CN214254213U

CN214254213U - Keyboard bulk shear foot automatic feeding mechanism

Info

Publication number: CN214254213U
Application number: CN202021705349.2U
Authority: CN
Inventors: 何怀清
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2021-09-21
Anticipated expiration: 2030-08-17

Abstract

The utility model discloses a keyboard scissors foot automatic feeding mechanism in bulk, including the vibration dish device that is used for carrying out orderly material loading with scissors foot in bulk, the horizontal pull open device of scissors foot that transversely pulls open the scissors foot is installed to vibration dish device end, the horizontal pull open device of scissors foot one side is installed and is transferred the scissors foot transfer device of arranging good scissors foot to the mould part, the horizontal pull open device of scissors foot includes the guide part that is used for supporting and guide effect, the guide part is installed on one side of scissors foot transfer device, the guide part is installed and is taken out the scissors foot extraction member that the scissors foot in order was wholly taken out, scissors foot extraction member facial make-up is equipped with the part that pulls open that is used for pulling the scissors foot lateral distance, pull open the part facial make-up and be equipped with the left stretching portion that is used for drawing the scissors foot to the left side, pull open the part facial make-up and be equipped with the right stretching part that is used for drawing the scissors foot to the right side, the utility model discloses degree of automation is high, and the packaging efficiency is high.

Description

Keyboard bulk shear foot automatic feeding mechanism

Technical Field

The utility model relates to a keyboard scissors foot equipment technical field, in particular to keyboard scissors foot automatic feeding mechanism in bulk.

Background

The computer keyboard is assembled by mounting scissors and key caps on a keyboard main board with a circuit. The scissors foot is a common part and mainly comprises an inner frame and an outer frame which are mutually crossed and are in rotary pin joint, and the function of the scissors foot is to enable the keycap to have certain elasticity.

In the assembling process of the keyboard, firstly, scissors feet are inserted into corresponding positions of a keyboard main board, and then the keycaps are pressed into the positions. At present, the common practice in the industry is manual assembly, the automation degree is low, the working efficiency is low, time and labor are consumed, and the method is not suitable for modern mechanized production.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned defect among the prior art, provide a keyboard scissors foot automatic feeding mechanism in bulk, this mechanism can carry out automatic arrangement, horizontal sequencing operation to scissors foot in bulk, realizes the once only automatic function of arranging to the rigging die of scissors foot in bulk, the utility model discloses degree of automation is high, and the packaging efficiency is high, has reduced the cost of labor, makes product equipment quality more stable more reliable, has improved the qualification rate of product effectively.

In order to achieve the above object, the utility model provides a keyboard scissors foot automatic feeding mechanism in bulk, including the vibration dish device that is used for carrying out orderly material loading with the scissors foot in bulk, the vibration dish device end is equipped with the scissors foot lateral pulling device that transversely pulls open the scissors foot, scissors foot lateral pulling device one side is equipped with the scissors foot transfer device that transfers the scissors foot that has arranged to the mould part, scissors foot lateral pulling device includes the guide part that is used for supporting and guide effect, the guide part is installed on one side of scissors foot transfer device, the guide part is equipped with the scissors foot taking out part that wholly takes out ordered scissors foot, scissors foot taking out part facial make-up is equipped with the part that pulls open that is used for pulling scissors foot lateral distance, it is equipped with the left stretching part that is used for stretching the scissors foot to the left side to pull the facial make-up part, the pulling component is provided with a right stretching component used for stretching the scissors feet to the right side.

Preferably, the vibration disc device comprises a plurality of vibration discs, scissor slide groove plates, moving baffles, a first air cylinder and linear vibrators, the directions of the scissor feet in bulk are consistent, the tail ends of the vibration discs are provided with the scissor slide groove plates for horizontally transferring the scissor feet in the consistent directions, the scissor slide groove plates are provided with the moving baffles for preventing the scissor feet from overflowing, the moving baffles are provided with the first air cylinder, the first air cylinder drives the moving baffles to prevent the scissor feet in a closed state from overflowing, and the linear vibrators for horizontally moving the scissor feet are arranged at the lower parts of the scissor slide groove plates.

As preferred, the guide part includes first guide bar, second guide bar, third guide bar, fourth guide bar, first linear bearing, second linear bearing, third linear bearing, fourth linear bearing, fixed plate and reciprocates the version, first linear bearing suit is on first guide bar, second linear bearing suit is on the second guide bar, third linear bearing suit is on the third guide bar, fourth linear bearing suit is on the fourth guide bar, first guide bar, second guide bar, third guide bar and fourth guide bar one end are installed on scissors foot transfer device, and the other end is installed on the fixed plate, first linear bearing, second linear bearing, third linear bearing and fourth linear bearing facial make-up are equipped with the version of reciprocating.

As preferred, scissors foot takes out part includes the second cylinder, first mounting panel, pulls open slider, chute board, stripper and frustum, the second cylinder is installed on the fixed plate, reciprocating motion about the first mounting panel of second cylinder drive, first mounting panel is installed on reciprocating the version, it installs and reciprocates the version lower extreme to pull open the slider, it is equipped with the frustum that is used for inserting scissors foot and gets the material to pull open the slider facial make-up, it passes the chute board to pull open the slider, the stripper has still been installed to chute board lower extreme.

Preferably, the pulling part comprises a third cylinder, a transverse adjusting block, a movable top shaft and a sliding groove fixing plate, the sliding groove fixing plate is arranged at the lower end of the up-down moving plate, the third cylinder is arranged on the sliding groove fixing plate, the third cylinder drives the transverse adjusting block to horizontally reciprocate, the transverse adjusting block is provided with the movable top shaft, and the movable top shaft penetrates through the sliding groove plate to drive the pulling slider to horizontally reciprocate in the sliding groove plate.

Preferably, the left stretching part comprises a fourth cylinder, the fourth cylinder is arranged between the first mounting plate and the up-down moving plate, and the fourth cylinder drives the sliding groove fixing plate to stretch leftwards.

Preferably, the right stretching component comprises a fifth cylinder, the fifth cylinder is arranged between the first mounting plate and the up-down moving plate, and the fifth cylinder drives the chute fixing plate to stretch rightwards.

Preferably, the scissor foot transfer device comprises a fixed plate bottom plate, a left guide block, a right guide block, a sliding bottom plate, an assembly mold lower plate, a scissor foot guide plate and a sixth cylinder, wherein the fixed plate bottom plate is arranged on the frame, the left guide block is arranged on the left side of the fixed plate bottom plate, the right guide block is arranged on the right side of the fixed plate bottom plate, the sixth cylinder is fixed on the fixed plate bottom plate, the sliding bottom plate is driven to reciprocate back and forth along the left guide block and the right guide block, the assembly mold lower plate is arranged on the sliding bottom plate, and the scissor foot guide plate is movably arranged on the assembly mold lower plate.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. the utility model discloses utilize vibration dish device to carry out orderly material loading with scissors foot in bulk, realize automatic feeding, automatic arrangement, the packaging efficiency is high, is favorable to having reduced the cost of labor.

2. The utility model discloses utilize the scissors foot to transversely pull open the device and take out the scissors foot from the vibration dish device, place scissors foot transfer device on, then carry out operations such as horizontal distance pull open, automatic arrangement, transverse arrangement with the scissors foot, realize the disposable automatic function of arranging to the assembly jig of scissors foot in bulk.

3. The utility model discloses degree of automation is high, and the packaging efficiency is high, has reduced the cost of labor, makes product packaging quality more stable more reliable, has improved the qualification rate of product effectively.

4. The utility model discloses utilize scissors foot transfer device to deliver to the mould part with the scissors foot of arranging, transfer out the horizontal pull open device of scissors foot, carry out one lower process, realize transporting automatically, practice thrift the equipment time, improve the packaging efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of an automatic feeding mechanism for bulk keyboard scissors provided by the present invention;

fig. 2 is an exploded schematic view of an automatic feeding mechanism for bulk keyboard scissors provided by the present invention;

fig. 3 is an exploded schematic view of a vibrating tray device of an automatic feeding mechanism for bulk keyboard scissors provided by the present invention;

fig. 4 is an exploded schematic view of a scissor leg lateral pulling device of the automatic feeding mechanism for bulk keyboard scissor legs according to the present invention;

fig. 5 is an exploded schematic view of the scissor-leg conveying device of the automatic feeding mechanism for the keyboard bulk scissor-legs according to the present invention.

The figure includes:

1-vibration disc device, 2-scissor transverse pulling device, 3-scissor transfer device, 21-guide component, 22-scissor taking-out component, 23-pulling component, 24-left stretching component, 25-right stretching component, 11-vibration disc, 12-scissor sliding groove plate, 13-moving baffle, 14-first air cylinder, 15-linear vibrator, 211-first guide rod, 212-second guide rod, 213-third guide rod, 214-fourth guide rod, 215-first linear bearing, 216-second linear bearing, 217-third linear bearing, 218-fourth linear bearing, 219-fixing plate, 26-up-down moving plate, 221-second air cylinder, 222-first mounting plate, 223-pulling slider, 224-chute plate, 225-stripper plate, 226-frustum, 231-third cylinder, 232-transverse adjusting block, 233-movable top shaft, 234-chute fixing plate, 241-fourth cylinder, 251-fifth cylinder, 31-fixing plate bottom plate, 32-left side guide block, 33-right side guide block, 34-sliding bottom plate, 35-assembly mold lower plate, 36-scissor guide plate and 37-sixth cylinder.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present embodiment, and it is obvious that the described embodiment is an embodiment of the present invention, not all embodiments. Based on this embodiment in the present invention, all other embodiments obtained by the ordinary skilled person in the art without creative work all belong to the protection scope of the present invention.

Referring to fig. 1 to 5, the present invention provides an automatic feeding mechanism for bulk scissors of keyboard, including a vibrating tray device 1 for orderly feeding bulk scissors, a horizontal scissors pulling device 2 for transversely pulling the scissors, a scissors transferring device 3 for transferring the arranged scissors to a mold part, the horizontal scissors pulling device 2 includes a guiding component 21 for supporting and guiding, the guiding component 21 is installed on one side of the scissors transferring device 3, the guiding component 21 is installed with a scissors taking component 22 for taking out the ordered scissors as a whole, the scissors taking component 22 is installed with a pulling component 23 for pulling the scissors transversely, the pulling component 23 is installed with a left stretching component 24 for stretching the scissors to the left, the pulling part 23 is provided with a right stretching part 25 for stretching the scissor feet to the right.

The automatic keyboard bulk scissor feeding mechanism comprises the following working procedures: the automatic scissors foot feeding process is realized by a vibrating disc device 1, and the vibrating disc device 1 automatically and orderly feeds bulk scissors feet; a scissor-leg removing step of removing the scissor-leg removing member 22 by the scissor-leg removing member 22, wherein the entire ordered scissor legs are removed from the vibration plate device 1 and placed in the scissor-leg transfer device 3; a scissor leg transverse distance pulling process, which is realized by a pulling part 23, wherein the pulling part 23 adjusts the distance between the scissor legs so as to be suitable for assembling with the hook plate; a scissor foot left side stretching process, wherein the process is realized by a left stretching component 24, and the scissor foot is stretched to the left side by the left stretching component 24; a scissor-leg rightward stretching step, wherein a right stretching member 25 is used for stretching the scissor legs rightward by the right stretching member 25; the scissor legs are conveyed to the die process, and the scissor leg conveying device 3 is used for conveying the scissor legs out of the scissor leg transverse pulling device 2 to the die press-fitting process through the scissor leg conveying device 3.

As shown in fig. 3, the vibrating tray device 1 includes a plurality of vibrating trays 11, scissor runner plates 12, moving baffles 13, first air cylinders 14 and linear vibrators 15, the vibrating trays 11 are provided at ends thereof with scissor runner plates 12 for horizontally moving the scissor feet in the same direction, the scissor runner plates 12 are provided with moving baffles 13 for preventing the scissor feet from overflowing, the moving baffles 13 are provided with first air cylinders 14, the first air cylinders 14 drive the moving baffles 13 to prevent the scissor feet from overflowing in a closed state, and the linear vibrators 15 for horizontally moving the scissor feet are provided at lower parts of the scissor runner plates 12.

As shown in fig. 4, the guide member 21 includes a first guide rod 211, a second guide rod 212, a third guide rod 213, a fourth guide rod 214, a first linear bearing 215, a second linear bearing 216, a third linear bearing 217, a fourth linear bearing 218, a fixing plate 219, and the up-down movable plate 26, the first linear bearing 215 is fitted over the first guide rod 211, the first linear bearing 215 reciprocates up and down along the first guide rod 211, the second linear bearing 216 is fitted over the second guide rod 212, the second linear bearing 216 reciprocates up and down along the second guide rod 212, the third linear bearing 217 is fitted over the third guide rod 213, the third linear bearing 217 reciprocates up and down along the third guide rod 213, the fourth linear bearing 218 is fitted over the fourth guide rod 214, the fourth linear bearing 218 reciprocates up and down along the fourth guide rod 214, the first guide rod 211, the second guide rod 212, the third guide rod 213 and the fourth guide rod 214 are mounted at one end on the scissor-leg transfer device 3, and at the other end on the fixing plate 219, the fixing plate 219 is fixed at the top of the guide rods, the first linear bearing 215, the second linear bearing 216, the third linear bearing 217 and the fourth linear bearing 218 are mounted with the up-down moving plate 26, and the up-down moving plate 26 reciprocates up and down along the guide rods.

As shown in fig. 4, the scissor-foot take-out assembly 22 includes a second cylinder 221, a first mounting plate 222, a pull-away block 223, a chute plate 224, a stripper plate 225 and a frustum 226, the second cylinder 221 is mounted on the fixed plate 219, the second cylinder 221 drives the first mounting plate 222 to reciprocate up and down, the first mounting plate 222 is installed on the up-down moving plate 26, the pull-open slider 223 is installed at the lower end of the up-down moving plate 26, the pull-open slide block 223 is provided with a frustum 226 for inserting scissors feet to take materials, the pull-open slider 223 penetrates through the chute plate 224, the lower end of the chute plate 224 is also provided with a discharge plate 225, the second air cylinder 221 extends out to drive the pulling slide block 223 to move downwards, the frustum 226 is inserted into the scissor foot slide groove plate 12 to take the scissor feet integrally, the second air cylinder 221 retracts to drive the pulling slide block 223 to move upwards, and the scissor feet are integrally lifted.

As shown in fig. 4, the pulling member 23 includes a third cylinder 231, a lateral adjustment block 232, a movable top shaft 233, and a chute fixing plate 234, the chute fixing plate 234 is installed at the lower end of the up-down moving plate 26, the third cylinder 231 is installed on the chute fixing plate 234, the third cylinder 231 drives the lateral adjustment block 232 to horizontally reciprocate, the lateral adjustment block 232 is installed with the movable top shaft 233, the movable top shaft 233 passes through the chute plate 224 to drive the pulling slider 223 to horizontally reciprocate in the chute plate 224, so as to adjust the distance between the scissor legs, so as to be suitable for the assembly with the hook plate.

The left stretching component 24 comprises a fourth cylinder 241, the fourth cylinder 241 is installed between the first installation plate 222 and the up-down moving plate 26, the fourth cylinder 241 drives the sliding groove fixing plate 234 to stretch leftwards, the leftward stretching is the first stretching, and the leftward stretching is only conducted to one side to effectively avoid the side turning in the stretching process.

The right stretching component 25 comprises a fifth cylinder 251, the fifth cylinder 251 is arranged between the first mounting plate 222 and the up-down moving plate 26, the fifth cylinder 251 drives the chute fixing plate 234 to stretch rightwards, the stretching rightwards is stretching for the second time, stretching is carried out only to one side to effectively avoid the situation that the side is turned over in the stretching process, and complete discharging of the scissor legs is achieved after stretching of the two sides.

As shown in fig. 5, the scissors foot transferring device 3 includes a fixed plate base plate 31, a left guide block 32, a right guide block 33, a sliding base plate 34, an assembly mold lower plate 35, a scissors foot guide plate 36 and a sixth cylinder 37, the fixed plate base plate 31 is mounted on the frame, the left guide block 32 is mounted on the left side of the fixed plate base plate 31, the right guide block 33 is mounted on the right side of the fixed plate base plate 31, the sixth cylinder 37 is fixed on the fixed plate base plate 31, the sliding base plate 34 is driven to reciprocate back and forth along the left guide block 32 and the right guide block 33, the assembly mold lower plate 35 is mounted on the sliding base plate 34, the scissors foot guide plate 36 is movably mounted on the assembly mold lower plate 35, when the scissors foot taking-out component 22 takes out the whole scissors foot, the sixth cylinder 37 drives the sliding base plate 34 to move back, and moves the whole scissors foot above the scissors foot guide plate 36, the scissor legs are firstly stretched leftwards and then stretched rightwards, complete unloading is achieved, and after unloading, the sixth air cylinder 37 drives the sliding bottom plate 34 to move forwards to convey the scissor legs to the die part.

In the using process of the mechanism, firstly, the vibrating disk device 1 automatically and orderly feeds the bulk scissors feet; then, the scissor-leg removing part 22 removes the whole ordered scissor legs from the vibration plate device 1; thirdly, the sixth air cylinder 37 drives the sliding bottom plate 34 to move backwards, so that the scissor guide plate 36 is moved below the integral scissor; thirdly, the distance between the scissor legs is adjusted by the pulling-open component 23 to be suitable for assembling with the hook plate, the scissor legs are stretched for the first time to the left by the left stretching component 24, the scissor legs are stretched for the second time to the right by the right stretching component 25, and complete unloading is realized; finally, the sixth cylinder 37 drives the sliding bottom plate 34 to move forward, so that the scissor guide plates 36 are moved out of the scissor transverse pulling device 2 to the die press-fitting process.

To sum up, the beneficial effects of the utility model reside in that:

the utility model utilizes the vibration disc device 1 to orderly feed the bulk scissors feet, realizes automatic feeding and automatic arrangement, has high assembly efficiency, and is beneficial to reducing the labor cost; the utility model takes out the scissor legs from the vibration disc device by utilizing the scissor leg transverse pulling device 2, places the scissor legs on the scissor leg transferring device, and then carries out operations such as transverse distance pulling, automatic arrangement, transverse arrangement and the like on the scissor legs, thereby realizing the function of automatically arranging the bulk scissor legs on an assembly mould at one time; the utility model has high automation degree and high assembly efficiency, reduces the labor cost, ensures that the assembly quality of the product is more stable and reliable, and effectively improves the qualification rate of the product; the utility model discloses utilize scissors foot transfer device 3 to deliver to the mould part with the scissors foot of arranging, transfer out the horizontal pull open device 2 of scissors foot, carry out next process, realize transporting automatically, practice thrift the equipment time, improve the packaging efficiency.

Claims

1. The keyboard bulk scissor automatic feeding mechanism is characterized by comprising a vibrating disc device (1) for orderly feeding bulk scissor legs, wherein the tail end of the vibrating disc device (1) is provided with a scissor leg transverse pulling device (2) for transversely pulling the scissor legs, one side of the scissor leg transverse pulling device (2) is provided with a scissor leg conveying device (3) for conveying the arranged scissor legs to a mould part, the scissor leg transverse pulling device (2) comprises a guide component (21) for supporting and guiding, the guide component (21) is arranged on one side of the scissor leg conveying device (3), the guide component (21) is provided with a scissor leg taking-out component (22) for integrally taking out the ordered scissor legs, the scissor leg taking-out component (22) is provided with a pulling component (23) for pulling the scissor legs to be transversely separated, the pulling component (23) is provided with a left pulling component (24) for pulling the scissor legs to the left, and the pulling component (23) is provided with a right pulling component (25) for pulling the scissor legs to the right.

2. The keyboard bulk shear foot automatic feeding mechanism of claim 1, the vibrating disk device (1) comprises a plurality of vibrating disks (11) which can lead the directions of the bulk scissors feet to be consistent, a scissors foot chute plate (12), a movable baffle plate (13), a first air cylinder (14) and a linear vibrator (15), the tail end of the vibration disc (11) is provided with a scissor foot chute plate (12) which horizontally transfers the scissor feet with the same direction, a movable baffle (13) for preventing scissors feet from overflowing is arranged on the scissors foot sliding groove plate (12), the movable baffle (13) is provided with a first air cylinder (14), the first air cylinder (14) drives the movable baffle (13) to prevent the scissors feet in a closed state from overflowing, the lower part of the scissor foot chute plate (12) is provided with a linear vibrator (15) for realizing the horizontal movement of the scissor feet.

3. The automatic keyboard bulk scissor feeding mechanism according to claim 1, wherein the guide member (21) comprises a first guide rod (211), a second guide rod (212), a third guide rod (213), a fourth guide rod (214), a first linear bearing (215), a second linear bearing (216), a third linear bearing (217), a fourth linear bearing (218), a fixing plate (219) and an up-and-down moving plate (26), the first linear bearing (215) is sleeved on the first guide rod (211), the second linear bearing (216) is sleeved on the second guide rod (212), the third linear bearing (217) is sleeved on the third guide rod (213), the fourth linear bearing (218) is sleeved on the fourth guide rod (214), the first guide rod (211), the second guide rod (212), the third guide rod (213) and the fourth guide rod (214) are mounted on the scissor leg transfer device (3), the other end is arranged on a fixed plate (219), and the first linear bearing (215), the second linear bearing (216), the third linear bearing (217) and the fourth linear bearing (218) are provided with an up-down moving plate (26).

4. The keyboard automatic feeding mechanism for bulk scissors feet is characterized in that the scissors foot taking-out component (22) comprises a second cylinder (221), a first mounting plate (222), a pulling-out sliding block (223), a chute plate (224), a discharging plate (225) and a frustum (226), wherein the second cylinder (221) is arranged on a fixing plate (219), the second cylinder (221) drives the first mounting plate (222) to reciprocate up and down, the first mounting plate (222) is arranged on an up-and-down moving plate (26), the pulling-out sliding block (223) is arranged at the lower end of the up-and-down moving plate (26), the pulling-out sliding block (223) is provided with the frustum (226) for inserting scissors feet to take materials, the pulling-out sliding block (223) penetrates through the chute plate (224), and the discharging plate (225) is further arranged at the lower end of the chute plate (224).

5. The keyboard bulk scissor automatic feeding mechanism is characterized in that the pulling component (23) comprises a third cylinder (231), a transverse adjusting block (232), a movable top shaft (233) and a chute fixing plate (234), the chute fixing plate (234) is arranged at the lower end of the up-down moving plate (26), the third cylinder (231) is arranged on the chute fixing plate (234), the third cylinder (231) drives the transverse adjusting block (232) to horizontally reciprocate, the transverse adjusting block (232) is provided with the movable top shaft (233), and the movable top shaft (233) penetrates through the chute plate (224) to drive the pulling slider (223) to horizontally reciprocate in the chute plate (224).

6. The keyboard bulk shear foot automatic feeding mechanism according to claim 5, wherein the left stretching member (24) comprises a fourth cylinder (241), the fourth cylinder (241) is installed between the first mounting plate (222) and the up-down moving plate (26), and the fourth cylinder (241) drives the chute fixing plate (234) to stretch to the left.

7. The keyboard bulk shear foot automatic feeding mechanism according to claim 5, wherein the right stretching member (25) comprises a fifth air cylinder (251), the fifth air cylinder (251) is installed between the first mounting plate (222) and the up-down moving plate (26), and the fifth air cylinder (251) drives the chute fixing plate (234) to stretch to the right.

8. The keyboard bulk shear foot automatic feeding mechanism of claim 1, the scissor foot transfer device (3) comprises a fixed plate bottom plate (31), a left side guide block (32), a right side guide block (33), a sliding bottom plate (34), an assembly mold lower plate (35), a scissor foot guide plate (36) and a sixth air cylinder (37), the fixed plate bottom plate (31) is arranged on the frame, the left side of the fixed plate bottom plate (31) is provided with a left guide block (32), the right side is provided with a right guide block (33), the sixth cylinder (37) is fixed on the fixed plate bottom plate (31) and drives the sliding bottom plate (34) to reciprocate back and forth along the left guide block (32) and the right guide block (33), an assembly mold lower plate (35) is arranged on the sliding bottom plate (34), and the scissor foot guide plate (36) is movably arranged on the assembly mold lower plate (35).