Novel die material returning structure

Abstract

The utility model discloses a novel die material returning structure which comprises a bottom plate, a stress plate fixed at the upper end of the bottom plate, a mounting plate fixed at the upper end of the stress plate, a die plate clamped at the upper end of the mounting plate, a floating positioning block slidably connected at the left side of the die plate, parts placed at the upper ends of the floating positioning block and the die plate, and a supporting plate fixed at the left side of the upper end of the bottom plate, an air cylinder is fixed to the upper end of the supporting plate, the telescopic end of the air cylinder is connected with a material returning block, guide plates fixedly connected with the supporting plate are arranged at the front end and the rear end of the material returning block correspondingly, a downward-pressing inclined wedge is arranged on the lower side of the right end of the material returning block, a stress inclined wedge is arranged on the left side of the upper end of the floating positioning block, and the downward-pressing inclined wedge corresponds to the stress inclined wedge. Two symmetrical positioning blocks are arranged on the front portion and the rear portion of the upper end of the floating positioning block, a fixing hole is formed in a part, the positioning blocks correspond to the fixing hole in the part, and the device is suitable for the production process that part of parts are difficult to take or cannot be taken after being formed.

Description

Technical Field

[0001] This utility model relates to the field of mold ejection technology, specifically a novel mold ejection structure. Background Technology

[0002] Stamping is a forming process that uses a press and dies to apply external force to sheet metal, strip, tube, and profiles, causing plastic deformation or separation to obtain workpieces (stamped parts) of the desired shape and size. The stamping process requires the cooperation of an upper and lower die to extrude and shape the workpiece.

[0003] In the normal parts manufacturing process, the material can be removed from one direction after forming. However, this type of hinge mold requires the part to be positioned and held tightly to the mold after forming, so it needs to be removed from the mold from two directions after forming, which causes jamming. The positioning needs to be removed first before the material can be removed, which is a cumbersome process. Utility Model Content

[0004] To address the above problems, this utility model provides a novel mold ejection structure, thus solving the aforementioned issues.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel mold ejection structure, comprising a base plate, a force-bearing plate fixed to the upper end of the base plate, an mounting plate fixed to the upper end of the force-bearing plate, a template snapped onto the upper end of the mounting plate, a floating positioning block slidably connected to the left side of the template, a part placed on the upper end of the floating positioning block and the template, a support plate fixed to the upper left side of the base plate, a cylinder fixed to the upper end of the support plate, an ejection block connected to the telescopic end of the cylinder, guide plates fixedly connected to the support plate at both the front and rear ends of the ejection block, a downward pressing wedge opened on the lower right side of the ejection block, a force-bearing wedge opened on the upper left side of the floating positioning block, the downward pressing wedge corresponding to the force-bearing wedge, two symmetrical positioning blocks opened at the front and rear of the upper end of the floating positioning block, a fixing hole opened on the part, and the positioning block corresponding to the fixing hole on the part.

[0006] Preferably, the upper end of the mounting plate is provided with a fixing groove, the template is snapped into the fixing groove, the floating positioning block is snapped into the fixing groove, and a spring is fixed at the lower end of the floating positioning block, the spring being located in the fixing groove.

[0007] Preferably, a limiting groove is provided at the left end of the template, and a limiting strip is fixed at the right end of the floating positioning block. The limiting strip corresponds to the limiting groove, and the floating positioning block is slidably connected to the template through the limiting strip and the limiting strip.

[0008] Preferably, the thickness of the positioning block is the same as the thickness of the part, and the thickness of the downward pressing wedge of the ejector block is greater than the thickness of the part.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] 1. By setting up this device, when the existing equipment punch press completes one stroke and runs to the top dead center, the mold is in the open state, the cylinder is opened, the ejector block moves forward, the ejector block first contacts the floating positioning block, and the downward pressure wedge and the force wedge make the floating positioning block move downward while the positioning pin is also disengaged from the part. The ejector block continues to move forward to push the part forward to complete the ejection.

[0011] 2. By setting limit bars, when the spring pushes the floating positioning block upward, it effectively prevents the floating positioning block from sliding out of the limit bars and lifting the part. At the same time, the spring lifts the floating positioning block back to its original position, which facilitates the cyclic operation of the device. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a front view schematic diagram of the present utility model;

[0014] Figure 3 This is an exploded view of the present invention;

[0015] Figure 4 This is a schematic diagram of the material removal process of this utility model.

[0016] The diagram shows the following labels: 1. Base plate; 2. Load-bearing plate; 3. Mounting plate; 4. Support plate; 5. Cylinder; 6. Guide plate; 7. Unloading block; 8. Floating positioning block; 9. Template; 10. Part; 31. Fixing groove; 32. Spring; 71. Downward pressing wedge; 81. Load-bearing wedge; 82. Positioning block; 83. Limiting strip; 91. Limiting groove. Detailed Implementation

[0017] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0018] Please see Figure 1 , Figure 2 and Figure 3A novel mold ejection structure includes a base plate 1, a force-bearing plate 2 fixed to the upper end of the base plate 1, and an mounting plate 3 fixed to the upper end of the force-bearing plate 2. The mounting plate 3 fixes the template 9 to prevent it from shaking. The template 9 is engaged with the upper end of the mounting plate 3, and the template 9 supports the part 10. When stamping the part 10, the template 9 pushes against the part 10 to prevent it from moving downwards, thus achieving stamping and forming of the part 10. A floating positioning block 8 is slidably connected to the left side of the template 9. The floating positioning block 8 is used to fix the part 10 to prevent it from shifting during stamping. The part 10 is placed on the upper end of the floating positioning block 8 and the template 9. A support plate 4 is fixed to the upper left side of the base plate 1. A cylinder 5 is fixed to the upper end of the support plate 4. An ejection block 7 is connected to the telescopic end of the cylinder 5. The front and rear ends of the ejection block 7 are provided with guide plates 6 fixedly connected to the support plate 4. The two guide plates 6 clamp the ejector block 7, limiting its movement and allowing it to move only in a straight line. This facilitates the ejection of part 10 from the floating positioning block 8 and the template 9, thus achieving the ejection of part 10. The ejector block 7 has a downward pressing wedge 71 on its lower right side, and the floating positioning block 8 has a force-bearing wedge 81 on its upper left side. The downward pressing wedge 71 corresponds to the force-bearing wedge 81. The floating positioning block 8 has two symmetrical positioning blocks 82 at its upper front and rear. The part 10 has a fixing hole, and the positioning blocks 82 correspond to the fixing holes on the part 10. After the part 10 is stamped, it is in an open state. When the cylinder 5 is opened, the ejector block 7 moves forward. The ejector block 7 first contacts the floating positioning block 8. The downward pressing wedge 71 and the force-bearing wedge 81 cause the floating positioning block 8 to move downward while the positioning blocks 82 disengage from the part 10. The ejector block 7 continues to move forward, pushing the part 10 forward to complete the ejection.

[0019] Please see Figure 1 , Figure 3 and Figure 4The mounting plate 3 has a fixing groove 31 at its upper end. The template 9 is engaged in the fixing groove 31, and the floating positioning block 8 is engaged in the fixing groove 31. A spring 32 is fixed at the lower end of the floating positioning block 8, and the spring 32 is located in the fixing groove 31. The fixing groove 31 engages the floating positioning block 8 and the template 9, limiting their left and right movement to prevent them from wobbling during stamping of the part 10, which would reduce the pass rate of the part 10. A limit groove 91 is provided at the left end of the template 9, and a limit strip 83 is fixed at the right end of the floating positioning block 8. The limit strip 83 corresponds to the limit groove 91. The floating positioning block 8 is slidably connected to the template 9 through the limit strip 83 and the limit groove 91. The limit strip 83 and the limit groove 91 are provided so that the spring 32 pushes against the floating positioning block. When the 8 moves upward, it effectively prevents the floating positioning block 8 from sliding out of the limiting groove 91, lifts the part 10, and at the same time, the spring 32 lifts the floating positioning block 8 back to its original position, which facilitates the cyclic operation of the device. The thickness of the positioning block 82 is the same as the thickness of the part 10, and the thickness of the downward pressing wedge 71 of the ejector block 7 is greater than the thickness of the part 10. By setting the thickness of the positioning block 82 to be the same as the thickness of the part 10, it is easy for the positioning block 82 to be engaged with the positioning hole of the part 10, preventing the positioning block 82 from protruding from the positioning hole and affecting the stamping. At the same time, the thickness of the downward pressing wedge 71 is greater than the thickness of the part 10, which is easy to press the floating positioning block 8 down, and make the depth of the downward pressing of the floating positioning block 8 greater than the thickness of the part 10, so that the positioning block 82 can be disengaged from the fixing hole of the part 10, and the part 10 is pushed out by the cylinder 5 and the ejector block 7.

[0020] When using this utility model:

[0021] After part 10 is stamped, part 10 is in the open state. The cylinder 5 is started to work. The cylinder 5 extends and drives the ejector block 7 to move forward. The downward pressing wedge 71 of the ejector block 7 first contacts the force-receiving wedge 81 of the floating positioning block 8. The downward pressing wedge 71 and the force-receiving wedge 81 cause the floating positioning block 8 to move downward. The floating positioning block 8 moves down and compresses the spring 32. At the same time as the floating positioning block 8 moves down, the positioning block 82 also disengages from part 10. The ejector block 7 continues to move forward and pushes part 10 forward to complete the ejection. The cylinder 5 retracts, and the spring 32 pushes the floating positioning block 8 upward, so that the positioning block 82 enters the fixing hole of another part 10.

[0022] 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 alterations 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 novel mold ejection structure, characterized in that: Includes a base plate (1), with a force-bearing plate (2) fixed to the upper end of the base plate (1), and an mounting plate (3) fixed to the upper end of the force-bearing plate (2). A template (9) is snapped onto the upper end of the mounting plate (3), and a floating positioning block (8) is slidably connected to the left side of the template (9). A part (10) is placed on the upper end of the floating positioning block (8) and the template (9). A support plate (4) is fixed to the upper left side of the base plate (1), and a cylinder (5) is fixed to the upper end of the support plate (4). A material ejection block (7) is connected to the telescopic end of the cylinder (5). The front and rear ends of the ejector block (7) are provided with guide plates (6) that are fixedly connected to the pallet (4). The lower right side of the ejector block (7) is provided with a downward pressing wedge (71). The upper left side of the floating positioning block (8) is provided with a force-bearing wedge (81). The downward pressing wedge (71) corresponds to the force-bearing wedge (81). The upper end of the floating positioning block (8) has two symmetrical positioning blocks (82) at the front and rear. The part (10) is provided with a fixing hole. The positioning block (82) corresponds to the fixing hole on the part (10).

2. The novel mold ejection structure according to claim 1, characterized in that: The upper end of the mounting plate (3) is provided with a fixing groove (31), the template (9) is snapped into the fixing groove (31), the floating positioning block (8) is snapped into the fixing groove (31), and the lower end of the floating positioning block (8) is fixed with a spring (32), the spring (32) is located in the fixing groove (31).

3. The novel mold ejection structure according to claim 1, characterized in that: The template (9) has a limiting groove (91) on its left end, and the floating positioning block (8) has a limiting strip (83) fixed on its right end. The limiting strip (83) corresponds to the limiting groove (91), and the floating positioning block (8) is slidably connected to the template (9) through the limiting strip (83) and the limiting groove (91).

4. The novel mold ejection structure according to claim 1, characterized in that: The thickness of the positioning block (82) is the same as the thickness of the part (10), and the thickness of the material ejection block (7) at the downward pressing wedge (71) is greater than the thickness of the part (10).

Images