Hydraulic mold locking combined structure for injection molding of middle cover of battery

Abstract

The utility model relates to the technical field of injection molding, in particular to a hydraulic mold locking combined structure for injection molding of a middle cover of a battery, which comprises two support columns fixedly mounted at the top of a base, a support plate fixedly mounted at the tops of the support columns, a lower mold fixedly mounted at the top of the base, an upper mold arranged above the lower mold, and a lower mold arranged above the upper mold, locking grooves are formed in the left side and the right side of the top of the upper mold correspondingly, and a mounting base is fixedly mounted at the top of the base. In the process of producing the middle cover of the battery, when an upper mold and a lower mold are closed, a second hydraulic push rod drives a push block to push a locking block, so that the locking block can stably slide along a fixing sleeve, the locking block and a locking groove are in tight fit and butt joint, and the upper mold is subjected to auxiliary positioning through the locking block; the upper mold and the lower mold are tightly extruded and attached, the influence of the injection molding thermal expansion effect is reduced, and therefore the production quality of products is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to a hydraulic die-locking combined structure for injecting a battery middle cover. Background Art

[0002] As an important device in the plastic processing industry, the die-locking mechanism of an injection molding machine is a key component to ensure the tight closing of the mold and the forming quality of products. Traditionally, the hydraulic die-locking technology has been widely used in injection molding machines due to its advantages of large force, high control precision, and good stability. The hydraulic die-locking mechanism makes the upper and lower molds of the mold fit tightly through the pressure of hydraulic oil, realizing the injection molding of plastic raw materials.

[0003] As an important part of the battery, the injection-molded battery middle cover has extremely high precision requirements. Any slight dimensional deviation may lead to a decline in battery performance or abnormal operation. Therefore, higher requirements are put forward for the die-locking technology of the injection molding machine to ensure that the middle cover can be accurately formed during the injection molding process.

[0004] In the production process of injecting the battery middle cover, during the injection molding process of the upper and lower molds of the injection molding machine, due to the characteristic of the material expanding when heated, it is difficult to maintain a completely and tightly fitting state. This thermal expansion effect not only affects the sealing performance of the mold but also directly reduces the forming precision and production quality of the product, having an adverse impact on the performance and appearance of the final product. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a hydraulic die-locking combined structure for injecting a battery middle cover, which has the characteristics of tight fitting and improved product quality.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A hydraulic die-locking combined structure for injecting a battery middle cover, including two support columns fixedly installed on the top of the base. The top of the support columns is fixedly installed with a support plate. The top of the base is fixedly installed with a lower mold. An upper mold is arranged above the lower mold. Lock grooves are respectively opened on the left and right sides of the top of the upper mold. The top of the base is fixedly installed with a mounting seat. The top of the mounting seat is fixedly installed with a fixed column. The top of the fixed column is fixedly installed with a fixed sleeve. A lock block is slidably sleeved inside the fixed sleeve, and the lock block corresponds to the lock groove in position.

[0007] To facilitate mold closing, as a preferred embodiment of the hydraulic die-locking combined structure for injecting a battery middle cover of the utility model, a first hydraulic push rod is fixedly installed on the top of the support plate. The output end of the first hydraulic push rod is fixedly installed with the top of the upper mold, and a material injection nozzle is fixedly installed on the top of the upper mold.

[0008] For the convenience of aligning the mold, as a preferred hydraulic clamping combined structure for injecting the middle cover of the battery in the present utility model, two cylinders are fixedly installed at the top of the upper mold, and the cylinders penetrate through the bottom of the support plate and are slidably sleeved with the support plate.

[0009] For assisting the mold to fit, as a preferred hydraulic clamping combined structure for injecting the middle cover of the battery in the present utility model, a second hydraulic push rod is fixedly installed at the top of the mounting seat, a pushing block is installed at the output end of the second hydraulic push rod, a notch is formed at the top of the locking block, and the pushing block is slidably sleeved with the notch.

[0010] For the convenience of retraction, as a preferred hydraulic clamping combined structure for injecting the middle cover of the battery in the present utility model, a sleeve is fixedly installed inside the support column, a movable column is slidably sleeved inside the sleeve, a fixed disk is fixedly installed at one end of the movable column, and the fixed disk is fixedly installed with the locking block.

[0011] For the convenience of retraction, as a preferred hydraulic clamping combined structure for injecting the middle cover of the battery in the present utility model, a return spring is sleeved outside the movable column, one end of the return spring is fixedly connected with the sleeve, and the other end of the return spring is fixedly connected with the fixed disk.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] During the process of producing the middle cover of the battery, when the upper mold and the lower mold are clamped, the pushing block is driven by the second hydraulic push rod to push the locking block, so that the locking block can smoothly slide along the fixed sleeve, and the locking block is closely fitted and butted with the locking groove. The upper mold is assisted in positioning through the locking block, so that the upper mold and the lower mold are closely pressed and fitted, and the influence of the injection molding thermal expansion effect is reduced, thereby improving the production quality of the product. Description of the Drawings

[0014] Figure 1 It is a three-dimensional structure diagram of the present utility model;

[0015] Figure 2 It is a partial three-dimensional structure diagram of the present utility model;

[0016] Figure 3 It is a partial right top view three-dimensional structure diagram of the present utility model;

[0017] Figure 4 It is a partial left top view three-dimensional structure diagram of the present utility model.

[0018] In the figure: 1, base; 2, support column; 3, support plate; 4, first hydraulic push rod; 5, upper mold; 6, lower mold; 7, mounting seat; 8, cylinder; 9, locking groove; 10, injection nozzle; 11, fixed column; 12, fixed sleeve; 13, locking block; 14, second hydraulic push rod; 15, pushing block; 16, sleeve; 17, movable column; 18, fixed disk; 19, return spring; 20, notch. Specific implementation mode

[0019] Please refer to Figures 1 to 4 , a hydraulic mold locking combined structure for injecting the middle cover of a battery, including two support columns 2 fixedly installed on the top of the base 1, a support plate 3 fixedly installed on the top of the support column 2, a lower mold 6 fixedly installed on the top of the base 1, an upper mold 5 arranged above the lower mold 6, locking grooves 9 are respectively arranged on the left and right sides of the top of the upper mold 5, a mounting seat 7 is fixedly installed on the top of the base 1, a fixed column 11 is fixedly installed on the top of the mounting seat 7, a fixed sleeve 12 is fixedly installed on the top of the fixed column 11, a locking block 13 is slidably sleeved inside the fixed sleeve 12, and the locking block 13 corresponds to the locking groove 9 in position.

[0020] In this embodiment: a fixed sleeve 12 is fixedly installed on the top of the fixed column 11, and the locking block 13 is adapted to the locking groove 9, which is convenient for restricting the locking block 13 through the fixed sleeve 12, enabling the locking block 13 to move horizontally and stably, inserting the locking block 13 into the locking groove 9 to limit the position of the upper mold 5, and making the upper mold 5 and the lower mold 6 fit tightly together.

[0021] As a technical optimization scheme of the present utility model, a first hydraulic push rod 4 is fixedly installed on the top of the support plate 3, the output end of the first hydraulic push rod 4 is fixedly installed with the top of the upper mold 5, and an injection nozzle 10 is fixedly installed on the top of the upper mold 5.

[0022] In this embodiment: the first hydraulic push rod 4 drives the upper mold 5 and the lower mold 6 to align and extrude, making the upper mold 5 and the lower mold 6 fit tightly together, which is convenient for injecting and producing the middle cover of the battery.

[0023] As a technical optimization scheme of the present utility model, two cylinders 8 are fixedly installed on the top of the upper mold 5, and the cylinders 8 penetrate through the bottom of the support plate 3 and are slidably sleeved with the support plate 3.

[0024] In this embodiment: by setting the cylinders 8, when the upper mold 5 moves, it can ensure that the upper mold 5 moves vertically, making the upper mold 5 and the lower mold 6 fit tightly and align.

[0025] As a technical optimization solution of the present utility model, a second hydraulic push rod 14 is fixedly installed on the top of the mounting seat 7. The output end of the second hydraulic push rod 14 is installed with a pushing block 15. A notch 20 is opened at the top of the locking block 13, and the pushing block 15 is slidably sleeved with the notch 20.

[0026] In this embodiment: A notch 20 is opened at the top of the locking block 13, and the pushing block 15 is slidably sleeved with the notch 20, which facilitates driving the pushing block 15 through the notch 20 by the second hydraulic push rod 14 to push the locking block 13, so that the locking block 13 can move horizontally along the fixed sleeve 12, and it is convenient for the locking block 13 to insert into the locking groove 9 to limit the position of the upper mold 5.

[0027] As a technical optimization solution of the present utility model, a sleeve 16 is fixedly installed inside the support column 2. An activity column 17 is slidably sleeved inside the sleeve 16. One end of the activity column 17 is fixedly installed with a fixed disk 18, and the fixed disk 18 is fixedly installed with the locking block 13.

[0028] In this embodiment: By providing the sleeve 16, it is convenient for the activity column 17 to perform horizontal sliding movement inside the sleeve 16.

[0029] As a technical optimization solution of the present utility model, a return spring 19 is sleeved outside the activity column 17. One end of the return spring 19 is fixedly connected to the sleeve 16, and the other end of the return spring 19 is fixedly connected to the fixed disk 18.

[0030] In this embodiment: By providing the return spring 19, it is convenient to pull the fixed disk 18 under the elastic action of the return spring 19, so that the return spring 19 can drive the fixed disk 18 and the locking block 13 to move, so that the locking block 13 can move horizontally along the fixed sleeve 12. When the pushing block 15 moves downward, the locking block 13 is driven to reset and pulled out of the locking groove 9 under the elastic action of the return spring 19, which is convenient for the upper mold 5 to rise for demoulding operation.

[0031] Working principle: When injecting and producing the battery middle cover, first, the second hydraulic push rod 14 drives the pushing block 15 to insert into the notch 20. By continuously raising the pushing block 15, the pushing block 15 can push the locking block 13 to move rightward along the fixed sleeve 12, so that the locking block 13 drives the fixed disk 18 to pull the return spring 19 to generate elastic deformation, and the movable column 17 slides along the sleeve 16. The locking block 13 inserts into the locking groove 9 to limit the locking groove 9, so that the upper mold 5 closely fits with the lower mold 6. The material is injected into the mold through the injection nozzle 10 to reduce the influence of the injection heat expansion effect. When the injection is completed, the second hydraulic push rod 14 drives the pushing block 15 to recover and reset. Under the elastic action of the return spring 19, the fixed disk 18 and the locking block 13 are pulled to move leftward for resetting, and the locking block 13 is pulled out of the locking groove 9, which is convenient for the first hydraulic push rod 4 to drive the upper mold 5 to move upward to demold the battery middle cover.

[0032] All the standard parts used in the present utility model can be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt the mature conventional means such as riveting and welding in the prior art. The machines, parts and equipment all adopt the conventional models in the prior art. Plus, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. All the electrical equipment in the present utility model is powered by an external power supply.

[0033] The above is only the preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A hydraulic clamping mold assembly structure for injection molding a battery middle cover, comprising two support columns (2) fixedly mounted on the top of a base (1), a support plate (3) fixedly mounted on the top of the support columns (2), characterized in that: A lower mold (6) is fixedly installed on the top of the base (1), an upper mold (5) is arranged above the lower mold (6), and locking grooves (9) are opened on the left and right sides of the top of the upper mold (5). A mounting seat (7) is fixedly installed on the top of the base (1), a fixing column (11) is fixedly installed on the top of the mounting seat (7), a fixing sleeve (12) is fixedly installed on the top of the fixing column (11), and a locking block (13) is slidably sleeved on the inner side of the fixing sleeve (12), and the locking block (13) corresponds to the position of the locking groove (9).

2. The hydraulic clamping assembly structure for injection molding a battery middle cover according to claim 1, characterized in that: A first hydraulic push rod (4) is fixedly mounted on the top of the support plate (3); an output end of the first hydraulic push rod (4) is fixedly mounted on the top of the upper mold (5); and an injection nozzle (10) is fixedly mounted on the top of the upper mold (5).

3. The hydraulic clamping mold assembly structure for injection molding a battery middle cover according to claim 1, characterized in that: Two cylinders (8) are fixedly mounted on the top of the upper mold (5); the cylinders (8) penetrate the bottom of the support plate (3) and are slidably sleeved with the support plate (3).

4. The hydraulic clamping mold assembly structure for injection molding a battery middle cover according to claim 1, characterized in that: A second hydraulic push rod (14) is fixedly mounted on the top of the mounting seat (7), a push block (15) is mounted on the output end of the second hydraulic push rod (14), a notch (20) is formed on the top of the locking block (13), and the push block (15) is slidably sleeved with the notch (20).

5. The hydraulic clamping mold assembly structure for injection molding a battery middle cover according to claim 1, characterized in that: A sleeve (16) is fixedly mounted on the inner side of the support column (2), a movable column (17) is slidably sleeved on the inner side of the sleeve (16), a fixed plate (18) is fixedly mounted on one end of the movable column (17), and the fixed plate (18) is fixedly mounted on the locking block (13).

6. The hydraulic clamping mold assembly structure for injection molding a battery middle cover according to claim 5, characterized in that: A return spring (19) is sleeved on the outer side of the movable column (17), one end of the return spring (19) is fixedly connected to the sleeve (16), and the other end of the return spring (19) is fixedly connected to the fixed plate (18).

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