A progressive die and a die for manufacturing a caster bracket

Abstract

The utility model belongs to stamping die technical field especially relates to a continuous die and the die of manufacturing angle wheel support. Continuous die includes lower mould, includes: first mould core, first mould core sets up on lower mould, is provided with blanking groove on first mould core, and the stamping part falls in blanking groove and falls on lower mould; Second mould core, second mould core sets up on lower mould; Pushing plate, pushing plate sets up between first mould core and lower mould, and pushing plate pushes and sends the stamping part that falls on lower mould to second mould core through reciprocating movement; Driving device, driving device provides power for reciprocating motion of pushing plate. The utility model sets up driving device and promotes pushing plate, and the stamping part that falls from blanking groove is promoted to second mould core and processes, to reduce the die quantity required for production, improve production efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of stamping die technology, and in particular relates to a progressive die and a die for manufacturing corner wheel brackets. Background Technology

[0002] A progressive die is a multi-station stamping die in which material passes continuously through multiple stations in strip form, with each station completing a specific process. This die design allows the stamping process to proceed continuously, greatly improving production efficiency.

[0003] In progressive die stamping, the parts of the strip that are stamped are usually referred to as stamped parts or workpieces. These parts are processed step by step during the stamping process to eventually form the desired shape and size; the parts of the strip that move during the stamping process are usually referred to as carriers or strips.

[0004] In progressive die processing, the stamped part is attached to the strip and moved sequentially through each station until the last station separates the formed stamped part from the strip. Therefore, once separated from the strip, the stamped part cannot move to the next station. However, some parts require separation from the strip before further processing. In such cases, two sets of dies are needed, increasing both die manufacturing and maintenance costs. Furthermore, the need to transfer material between the two sets of dies negatively impacts production efficiency. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a progressive die and a mold for manufacturing corner wheel brackets. The progressive die can perform the next process on the same mold after the strip is separated from the stamped part, thereby reducing the number of molds required and improving production efficiency.

[0006] In a first aspect, this utility model provides a progressive die, the progressive die including a lower die, comprising:

[0007] The first mold core is set on the lower mold and has a blanking groove. The stamped part falls onto the lower mold along the blanking groove.

[0008] The second mold core is set on the lower mold;

[0009] The pusher plate is located between the first mold core and the lower mold. The pusher plate pushes the stamping part that falls on the lower mold onto the second mold core by reciprocating movement.

[0010] The drive unit provides power for the reciprocating motion of the pusher plate.

[0011] Optionally, a groove is provided at the end of the pusher plate that contacts the stamping part, and the groove fits into the stamping part.

[0012] Optionally, the driving device includes a power cylinder, the output end of which is fixedly connected to the pusher plate.

[0013] Optional, also includes:

[0014] A backing plate is placed on the lower mold. One end of the backing plate contacts the lower mold, and the other end contacts the ejector plate. The ejector plate is confined between the backing plate and the first mold core.

[0015] Optional, also includes:

[0016] A limiting plate is set on the lower mold or the pad. The limiting plate is set along the direction of movement of the pusher plate. One end of the limiting plate is in contact with the pusher plate. Multiple limiting plates are set on both sides of the pusher plate.

[0017] Optionally, the push plate is also equipped with a weight reduction groove.

[0018] Optionally, the second mold core is provided with forming holes.

[0019] Optionally, an ejector device is provided inside the forming hole to eject the formed stamped part.

[0020] Optionally, the second mold core is also provided with a discharge groove. The pusher plate pushes the stamping part to be formed to move. The stamping part to be formed impacts and pushes the formed stamping part into the discharge groove. The formed stamping part is discharged from the continuous mold through the discharge groove.

[0021] Secondly, this utility model provides a mold for manufacturing a corner wheel bracket, the mold being the aforementioned continuous mold.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] This invention uses a drive device to push a pusher plate, which pushes the stamped part that falls from the chute to the second mold core for processing; thereby reducing the number of molds required for production and improving production efficiency. Attached Figure Description

[0024] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0025] Figure 1 This is a perspective view of the present utility model;

[0026] Figure 2 This is a schematic diagram of the first mold core structure of this utility model;

[0027] Figure 3 This is a schematic diagram of the installation of the second mold core of this utility model;

[0028] Figure 4 This is a schematic diagram of the pusher plate and drive device of this utility model;

[0029] Figure 5 This is a schematic diagram of the second mold core structure of this utility model;

[0030] Figure 6 This is a schematic diagram of the ejection device structure of this utility model;

[0031] Figure 7 This is a schematic diagram of the installation of the ejection device of this utility model;

[0032] Figure 8 This is a perspective view of the corner wheel bracket of this utility model;

[0033] Figure 9 This is a schematic diagram of the stamped part of the corner wheel bracket after separation from the material strip according to this utility model.

[0034] In the diagram: 1. Lower mold; 11. Backing plate; 12. Limiting plate; 13. Mold base; 14. Mounting bracket; 15. Mounting plate; 2. First mold core; 21. Blanking groove; 3. Second mold core; 31. Forming hole; 32. Positioning component; 33. Discharge groove; 34. Positioning groove; 4. Push plate; 41. Slot; 42. Weight reduction groove; 5. Drive device; 6. Ejection device; 61. Elastic telescopic component; 62. Forming core; 63. Guide mechanism; 631. Guide rod; 632. Guide hole; 7. Upper mold. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0037] Example 1

[0038] refer to Figure 1-7 This utility model provides a progressive die, which has an upper die 7 and a lower die 1. The lower die 1 is provided with a first die core 2, and the first die core 2 is provided with a blanking groove 21. After the stamped part is separated from the strip, it enters the blanking groove 21 and falls onto the lower die 1 after passing through the blanking groove 21. The lower die 1 is also provided with a second die core 3, which cooperates with the corresponding die core on the upper die 7 to further process the stamped part.

[0039] The progressive die also includes a pusher plate 4, which has a drive device 5. The drive device 5 pushes the pusher plate 4 to reciprocate between a first position and a second position. In the first position, the pusher plate 4 is located on one side of the drop groove 21. In the second position, the pusher plate 4 is located on one side of or on the second mold core 3. Specifically, the initial position of the pusher plate 4 is at the first position. After starting, the pusher plate 4 moves from the first position to the second position. During this process, it contacts the stamping part that falls from the drop groove 21 onto the lower die 1 and pushes the stamping part to the second mold core 3. After the feeding is completed, the pusher plate 4 returns to the first position.

[0040] It should be noted that in this utility model, the stamped part is separated from the strip at the first mold core 2, that is, the first mold core 2 is the separation process. Before the separation process, one or more other processes can be set, such as punching, bending, stretching, flanging, punching, shaping, etc.

[0041] It should be noted that the first mold core 2 is fixed on the lower mold 1, and there is a gap between them.

[0042] It should be noted that the upper mold 7 should be provided with a mold core that mates with the first mold core 2 and the second mold core 3 at the corresponding position.

[0043] It should be noted that the processing performed at point 3 of the second mold core is not limited and can be any of the following: punching, bending, stretching, flanging, trimming, punching, shaping, stamping and compound stamping.

[0044] It should be noted that the lower mold 1 includes a mold base 13, a mounting bracket 14, and a mounting plate 15, wherein the mold base 13 is located at the bottom, the mounting bracket 14 is located between the mold base 13 and the mounting plate 15, and the mounting plate 15 is located at the top. The push plate 4 and the first mold core 2 are both located on the mounting plate 15; the second mold core 3 is mounted on the mounting bracket 14 and extends upward through the notch in the mounting plate 15.

[0045] As a preferred option, the direction of movement of the pusher plate 4 is perpendicular to the direction of movement of the material strip. With this method, the mold design structure is compact and the stroke of the pusher plate 4 is small.

[0046] As a preferred option, refer to Figure 4The drive device 5 is a power cylinder, and the output end of the power cylinder is fixedly connected to the push plate 4; the power cylinder is fixed on the lower mold 1.

[0047] It should be noted that the power cylinder can be any of the following: hydraulic cylinder, electric cylinder, or pneumatic cylinder.

[0048] It should be noted that the number of power cylinders connected to the same pusher plate 4 can be one or more.

[0049] It should be noted that the drive device 5 can also adopt other solutions, such as a cutter and a slider. In this case, the cutter is fixed on the upper mold 7, the slider is slidably connected to the lower mold 1, and the slider is equipped with a reset component so that the slider can return to its initial position; one end of the slider is fixedly connected to the push plate 4, and the contact surfaces of the slider and the cutter are both inclined surfaces, which can push the slider to move.

[0050] As a preferred option, refer to Figure 4 The push plate 4 has a groove 41 at the end that contacts the stamping part. The shape of the groove 41 can restrict the rotation of the stamping part to ensure that the stamping part can reach the second mold core 3 as set to complete the processing.

[0051] As a preferred option, refer to Figure 3 A pad 11 is also provided, which is attached to the lower mold 1. The pad 11 cooperates with the first mold core 2 to limit the upper and lower positions of the push plate 4, ensuring that the push plate 4 can push the stamping part.

[0052] As a further preferred option, refer to Figure 3 A limiting plate 12 is also provided, which is located on both sides of the pusher plate 4. The limiting plate 12 guides the pusher plate 4 to move in a predetermined direction, ensuring that the pusher plate 4 pushes the stamping part to the predetermined position.

[0053] It should be noted that the limiting plate 12 can be fixed on the lower mold 1 or on the pad 11.

[0054] It should be noted that there are multiple limit plates 12, and they are set along the direction of movement of the pusher plate 4.

[0055] It should be noted that guide rails and sliders can also be used to guide the movement of the pusher plate 4.

[0056] As a further preferred option, refer to Figure 4 A weight-reducing groove 42 is provided on the pusher plate 4 to reduce the weight of the pusher plate 4 and save materials.

[0057] It should be noted that the shape and number of the weight reduction grooves 42 are not limited. Their shape can be triangular, quadrilateral, pentagonal, hexagonal, circular, elliptical, etc., and their number can be one or more.

[0058] It should be noted that in this scheme, the weight reduction groove 42 runs through both the upper and lower ends of the pusher plate 4; in practice, the weight reduction groove 42 can also be recessed into the pusher plate 4 along one end of the pusher plate 4 (without running through the pusher plate 4).

[0059] As a preferred option, refer to Figure 3 , Figure 5 A forming hole 31 is provided on the second mold core 3 (i.e., the second mold core 3 is a concave mold). Correspondingly, a punch is provided on the upper mold 7 to cooperate with it. After the upper mold 7 and the lower mold 1 are closed, the stamped part is punched into the forming hole 31 by the punch to complete the processing.

[0060] As a further preferred option, refer to Figure 6 , Figure 7 An ejector device 6 is provided inside the forming hole 31, which can eject the formed stamped part upward out of the forming hole 31.

[0061] Specifically, the ejection device 6 includes an elastic telescopic member 61 (e.g., a nitrogen spring). One end of the elastic telescopic member 61 is fixed to the mounting bracket 14, and the other end is connected to the forming core 62 in the forming hole 31. When the mold is closed, the forming core 62 moves downward, so that the elastic telescopic member 61 is in a compressed state. After the upper mold 7 separates from the lower mold 1, the elastic telescopic member 61 restores its deformation and pushes the forming core 62 upward, thereby ejecting the completed stamping part out of the forming hole 31.

[0062] As a further step, refer to Figure 6 , Figure 7 The ejector device 6 is also provided with a guide mechanism 63, which includes a guide rod 631 and a guide hole 632. The guide hole 632 extends downward along the upper end of the mounting frame 14. One end of the guide rod 631 is fixed on the molding core 62, and the other end of the guide rod 631 is inserted into the guide hole 632 and slidably connected to the guide hole 632. The molding core 62 is guided to move vertically by sliding the guide rod 631 in the guide hole 632.

[0063] As a further step, refer to Figure 3 , Figure 5 The second mold core 3 is also provided with a positioning element 32. In this scheme, the positioning elements 32 are set in pairs and are L-shaped. The vertical surface of the positioning element 32 cooperates with the push plate 4 to limit the direction of movement of the stamping part. The second mold core 3 is also provided with a positioning groove 34. The push plate 4 pushes the stamping part into the positioning groove 34 to realize the positioning of the stamping part on the second mold core 3.

[0064] As a further step, refer to Figure 3 , Figure 5A discharge groove 33 is provided on the second mold core 3. After the stamping is completed, the ejector device 6 ejects the stamping part out of the forming hole 31. The pusher plate 4 pushes the stamping part to be processed toward the second mold core 3, so that the stamping part to be processed comes into contact with the stamping part after processing, pushes the stamping part after processing to move, and pushes the stamping part after processing into the discharge groove 33, and then discharges it from the continuous mold through the discharge groove 33; automatic material discharge is achieved in this way.

[0065] Example 2

[0066] The process of manufacturing the corner wheel bracket using the continuous mold of Example 1 is described in detail.

[0067] refer to Figure 1-9 After the material strip enters the mold, it goes through blanking, rib pressing, flanging, separation, pushing, forming, and discharge in sequence. Blanking includes blanking the center hole, blanking a pair of shaft holes and blanking the slot hole; rib pressing is to press out annular ribs concentric with the center hole; flanging is to stretch the material along the inner edge of the center hole circumferentially to form a vertical edge; separation is to press the stamped part into the blanking groove 21, so that the stamped part is separated from the material strip; pushing is to push the stamped part that has fallen on the lower die 1 into the positioning groove 34 of the second die core 3; forming is the process of the stamped part being formed in the forming hole 31. After forming is completed, it is ejected from the forming hole 31 by the ejector device 6 and pushed by the next stamped part to be processed to the discharge groove 33 to be discharged from the mold.

[0068] It should be noted that multiple processes can also be used to complete the punching process.

[0069] As a preferred option, this mold adopts a one-out-two structure design, which improves efficiency and the utilization rate of raw materials.

[0070] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A transfer mold comprising a lower mold (1), characterized in that, include: The first mold core (2) is set on the lower mold (1). The first mold core (2) is provided with a blanking groove (21). The stamped part falls onto the lower mold (1) along the blanking groove (21). The second mold core (3) is set on the lower mold (1); The push plate (4) is located between the first mold core (2) and the lower mold (1). The push plate (4) pushes the stamping parts that fall on the lower mold (1) onto the second mold core (3) by reciprocating movement. The drive device (5) provides power for the reciprocating motion of the pusher plate (4).

2. The transfer mold of claim 1 wherein, The pusher plate (4) has a slot (41) at the end that contacts the stamping part, and the slot (41) fits into the stamping part.

3. The transfer mold of claim 1 wherein, The drive unit (5) includes a power cylinder, the output end of which is fixedly connected to the pusher plate (4).

4. The transfer mold of claim 1 wherein, Also includes: A pad (11) is placed on the lower mold (1). One end of the pad (11) is in contact with the lower mold (1), and the other end of the pad (11) is in contact with the push plate (4). The push plate (4) is restricted between the pad (11) and the first mold core (2).

5. The transfer mold of claim 4 wherein, Also includes: Limiting plate (12) is set on the lower mold (1) or the pad (11). The limiting plate (12) is set along the direction of movement of the push plate (4). One end of the limiting plate (12) is in contact with the push plate (4). Multiple limiting plates (12) are respectively set on both sides of the push plate (4).

6. The continuous mold according to claim 5, characterized in that, The pusher plate (4) is also equipped with a weight reduction groove (42).

7. The transfer mold according to any one of claims 1 to 6, wherein The second mold core (3) is provided with a forming hole (31).

8. The transfer mold of claim 7 wherein, An ejector device (6) is provided inside the forming hole (31) to eject the formed stamped part.

9. The transfer mold of claim 8 wherein, The second mold core (3) is also provided with a discharge groove (33). The pusher plate (4) pushes the stamping part to be formed to move. The stamping part to be formed impacts and pushes the formed stamping part to fall into the discharge groove (33). The formed stamping part is discharged from the continuous mold through the discharge groove (33).

10. A mold for manufacturing a caster bracket, characterized by, The mold is a progressive mold as described in any one of claims 1-9.

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