Injection mold for processing lithium battery shell

Abstract

The utility model discloses an injection mold for processing a lithium battery shell, and relates to the technical field of battery shell processing. The device comprises a bottom plate, the two sides of the top end of the bottom plate are fixedly connected with supporting plates, the top ends of the two supporting plates are jointly and fixedly connected with a top plate, a first motor is fixedly arranged on one side of the top end of the top plate, the output end of the first motor is fixedly connected with a rotating disc, and a mold pressing device is fixedly arranged at the bottom end of a connecting rod. Two guide rods are fixedly connected to the two sides of the top end of the bottom plate correspondingly, an upper mold plate is arranged below the connecting plate, a base plate is fixedly connected to the bottom end of the upper mold plate, four spring shafts are fixedly connected to the bottom end of the mold pressing plate, a mold frame is fixedly connected to the bottom ends of the four spring shafts, and a lower mold plate is fixedly inserted into the top end of the bottom plate; through the cooperation of the connecting shaft and the connecting rod and the action of the clutch plate, the effects of circulating and stable reciprocating mould pressing motion and emergency interruption are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery shell processing, in particular to an injection mold for processing a lithium battery shell. Background Art

[0002] An injection mold is a process commonly used for battery shell processing. During the injection process, parameters of an injection molding machine, such as injection pressure, injection speed, mold temperature, and plastic temperature, need to be set according to the characteristics of the material and the size of the mold to ensure that the molten plastic can be evenly injected into the mold and cooled and solidified in the mold, avoiding defects such as air bubbles, flow marks, or shrinkage. Injection molds used for different types of battery shells may vary, and specific mold manufacturing needs to be adjusted according to the actual situation. Common injection molds are divided into single parting surface injection molds, double parting surface injection molds, injection molds with movable forming parts, etc.

[0003] Most injection stamping molds often cannot perform cyclic die pressing during the injection process. Their die pressing method is relatively cumbersome, and it may cause instability of the die pressing pressure during the die pressing process, resulting in defects or deformation in the appearance accuracy of the mold. Moreover, most injection stamping molds are prone to program failures or stamping overload during equipment operation, leading to mold damage and unable to perform an interruption operation on the stamping mold, increasing a certain degree of danger in mold manufacturing. Summary of the Utility Model

[0004] In order to solve the problems of inability to repeatedly stamp the mold and inability to brake the stamping mold; the purpose of the utility model is to provide an injection mold for processing a lithium battery shell.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: An injection mold for processing a lithium battery shell, including a bottom plate. Both sides of the top end of the bottom plate are fixedly connected with support plates. The top ends of the two support plates are fixedly connected together with a top plate. One side of the top end of the top plate is fixedly provided with a first motor. The output end of the first motor is fixedly connected with a turntable. One end of the turntable is fixedly connected with a connecting shaft. One end of the connecting shaft is rotatably connected with a connecting rod. The bottom end of the connecting rod is fixedly provided with a die pressing device. Both sides of the top end of the bottom plate are fixedly connected with two guide rods. The die pressing device includes a connecting plate. The bottom end of the connecting rod is fixedly connected with the top end of the connecting plate. A top template is arranged below the connecting plate. The bottom end of the top template is fixedly connected with a backing plate. The bottom end of the backing plate is fixedly connected with a clamping plate. The bottom end of the clamping plate is fixedly connected with a die pressing plate. The bottom end of the die pressing plate is fixedly connected with four spring shafts. The bottom ends of the four spring shafts are fixedly connected with a mold frame. The bottom plate is fixedly inserted with a bottom template at the top end.

[0006] Preferably, clamping grooves are formed at both ends of the connecting plate. Two fixing plates are fixedly arranged at both ends of the upper template. A clutch plate is rotatably arranged between the two fixing plates on the same horizontal side. One ends of the two clutch plates are respectively slidably connected with the inner walls of the two clamping grooves. Second motors are fixedly installed at both ends of the upper template. Output ends of the two second motors are respectively fixedly connected with the two clutch plates. An injection molding pipe penetrates and is connected to one end of the lower template.

[0007] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0008] 1. By means of the force of eccentric rotation for die stamping, the stamping force of the utility model is more cyclic and stable, realizing the cyclic stamping motion mode of the die, reducing the operation cost of die stamping, and improving the operation efficiency of injection molding and stamping integration automation.

[0009] 2. By arranging the clutch plate, when overloading stamping occurs, emergency braking can be carried out, the stamping power can be cut off in time, the stamping die can be protected from being damaged, and the safety of operators can be ensured. Description of the Drawings

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0011] Figure 1 It is a schematic structural diagram of the present utility model.

[0012] Figure 2 It is a schematic structural diagram of the molding device of the present utility model.

[0013] Figure 3 It is a schematic structural diagram of the present utility model.

[0014] In the figure: 1, bottom plate; 2, support plate; 3, top plate; 4, guide rod; 5, first motor; 6, turntable; 7, connecting shaft; 8, connecting rod; 9, molding device; 91, connecting plate; 92, upper template; 93, backing plate; 94, clamping plate; 95, molding plate; 96, mold frame; 97, spring shaft; 98, lower template; 11, fixing plate; 12, clutch plate; 13, clamping groove; 14, second motor; 15, injection molding pipe. Detailed Embodiment

[0015] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0016] Embodiment 1: As Figures 1-3 shown, the present utility model provides an injection mold for processing a lithium battery shell, including a bottom plate 1. Both sides of the top end of the bottom plate 1 are fixedly connected with support plates 2. The top ends of the two support plates 2 are jointly fixedly connected with a top plate 3. One side of the top end of the top plate 3 is fixedly provided with a first motor 5. The output end of the first motor 5 is fixedly connected with a turntable 6. One end of the turntable 6 is fixedly connected with a connecting shaft 7. One end of the connecting shaft 7 is rotatably connected with a connecting rod 8. The bottom end of the connecting rod 8 is fixedly provided with a molding device 9. Both sides of the top end of the bottom plate 1 are fixedly connected with two guide rods 4. The molding device 9 includes a connecting plate 91. The bottom end of the connecting rod 8 is fixedly connected with the top end of the connecting plate 91. A top template 92 is arranged below the connecting plate 91. The bottom end of the top template 92 is fixedly connected with a backing plate 93. The bottom end of the backing plate 93 is fixedly connected with a clamping plate 94. The bottom end of the clamping plate 94 is fixedly connected with a molding plate 95. The bottom end of the molding plate 95 is fixedly connected with four spring shafts 97. The bottom ends of the four spring shafts 97 are fixedly connected with a mold frame 96. The top end of the bottom plate 1 is fixedly inserted with a bottom template 98. The bottom end of the bottom template 98 is fixedly connected with four pins. Start the first motor 5. The output end of the first motor 5 rotates the turntable 6, so that the connecting shaft 7 located at the eccentric position rotates eccentrically. The eccentrically rotating connecting shaft 7 drives the connecting rod 8 to move up and down. The moving connecting rod 8 drives the connecting plate 91 and the top template 92 in the molding device 9 to slide vertically on the outer surface of the guide rods 4. When the connecting shaft 7 rotates to a certain angle, turn off the first motor 5. Inject through the injection pipe 15 at the groove of the bottom template 98. The molding plate 95 fixedly connected with the top template 92, the backing plate 93 and the clamping plate 94 presses down through the rectangular groove in the mold frame 96 under the protection of the acting force of the four spring shafts 97. The vertically pressing molding plate 95 presses the groove of the bottom template 98 to complete the molding and injection movement.

[0017] Both ends of the connecting plate 91 are provided with clamping grooves 13. Both ends of the upper template 92 are fixedly provided with two fixing plates 11. A clutch plate 12 is rotatably arranged between the two fixing plates 11 on the same horizontal side. One ends of the two clutch plates 12 are respectively slidably connected to the inner walls of the two clamping grooves 13. Both ends of the upper template 92 are fixedly installed with second motors 14. The output ends of the two second motors 14 are fixedly connected to the two clutch plates 12. One end of the lower template 98 is connected through an injection molding pipe 15. When the two second motors 14 are started, the output ends of the two second motors 14 drive the clutch plates 12 to rotate, so that one ends of the clutch plates 12 are separated from the clamping grooves 13. At this time, the connecting rod 8 only drives the connecting plate 91 to move up and down, and does not drive the upper template 92 to move, thus realizing the clutch movement of the molding action.

[0018] Sliding grooves for cooperating with the guide rods 4 are provided on the outer surfaces of the connecting plate 91 and the upper template 92. The four guide rods 4 are jointly inserted through the connecting plate 91 and the upper template 92. The four spring shafts 97 are distributed in a rectangular array. A through rectangular groove is provided in the middle of the mold base 96, and the size of the rectangular groove is the same as that of the mold pressing plate 95. The four guide rods 4 play a role in facilitating no displacement deviation during the molding process. The spring shafts 97 distributed in a rectangular array play a role in buffering and protecting. The through rectangular groove plays a role in facilitating the stable positioning of the mold pressing plate 95 through the rectangular groove.

[0019] A groove is provided in the middle of the lower template 98, and the size of the groove is larger than that of the mold pressing plate 95. The center points of the mold pressing plate 95 and the lower template 98 are on the same horizontal line. Through the larger-sized groove, the mold pressing plate 95 realizes the stamping of the battery shell shape inside the groove.

[0020] The connecting shaft 7 is rotatably connected to the eccentric part of the turntable 6, aiming to facilitate the connecting rod 8 to move up and down under the eccentric acting force through the eccentric connecting shaft 7.

[0021] Working principle: When an injection mold is needed, the first motor 5 is started. The output end of the first motor 5 rotates the turntable 6, so that the connecting shaft 7 located at the eccentric part rotates eccentrically. The eccentrically rotating connecting shaft 7 drives the connecting rod 8 to move up and down. The moving connecting rod 8 drives the connecting plate 91 and the upper template 92 in the molding device 9 to slide vertically on the outer surfaces of the guide rods 4;

[0022] When the connecting shaft 7 rotates to a certain angle, the first motor 5 is turned off, and injection molding is carried out at the groove of the lower template 98 through the injection molding pipe 15. The mold pressing plate 95 fixedly connected to the upper template 92, the backing plate 93, and the clamping plate 94 presses down through the rectangular groove in the mold base 96 under the protection of the acting force of the four spring shafts 97. The vertically pressing mold pressing plate 95 presses on the groove of the lower template 98 to complete the compression molding injection movement. When injection molding and compression molding are required again, the first motor 5 is started again, and the cyclic compression molding movement is completed through the eccentric acting force;

[0023] When it is necessary to interrupt the injection molding and compression molding action in time in case of special circumstances, two second motors 14 are started. The output ends of the two second motors 14 drive the clutch plate 12 to rotate, so that one end of the clutch plate 12 disengages from the clamping groove 13. At this time, the connecting rod 8 only drives the connecting plate 91 to move up and down, without driving the upper template 92 to move, thereby realizing the clutch movement of the compression molding action.

[0024] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. An injection mold for processing the shell of a lithium battery, comprising a bottom plate (1), characterized in that: Both sides of the top end of the bottom plate (1) are fixedly connected with support plates (2), the top ends of the two support plates (2) are jointly fixedly connected with a top plate (3), one side of the top end of the top plate (3) is fixedly provided with a first motor (5), the output end of the first motor (5) is fixedly connected with a turntable (6), one end of the turntable (6) is fixedly connected with a connecting shaft (7), one end of the connecting shaft (7) is rotatably connected with a connecting rod (8), the bottom end of the connecting rod (8) is fixedly provided with a molding device (9), and both sides of the top end of the bottom plate (1) are fixedly connected with two guide rods (4); The molding device (9) includes a connecting plate (91), the bottom end of the connecting rod (8) is fixedly connected with the top end of the connecting plate (91), a top template (92) is arranged below the connecting plate (91), a backing plate (93) is fixedly connected to the bottom end of the top template (92), a clamping plate (94) is fixedly connected to the bottom end of the backing plate (93), a molding plate (95) is fixedly connected to the bottom end of the clamping plate (94), four spring shafts (97) are fixedly connected to the bottom end of the molding plate (95), the bottom ends of the four spring shafts (97) are fixedly connected with a mold frame (96), and a bottom template (98) is fixedly inserted into the top end of the bottom plate (1).

2. The injection mold for processing the lithium battery shell according to claim 1, characterized in that, Chuck grooves (13) are formed at both ends of the connecting plate (91), two fixing plates (11) are fixedly provided at both ends of the top template (92), a clutch plate (12) is rotatably arranged between the two fixing plates (11) on the same horizontal side, one ends of the two clutch plates (12) are respectively slidably connected with the inner walls of the two chuck grooves (13), second motors (14) are fixedly installed at both ends of the top template (92), the output ends of the two second motors (14) are respectively fixedly connected with the two clutch plates (12), and an injection molding pipe (15) is connected through one end of the bottom template (98).

3. An injection mold for processing a lithium battery shell according to claim 1, characterized in that, Sliding grooves for using the guide rods (4) are formed on the outer surfaces of the connecting plate (91) and the top template (92), and the four guide rods (4) are jointly inserted through the connecting plate (91) and the top template (92).

4. The injection mold for processing the lithium battery housing according to claim 1, characterized in that, The connecting shaft (7) is rotatably connected to the eccentric position of the turntable (6).

5. An injection mold for processing a lithium battery housing according to claim 1, characterized in that, The four spring shafts (97) are distributed in a rectangular array.

6. The injection mold for processing the lithium battery housing according to claim 1, characterized in that, A through rectangular groove is formed in the middle of the mold frame (96), and the size of the rectangular groove is the same as that of the molding plate (95).

7. An injection mold for processing a lithium battery case according to claim 1, characterized in that, A groove is formed in the middle of the bottom template (98), and the size of the groove is larger than that of the molding plate (95), and the center point of the molding plate (95) and the center point of the bottom template (98) are on the same horizontal line.

8. The injection mold for processing the lithium battery shell according to claim 1, wherein, Four pins are fixedly connected to the bottom end of the bottom template (98).

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