Rubber injection machine for top side injection
By designing a rubber injection machine for injection on the top side, the existing injection machine has solved the problems of excessive height of the whole machine, excessive height of the feeding barrel, inconvenient molding, and large energy consumption, and the effect of appropriate feeding height, saving energy consumption, and reducing the height of the whole machine is achieved.
Patent Information
- Application Number
- CN202421934567.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-08-09
AI Technical Summary
The existing rubber injection machines have problems such as excessive height of the whole machine, excessive height of the feed barrel, inconvenient molding, and large energy consumption, which are difficult to adapt to the situation of limited height of the factory building and high labor intensity for workers.
A rubber injection machine with top side injection is designed, with the feed barrel arranged horizontally, the feeding height is reduced, the injection assembly is horizontally, the plasticizing assembly is vertically arranged, the whole machine is compact, the cold runner assembly and the mold clamping assembly are optimized, and the hydraulic system is located at the bottom of the frame.
It has achieved the effect of suitable feeding height, reduced labor intensity for workers, less injection pressure loss, saving energy consumption, lowered overall machine height, and wider adaptation to the factory height.
Smart Images
Figure CN222933197U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an injection machine, in particular to a rubber injection machine with top-side injection. Background Art
[0002] In the current technology, the injection structures of rubber injection machines include central top injection, horizontal central top injection, and side bottom injection. For the central top injection machine, the machine platform is relatively high, which is not suitable for manufacturers with too low workshop height. For the horizontal central top injection, the nozzle body is relatively long, resulting in excessive injection pressure loss and high energy consumption; the feeding barrel needs to be placed obliquely, and the feeding height is too high, which causes too much labor intensity for workers. For the side bottom injection, it requires injection from bottom to top, making it inconvenient to install the mold; for example, the cold runner must be installed at the bottom, and it is inconvenient to dock the cold runner nozzle with the mold.
[0003] For the traditional central top injection structure, the overall height of the machine is too high, which is not suitable for manufacturers with too low factory buildings, and the feeding barrel moves with the injection table, which easily causes the entire injection table to be eccentric. For the traditional horizontal central top injection, the feeding barrel is placed obliquely with too high a height, making it inconvenient to feed. The feeding barrel is located on the right side of the mold clamping, occupying too much space. For the traditional side bottom injection, this structure occupies a large area, is inconvenient to install the mold, and has a high labor intensity for installing the mold.
[0004] Therefore, it is necessary to solve the above technical problems. Summary of the Invention
[0005] The utility model aims at the above technical problems and provides a rubber injection machine with top-side injection, which has a suitable feeding height, reduces the labor intensity of workers; has less injection pressure loss and saves energy consumption; has a compact overall layout and saves factory building space; and the overall height of the machine is shorter than that of the traditional injection structure, adapting to a wider range of factory building heights.
[0006] To achieve the above object, the technical solution of the utility model is:
[0007] A rubber injection machine with top-side injection includes a frame, on which a feeding barrel assembly, a plasticizing assembly, and an injection assembly are provided. The feeding barrel assembly is horizontally arranged in the middle of the frame, and the injection assembly is horizontally arranged on the top of the frame; the plasticizing assembly is vertically arranged, with one end connected to the feeding barrel assembly and the other end connected to the injection assembly. The feeding barrel assembly and the injection assembly are located on the same side of the plasticizing assembly.
[0008] The injection assembly of the rubber injection machine with top-side injection is horizontally arranged on the top of the frame, with lateral feeding from above. The plasticizing assembly is vertically arranged, enabling the feeding barrel to be placed horizontally, and the feeding height is significantly lower than that of the traditional structure, with a suitable operating height; moreover, the feeding barrel assembly and the injection assembly are on the same side, making the structure more compact and saving the floor space of the machine.
[0009] For a further optimized solution, a cold runner assembly, a mold clamping assembly and a hydraulic system are further provided on the frame. The cold runner assembly is arranged on the top of the frame and connected to the injection assembly. The mold clamping assembly is located below the cold runner assembly, and the hydraulic system is located below the feeding barrel assembly at the bottom of the frame.
[0010] When the rubber injection machine with side injection at the top works, after the mold clamping assembly clamps the mold, workers put rubber materials into the feeding barrel assembly. The feeding barrel assembly extrudes the rubber materials into the plasticizing assembly. The plasticizing assembly acts to plasticize the rubber materials and squeeze them into the injection assembly. After reaching the set measurement, the injection assembly injects the rubber materials into the cold runner assembly and then injects them into the mold through the cold runner.
[0011] For a further optimized solution, the feeding barrel assembly includes a feeding port, a barrel and a feeding joint. The feeding joint is connected to the plasticizing assembly. Workers feed materials into the barrel from the feeding port and then enter the plasticizing assembly from the feeding joint.
[0012] For a further optimized solution, the plasticizing assembly includes a rubber inlet, a plasticizing screw, a plasticizing barrel and a rubber outlet. The rubber inlet is connected to the feeding barrel assembly, the rubber outlet is connected to the injection assembly, and the plasticizing screw is rotatably arranged in the plasticizing barrel to plasticize the rubber materials entering from the rubber inlet and discharge them from the rubber outlet into the injection assembly. The rubber materials in the feeding barrel assembly enter the plasticizing barrel from the rubber inlet, are plasticized by the rotation of the plasticizing screw, and then enter the injection assembly from the rubber outlet.
[0013] For a further optimized solution, the injection assembly includes a plasticized rubber inlet, an injection barrel, an injection plunger and an injection nozzle. The injection plunger is located in the injection barrel. The head of the injection barrel is provided with the injection nozzle and the plasticized rubber inlet, and the plasticized rubber inlet is connected to the plasticizing assembly. The rubber materials in the plasticizing assembly enter the injection barrel from the plasticized rubber inlet and are ejected from the injection nozzle into the cold runner assembly after being extruded by the injection plunger.
[0014] For a further optimized solution, the cold runner assembly includes a cold runner plate provided with a gate and a cold runner nozzle. The gate is connected to the injection assembly, and the cold runner nozzle is connected to the mold clamping assembly. The rubber materials in the injection assembly enter the cold runner plate from the gate and are ejected from the cold runner nozzle into the mold clamping assembly.
[0015] For a further optimized solution, the mold clamping assembly includes an upper template, a moving template and a plurality of guide columns. The upper template is fixed on the upper part of the guide columns, and the moving template is slidably arranged on the guide columns to realize opening and closing of the mold with the upper template; the cold runner assembly is fixed at the lower end of the upper template. The upper template is fixed, and the moving template moves up and down to realize opening and closing of the mold.
[0016] For a further optimized solution, the feeding cylinder assembly further includes a feeding oil cylinder, a feeding oil cylinder piston rod, and a pushing piston that are connected in sequence. The pushing piston is located inside the cylinder. The feeding oil cylinder drives the pushing piston to move back and forth inside the cylinder through the feeding oil cylinder piston rod, and the pushing piston extrudes the rubber material inside the cylinder and sends it into the plasticizing assembly.
[0017] For a further optimized solution, a shuttle shaft and a check valve sleeve that cooperate with each other are provided at the rubber outlet end, and a hydraulic motor is provided at the other end to connect to the plasticizing screw. The hydraulic motor provides the power for the rotation of the plasticizing screw, and the cooperating shuttle shaft and check valve sleeve ensure the realization of the function of the rubber outlet.
[0018] For a further optimized solution, an injection oil cylinder connecting the injection plunger is provided at one end of the injection cylinder, and a central connecting body is provided at the other end. The central connecting body is provided with the plasticized rubber inlet, and the central connecting body is connected to the injection nozzle. The injection oil cylinder provides the power for the injection plunger to realize the reciprocating movement of the injection plunger inside the injection cylinder, and the injection plunger is pushed to eject the rubber material from the injection nozzle.
[0019] The utility model has the following technical advantages compared with the prior art:
[0020] For this rubber injection machine with top-side injection, the feeding height is appropriate, reducing the labor intensity of workers; the injection pressure loss is small, saving energy consumption; the overall layout of the machine is compact, saving factory space; the overall height of the machine is shorter than that of the traditional injection structure, adapting to a wider range of factory building heights. Description of the Drawings
[0021] Figure 1 is a perspective view of the rubber injection machine with top-side injection of the utility model;
[0022] Figure 2 is Figure 1 the front view of
[0023] Figure 3 is Figure 1 the front sectional view of
[0024] Figure 4 is Figure 1 the front sectional view of the feeding cylinder assembly in
[0025] Figure 5 is Figure 4 the top view of
[0026] Figure 6 is Figure 1 the front view of the plasticizing assembly in
[0027] Figure 7 is Figure 6 the top sectional view of
[0028] Figure 8Is Figure 1 The front view of the injection component in
[0029] Figure 9 Is Figure 8 The top cross-sectional view of
[0030] Figure 10 Is Figure 1 The front view of the cold runner component in
[0031] Figure 11 Is Figure 10 The enlarged view A in
[0032] Figure 12 Is Figure 10 The top cross-sectional view of
[0033] Figure 13 Is Figure 1 The front half cross-sectional view of the mold clamping component in
[0034] Figure 14 Is Figure 13 The left half cross-sectional view of
[0035] Figure 15 Is Figure 1 The front view of the connection between the feeding barrel component, plasticizing component, injection component and cold runner component in
[0036] Figure 16 Is Figure 15 The top view of
[0037] Figure 17 Is Figure 15 The left view of
[0038] Figure 18 Is Figure 17 The D-D cross-sectional view of
[0039] Figure 19 Is Figure 16 The enlarged view C of
[0040] Figure 20 Is Figure 15 The enlarged view B of
[0041] Figure 21 Is Figure 20 The E-E cross-sectional view of
[0042] In the figure: frame 10, feeding barrel assembly 20, feeding port 21, barrel 22, feeding joint 23, feeding oil cylinder 24, feeding oil cylinder piston rod 25, pushing piston 26, feeding elbow 27, barrel cover 28, bracket 29, plasticizing assembly 30, glue inlet 31, plasticizing screw 32, plasticizing barrel 33, glue outlet 34, shuttle shaft 35, check valve sleeve 36, hydraulic motor 37, bearing body 38, transition flange 39, transmission shaft 3a, first connecting flange 3b, rolling bearing 3c, thrust bearing 3d, injection assembly 40, plasticized glue inlet 41, injection barrel 42, injection plunger 43, injection nozzle 44, injection oil cylinder 45, central connecting body 46, injection connecting body 47, injection nozzle body 48, second connecting flange 49, injection metering electronic scale 4a, cold runner assembly 50, gate 51, cold runner nozzle 52, cold runner plate 53, cold runner hot plate 54, heat insulation plate 55, mold clamping assembly 60, upper template 61, moving template 62, guide pillar 63, main oil cylinder 64, mold clamping plunger 65, pressing plate 66, mold clamping electronic scale 67, hydraulic system 70, main oil tank 71, oil circuit assembly 72, oil pump 73. Detailed implementation manners
[0043] The present utility model will be further described in detail below in conjunction with the embodiments in the drawings.
[0044] As Figures 1 to 21 shown, it is a specific embodiment of a rubber injection machine with top side injection of the present utility model.
[0045] As Figure 1 and Figure 2 shown, the rubber injection machine with top side injection of this embodiment includes a frame 10, on which a feeding barrel assembly 20, a plasticizing assembly 30, an injection assembly 40, a cold runner assembly 50, a mold clamping assembly 60 and a hydraulic system 70 are provided. The feeding barrel assembly 20 is horizontally arranged in the middle of the frame 10, and the injection assembly 40 is horizontally arranged on the top of the frame 10; the plasticizing assembly 30 is vertically arranged, with one end connected to the feeding barrel assembly 20 and the other end connected to the injection assembly 40. The feeding barrel assembly 20 and the injection assembly 40 are located on the same side of the plasticizing assembly 30; the cold runner assembly 50 is arranged on the top of the frame 10 and connected to the injection assembly 40, the mold clamping assembly 60 is located below the cold runner assembly 50, and the hydraulic system 70 is located below the feeding barrel assembly 20 at the bottom of the frame 10.
[0046] As Figure 3 shown, when the rubber injection machine with top side injection works, after the mold clamping assembly 60 clamps the mold, the worker feeds the rubber material into the feeding barrel assembly 20. The feeding barrel assembly 20 extrudes the rubber material into the plasticizing assembly 30. The plasticizing assembly 30 acts to plasticize the rubber material and squeeze it into the injection assembly 40. After reaching the set measurement, the injection assembly 40 injects the rubber material into the cold runner assembly 50 and injects it into the mold of the mold clamping assembly 60 through the cold runner.
[0047] The injection assembly of this top-side injection rubber injection machine is horizontally arranged at the top of the frame, with lateral feeding from above. The plasticizing assembly is vertically arranged, allowing the feeding barrel to be placed horizontally, significantly reducing the feeding height compared to traditional structures and making the operating height appropriate. Moreover, the feeding barrel assembly and the injection assembly are on the same side, making the structure more compact and saving the floor space of the machine.
[0048] As Figure 4 and Figure 5 shown, the feeding barrel assembly 20 includes a feeding port 21, a barrel 22, and a feeding joint 23. The feeding joint 23 is connected to the plasticizing assembly 30. Workers feed materials into the barrel 22 from the feeding port 21 and then into the plasticizing assembly 30 through the feeding joint 23.
[0049] As Figure 4 and Figure 5 shown, the feeding barrel assembly 20 further includes a feeding oil cylinder 24, a feeding oil cylinder piston rod 25, and a pushing piston 26 connected in sequence. The pushing piston 26 is located inside the barrel 22. The feeding port 21 is provided with a barrel cover 28. The barrel 22 is connected to the feeding joint 23 through a feeding elbow 27, and a bracket 29 is provided at the end of the feeding joint 23. The feeding oil cylinder 24 drives the pushing piston 26 to move back and forth inside the barrel 22 through the feeding oil cylinder piston rod 25. The pushing piston 26 extrudes the rubber material inside the barrel 22 and sends it into the plasticizing assembly 30. Open the barrel cover 28 of the feeding port 21, put the rubber material into the barrel 22, the feeding oil cylinder 24 drives the feeding oil cylinder piston rod 25 to move forward, pushing the pushing piston 26 connected to the feeding oil cylinder piston rod 25 to move forward, and extruding the rubber material through the feeding elbow 27 into the plasticizing assembly 30.
[0050] As Figure 6 and Figure 7 shown, the plasticizing assembly 30 includes a rubber inlet 31, a plasticizing screw 32, a plasticizing barrel 33, and a rubber outlet 34. The rubber inlet 31 is connected to the feeding barrel assembly 20, the rubber outlet 34 is connected to the injection assembly 40, and the plasticizing screw 32 rotates inside the plasticizing barrel 33 to plasticize the rubber material entering from the rubber inlet 31 and discharge it from the rubber outlet 34 into the injection assembly 40. The rubber material in the feeding barrel assembly 20 enters the plasticizing barrel 33 from the rubber inlet 31, is plasticized by the rotation of the plasticizing screw 32, and then enters the injection assembly 40 from the rubber outlet 34.
[0051] As Figure 6 and Figure 7As shown, at the end of the glue outlet 34, there are a shuttle shaft 35 and a check valve sleeve 36 that cooperate with each other. At the other end, there is a hydraulic motor 37 connected to the plasticizing screw 32. The hydraulic motor 37 provides the power for the rotation of the plasticizing screw 32, and the mutually cooperating shuttle shaft 35 and check valve sleeve 36 ensure the realization of the function of the glue outlet 34. Between the hydraulic motor 37 and the end of the plasticizing screw 32, there are a bearing body 38, a thrust bearing 3d, a rolling bearing 3c, a transition flange 39, and a transmission shaft 3a in sequence. At the head of the plasticizing barrel 33, there is a first connecting flange 3b.
[0052] The hydraulic motor 37 drives the plasticizing screw 32 to rotate through the transmission shaft 3a. The rubber material enters the plasticizing barrel 33 from the glue inlet 31, and through the transmission of the rotating plasticizing screw 32, the rubber material is extruded unidirectionally and non-returnably from the glue outlet 34 through the check valve sleeve 36 and the shuttle shaft 35 and enters the injection assembly 40. When the injection assembly 40 injects, the check valve composed of the shuttle shaft 35 and the check valve sleeve 36 is closed, and plasticization stops the incoming glue. The plasticizing assembly 30 is responsible for plasticizing, stirring, and extruding the rubber material into the injection barrel 42, and stirring and plasticizing make the rubber material uniform, dense, and free of air bubbles.
[0053] As Figure 8 and Figure 9 shown, the injection assembly 40 includes a plasticized glue inlet 41, an injection barrel 42, an injection plunger 43, and an injection nozzle 44. The injection plunger 43 is located inside the injection barrel 42. At the head of the injection barrel 42, there are an injection nozzle 44 and a plasticized glue inlet 41, and the plasticized glue inlet 41 is connected to the plasticizing assembly 30. The rubber material in the plasticizing assembly 30 enters the injection barrel 42 from the plasticized glue inlet 41 and is ejected from the injection nozzle 44 through the extrusion of the injection plunger 43 and enters the cold runner assembly 50.
[0054] As Figure 8 and Figure 9 shown, one end of the injection barrel 42 is provided with an injection cylinder 45 connected to the injection plunger 43, and the other end is provided with a central connection body 46. The central connection body 46 is provided with a plasticized glue inlet 41, and the central connection body 46 is connected to the injection nozzle 44 through an injection nozzle body 48. The injection cylinder 45 and the injection barrel 42 are connected through an injection connection body 47, and a second connecting flange 49 is provided outside the injection nozzle body 48. The injection cylinder 45 provides the power for the injection plunger 43 to realize the reciprocating movement of the injection plunger 43 inside the injection barrel 42 and push the injection plunger 43 to eject the rubber material from the injection nozzle 44.
[0055] The rubber compound enters from the plasticized rubber inlet 41 of the central connector 46, pushing the injection plunger 43 backward to fill the injection barrel 42. It is measured by the injection metering electronic scale 4a. When the set measurement is reached, oil enters the rear chamber of the injection cylinder 45, pushing the injection plunger 43 forward. The rubber compound exits from the injection nozzle 44 through the central connector 46 and the injection nozzle body 48 and enters the cold runner assembly 50. The injection assembly 40 is responsible for increasing the pressure of the rubber compound extruded into the injection barrel 42 and injecting the rubber compound into the cold runner assembly 50.
[0056] As Figure 10 , Figure 11 and Figure 12 shown, the cold runner assembly 50 includes a cold runner plate 53 provided with a gate 51 and a cold runner nozzle 52. The lower part of the cold runner plate 53 is successively provided with a heat insulation plate 55 and a cold runner hot plate 54. The gate 51 is connected to the injection assembly 40, and the cold runner nozzle 52 is connected to the mold clamping assembly 60. The rubber compound in the injection assembly 40 enters the cold runner plate 53 from the gate 51 and sprays out from the cold runner nozzle 52 into the mold clamping assembly 60.
[0057] The rubber compound enters the cold runner plate 53 through the gate 51, and the flow path is evenly divided and exits from the cold runner nozzle 52 to enter the mold for injection molding of the product. The cold runner assembly 50 is responsible for connecting the mold and the injection assembly 40, guiding the high-pressure rubber compound to different points of the mold. At the same time, the cold runner also plays a role in saving the sprue rubber compound generated during production.
[0058] As Figure 13 and Figure 14 shown, the mold clamping assembly 60 includes an upper template 61, a moving template 62 and four guide columns 63. The upper template 61 is fixed on the upper part of the guide columns 63, and the moving template 62 is slidably arranged on the guide columns 63 to realize the opening and closing of the mold with the upper template 61; the cold runner assembly 50 is fixed at the lower end of the upper template 61. The upper template 61 is fixed, and is tightly fixed by the upper pressing plate 66. The moving template 62 moves up and down to realize the opening and closing of the mold. A main cylinder 64 and a mold clamping plunger 65 are provided at the lower part of the moving template 62. The main cylinder 64 drives the moving template 62 to move up and down through the mold clamping plunger 65 and generates the mold clamping force required to lock the mold. The mold clamping assembly 60 is also provided with a mold clamping electronic scale 67 to measure the up and down moving stroke of the moving template 62.
[0059] As Figure 1 shown, the hydraulic system 70 consists of a main oil tank 71, an oil circuit assembly 72, an oil pump 73 and a motor to form a power system, providing power for the cylinders or hydraulic devices of each component.
[0060] As Figure 15 , Figure 20 and Figure 21As shown in the figure, the connection diagram of the plasticizing component 30 and the injection component 40. The first connection flange 3b of the plasticizing component 30 and the check valve sleeve 36 are connected and matched with the central connection body 46 of the injection component 40 and fixed with screws. The check valve sleeve 36 and the central connection body 46 are hermetically sealed in a plane. The connection flange is threadedly connected to the plasticizing barrel 33 and is connected and fixed to the central connection body 46 with screws.
[0061] As Figure 16 and Figure 19 shown in the figure, the connection diagram of the injection component 40 and the cold runner component 50. The injection nozzle 44 of the injection component 40 is butt-jointed with the gate 51 of the cold runner component 50 in a spherical surface. The injection nozzle 44 is threadedly connected to the injection nozzle body 48. The second connection flange 49 is threadedly connected to the injection nozzle body 48. The second connection flange 49 is connected to the cold runner plate 53 with screws.
[0062] As Figure 17 and Figure 18 shown in the figure, the connection diagram of the feeding barrel component 20 and the plasticizing component 30. The bracket 29 and the feeding joint 23 of the feeding barrel component 20 surround the plasticizing barrel 33 of the plasticizing component 30, so that the rubber outlet of the feeding joint 23 is butt-jointed with the glue inlet 31 of the plasticizing component 30, and the bracket 29 and the feeding joint 23 are connected and locked with screws.
[0063] This rubber injection machine with top-side injection has a suitable feeding height, which reduces the labor intensity of workers; has less injection pressure loss and saves energy consumption; has a compact overall layout and saves factory space; the overall height is shorter than that of the traditional injection structure, and it is more adaptable to the factory height.
[0064] In summary, as described in the specification and the illustrated content of the present utility model, an actual sample is made and tested through multiple uses. From the test results, it is proved that the present utility model can achieve the expected purpose, and its practicability is beyond doubt. The above-mentioned embodiments are only used to conveniently illustrate the content of the present utility model and are not a formal limitation thereof; any person with common general knowledge in the technical field can, without departing from the technical features and similar features proposed by the present utility model, make local changes or modified equivalent embodiments by using the technical content disclosed by the present utility model, and all belong to the protection scope of the present utility model.
Claims
1. A top side injection rubber injection machine, comprising a frame (10), characterized in that: The frame (10) is provided with a feeding barrel assembly (20), a plasticizing assembly (30) and an injection assembly (40); the feeding barrel assembly (20) is arranged horizontally in the middle of the frame (10), and the injection assembly (40) is arranged horizontally on the top of the frame (10); the plasticizing assembly (30) is arranged vertically, with one end connected to the feeding barrel assembly (20) and the other end connected to the injection assembly (40); the feeding barrel assembly (20) and the injection assembly (40) are located on the same side of the plasticizing assembly (30).
2. The top side injection rubber injection machine according to claim 1 is characterized in that: The frame (10) is also provided with a cold runner assembly (50), a clamping assembly (60) and a hydraulic system (70); the cold runner assembly (50) is arranged on the top of the frame (10) and connected to the injection assembly (40); the clamping assembly (60) is located at the bottom of the cold runner assembly (50); and the hydraulic system (70) is located at the bottom of the frame (10) and at the bottom of the feed barrel assembly (20).
3. The top side injection rubber injection machine according to claim 1, characterized in that: The feeding barrel assembly (20) comprises a feeding port (21), a barrel (22) and a feeding joint (23); the feeding joint (23) is connected to the plasticizing assembly (30).
4. The top side injection rubber injection machine according to claim 1, characterized in that: The plasticizing component (30) comprises a glue inlet (31), a plasticizing screw (32), a plasticizing barrel (33) and a glue outlet (34); the glue inlet (31) is connected to the feeding barrel component (20); the glue outlet (34) is connected to the injection component (40); the plasticizing screw (32) is rotatably disposed in the plasticizing barrel (33) to plasticize the glue entering from the glue inlet (31) and discharge the glue from the glue outlet (34) into the injection component (40).
5. The top side injection rubber injection machine according to claim 1, characterized in that: The injection assembly (40) comprises a plasticizing glue inlet (41), an injection barrel (42), an injection plunger (43) and an injection nozzle (44); the injection plunger (43) is located in the injection barrel (42); the injection nozzle (44) and the plasticizing glue inlet (41) are provided at the head of the injection barrel (42); the plasticizing glue inlet (41) is connected to the plasticizing assembly (30).
6. The top side injection rubber injection machine according to claim 2, characterized in that: The cold runner assembly (50) comprises a cold runner plate (53) provided with a gate (51) and a cold runner nozzle (52), the gate (51) being connected to the injection assembly (40), and the cold runner nozzle (52) being connected to the mold clamping assembly (60).
7. The top side injection rubber injection machine according to claim 2, characterized in that: The mold closing assembly (60) comprises an upper mold plate (61), a movable mold plate (62) and a plurality of guide pillars (63); the upper mold plate (61) is fixed to the upper portion of the guide pillars (63); the movable mold plate (62) is slidably arranged on the guide pillars (63) to realize mold opening and mold closing with the upper mold plate (61); and the cold runner assembly (50) is fixed to the lower end of the upper mold plate (61).
8. The top side injection rubber injection machine according to claim 3, characterized in that: The feeding barrel assembly (20) further comprises a feeding oil cylinder (24), a feeding oil cylinder piston rod (25) and a pushing piston (26) which are connected in sequence, and the pushing piston (26) is located in the barrel (22).
9. The top side injection rubber injection machine according to claim 4, characterized in that: The glue outlet (34) is provided with a shuttle shaft (35) and a one-way valve sleeve (36) that cooperate with each other at one end, and a hydraulic motor (37) is provided at the other end to connect with the plasticizing screw (32).
10. The top side injection rubber injection machine according to claim 5, characterized in that: An injection cylinder (45) connected to the injection plunger (43) is provided at one end of the injection barrel (42), and a central connecting body (46) is provided at the other end. The central connecting body (46) is provided with the plasticizing glue inlet (41), and the central connecting body (46) is connected to the injection nozzle (44).