Injection mechanism and rubber injection machine

Abstract

This utility model discloses an injection mechanism and a rubber injection molding machine, relating to the field of injection equipment technology. The injection mechanism includes an injection device and a plasticizing device. The injection device has an injection barrel. The plasticizing device is disposed on one side of the injection device and includes a plasticizing barrel connected to the injection barrel. The plasticizing barrel is inclined downwards from the end closest to the injection barrel towards the end furthest from the injection barrel. The technical solution provided by this utility model can solve the problem of high feeding position and inconvenient feeding caused by the plasticizing device being located at the top in traditional vertical rubber injection molding machines.

Description

Technical Field

[0001] This utility model relates to the field of injection equipment technology, and in particular to an injection mechanism and a rubber injection machine. Background Technology

[0002] In traditional vertical rubber injection molding machines, the injection mechanism adopts a vertical structure, consisting of a plasticizing unit and an injection unit. Because the plasticizing unit is located above the injection unit, the feed position is high and in the middle of the equipment, making feeding very inconvenient. Utility Model Content

[0003] The main purpose of this invention is to propose an injection mechanism and a rubber injection machine, which aims to solve the problems of high feeding position and inconvenient feeding caused by the plasticizing device being located at the top in traditional vertical rubber injection machines.

[0004] To achieve the above objectives, the injection mechanism proposed in this utility model includes:

[0005] The injection device has an injection cylinder;

[0006] A plasticizing device is disposed on one side of the injection device. The plasticizing device includes a plasticizing cylinder, which is connected to the injection cylinder. The plasticizing cylinder is inclined downward from one end near the injection cylinder to the end away from the injection cylinder.

[0007] In one embodiment, the axis of the plasticizing barrel is set at an angle to the axis of the injection barrel.

[0008] In one embodiment, the plasticizing device further includes a plasticizing screw disposed within the plasticizing cylinder and a first driving member drivenly connected to the plasticizing screw, the first driving member being disposed within the plasticizing cylinder; the plasticizing cylinder is provided with a feed inlet, the horizontal height of the feed inlet being higher than the horizontal height of the first driving member.

[0009] In one embodiment, the feed inlet is located on the upward-facing peripheral wall of the plasticizing cylinder;

[0010] And / or, the plasticizing cylinder has a first section, a second section and a third section connected in sequence along its axial direction, and the feed port is located in the second section.

[0011] In one embodiment, the plasticizing device further includes a boom, one end of which is connected to the plasticizing cylinder, and the other end of which is connected to the injection device.

[0012] In one embodiment, the injection device further includes a connector that is connected to both the plasticizing cylinder and the injection cylinder.

[0013] In one embodiment, the injection device further includes an injection plunger located below the connecting body. The injection plunger is movably disposed in the injection barrel. The injection plunger has an injection channel. The connecting body has a feed channel. The injection barrel has a storage cavity and an injection port communicating with the storage cavity. The plasticizing barrel, the feed channel, the injection channel, the storage cavity, and the injection port are sequentially connected.

[0014] In one embodiment, during the material storage stage of the injection mechanism, the molten rubber material in the plasticizing barrel enters the storage chamber through the feed channel, pushing the injection plunger to move away from the injection port;

[0015] During the injection phase of the injection mechanism, the injection plunger moves toward the injection port to compress the rubber material in the storage chamber, so that the rubber material is injected into the mold cavity through the injection port.

[0016] In one embodiment, the connector is detachably connected to the plasticizing cylinder.

[0017] This utility model also proposes a rubber injection molding machine, comprising:

[0018] A mold locking mechanism is used to lock the placed mold.

[0019] The injection mechanism described above is located on top of the mold-locking mechanism.

[0020] This invention solves the problem of high feeding position and inconvenient feeding caused by the plasticizing device being located at the top in traditional vertical rubber injection molding machines by placing the plasticizing device on one side of the injection device, rather than at the top. Specifically, the injection mechanism includes an injection device and a plasticizing device, wherein the plasticizing device has a plasticizing cylinder connected to the injection cylinder of the injection device, and the plasticizing cylinder is inclined downward from the end closer to the injection cylinder to the end farther away from the injection cylinder. This layout not only reduces the height of the plasticizing cylinder's inlet but also moves its position from the center of the equipment to the side, thereby improving the convenience of feeding operations and optimizing the human-machine interface of the equipment. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 A schematic diagram of an embodiment of the injection mechanism provided by this utility model;

[0023] Figure 2 for Figure 1 A partial sectional view of one embodiment;

[0024] Figure 3 for Figure 1 A schematic diagram of the structure of an embodiment of a plasticizing device.

[0025] Explanation of icon numbers:

[0026] 1000, Rubber injection machine; 100, Injection mechanism; 1, Injection device; 101, Feed channel; 102, Injection channel; 103, Storage chamber; 104, Injection port; 11, Injection barrel; 12, Connector; 13, Injection plunger; 14, Fastener; 15, Second drive component; 2, Plasticizing device; 201, Feed port; 21, Plasticizing barrel; 211, First section; 212, Second section; 213, Third section; 22, Plasticizing screw; 23, Hanging rod; 24, First drive component; 200, Mold clamping mechanism.

[0027] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0029] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0030] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0031] In traditional vertical rubber injection molding machines, the injection mechanism adopts a vertical structure, consisting of a plasticizing unit and an injection unit. Because the plasticizing unit is located above the injection unit, the feed position is high and in the middle of the equipment, making feeding very inconvenient.

[0032] To solve the above problems, this utility model proposes an injection mechanism 100.

[0033] Please see Figures 1 to 3 In one embodiment of this utility model, the injection mechanism 100 includes:

[0034] Injection device 1 has an injection cylinder 11;

[0035] Plasticizing device 2 is disposed on one side of injection device 1. Plasticizing device 2 includes plasticizing cylinder 21, which is connected to injection cylinder 11. Plasticizing cylinder 21 is inclined downward from one end close to injection cylinder 11 toward the other end away from injection cylinder 11.

[0036] It is understood that the injection mechanism 100 can be applied to either a vertical rubber injection molding machine 1000 or a horizontal rubber injection molding machine 1000. In this embodiment, a vertical rubber injection molding machine 1000 is used as an example for explanation. The vertical rubber injection molding machine 1000 includes the injection mechanism 100, but is not limited to being composed solely of the injection mechanism 100. It may further include functional modules such as a mold clamping mechanism 200, a hydraulic system, and an electrical control system, depending on the actual application requirements. For ease of explanation, the following describes the structure and working principle of the equipment, which includes the injection mechanism 100 and the mold clamping mechanism 200, in detail: The injection mechanism 100 is used to quantitatively inject the plasticized rubber material into the mold cavity to complete the molding process of the rubber product; while the mold clamping mechanism 200 is used to install and fix the mold, and provides sufficient clamping force during the injection process to prevent the mold from opening due to the injection pressure. At the same time, it realizes the mold opening action after injection to remove the molded product.

[0037] In this embodiment, the injection mechanism 100 includes a plasticizing device 2 and an injection device 1. The plasticizing device 2 is located on one side of the injection device 1. Unlike the vertical layout in traditional vertical rubber injection molding machines where the plasticizing device is located above the injection device, this side-mounted structure can change the spatial configuration of the equipment, so that the feeding operation is no longer limited to the high position of the center of the equipment, but is transferred to the outside of the equipment, thereby improving the convenience and safety of operation.

[0038] Specifically, the plasticizing device 2 includes a plasticizing cylinder 21 and a plasticizing screw 22. The plasticizing cylinder 21 has a feed inlet 201 through which rubber granules or rubber compound enters the plasticizing cylinder 21. The plasticizing screw 22 is rotatably disposed inside the plasticizing cylinder 21, and plasticizes the rubber granules or rubber compound through heating and shearing, converting it into a molten state before outputting it. The injection device 1 has an injection cylinder 11, which is connected to the plasticizing cylinder 21, ensuring that the plasticized rubber material can be smoothly transported from the plasticizing cylinder 21 to the injection cylinder 11 for storage, awaiting the injection action.

[0039] Specifically, the plasticizing cylinder 21 is inclined downwards from the end closest to the injection cylinder 11 towards the end furthest from the injection cylinder 11. This means that the two are not arranged coaxially or parallel, but rather the end of the plasticizing cylinder 21 (the end connected to the injection cylinder 11) is higher, while the starting end (the end where the feed inlet 201 is located) is lower, with the overall shape inclined downwards from the end to the starting end. This design allows the feed inlet 201, which was originally located above the injection unit 1, higher in position, and in the middle of the equipment, to be moved to the outside of the equipment and its height reduced. This makes it easier for operators or automatic feeding equipment to perform feeding operations from the side, significantly improving the convenience and safety of feeding operations. At the same time, since the plasticizing cylinder 21 adopts a downward inclination arrangement from near to far, this inclination helps to improve the flowability and stability of the material during the conveying process, reduce the risk of blockage, and provide more favorable force conditions for the plasticizing screw 22 to push the rubber particles or rubber compound, thereby improving plasticizing efficiency and the continuity of the injection process.

[0040] In summary, the injection mechanism 100 proposed by this utility model, by setting the plasticizing device 2 on one side of the injection device 1 and tilting the plasticizing cylinder 21 downward from the end closer to the injection cylinder 11 to the end farther away from the injection cylinder 11, can reduce the height of the feed inlet 201 and move it from the center of the equipment to a side that is easy to operate, thereby improving the convenience and safety of the feeding operation and overcoming the technical defects caused by placing the plasticizing device 2 at the top in the traditional vertical rubber injection machine 1000.

[0041] Please see Figures 1 to 3 In one embodiment, the axis of the plasticizing barrel 21 is set at an angle to the axis of the injection barrel 11.

[0042] In this embodiment, the plasticizing cylinder 21 and the injection cylinder 11 are arranged on different axes, forming a certain acute angle of inclination between their axes (e.g., any suitable angle between 0° and 90°). This acute angle of inclination can be adjusted according to the overall layout of the equipment and process requirements. This non-collinear inclined arrangement means that the plasticizing cylinder 21 is no longer located directly above the injection cylinder 11, but is offset to one side, thereby effectively reducing the height of the inlet 201 and moving its position outward, improving operational visibility and the convenience of manual or automatic feeding. At the same time, this structure also helps to optimize the spatial layout of the equipment, improve the accessibility of maintenance and cleaning, and thus improve the ergonomic performance and production efficiency of the equipment.

[0043] Please see Figures 1 to 3In one embodiment, the plasticizing device 2 further includes a plasticizing screw 22 disposed in the plasticizing barrel 21 and a first driving member 24 drivenly connected to the plasticizing screw 22. The first driving member 24 is disposed in the plasticizing barrel 21. The plasticizing barrel 21 is provided with a feed inlet 201, and the horizontal height of the feed inlet 201 is higher than the horizontal height of the first driving member 24.

[0044] In this embodiment, the plasticizing device 2 further includes a plasticizing screw 22 disposed within a plasticizing barrel 21 and a first driving member 24 drivenly connected to the plasticizing screw 22. The first driving member 24 is disposed at the end of the plasticizing barrel 21 away from the injection barrel 11, so as to directly drive the plasticizing screw 22 to rotate, thereby achieving plasticizing effects such as heating, shearing, and conveying of the rubber raw material. Simultaneously, the plasticizing barrel 21 is provided with a feed inlet 201, and the horizontal height of the feed inlet 201 is higher than the horizontal height of the first driving member 24. Specifically, the feed inlet 201 is located above or to the side of the plasticizing barrel 21, while the first driving member 24 is located at the end of the plasticizing barrel 21, creating a height difference in their spatial layout. This structural design makes the feeding operation more convenient and provides better visibility, while avoiding interference of the first driving member 24 with the feeding path. Furthermore, the reasonable structural separation reduces the risk of rubber material leakage contaminating the first driving member 24, further improving the operational safety, maintenance convenience, and operational stability of the equipment.

[0045] Please see Figures 1 to 3 In one embodiment, the feed inlet 201 is disposed on the peripheral wall of the plasticizing cylinder 21.

[0046] Traditional vertical rubber injection molding machines typically have a vertically mounted plasticizing cylinder with its feed inlet located at the top. This results in a high feeding position, requiring operators to lift the material for filling. This not only increases labor intensity but also poses safety hazards, especially in production environments with frequent material feeding.

[0047] In this embodiment, by placing the feed inlet 201 on the peripheral wall of the plasticizing cylinder 21, the feeding position is moved from the top of the equipment to the side, thereby reducing the height of the feeding position and bringing the feed inlet 201 closer to the outside of the equipment. This makes it easier for operators to perform feeding operations while standing on the ground or a lower platform. At the same time, this arrangement also provides more convenient docking space for the automatic feeding device, which is conducive to realizing continuous and automated production.

[0048] Please see Figures 1 to 3 In one embodiment, the feed inlet 201 is located on the upward-facing peripheral wall of the plasticizing cylinder 21.

[0049] It is understandable that although this invention reduces the feeding height and improves operational convenience to some extent by moving the feed inlet 201 from the top of the traditional plasticizing cylinder 21 to the peripheral wall, placing the feed inlet 201 on the downward-facing peripheral wall of the plasticizing cylinder 21 could lead to a series of practical problems. For example, rubber material is prone to falling downwards due to gravity during the feeding process, failing to accurately fall into the feed inlet 201, resulting in unstable feeding, blockage, and leakage, affecting the continuity and uniformity of feeding, and thus interfering with the subsequent plasticizing and injection processes, and may even cause abnormal equipment operation or product quality fluctuations. Therefore, in this embodiment, by placing the feed inlet 201 on the upward-facing peripheral wall of the plasticizing cylinder 21, i.e., on the side wall area facing upwards in the circumferential direction of the plasticizing cylinder 21, it is possible to maintain the feeding position at a low height and close to the outside of the equipment while avoiding the problem of uncontrolled material falling due to gravity. This arrangement not only facilitates the smooth and stable entry of materials into the plasticizing cylinder 21, but also improves the controllability and reliability of the feeding process.

[0050] Please see Figures 1 to 3 In one embodiment, the plasticizing cylinder 21 has a first section 211, a second section 212 and a third section 213 connected in sequence along its axial direction, and the feed inlet 201 is disposed in the second section 212.

[0051] In this embodiment, the plasticizing cylinder 21 has a first section 211, a second section 212, and a third section 213, which are connected sequentially along the axial direction of the plasticizing cylinder 21. The first section 211 is located close to the injection cylinder 11 and is used to output the plasticized rubber material to the injection cylinder 11. The second section 212, as the intermediate area, is the main section for adding rubber material, and the inlet 201 is located in this section to ensure that the rubber material can enter the plasticizing cylinder 21 in a relatively stable manner, avoiding blockage or uneven dispersion caused by excessive drop in rubber material. The third section 213 is located away from the injection cylinder 11 and serves as a supplementary area during the plasticizing process. By placing the feed inlet 201 in the second section 212 of the plasticizing cylinder 21, the rubber material can be more evenly distributed and gradually enter the third section 213 of the plasticizing cylinder 21 under the combined action of gravity and the rotation of the plasticizing screw, reducing the problem of rubber material accumulation or poor flow. Compared with the feed inlet 201 placed in the first section 211 or the third section 213, the feed inlet 201 placed in the second section 212 is more conducive to maintaining the continuity and controllability of rubber material input, and avoiding a decrease in plasticizing efficiency due to feeding too early or too late.

[0052] Please see Figures 1 to 3In one embodiment, the plasticizing device 2 further includes a lifting rod 23, one end of which is connected to the plasticizing cylinder 21, and the other end of which is connected to the injection device 1.

[0053] It is understandable that since the plasticizing cylinder 21 is no longer located above the injection device 1 as in the traditional structure, but is placed on the side and arranged at a certain angle on one side of the injection device 1, the cantilever effect caused by gravity may lead to insufficient structural rigidity. Especially when the plasticizing screw 22 rotates at high speed and a large reaction force is generated during the plasticizing process, it is easy to cause vibration, displacement, or even affect the plasticizing effect.

[0054] Therefore, in this embodiment, by introducing a hanger 23 as a connector between the plasticizing cylinder 21 and the injection device 1, it is possible to effectively share part of the gravity load of the plasticizing cylinder 21 and its internal material while maintaining their relative positions, thereby enhancing the overall rigidity and vibration resistance of the plasticizing device 2 and improving the stability of equipment operation.

[0055] Please see Figures 1 to 3 In one embodiment, the injection device 1 further includes a connector 12, which is connected to the plasticizing cylinder 21 and the injection cylinder 11 respectively.

[0056] It is understandable that in the injection mechanism 100 of this utility model, since the plasticizing cylinder 21 is no longer vertically arranged above the injection cylinder 11 as in the traditional structure, but is arranged at a certain angle on one side of the injection device 1, there is a certain spatial misalignment between the plasticizing cylinder 21 and the injection cylinder 11.

[0057] To achieve the connection and docking between the two and ensure that the molten rubber material can be smoothly transported from the plasticizing cylinder 21 to the injection cylinder 11, the injection device 1 of this embodiment also includes a connector 12. The connector 12 serves as an intermediate support and transition structure, connecting the plasticizing cylinder 21 and the injection cylinder 11 to form an integrated injection mechanism 100, thereby improving the structural rigidity of the injection mechanism 100.

[0058] Furthermore, the plasticizing screw 22 rotates at high speed and generates significant vibration and reaction forces during the plasticizing process of the rubber material. The presence of the connecting body 12 helps to disperse these vibrations and reaction forces, preventing the plasticizing barrel 21 or injection barrel 11 from shifting or fatigue damage due to uneven local stress, thereby improving the stability and service life of the vertical rubber injection molding machine 1000.

[0059] Furthermore, the connector 12 may or may not connect the plasticizing cylinder 21 and the injection cylinder 11. When the connector 12 connects the plasticizing cylinder 21 and the injection cylinder 11, the connector 12 may be provided with a flow channel or transition cavity for conveying the molten rubber material output from the plasticizing cylinder 21 to the injection cylinder 11; when the connector 12 does not connect the plasticizing cylinder 21 and the injection cylinder 11, the plasticizing cylinder 21 may be connected to the injection cylinder 11 through a flow channel or pipeline.

[0060] Please see Figures 1 to 3 In one embodiment, the injection device 1 further includes an injection plunger 13 located below the connecting body 12. The injection plunger 13 is movably disposed in the injection barrel 11 and has an injection channel 102. The connecting body 12 has a feed channel 101, and the injection barrel 11 has a storage cavity 103 and an injection port 104 communicating with the storage cavity 103. The plasticizing barrel 21, the feed channel 101, the injection channel 102, the storage cavity 103, and the injection port 104 are sequentially connected. During the storage stage of the injection mechanism 100, the molten rubber material in the plasticizing barrel 21 enters the storage cavity 103 through the feed channel 101, pushing the injection plunger 13 to move away from the injection port 104. During the injection stage of the injection mechanism 100, the injection plunger 13 moves towards the injection port 104 to compress the rubber material in the storage cavity 103, so that the rubber material is injected into the mold cavity through the injection port 104.

[0061] In this embodiment, the injection device 1 includes an injection plunger 13, which is located below the connector 12 and is movably disposed inside the injection barrel 11. The injection plunger 13 has an internally penetrating injection channel 102, which is used to guide molten rubber material into the storage chamber 103 of the injection barrel 11 during the storage stage, and to pressurize and inject the rubber material through its compression action during the injection stage.

[0062] The connecting body 12 is provided with a feed channel 101, which connects the plasticizing cylinder 21 with the injection channel 102 on the injection plunger 13, thereby forming a complete material conveying path from the plasticizing cylinder 21 to the injection cylinder 11, ensuring that the molten rubber material can smoothly enter the storage chamber 103.

[0063] The injection barrel 11 has a storage cavity 103 and an injection port 104 connected thereto. The storage cavity 103 is used to receive and temporarily store the molten rubber material delivered by the plasticizing barrel 21 during the storage stage of the injection mechanism 100. The injection port 104 is used to inject the rubber material in the storage cavity 103 into the mold cavity during the injection stage of the injection mechanism 100 to complete the molding process.

[0064] In the specific working process, the rubber material first enters the plasticizing cylinder 21 through the inlet 201 set on the peripheral wall of the plasticizing cylinder 21. Under the action of the plasticizing screw 22, it is heated, mixed and plasticized to form molten rubber material. Subsequently, the molten material passes through the inlet channel 101 in the connecting body 12 and the injection channel 102 of the injection plunger 13 in sequence, and finally enters the storage chamber 103 of the injection cylinder 11 for temporary storage. During the storage stage, as the molten rubber material continuously flows into the storage chamber 103, the injection plunger 13 will move away from the injection port 104 (i.e., move upward) under the action of material pressure, providing sufficient material reserve for the subsequent injection stage. During the injection stage, the injection plunger 13 moves towards the injection port 104 (i.e., move downward) under the action of the second driving member 15, compressing the rubber material in the storage chamber 103, so that it is injected into the mold cavity through the injection port 104 under high pressure, thereby completing the entire injection molding process.

[0065] This embodiment achieves control between the injection channel 102 and the storage chamber 103 through the reciprocating motion of the injection plunger 13, thereby effectively switching between the two stages of storage and injection. This not only improves the pressure control accuracy and response speed of the injection process, but also optimizes the material flow path, reduces the possibility of material retention, and improves the stability and production efficiency of the equipment.

[0066] Please see Figures 1 to 3 In one embodiment, the connector 12 is detachably connected to the plasticizing cylinder 21.

[0067] It is understandable that prolonged operation during rubber injection molding may lead to material residue, scorching, or even blockage in the runner, affecting product quality and equipment operating efficiency.

[0068] Therefore, in this embodiment, the connector 12 serves as a connecting component between the plasticizing cylinder 21 and the injection cylinder 11. One end of the connector is fixedly connected to the injection cylinder 11, while the other end is detachably connected to the plasticizing cylinder 21. Detachable connection methods include, but are not limited to, flange connections, threaded connections, quick-change clamp connections, etc., and are not specifically limited here. This detachable connection structure allows for easy separation of the connector 12 from the plasticizing cylinder 21, facilitating cleaning of the inside of the plasticizing cylinder 21 and preventing poor plasticization due to blockage or contamination.

[0069] Please see Figures 1 to 3 In one embodiment, the injection device 1 further includes a fastener 14, and the connector 12 is connected to the plasticizing cylinder 21 via the fastener 14.

[0070] In this embodiment, the fastener 14 can be a bolt, screw, stud, or other standard fastening element. By providing corresponding mounting holes or threaded holes on the mating surfaces of the connector 12 and the plasticizing cylinder 21, and applying a preload force using the fastener 14, the two are tightly fitted together, thereby ensuring that the connection has sufficient mechanical strength to withstand complex loads such as vibration, pressure impact, and thermal stress generated during the plasticizing process. At the same time, the use of fastener 14 makes the assembly and disassembly between the connector 12 and the plasticizing cylinder 21 more convenient. When cleaning the plasticizing cylinder 21 is required, the operator only needs to loosen or remove the fastener 14 to complete the separation, without the need for special tools or destructive disassembly, which greatly improves the maintainability of the equipment.

[0071] This utility model also proposes a rubber injection molding machine 1000; please refer to [link / reference needed]. Figure 1 The rubber injection machine 1000 includes a mold clamping mechanism 200 and an injection mechanism 100. The specific structure of the injection mechanism 100 is as described in the above embodiments. Since the rubber injection machine 1000 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0072] The injection mechanism 100 is used to inject the plasticized rubber material into the mold cavity of the mold in a quantitative manner to complete the molding process of the rubber product; while the clamping mechanism 200 is used to install and fix the mold, and provide sufficient clamping force during the injection process to prevent the mold from opening due to the injection pressure. At the same time, after the injection is completed, the mold is opened so that the molded product can be taken out.

[0073] The above are merely exemplary embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the technical concept of this utility model and the contents of the specification and drawings of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. An injection mechanism, characterized in that, include: The injection device has an injection cylinder; A plasticizing device is disposed on one side of the injection device. The plasticizing device includes a plasticizing cylinder, which is connected to the injection cylinder. The plasticizing cylinder is inclined downward from one end near the injection cylinder to the end away from the injection cylinder.

2. The injection mechanism as described in claim 1, characterized in that, The axis of the plasticizing cylinder is set at an angle to the axis of the injection cylinder.

3. The injection mechanism as described in claim 1, characterized in that, The plasticizing device further includes a plasticizing screw disposed inside the plasticizing cylinder and a first driving member drivenly connected to the plasticizing screw, the first driving member being disposed in the plasticizing cylinder; the plasticizing cylinder is provided with a feed inlet, the horizontal height of the feed inlet being higher than the horizontal height of the first driving member.

4. The injection mechanism as described in claim 3, characterized in that, The feed inlet is located on the upward-facing peripheral wall of the plasticizing cylinder; And / or, the plasticizing cylinder has a first section, a second section and a third section connected in sequence along its axial direction, and the feed port is located in the second section.

5. The injection mechanism as described in claim 1, characterized in that, The plasticizing device also includes a boom, one end of which is connected to the plasticizing cylinder and the other end of which is connected to the injection device.

6. The injection mechanism as described in claim 1, characterized in that, The injection device further includes a connector, which is connected to the plasticizing cylinder and the injection cylinder respectively.

7. The injection mechanism as described in claim 6, characterized in that, The injection device further includes an injection plunger located below the connecting body. The injection plunger is movably disposed in the injection barrel. The injection plunger has an injection channel. The connecting body has a feed channel. The injection barrel has a storage cavity and an injection port communicating with the storage cavity. The plasticizing barrel, the feed channel, the injection channel, the storage cavity, and the injection port are sequentially connected.

8. The injection mechanism as described in claim 7, characterized in that, During the material storage stage of the injection mechanism, the molten rubber material in the plasticizing barrel enters the storage chamber through the feed channel, pushing the injection plunger to move away from the injection port; During the injection phase of the injection mechanism, the injection plunger moves toward the injection port to compress the rubber material in the storage chamber, so that the rubber material is injected into the mold cavity through the injection port.

9. The injection mechanism as described in claim 6, characterized in that, The connector is detachably connected to the plasticizing cylinder.

10. A rubber injection molding machine, characterized in that, include: A mold locking mechanism is used to lock the placed mold. The injection mechanism as described in any one of claims 1 to 9, wherein the injection mechanism is disposed on top of the mold-locking mechanism.

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