Lower pressurizing mold closing device of rubber injection machine and rubber injection machine
By adopting a lower pressure clamping device in the rubber injection molding machine, the problems of sealing failure and excessive height were solved, resulting in reduced product quality and transportation costs, adaptability to low-ceiling factory environments, and improved production flexibility and yield.
Patent Information
- Application Number
- CN202520352545.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-03
AI Technical Summary
Existing rubber injection molding machines with moving mold clamping devices suffer from problems such as sealing failure leading to hydraulic oil leakage, excessive machine height, inconvenient transportation, and inconvenient mold adjustment, which limit their application, especially in low-ceiling factory environments.
The machine adopts a lower pressure clamping device, with the pressure cylinder located below the fixed template. It achieves sealing through a brake mechanism, which reduces the overall height of the machine. There is no need to disassemble the columns during transportation. The mold can be adjusted flexibly to adapt to molds of different thicknesses.
It ensures product quality, reduces transportation and installation costs, adapts to low-ceiling factory environments, and improves production flexibility and yield.
Smart Images
Figure CN223904476U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of rubber injection machine, specifically is a kind of rubber injection machine lower pressure mould closing device and the rubber injection machine of application of this device. BACKGROUND
[0002] Rubber injection machine is applied to the production and processing of long insulator in electric power industry, due to product is too long, product needs to act simultaneously with the template of lower movement in traditional lower movement mould closing device production, needs to design complex support to support product, can produce, causes equipment cost to be too high.There is a need for a mould closing device with fixed lower mould and movable upper mould.
[0003] The existing upper movement mould closing device, pressure cylinder is located on the upper die plate, and the pressure plunger is downward, once the pressure seal fails to seep oil or replace the pressure seal, there is a risk of hydraulic oil seeping into the mould closing working area;In addition, the existing upper movement mould closing device is the way of placing shims between the upper movement die plate and the pressure cylinder, in order to adapt to the opening stroke required by production, resulting in too high machine height, the column needs to be disassembled during transportation, which increases the installation and transportation cost;Too high machine height cannot adapt to low factory environment.
[0004] Therefore, the above technical problems need to be solved. SUMMARY
[0005] The utility model provides a kind of rubber injection machine lower pressure mould closing device and rubber injection machine according to above technical problems, adopt the pressure function of realizing by the way of lower pressure of brake mechanism matching, ensure that sealed oil cannot seep into the mould closing area when seal fails and is replaced, machine height is reduced, need not disassemble column to transport, adapt to low factory.
[0006] To achieve the above purpose, the technical scheme of the utility model is as follows:
[0007] A kind of rubber injection machine lower pressure mould closing device, including base, fixed die plate, movable die plate, two groups of mould opening and closing drive oil cylinder and pressure cylinder, the fixed die plate is fixed on the base, the lower part of the fixed die plate is equipped with the pressure cylinder, the plunger of the pressure cylinder is fixedly connected with the fixed die plate;
[0008] The movable die plate is located on the fixed die plate, and the fixed die plate is fixed to the mould opening and closing drive oil cylinder at one angle, respectively, and the piston rod of the mould opening and closing drive oil cylinder is connected to the movable die plate;
[0009] The mould opening and closing drive oil cylinder drives the movable die plate and the fixed die plate to close, and the pressure cylinder drives the movable die plate to pressurize and lock.
[0010] The pressurizing cylinder of the rubber injection machine lower pressurizing mold closing device is located below the fixed mold plate, the pressurizing cylinder is isolated from the mold closing working area, and when the seal fails or the seal is replaced, hydraulic oil will not seep into the mold closing area, which will not contaminate the mold and the rubber products, thereby ensuring the quality of the products and improving the yield of the products.
[0011] The upper part of the movable mold plate is not provided with a pressurizing cylinder, which greatly reduces the height of the whole machine, and no part exceeding the height needs to be disassembled during transportation, which facilitates transportation and installation, and accordingly saves the transportation and installation costs, and can also adapt to low factory building environment.
[0012] The mold closing device movable mold plate is located above, and the fixed mold plate is located below. The fixed mold plate is fixed on the base, so the fixed mold plate is fixed and cannot move; the plunger of the pressurizing cylinder is connected with the fixed mold plate, that is, the plunger is also fixed and cannot move; then when the pressurizing cylinder is pressurized, the cylinder body moves to drive the movable mold plate to apply force downward to realize pressurizing and mold closing. After the rubber product injection is completed and the product is formed, the mold is opened. During the mold opening process, the product will not move because the fixed mold plate is fixed, and it is not necessary to design a support to support the product, which is especially suitable for long rubber products.
[0013] Further optimization scheme, it also includes two groups of reset drive oil cylinders, the reset drive oil cylinders are fixedly connected to the other diagonal of the fixed mold plate, and the piston rod of the reset drive oil cylinder is connected with the cylinder body of the pressurizing cylinder. The two groups of reset drive oil cylinders assist the pressurizing cylinder to reset during the mold opening process, so that the mold can be opened quickly and smoothly.
[0014] Further optimization scheme, it also includes a plurality of columns and a brake mechanism, the upper end of the column is movably connected with the movable mold plate, the movable mold plate moves up and down with the column as a guide, and the lower end of the column is fixedly connected with the cylinder body of the pressurizing cylinder.
[0015] The brake mechanism is arranged on the upper part of the movable mold plate, when the movable mold plate and the fixed mold plate are closed to the position, the brake mechanism tightly holds the column to fix the movable mold plate and the column as a whole.
[0016] Further optimization scheme, the upper end of the column is provided with a sawtooth thread; the brake mechanism includes a plurality of left half nuts, right half nuts, connecting rods and brake drive oil cylinders, the left half nuts and the right half nuts embrace the column and are connected with the sawtooth thread of the column; the left half nuts on the two columns arranged in parallel are connected as a whole through a part of the connecting rods, and the right half nuts are connected as a whole through another part of the connecting rods; the brake drive oil cylinders are connected between the left half nuts and the right half nuts, so that the left half nuts and the right half nuts can simultaneously tightly hold or release the column.
[0017] Further optimization scheme, the embrace brake mechanism also includes several embrace brake bases, guide blocks and limit blocks, the embrace brake base is fixedly connected on the movable die plate, the guide block is arranged on the embrace brake base, and the left half nut and the right half nut are arranged on the embrace brake base and move back and forth along the guide block, the limit block is arranged on the embrace brake base, and the limit block limits the maximum position of the left half nut and the right half nut in the loosening state.
[0018] Further optimization scheme, the fixed die plate is provided with a plurality of reset limit screws, and the reset limit screws limit the position of the cylinder body of the booster cylinder when resetting. By adopting the reset limit screw and the reset driving oil cylinder, adjusting the die thickness only needs to adjust the reset limit screw, so that the left half nut and the right half nut are matched with the threads on the column when the mold is closed. The reset limit screw can achieve stepless die thickness adjustment, and the production flexibility is improved.
[0019] Further optimization scheme, the base fixes the fixed die plate through the support seat.
[0020] Further optimization scheme, the column is provided with a guide sleeve moving up and down, and the guide sleeve is fixedly connected with the movable die plate. The arrangement of the guide sleeve ensures the precision and stability of the movable die plate moving on the column, reduces the friction and wear between the column and the movable die plate, and prolongs the service life of the column and the movable die plate.
[0021] Further optimization scheme, the lower end of the column is provided with a locking nut connected with the cylinder body of the booster cylinder, the lower end of the locking nut is provided with a pressing plate pressing the end face of the column, and the pressing plate is fixedly connected with the cylinder body of the booster cylinder. The pressing plate is always pressed on the end face of the column, so that the column, the locking nut and the pressing plate are connected as a whole, which is beneficial to the integral movement.
[0022] A rubber injection machine comprises the lower booster die closing device of any of the above rubber injection machines.
[0023] Compared with the prior art, the utility model has the following technical advantages:
[0024] 1. The lower booster die closing device of the rubber injection machine and the rubber injection machine prevent the risk of hydraulic oil polluting the mold and rubber products by designing the booster cylinder to be placed below, thereby ensuring the quality of products and improving the yield of products.
[0025] 2. The lower booster die closing device of the rubber injection machine and the rubber injection machine have a lower overall height than the height of the traditional upper die closing device with the same die closing stroke, so that the column does not need to be disassembled during transportation, transportation and installation costs are saved, and the overall height is low, so that the device can be applied to low factory buildings and has a wider installation scene.
[0026] 3. The rubber injection machine lower pressure boosting mold closing device and the rubber injection machine operation height are comfortable for human engineering, and the device does not need to be sunk into the ground or to be placed on a platform, thereby saving the purchase cost.
[0027] 4. After the rubber product is injection molded, the product is static during the mold opening process, and a support for supporting the product does not need to be designed, and the rubber injection machine is especially suitable for long rubber products. BRIEF DESCRIPTION OF DRAWINGS
[0028] Figure 1 is a perspective view of a specific embodiment of the rubber injection machine lower pressure boosting mold closing device of the utility model;
[0029] Figure 2 is a front view of Figure 1 ;
[0030] Figure 3 is a top view of Figure 2 ;
[0031] Figure 4 is an enlarged view of A in Figure 1 ;
[0032] Figure 5 is a left view of Figure 1 ;
[0033] Figure 6 is a B-B sectional view of Figure 2 .
[0034] In the drawing: base 1, fixed mold plate 2, movable mold plate 3, mold opening and closing drive oil cylinder 4, pressure boosting cylinder 5, pressure boosting cylinder plunger 5a, pressure boosting cylinder body 5b, reset drive oil cylinder 6, stand column 7, brake holding mechanism 8, left half nut 8a, right half nut 8b, connecting rod 8c, brake holding drive oil cylinder 8d, brake holding base 8e, guide block 8f, limiting block 8g, reset limiting screw 9, support seat 10, guide sleeve 11, locking nut 12, pressing plate 13. DETAILED DESCRIPTION
[0035] The utility model will be further explained in detail below by combining the embodiments in the drawing.
[0036] As shown in Figures 1 to 6 , a specific embodiment of the rubber injection machine lower pressure boosting mold closing device of the utility model.
[0037] As shown in Figure 1 , the rubber injection machine lower pressure boosting mold closing device of the embodiment comprises a base 1, a fixed mold plate 2, a movable mold plate 3, two groups of mold opening and closing drive oil cylinders 4 and pressure boosting cylinders 5, the fixed mold plate 2 is fixed on the base 1, and the pressure boosting cylinders 5 are arranged at the lower part of the fixed mold plate 2; as shown in Figure 6As shown, the booster cylinder 5 includes a booster cylinder plunger 5a and a booster cylinder body 5b, the booster cylinder plunger 5a is fixedly connected to the bottom of the fixed die plate 2.
[0038] As shown, Figure 1 and Figure 2 As shown, the movable die plate 3 is above the fixed die plate 2, and the fixed die plate 2 is fixed on one corner of the opening and closing mold driving oil cylinder 4, and the piston rod of the opening and closing mold driving oil cylinder 4 is connected to the movable die plate 3.
[0039] As shown, Figure 1 As shown, the opening and closing mold driving oil cylinder 4 drives the movable die plate 3 to move downward to close the mold with the fixed die plate 2, and the booster cylinder 5 drives the movable die plate 3 to move downward to boost the mold.
[0040] The booster cylinder 5 of the booster mold closing device of the rubber injection machine is located below the fixed die plate 2, and the booster cylinder 5 is isolated from the mold closing area, so that when the seal fails or is replaced, hydraulic oil will not seep into the mold closing area, which will not contaminate the mold and rubber products, ensuring the quality of the products and improving the yield of the products.
[0041] The movable die plate 3 is not provided with the booster cylinder 5, which greatly reduces the height of the whole machine, and there is no need to disassemble the parts exceeding the height during transportation, which is convenient for transportation and installation, and accordingly saves the cost of transportation and installation, and can also adapt to the environment of low factory building.
[0042] The above-mentioned mold closing device is provided with the movable die plate 3 located above and the fixed die plate 2 located below. The fixed die plate 2 is fixed on the base 1, so the fixed die plate 2 is fixed and cannot move; the plunger of the booster cylinder 5 is connected to the fixed die plate 2, that is, the plunger is also fixed and cannot move; then when the booster cylinder 5 boosts, the cylinder body of the booster cylinder 5 moves to drive the movable die plate 3 to exert force downward to realize the boosting of the mold. After the injection of the rubber product is completed and the product is formed, the mold is opened, and during the opening process, the product will not move because the fixed die plate 2 is fixed, so there is no need to design a support to support the product, which is especially suitable for long rubber products.
[0043] As shown, Figure 1 and Figure 2 As shown, the booster mold closing device of the rubber injection machine of the embodiment further comprises two groups of reset driving oil cylinders 6, which are fixedly connected to the other corner of the fixed die plate 2, and the piston rod of the reset driving oil cylinder 6 is connected to the booster cylinder body 5b. The two groups of reset driving oil cylinders 6 assist the booster cylinder 5 to reset during the mold opening process, so that the mold can be opened quickly and smoothly.
[0044] As shown, Figure 1 , Figure 5 and Figure 6 As shown, the booster mold closing device of the rubber injection machine of the embodiment further comprises four vertical columns 7 and two groups of brake catch mechanisms 8, one group of brake catch mechanisms 8 is installed on two parallel vertical columns 7, the upper end of the vertical column 7 is movably connected to the movable die plate 3, the movable die plate 3 moves up and down with the vertical column 7 as a guide, and the lower end of the vertical column 7 is fixedly connected to the booster cylinder body 5b.
[0045] The clamping brake mechanism 8 is fixedly connected to the upper part of the movable die plate 3. When the movable die plate 3 and the fixed die plate 2 are clamped in place, the clamping brake mechanism 8 clamps the upright column 7 to fix the movable die plate 3 and the upright column 7 as a whole.
[0046] As shown in Figure 1 , Figure 3 and Figure 4 , the upper end of the upright column 7 is provided with a sawtooth thread. Each set of clamping brake mechanism 8 includes two left half nuts 8a, two right half nuts 8b, four connecting rods 8c and one clamping brake driving oil cylinder 8d. The left half nuts 8a and the right half nuts 8b embrace the upright column 7 and are connected with the sawtooth thread. The left half nuts 8a on the two upright columns 7 in parallel are connected as a whole through two connecting rods 8c, and the two right half nuts 8b are connected as a whole through the other two connecting rods 8c. The clamping brake driving oil cylinder 8d is connected between the left half nuts 8a and the right half nuts 8b on different upright columns 7. The cylinder body of the clamping brake oil cylinder is connected with the right half nut 8b of the left upright column 7, and the piston rod is connected with the left half nut 8a of the right upright column 7, so as to realize the simultaneous clamping or loosening of the left half nuts 8a and the right half nuts 8b on the upright column 7.
[0047] As shown in Figure 1 and Figure 3 , each set of clamping brake mechanism 8 further includes two clamping brake bases 8e1, four guide blocks 8f and a plurality of limiting blocks 8g. The clamping brake base 8e1 is fixedly connected to the movable die plate 3. Every two guide blocks 8f are arranged on the clamping brake base 8e1 in left and right directions. The left half nuts 8a and the right half nuts 8b are arranged on the clamping brake base 8e1 and move back and forth along the guide blocks 8f. The limiting blocks 8g are arranged on the clamping brake base 8e1, and the limiting blocks 8g limit the maximum position of the left half nuts 8a and the right half nuts 8b in the loosening state.
[0048] As shown in Figure 1 and Figure 2 , the fixed die plate 2 is provided with a plurality of reset limiting screws 9, which limit the position of the cylinder body of the booster cylinder 5 when it is reset upward. The reset limiting screw 9 is used together with the reset driving oil cylinder 6. The adjustment of the mold thickness only needs to adjust the reset limiting screw 9, and the threads of the left half nuts 8a and the right half nuts 8b on the upright column 7 are ensured to be matched when clamped in place. The setting of the reset limiting screw 9 can achieve stepless adjustment of the mold thickness, which improves the flexibility of production.
[0049] As shown in Figure 1 and Figure 5 , the lower booster clamping device of the rubber injection machine of the embodiment further includes a support seat 10. The base 1 fixes the fixed die plate 2 through the support seat 10.
[0050] As shown in Figure 5 and Figure 6As shown, the column 7 is provided with a guide sleeve 11 moving up and down, and the guide sleeve 11 is fixedly connected with the movable die plate 3. The guide sleeve 11 ensures the moving precision and stability of the movable die plate 3 on the column 7, reduces the friction and abrasion between the column 7 and the movable die plate 3, and prolongs the service life of the column 7 and the movable die plate 3.
[0051] As shown in the drawings, Figure 1 and Figure 5 As shown, the lower end of the column 7 is provided with a locking nut 12 connected with the cylinder body of the locking pressure cylinder 5, and the lower end of the locking nut 12 is provided with a pressing plate 13 pressing the end face of the column 7, and the pressing plate 13 is fixedly connected with the cylinder body of the pressure cylinder 5. The pressing plate 13 is always pressed on the end face of the column 7, so as to ensure that the column 7, the locking nut 12 and the pressing plate 13 are connected as a whole, which is beneficial to the integral movement.
[0052] The utility model discloses further disclose a rubber injection machine lower pressure boosting clamping device.
[0053] The rubber injection machine lower pressure boosting clamping device and the rubber injection machine adopt the brake mechanism to match the lower pressure boosting mode to realize the pressure boosting function, the pressure cylinder is located below the fixed die plate, the pressure cylinder is isolated from the clamping work area, and the sealing failure and the replacement of sealing oil can not seep into the clamping area, the whole machine height is reduced, and the column does not need to be disassembled to transport, and the low factory building is adapted.
[0054] In summary, the utility model as the content of the specification and the drawing, the actual sample is made and is tested for many times, and the test effect shows that the utility model can achieve the expected purpose, and the practicability is not in doubt. The above-mentioned embodiments are only used to facilitate the description of the content of the utility model, and are not limited in form; any person skilled in the art with common knowledge, in the category of not departing from the technical features and similar features of the utility model, equivalent embodiments made by using the disclosed technical content of the utility model for partial change or modification, all belong to the protection scope of the utility model.
Claims
1. A rubber injection machine under-boosted mold closing device characterized by: The application relates to a mould opening and closing device, which comprises a base (1), a fixed mould plate (2), a movable mould plate (3), two groups of opening and closing driving oil cylinders (4) and a pressure boosting cylinder (5), the fixed mould plate (2) is fixed on the base (1), the pressure boosting cylinder (5) is arranged at the lower part of the fixed mould plate (2), the plunger of the pressure boosting cylinder (5) is fixedly connected with the fixed mould plate (2), the movable mould plate (3) is arranged above the fixed mould plate (2), one pair of angles of the fixed mould plate (2) are fixedly connected with the opening and closing driving oil cylinders (4), and the piston rod of the opening and closing driving oil cylinder (4) is connected with the movable mould plate (3), the opening and closing driving oil cylinder (4) drives the movable mould plate (3) to be combined with the fixed mould plate (2), and the pressure boosting cylinder (5) drives the movable mould plate (3) to be boosted and locked. The application further comprises two groups of reset driving oil cylinders (6), the reset driving oil cylinders (6) are fixedly connected with the other pair of angles of the fixed mould plate (2), and the piston rod of the reset driving oil cylinder (6) is connected with the cylinder body of the pressure boosting cylinder (5). The application further comprises a plurality of vertical columns (7) and a brake catching mechanism (8), the upper end of the vertical column (7) is movably connected with the movable mould plate (3), the movable mould plate (3) moves up and down along the vertical column (7) as a guide, and the lower end of the vertical column (7) is fixedly connected with the cylinder body of the pressure boosting cylinder (5).
2. The rubber injection machine underplaten assembly of claim 1 wherein, The brake catching mechanism (8) is arranged at the upper part of the movable mould plate (3), when the movable mould plate (3) is combined with the fixed mould plate (2) to the position, the brake catching mechanism (8) tightly catches the vertical column (7) to fix the movable mould plate (3) and the vertical column (7) as a whole.
3. The rubber injection machine underplaten assembly of claim 1 wherein, The upper end of the vertical column (7) is provided with a sawtooth thread, the brake catching mechanism (8) comprises a plurality of left half nuts (8a), right half nuts (8b), connecting rods (8c) and brake catching driving oil cylinders (8d), the left half nut (8a) and the right half nut (8b) embrace the vertical column (7) and are connected with the sawtooth thread of the vertical column (7), the left half nuts (8a) on two vertical columns (7) are connected as a whole through a part of the connecting rods (8c), the right half nuts (8b) are connected as a whole through another part of the connecting rods (8c), the brake catching driving oil cylinder (8d) is connected between the left half nut (8a) and the right half nut (8b), and the left half nut (8a) and the right half nut (8b) can simultaneously tightly catch or release the vertical column (7). The brake catching mechanism (8) further comprises a plurality of brake catching bases (8e) (1), guide blocks (8f) and limiting blocks (8g), the brake catching base (8e) (1) is fixedly connected with the movable mould plate (3), the guide block (8f) is arranged on the brake catching base (8e) (1), the left half nut (8a) and the right half nut (8b) are arranged on the brake catching base (8e) (1) and move back and forth along the guide block (8f), and the limiting block (8g) is arranged on the brake catching base (8e) (1) and limits the maximum position of the left half nut (8a) and the right half nut (8b) in the releasing state.
4. The rubber injection machine underplaten assembly of claim 3 wherein, 5. The rubber injection machine underplaten assembly of claim 4 wherein, 6. The rubber injection machine underplaten assembly of claim 2 wherein, The fixed mold plate (2) is provided with a plurality of reset limiting screws (9), which limit the position of the cylinder body of the supercharged cylinder (5) when the cylinder body is reset and moves upward.
7. The rubber injection machine underplaten apparatus of claim 1 wherein, It also includes a support seat (10), and the base (1) fixes the fixed mold plate (2) through the support seat (10).
8. The rubber injection machine underplaten assembly of claim 3 wherein, The column (7) is provided with an up-and-down moving guide sleeve (11), and the guide sleeve (11) is fixedly connected with the movable mold plate (3).
9. The rubber injection machine underplaten apparatus of claim 3 wherein, The lower end of the column (7) is provided with a locking nut (12) connected with the cylinder body of the supercharged cylinder (5), the lower end of the locking nut (12) is provided with a pressing plate (13) pressing the end face of the column (7), and the pressing plate (13) is fixedly connected with the cylinder body of the supercharged cylinder (5).
10. A rubber injection machine characterized by: The rubber injection machine lower supercharged mold closing device comprises the rubber injection machine lower supercharged mold closing device according to any one of claims 1 to 9.