Lateral punching and lateral hole flanging integrated forming mechanism for front sealing door of washing machine

Abstract

The utility model relates to the field of washing machine processing equipment, and discloses a washing machine front sealing door side punching and side hole flanging integrated forming mechanism which comprises an upper die assembly and a lower die assembly, the upper die assembly comprises an upper die plate and a hole flanging male die arranged on the upper die plate, a hole flanging molded surface is formed on the side surface of the hole flanging male die, and a punch is arranged at the head end of the hole flanging male die; the lower die assembly comprises a lower die plate and a hole flanging female die arranged on the lower die plate, a hole flanging cavity matched with the hole flanging molded surface is formed in the hole flanging female die, and a punching female die matched with the punch is arranged in the hole flanging cavity; and the linkage assembly comprises a first female die driving block, and the first female die driving block performs die closing action along with the upper die assembly and the lower die assembly and drives the punching female die to reciprocate in the hole flanging cavity. According to the front sealing door upper side square hole punching and flanging device, punching and flanging are completed in one step when a front sealing door upper side square hole is machined, the machining procedure is simplified, the equipment cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of washing machine processing equipment, and in particular to an integrated forming mechanism for punching and flipping holes on the front door side of a washing machine. Background Technology

[0002] like Figure 1 As shown, the normal processing steps for the washing machine front door sealing workpiece 400 include: ① stretching; ② punching and trimming; ③ side punching of square holes; ④ side flipping of square holes and bending; ⑤ bending around the perimeter and flipping of the large central hole; ⑥ bending and flipping of the large central hole. Square hole 401 is the hole for installing the washing machine controller. Figure 2 As shown.

[0003] To complete the above processes, multiple punch presses are generally required, resulting in high equipment costs, large space requirements, and frequent loading and unloading, which increases the difficulty of designing automated production lines and affects processing efficiency. Therefore, it is necessary to simplify the processes as much as possible and improve the processing capacity of a single punch press. Among them, side punching and side flipping are two processes for machining the same square hole 401, and it is desirable to design these two processes to be completed on a single punch press. Utility Model Content

[0004] Based on the above problems, the purpose of this utility model is to provide an integrated forming mechanism for side punching and side flipping holes on the front door of a washing machine, so as to complete the two processes of side punching and side flipping holes in one step in a single stamping process, simplifying the equipment and improving the processing efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An integrated forming mechanism for punching and flipping holes on the front door side of a washing machine, comprising:

[0007] The upper mold assembly includes an upper template and a piercing punch disposed on the upper template. The side surface of the piercing punch is formed with a piercing profile, and the head end of the piercing punch is provided with a punch.

[0008] The lower die assembly includes a lower template and a flanging die disposed on the lower template. The flanging die is provided with a flanging cavity that mates with the flanging profile, and a punching die that mates with the punch is disposed in the flanging cavity.

[0009] The linkage component includes a first die drive block, which moves the punching die back and forth in the cavitation cavity as the upper die assembly and lower die assembly close.

[0010] Optionally, the punching die is connected to the inner wall of the flipping die by a first limiting bolt. A first return spring is sleeved on the first limiting bolt. In the punching state, the punching die is pressed towards the punch by the first die driving block; in the flipping state, the punching die is pressed away from the punch by the first return spring.

[0011] Optionally, the linkage component also includes a first upper die drive block disposed on the upper template. An elastic insert is mounted on the first upper die drive block via a second reset spring. The elastic insert, the first die drive block, and the punching die abut against each other in sequence, thereby converting the downward movement of the first upper die drive block into the reciprocating movement of the punching die.

[0012] Optionally, the first die driving block is limited by the first guide block and can only move horizontally relative to the lower template. The first end face of the first die driving block and the back of the punching die are slidably engaged by an inclined surface. The second end face of the first die driving block is provided with a first guide inclined surface, a first guide vertical surface, and a second guide inclined surface that are smoothly connected in sequence. The elastic insert is provided with a third guide inclined surface, a second guide vertical surface, and a fourth guide inclined surface that are smoothly connected in sequence. In the punching state, the engagement between the elastic insert and the first die driving block changes from the engagement of the first guide inclined surface and the third guide inclined surface to the engagement of the first guide vertical surface and the second guide vertical surface. The first die driving block moves forward and presses against the punching die. In the flipping state, the engagement between the elastic insert and the first die driving block changes from the engagement of the first guide vertical surface and the second guide vertical surface to the engagement of the second guide inclined surface and the fourth guide inclined surface. The first die driving block moves backward.

[0013] Optionally, a die mounting base is provided on the lower template, and a second guide block is provided on the die mounting base. The slidable die is mounted on the die mounting base and limited by the second guide block to move only towards the slidable punch. A limit groove is provided on the surface of the die mounting base, and a limit block inserted into the limit groove is provided at the bottom of the slidable die. A first nitrogen spring abutting against the limit block is provided in the limit groove.

[0014] Optionally, a fixed plate is provided on the lower template behind the die mounting base. A sliding plate is slidably mounted on the fixed plate. The sliding plate is limited by a third guide block and can only move back and forth toward the die mounting base. A first die driving block is slidably mounted on the sliding plate and is connected to the sliding plate by a second limiting bolt. A third return spring is sleeved on the second limiting bolt. The linkage assembly also includes a second die driving block mounted on the sliding plate and a second upper die driving block mounted on the upper template. The first end face of the second die driving block is slidably engaged with the back of the piercing die through an inclined surface. The second end face of the second die driving block is slidably engaged with the second upper die driving block through an inclined surface. The second die driving block is connected to the die mounting base by a third limiting bolt. A second nitrogen spring is provided between the sliding plate and the die mounting base to convert the downward movement of the second upper die driving block into the reciprocating movement of the piercing die.

[0015] Optionally, wear-resistant plates are provided between the piercing die and the die mounting base, between the fixed plate and the slide plate, and between the slide plate and the first die drive block.

[0016] Optionally, the upper template is provided with a slider fixing seat, and the slider fixing seat is provided with a sliding wedge slider. The piercing punch is fixed on the wedge slider, and the lower template is provided with a wedge drive seat. The wedge drive seat and the wedge slider slide through the inclined surface, so that the piercing punch gradually punches into the piercing die as the die closes.

[0017] Optionally, a pressure plate is mounted on the wedge slider via a fourth limiting bolt, and a third nitrogen spring is provided between the pressure plate and the wedge slider. The pressure plate has a through hole that allows the flipping punch and the punch to pass through.

[0018] Optionally, a blanking bin is provided inside the lower template, and a scrap box is provided inside the blanking bin. A blanking channel is provided inside the punching die that passes through the flipping die and the die mounting base and is connected to the blanking bin.

[0019] In summary, the beneficial effects of this utility model are that, compared with the prior art, the integrated forming mechanism for punching and flipping holes on the front door side of the washing machine realizes the punching and flipping actions in one step when processing the square hole on the upper side of the front door, which simplifies the processing steps, reduces equipment costs, and improves production efficiency. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of the washing machine front door sealing workpiece provided in this embodiment of the utility model;

[0021] Figure 2 yes Figure 1 Enlarged view at point I;

[0022] Figure 3 This is a structural outline drawing of the integrated forming mechanism for punching and flipping holes on the front sealing side of the washing machine provided in this embodiment of the utility model;

[0023] Figure 4 This is a cross-sectional view of the integrated forming mechanism for punching and flipping holes on the front sealing side of the washing machine provided in this embodiment of the utility model;

[0024] Figure 5 Figure 4 yes Figure 1 Enlarged view at point II;

[0025] Figure 6 This is a partial schematic diagram of the lower mold assembly in the integrated molding mechanism for punching and flipping holes on the front door side of the washing machine provided in this embodiment of the utility model. Figure 1 ;

[0026] Figure 7 This is a partial schematic diagram of the lower mold assembly in the integrated molding mechanism for punching and flipping holes on the front door side of a washing machine provided in this embodiment of the utility model. Figure 2 ;

[0027] Figure 8This is an exploded structural diagram of some components of the upper mold assembly in the integrated forming mechanism for punching and flipping holes on the front door side of the washing machine provided in this embodiment of the utility model.

[0028] Figure 9 This is a schematic diagram of some components of the lower mold assembly in the integrated forming mechanism for punching and flipping holes on the front door side of a washing machine provided in this embodiment of the utility model. Figure 1 ;

[0029] Figure 10 This is a schematic diagram of some components of the lower mold assembly in the integrated forming mechanism for punching and flipping holes on the front door side of a washing machine provided in this embodiment of the utility model. Figure 2 ;

[0030] Figure 11 This is a schematic diagram showing the connection between the punching die and the flipping die in the integrated forming mechanism for punching and flipping holes on the front door side of the washing machine provided in this embodiment of the utility model.

[0031] Figure 12 This is a schematic diagram of the installation of the first concave mold drive block and the sliding plate in the integrated forming mechanism for punching and flipping holes on the front sealing side of the washing machine provided in this embodiment of the utility model;

[0032] Figure 13 This is a schematic diagram of the installation of the flipping die and the die mounting base in the integrated forming mechanism for punching and flipping holes on the front door side of the washing machine provided in this embodiment of the utility model.

[0033] Figure 14 This is a schematic diagram showing the connection between the second die drive block and the die mounting base in the integrated forming mechanism for punching and flipping holes on the front door side of a washing machine provided in this embodiment of the utility model.

[0034] Figure 15 This is a schematic diagram of the operation of the integrated forming mechanism for punching and flipping holes on the front door side of the washing machine provided in this embodiment of the utility model. Figure 1 ;

[0035] Figure 16 This is a schematic diagram of the operation of the integrated forming mechanism for punching and flipping holes on the front door side of the washing machine provided in this embodiment of the utility model. Figure 2 ;

[0036] Figure 17 This is a schematic diagram of the operation of the integrated forming mechanism for punching and flipping holes on the front door side of the washing machine provided in this embodiment of the utility model. Figure 3 ;

[0037] Figure 18 This is a schematic diagram of the operation of the integrated forming mechanism for punching and flipping holes on the front door side of the washing machine provided in this embodiment of the utility model. Figure 4 ;

[0038] Figure 19This is a schematic diagram of the operation of the integrated forming mechanism for punching and flipping holes on the front door side of the washing machine provided in this embodiment of the utility model. Figure 5 ;

[0039] Figure 20 This is a schematic diagram of the operation of the integrated forming mechanism for punching and flipping holes on the front door side of the washing machine provided in this embodiment of the utility model. Figure 6 ;

[0040] Figure 21 This is a schematic diagram of the operation of the integrated forming mechanism for punching and flipping holes on the front door side of the washing machine provided in this embodiment of the utility model. Figure 7 .

[0041] In the picture:

[0042] 100. Upper mold assembly; 101. Upper template; 102. Flipping punch; 103. Flipping profile; 104. Punch; 105. Slider fixing seat; 106. Wedge slider; 107. Fourth limit bolt; 108. Pressure plate; 109. Third nitrogen spring;

[0043] 200. Lower die assembly; 201. Lower template; 202. Flipping die; 203. Flipping cavity; 204. Punching die; 205. Wedge drive seat; 206. First limit bolt; 207. First return spring; 208. First guide block; 209. Die mounting seat; 210. Second guide block; 211. Limiting groove; 212. Limiting block; 213. First nitrogen spring; 214. Fixing plate; 215. Slide plate; 216. Third guide block; 217. Second limit bolt; 218. Third return spring; 219. Third limit bolt; 220. Second nitrogen spring; 221. Wear-resistant plate; 222. Drop box; 223. Scrap box; 224. Drop channel;

[0044] 300. Linkage component; 301. First die drive block; 301a. First guide ramp; 301b. First guide vertical surface; 301c. Second guide ramp; 302. First upper die drive block; 303. Second reset spring; 304. Elastic insert block; 304a. Third guide ramp; 304b. Second guide vertical surface; 304c. Fourth guide ramp; 305. Second die drive block; 306. Second upper die drive block;

[0045] 400, front sealing door workpiece; 401, square hole. Detailed Implementation

[0046] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0047] Please see Figures 3 to 21 As shown, this preferred embodiment provides an integrated forming mechanism for punching and flipping holes on the side of the front door of a washing machine, which is designed to meet the forming requirements of the upper hole 401 on the front door workpiece 400. The mechanism includes an upper mold assembly 100, a lower mold assembly 200, and a linkage assembly 300.

[0048] The upper mold assembly 100 includes an upper template 101 and a piercing punch 102 disposed on the upper template 101. The side surface of the piercing punch 102 is formed with a piercing profile 103, and the head end of the piercing punch 102 is provided with a punch 104.

[0049] The lower die assembly 200 includes a lower template 201 and a piercing die 202 disposed on the lower template 201. The piercing die 202 is provided with a piercing cavity 203 that cooperates with the piercing surface 103. The piercing cavity 203 is provided with a punching die 204 that cooperates with the punch 104.

[0050] The linkage component 300 includes a first die drive block 301. The first die drive block 301 moves back and forth in the hole-flipping cavity 203 as the upper die component 100 and the lower die component 200 close.

[0051] For details, see Figure 8 The upper template 101 is provided with a slider fixing seat 105, and the slider fixing seat 105 is provided with a sliding wedge slider 106. The actual sliding angle is adjusted according to the angle of the side square hole 401. The flipping punch 102 is fixed on the wedge slider 106. The lower template 201 is provided with a wedge drive seat 205. The wedge drive seat 205 and the wedge slider 106 slide through the inclined surface, so that the flipping punch 102 can gradually and accurately punch into the flipping die 202 as the mold closes.

[0052] Furthermore, a pressure plate 108 is installed on the wedge slider 106 via a fourth limiting bolt 107, and a third nitrogen spring 109 is provided between the pressure plate 108 and the wedge slider 106. The pressure plate 108 has a through hole that allows the flipping punch 102 and the punch 104 to pass through, which is convenient for pressing the front sealing door workpiece 400 to avoid the front sealing door workpiece 400 from moving or being deformed locally, thus ensuring the quality of punching and flipping.

[0053] Specifically, see details. Figure 11 The punching die 204 is connected to the inner wall of the flipping die 202 via a first limiting bolt 206. A first return spring 207 is sleeved on the first limiting bolt 206. In the punching state, the punching die 204 is pressed towards the punch 104 by the first die driving block 301; in the flipping state, the punching die 204 is pressed away from the punch 104 by the first return spring 207. Thus, the front sealing door workpiece 400 can be punched and then flipped in one mold closing process, without the need for two sets of equipment.

[0054] Furthermore, the linkage component 300 also includes a first upper die drive block 302, which is disposed on the upper template 101 and has an elastic insert 304 installed on it via a second reset spring 303. The elastic insert 304, the first die drive block 301, and the punching die 204 abut against each other in sequence, thereby converting the downward movement of the first upper die drive block 302 into the reciprocating movement of the punching die 204.

[0055] Specifically, the first die drive block 301 is limited by the first guide block 208 and can only move horizontally relative to the lower template 201. Furthermore, the first end face of the first die drive block 301 and the back face of the punching die 204 are slidably engaged via an inclined surface. See details... Figure 5 The second end face of the first die drive block 301 is provided with a first guide slope 301a, a first guide vertical surface 301b, and a second guide slope 301c that are smoothly connected in sequence. The corresponding elastic insert block 304 is provided with a third guide slope 304a, a second guide vertical surface 304b, and a fourth guide slope 304c that are smoothly connected in sequence.

[0056] Therefore, in the punching state, the elastic insert 304 and the first die driving block 301 are transformed from the first guide slope 301a and the third guide slope 304a to the first guide vertical surface 301b and the second guide vertical surface 304b. The first die driving block 301 moves forward to press the punching die 204 so that the punching die 204 can cooperate with the punch 104 to perform punching. In the flipping state, the elastic insert 304 and the first die driving block 301 are transformed from the first guide vertical surface 301b and the second guide vertical surface 304b to the second guide slope 301c and the fourth guide slope 304c. The first die driving block 301 moves backward, which does not affect the subsequent flipping surface 103 and flipping cavity 203 to perform flipping.

[0057] For further details, please see Figure 9A die mounting base 209 is provided on the lower template 201, and a second guide block 210 is provided on the die mounting base 209. The flanging die 202 is slidably mounted on the die mounting base 209 and limited by the second guide block 210, allowing it to reciprocate only toward the flanging punch 102. A limit groove 211 is formed on the surface of the die mounting base 209, and a limit block 212 is provided at the bottom of the flanging die 202, which is inserted into the limit groove 211. A first nitrogen spring 213 is provided in the limit groove 211 to abut against the limit block 212. See details. Figure 13 Therefore, by giving the flanging die 202 the ability to move, it is convenient for the flanging die 202 to demold the front sealing workpiece 400 after flanging.

[0058] Specifically, to enable the piercing die 202 to open and close simultaneously with the die closing action, the linkage assembly 300 also includes a second die driving block 305 and a second upper die driving block 306 disposed on the upper template 101, as detailed in [link to details]. Figure 10 A fixing plate 214 is provided on the lower template 201, located behind the die mounting base 209. A sliding plate 215 is slidably mounted on the fixing plate 214. The sliding plate 215 is limited by a third guide block 216 and can only move back and forth toward the die mounting base 209. A first die driving block 301 is slidably mounted on the sliding plate 215, and the first die driving block 301 is connected to the sliding plate 215 through a second limiting bolt 217. A third return spring 218 is sleeved on the second limiting bolt 217. See details. Figure 12 The second die drive block 305 is fixed on the slide plate 215. The first end face of the second die drive block 305 is in sliding engagement with the back of the flanging die 202 via an inclined surface. The second end face of the second die drive block 305 is in sliding engagement with the second upper die drive block 306 via an inclined surface. The second die drive block 305 is connected to the die mounting base 209 via a third limiting bolt 219. A second nitrogen spring 220 is provided between the slide plate 215 and the die mounting base 209. See details. Figure 14 This converts the downward motion of the second upper die drive block 306 into the reciprocating movement of the piercing die 202.

[0059] Furthermore, wear-resistant plates 221 are respectively provided between the piercing die 202 and the die mounting base 209, between the fixing plate 214 and the sliding plate 215, and between the sliding plate 215 and the first die driving block 301.

[0060] In addition, a blanking bin 222 is provided in the lower template 201, and a scrap box 223 is provided in the blanking bin 222. A blanking channel 224 is provided in the punching die 204, which is a through-hole turning die 202, a die mounting base 209 and a blanking bin 222, so as to realize orderly chip removal and ensure the normal operation of the mechanism.

[0061] The entire processing procedure is as follows:

[0062] A. Initial state: The upper mold plate 101 begins to descend relative to the lower mold plate 201. The third guide slope 304a of the elastic insert 304 on the first upper mold drive block 302 begins to contact the first guide slope 301a of the first die drive block 301. The second upper mold drive block 306 drives the second die drive block 305 to compress the second nitrogen spring 220 and push the flipping die 202. The flipping die 202 compresses the first nitrogen spring 213 and reaches the closed mold surface position. See below. Figure 15 ;

[0063] B. At the start of the punching process, the upper template 101 continues to descend. The elastic insert 304 presses against the first die drive block 301, moving it towards the die mounting base 209 until the second guide surface 304b of the elastic insert 304 abuts against the first guide surface 301b of the first die drive block 301. At this point, the third return spring 218 and the first return spring 207 reach their maximum compression, pushing the punching die 204 to the punching position. Simultaneously, the pressure plate 108 abuts against the flipping die 202, and the flipping punch 102 and the punch 104 reach the punching position. (See...) Figure 16 ;

[0064] C. At the end of the punching process, the upper template 101 continues to descend, and the second guide surface 304b of the elastic insert block 304 remains in contact with the first guide surface 301b of the first die drive block 301. The punch 104 and the punching die 204 cooperate to complete the punching. Figure 17 ;

[0065] D. In the initial flipping state, the upper template 101 continues to descend, and the fourth guide slope 304c of the elastic insert block 304 begins to contact the second guide slope 301c of the first die drive block 301. The first reset spring 207 and the third reset spring 218 jointly drive the punching die 204 and the first die drive block 301 to retract and reset. See Figure 18 ;

[0066] E. In the punching completion (mold closed) state, the upper die plate 101 descends to its limit, the elastic insert 304 remains disengaged from the first die drive block 301, the flipping punch 102 extends to its limit, and the flipping surface 103 cooperates with the flipping cavity 203 to complete the flipping. Figure 19 ;

[0067] F. At the start of mold opening, the upper mold plate 101 begins to move upward relative to the lower mold plate 201. The fourth guide slope 304c of the elastic insert 304 begins to contact the second guide slope 301c of the first die drive block 301. The second return spring 303 is compressed, and the elastic insert 304 avoids the first die drive block 301. The flipping punch 102 begins to reset. Figure 20 ;

[0068] G. The mold remains open. The upper mold plate 101 continues to move upwards. The second upper mold drive block 306 separates from the second cavity mold drive block 305. The second nitrogen spring 220 pushes the second cavity mold drive block 305 to reset. The first nitrogen spring 213 pushes the flipping cavity mold 202 to sink. The third nitrogen spring 109 pushes the pressure plate 108 to reset. The front sealing door workpiece 400 completes demolding. (See...) Figure 21 .

[0069] In summary, the integrated punching and flipping forming mechanism for the front door of this washing machine enables the punching and flipping of the square hole 401 on the upper side of the front door to be completed in one step, simplifying the processing steps, reducing equipment costs, and improving production efficiency.

[0070] The above embodiments merely illustrate the basic principles and characteristics of this utility model. This utility model is not limited to the above embodiments. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An integrated forming mechanism for punching and flipping holes on the front door side of a washing machine, characterized in that, include: The upper mold assembly (100) includes an upper template (101) and a piercing punch (102) disposed on the upper template (101). The side surface of the piercing punch (102) is formed with a piercing profile (103), and the head end of the piercing punch (102) is provided with a punch (104). The lower die assembly (200) includes a lower template (201) and a flanging die (202) disposed on the lower template (201). The flanging die (202) is provided with a flanging cavity (203) that mates with the flanging surface (103). The flanging cavity (203) is provided with a punching die (204) that mates with the punch (104). The linkage component (300) includes a first die drive block (301), which drives the punching die (204) to reciprocate in the flanging cavity (203) as the upper die assembly (100) and the lower die assembly (200) close the die.

2. The integrated forming mechanism for punching and flipping holes on the front door side of a washing machine according to claim 1, characterized in that, The punching die (204) is connected to the inner wall of the flanging die (202) by a first limiting bolt (206), and a first return spring (207) is sleeved on the first limiting bolt (206). In the punching state, the punching die (204) is pressed against the punch (104) by the first die driving block (301) and moves toward the punch (104); In the flipping state, the punching die (204) is pressed away from the punch (104) by the first return spring (207).

3. The integrated forming mechanism for punching and flipping holes on the front door side of a washing machine according to claim 1, characterized in that, The linkage component (300) further includes a first upper die drive block (302) disposed on the upper template (101). An elastic insert (304) is mounted on the first upper die drive block (302) via a second reset spring (303). The elastic insert (304), the first die drive block (301), and the punching die (204) abut against each other in sequence, thereby converting the downward movement of the first upper die drive block (302) into the reciprocating movement of the punching die (204).

4. The integrated forming mechanism for punching and flipping holes on the front door side of a washing machine according to claim 3, characterized in that, The first die drive block (301) is limited by the first guide block (208) and can only move horizontally relative to the lower template (201). The first end face of the first die drive block (301) and the back of the punching die (204) are slidably engaged by an inclined surface. The second end face of the first die drive block (301) is provided with a first guide inclined surface (301a), a first guide vertical surface (301b), and a second guide inclined surface (301c) that are smoothly connected in sequence. The elastic insert (304) is provided with a third guide inclined surface (304a), a second guide vertical surface (304b), and a fourth guide inclined surface (304c) that are smoothly connected in sequence. In the punching state, the elastic insert (304) and the first die driving block (301) are transformed from the first guide slope (301a) and the third guide slope (304a) to the first guide vertical surface (301b) and the second guide vertical surface (304b) cooperating, and the first die driving block (301) moves forward to press the punching die (204); In the flipping state, the elastic insert (304) and the first die driving block (301) are transformed from the first guide surface (301b) and the second guide surface (304b) to the second guide slope (301c) and the fourth guide slope (304c) in cooperation, and the first die driving block (301) moves backward.

5. The integrated forming mechanism for punching and flipping holes on the front door side of a washing machine according to claim 4, characterized in that, The lower template (201) is provided with a die mounting base (209), and the die mounting base (209) is provided with a second guide block (210). The piercing die (202) is slidably mounted on the die mounting base (209) and limited by the second guide block (210) to move back and forth only toward the piercing punch (102). A limiting groove (211) is opened on the surface of the die mounting base (209). A limiting block (212) is provided at the bottom of the piercing die (202) and inserted into the limiting groove (211). A first nitrogen spring (213) is provided in the limiting groove (211) to abut against the limiting block (212).

6. The integrated forming mechanism for punching and flipping holes on the front door side of a washing machine according to claim 5, characterized in that, The lower template (201) is provided with a fixing plate (214) located behind the die mounting base (209). A sliding plate (215) is slidably disposed on the fixing plate (214). The sliding plate (215) is limited by a third guide block (216) and can only move back and forth toward the die mounting base (209). The first die driving block (301) is slidably disposed on the sliding plate (215), and the first die driving block (301) is connected to the sliding plate (215) through a second limiting bolt (217). A third return spring (218) is sleeved on the second limiting bolt (217). The linkage component (300) further includes a second die drive block (305) disposed on the slide plate (215) and a second upper die drive block (306) disposed on the upper template (101). The first end face of the second die drive block (305) is in inclined sliding engagement with the back of the piercing die (202). The second end face of the second die drive block (305) is in inclined sliding engagement with the second upper die drive block (306). The second die drive block (305) is connected to the die mounting base (209) through a third limiting bolt (219). A second nitrogen spring (220) is disposed between the slide plate (215) and the die mounting base (209) to realize the conversion of the downward movement of the second upper die drive block (306) into the reciprocating movement of the piercing die (202).

7. The integrated forming mechanism for punching and flipping holes on the front door side of a washing machine according to claim 6, characterized in that, Wear-resistant plates (221) are respectively provided between the piercing die (202) and the die mounting base (209), between the fixing plate (214) and the sliding plate (215), and between the sliding plate (215) and the first die driving block (301).

8. The integrated forming mechanism for punching and flipping holes on the front door side of a washing machine according to claim 1, characterized in that, The upper template (101) is provided with a slider fixing seat (105), and the slider fixing seat (105) is provided with a sliding wedge slider (106). The piercing punch (102) is fixed on the wedge slider (106). The lower template (201) is provided with a wedge drive seat (205). The wedge drive seat (205) and the wedge slider (106) slide through the inclined surface, so that the piercing punch (102) gradually punches into the piercing die (202) as the mold closing action occurs.

9. The integrated forming mechanism for punching and flipping holes on the front door side of a washing machine according to claim 8, characterized in that, A pressure plate (108) is mounted on the wedge slider (106) by a fourth limiting bolt (107), and a third nitrogen spring (109) is provided between the pressure plate (108) and the wedge slider (106). The pressure plate (108) has a through hole that allows the flipping punch (102) and the punch (104) to pass through.

10. The integrated forming mechanism for punching and flipping holes on the front door side of a washing machine according to claim 5, characterized in that, The lower template (201) is provided with a material discharge bin (222), the material discharge bin (222) is provided with a waste box (223), and the punching die (204) is provided with a material discharge channel (224) that penetrates the punching die (202), the die mounting base (209) and communicates with the material discharge bin (222).

Images