection tube core 102 , liquid rubber will be transported to the discharge port so that there is sufficient material for the next injection molding.

[0036] Preferably, the rotation speed of the second gear 103a is consistent with that of the fourth gear 204.

[0037] During use, when injection molding is performed, the injection tube core 102 is pushed forward by the electric push rod 205, and the rubber material enters the mold 400 from the discharge port and is then cooled. 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 tube core 102 during the rotation process, that is, the injection tube core 102 is slowly recovered during the rotation process, and the injection tube core 102 during the rotation process replenishes the material to the discharge port. In this process, the first gear 201 drives the second gear 103a to rotate in the opposite direction, that is, the movable head 103c rotates in the opposite direction and at the same speed as the first thread head 102b. At the same time, the movable head 103c moves toward the discharge port along the sliding thread groove 101c. During the movement, the end of the movable head 103c squeezes the rotating head 104a, and the squeezing column 104g squeezes the pressure column 104c, driving the scraper 104f to rotate, and the inner wall of the discharge port 101g is scraped once to clean the discharge port; Before the next injection molding, the reduction motor 202 drives the first gear 201 in reverse, the third gear 203 does not rotate, and the second gear 103a is driven in reverse by the first gear 201 to reset the movable head 103c, and then the above operation is repeated.

[0038] In summary, during the operation of the injection molding device, the movable head 103c is driven to rotate in the opposite direction during the recovery of the injection tube core 102, and the anti-sinking head 103e is used to stir the rubber solution that has settled inside the pipe. At the same time, during the reverse movement of the movable head 103c, the movable head 104b is squeezed, and the pressure columns 104c are squeezed one by one through the squeezing columns 104g on the movable head 104b, so that the scraper 104f rotates to scrape the discharge port to avoid blockage of the discharge port.

[0039] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, changes in orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application. 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 or number or position of the discrete element may be changed or changed. Therefore, 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 an alternative embodiment. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. 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 invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0040] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those features that are not relevant to implementing the invention).

[0041] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An anti-sinking extrusion type rubber injection molding machine, characterized in that: include, A delivery pipe (100), wherein the delivery pipe (100) has an output port for injecting liquid rubber into the mold (400), one side of the delivery pipe (100) is driven by a rotating shaft (200), the upper end of the delivery pipe (100) inputs solid rubber into the interior of the delivery pipe (100) through a feed trough (300), and the lower end of the delivery pipe (100) is supported by a base (500); The delivery pipeline (100) comprises a heating pipe (101), an injection tube core (102) is arranged in the delivery pipeline (100), a reverse stirring mechanism (103) is arranged in the middle of the injection tube core (102), and an anti-blocking mechanism (104) is arranged at the front end of the injection tube core (102); the anti-blocking mechanism (104) and the reverse stirring mechanism (103) are both arranged inside the heating pipe (101); the injection tube core (102) passes through the reverse stirring mechanism (103); The injection tube core (102) comprises a core column (102a), a conical extrusion head is provided at the front end of the core column (102a), a first thread head (102b) is provided on the injection tube core (102), and an opening (102c) is provided at the lower end of the first thread head (102b); The reverse stirring mechanism (103) comprises a second gear (103a), a threaded tube (103b) is provided on the inner side of the second gear (103a), the inner side of the threaded tube (103b) is meshed with a second threaded head (103f) on the outer side of a movable head (103c), an anti-sinking head (103e) is provided on the inner bottom surface of the movable head (103c), and a sliding head (103d) is provided at the outer edge of the front end of the movable head (103c); the injection tube core (102) passes through the interior of the movable head (103c); The heating tube (101) comprises a front tube (101a), the inner wall of the front tube (101a) being provided with a sliding thread groove (101c), and the sliding head (103d) being disposed in the sliding thread groove (101c); The sliding thread groove (101c), the first thread head (102b) and the second thread head (103f) have the same thread pitch, the sliding thread groove (101c) and the second thread head (103f) have the same thread direction, and the first thread head (102b) and the second thread head (103f) have opposite thread directions.

2. The anti-sinking extrusion type rubber injection molding machine according to claim 1, characterized in that: The heating tube (101) further comprises a rear tube (101b), and the second gear (103a) is disposed between the front tube (101a) and the rear tube (101b); The output end of the front tube (101a) is provided with a discharge port (101g), an end of the front tube (101a) close to the discharge port (101g) is provided with an extrusion groove (101d) inside, an injection port (101e) is provided inside the extrusion groove (101d), and a limiting protrusion (101f) is provided at one end of the injection port (101e) facing the discharge port (101g).

3. The anti-sinking extrusion type rubber injection molding machine according to claim 2, characterized in that: The anti-blocking mechanism (104) comprises a rotating head (104a), a through opening (104d) is provided in the middle of the rotating head (104a), the caliber of the through opening (104d) is consistent with the caliber of the discharge port (101g), one end of a scraper (104f) is connected to the inner wall of the through opening (104d), and the scraper (104f) is also in contact with the inner wall of the discharge port (101g); a limiting groove (104e) is provided on the outer side of the through opening (104d), 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), and the rotating head A plurality of pressure columns (104c) of different lengths are provided on one side of the rotating head (104a), and the pressure columns (104c) are arranged in a ring shape on the rotating head (104a). A plurality of extrusion columns (104g) are provided on one side of the pressure columns (104c), and 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), and the outer side of the moving head (104b) is connected to the inner wall of the front tube (101a) through a spring.

4. The anti-sinking extrusion type rubber injection molding machine according to claim 1, characterized in that: 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) via a one-way damping bearing; the rotating shaft (200) is fitted with the second gear (103a) via the first gear (201); The third gear (203) and the fourth gear (204) are transmitted to each other, 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 the core column (102a).

5. The anti-sinking extrusion type rubber injection molding machine according to claim 4, characterized in that: 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 delivery pipeline (100), and the second support rod (502) supports the third gear (203) and the fourth gear (204).

6. The anti-sinking extrusion type rubber injection molding machine according to claim 2, characterized in that: The inner diameter of the rear tube (101b) is consistent with the inner diameter of the movable head (103c), and the outer edge of the first threaded head (102b) fits with the inner walls of the rear tube (101b) and the movable head (103c).

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

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