A Z-shaped bending die structure

Abstract

The present invention discloses a Z-shaped bending mold structure, comprising an upper mold mechanism, a lower mold mechanism and a positioning and feeding mechanism, the upper mold mechanism comprising an upper mold base, an upper stop plate installed below the upper mold base and a pressure plate installed below the upper stop plate, a layer of bending concave mold is installed on both sides of the upper stop plate, and a second layer of bending concave mold located on the outside of the first layer of bending concave mold is installed below the upper mold base; the lower mold mechanism comprises a lower mold base and a lower stop plate installed above the lower mold base, a feeding support plate is installed above the lower stop plate, and bending swing blocks are hingedly installed on both sides of the lower stop plate; the positioning and feeding mechanism comprises a limit plate installed on the lower mold base and a conveying plate installed on one side of the lower mold mechanism for driving reciprocating motion, the feeding support plate is vertically lifted and slidably installed on the inner side of the conveying plate, and the inner side wall of the conveying plate located above the surface of the feeding support plate constitutes an extrusion surface for extruding the side wall of the bending plate. The present invention improves the positioning of the triangular bending plate and the Z-shaped bending efficiency of the extensions on both sides.

Description

Technical Field

[0001] The invention relates to the technical field of mold mechanisms, and in particular to a Z-shaped bending mold structure. Background Art

[0002] Attachment Figure 1 The extensions 300 on both sides of the triangular center plate 200 of the bending plate 100 shown in the figure are stamped to form a Z-shaped bending structure having a first folding segment 31, a second folding segment 32 and a third folding segment 33. During the stamping process, since the length, height and angle of each bending edge are in an assembly relationship with the plastic part, the size and appearance of the bending edge are required to be high. The existing stamping method has the following defects:

[0003] (1) Most of the current processes are completed in two steps, which requires two sets of molds, which is not only costly but also has low stamping efficiency;

[0004] (2) In the prior art, the bent plate 100 is usually loaded manually onto the lower die for positioning, and after the subsequent stamping operation is completed, the bent plate 100 is taken out to make room for the subsequent stamping of the plate. In order to facilitate the effective positioning of the bent plate 100, an additional positioning device is usually required on the stamping die, which has a complex structure. Moreover, after the bent plate 100 is positioned, the subsequent stamping accuracy is affected due to the lack of effective clamping before stamping. The loading and unloading is performed manually, which makes the entire bending process inefficient.

[0005] (3) At the same time, during the stamping process, due to the small gap between the blades, the two blades squeeze each other after the sheet is stamped, resulting in soft burrs, which fall off directly during the production process, generating debris. These debris will be brought to the mold surface along with the negative pressure generated during the stamping process, and the debris falling on the mold surface will produce part imprints and convex points during the stamping process, affecting the quality of the product. Summary of the invention

[0006] To this end, the present invention provides a Z-shaped bending mold structure to solve the above-mentioned defects in the prior art.

[0007] A Z-shaped bending die structure, comprising:

[0008] An upper die mechanism, comprising an upper die seat driven to rise and fall by an upper power source, an upper stop plate installed below the upper die seat by a first upper cylinder, and a press plate installed below the upper stop plate by a second upper cylinder, a layer of bending die is installed on both sides below the upper stop plate, and a second layer of bending die is also installed below the upper die seat and located outside the first layer of bending die;

[0009] The lower die mechanism comprises a lower die seat, a lower stop plate installed above the lower die seat through a lower cylinder, a feeding support plate with two sides extending to the outside of the lower stop plate installed above the lower stop plate, a bending swing block is hingedly installed on both sides of the lower stop plate, and the inner side of the bending swing block is connected to the lower die seat through a compression spring;

[0010] The positioning and feeding mechanism includes a limit plate installed on the surface of the lower die base corresponding to the outer side of the two-layer bending die and a conveying plate installed on one side of the lower die mechanism and driven to reciprocate by a reciprocating cylinder. The limit plate is used to limit the extension parts on both sides of the bending plate after positioning. The feeding support plate is vertically lifted and slidably installed on the inner side of the conveying plate. The inner side wall of the conveying plate located above the surface of the feeding support plate constitutes an extrusion surface for extruding the side wall of the bending plate.

[0011] Preferably, it also includes a workbench, the lower die base is installed above the workbench, the lower cylinder is installed between the workbench and the lower die base, the push rod of the lower cylinder extends through to the top of the lower die base, a support frame is also installed above the workbench, and the upper power source is installed on the support plate of the support frame.

[0012] Preferably, it also includes a dust suction mechanism, which includes an airbag installed between the lower surface of the support plate of the support frame and the upper mold base, the bottom plate of the airbag is connected to the lower surface of the support plate of the support frame, and the top plate of the airbag is connected to the upper surface of the upper mold base. The airbag is connected to a first suction pipe connected to a first dust suction port and a second suction pipe connected to a second dust suction port, the first dust suction port is arranged on the bottom surface of the first layer of the bending die, and the second dust suction port is arranged on the bottom surface of the second layer of the bending die. The airbag is also connected to an exhaust pipe, and a one-way feed valve is arranged on the first suction pipe and the second suction pipe, and a one-way discharge valve is arranged on the exhaust pipe.

[0013] Preferably, the bottom surface of the upper die seat is provided with a die base connected to the top of the second-layer bending die.

[0014] Preferably, a vertical guide groove is provided on the inner side of the conveying plate, and the connecting block on the inner side of the feeding support plate is slidably installed in the vertical guide groove. The bottom surface of the connecting block on the inner side of the feeding support plate is connected to the bottom of the vertical guide groove by a reset spring. When the feeding support plate runs to the top along the vertical guide groove, the vertical distance between the upper surface of the feeding support plate and the upper surface of the conveying plate is equal to the thickness of the bending plate.

[0015] Preferably, a stacking cylinder for stacking a number of the bent plates in a limited position is provided above the workbench, the lower surface of the stacking cylinder is flush with the upper surface of the conveying plate, and the upper surface of the conveying plate is made of smooth stainless steel.

[0016] Preferably, an open groove is provided on the workbench between the lower mold mechanism and the stacking barrel, a material receiving box is provided below the open groove, a material baffle plate is provided above the open groove, the surface height of the material baffle plate is below the horizontal height of the bottom surface of the feeding support plate, and is above the horizontal height of the bottom surface of the three-fold section of the bent plate after being bent on the feeding support plate, a clearance groove which can horizontally cross the material baffle plate is provided horizontally in the middle part of the conveying plate, a connecting rod with one end connected to the material baffle plate is provided inside the clearance groove, and the other end of the connecting rod is connected to the workbench outside the conveying plate.

[0017] Preferably, the upper stop plate, the pressing plate and the feeding support plate are all shaped similar to the triangular center plate of the bending plate.

[0018] The present invention has the following advantages:

[0019] The device of the present invention can accurately position and load the bent plate to the stamping position during the process of driving the feeding support plate carrying the bent plate to move above the lower stop plate of the lower die mechanism through the cooperation among the upper die mechanism, the lower die mechanism, the positioning and feeding mechanism and the dust suction mechanism; through the mutual cooperation among the first-layer bending die, the second-layer bending die and the bending swing block, the Z-shaped bending of the bent plate can be completed through a set of dies, which not only simplifies the device but also improves the stamping efficiency of the bent plate; and in the stamping process, the negative pressure formed can also adsorb the debris formed at the stamping position to avoid the negative pressure formed in the subsequent stamping process disturbing the debris, thereby improving the stamping quality of the product; in the process of resetting the positioning and feeding mechanism, the bent plate after stamping can be automatically unloaded, which improves the positioning of the triangular bent plate and the Z-shaped bending efficiency of the extensions on both sides as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the bending plate of the present invention before and after bending;

[0021] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the local structure of the present invention;

[0023] Figure 4 It is a schematic diagram of a partial cross-sectional structure of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the bending plate of the present invention when it is positioned but not bent;

[0025] Figure 6 It is a schematic diagram of the mold structure when performing the first bending of the present invention;

[0026] Figure 7 It is a schematic diagram of the mold structure when performing the second and third bending steps of the present invention;

[0027] Figure 8 For the present invention Figure 7 A schematic diagram of the enlarged structure of the A part;

[0028] Fig. 9 It is a partial structural schematic diagram of the positioning feeding mechanism of the present invention.

[0029] In the figure:

[0030] 1-upper die mechanism; 2-lower die mechanism; 3-positioning and feeding mechanism; 4-dust suction mechanism; 10-workbench; 100-bending plate; 200-triangular center plate; 300-extension part; 31-first folding section; 32-second folding section; 33-third folding section;

[0031] 101-upper die base; 102-upper stop plate; 103-die base; 104-first layer bending die; 105-second layer bending die; 106-first upper cylinder; 107-second upper cylinder; 108-pressing plate; 109-upper power source; 110-support frame;

[0032] 201-lower die base; 202-lower stop plate; 203-feeding support plate; 204-bending swing block; 205-compression spring; 206-hinged shaft; 207-lower cylinder;

[0033] 301-limiting plate; 302-conveying plate; 303-extrusion surface; 304-stack barrel; 306-vertical guide groove; 307-blocking plate; 308-opening groove; 309-receiving box; 310-connecting rod; 311-displacement groove; 312-reset spring;

[0034] 401-air bag; 402-first dust suction port; 403-first air suction pipe; 404-second dust suction port; 405-second air suction pipe; 406-exhaust pipe; 407-one-way feed valve; 408-one-way discharge valve. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0036] like Figures 1 to 9 As shown, the present invention provides a Z-shaped bending mold structure, including an upper mold mechanism 1, a lower mold mechanism 2, a positioning and feeding mechanism 3 and a dust suction mechanism 4.

[0037] Among them, the upper mold mechanism 1 includes an upper mold base 101 driven to rise and fall by an upper power source 109, an upper stop plate 102 installed below the upper mold base 101 through a first upper cylinder 106, and a pressure plate 108 installed below the upper stop plate 102 through a second upper cylinder 107. A support frame 110 is installed above the workbench 10, and the upper power source 109 is installed on the support plate of the support frame 110.

[0038] A layer of bending die 104 is installed on both sides below the upper stop plate 102, and a second layer of bending die 105 located outside the first layer of bending die 104 is also installed below the upper die base 101. The bottom surface of the upper die base 101 is provided with a die base 103 connected to the top of the second layer of bending die 105.

[0039] The lower die mechanism 2 includes a lower die base 201, a lower stop plate 202 installed above the lower die base 201 through a lower cylinder 207, the lower die base 201 is installed above the workbench 10, the lower cylinder 207 is installed between the workbench 10 and the lower die base 201, and the push rod of the lower cylinder 207 extends through to the top of the lower die base 201. A feeding support plate 203 with two sides extending to the outside of the lower stop plate 202 is installed above the lower stop plate 202, and the upper stop plate 102, the pressing plate 108 and the feeding support plate 203 are all equivalent to the shape of the triangular center plate 200 of the bending plate 100.

[0040] Bending swing blocks 204 are hingedly installed on both sides of the lower stop plate 202, and the inner side of the bending swing block 204 is connected to the lower die base 201 through a compression spring 205;

[0041] The positioning and feeding mechanism 3 includes a limit plate 301 installed on the surface of the lower die seat 201 and located on the outside of the corresponding two-layer bending die 105, and a conveying plate 302 installed on one side of the lower die mechanism 2 and driven to reciprocate by a reciprocating cylinder (not shown in the figure). The limit plate 301 is used to limit the extensions 300 on both sides of the bending plate 100 after positioning. The feeding support plate 203 is vertically lifted and slidably installed on the inner side of the conveying plate 302. The inner side wall of the conveying plate 302 located above the surface of the feeding support plate 203 constitutes an extrusion surface 303 for extruding the side wall of the bending plate 100. Specifically:

[0042] A stacking barrel 304 for stacking a plurality of the bending plates 100 is provided above the workbench 10, and the lower surface of the stacking barrel 304 is flush with the upper surface of the conveying plate 302, so that when the conveying plate 302 is located directly below the stacking barrel 304, the bending plates 100 inside the stacking barrel 304 will not be transferred with the relative movement of the conveying plate 302. The upper surface of the conveying plate 302 is made of smooth stainless steel, thereby reducing the scraping of the conveying plate 302 on the bottom of the bending plate 100.

[0043] A vertical guide groove 306 is provided on the inner side of the conveying plate 302, and the connecting block on the inner side of the feeding support plate 203 is slidably installed in the vertical guide groove 306. The bottom surface of the connecting block on the inner side of the feeding support plate 203 is connected to the bottom of the vertical guide groove 306 by a reset spring 312. When the feeding support plate 203 runs to the top along the vertical guide groove 306, the vertical distance between the upper surface of the feeding support plate 203 and the upper surface of the conveying plate 302 is equal to the thickness of the bending plate 100. This ensures that each time the feeding support plate 203 is located directly below the stacking barrel 304, only one bending plate 100 falls from the bottom surface of the stacking barrel 304 to be transferred to the feeding support plate 203.

[0044] In order to facilitate the automatic unloading of the bent plate 100 after stamping is completed, an open groove 308 is opened on the workbench 10 located between the lower mold mechanism 2 and the stacking barrel 304, and a material receiving box 309 is arranged below the open groove 308, and a material baffle plate 307 is arranged above the open groove 308. The surface height of the material baffle plate 307 is located below the horizontal height of the bottom surface of the feeding support plate 203, and is located above the horizontal height of the bottom surface of the three-fold section 33 of the bent plate 100 placed on the feeding support plate 203 after being bent. In this way, it can be ensured that the material baffle plate 307 can block one side of the three-fold section 33 of the bent plate 100 after stamping is completed.

[0045] A clearance groove 311 which can horizontally cross the baffle plate 307 is horizontally opened in the middle of the conveying plate 302, and a connecting rod 310 with one end connected to the baffle plate 307 is arranged inside the clearance groove 311, and the other end of the connecting rod 310 is connected to the workbench 10 outside the conveying plate 302, so that the baffle plate 307 will not hinder the movement of the feeding support plate 203 and the conveying plate 302.

[0046] Among them, the dust suction mechanism 4 includes an airbag 401 installed between the lower surface of the support plate of the support frame 110 and the upper mold base 101, the bottom plate of the airbag 401 is connected to the lower surface of the support plate of the support frame 110, and the top plate of the airbag 401 is connected to the upper surface of the upper mold base 101. The airbag 401 is connected to a first suction pipe 403 connected to a first dust suction port 402 and a second suction pipe 405 connected to a second dust suction port 404. The first dust suction port 402 is arranged on the bottom surface of the first layer of bending die 104, and the second dust suction port 404 is arranged on the bottom surface of the second layer of bending die 105. The airbag 401 is also connected to an exhaust pipe 406, and a one-way feed valve 407 is arranged on the first suction pipe 403 and the second suction pipe 405, and a one-way discharge valve 408 is arranged on the exhaust pipe 406.

[0047] The working principle of the device of the present invention:

[0048] 1. Loading:

[0049] The stacked bent plates 100 are placed in a limited position in the stacking barrel 304 , and the cross-sectional area of ​​the stacking barrel 304 is slightly larger than the cross-sectional area of ​​the bent plates 100 , so that the bent plates 100 can be easily placed in.

[0050] In the initial state, the feeding support plate 203 connected to the inner side of the conveying plate 302 is located directly below the stacking barrel 304 , and the bending plate 100 located at the bottom of the stacking barrel 304 falls onto the surface of the feeding support plate 203 .

[0051] At the same time, in the initial state, the top rod of the lower cylinder 207 is in an extended state, and the lower stop plate 202 connected to the top of the lower cylinder 207 leaves the surface of the lower die base 201. Under the elastic force of the compression spring 205, the bending pendulum block 204 rotates along the hinge shaft 206 until the bending pendulum block 204 is in a vertical state, that is, the far end of the bending pendulum block 204 is supported on the surface of the lower die base 201.

[0052] During the feeding process, the reciprocating cylinder drives the conveying plate 302 and the feeding support plate 203 connected to its front end to move toward one side of the lower mold mechanism 2, so that the feeding support plate 203 moves to the top of the lower stop plate 202, and the extensions 300 to be bent on both sides of the front end of the bending plate 100 carried on the feeding support plate 203 first contact the limiting plates 301, and the bending plate 100 is gradually guided by the two limiting plates 301 under the extrusion effect of the extrusion surface 303 of the conveying plate 302 on the proximal side of the bending plate 100, so that the bending plate 100 is accurately positioned and fed to the stamping position. That is, the triangular center plate 200 of the bending plate 100 is directly opposite to the feeding support plate 203 carrying it. Since the three sides of the positioned bending plate 100 are respectively limited by the limiting plates 301 and the extrusion surface 303, the horizontal position will not be displaced, thereby improving the accuracy of subsequent stamping.

[0053] 2. Positioning bending:

[0054] Afterwards, see Figure 5 As shown, the upper power source 109 drives the upper die seat 101 downward, the pressure plate 108 presses the triangular center plate 200 of the bending plate 100 above the feeding support plate 203, and a layer of bending die 104 is facing a bending section 31 to be bent, thereby pressing the surface of the bending plate 100 to be stamped.

[0055] Next, the upper power source 109 drives the upper die holder 101 to move downward further, the pressing plate 108 and the feeding support plate 203 at the lower end thereof remain stationary, and the upper die holder 101 and the upper stop plate 102 connected thereto and a layer of bending dies 104 on both sides thereof move downward relative to the pressing plate 108, so that the folding segments 31 on both sides of the triangular center plate 200 are pressed downward by the layer of bending dies 104 to form the first bend;

[0056] After the first bend of the first folding section 31 is in place, the upper power source 109 drives the upper die seat 101 to further move downward. The force of the upper power source 109 is greater than the upward force of the lower cylinder 207. The upper die mechanism 1 presses the feeding support plate 203 downward along the vertical guide groove 306 on one side of the conveying plate 302. The lower stop plate 202 below the feeding support plate 203 also moves downward. The lower ends of the bending pendulum blocks 204 hingedly installed on both sides of the lower stop plate 202 rotate outward along the hinge shaft 206 and rotate to a horizontal state. At this time, the inner upper surface of the bending pendulum block 204 is limited by the outer eaves of the upper feeding support plate 203. The outer upper surface of the bending pendulum block 204 causes the second folding section 32 to fold horizontally for the second bend.

[0057] When the lower stop plate 202 moves to the dead point on the surface of the lower die base 201, the upper die base 101 moves downward further, the second-layer bending die 105 moves downward relative to the first-layer bending die 104, and the three-folding section 33 in a horizontal state presses down to bend the third bend, and the machine tool reaches the lower dead point. Thus, the three Z-shaped bends of the extension part 300 of the bending plate 100 are completed.

[0058] 3. Cutting:

[0059] The upper die mechanism 1 and the lower die mechanism 2 are reset, and the reciprocating cylinder drives the conveying plate 302 and the connected feeding support plate 203 to move outward, and the three-fold section 33 of the bent plate 100 on the feeding support plate 203 will vertically extend below the bottom surface of the feeding support plate 203, so it will be stopped when it encounters the blocking plate 307, and the feeding support plate 203 is pulled away from the bottom surface of the bent plate 100, and the stamped bent plate 100 falls along the opening groove 308 to the receiving box 309 below. The above steps are repeated until all the bent plates 100 in the stacking barrel 304 are stamped.

[0060] During the stamping process, as the upper die base 101 moves downward, the distance between the upper die base 101 and the support plate of the support frame 110 gradually increases, the volume of the airbag 401 increases, and negative pressure is formed inside. During the stamping process, suction will be generated at the first dust suction port 402 and the second dust suction port 404 in turn, and the dust generated during the stamping of the first bending process by the first layer of the bending die 104 relative to the first folding segment 31 and the dust formed during the stamping of the second layer of the bending die 105 relative to the third folding segment 33 during the third bending will be absorbed away. During the resetting of the upper die base 101, the dust in the airbag 401 will be squeezed and concentrated along the exhaust pipe 406 for treatment.

[0061] The device of the present invention cooperates with the upper mold mechanism 1, the lower mold mechanism 2, the positioning and feeding mechanism 3 and the dust suction mechanism 4. In the process of driving the feeding support plate 203 carrying the bending plate 100 to run above the lower stop plate 202 of the lower mold mechanism 2, the bending plate 100 can be accurately positioned and fed to the stamping position; through the mutual cooperation of the first-layer bending die 104, the second-layer bending die 105 and the bending swing block 204, the Z-shaped bending of the bending plate 100 can be completed through a set of molds, which not only simplifies the device but also improves the stamping efficiency of the bending plate 100; and in the stamping process, the negative pressure formed can also adsorb the debris formed at the stamping position, so as to avoid the negative pressure formed in the subsequent stamping process disturbing the debris, thereby improving the stamping quality of the product; in the process of resetting the positioning and feeding mechanism 3, the bending plate 100 after the stamping can be automatically unloaded, which improves the positioning of the triangular bending plate and the Z-shaped bending efficiency of the extension parts on both sides as a whole.

[0062] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A Z-shaped bending die structure, Features: The invention comprises a die mechanism (1) and a workbench (10), wherein the die mechanism (1) comprises an upper die base (101) driven to rise and fall by an upper power source (109), an upper stop plate (102) installed below the upper die base (101) via a first upper cylinder (106), and a pressure plate (108) installed below the upper stop plate (102) via a second upper cylinder (107), a layer of bending die (104) being installed on both sides below the upper stop plate (102), and a second layer of bending die (105) being located outside the first layer of bending die (104) being installed below the upper die base (101); A lower die mechanism (2), comprising a lower die base (201), a lower stop plate (202) mounted above the lower die base (201) via a lower cylinder (207), a feeding support plate (203) with two sides extending to the outside of the lower stop plate (202) mounted above the lower stop plate (202), a bending swing block (204) hingedly mounted on both sides of the lower stop plate (202), and an inner side of the bending swing block (204) connected to the lower die base (201) via a compression spring (205); A positioning and feeding mechanism (3), comprising a limiting plate (301) mounted on the surface of the lower die base (201) and located on the outside of the corresponding second-layer bending die (105), and a conveying plate (302) mounted on one side of the lower die mechanism (2) and driven by a reciprocating cylinder to reciprocate, the limiting plate (301) being used to limit the extensions (300) on both sides of the bent plate (100) after positioning, the feeding support plate (203) being vertically lifted and slidably mounted on the inner side of the conveying plate (302), and the inner side wall of the conveying plate (302) located above the surface of the feeding support plate (203) constituting an extrusion surface (303) for extruding the side wall of the bent plate (100); A vertical guide groove (306) is provided on the inner side of the conveying plate (302), and a connecting block on the inner side of the feeding support plate (203) is slidably installed in the vertical guide groove (306). The bottom surface of the connecting block on the inner side of the feeding support plate (203) and the bottom of the vertical guide groove (306) are connected via a return spring (312). When the feeding support plate (203) moves to the uppermost position along the vertical guide groove (306), the vertical distance between the upper surface of the feeding support plate (203) and the upper surface of the conveying plate (302) is equal to the thickness of the bending plate (100); The lower die base (201) is installed above the workbench (10), and a stacking cylinder (304) for stacking a plurality of the bending plates (100) with a limited position is arranged above the workbench (10), the lower surface of the stacking cylinder (304) is flush with the upper surface of the conveying plate (302), and the upper surface of the conveying plate (302) is made of smooth stainless steel; An open groove (308) is provided on the workbench (10) located between the lower mold mechanism (2) and the stacking barrel (304), a material receiving box (309) is provided below the open groove (308), a material baffle plate (307) is provided above the open groove (308), the surface height of the material baffle plate (307) is located below the horizontal height of the bottom surface of the feeding support plate (203), and is located above the horizontal height of the bottom surface of the three-fold section (33) of the bending plate (100) after being bent on the feeding support plate (203), a clearance groove (311) capable of horizontally crossing the material baffle plate (307) is horizontally provided in the middle part of the conveying plate (302), a connecting rod (310) with one end connected to the material baffle plate (307) is provided inside the clearance groove (311), and the other end of the connecting rod (310) is connected to the workbench (10) outside the conveying plate (302).

2. A Z-shaped bending mold structure according to claim 1, Features: The lower cylinder (207) is installed between the workbench (10) and the lower die base (201), and the push rod of the lower cylinder (207) extends through and to the top of the lower die base (201). A support frame (110) is also installed above the workbench (10), and the upper power source (109) is installed on the support plate of the support frame (110).

3. A Z-shaped bending mold structure according to claim 2, Features: The invention also comprises a dust suction mechanism (4), wherein the dust suction mechanism (4) comprises an air bag (401) installed between the lower surface of the support plate of the support frame (110) and the upper mold base (101), the bottom plate of the air bag (401) is connected to the lower surface of the support plate of the support frame (110), the top plate of the air bag (401) is connected to the upper surface of the upper mold base (101), and the air bag (401) is connected to a first suction pipe (403) connected to a first dust suction port (402) and a second suction pipe (403) connected to a second dust suction port (402). The second suction pipe (405) of the dust port (404), the first dust port (402) is arranged on the bottom surface of the first layer of the bending die (104), the second dust port (404) is arranged on the bottom surface of the second layer of the bending die (105), the air bag (401) is also connected to an exhaust pipe (406), the first suction pipe (403) and the second suction pipe (405) are provided with a one-way feed valve (407), and the exhaust pipe (406) is provided with a one-way discharge valve (408).

4. A Z-shaped bending mold structure according to claim 1, Features: The bottom surface of the upper die seat (101) is provided with a die base (103) connected to the top of the second-layer bending die (105).

5. The Z-shaped bending mold structure according to claim 1, Features: The upper stop plate (102), the material pressing plate (108) and the material feeding support plate (203) are all of the same shape as the triangular center plate (200) of the bending plate (100).

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