Special mold for plastic shell zinc-manganese dry battery

Abstract

The invention relates to the field of dry battery molds, in particular to a special mold for a plastic shell zinc-manganese dry battery, which comprises a fixing frame, a female mold seat, a male mold seat and a cover plate, a driving mechanism for driving the cover plate to vertically reciprocate up and down is mounted on the fixing frame, a first groove is formed in the inner bottom end of the female mold seat, and a lower demolding block is vertically slidably mounted on the inner side of the first groove; a lower demolding block is arranged at the bottom end of the male mold base, a second groove is formed in the bottom end of the male mold base, an upper demolding block is vertically and slidably installed on the inner side of the second groove, and the lower demolding block and the upper demolding block are both connected with a driving mechanism. The lower demolding block and the upper demolding block are driven to reciprocate up and down on the inner sides of the first groove and the second groove respectively, so that no matter whether the dry battery shell is adhered to the outer side of the male mold base or the inner side of the female mold base, the dry battery shell can be pushed away from the female mold base through the lower demolding block, or the dry battery shell can be pushed away from the male mold base through the upper demolding block, and automatic demolding is achieved. And the demolding action is stable and reliable.

Description

Technical Field

[0001] The invention relates to a mould, in particular to a special mould for a plastic case zinc-manganese dry battery applied in the field of dry battery moulds. Background Art

[0002] Zinc-manganese battery is a primary battery with manganese dioxide as the positive electrode, zinc as the negative electrode, and ammonium chloride aqueous solution as the main electrolyte, commonly known as dry battery. During the production process of dry battery, mold injection molding is required to produce the shell. During the use of existing molds, the shell may get stuck in the mold after molding, thus affecting the demoulding of the shell and further affecting the practicality of the mold. Therefore, improvements need to be made.

[0003] After searching, for example, the specification of patent application number CN202021743348.7 discloses a mold for alkaline dry batteries, including a base, a protective cover is fixedly installed at the bottom of the base, and a lifting mechanism is arranged on the left side of the top of the base, and the lifting mechanism is composed of a support plate, a slide rail, a support block, a reduction motor, a screw rod, a first connecting block, an indicator label and a second connecting block. The second connecting block and the right side of the first connecting block are fixedly connected with the same mold assembly. If the shell is stuck in the outer mold, the reduction motor drives the screw rod to rotate so that the first connecting block drives the outer mold to descend. At this time, the shell can be pushed by the first ejector plate and the support rod, so that the staff can remove the shell from the outer mold. If the shell is stuck on the outer surface of the inner mold, the second ejector plate is pushed by pushing the vertical rod to push the shell, so that the staff can remove the shell from the outer surface of the inner mold. In summary, the mold can facilitate demoulding of the shell.

[0004] Based on the above search and in combination with the prior art, it is found that the auxiliary demolding structures of the existing zinc-manganese dry battery molds are mostly independently set, and the molds are generally divided into two parts, a male mold and a female mold. It is also necessary to set additional driving forces to achieve demolding, which is rather troublesome. Therefore, a special mold for a plastic shell zinc-manganese dry battery is proposed to improve the above problems. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the auxiliary demoulding structure of the existing zinc-manganese dry battery mold is mostly independently set, and the mold is generally divided into two parts: a male mold and a female mold. It is also necessary to set additional driving forces separately to achieve demoulding, which is rather troublesome.

[0006] In order to solve the above problems, the present invention provides a special mold for a molded zinc-manganese dry battery, comprising: A fixing frame, wherein a die seat is installed at the inner bottom end of the fixing frame, a punch seat is arranged inside the die seat, a cover plate is fixed at the top end of the punch seat, and a gap between the die seat, the punch seat and the cover plate is a mold cavity for forming a dry cell shell; A driving mechanism is installed on the fixing frame, and the driving mechanism is connected to the cover plate to drive the cover plate to move vertically up and down; The inner bottom end of the die seat is provided with a groove 1, and a lower stripping module is vertically slidably installed inside the groove 1; The bottom end of the punch seat is provided with a groove 2, and an upper and lower stripping module is vertically slidably installed inside the groove 2; The lower stripping module and the upper stripping module are both connected to the driving mechanism. When the driving mechanism drives the cover plate to move upward, the lower stripping module and the upper stripping module are driven to reciprocate up and down on the inner sides of the groove one and the groove two respectively.

[0007] In the above-mentioned special mold for the plastic case zinc-manganese dry battery, through the coordinated arrangement of the driving mechanism, the lower stripping module and the upper stripping module, the driving mechanism can be used to drive the cover plate to move upward to realize mold opening, while driving the lower stripping module and the upper stripping module to move back and forth up and down on the inner sides of the groove one and the groove two respectively. Therefore, no matter whether the dry battery shell is adhered to the outer side of the punch seat or the inner side of the die seat, the lower stripping module can be used to push the dry battery shell away from the die seat, or the upper stripping module can be used to push the dry battery shell away from the punch seat, so as to realize automatic demolding, and the demolding action is stable and reliable.

[0008] As a further supplement to the present application, the driving mechanism includes a driving motor, a threaded screw, a transmission unit 1 and a transmission unit 2; The drive motor is mounted on the fixing frame, the threaded screw is vertically mounted on the inner side of the fixing frame, and one end of the threaded screw is coaxially fixed with the output shaft of the drive motor. A fixing block is fixed on the side end of the cover plate, and a threaded hole is provided on the fixing block for the threaded screw to pass through. A guide structure is provided between the fixing frame and the fixing block; The transmission unit 1 is connected between the threaded screw and the lower stripping module; The second transmission unit is connected between the threaded screw and the upper stripping module; the driving motor drives the threaded screw to rotate, and the rotating threaded screw drives the cover plate to move up and down with the punch seat, the punch seat moves up to open the mold, and the punch seat moves down to close the mold.

[0009] As a further supplement to the present application, the guide structure includes a guide slide rod, which is vertically fixed on the inner side of the fixed frame, and a sliding hole is provided on the fixed block for the guide slide rod to slide through; the sliding cooperation between the guide slide rod and the sliding hole can ensure that the cover plate can move up and down stably with the punch seat under the drive of the threaded screw.

[0010] As a further supplement to the present application, a transmission unit 1 includes a sprocket 1, a chain 1 and a transmission shaft 1; There are two sprocket wheels 1, which are coaxially fixed to the bottom end of the threaded screw and the bottom end of the transmission shaft 1 respectively, and the chain 1 is connected between the two sprocket wheels 1; The lower end of the transmission shaft is rotatably mounted on the fixed frame, the upper end portion of the transmission shaft is arranged as a bidirectional threaded section, and the lower end of the lower stripping module is arranged with a thread groove which is threadably matched with the bidirectional threaded section of the transmission shaft; through the coordinated arrangement of the sprocket, the chain and the transmission shaft, the transmission shaft can be driven by the threaded screw to rotate, and the rotating transmission shaft drives the lower stripping module to reciprocate up and down by the bidirectional threaded section of its upper end portion, thereby pushing the dry battery shell adhered to the inner side of the die seat upward, so that the dry battery shell and the inner surface of the die seat are relatively displaced, thereby being separated from the inner surface of the die seat, making it convenient for the operator to smoothly remove the dry battery shell.

[0011] As a further supplement to the present application, the transmission unit 2 includes a square shaft, a first transmission part and a second transmission part; The square shaft is installed on the inner side of the fixing frame for vertical rotation and is connected with the threaded screw through the first transmission part. The second transmission part is connected between the square shaft and the upper stripping module.

[0012] As a further supplement to the present application, the first transmission part includes gear 1 and gear 2; Gear one and gear two are coaxially fixed to the top of the threaded screw rod and the square shaft respectively, and gear one is meshed with gear two.

[0013] As a further supplement to the present application, the second transmission part includes a second sprocket, a second chain and a second transmission shaft; There are two sprocket wheels, one of which is horizontally rotatably mounted on a fixed block, and a square hole is provided on the sprocket wheel for the square shaft to slide through; The second transmission shaft is vertically rotatably mounted on the cover plate, another second sprocket is coaxially fixed to the top of the second transmission shaft, and the second chain is transmission-connected between the two second sprockets; The lower end portion of the transmission shaft 2 is arranged as a bidirectional threaded section, and the upper end of the upper stripping module is arranged with a thread groove 2 which is threadably matched with the bidirectional threaded section of the transmission shaft 2; through the matching arrangement of gear 1, gear 2, square shaft, sprocket 2, chain 2 and transmission shaft 2, the square shaft can be driven by the threaded screw to rotate, and the rotating square shaft drives the transmission shaft 2 to rotate, and the rotating transmission shaft 2 drives the upper stripping module to reciprocate up and down by utilizing the bidirectional threaded section at its lower end portion, thereby pushing the dry battery shell adhered to the outer side of the punch seat downward, causing the dry battery shell to be relatively displaced with the outer surface of the punch seat, thereby separating from the outer surface of the punch seat, making it convenient for the operator to smoothly remove the dry battery shell.

[0014] As a further supplement to the present application, the height of the fixing frame is not less than the sum of the heights of the three die seats, so that the operator can easily remove the dry cell casing from between the die seat and the punch seat.

[0015] As a further supplement to the present application, the depth of groove one is greater than the thickness of the lower removal module, and the depth of groove two is greater than the thickness of the upper removal module; ensuring that the lower removal module and the upper removal module can be separated from the dry cell housing during the up and down movement.

[0016] As a further supplement to the present application, when the cover plate and the die seat are covered, the upper end surface of the lower stripping module is flush with the inner bottom surface of the die seat, and the lower end surface of the upper stripping module is flush with the bottom surface of the punch seat; The driving mechanism drives the cover plate to separate from the die seat, drives the lower stripping module to move downward, and drives the upper stripping module to move upward, ensuring that the lower stripping module or the upper stripping module is separated from the battery shell at the initial stage of mold opening.

[0017] In summary, through the coordinated arrangement of the driving mechanism, the lower stripping module and the upper stripping module, the driving mechanism can be used to drive the cover plate to move upward to realize mold opening, while driving the lower stripping module and the upper stripping module to move back and forth up and down on the inner sides of groove one and groove two respectively. Therefore, no matter whether the dry battery shell is stuck to the outer side of the punch seat or the inner side of the die seat, the lower stripping module can be used to push the dry battery shell away from the die seat, or the upper stripping module can be used to push the dry battery shell away from the punch seat, thereby realizing automatic demolding, and the demolding action is stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the first embodiment of the present application; Figure 2 This is a schematic cross-sectional structure diagram of a die holder according to the first embodiment of the present application; Figure 3 This is a schematic cross-sectional structure diagram of the punch seat of the first embodiment of the present application; Figure 4 This is a schematic diagram of the three-dimensional structure of the driving mechanism of the first embodiment of the present application; Figure 5 This is a schematic diagram of the three-dimensional structure of the driving mechanism in the first embodiment of the present application with the guide slide bar removed; Figure 6 This is a schematic diagram of the three-dimensional structure of a transmission unit in the first embodiment of the present application; Figure 7 This is a schematic diagram of the three-dimensional structure of the transmission unit 2 of the first embodiment of the present application; Figure 8 This is a schematic diagram of the planar structure of the raw material in a solidified state in the first embodiment of the present application; Fig. 9 This is a schematic diagram of the planar structure of the first embodiment of the present application when the dry cell housing is adhered to the inner side of the die seat when the mold is opened; Fig.10This is a schematic diagram of the planar structure of the first embodiment of the present application in which the dry cell housing is adhered to the outer side of the punch seat when the mold is opened.

[0019] Description of the numbers in the figure: 1. Fixing frame; 2. Die seat; 21. Groove 1; 3. Punch seat; 31. Groove 2; 4. Cover plate; 41. Fixing block; 411. Threaded hole; 412. Slide hole; 42. Injection port; 5. Driving motor; 6. Threaded screw; 7. Guide slide bar; 8. Sprocket 1; 9. Chain 1; 10. Drive shaft 1; 11. Lower stripping module; 111. Threaded groove 1; 12. Square shaft; 13. Gear 1; 14. Gear 2; 15. Sprocket 2; 16. Chain 2; 17. Drive shaft 2; 18. Upper stripping module; 181. Threaded groove 2. DETAILED DESCRIPTION

[0020] An implementation method of the present application is described in detail below with reference to the accompanying drawings.

[0021] The first implementation method: The present invention provides a special mold for a molded zinc-manganese dry cell. Figure 1 , including a fixing frame 1, a die seat 2 is installed at the inner bottom end of the fixing frame 1, a punch seat 3 is arranged on the inner side of the die seat 2, a cover plate 4 is fixed to the top of the punch seat 3, wherein the gap between the die seat 2, the punch seat 3 and the cover plate 4 is a mold cavity for forming a dry cell shell.

[0022] The fixing frame 1 is provided with a driving mechanism, which is connected to the cover plate 4 to drive the cover plate 4 to move vertically up and down. Figure 2 As shown, the inner bottom end of the die seat 2 is provided with a groove 21, and the inner side of the groove 21 is vertically slidably installed with a lower stripping module 11; Figure 3 As shown, a second groove 31 is provided at the bottom end of the punch seat 3 , and an upper and lower stripping module 18 is vertically slidably installed inside the second groove 31 .

[0023] The lower stripping module 11 and the upper stripping module 18 are both connected to the driving mechanism. Through the coordinated arrangement of the driving mechanism, the lower stripping module 11 and the upper stripping module 18, the driving mechanism can be used to drive the cover plate 4 to move upward to realize mold opening, while driving the lower stripping module 11 and the upper stripping module 18 to reciprocate up and down on the inner sides of the groove 1 21 and the groove 2 31 respectively. Therefore, no matter whether the dry battery shell is adhered to the outer side of the punch seat 3 or the inner side of the die seat 2, the lower stripping module 11 can be used to push the dry battery shell away from the die seat 2, or the upper stripping module 18 can be used to push the dry battery shell away from the punch seat 3, so as to realize automatic demolding, and the demolding action is stable and reliable.

[0024] Among them, Figure 4It is shown that the driving mechanism includes a driving motor 5, a threaded screw 6, a transmission unit 1 and a transmission unit 2. The driving motor 5 is installed on the fixed frame 1, and the threaded screw 6 is vertically rotatably installed on the inner side of the fixed frame 1, and one end of the threaded screw 6 is coaxially fixed with the output shaft of the driving motor 5. A fixing block 41 is fixed to the side end of the cover plate 4, and a threaded hole 411 is provided on the fixing block 41 for the threaded screw 6 to pass through. The transmission unit 1 is connected between the threaded screw 6 and the lower stripping module 11, and the transmission unit 2 is connected between the threaded screw 6 and the upper stripping module 18; the driving motor 5 drives the threaded screw 6 to rotate, and the rotating threaded screw 6 drives the cover plate 4 to move up and down with the punch seat 3, the punch seat 3 moves up to open the mold, and the punch seat 3 moves down to close the mold.

[0025] like Figure 3 and Figure 4 It is shown that a guide structure is arranged between the fixed frame 1 and the fixed block 41, and the guide structure includes a guide slide rod 7, which is vertically fixed to the inner side of the fixed frame 1, and a slide hole 412 is arranged on the fixed block 41 for the guide slide rod 7 to slide through; the sliding cooperation between the guide slide rod 7 and the slide hole 412 can ensure that the cover plate 4 can move up and down stably with the punch seat 3 under the driving action of the threaded screw 6.

[0026] like Figure 5 and Figure 6 As shown, the transmission unit 1 includes a sprocket 8, a chain 9 and a transmission shaft 10. Two sprockets 8 are provided. The two sprockets 8 are coaxially fixed to the bottom ends of the threaded screw 6 and the bottom ends of the transmission shaft 10 respectively. The chain 9 is transmission-connected between the two sprockets 8. The lower end of the transmission shaft 10 is rotatably mounted on the fixed frame 1. The upper end portion of the transmission shaft 10 is provided as a bidirectional threaded section. The lower end of the lower stripping module 11 is provided with a thread groove 111 that is threadably matched with the bidirectional threaded section of the transmission shaft 10.

[0027] Through the coordinated arrangement of the sprocket 8, the chain 9 and the transmission shaft 10, the transmission shaft 10 can be driven by the threaded screw 6 to rotate, and the rotating transmission shaft 10 drives the lower stripping module 11 to reciprocate up and down by the bidirectional threaded section at its upper end, thereby pushing the dry battery shell adhered to the inner side of the die seat 2 upward, so that the dry battery shell and the inner surface of the die seat 2 are relatively displaced, thereby being separated from the inner surface of the die seat 2, making it convenient for the operator to smoothly remove the dry battery shell.

[0028] like Figure 5 and Figure 7As shown, the transmission unit 2 includes a square shaft 12, a first transmission part and a second transmission part. The square shaft 12 is vertically rotatably mounted on the inner side of the fixed frame 1 and is connected to the threaded screw 6 through the first transmission part. The second transmission part is connected between the square shaft 12 and the upper stripping module 18. The first transmission part includes a gear 13 and a gear 2 14. The gear 13 and the gear 2 14 are coaxially fixed to the top of the threaded screw 6 and the square shaft 12, respectively. The gear 13 is meshed with the gear 2 14. The second transmission part includes a sprocket 2 15, a chain 2 16 and a transmission shaft 2 17. There are two sprocket wheels 15, one of which is horizontally rotatably mounted on the fixed block 41, and the sprocket wheel 15 is provided with a square hole for the square shaft 12 to slide through. The transmission shaft 17 is vertically rotatably mounted on the cover plate 4, and the other sprocket wheel 15 is coaxially fixed to the top of the transmission shaft 17. The chain 16 is transmission-connected between the two sprocket wheels 15. The lower end portion of the transmission shaft 17 is provided with a bidirectional threaded section, and the upper end of the upper and lower stripping module 18 is provided with a thread groove 181 threadably matched with the bidirectional threaded section of the transmission shaft 17.

[0029] Through the coordinated arrangement of gear 1 13, gear 2 14, square shaft 12, sprocket 2 15, chain 2 16 and transmission shaft 2 17, the square shaft 12 can be driven by the threaded screw 6 to rotate, and the rotating square shaft 12 drives the transmission shaft 2 17 to rotate. The rotating transmission shaft 2 17 drives the upper stripping module 18 to move up and down by the bidirectional threaded section at its lower end, thereby pushing the dry battery shell adhered to the outer side of the punch seat 3 downward, so that the dry battery shell and the outer surface of the punch seat 3 are relatively displaced, thereby being separated from the outer surface of the punch seat 3, making it convenient for the operator to smoothly remove the dry battery shell.

[0030] like Figure 8 As shown, the height of the fixing frame 1 is not less than the sum of the heights of the three die seats 2 , which facilitates the operator to take out the dry cell casing from between the die seat 2 and the punch seat 3 .

[0031] like Figure 2 and Figure 3 As shown, the depth of groove 1 21 is greater than the thickness of the lower stripping module 11, and the depth of groove 2 31 is greater than the thickness of the upper stripping module 18, ensuring that the lower stripping module 11 and the upper stripping module 18 can be separated from the dry cell housing during the up and down movement.

[0032] Among them, when the cover plate 4 is in the state of covering the die seat 2, the upper end surface of the lower stripping module 11 is flush with the inner bottom surface of the die seat 2, and the lower end surface of the upper stripping module 18 is flush with the bottom surface of the punch seat 3. The driving mechanism drives the cover plate 4 to separate from the die seat 2 while driving the lower stripping module 11 to move downward and the upper stripping module 18 to move upward, ensuring that the lower stripping module 11 or the upper stripping module 18 is separated from the dry cell shell at the initial stage of mold opening.

[0033] Working principle: Initially, the male mold base 3 and the female mold base 2 are in a mold-clamping state. At this time, the upper end surface of the lower stripping module 11 is flush with the inner bottom surface of the female mold base 2, and the lower end surface of the upper stripping module 18 is flush with the bottom surface of the male mold base 3. The shell material is injected into the dry cell shell mold cavity formed between the female mold base 2, the male mold base 3 and the cover plate 4 through the injection port 42. Figure 8 As shown, after the raw material is solidified and formed, the driving motor 5 is used to drive the threaded screw 6 to rotate, and the rotating threaded screw 6 drives the cover plate 4 to move the punch seat 3 away from the mold; Under the driving action of the threaded screw 6, the transmission shaft 10 is rotated by the cooperation of the sprocket 18, the chain 19 and the transmission shaft 10, and the rotating transmission shaft 10 drives the lower stripping module 11 to reciprocate up and down by using the bidirectional threaded section at its upper end; at the same time, the square shaft 12 is rotated by the cooperation of the gear 13, the gear 2 14, the square shaft 12, the sprocket 2 15, the chain 2 16 and the transmission shaft 2 17, and the rotating square shaft 12 drives the transmission shaft 2 17 to rotate, and the rotating transmission shaft 2 17 drives the upper stripping module 18 to reciprocate up and down by using the bidirectional threaded section at its lower end; A number of battery shells are glued to the inner side of the die holder 2, such as Fig. 9 As shown, at this time, the lower stripping module 11 that reciprocates up and down can be used to push the dry battery shell adhered to the inner side of the die seat 2 upward, so that the dry battery shell and the inner surface of the die seat 2 are relatively displaced, thereby separating from the inner surface of the die seat 2, making it convenient for operators to smoothly remove the dry battery shell; A number of battery shells are glued to the outside of the punch seat 3, such as Fig.10 As shown, at this time, the upper stripping module 18 can be reciprocated up and down to push the dry battery shell adhered to the outer side of the punch seat 3 downward, so that the dry battery shell and the outer surface of the punch seat 3 are relatively displaced, thereby separating from the outer surface of the punch seat 3, making it convenient for the operator to smoothly remove the dry battery shell; Therefore, no matter the dry cell shell sticks to the outside of the punch seat 3 or the inside of the die seat 2, the lower stripping module 11 can be used to push the dry cell shell away from the die seat 2, or the upper stripping module 18 can be used to push the dry cell shell away from the punch seat 3, so as to realize automatic demoulding, and the demoulding action is stable and reliable.

[0034] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A special mold for a plastic case zinc-manganese dry battery, characterized in that: include: A fixing frame (1), wherein a die seat (2) is mounted on the inner bottom end of the fixing frame (1), a punch seat (3) is arranged on the inner side of the die seat (2), a cover plate (4) is fixed on the top end of the punch seat (3), and a gap between the die seat (2), the punch seat (3) and the cover plate (4) is a mold cavity for forming a dry cell shell; a driving mechanism is mounted on the fixing frame (1), and the driving mechanism is connected to the cover plate (4) to drive the cover plate (4) to move vertically up and down; a groove (21) is arranged on the inner bottom end of the die seat (2) A lower stripping module (11) is vertically slidably mounted on the inner side of the groove one (21); a groove two (31) is provided at the bottom end of the punch seat (3), and an upper stripping module (18) is vertically slidably mounted on the inner side of the groove two (31); the lower stripping module (11) and the upper stripping module (18) are both connected to the driving mechanism, and the driving mechanism drives the cover plate (4) to move upward while driving the lower stripping module (11) and the upper stripping module (18) to reciprocate up and down on the inner sides of the groove one (21) and the groove two (31), respectively.

2. The special mold for a molded zinc-manganese dry battery according to claim 1, characterized in that: The driving mechanism comprises a driving motor (5), a threaded screw (6), a transmission unit 1 and a transmission unit 2; The drive motor (5) is mounted on the fixing frame (1); the threaded screw (6) is mounted on the inner side of the fixing frame (1) for vertical rotation, and one end of the threaded screw (6) is coaxially fixed to the output shaft of the drive motor (5); a fixing block (41) is fixed to the side end of the cover plate (4); a threaded hole (411) is provided on the fixing block (41) for the threaded screw (6) to pass through; a guide structure is provided between the fixing frame (1) and the fixing block (41); the transmission unit 1 is connected between the threaded screw (6) and the lower stripping module (11); and the transmission unit 2 is connected between the threaded screw (6) and the upper stripping module (18).

3. The special mold for a molded zinc-manganese dry battery according to claim 2, characterized in that: The guide structure comprises a guide slide bar (7), the guide slide bar (7) being vertically fixed to the inner side of the fixing frame (1), and the fixing block (41) being provided with a slide hole (412) for the guide slide bar (7) to slide through.

4. The special mold for a molded zinc-manganese dry battery according to claim 2, characterized in that: The transmission unit 1 comprises a sprocket 1 (8), a chain 1 (9) and a transmission shaft 1 (10); two sprockets 1 (8) are provided, and the two sprockets 1 (8) are coaxially fixed to the bottom ends of the threaded screw rod (6) and the bottom ends of the transmission shaft 1 (10), respectively, and the chain 1 (9) is transmission-connected between the two sprockets 1 (8); the lower end of the transmission shaft 1 (10) is rotatably mounted on the fixed frame (1), the upper end portion of the transmission shaft 1 (10) is provided as a bidirectional threaded section, and the lower end of the lower stripping module (11) is provided with a thread groove 1 (111) threadably matched with the bidirectional threaded section of the transmission shaft 1 (10).

5. The special mold for a molded zinc-manganese dry battery according to claim 2, characterized in that: The second transmission unit comprises a square shaft (12), a first transmission part and a second transmission part; the square shaft (12) is vertically rotatably mounted on the inner side of the fixing frame (1) and is connected to the threaded screw (6) via the first transmission part; the second transmission part is connected between the square shaft (12) and the upper and lower stripping modules (18).

6. The special mold for a molded zinc-manganese dry battery according to claim 5, characterized in that: The first transmission part comprises gear one (13) and gear two (14); the gear one (13) and gear two (14) are coaxially fixed to the top ends of the threaded screw (6) and the square shaft (12), respectively, and the gear one (13) is meshed with the gear two (14).

7. The special mold for a molded zinc-manganese dry battery according to claim 5, characterized in that: The second transmission part comprises a second sprocket (15), a second chain (16) and a second transmission shaft (17); two second sprockets (15) are provided, one of which is horizontally rotatably mounted on the fixed block (41), and the second sprocket (15) is provided with a square hole for the square shaft (12) to slide through; the second transmission shaft (17) is vertically rotatably mounted on the cover plate (4), the other second sprocket (15) is coaxially fixed to the top of the second transmission shaft (17), and the second chain (16) is transmission-connected between the two second sprockets (15); the lower end portion of the second transmission shaft (17) is provided with a bidirectional threaded section, and the upper end of the upper stripping module (18) is provided with a second threaded groove (181) threadably matched with the bidirectional threaded section of the second transmission shaft (17).

8. The special mold for a molded zinc-manganese dry battery according to claim 1, characterized in that: The height of the fixing frame (1) is not less than the sum of the heights of the three die seats (2).

9. The special mold for a molded zinc-manganese dry battery according to claim 1, characterized in that: The depth of the groove one (21) is greater than the thickness of the lower stripping module (11), and the depth of the groove two (31) is greater than the thickness of the upper stripping module (18).

10. The special mold for a molded zinc-manganese dry battery according to claim 1, characterized in that: When the cover plate (4) and the die seat (2) are in a state of covering each other, the upper end surface of the lower stripping module (11) is flush with the inner bottom surface of the die seat (2), and the lower end surface of the upper stripping module (18) is flush with the bottom surface of the punch seat (3); while the driving mechanism drives the cover plate (4) to separate from the die seat (2), it drives the lower stripping module (11) to move downward and drives the upper stripping module (18) to move upward.

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