Runner structure of rubber injection molding machine

Abstract

The utility model discloses a runner structure of a rubber injection molding machine, which comprises a mold cover and a mold base, the mold cover is mounted on the front side of the mold base through a fixing bolt, an injection molding hole is arranged in the middle of the front side of the mold cover, two sides of the mold cover are connected with ejector rods in a sliding manner, the injection molding hole is conical, and a heating ring is arranged on the mold cover outside the injection molding hole. An injection molding mechanism is arranged on the injection molding hole; sliding grooves are formed in the right end of the mold base, a slag discharging opening is formed in the bottom of the mold base, the number of the sliding grooves is two, a through hole is formed in the mold base located between the sliding grooves, the slag discharging opening is communicated with the rear sliding groove, a runner plate is slidably connected into the sliding grooves, a rubber injection molding groove is formed in the runner plate, and a short connecting rod is arranged at the outer end of the runner plate. By means of the structure, the problems that operation is complex, working efficiency is low, and the forming effect is poor are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to rubber forming mould technical field, especially relate to a flow channel structure of rubber injection molding machine. BACKGROUND

[0002] The rubber part is usually formed by the moulding on the injection molding machine, but the flow channel structure of the existing mould is usually single layer flow channel plate, and the number of products formed at a time is less, and the existing mould is usually used for taking the injection molding part by opening and closing the mould, if the multilayer flow channel plate is arranged, the mould needs to be opened and closed for many times, the operation is complex, the working efficiency is low, and the forming effect is poor, therefore the flow channel structure of rubber injection molding machine is provided. SUMMARY

[0003] The utility model discloses a flow channel structure of rubber injection molding machine, and solves the problems of complex operation, low working efficiency and poor forming effect.

[0004] In order to achieve the above-mentioned purpose, a flow channel structure of rubber injection molding machine is provided, which comprises a mold cover and a mold base, the mold cover is installed on the front side of the mold base through fixing bolts, an injection hole is arranged in the middle of the front side of the mold cover, and a top rod is slidably connected to the both sides of the injection hole, the injection hole is conical, a heating ring is arranged on the mold cover outside the injection hole, and an injection mechanism is arranged on the injection hole.

[0005] A sliding groove is arranged at the right end of the mold base, and a slag discharge port is arranged at the bottom, the sliding groove has two, a through hole is arranged on the mold base between the sliding grooves, the slag discharge port is communicated with the rear sliding groove, a flow channel plate is slidably connected in the sliding groove, a rubber injection slot is arranged on the flow channel plate, and a short connecting rod is arranged at the outer end of the flow channel plate.

[0006] According to the flow channel structure of the rubber injection molding machine, the injection mechanism comprises an injection pipe, an electric heating sleeve is fixedly connected to the outer periphery of the injection pipe, a feeding pipe is fixedly connected to the right end of the injection pipe, and a feeding hopper is fixedly connected to the upper side of the feeding pipe.

[0007] According to the flow channel structure of the rubber injection molding machine, a feeding screw is slidably connected in the injection pipe, a check valve is arranged at one end of the feeding screw, and a stop block is arranged at the other end of the feeding screw.

[0008] According to the flow channel structure of the rubber injection molding machine, a flow channel is arranged between the feeding pipe and the injection pipe, and the stop block is arranged at the right side of the flow channel.

[0009] According to the flow channel structure of the rubber injection molding machine, the electric heating sleeve has three, and is uniformly distributed on the outer side of the injection pipe.

[0010] According to the runner structure of the rubber injection molding machine, the top rod and the short connecting rod are respectively fixedly connected with electric telescopic rods at the other ends.

[0011] According to the runner structure of the rubber injection molding machine, the runner structure is fixedly connected with a fixed rod at the rear side of the mold base.

[0012] According to the runner structure of the rubber injection molding machine, the runner structure is fixedly connected with a fixed rod at the rear side of the mold base.

[0013] The utility model has the advantages of the following beneficial effects:

[0014] 1. Compared with the prior art, the runner plate is arranged in the mold set, different-shaped rubber injection grooves are arranged on the runner plate, through holes are arranged in the mold set, different rubber parts can be simultaneously injected during injection molding, and the working efficiency is improved.

[0015] 2. Compared with the prior art, the top rod and the runner plate are arranged on the mold set, and the top rod and the runner plate are controlled by the electric telescopic rod, the runner plate can be taken out by the electric telescopic rod after injection molding, the rubber injection part can be pushed out by the operator, the operation is convenient, the rubber remaining between the through holes in the mold base can be pushed out by the top rod, the rubber is discharged from the slag discharge port, and the next injection molding is not affected. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model is further described below in combination with the drawings and examples.

[0017] Figure 1 It is a structure diagram of the runner structure of the rubber injection molding machine of the utility model;

[0018] Figure 2 It is a runner plate structure diagram of the runner structure of the rubber injection molding machine of the utility model;

[0019] Figure 3 It is a section view of the mold cover of the runner structure of the rubber injection molding machine of the utility model;

[0020] Figure 4 It is Figure 1 It is a structure enlarged view of A in the middle;

[0021] Figure 5 It is a structure diagram of the injection molding mechanism of the runner structure of the rubber injection molding machine of the utility model;

[0022] Figure 6 It is a structure diagram of the feeding mechanism of the runner structure of the rubber injection molding machine of the utility model;

[0023] Figure 7The utility model discloses a rubber injection molding machine's runner structure's injection mechanism section view.

[0024] Legend:

[0025] 1, die cover, 11, injection hole, 12, ejector rod, 13, heating ring, 2, die holder, 21, fixed rod, 3, chute, 4, runner plate, 41, rubber injection slot, 42, short connecting rod, 5, slagging port, 6, injection tube, 7, electric heating sleeve, 8, blanking pipe, 81, blanking hopper, 82, runner, 9, feeding screw, 91, check valve, 92, stop block, 10, drive motor. DETAILED DESCRIPTION

[0026] This part will describe the specific embodiments of the utility model in detail, and the preferred embodiments of the utility model are shown in the drawings, and the drawings are used to supplement the description of the text part in the form of graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0027] Reference Figures 1-7 , the utility model discloses a rubber injection molding machine's runner structure, it includes die cover 1 and die holder 2, die holder 2 rear side fixedly connected with fixed rod 21, die cover 1 is installed in die holder 2 front side through fixed bolt, and die cover 1 front side middle position is equipped with injection hole 11, and both sides are slidably connected with ejector rod 12, injection hole 11 is conical, and it is convenient for injection material in injection hole 11 to discharge, and heating ring 13 is equipped on the die cover 1 of injection hole 11 outside, after injection, under the action of heating ring 13, injection hole 11 is heated, avoids injection material and injection hole 11 to be adhered, to avoid the influence to next injection, and injection hole 11 is equipped with injection mechanism, when rubber part injection, whether the pressure relief hole is set according to the shape factor such as injection part, if the structure of rubber injection slot 41 on runner plate 4 is relatively simple, and the shape is relatively regular, and there is no complex recess, dead angle and other parts that are easy to be trapped, then a small amount of gas generated in the injection process can be discharged through the natural exhaust mode (such as mold parting surface, needle gap etc.), at this time, the special pressure relief hole can not be set, and vice versa needs to be set.

[0028] Injection mechanism includes injection tube 6, and electric heating sleeve 7 is fixedly connected on the outer periphery of injection tube 6, and electric heating sleeve 7 has three, and is evenly distributed on the outside of injection tube 6, and blanking pipe 8 is fixedly connected on the right end of injection tube 6, and blanking hopper 81 is fixedly connected on the upper side of blanking pipe 8, and feeding screw 9 is slidably connected in injection tube 6, and check valve 91 is arranged on one end of feeding screw 9, and stop block 92 is arranged on the other end, and runner 82 is arranged between blanking pipe 8 and injection tube 6, and stop block 92 is located on the right side of runner 82, and drive motor 10 is fixedly connected on the right end of feeding screw 9, and electric push rod is fixedly connected on the other end of drive motor 10.

[0029] The right end of the mold base 2 is provided with a sliding groove 3, and the bottom is provided with a slag discharge port 5. The sliding groove 3 has two, and the mold base 2 between the sliding grooves 3 is provided with a through hole. The through hole has two and corresponds to the outside top rod 12. The slag discharge port 5 communicates with the rear sliding groove 3. The sliding groove 3 is slidably connected with the runner plate 4. In the injection molding process, the gap between the sliding groove 3 and the runner plate 4 produces rubber part burr which is within the controllable range of production error. The runner plate 4 is provided with a rubber injection slot 41, and the outer end is provided with a short connecting rod 42. The top rod 12 and the other end of the short connecting rod 42 are respectively fixedly connected with the electric telescopic rod. After the injection is completed, the electric telescopic rod draws out the runner plate 4 from the mold base 2. The rubber injection slot 41 is completely exposed outside, and the whole runner plate 4 does not need to be drawn out.

[0030] In another embodiment, if it is necessary to set a pressure relief hole, a pressure relief hole can be set on the mold base 2 corresponding to the position of the sliding groove 3 on the upper side, and the pressure relief hole communicates with the sliding groove 3. At the same time, if different shapes of rubber parts are injected, the runner plate 4 can be directly replaced, which is convenient to operate.

[0031] In another embodiment, in this patent, up to three sliding grooves 3 and runner plates 4 can be provided. When setting, it is necessary to judge according to the temperature of the injection material. If the temperature of the injection material entering the third runner plate 4 is too low, it will affect the molding of the rubber part. The specific operation needs to be determined according to the material and temperature of the rubber part.

[0032] Working principle: when installing, the mold base 2 is fixed on the injection molding equipment through the fixing rod 21, and the top rod 12 and the short connecting rod 42 are respectively fixedly connected with the output end of the electric telescopic rod.

[0033] When in use, the injection material is added in the lower hopper 81, and the electric heating sleeve 7, the driving motor 10 and the heating ring 13 are started. Under the action of the electric heating sleeve 7, the injection material is melted, and under the action of the driving motor 10, the injection material is conveyed into the injection pipe 6, and then the electric telescopic rod conveys the injection material into the mold base 2 through the injection hole 11. After the injection material enters the rubber injection slot 41 on the runner plate 4 and cools down, the electric telescopic rod on the runner plate 4 is started to draw out the runner plate 4 from the mold base 2. The operator can top out the rubber injection part, which is convenient to operate. Different rubber parts can be injected at the same time. When the runner plate 4 slides out, the electric telescopic rod on the top rod 12 is started to make the top rod 12 extend into the mold base 2 and top out the residual rubber between the through holes in the mold base 2, so that it is discharged from the slag discharge port 5, avoiding affecting the next injection. After the operation is completed, the electric telescopic rod drives the top rod 12 and the runner plate 4 to reset and repeat the operation.

[0034] The utility model embodiment makes the detailed explanation in combination with the drawing, but the utility model is not limited to the above -mentioned embodiment, still can make various changes in the knowledge range of ordinary skill in the art person who has possessed under the premise of not departing from the utility model tenet.

Claims

1. A flow channel structure for a rubber injection molding machine, characterized in that, The mold includes a mold cover (1) and a mold base (2). The mold cover (1) is installed on the front side of the mold base (2) by fixing bolts. The mold cover (1) has an injection hole (11) in the middle of the front side and push rods (12) are slidably connected on both sides. The injection hole (11) is conical. A heating ring (13) is provided on the mold cover (1) located outside the injection hole (11). An injection mechanism is provided on the injection hole (11). The mold base (2) has a sliding groove (3) on the right end and a slag discharge port (5) at the bottom. There are two sliding grooves (3). The mold base (2) located between the sliding grooves (3) has a through hole. The slag discharge port (5) is interconnected with the rear sliding groove (3). A flow channel plate (4) is slidably connected in the sliding groove (3). A rubber injection groove (41) is provided on the flow channel plate (4), and a short connecting rod (42) is provided at the outer end.

2. The flow channel structure of a rubber injection molding machine according to claim 1, characterized in that, The injection molding mechanism includes an injection tube (6), an electric heating sleeve (7) is fixedly connected to the outer periphery of the injection tube (6), a discharge tube (8) is fixedly connected to the right end of the injection tube (6), and a discharge hopper (81) is fixedly connected to the upper side of the discharge tube (8).

3. The flow channel structure of a rubber injection molding machine according to claim 2, characterized in that, The injection tube (6) is slidably connected to a feeding screw (9), one end of which is provided with a check valve (91) and the other end is provided with a stop block (92).

4. The flow channel structure of a rubber injection molding machine according to claim 3, characterized in that, A flow channel (82) is provided between the feed pipe (8) and the injection pipe (6), and the baffle (92) is located on the right side of the flow channel (82).

5. The flow channel structure of a rubber injection molding machine according to claim 4, characterized in that, There are three electric heating sleeves (7), which are evenly distributed on the outside of the injection tube (6).

6. The flow channel structure of a rubber injection molding machine according to claim 5, characterized in that, The other ends of the top rod (12) and the short rod (42) are respectively fixedly connected to electric telescopic rods.

7. The flow channel structure of a rubber injection molding machine according to claim 6, characterized in that, A fixing rod (21) is fixedly connected to the rear side of the mold base (2).

8. The flow channel structure of a rubber injection molding machine according to claim 7, characterized in that, The right end of the feeding screw (9) is fixedly connected to a drive motor (10), and the other end of the drive motor (10) is fixedly connected to an electric push rod.

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