CN217788447U - Mold for manufacturing nickel-hydrogen battery negative plate by dry method - Google Patents

Abstract

The utility model discloses a mould that is used for dry process preparation nickel-hydrogen battery negative pole piece relates to nickel-hydrogen battery technical field, include: the plane fixed connection plate is provided with a through hole; the fixed connecting plate blocks are oppositely arranged on the left side and the right side of the hole along the height direction; the fixing module and the limiting module are oppositely arranged on the front side and the rear side of the orifice along the height direction, and the lower ends of the fixing module and the limiting module are obliquely arranged inwards to form a gap for the battery cathode base band to pass through; in the same direction as the band pulley subassembly, including in the same direction as the band pulley, rotate along the horizontal direction in the same direction as the band pulley and set up on the plane fixed connection plate, and be located the top in clearance in the same direction as the band pulley. The beneficial effects of the utility model are that through the clearance of the perpendicular composition module of powdering of the circumference of following the rotation of band pulley, make battery negative pole baseband more smooth and easy, level and indeformable through the composition module of powdering, can avoid blocking disconnected battery negative pole baseband improvement production efficiency effectively.

Description

Mold for manufacturing nickel-hydrogen battery negative plate by dry method

Technical Field

The utility model relates to a nickel-hydrogen battery technical field, concretely relates to a mould that is used for dry process preparation nickel-hydrogen battery negative pole piece.

Background

At present, two production processes are used for producing the nickel-metal hydride battery negative plate, wherein the first process adopts a steel belt wet-method slurry drawing process, and the second process adopts a dry-method copper mesh direct powdering and sheet pulling process. The battery manufacturers respectively adopt different production processes according to the types of the battery models.

In the prior art, in the continuous production process of manufacturing the nickel-hydrogen battery negative plate by using the dry method, a die is usually used for powdering a battery negative base band (copper mesh), but in the powdering process, the battery negative base band (copper mesh) is easily broken, the powdering amount of alloy powder on the base band in the sheet pulling process is easily fluctuated, and the width and thickness consistency of the negative plate in the sheet pulling process is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to at least solve one of the technical problems existing in the prior art, and provide a mould for dry method manufacture of nickel-hydrogen battery negative pole piece.

The technical solution of the utility model is as follows:

a mould for manufacturing a nickel-hydrogen battery negative plate by a dry method comprises the following components:

the plane fixing connection plate block is provided with a through hole in the middle;

the side face fixed connection plate block is arranged below the plane fixed connection plate block, and the side face fixed connection plate block is oppositely arranged at the left side and the right side of the hole along the height direction;

the upper powder combined module is arranged below the plane fixed connection plate and comprises a fixed module and a limiting module, the fixed module and the limiting module are oppositely arranged on the front side and the rear side of the orifice along the height direction, and the lower ends of the fixed module and the limiting module are both arranged in an inwards inclined manner to form a gap for the battery cathode base band to pass through;

the belt wheel assembly is arranged above the plane fixedly connected plate and comprises a belt wheel, the belt wheel is arranged on the plane fixedly connected plate in a rotating mode along the horizontal direction, and the belt wheel is located above the gap.

Preferably, the method further comprises the following steps:

set up along the direction of height limiting baffle subassembly in the orifice, limiting baffle subassembly includes along direction of height's first limiting baffle and second limiting baffle, be provided with the guide hole that a power supply battery negative pole piece baseband passed between first limiting baffle and the second limiting baffle, the guide hole is located directly over the clearance, be located directly over the guide hole vertical direction along the circumference of band pulley.

Preferably, first limit baffle and second limit baffle all are the shape of falling L, first limit baffle and second limit baffle all include horizontal segment and vertical section, the horizontal segment range upon range of setting of first limit baffle is on the horizontal segment of second limit baffle, the vertical section of first limit baffle sets up with the vertical section interval of second limit baffle, the guide hole sets up on first limit baffle's horizontal segment, and the guide hole is located between first limit baffle's the vertical section and the vertical section of second limit baffle.

Preferably, the opposite side walls of the side surface fixed connection plate are provided with symmetrical limiting clamping grooves, and the upper ends of the limiting clamping grooves penetrate through the plane fixed connection plate;

the limiting baffle assembly further comprises a nut and a limiting screw which are matched, the limiting screw is arranged on the plane fixed connection plate block along the height direction, the horizontal sections of the first limiting baffle and the second limiting baffle are provided with corresponding screw holes, the lower ends of the first limiting baffle and the second limiting baffle are arranged in the limiting clamping grooves, and the upper ends of the first limiting baffle and the second limiting baffle are arranged on the limiting screw through the matching of the screw holes, the limiting screw and the nut.

Preferably, the fixing module comprises a first wedge-shaped module and a second wedge-shaped module, and the first wedge-shaped module and the second wedge-shaped module are in mortise-tenon connection;

the limiting module comprises a third wedge-shaped module and a fourth wedge-shaped module, and the third wedge-shaped module and the fourth wedge-shaped module are in mortise-tenon joint;

the first wedge-shaped module and the third wedge-shaped module are both arranged in an inward inclined mode, and the gap is formed between the second wedge-shaped module and the fourth wedge-shaped module.

Preferably, the first wedge-shaped module and the third wedge-shaped module are both provided with mounting screw holes, the side face fixed connection plate is provided with limiting screw holes, and the first wedge-shaped module and the third wedge-shaped module are respectively mounted on the side face fixed connection plate through the screw rod in a matched manner with the mounting screw holes and the limiting screw holes.

Preferably, the method further comprises the following steps:

and the positioning block is arranged in the gap along the height direction.

Preferably, the positioning blocks are in an inverted-L shape, the number of the positioning blocks is two, and the two positioning blocks are respectively arranged at two ends of the second wedge-shaped module.

Preferably, the belt following wheel assembly further comprises a support connecting plate and belt following wheel supports symmetrically arranged at two ends of the support connecting plate, one end of each belt following wheel support is connected with the support connecting plate, symmetrical grooves are formed in the other end of each belt following wheel support, and the belt following wheels are arranged in the grooves and can rotate relative to the grooves.

Preferably, still include the gag lever post and set up the nut on the gag lever post, the gag lever post runs through along the direction of height and sets up around plane fixed connection plate, the lower extreme of gag lever post is used for setting up on mounting platform.

The utility model discloses one of following beneficial effect has at least:

1. the utility model discloses a setting up the powdering combination module auxiliary battery negative pole baseband powdering in the same direction as band pulley below to through in the middle of the perpendicular clearance of powdering combination module in the same direction as the rotatory circumference of band pulley, make battery negative pole baseband more smooth and easy, level and indeformable through the powdering combination module, can avoid blocking disconnected battery negative pole baseband improvement production efficiency effectively. The utility model discloses a go up whitewashed composite module and all can change alone, save the material cost, save maintenance duration, improve production efficiency.

2. The utility model discloses a set up the limit baffle subassembly in the drill way, set up the limit baffle subassembly in the top in the clearance that the last powder composite module formed promptly, pass perpendicularly through the guide hole cooperation battery negative pole piece baseband among the limit baffle subassembly to adjust limit baffle's position from top to bottom through the limit screw knob, can adjust battery negative pole piece baseband and the contact surface of alloy powder more accurately and control the volume of applying powder.

3. The utility model discloses a set up the locating piece in the clearance that the last powder composite module formed, the width in the clearance that the thickness location powder composite module through the locating piece formed to the width of adaptation battery negative pole baseband, thereby can avoid leaking alloy powder and off tracking effectively, more accurate stable uniformity who ensures battery negative pole piece thickness and width.

4. The utility model discloses set up the gag lever post all around at plane fixed connection plate, through setting up the gag lever post lower extreme on mounting platform, and use with the running roller mechanism cooperation that is located the gag lever post bottom, adjust the safe distance that mould and running roller contacted through adjusting the gag lever post from top to bottom more accurately, prevent that the mould from scraping colored running roller plain noodles and damaging the mould, also enable the mould and keep the level.

Drawings

FIG. 1 is a schematic side view of the preferred embodiment of the present invention;

fig. 2 is a schematic top view of the preferred embodiment of the present invention;

fig. 3 is a schematic top view of a partial structure of the preferred embodiment of the present invention;

fig. 4 is a rear view schematic diagram of the preferred embodiment of the present invention;

fig. 5 is a rear view partial structure diagram of the preferred embodiment of the present invention;

FIG. 6 is a schematic side view of the powdering combination module according to the preferred embodiment of the present invention;

FIG. 7 is a schematic top view of the powdering combination module according to the preferred embodiment of the present invention;

fig. 8 is a schematic top view of a stop baffle assembly according to a preferred embodiment of the present invention;

fig. 9 is a side view schematic diagram of a limit stop assembly according to a preferred embodiment of the present invention;

fig. 10 is a front view of the assembly of the limit stop of the preferred embodiment of the present invention;

description of reference numerals:

1. the plane is fixedly connected with the plate; 11. an orifice;

2. the side surface is fixedly connected with the plate; 21. a limiting screw hole; 22. a limiting clamping groove;

3. powdering the combined module; 31. a fixed module; 311. a first wedge module; 312. a second wedge module; 32. a limiting module; 321. a third wedge module; 322. a fourth wedge module; 33. a gap; 34 matching with the screw hole; 35. prying a groove;

4. a compliant wheel assembly; 41. the bracket is connected with the plate; 42. a compliant wheel support; 43. a groove; 44. a forward belt wheel;

5. a limiting rod;

6. a screw;

7. a limiting baffle plate component; 71. a first limit baffle; 72. a second limit baffle; 73. a nut; 74. a limit screw; 75. a guide hole;

9. and (5) positioning the blocks.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments, but the present invention is not limited to the following embodiments.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

As shown in fig. 1 to 10, the present embodiment provides a mold for dry-process manufacturing of a nickel-metal hydride battery negative electrode sheet, which is used in a continuous production process of dry-process manufacturing of a nickel-metal hydride battery negative electrode sheet, so as to solve technical problems in the prior art that a copper mesh of a battery negative electrode base band is easily broken, a powdering amount of alloy powder on the base band is easily fluctuated in a sheet pulling process, and consistency of width and thickness of the negative electrode sheet is poor in the sheet pulling process.

Referring to fig. 1 to 10, the negative plate for the dry-process nickel-metal hydride battery manufacturing of the embodiment includes a mold plane fixed connection plate 1, a side fixed connection plate 2, a powdering combined module 3, a forward belt wheel assembly 4, a limit baffle assembly 7, a positioning block 9 and a limiting rod 5, and has the following specific structure:

the mould plane fixed connection plate 1 is arranged in a horizontal direction, and the middle position of the plane fixed connection plate 1 is provided with a through hole 11, namely a hole dug out in the middle position of the plane fixed connection plate 1 for penetrating, in the embodiment, the hole 11 is square, more specifically, rectangular.

The side fixed connection plate 2 is arranged on the bottom surface of the plane fixed connection plate 1, the number of the side fixed connection plate 2 is two, the two side fixed connection plates 2 are oppositely arranged on the bottom surface of the plane fixed connection plate 1 along the height direction, and the two side fixed connection plates 2 are oppositely arranged on the left side and the right side of the hole 11.

Go up powder composite module 3 and set up the bottom surface of plane fixed connection plate 1, it includes fixed module 31 and spacing module 32 to go up powder composite module, the module includes that fixed module 31 and spacing module 32 set up relatively on plane fixed connection plate 1 along the direction of height, and fixed module 31 and spacing module 32 set up both sides around 11 drill way relatively, the both sides of fixed module 31 and spacing module 32 are connected with side fixed connection plate 2 respectively, and the equal leanin setting of lower extreme of fixed module 31 and spacing module 32 and form a clearance 33 that supplies battery negative pole baseband to pass, particularly, fixed module 31 and spacing module 32 and two side fixed connection plate 2 form the structure similar to the funnel jointly, form clearance 33 between the lower extreme of fixed module 31 and spacing module 32, the length and the width and the battery negative pole baseband looks adaptation of clearance 33, thereby can supply battery negative pole baseband.

As shown in fig. 6 and 7, in the present embodiment, the fixing module 31 includes a first wedge module 311 and a second wedge module 312, and the first wedge module 311 and the second wedge module 312 are mortise-tenon connected; the limiting module 32 comprises a third wedge-shaped module 321 and a fourth wedge-shaped module 322, and the third wedge-shaped module 321 is in mortise-tenon joint with the fourth wedge-shaped module 322; the first wedge-shaped block 311 and the third wedge-shaped block 321 are both arranged obliquely inwards to form a funnel-like structure, and the gap 33 is formed between the second wedge-shaped block 312 and the fourth wedge-shaped block 322. The side walls of the first wedge-shaped module 311 and the third wedge-shaped module 321 are provided with mounting screw holes 34, the side surface fixed connection plate 2 is provided with limiting screw holes 21, and the first wedge-shaped module 311 and the third wedge-shaped module 321 are respectively matched with the mounting screw holes 34 and the limiting screw holes 21 through screws 6 and are mounted on the side surface fixed connection plate 2. The first wedge module 311 and the third wedge module 321 also have a pry groove 35 at the top. Through installation screw 34 and sled groove 35, make things convenient for the dismouting of fixed module 31 and spacing module 32 to whitewashed composite module 3 all can be changed alone, practices thrift the cost.

Set up in the same direction as belt pulley subassembly 4 plane fixed connection plate 1 top, include bracket connection plate 41 in the same direction as belt pulley subassembly 4, in the same direction as belt pulley support 42 and in the same direction as belt pulley 44, in the same direction as belt pulley 44 along the horizontal direction rotation setting be in on the plane fixed connection plate 1, and in the same direction as belt pulley 44 is located the top in clearance 33. Specifically, leg joint plate 41 sets up on mould plane fixed connection plate 1, sets up at leg joint plate 41 both ends along band pulley support 42 symmetry, be connected with leg joint plate 41 along band pulley support 42's one end, the other end is provided with the recess 43 of symmetry, set up at recess 43 and can be rotatory relatively recess 43 along band pulley 44, and lie in the clearance 33 vertical direction directly over along the circumference of band pulley 44 for battery negative pole baseband is more smooth and easy, level and indeformable through last powder composite module, can avoid blocking disconnected battery negative pole baseband improvement production efficiency effectively.

Limiting baffle subassembly 7 sets up along direction of height in the drill way 11, limiting baffle subassembly 7 includes along direction of height's first limiting baffle 71 and second limiting baffle 72, be provided with a guide hole 75 that supplies battery negative pole piece baseband to pass between first limiting baffle 71 and the second limiting baffle 72, in this embodiment, guide hole 75 is rectangle, the length and the width of guide hole 75 and the length and the width looks adaptation of battery negative pole baseband. The guide hole 75 is located directly above the gap 33. The circumference of the following wheel 44 is located right above the vertical direction of the guide hole 75, i.e. the circumference of the following wheel 44 rotating is in the same line with the gap 33 between the rectangular guide hole 75 of the limit stop assembly 7, the fixed module 31 and the limit moving module 32 in the vertical direction, and all of them are fixedly connected with the middle position of the plate block 1 in the vertical plane.

Specifically, as shown in fig. 8 to 10, the first limiting baffle 71 and the second limiting baffle 72 are both in an inverted L shape, the first limiting baffle 71 and the second limiting baffle 72 both include a horizontal section and a vertical section, the horizontal section of the first limiting baffle 71 is stacked on the horizontal section of the second limiting baffle 72, the vertical section of the first limiting baffle 71 and the vertical section of the second limiting baffle 72 are arranged at an interval, the guide hole 75 is arranged on the horizontal section of the first limiting baffle 71, the guide hole 75 is located between the vertical section of the first limiting baffle 71 and the vertical section of the second limiting baffle 72, the limiting baffle assembly 7 further includes a nut 73 and a limiting screw 74, the limiting screw 74 is arranged on the plate 1 along the height direction, and the horizontal sections of the first limiting baffle 71 and the second limiting baffle 72 are provided with corresponding screw holes. As shown in fig. 3, the opposite side walls of the side fixed connection plate 2 are provided with symmetrical limiting slots 22, and the upper ends of the limiting slots 22 penetrate through the plane fixed connection plate 1. The lower ends of the first limiting baffle 71 and the second limiting baffle 72 are arranged in the limiting clamping groove 22, and the upper ends of the first limiting baffle 71 and the second limiting baffle 72 are arranged on the limiting screw 74 through the matching of screw holes, the limiting screw 74 and the nut 73. Through set up the limit baffle subassembly in the drill way, set up the limit baffle subassembly immediately above the clearance that the last powder combination module formed promptly, pass perpendicularly through the guide hole cooperation battery negative pole piece baseband in the limit baffle subassembly to adjust limit baffle's position from top to bottom through the stop screw knob, can adjust battery negative pole piece baseband and the contact surface of alloy powder more accurately and control the powder loading volume.

As shown in fig. 6 to 7, the positioning block 9 is disposed in the gap 33 in the height direction. Specifically, the positioning blocks 9 are in an inverted L shape, the number of the positioning blocks 9 is two, and the two positioning blocks 9 are respectively disposed at two ends of the second wedge module 312. Through setting up locating piece 9 in the clearance 33 that the last powder assembling module formed, the width of clearance 33 that the last powder assembling module formed is fixed a position through the thickness of locating piece 9 to make clearance 33 adapt to the width of battery negative pole baseband, thereby can avoid leaking alloy powder and off tracking effectively, more accurately ensure the stable uniformity of battery negative pole piece thickness and width.

As shown in fig. 1 and 4, the limiting rod 5 runs through the plane fixed connection plate 1 along the height direction, the limiting rod 5 is provided with a nut, the lower end of the limiting rod 5 runs through the plane fixed connection plate 1, the lower end of the limiting rod is arranged on the mounting platform and is matched with a roller mechanism (not shown in the figure) arranged at the bottom of the limiting rod, the safety distance between the die and the roller can be more accurately adjusted by adjusting the limiting rod up and down, the smooth surface of the roller is prevented from being scratched by the die, the die is prevented from being damaged, and the die can be kept horizontal.

In this embodiment, a mold for manufacturing a negative electrode plate of a nickel-metal hydride battery by a dry method is made of a stainless steel material.

The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.

Claims (10)

1. A mould for manufacturing a nickel-hydrogen battery negative plate by a dry method is characterized by comprising the following steps:

the plane fixing and connecting plate block (1) is provided with a through hole (11) at the middle position of the plane fixing and connecting plate block (1);

the side face fixed connecting plate block (2) is arranged below the plane fixed connecting plate block (1), and the side face fixed connecting plate block (2) is oppositely arranged at the left side and the right side of the orifice (11) along the height direction;

the powder feeding combined module (3) is arranged below the plane fixed connection plate (1), the powder feeding combined module comprises a fixed module (31) and a limiting module (32), the fixed module (31) and the limiting module (32) are oppositely arranged on the front side and the rear side of the orifice (11) along the height direction, and the lower ends of the fixed module (31) and the limiting module (32) are both arranged in an inwards inclined manner to form a gap (33) for a battery cathode base band to pass through;

the belt wheel assembly (4) is arranged above the plane fixed connection plate (1), the belt wheel assembly (4) comprises a belt wheel (44), the belt wheel (44) is arranged on the plane fixed connection plate (1) in a rotating mode along the horizontal direction, and the belt wheel (44) is located above the gap (33).

2. The mold for dry-process production of the negative electrode plate of the nickel-metal hydride battery according to claim 1, further comprising:

set up along the direction of height limiting baffle subassembly (7) in drill way (11), limiting baffle subassembly (7) include along direction of height first limiting baffle (71) and second limiting baffle (72), be provided with a guide hole (75) that supply battery negative pole piece baseband to pass between first limiting baffle (71) and second limiting baffle (72), guide hole (75) are located directly over clearance (33), lie in directly over guide hole (75) vertical direction along the circumference of band pulley (44).

3. The die for manufacturing the negative electrode plate of the nickel-metal hydride battery by the dry method according to claim 2, wherein the first limiting baffle (71) and the second limiting baffle (72) are both in an inverted L shape, the first limiting baffle (71) and the second limiting baffle (72) each comprise a horizontal section and a vertical section, the horizontal sections of the first limiting baffle (71) are stacked on the horizontal section of the second limiting baffle (72), the vertical sections of the first limiting baffle (71) and the vertical sections of the second limiting baffle (72) are spaced, the guide hole (75) is arranged on the horizontal section of the first limiting baffle (71), and the guide hole (75) is located between the vertical section of the first limiting baffle (71) and the vertical section of the second limiting baffle (72).

4. The mold for dry-process manufacturing of the negative electrode plate of the nickel-hydrogen battery according to claim 3,

symmetrical limiting clamping grooves (22) are formed in the opposite side walls of the side surface fixed connecting plate block (2), and the upper ends of the limiting clamping grooves (22) penetrate through the plane fixed connecting plate block (1);

the limiting baffle assembly (7) further comprises a nut (73) and a limiting screw (74) which are matched with each other, the limiting screw (74) is arranged on the plane fixed connection plate block (1) along the height direction, the horizontal sections of the first limiting baffle (71) and the second limiting baffle (72) are provided with corresponding screw holes, the lower ends of the first limiting baffle (71) and the second limiting baffle (72) are arranged in the limiting clamping groove (22), and the upper ends of the first limiting baffle (71) and the second limiting baffle (72) are arranged on the limiting screw (74) through the matching of the screw holes, the limiting screw (74) and the nut (73).

5. The mold for dry-process production of a negative electrode plate of a nickel-metal hydride battery according to claim 1,

the fixing module (31) comprises a first wedge-shaped module (311) and a second wedge-shaped module (312), and the first wedge-shaped module (311) and the second wedge-shaped module (312) are in mortise and tenon connection;

the limiting module (32) comprises a third wedge-shaped module (321) and a fourth wedge-shaped module (322), and the third wedge-shaped module (321) and the fourth wedge-shaped module (322) are in mortise-tenon joint;

the first wedge-shaped module (311) and the third wedge-shaped module (321) are arranged in an inward inclined mode, and the gap (33) is formed between the second wedge-shaped module (312) and the fourth wedge-shaped module (322).

6. The mold for dry-process manufacturing of the nickel-metal hydride battery negative electrode plate according to claim 5, wherein the first wedge-shaped module (311) and the third wedge-shaped module (321) are both provided with mounting screw holes (34), the side surface fixing connection plate (2) is provided with limiting screw holes (21), and the first wedge-shaped module (311) and the third wedge-shaped module (321) are respectively installed on the side surface fixing connection plate (2) through a screw rod (6) in a matching manner with the mounting screw holes (34) and the limiting screw holes (21).

7. The mold for dry-process manufacturing of the negative electrode plate of the nickel-metal hydride battery according to claim 5, further comprising:

a positioning block (9), wherein the positioning block (9) is arranged in the gap (33) along the height direction.

8. The mold for dry-process manufacturing of the nickel-metal hydride battery negative electrode sheet according to claim 7, wherein the positioning blocks (9) are in an inverted L shape, the number of the positioning blocks (9) is two, and the two positioning blocks (9) are respectively arranged at two ends of the second wedge-shaped module (312).

9. The mold for dry-process production of the nickel-metal hydride battery negative electrode plate according to claim 5, wherein the compliant wheel assembly (4) further comprises a support connecting plate (41) and compliant wheel supports (42) symmetrically arranged at two ends of the support connecting plate (41), one end of each compliant wheel support (42) is connected with the support connecting plate (41), the other end of each compliant wheel support is provided with symmetrical grooves (43), and the compliant wheels (44) are arranged in the grooves (43) and can rotate relative to the grooves (43).

10. The die for manufacturing the negative plate of the nickel-metal hydride battery by the dry method according to claim 1, further comprising a limiting rod (5) and a nut arranged on the limiting rod (5), wherein the limiting rod (5) penetrates through the periphery of the planar fixed connection plate (1) along the height direction, and the lower end of the limiting rod (5) is arranged on the mounting platform.

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