Plasticizing injection device of juxtaposed injection machine

Abstract

The utility model discloses a plasticizing injection device of a juxtaposed injection machine, which comprises at least one group of plasticizing device and an injection oil cylinder, the output end of the plasticizing device is respectively connected with a connecting piece, the connecting piece is connected with a nozzle body, and the connecting piece is communicated with the nozzle body through a flow channel. The injection oil cylinder is connected with the plasticizing device and drives the plasticizing device to reciprocate towards the direction of the connecting piece, and after being plasticized in the plasticizing device, the sizing material is extruded into the connecting piece by the plasticizing device, flows into the nozzle body through the runner and flows out of a nozzle of the nozzle body. According to the plasticizing injection device of the juxtaposed injection machine, provided by the utility model, at least one group of plasticizing device and the injection oil cylinder are arranged, so that multiple times of plasticizing injection of sizing materials can be completed during production, and the production efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber injection molding machine equipment, in particular to a plasticizing injection device of a juxtaposed double injection molding machine. Background Art

[0002] The rubber injection machine mainly grinds the rubber material into molten rubber through the plasticizing screw. The molten rubber is stored in the injection barrel under the action of plasticizing force and continuously flows to the nozzle under the action of hydraulic pressure and flows out from the nozzle. The strip rubber is first ground by the plasticizing screw, and then melted into a molten state by heating or friction heat generated by the rotation of the plasticizing screw. Finally, it flows out of the nozzle under the push of the injection cylinder. The current rubber injection machine uses a set of injection units for its plasticizing device and injection device. It can only complete the injection of a small amount of rubber once during production, with low production efficiency, and cannot meet the needs of large-scale production. Utility Model Content

[0003] The utility model provides a plasticizing injection device of a juxtaposed injection machine. By arranging at least one set of plasticizing devices and an injection oil cylinder, multiple plasticizing injections of rubber materials can be completed during production, thereby effectively improving production efficiency.

[0004] In order to solve the above problems, the technical solution provided by the utility model is: a juxtaposed injection machine plasticizing injection device, comprising at least one group of plasticizing devices and injection cylinders, the output ends of the plasticizing devices are respectively connected with connecting pieces, the connecting pieces are connected with nozzle bodies, the connecting pieces and the nozzle bodies are communicated through flow channels, the injection cylinder is connected with the plasticizing devices, and drives the plasticizing devices to reciprocate toward the connecting pieces, after the rubber material is plasticized in the plasticizing devices, the plasticizing devices squeeze the rubber material into the connecting pieces and flow into the nozzle body through the flow channels, and then flow out from the nozzle of the nozzle body.

[0005] The utility model adopts the above technical solution, and the injection cylinder drives the plasticizing device, so that after the rubber material is plasticized into the molten rubber material, the plasticizing device, driven by the injection cylinder, squeezes the molten rubber material into the connecting piece, and the rubber material continuously flows into the nozzle body through the flow channel under the push of the subsequent rubber material, and finally flows out from the nozzle of the nozzle body. The utility model sets at least one set of plasticizing devices and injection cylinders, so that multiple plasticizing devices and injection cylinders work at the same time, and the rubber material enters the nozzle body and is ejected from the nozzle, which greatly improves the production efficiency and meets the needs of mass production.

[0006] The above-mentioned plasticizing injection device of the juxtaposed injection machine, the connecting piece includes a connecting body and a flow channel plate, the flow channel plate is arranged on the connecting body, the nozzle body is connected to the flow channel plate through the connecting plate, and the flow channel runs through the connecting body, the flow channel plate, the connecting plate and the nozzle body. The molten rubber flows into the nozzle body through the connecting body, the flow channel plate and the flow channel on the connecting plate, realizing the transportation of the rubber, and finally ejected from the nozzle.

[0007] The above-mentioned plasticizing injection device of the juxtaposed injection machine is provided with a nozzle body and a connecting plate, and two check valves are provided on the connecting plate. The check valves are connected to the two flow channel plates respectively, and the flow channel of the check valve outlet is connected to the nozzle body. The connecting body is connected to the nozzle body through the connecting plate, and two check valves are provided on the connecting plate to prevent the rubber material from flowing back. When the rubber material flows out from one of the plasticizing devices, the rubber material flows out from the check valve corresponding to the plasticizing device on the connecting plate, and a part of the rubber material can flow through the flow channel in the reverse direction through the output end of the other check valve, so that the check valve is reversely cut off, and the other part of the rubber material enters the single nozzle body connected to the connecting plate through the flow channel. Through the coordination and adjustment of the check valve, the rubber material is alternately injected from the two plasticizing devices in sequence. When one of the plasticizing devices injects the rubber material, the other plasticizing device grinds the rubber material to make the rubber material form a molten state; the two plasticizing devices independently perform plasticizing and injection actions, and realize the plasticizing and injection of different plasticizing devices, which improves the production efficiency. At the same time, the provision of a nozzle body can simplify the structure and reduce the cost of the equipment.

[0008] In the above-mentioned plasticizing injection device of the juxtaposed injection machine, the check valve includes a check valve seat and a flow channel steel ball disposed therein, and the flow channel steel ball is placed on the outlet of the check valve seat. The rubber material pushes the flow channel steel ball from the upper end of the check valve seat to leave the opening of the check valve seat, and the rubber material can pass through the check valve; when the rubber material pushes the flow channel steel ball from the lower end of the check valve seat, the flow channel steel ball is squeezed to close the upper end opening of the check valve seat, and the rubber material on the upper part of the check valve cannot flow through the check valve, thereby realizing the two plasticizing devices to perform plasticizing injection alternately in sequence.

[0009] The above-mentioned plasticizing injection device of the juxtaposed injection machine, the injection oil cylinder includes a cylinder barrel, a front cover, a rear cover, an injection piston rod and a piston, the piston is connected to the rear end of the injection piston rod, the injection piston rod is movably arranged in the piston cavity surrounded by the front cover, the cylinder barrel and the rear cover, and the plasticizing device is arranged on the injection piston rod. The piston and the injection piston rod move in the piston cavity, and the injection piston rod drives the plasticizing device to reciprocate, squeezes the plasticized molten rubber into the connecting piece, and realizes the injection action.

[0010] The above-mentioned plasticizing injection device of the juxtaposed injection machine includes a plasticizing motor, a plasticizing screw and a barrel. The plasticizing motor is arranged on the injection piston rod through a bearing body. One end of the plasticizing screw is connected to the plasticizing motor and the other end is inserted into the barrel. The end of the barrel is connected to a connecting piece. The plasticizing motor is arranged on the injection piston rod through a bearing body. The plasticizing motor drives the plasticizing screw to rotate. The plasticizing screw penetrates into the barrel and grinds the rubber material in the barrel while rotating. The heat of grinding makes the rubber material molten to achieve plasticization of the rubber material.

[0011] In the above-mentioned plasticizing injection device of the juxtaposed injection machine, the plasticizing motor is coaxially connected with the plasticizing screw through a transmission shaft. The drive shaft of the plasticizing motor and the plasticizing screw are connected through the transmission shaft, which is convenient for assembly.

[0012] The above-mentioned plasticizing injection device of the juxtaposed injection machine also includes an injection barrel, which is connected to the connecting piece, and the barrel is movably arranged in the inner cavity of the injection barrel. The molten rubber in the barrel enters the injection barrel from the opening at the end of the barrel. When the molten rubber accumulates to a certain amount, the barrel is driven by the injection cylinder to follow the injection piston rod to move toward the end of the injection barrel, and the rubber between the inner end of the injection barrel and the end of the barrel is squeezed and injected.

[0013] The above-mentioned plasticizing injection device of the juxtaposed injection machine also includes a mounting seat, on which a pillar is provided, and at least one set of plasticizing devices is arranged on the pillar. The mounting seat is used to install and fix the plasticizing device.

[0014] The plasticizing injection device of the above-mentioned juxtaposed injection machine has a support plate at the top of the pillar, a lifting cylinder is provided on the support plate, the plasticizing device can slide on the pillar through a sliding support, and the lifting cylinder is connected to the sliding support. The lifting cylinder moves the plasticizing device up and down to adjust the injection position.

[0015] The beneficial effects achieved by the utility model are: multiple plasticizing devices are realized to perform plasticizing injection and glue feeding in rotation, and a large amount of glue is completed. The plasticizing injection of a large amount of glue can be completed on the same machine, and the glue can be quickly filled into the mold cavity, saving product molding time and improving production efficiency; the two plasticizing devices can be controlled separately, and the use is flexible to improve efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of a plasticizing injection device of a juxtaposed injection machine according to an embodiment of the utility model;

[0017] Figure 2 It is a structural schematic diagram of another angle of a plasticizing injection device of a juxtaposed injection machine according to an embodiment of the utility model;

[0018] Figure 3 It is a schematic diagram of a vertical cross-sectional structure of a plasticizing injection device of a juxtaposed injection machine according to an embodiment of the utility model;

[0019] Figure 4 The utility model is a juxtaposed injection machine plasticizing injection device vertically Figure 3 A vertical cross-sectional structural diagram;

[0020] Figure 5 It is a schematic diagram of the transverse cross-sectional structure of a plasticizing injection device of a juxtaposed injection machine according to an embodiment of the utility model;

[0021] Figure 6 yes Figure 3 A schematic structural diagram of a connecting piece of a plasticizing injection device of a juxtaposed injection machine and a nozzle body being connected through a flow channel in an embodiment of the utility model;

[0022] Figure 7 It is a schematic cross-sectional structure diagram of an injection cylinder of an embodiment of the utility model;

[0023] Figure 8 It is a structural schematic diagram of the plasticizing device of an embodiment of the utility model;

[0024] Fig. 9 It is a schematic diagram of the partial decomposition structure of an embodiment of the utility model.

[0025] Explanation of the accompanying drawings: plasticizing device 1, plasticizing motor 11, plasticizing screw 12, barrel 13, bearing body 14, transmission shaft 15, injection barrel 16, sliding support 17, feed port 18, injection cylinder 2, cylinder barrel 21, front end cover 22, rear end cover 23, injection piston rod 24, piston 25, connecting part 3, connecting body 31, flow channel plate 32, nozzle body 4, nozzle 41, flow channel a, connecting plate 5, check valve 51, check valve seat 511, flow channel steel ball 512, mounting seat 6, pillar 61, support plate 62, lifting cylinder 7. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0027] Reference Figures 1 to 9 As shown, a plasticizing injection device of a juxtaposed injection machine comprises at least one set of plasticizing devices 1 and injection cylinders 2. The output ends of the plasticizing devices 1 are respectively connected with connectors 3, the connectors 3 are connected with nozzle bodies 4, the connectors 3 and the nozzle bodies 4 are communicated with each other through flow channels a, the injection cylinders 2 are connected with the plasticizing devices 1, and drive the plasticizing devices 1 to reciprocate toward the connectors 3. After the rubber material is plasticized in the plasticizing devices 1, the plasticizing devices 1 squeeze the rubber material into the connectors 3 and flow into the nozzle bodies 4 through the flow channels a, and then flow out from the nozzles 41 of the nozzle bodies 4.

[0028] The connector 3 includes a connector 31 and a flow channel plate 32 . The flow channel plate 32 is disposed on the connector 31 . The nozzle body 4 is connected to the flow channel plate 32 via the connector plate 5 . The flow channel a passes through the connector 31 , the flow channel plate 32 , the connector plate 5 and the nozzle body 4 .

[0029] The nozzle body 4 and the connecting plate 5 are provided with one, and two check valves 51 are provided on the connecting plate 5 . The check valves 51 are respectively connected to the two flow channel plates 32 , and the flow channels at the outlets of the check valves 51 are connected to the nozzle body 4 .

[0030] The check valve 51 includes a check valve seat 511 and a flow channel steel ball 512 disposed therein. The flow channel steel ball 512 is placed on the outlet of the check valve seat 511 . When sharing a nozzle body 4, one of the plasticizing devices 1 conveys the rubber material through the flow channel a through the connecting body 31, the flow channel plate 32, and the connecting plate 5, pushes open the flow channel steel ball 512 connected to the plasticizing device 1, and causes the flow channel steel ball 512 to separate from the inlet of the check valve seat 511. The molten rubber material flows out from the check valve 51, and when passing through the flow channel on the connecting plate 5, a part of it flows through another check valve 51 on the connecting plate 5, so that the flow channel steel ball 512 in the check valve seat 511 presses the inlet of the check valve seat 511 upward, and the rubber material of the other plasticizing device 1 cannot flow out from the check valve 51, and the other plasticizing device 1 performs the molten rubber plasticizing process; after sealing the other check valve 51, the molten rubber material enters the nozzle body 4 through the flow channel, and is finally ejected from the nozzle 41 in the nozzle body 4, so that the two plasticizing devices 1 can perform the melting rubber material and injection action separately.

[0031] The injection cylinder 2 includes a cylinder 21, a front cover 22, a rear cover 23, an injection piston rod 24 and a piston 25. The piston 25 is connected to the rear end of the injection piston rod 24. The injection piston rod 24 is movably arranged in a piston cavity surrounded by the front cover 22, the cylinder 21 and the rear cover 23. The plasticizing device 1 is arranged on the injection piston rod 24. The injection cylinder 21 drives the plasticizing motor 11, the linkage shaft 15, the plasticizing screw 12 and the barrel 13 to reciprocate toward the connecting member 3 through its injection piston rod 24. The barrel 13 moves in the injection barrel 16, squeezes the molten rubber between its output end and the injection barrel 16, and squeezes the rubber into the flow channel a of the connecting member 3 to achieve the injection action.

[0032] The plasticizing device 1 includes a plasticizing motor 11, a plasticizing screw 12 and a barrel 13. The plasticizing motor 11 is arranged on the injection piston rod 23 through a bearing body 14. One end of the plasticizing screw 12 is connected to the plasticizing motor 11 and the other end is inserted into the barrel 13. The end of the barrel 13 is connected to the connecting piece 3. The plasticizing motor 11 is coaxially connected to the plasticizing screw 12 through a transmission shaft 15. The plasticizing device 1 also includes an injection barrel 16, which is connected to the connecting piece 3. The barrel 13 is movably arranged in the inner cavity of the injection barrel 16. The strip-shaped rubber material enters the barrel 13 from the feed port 18 of the barrel 13. Through the rotation and grinding of the plasticizing screw 12, the rubber material gradually flows toward the outlet end of the barrel 13, that is, away from the plasticizing screw 12.

[0033] In other embodiments, the barrel 13 may be fixed, and the injection cylinder 2 may be used to drive the plasticizing screw 12 to move axially in the barrel 13, thereby extruding the rubber material for injection.

[0034] The utility model also includes a mounting seat 6, on which a support 61 is provided, and at least one set of plasticizing devices 1 is provided on the support 61. A support plate 62 is provided at the top of the support 61, and a lifting cylinder 7 is provided on the support plate 62. The plasticizing device 1 can slide on the support 61 through a sliding support 17, and the lifting cylinder 7 is connected to the sliding support 17.

[0035] In the specific implementation of the utility model, the plasticizing device 1 is slidably arranged on the support 61 through the sliding support 17, and the lifting cylinder 7 is connected to the sliding support 17 to control the position of the plasticizing device 1. Specifically, the plasticizing device 1 is arranged on the injection piston rod 24, and the front end cover 22 of the injection cylinder 2 is fixed on the sliding support 17. Thus, the injection cylinder 2 is connected to the plasticizing device 1, and the position can be adjusted in the vertical direction on the support 61 through the control of the lifting cylinder 7.

[0036] In this embodiment, at least one set of plasticizing device 1 and injection cylinder 2 is provided to realize synchronous or independent action of multiple sets of plasticizing device 1 and injection cylinder 2, and can inject glue simultaneously or alternately, which greatly improves production efficiency.

[0037] Furthermore, the plasticizing devices 1 are respectively connected to the connecting pieces 3, the connecting pieces 3 are connected to a connecting plate 5, and two check valves 51 are arranged on the connecting plate 5, so that the two plasticizing devices 1 share a connecting plate 5 and a nozzle body 4, so that when one of the plasticizing devices 1 is performing injection molding, the other plasticizing device 1 is performing the action of plasticizing the molten rubber, realizing independent first-in-first-out operation, being flexible to use and improving production efficiency, and meeting the needs of large-scale melt injection operations.

[0038] In this embodiment, at least one set of plasticizing device 1 and injection cylinder 2 can be set to no less than two, and a corresponding number can be set according to actual production needs to meet the needs.

[0039] In summary, the utility model has been made into actual samples and tested for multiple times as described in the specification and the illustrations. From the results of the test, it can be proved that the utility model can achieve its intended purpose, and its practical value is beyond doubt. The above embodiments are only used to illustrate the utility model, and are not intended to limit the utility model in any form. Any person with ordinary knowledge in the technical field can make equivalent embodiments that are partially changed or modified by the technical content disclosed in the utility model without departing from the scope of the technical features of the utility model, and they still fall within the scope of the technical features of the utility model without departing from the technical features of the utility model.

Claims

1. A plasticizing injection device for a juxtaposed injection machine, characterized in that: The invention comprises at least one set of plasticizing devices (1) and injection cylinders (2); the output ends of the plasticizing devices (1) are respectively connected to connecting pieces (3); the connecting pieces (3) are connected to a nozzle body (4); the connecting pieces (3) and the nozzle body (4) are connected via a flow channel (a); the injection cylinder (2) is connected to the plasticizing devices (1) and drives the plasticizing devices (1) to move back and forth in the direction of the connecting pieces (3); after the rubber material is plasticized in the plasticizing devices (1), the plasticizing devices (1) squeeze the rubber material into the connecting pieces (3) and the rubber material flows into the nozzle body (4) through the flow channel (a) and flows out from a nozzle (41) of the nozzle body (4).

2. The plasticizing injection device of the juxtaposed injection machine according to claim 1, characterized in that: The connecting member (3) comprises a connecting body (31) and a flow channel plate (32); the flow channel plate (32) is arranged on the connecting body (31); the nozzle body (4) is connected to the flow channel plate (32) via a connecting plate (5); and the flow channel (a) passes through the connecting body (31), the flow channel plate (32), the connecting plate (5) and the nozzle body (4).

3. The plasticizing injection device of the juxtaposed injection machine according to claim 2, characterized in that: The nozzle body (4) and the connecting plate (5) are provided with one, the connecting plate (5) is provided with two check valves (51), the check valves (51) are respectively connected to the two flow channel plates (32), and the flow channels at the outlets of the check valves (51) are connected to the nozzle body (4).

4. The plasticizing injection device of the juxtaposed injection machine according to claim 3, characterized in that: The check valve (51) comprises a check valve seat (511) and a flow channel steel ball (512) arranged therein, and the flow channel steel ball (512) is placed on the outlet of the check valve seat (511).

5. The plasticizing injection device of the juxtaposed injection machine according to claim 1, characterized in that: The injection oil cylinder (2) comprises a cylinder barrel (21), a front end cover (22), a rear end cover (23), an injection piston rod (24) and a piston (25); the piston (25) is connected to the rear end of the injection piston rod (24); the injection piston rod (24) is movably arranged in a piston cavity surrounded by the front end cover (22), the cylinder barrel (21) and the rear end cover (23); and the plasticizing device (1) is arranged on the injection piston rod (24).

6. The plasticizing injection device of the juxtaposed injection machine according to claim 5, characterized in that: The plasticizing device (1) comprises a plasticizing motor (11), a plasticizing screw (12) and a barrel (13); the plasticizing motor (11) is arranged on an injection piston rod (24) via a bearing body (14); one end of the plasticizing screw (12) is connected to the plasticizing motor (11) and the other end is inserted into the barrel (13); the end of the barrel (13) is connected to a connecting piece (3).

7. The plasticizing injection device of the juxtaposed injection machine according to claim 6, characterized in that: The plasticizing motor (11) is coaxially connected to the plasticizing screw (12) via a transmission shaft (15).

8. The plasticizing injection device of the juxtaposed injection machine according to claim 6, characterized in that: The plasticizing device (1) further comprises an injection barrel (16), wherein the injection barrel (16) is connected to the connecting piece (3), and the barrel (13) is movably arranged in the inner cavity of the injection barrel (16).

9. The plasticizing injection device of the juxtaposed injection machine according to claim 1, characterized in that: It also comprises a mounting seat (6), on which a pillar (61) is provided, and on which the at least one set of plasticizing devices (1) is provided.

10. The plasticizing injection device of the juxtaposed injection machine according to claim 9, characterized in that: A support plate (62) is provided at the top end of the support column (61), and a lifting cylinder (7) is provided on the support plate (62). The plasticizing device (1) can slide on the support column (61) via a sliding support (17), and the lifting cylinder (7) is connected to the sliding support (17).

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