Portable lithium battery charger injection mold

Abstract

The utility model belongs to the technical field of injection molds, and discloses a portable lithium battery charger injection mold which comprises a working table, an air cylinder is fixedly connected to the outer wall of the top end of the working table, an upper mold is fixedly connected to the movable end of the air cylinder, and a fixing plate is fixedly connected to the outer wall of the working table. And a lower mold is detachably installed on the inner wall of the fixing plate, an injection molding cavity is formed in the outer wall of the lower mold, a clamping groove is formed in the outer wall of the fixing plate, the inner wall of the lower mold is elastically connected with a clamping block through a connecting spring, and a demolding mechanism is arranged on the outer wall of the workbench. When the upper mold moves upwards to open the mold, the L-shaped plate can drive the moving block to move upwards synchronously by supporting the check block, so that the jacking block ejects a lithium battery charger model in the injection molding cavity upwards, automatic demolding operation is completed, convenience is achieved, and the problem that an operator is scalded due to the fact that the temperature of the mold is too high is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds, in particular to a portable lithium battery charger injection mold. Background Art

[0002] An injection mold for a lithium battery charger is a specially designed tool used to produce the plastic parts of a lithium battery charger on an injection molding machine. These molds are usually made of metal and have the precise structure and shape of the charger housing or other parts. Injection molds play a key role in the injection molding process by injecting molten plastic or other materials into the mold to form the various components of the charger.

[0003] During the injection molding process, the upper and lower molds need to fit together, and the plastic is formed in the injection molding cavity formed by the two. After the molding is cooled, the upper and lower molds will separate for demolding. In some existing technologies, the operator is required to manually remove the lithium battery charger model for demolding. This process is not only inefficient and troublesome, but also the upper and lower molds may still retain a high residual temperature after cooling. If the operator accidentally touches the mold, it may cause burns. Therefore, a portable lithium battery charger injection mold is proposed to address the above problems. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the utility model provides a portable lithium battery charger injection mold, which solves the problem of manual demoulding being inconvenient for operators.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: a portable lithium battery charger injection mold, comprising a workbench, a cylinder fixedly connected to the top outer wall of the workbench, an upper mold fixedly connected to the movable end of the cylinder, a fixed plate fixedly connected to the outer wall of the workbench, a lower mold detachably mounted on the inner wall of the fixed plate, an injection cavity defined in the outer wall of the lower mold, a card slot defined in the outer wall of the fixed plate, a card block elastically connected to the inner wall of the lower mold via a connecting spring, and a demolding mechanism provided on the outer wall of the workbench;

[0006] The demoulding mechanism includes a moving block, the inner wall of the moving block is rotatably connected to a rotating wheel, the inner wall of the moving block is elastically connected to a stop block through a reset spring, a traction rope is wrapped around the outer wall of the rotating wheel, the outer wall of the upper mold is fixedly connected to an L-shaped plate, and the top outer wall of the moving block is fixedly connected to a lifting block.

[0007] Preferably, one end of the connecting spring is fixedly connected to the outer wall of the clamping block, and the other end of the connecting spring is fixedly connected to the inner wall of the lower mold.

[0008] Preferably, the outer wall of the clamping block is slidably connected to the inner wall of the lower mold, and the clamping block is clamped in the clamping slot.

[0009] Preferably, the movable block is slidably connected to the inner wall of the fixed plate, and the outer wall of the lower mold is in contact with the inner wall of the fixed plate.

[0010] Preferably, one end of the traction rope is fixedly connected to the outer wall of the stopper, and the other end of the traction rope is fixedly connected to the outer wall of the workbench.

[0011] Preferably, one end of the return spring is fixedly connected to the outer wall of the stop block, and the other end of the return spring is fixedly connected to the inner wall of the moving block.

[0012] Preferably, the outer wall of the stopper is slidably connected to the inner wall of the moving block, and the stopper is in contact with the inner wall of the L-shaped plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] The utility model relates to an L-shaped plate that contacts a stop block when the upper mold moves downward. When the mold is closed, the lower part of the L-shaped plate is below the stop block. When the upper mold moves upward to open the mold, the L-shaped plate can lift the stop block to drive the moving block to move upward synchronously, so that the lifting block pushes the lithium battery charger model in the injection cavity upward, thereby completing the automatic demoulding operation. It is more convenient, reduces the operating steps of the operator, and avoids the problem of the operator being scalded by excessive mold temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the upper mold structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the movable block of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the movable block and the lower mold after decomposition of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the movable block and the lower mold after cross-section decomposition of the utility model.

[0020] In the figure: 1. Workbench; 2. Demolding mechanism; 201. Moving block; 202. L-shaped plate; 203. Rotating wheel; 204. Pulling rope; 205. Return spring; 206. Stop block; 3. Fixed plate; 4. Lower mold; 5. Cylinder; 6. Upper mold; 7. Clamping block; 8. Connecting spring; 9. Injection cavity; 10. Clamping slot; 11. Lifting block. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] like Figures 1 to 5 As shown, the utility model provides a portable lithium battery charger injection mold, including a workbench 1, the top outer wall of the workbench 1 is fixedly connected to a cylinder 5, the movable end of the cylinder 5 is fixedly connected to an upper mold 6, the outer wall of the workbench 1 is fixedly connected to a fixed plate 3, the inner wall of the fixed plate 3 is detachably mounted with a lower mold 4, the outer wall of the lower mold 4 is provided with an injection cavity 9, the outer wall of the fixed plate 3 is provided with a card slot 10, the inner wall of the lower mold 4 is elastically connected to a card block 7 through a connecting spring 8, the outer wall of the workbench 1 is provided with a demolding mechanism 2, the demolding mechanism 2 includes a moving block 201, the inner wall of the moving block 201 is rotatably connected to a rotating wheel 203, the inner wall of the moving block 201 is elastically connected to a stopper 206 through a reset spring 205, a traction rope 204 is wound around the outer wall of the rotating wheel 203, the outer wall of the upper mold 6 is fixedly connected to an L-shaped plate 202, and the top outer wall of the moving block 201 is fixedly connected to a lifting block 11.

[0023] The above scheme is adopted: the upper mold 6 and the lower mold 4 together constitute the main body of the lithium battery charger injection mold, the upper mold 6 is provided with an injection hole, the cylinder 5 can drive the upper mold 6 to move downward and fit with the lower mold 4, and after the mold is closed, the external injection molding equipment can perform the injection molding operation through the injection hole on the upper mold 6 and form it in the injection cavity 9, which is the existing technology; the fixed plate 3 is provided with two groups of front and back symmetry, the lower mold 4 can be installed in the upper part of the fixed plate 3, the moving block 201 is located in the lower part of the fixed plate 3 and contacts the outer wall of the workbench 1; the L-shaped plate 202 is provided with symmetrical When the upper mold 6 moves downward to close the mold, the L-shaped plate 202 will not contact the outer wall of the lower mold 4, thereby not affecting the mold closing; after the lower mold 4 is installed between the two sets of fixed plates 3, the top outer wall of the jacking block 11 is flush with the bottom inner wall of the injection cavity 9. When the injection is completed and the mold is opened, the jacking block 11 will move upward synchronously with the upper mold 6. The jacking block 11 can lift the lithium battery charger model in the injection cavity 9 upward, which has the effect of automatic demoulding. There is no need for manual demoulding, which simplifies the operating steps of the operator and avoids the problem that the operator may be burned by contact with the mold.

[0024] like Figures 1 to 5As shown, one end of the connecting spring 8 is fixedly connected to the outer wall of the clamping block 7, and the other end of the connecting spring 8 is fixedly connected to the inner wall of the lower mold 4; the outer wall of the clamping block 7 is slidably connected to the inner wall of the lower mold 4, and the clamping block 7 is engaged with the clamping groove 10; the moving block 201 is slidably connected to the inner wall of the fixed plate 3, and the outer wall of the lower mold 4 is in contact with the inner wall of the fixed plate 3.

[0025] The above scheme is adopted: two groups of connecting springs 8 and card blocks 7 are set, and are symmetrically distributed on the inner walls on both sides of the lower mold 4. The outer walls of each group of fixed plates 3 are provided with card slots 10. When the lower mold 4 is installed, the two groups of card blocks 7 can be pressed inward, the connecting springs 8 are forced to shrink, and the lower mold 4 is moved downward to contact with the fixed plate 3. When the positions of the card blocks 7 and the card slots 10 correspond to each other, the card blocks 7 pop out due to the elastic force of the connecting springs 8 themselves and engage with the card slots 10, so that the lower mold 4 can be fixed in the fixed plate 3; when the lower mold 4 needs to be replaced, the two groups of card blocks 7 are pressed at the same time to make them disengage from the card slots 10, and the limit of the lower mold 4 can be released and it can be removed, and the disassembly and installation process is relatively convenient.

[0026] like Figures 1 to 5 As shown, one end of the traction rope 204 is fixedly connected to the outer wall of the stop block 206, and the other end of the traction rope 204 is fixedly connected to the outer wall of the workbench 1; one end of the return spring 205 is fixedly connected to the outer wall of the stop block 206, and the other end of the return spring 205 is fixedly connected to the inner wall of the moving block 201; the outer wall of the stop block 206 is slidably connected to the inner wall of the moving block 201, and the stop block 206 contacts the inner wall of the L-shaped plate 202.

[0027] Adopting the above scheme: under the condition that there is no external force, the moving block 201 contacts the outer wall of the workbench 1. At this time, the return spring 205 drives the two sets of stoppers 206 to keep moving outward due to its own elastic force, and the arc surface of the stoppers 206 always faces upward; when the upper mold 6 moves downward, the outer wall of the bottom end of the L-shaped plate 202 squeezes the arc surface of the stoppers 206, so that the stoppers 206 move to the inner wall of the moving block 201; after the mold is closed, as shown in FIG. Figure 2As shown, a horizontal portion of the lower portion of the L-shaped plate 202 is located directly below the stopper 206. When the molding is completed and the mold needs to be opened, the L-shaped plate 202 moves upward with the upper mold 6, and directly contacts the lower portion of the stopper 206, driving the stopper 206 and the moving block 201 to move upward at the same time; when the moving block 201 moves upward, the two sets of runners 203 move upward along the outer wall of the traction rope 204, so that the traction rope 204 and the fixed end of the stopper 206 move toward the middle at the same time, driving the two sets of stoppers 206 to move toward the middle at the same time, and the return spring 205 is forced to contract; at the same time, the moving block 201 drives the lifting block 11 to move toward the inner wall of the injection cavity 9 The movable block 201 moves upward to extrude the lithium battery charger model, so that it is separated from the injection cavity 9, and the automatic demoulding operation can be completed; since the stopper 206 moves toward the middle at the same time during the upward movement of the movable block 201, when the stopper 206 is completely moved to be out of contact with the L-shaped plate 202, the movable block 201 moves downward to reset, and the stopper 206 rebounds and resets under the elastic force of the reset spring 205, and can return to the initial state; thus, the demoulding can be automatically performed during the mold opening process, which reduces the steps requiring operator intervention, reduces the work intensity, is more convenient to operate, and avoids the problem of burns to the operator due to excessive mold temperature.

[0028] The working principle and use process of this utility model:

[0029] When injection molding is required, a suitable lower mold 4 can be selected for installation; when removing an unsuitable lower mold 4, the two groups of clamping blocks 7 can be pressed at the same time to disengage them from the clamping slot 10, and the lower mold 4 can be removed; then, when installing a suitable lower mold 4, the two groups of clamping blocks 7 are pressed inward, the connecting spring 8 is forced to shrink, and then the lower mold 4 is moved downward to contact with the fixed plate 3. When the position of the clamping block 7 corresponds to the position of the clamping slot 10, the clamping block 7 pops out due to the elastic force of the connecting spring 8 itself and engages with the clamping slot 10, thereby fixing the lower mold 4 in the fixed plate 3. The disassembly and installation process is more convenient and quick, thereby improving work efficiency.

[0030] During the injection molding operation, the cylinder 5 drives the upper mold 6 to move downward and fit into the lower mold 4. During this process, the arc surface of the stop block 206 is squeezed from the bottom of the L-shaped plate 202, causing it to move to the inner wall of the moving block 201; when the upper mold 6 and the lower mold 4 are completely fit together, the lower part of the L-shaped plate 202 is directly below the stop block 206. At this time, the external injection molding equipment can inject into the injection cavity 9 through the injection hole on the upper mold 6.

[0031] When the injection molding is completed and the mold is opened, the upper mold 6 moves upward. During this process, the L-shaped plate 202 moves upward with the upper mold 6. The horizontal part below the L-shaped plate 202 first contacts the bottom of the stop block 206, driving the stop block 206 and the moving block 201 to move upward at the same time. When the moving block 201 moves upward, the two sets of wheels 203 move upward along the outer wall of the traction rope 204, so that the two sets of traction ropes 204 and the fixed end of the stop block 206 move toward the middle at the same time, driving the two sets of stop blocks 206 to move toward the middle at the same time, and the return spring 205 is forced to shrink; at the same time, the moving block 201 drives the lifting block 11 to move upward in the inner wall of the injection cavity 9, and the extruded lithium battery charger model is separated from the injection cavity 9, completing the automatic demoulding operation.

[0032] Since the stop block 206 moves toward the middle at the same time during the upward movement of the moving block 201, when the stop block 206 is completely moved to disengage from the L-shaped plate 202, the moving block 201 moves downward and resets, and the stop block 206 rebounds and resets under the elastic force of the reset spring 205 to return to its initial state; thereby, the demoulding operation can be automatically completed during the mold opening process through the demoulding mechanism 2, and there is no need for the operator to intervene in the demoulding, which simplifies the operation process, reduces the work intensity, and avoids the problem that the operator may be burned by the high-temperature mold when manually demoulding.

[0033] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable lithium battery charger injection mold, comprising a workbench (1), characterized in that: The top outer wall of the workbench (1) is fixedly connected to a cylinder (5), the movable end of the cylinder (5) is fixedly connected to an upper mold (6), the outer wall of the workbench (1) is fixedly connected to a fixed plate (3), the inner wall of the fixed plate (3) is detachably mounted with a lower mold (4), the outer wall of the lower mold (4) is provided with an injection cavity (9), the outer wall of the fixed plate (3) is provided with a card slot (10), the inner wall of the lower mold (4) is elastically connected to a card block (7) via a connecting spring (8), and the outer wall of the workbench (1) is provided with a demoulding mechanism (2); The demoulding mechanism (2) comprises a moving block (201), the inner wall of the moving block (201) is rotatably connected to a rotating wheel (203), the inner wall of the moving block (201) is elastically connected to a stopper (206) via a return spring (205), a traction rope (204) is wound around the outer wall of the rotating wheel (203), the outer wall of the upper mold (6) is fixedly connected to an L-shaped plate (202), and the outer wall of the top end of the moving block (201) is fixedly connected to a lifting block (11).

2. The portable lithium battery charger injection mold according to claim 1, characterized in that: One end of the connecting spring (8) is fixedly connected to the outer wall of the clamping block (7), and the other end of the connecting spring (8) is fixedly connected to the inner wall of the lower mold (4).

3. The portable lithium battery charger injection mold according to claim 1, characterized in that: The outer wall of the clamping block (7) is slidably connected to the inner wall of the lower mold (4), and the clamping block (7) is clamped to the clamping groove (10).

4. The portable lithium battery charger injection mold according to claim 1, characterized in that: The movable block (201) is slidably connected to the inner wall of the fixed plate (3), and the outer wall of the lower mold (4) is in contact with the inner wall of the fixed plate (3).

5. The portable lithium battery charger injection mold according to claim 1, characterized in that: One end of the traction rope (204) is fixedly connected to the outer wall of the stopper (206), and the other end of the traction rope (204) is fixedly connected to the outer wall of the workbench (1).

6. The portable lithium battery charger injection mold according to claim 1, characterized in that: One end of the return spring (205) is fixedly connected to the outer wall of the stop block (206), and the other end of the return spring (205) is fixedly connected to the inner wall of the moving block (201).

7. The portable lithium battery charger injection mold according to claim 1, characterized in that: The outer wall of the stopper (206) is slidably connected to the inner wall of the moving block (201), and the stopper (206) is in contact with the inner wall of the L-shaped plate (202).

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