Injection molding machine for producing automobile rubber parts
By designing a movable disc and propeller structure in the injection molding machine, intermittent feeding and agitation functions are achieved, solving the blockage problem caused by excessive feeding and ensuring the stability of material conveying and the continuity of production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEFEI YITUO RUBBER & PLASTIC CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-01
AI Technical Summary
When feeding material into an injection molding machine, there is a problem of excessive material being added at one time, which can lead to blockage of the feed inlet and unstable feeding.
An injection molding machine for producing automotive rubber parts was designed. It adopts a moving disc and propeller structure. Intermittent feeding is achieved through the misalignment of the annular groove and the discharge port. The rotating agitator and propeller are used to avoid blockage and ensure the stability of material conveying.
It effectively avoids clogging at the feed inlet, ensures the stability of material conveying, avoids intermittent feeding, and improves the continuity of the production process.
Smart Images

Figure CN224183582U_ABST
Abstract
Description
An injection molding machine for producing automotive rubber parts Technical Field
[0001] This utility model relates to the field of rubber parts production technology, specifically to an injection molding machine for producing automotive rubber parts. Background Technology
[0002] Injection molding machines, also known as injection molding machines or injection molding machines, are the main molding equipment used to produce various shapes of plastic products from thermoplastic or thermosetting plastics using plastic molds. An injection molding machine consists of an injection system, a mold clamping system, a hydraulic system, a pneumatic control system, and a cooling system. This solution only improves the feeding device at the injection system of the injection molding machine. When producing automotive rubber parts using an injection molding machine, the plastic granules for making the automotive rubber parts need to be poured into the feeding cylinder. Currently, during feeding, there is a situation where too much material is added at once, which may cause blockage at the feed port, resulting in intermittent feeding and causing internal components to operate without material, thus affecting the normal operation of the work process. To address the above problems, the inventor proposes an injection molding machine for the production of automotive rubber parts to solve these issues. Summary of the Invention
[0003] To address the issue of excessive material being added at once during current feeding processes, which can lead to blockage at the feed inlet, this invention aims to provide an injection molding machine for the production of automotive rubber parts.
[0004] To solve the above technical problems, the present invention adopts the following technical solution: an injection molding machine for producing automotive rubber parts, comprising a base, a housing fixedly connected to the top surface of the base, an extrusion cylinder fixedly connected to the side wall of the housing, a feeding cylinder arranged above the housing, a horizontal plate fixedly connected to the middle of the top surface of the feeding cylinder, a motor arranged above the horizontal plate, an extension shaft fixedly connected to the output shaft end of the motor, a propeller fixedly connected to the bottom end of the extension shaft, a baffle plate fixedly connected to the inner side wall of the feeding cylinder, a discharge port through both sides of the top surface of the baffle plate, a movable disc fixedly connected to the side wall of the extension shaft and below the baffle plate, an annular groove through both sides of the top surface of the movable disc, the annular groove corresponding to the discharge port, and an agitator arranged above the baffle plate.
[0005] Preferably, a bracket is fixedly connected to the outer wall of the feeding cylinder, and the bottom surface of the bracket is fixedly connected to the top surface of the housing. The bracket is used to support and fix the feeding cylinder. The injection molding machine consists of an injection system, a mold clamping system, a hydraulic system, a pneumatic control system, and a cooling system. The injection system is responsible for heating the plastic raw material and injecting it into the mold. The injection system includes a plasticizing device and a power transmission device. The plasticizing device mainly consists of a feeding device, a barrel, a screw, and a nozzle, while the power transmission device includes an injection cylinder and an injection seat moving cylinder. The mold clamping system is used to fix the mold and provide sufficient pressure to ensure that the mold will not be opened during the injection process. It mainly consists of a mold clamping device, a mold adjusting mechanism, an ejection mechanism, front and rear fixed templates, and a moving... The injection molding machine consists of a moving mold plate, a mold closing cylinder, and a safety protection mechanism. The hydraulic system provides power for various mechanical actions of the injection molding machine, including mold opening and closing, injection, etc. It mainly consists of an oil pump, a motor, and various hydraulic components. By controlling the oil pressure and flow, it meets the various requirements of the injection molding process. The electrical control system works in conjunction with the hydraulic system to control the operation of various parts of the injection molding machine, such as temperature, pressure, and speed, to ensure that the injection molding process is carried out accurately according to the process requirements. The cooling system is used to quickly cool the injection-molded parts to ensure that the plastic solidifies in the mold. The cooling system usually includes a water system for cooling the hydraulic oil, cooling the hopper area, and cooling the mold. This solution only makes improvements to the feeding cylinder at the feeding device of the injection molding machine.
[0006] Preferably, the top surface of the feeding cylinder and both ends of the horizontal plate are provided with end caps, which together with the horizontal plate form a circular shape. A handle is fixedly connected to the top surface of each end cap, allowing the end caps to be opened and closed to pour plastic granules for making automotive rubber parts into the feeding cylinder. When the discharge port is misaligned with the annular groove, a baffle plate can support the poured plastic granules. The feeding cylinder includes a discharge pipe, the output end of which corresponds to the input end of the extrusion cylinder. The propeller is located inside the discharge pipe opening. When the motor is started, the extended shaft rotates under the action of the motor output shaft, thereby causing the propeller to rotate and the movable disc to rotate. A convex rod can drive the agitator to rotate. When the movable disc rotates... When the extended shaft rotates, the annular groove rotates as well. When the annular groove aligns with the discharge port, the movable disc no longer obstructs the discharge port. The plastic granules on the baffle plate can fall below the movable disc through the discharge port and the annular groove, and then enter the extrusion cylinder through the discharge pipe. When the annular groove is misaligned with the discharge port, the movable disc will obstruct the discharge port to prevent the plastic granules at the baffle plate from falling. By intermittently cooperating with the discharge port through the annular groove, intermittent feeding can be achieved to avoid excessive feeding at one time. At the same time, the rotating propeller can transport the plastic granules at the discharge pipe to avoid blockage, improve the stability of material conveying, and avoid intermittent feeding.
[0007] Preferably, a protruding rod is fixedly connected to the top surface of the agitator, and a ring is fixedly connected to the upper part of the side wall of the extension shaft. The end of the protruding rod away from the agitator is fixedly connected to the outer side wall of the ring. There are two agitator blades, and the bottom surfaces of both agitator blades are in contact with the top surface of the baffle plate. When the extension shaft rotates, the agitator blades can rotate through the ring and under the action of the protruding rod. The rotating agitator blades are used to agitate the plastic particles on the baffle plate, so that the plastic particles are pushed to the discharge port. The baffle plate includes a protruding cylinder. The axis of the convex cylinder coincides with the axis of the baffle plate. The extension shaft is located inside the opening of the convex cylinder and is rotatably connected to the convex cylinder. The connection between the convex cylinder and the baffle plate is seamless to prevent plastic particles from accumulating at the connection between the convex cylinder and the baffle plate. A base is provided on the side wall of the motor. The bottom surface of the base is fixedly connected to the top surface of the horizontal plate. The motor is installed through the base. When the motor is started, the extension shaft rotates under the action of the motor output shaft, thereby causing the propeller to rotate and the movable disc to rotate.
[0008] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0009] 1. In this utility model, when plastic granules for making automotive rubber parts are poured into the feeding cylinder, starting the motor can cause the movable disc to rotate. When the annular groove corresponds to the discharge port, the plastic granules on the baffle plate can fall below the movable disc through the discharge port and the annular groove, and then enter the extrusion cylinder through the discharge pipe. When the annular groove is misaligned with the discharge port, the movable disc will block the discharge port to prevent the plastic granules at the baffle plate from falling. By intermittently cooperating with the discharge port through the annular groove, the intermittent feeding function can be achieved to avoid feeding too much material at once.
[0010] 2. In this utility model, during intermittent feeding, the rotating extended shaft allows the agitator and propeller to rotate together. The rotating agitator agitates the plastic particles on the baffle plate, pushing them to the discharge port for falling through. The rotating propeller transports the plastic particles through the discharge pipe to prevent blockage, improve the stability of material conveying, and avoid intermittent feeding. Attached Figure Description
[0011] 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 these drawings without creative effort.
[0012] Figure 1 is a schematic diagram of the overall structure of this utility model.
[0013] Figure 2 is a schematic diagram of the internal structure of the feeding cylinder of this utility model.
[0014] Figure 3 is a schematic diagram of the cooperation between the baffle plate and the movable plate of this utility model.
[0015] Figure 4 is a schematic diagram of the baffle plate structure of this utility model.
[0016] In the diagram: 1. Base; 2. Shell; 3. Extrusion cylinder; 4. Feeding cylinder; 5. Support; 6. Horizontal plate; 7. Motor; 8. Base; 9. End cap; 10. Extension shaft; 11. Propeller; 12. Ring sleeve; 13. Protruding rod; 14. Agitator; 15. Baffle plate; 16. Protruding cylinder; 17. Discharge port; 18. Movable plate; 19. Annular groove; 20. Discharge pipe. Detailed Implementation
[0017] 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 protection scope of the present utility model.
[0018] Example: As shown in Figures 1-4, this utility model provides an injection molding machine for producing automotive rubber parts, including a base 1, a housing 2 fixedly connected to the top surface of the base 1, an extrusion cylinder 3 fixedly connected to the side wall of the housing 2, a feeding cylinder 4 arranged above the housing 2, a horizontal plate 6 fixedly connected to the middle of the top surface of the feeding cylinder 4, a motor 7 arranged above the horizontal plate 6, an extension shaft 10 fixedly connected to the output shaft end of the motor 7, a propeller 11 fixedly connected to the bottom end of the extension shaft 10, a baffle plate 15 fixedly connected to the inner side wall of the feeding cylinder 4, a discharge port 17 through the top surface of the baffle plate 15, a movable plate 18 fixedly connected to the side wall of the extension shaft 10 and below the baffle plate 15, an annular groove 19 through the top surface of the movable plate 18, the annular groove 19 corresponding to the discharge port 17, and an agitator 14 arranged above the baffle plate 15.
[0019] A bracket 5 is fixedly connected to the outer wall of the feeding cylinder 4, and the bottom surface of the bracket 5 is fixedly connected to the top surface of the housing 2.
[0020] By adopting the above technical solution, the bracket 5 is used to support and fix the feed cylinder 4. The injection molding machine consists of an injection system, a mold clamping system, a hydraulic system, a pneumatic control system, and a cooling system. The injection system is responsible for heating the plastic raw material and injecting it into the mold. The injection system includes a plasticizing device and a power transmission device. The plasticizing device mainly consists of a feeding device, a barrel, a screw, and a nozzle, while the power transmission device includes an injection cylinder and an injection seat moving cylinder. The mold clamping system is used to fix the mold and provide sufficient pressure to ensure that the mold will not be opened during the injection process. It mainly consists of a mold clamping device, a mold adjusting mechanism, an ejection mechanism, front and rear fixed platens, a moving platen, a mold clamping cylinder, and a safety protection mechanism. The hydraulic system provides power for various mechanical actions of the injection molding machine, including mold opening and closing, injection, etc. It mainly consists of oil pumps, motors and various hydraulic components. By controlling the oil pressure and flow, it meets the various requirements of the injection molding process. The electrical control system works in conjunction with the hydraulic system to control the operation of various parts of the injection molding machine, such as temperature, pressure and speed, to ensure that the injection molding process is carried out accurately according to the process requirements. The cooling system is used to quickly cool the injection molded parts to ensure that the plastic solidifies in the mold. The cooling system usually includes a water system for cooling the hydraulic oil, cooling the hopper area and cooling the mold. This solution only makes improvements to the feeding cylinder 4 at the feeding device in the injection molding machine.
[0021] The top surface of the feeding cylinder 4 and both ends of the horizontal plate 6 are provided with end caps 9. The two end caps 9 and the horizontal plate 6 form a circular shape, and the top surface of the end caps 9 is fixedly connected with a handle.
[0022] By adopting the above technical solution, the end cap 9 can be opened and closed by the handle to pour the plastic granules for making automotive rubber parts into the feeding cylinder 4. When the discharge port 17 is misaligned with the annular groove 19, the baffle plate 15 can support the poured plastic granules.
[0023] The feeding cylinder 4 includes a discharge pipe 20, the output end of which corresponds to the input end of the extrusion cylinder 3, and the propeller 11 is located inside the opening of the discharge pipe 20.
[0024] By adopting the above technical solution, when the motor 7 is started, the extended shaft 10 rotates under the action of the output shaft of the motor 7, thereby causing the propeller 11 to rotate and the movable disk 18 to rotate. The convex rod 13 can drive the agitator 14 to rotate. When the movable disk 18 rotates around the axis of the extended shaft 10, the annular groove 19 rotates. When the annular groove 19 corresponds to the discharge port 17, the movable disk 18 no longer obstructs the discharge port 17, and the plastic particles on the baffle plate 15 can fall through the discharge port 17 and the annular groove 19. Below the movable disc 18, the material enters the extrusion cylinder 3 through the discharge pipe 20. When the annular groove 19 is misaligned with the discharge port 17, the movable disc 18 will block the discharge port 17 to prevent the plastic particles at the baffle disc 15 from falling. By intermittently cooperating with the discharge port 17 through the annular groove 19, the material can be fed intermittently to avoid feeding too much at once. At the same time, the rotating propeller 11 can transport the plastic particles at the discharge pipe 20 to avoid blockage, improve the stability of material conveying, and avoid intermittent feeding.
[0025] A protruding rod 13 is fixedly connected to the top surface of the agitator 14, and a ring 12 is fixedly connected to the upper side wall of the extension shaft 10. The end of the protruding rod 13 away from the agitator 14 is fixedly connected to the outer side wall of the ring 12. There are two agitators 14, and the bottom surfaces of both agitators 14 are in contact with the top surface of the baffle plate 15.
[0026] By adopting the above technical solution, when the extended shaft 10 rotates, the agitator 14 can be rotated by the ring sleeve 12 and the action of the protruding rod 13. The rotating agitator 14 is used to agitate the plastic particles on the baffle plate 15 so that the plastic particles are pushed to the discharge port 17.
[0027] The baffle plate 15 includes a protruding cylinder 16, the axis of which coincides with the axis of the baffle plate 15. An extension shaft 10 is located inside the opening of the protruding cylinder 16 and is rotatably connected to the protruding cylinder 16.
[0028] By adopting the above technical solution, the connection between the protruding cylinder 16 and the baffle plate 15 is seamless, so as to avoid the accumulation of plastic particles at the connection between the protruding cylinder 16 and the baffle plate 15.
[0029] The side wall of the motor 7 is provided with a base 8, and the bottom surface of the base 8 is fixedly connected to the top surface of the horizontal plate 6.
[0030] By adopting the above technical solution, the motor 7 is installed on the base 8. When the motor 7 is started, the extended shaft 10 rotates under the action of the output shaft of the motor 7, thereby causing the propeller 11 to rotate and the movable disk 18 to rotate.
[0031] Working principle: When this utility model is in use, when it is necessary to produce automotive rubber parts by injection molding machine, the end cap 9 is opened and closed by the handle to pour the plastic granules for making automotive rubber parts into the feeding cylinder 4.
[0032] Simultaneously, the motor 7 is started, and the extended shaft 10 rotates under the action of the output shaft of the motor 7, which causes the propeller 11 to rotate and the movable disk 18 to rotate. The agitator 14 can be driven to rotate through the protruding rod 13. When the movable disk 18 rotates around the axis of the extended shaft 10, the annular groove 19 can rotate. When the annular groove 19 corresponds to the discharge port 17, the movable disk 18 no longer blocks the discharge port 17. The plastic particles on the baffle 15 can fall below the movable disk 18 through the discharge port 17 and the annular groove 19, and then enter the extrusion cylinder 3 through the discharge pipe 20.
[0033] When the annular groove 19 is misaligned with the discharge port 17, the movable disc 18 will block the discharge port 17 to prevent the plastic particles at the baffle disc 15 from falling. By intermittently cooperating with the discharge port 17 through the annular groove 19, the material can be discharged intermittently to avoid discharging too much material at once. At the same time, the rotating propeller 11 can transport the plastic particles at the discharge pipe 20 to avoid blockage, improve the stability of material conveying, and avoid intermittent feeding.
[0034] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.
[0035] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. An injection molding machine for producing automotive rubber parts, comprising a base (1), characterized in that: A housing (2) is fixedly connected to the top surface of the base (1). An extrusion cylinder (3) is fixedly connected to the side wall of the housing (2). A feeding cylinder (4) is provided above the housing (2). A horizontal plate (6) is fixedly connected to the middle of the top surface of the feeding cylinder (4). A motor (7) is provided above the horizontal plate (6). An extension shaft (10) is fixedly connected to the output shaft end of the motor (7). A propeller (11) is fixedly connected to the bottom end of the extension shaft (10). A baffle plate (15) is fixedly connected to the inner wall of the feeding cylinder (4). A discharge port (17) is provided through both sides of the top surface of the baffle plate (15). A movable plate (18) is fixedly connected to the side wall of the extension shaft (10) and below the baffle plate (15). An annular groove (19) is provided through both sides of the top surface of the movable plate (18). The annular groove (19) corresponds to the discharge port (17). An agitator (14) is provided above the baffle plate (15).
2. The injection molding machine for producing a rubber part of an automobile according to claim 1, wherein A bracket (5) is fixedly connected to the outer wall of the feeding cylinder (4), and the bottom surface of the bracket (5) is fixedly connected to the top surface of the shell (2).
3. The injection molding machine for producing automotive rubber parts as described in claim 1, characterized in that, The top surface of the feeding cylinder (4) and two locations on the horizontal plate (6) are provided with end caps (9). The two end caps (9) and the horizontal plate (6) form a circular shape. The top surface of the end caps (9) is fixedly connected with a handle.
4. The injection molding machine for producing a rubber part of an automobile according to claim 1, wherein The feeding cylinder (4) includes a discharge pipe (20), the output end of which corresponds to the input end of the extrusion cylinder (3), and the propeller (11) is located inside the opening of the discharge pipe (20).
5. The injection molding machine for producing automotive rubber parts as described in claim 1, characterized in that, A protruding rod (13) is fixedly connected to the top surface of the agitator (14), and a ring sleeve (12) is fixedly connected to the upper part of the side wall of the extension shaft (10). The end of the protruding rod (13) away from the agitator (14) is fixedly connected to the outer side wall of the ring sleeve (12).
6. The injection molding machine for producing a rubber part of an automobile according to claim 1, wherein There are two agitators (14), and the bottom surfaces of both agitators (14) are in contact with the top surface of the baffle plate (15).
7. The injection molding machine for producing a rubber part of an automobile according to claim 1, wherein The baffle plate (15) includes a protruding cylinder (16), the axis of which coincides with the axis of the baffle plate (15), the extension shaft (10) is located inside the opening of the protruding cylinder (16), and the extension shaft (10) is rotatably connected to the protruding cylinder (16).
8. The injection molding machine for producing automotive rubber parts as described in claim 1, characterized in that, The motor (7) has a base (8) on its side wall, and the bottom surface of the base (8) is fixedly connected to the top surface of the horizontal plate (6).