Feeding and injection unit of rubber injection molding machine facilitating feeding

Abstract

The utility model relates to the field of rubber injection molding machines, in particular to a feeding and injection unit of a rubber injection molding machine, which is convenient for feeding and comprises a charging barrel, a feeding barrel is inserted in the charging barrel, an axis head is sleeved outside the bottom end of the feeding barrel, a check valve I is inserted in the axis head, one end of the check valve I is arranged in the feeding barrel, and the other end of the check valve I is arranged in the injection molding machine. A plurality of feeding through holes are annularly formed in the outer wall of the first check valve at equal intervals, and a feeding base is inserted into the top of the feeding cylinder. A second check valve is placed in the charging barrel and located below the feeding barrel, and the top of the second check valve is connected with the bottom of the first check valve in an inserted mode. According to the feeding device, the multiple feeding through holes are formed in the outer portion of the first check valve, it is guaranteed that glue entering the feeding cylinder can flow out smoothly, the depth of the feeding through holes is large, the glue outlet amount can be increased, the feeding smoothness is guaranteed, and the glue blocking phenomenon is avoided.

Description

Technical Field

[0001] This utility model relates to the field of rubber injection molding machine technology, and in particular to a feeding and injection unit of a rubber injection molding machine that facilitates feeding. Background Technology

[0002] A rubber injection molding machine is a primary molding device that uses rubber molds to create rubber products of various shapes.

[0003] Existing injection molding machines have small feed holes, which can easily lead to material blockage after prolonged use, affecting the amount of material dispensed and the smoothness of the feed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a feeding and injection unit for a rubber injection molding machine that facilitates material feeding.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A feeding and injection unit for a rubber injection molding machine that facilitates feeding includes a barrel, a feeding cylinder inserted inside the barrel, a spindle head sleeved on the bottom of the feeding cylinder, a check valve inserted inside the spindle head, one end of the check valve being installed inside the feeding cylinder, a plurality of feeding through holes being circumferentially opened at equal intervals on the outer wall of the check valve, and a feeding seat being inserted at the top of the feeding cylinder.

[0007] A second check valve is placed inside the feed cylinder below the feed cylinder, and the top of the second check valve is inserted into the bottom of the first check valve.

[0008] In addition, a preferred structure is that the feed seat has a feed channel extending through it, and the feed cylinder has an auxiliary flow channel extending through it.

[0009] Furthermore, in a preferred configuration, a limiting block is installed at the bottom of the first check valve, and a limiting slot is provided at the top of the second check valve at the limiting block.

[0010] Furthermore, in a preferred configuration, the check valve includes a guide section, a connecting section, and a fixing section, which are connected in sequence. The diameter of the guide section is the same as the diameter of the auxiliary flow channel, and the diameter of the fixing section is smaller than the diameter of the guide section.

[0011] In addition, a preferred structure is that a limiting groove is provided on one side of the shaft head at the feed cylinder, and a transition groove and a flow groove are sequentially provided inside the shaft head on one side of the limiting groove.

[0012] Furthermore, in a preferred configuration, the cross-sectional area of ​​the transition groove is the same as that of the connecting portion, and the diameter of the flow groove is the same as that of the fixing portion.

[0013] The beneficial effects of this utility model are as follows:

[0014] In this invention, multiple feed holes are opened on the outside of the check valve to ensure that the adhesive entering the feed cylinder can flow out smoothly. Moreover, the depth of the feed holes is relatively large, which can increase the amount of adhesive output, ensuring the smoothness of feeding and avoiding adhesive blockage. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the feeding and injection unit of a rubber injection molding machine that facilitates feeding, as proposed in this utility model.

[0016] Figure 2 This is a schematic cross-sectional view of the feeding and injection unit of a rubber injection molding machine that facilitates feeding, as proposed in this utility model.

[0017] Figure 3 This is a schematic diagram showing the disassembled structure of the feeding and injection unit of a rubber injection molding machine that facilitates feeding, as proposed in this utility model.

[0018] In the diagram: 1. Material cylinder; 2. Feed cylinder; 3. Feed seat; 4. Shaft head; 5. Check valve one; 6. Check valve two. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figure 1-3 A feeding and injection unit for a rubber injection molding machine that facilitates feeding includes a barrel 1, a feeding barrel 2 inserted inside the barrel 1, a spindle head 4 sleeved on the bottom of the feeding barrel 2, a check valve 5 inserted inside the spindle head 4, one end of the check valve 5 being installed inside the feeding barrel 2, and multiple feeding through holes being circumferentially opened at equal intervals on the outer wall of the check valve 5, and a feeding seat 3 being inserted into the top of the feeding barrel 2.

[0021] Inside the feed cylinder 1, below the feed cylinder 2, there is a check valve 2 6, and the top of the check valve 2 6 is inserted into the bottom of the check valve 1 5.

[0022] Furthermore, a feeding channel is provided through the feeding seat 3, and an auxiliary flow channel is provided through the feeding cylinder 2.

[0023] Furthermore, a limit block is installed at the bottom of check valve 5, and a limit slot is opened at the top of check valve 6 at the limit block.

[0024] Furthermore, the check valve 5 includes a guide part, a connecting part, and a fixing part, which are connected in sequence. The diameter of the guide part is the same as the diameter of the auxiliary flow channel, and the diameter of the fixing part is smaller than the diameter of the guide part.

[0025] Furthermore, a limiting groove is provided on one side of the shaft head 4 at the feed cylinder 2, and a transition groove and a flow groove are sequentially provided inside the shaft head 4 on one side of the limiting groove.

[0026] Furthermore, the cross-sectional area of ​​the transition groove is the same as that of the connecting part, and the diameter of the flow groove is the same as that of the fixed part.

[0027] Furthermore, it is worth noting that an electric heating plate (not shown in the figure) is provided on the outside of the material cylinder 1. The electric heating plate is electrically heated by an electric heating tube, and the rubber material entering the material cylinder 2 is fluidized into a liquid state at high temperature by the electric heating plate. The specific structure, connection method and working principle of the electric heating plate are all existing technologies that have been disclosed on the market, and are not the main technical problems to be solved in this utility model. Therefore, this utility model will not elaborate on them.

[0028] In this embodiment, multiple feed holes are opened on the outside of the check valve 5 to ensure that the adhesive material entering the feed cylinder 2 can flow out smoothly. The feed holes are also relatively deep, which can increase the amount of adhesive output and ensure the smoothness of feeding, thus avoiding adhesive blockage.

[0029] In this invention, multiple feed holes are opened on the outside of the check valve 5 to ensure that the adhesive material entering the feed cylinder 2 can flow out smoothly. Moreover, the depth of the feed holes is relatively large, which can increase the amount of adhesive output, ensuring the smoothness of feeding and avoiding adhesive blockage.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A feeding and injection unit for a rubber injection molding machine with easy feeding, comprising a barrel (1), characterized in that, The feed cylinder (1) is inserted into the feed cylinder (2), and the bottom end of the feed cylinder (2) is fitted with a shaft head (4). A check valve (5) is inserted into the shaft head (4). One end of the check valve (5) is installed in the feed cylinder (2). The outer wall of the check valve (5) is provided with multiple feed through holes at equal intervals. The top of the feed cylinder (2) is fitted with a feed seat (3). Inside the feed cylinder (1), below the feed cylinder (2), there is a check valve 2 (6), and the top of the check valve 2 (6) is inserted into the bottom of the check valve 1 (5).

2. The feeding and injection unit of a rubber injection molding machine with easy feeding according to claim 1, characterized in that, The feed seat (3) has a feed channel through it, and the feed cylinder (2) has an auxiliary flow channel through it.

3. The feeding and injection unit of a rubber injection molding machine with easy feeding according to claim 1, characterized in that, The bottom of the check valve one (5) is equipped with a limit plug, and the top of the check valve two (6) is provided with a limit slot at the limit plug.

4. The feeding and injection unit of a rubber injection molding machine with easy feeding according to claim 1, characterized in that, The check valve (5) includes a guide part, a connecting part, and a fixing part, which are connected in sequence. The diameter of the guide part is the same as the diameter of the auxiliary flow channel, and the diameter of the fixing part is smaller than the diameter of the guide part.

5. The feeding and injection unit of a rubber injection molding machine with easy feeding according to claim 1, characterized in that, A limiting groove is provided on one side of the shaft head (4) at the feed cylinder (2), and a transition groove and a flow groove are sequentially provided on one side of the limiting groove inside the shaft head (4).

6. The feeding and injection unit of a rubber injection molding machine with easy feeding according to claim 5, characterized in that, The cross-sectional area of ​​the transition groove is the same as that of the connecting part, and the diameter of the flow groove is the same as that of the fixing part.

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