A buckle product compression mold

Abstract

This utility model provides a snap-fit ​​product pressing mold, including a lower mold and an upper mold connected by guide pillars; the lower mold includes a lower mold base, a lower mounting base, a support shaping block, and several limiting blocks; the lower mounting base is fixed on the lower mold base; the support shaping block is fixed on the lower mounting base; an arc-shaped shaping groove is formed in the middle of the support shaping block; a first elastic ejector pin assembly is installed in the shaping groove; several limiting blocks are installed on the lower mounting base and distributed on the outer periphery of the support shaping block; the upper mold includes an upper mold base, an upper mounting base, a connecting base, and a limiting block. The forming strip consists of an upper mounting base fixed to the bottom of the upper mold base, a connecting base fixed to the lower rear of the upper mounting base, and a rear end of the forming strip that can rotate around the X-axis and is connected to the connecting base via a rotating shaft. The forming strip includes an elliptical cross-section strip and a protrusion formed on the upper end of the strip. A limiting bevel is provided at the upper rear corner of the protrusion. The forming strip is in an inclined state when not subjected to external force and in a horizontal state when subjected to an upward force. This design can efficiently and accurately complete the stamping process of buckle products and facilitate the loading and unloading of materials.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, and in particular to a snap-fit ​​product pressing die. Background Technology

[0002] Currently, there is a buckle product that, after being pre-formed by stamping in the preceding process, still needs to be pressed and bent by a shaping strip to form its buckle structure. For this process, there is a common problem of inconvenience in picking up and putting down materials. The positioning of the material in the mold before forming is unstable, and the material is difficult to remove after forming, resulting in low processing efficiency. Therefore, improvements are needed. Utility Model Content

[0003] The purpose of this invention is to provide a snap-fit ​​product pressing mold to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A snap-fit ​​product pressing mold includes a lower mold and an upper mold connected by guide pillars; the lower mold includes a lower mold base, a lower mounting base, a support shaping block, and several limiting blocks; the lower mounting base is fixed on the lower mold base; the support shaping block is fixed on the lower mounting base; an arc-shaped shaping groove is formed in the middle of the support shaping block; a first elastic ejector pin assembly is installed in the shaping groove; several limiting blocks are installed on the lower mounting base and distributed on the outer periphery of the support shaping block; the upper mold includes an upper mold base, an upper mounting base, a connecting base, and a shaping pressure strip; the upper mounting base is fixed to the bottom of the upper mold base; The connecting seat is fixed to the lower rear part of the upper mounting seat; the rear end of the shaping strip is rotatably connected to the connecting seat via a rotating shaft around the X-axis; the shaping strip includes a strip with an elliptical cross-section and a protrusion formed on the upper end of the strip; the upper rear corner of the protrusion is provided with a limiting inclined surface; when the shaping strip is not subjected to external force, the limiting inclined surface abuts against the connecting seat, so that the shaping strip is in a state of tilting from the upper rear to the lower front; when the middle front part of the shaping strip is subjected to an upward force, the upper rear end of the protrusion abuts against the connecting seat, so that the shaping strip is in a horizontal state.

[0006] In a further description of this utility model, the lower mounting base includes a lower pad and a lower clamping plate; the lower pad and the lower clamping plate are fixed to the lower mold base from bottom to top.

[0007] Further description of this utility model: the first elastic ejector assembly includes a first ejector pin and a first spring; the upper end of the first ejector pin is provided with a positioning boss for extending into a strip-shaped hole in the workpiece; the lower rear part of the first ejector pin is provided with a limiting platen; the middle part of the shaping groove is provided with a sliding hole for the first ejector pin to slide up and down; the sliding hole is provided with a limiting groove that slides with the limiting platen; the first spring is installed between the first ejector pin and the lower mold base, and is used to push the first ejector pin to move upward.

[0008] In a further description of the present invention, the lower mold further includes a second elastic ejector pin assembly; the second elastic ejector pin assembly is mounted on the lower mounting base and located in front of the support shaping block; the second elastic ejector pin assembly includes a second ejector pin and a second spring; the second ejector pin is movably mounted between the lower pad and the lower clamping plate, with its upper end extending above the lower pad; the second spring is mounted between the second ejector pin and the lower mold base, and is used to push the second ejector pin upward.

[0009] Further description of this utility model: the limiting block is divided into a left limiting block, a right limiting block, a front limiting block and a rear limiting block; the upper end of the limiting block is provided with a feeding guide slope on the side near the supporting shaping block; two front limiting blocks and two rear limiting blocks are provided and distributed left and right.

[0010] In a further description of this utility model, the upper mounting base includes an upper pad and an upper clamping plate; the upper pad and the upper clamping plate are fixed to the bottom of the upper mold base from top to bottom; the bottom of the upper clamping plate is provided with a clearance groove for clearing the workpiece.

[0011] In a further description of the present invention, the upper mold also includes an upper pressure block; the upper pressure block is fixed to the bottom of the upper mounting base and located above the front part of the shaping pressure strip.

[0012] In a further description of this utility model, four first limiting posts are fixed on the lower mold base and arranged at the four corners; and a second limiting post corresponding to the position of the first limiting posts is fixed on the upper mold base.

[0013] The beneficial effects of this utility model are as follows:

[0014] This design places the workpiece to be processed on a support and shaping block. The support and shaping block, along with several limiting blocks around its periphery, support and position the workpiece. When the upper mold presses down, the shaping strip, in contact with the workpiece, experiences a reaction force, causing it to change from an inclined to a horizontal state. Continuing to press down, the shaping strip presses the workpiece into the shaping groove, forming the workpiece. After forming, the workpiece is wrapped around the shaping strip. During the upper mold reset process, the first elastic ejector pin assembly pushes the workpiece out of the shaping groove, preventing it from getting stuck. After reset, the shaping strip returns to its inclined state, allowing for quick and easy removal of the formed workpiece from the shaping strip. This design enables efficient and high-precision pressing and shaping of snap-fit ​​products. Attached Figure Description

[0015] Figure 1 This is an overall structural diagram of the present invention;

[0016] Figure 2 This is a structural diagram of the workpiece placed on the lower mold according to this utility model;

[0017] Figure 3 This is a structural diagram of the support and shaping block of this utility model;

[0018] Figure 4 This is a structural diagram of the first elastic ejector pin assembly and the second elastic ejector pin assembly of this utility model;

[0019] Figure 5 This is a structural diagram of the workpiece being shaped on the upper mold after mold closing, according to this utility model.

[0020] Figure 6 This is a structural diagram of the workpiece being shaped on the upper mold after the mold is opened according to this utility model;

[0021] Figure 7 This is a structural diagram of the shaping strip of this utility model. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings:

[0023] like Figure 1-7As shown, a snap-fit ​​product pressing mold includes a lower mold 1 and an upper mold 2 connected by guide pillars 3; the lower mold 1 includes a lower mold base 11, a lower mounting base 12, a support shaping block 13, and a plurality of limiting blocks 14; the lower mounting base 12 is fixed on the lower mold base 11; the support shaping block 13 is fixed on the lower mounting base 12; an arc-shaped shaping groove 131 is formed in the middle of the support shaping block 13; a first elastic ejector pin assembly 15 is installed in the shaping groove 131; a plurality of the limiting blocks 14 are installed on the lower mounting base 12 and distributed on the outer periphery of the support shaping block 13; the upper mold 2... The system includes an upper mold base 21, an upper mounting base 22, a connecting base 23, and a shaping pressure strip 24. The upper mounting base 22 is fixed to the bottom of the upper mold base 21. The connecting base 23 is fixed to the lower rear part of the upper mounting base 22. The rear end of the shaping pressure strip 24 is rotatably connected to the connecting base 23 via a rotating shaft 25 around the X-axis. The shaping pressure strip 24 includes a pressure strip 241 with an elliptical cross-section and a protrusion 242 formed on the upper end of the pressure strip 241. The upper rear corner of the protrusion 242 is provided with a limiting inclined surface 2421. In this design, the angle between the limiting inclined surface 2421 and the horizontal plane is 25°. When the shaping strip 24 is not subjected to external force, the limiting inclined surface 2421 abuts against the connecting seat 23, so that the shaping strip 24 is in an inclined state from the rear upper to the front lower; when the front middle part of the shaping strip 24 is subjected to an upward force, the rear upper end of the protrusion 242 abuts against the connecting seat 23, so that the shaping strip 24 is in a horizontal state; the workpiece 4 to be processed is placed on the supporting shaping block 13, and is supported and positioned by the supporting shaping block 13 and limited by several limiting blocks 14 on its outer periphery. When the upper mold 2 is pressed down, the shaping strip 24 abuts against the workpiece. The workpiece 4 is subjected to a reaction force, causing the shaping strip 24 to change from an inclined state to a horizontal state. As it continues to press down, the shaping strip 24 presses the workpiece 4 into the shaping groove 131, forming the workpiece 4. After the workpiece 4 is formed, it is wrapped around the shaping strip 24. During the resetting process of the upper mold 2, the first elastic ejector assembly 15 pushes the workpiece 4 out of the shaping groove 131 to prevent the workpiece 4 from getting stuck in the shaping groove 131. After resetting, the shaping strip 24 returns to its inclined state, and the formed workpiece 4 can be quickly removed from the shaping strip 24 by the operator. This design can complete the pressing and molding process of buckle products with high efficiency and high precision.

[0024] The lower mounting base 12 includes a lower pad 121 and a lower clamping plate 122; the lower pad 121 and the lower clamping plate 122 are fixed to the lower mold base 11 from bottom to top.

[0025] The first elastic ejector assembly 15 includes a first ejector pin 151 and a first spring 152. The upper end of the first ejector pin 151 is provided with a positioning boss 1511 for extending into the strip hole 41 of the workpiece 4, which improves the positioning accuracy of the workpiece 4 and prevents the workpiece 4 from shifting during processing. The lower rear part of the first ejector pin 151 is provided with a limiting platen 1512. The middle part of the shaping groove 131 is provided with a sliding hole 1311 for the first ejector pin 151 to slide up and down. The sliding hole 1311 is provided with a limiting groove 1311-1 that slides with the limiting platen 1512. The first spring 152 is installed between the first ejector pin 151 and the lower mold base 11 to push the first ejector pin 151 to move upward. The limiting platen 1512 cooperates with the limiting groove 1311-1 to prevent the first ejector pin 151 from coming out.

[0026] The lower mold 1 also includes a second elastic ejector assembly 16; the second elastic ejector assembly 16 is mounted on the lower mounting base 12 and located in front of the support shaping block 13; the second elastic ejector assembly 16 includes a second ejector pin 161 and a second spring 162; the second ejector pin 161 is movably mounted between the lower pad 121 and the lower clamping plate 122, with its upper end extending above the lower pad 121; the second spring 162 is mounted between the second ejector pin 161 and the lower mold base 11, and is used to push the second ejector pin 161 upward; during the pressing and molding process, the second elastic ejector assembly 16 is supported on the lower part of the front end of the shaping pressure strip 24 to improve stability. During a certain stroke of the reset process, the second elastic ejector assembly 16 pushes the shaping pressure strip 24, so that the shaping pressure strip 24 continues to maintain a horizontal state within the stroke range, which facilitates the workpiece 4 to leave the shaping groove 131.

[0027] The limiting block 14 is divided into a left limiting block 141, a right limiting block 142, a front limiting block 143 and a rear limiting block 144; the upper end of the limiting block 14 is provided with a feeding guide slope 1401 near the supporting shaping block 13; two front limiting blocks 143 and two rear limiting blocks 144 are provided and distributed on the left and right, and the feeding guide slope 1401 facilitates the placement of the workpiece 4.

[0028] The upper mounting base 22 includes an upper pad 221 and an upper clamping plate 222; the upper pad 221 and the upper clamping plate 222 are fixed to the bottom of the upper mold base 21 from top to bottom; the bottom of the upper clamping plate 222 is provided with a clearance groove 2221 for clearing the workpiece 4. During the pressing process, the clearance groove 2221 clears the workpiece 4 and avoids interference.

[0029] The upper mold 2 also includes an upper pressure block 26; the upper pressure block 26 is fixed to the bottom of the upper mounting base 22 and located above the front part of the shaping pressure strip 24. During the pressing process, when the shaping pressure strip 24 is in a horizontal state, the upper pressure block 26 touches the top position of the front end of the shaping pressure strip 24 to improve stability.

[0030] The lower mold base 11 is fixed with four first limiting posts 17 distributed at the four corners; the upper mold base 21 is fixed with second limiting posts 27 corresponding to the positions of the first limiting posts 17. During the pressing process, the second limiting post 27 stops pressing when it contacts the first limiting post 17, thus playing the function of limiting the pressing stroke.

[0031] The above description does not limit the technical scope of this invention. Any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this invention shall still fall within the scope of the technical solution of this invention.

Claims

1. A snap product compression mold comprising a lower mold and an upper mold connected by a guide pillar; characterized in that: The lower mold includes a lower mold base, a lower mounting base, a supporting shaping block, and several limiting blocks; the lower mounting base is fixed to the lower mold base; the supporting shaping block is fixed to the lower mounting base; an arc-shaped shaping groove is formed in the middle of the supporting shaping block; a first elastic ejector pin assembly is installed in the shaping groove; several limiting blocks are installed on the lower mounting base and distributed around the outer periphery of the supporting shaping block; the upper mold includes an upper mold base, an upper mounting base, a connecting base, and a shaping pressure strip; the upper mounting base is fixed to the bottom of the upper mold base; the connecting base is fixed to the upper mounting base. The lower rear part; the rear end of the shaping strip is rotatably connected to the connecting seat via a pivot shaft around the X-axis; the shaping strip includes a strip with an elliptical cross-section and a protrusion formed on the upper end of the strip; the upper rear corner of the protrusion is provided with a limiting inclined surface; when the shaping strip is not subjected to external force, the limiting inclined surface abuts against the connecting seat, so that the shaping strip is in a state of tilting from the upper rear to the lower front; when the middle front part of the shaping strip is subjected to an upward force, the upper rear end of the protrusion abuts against the connecting seat, so that the shaping strip is in a horizontal state.

2. The buckle product compression mold according to claim 1, wherein: The lower mounting base includes a lower pad and a lower clamping plate; the lower pad and the lower clamping plate are fixed to the lower mold base from bottom to top.

3. The buckle product compression mold according to claim 1, wherein: The first elastic ejector pin assembly includes a first ejector pin and a first spring; the upper end of the first ejector pin is provided with a positioning boss for extending into a strip hole in the workpiece; the lower rear part of the first ejector pin is provided with a limiting platen; the middle part of the shaping groove is provided with a sliding hole for the first ejector pin to slide up and down; the sliding hole is provided with a limiting groove that slides with the limiting platen; the first spring is installed between the first ejector pin and the lower mold base and is used to push the first ejector pin to move upward.

4. The buckle product press molding die according to claim 2, characterized in that: The lower mold also includes a second elastic ejector pin assembly; the second elastic ejector pin assembly is mounted on the lower mounting base and located in front of the support and shaping block; the second elastic ejector pin assembly includes a second ejector pin and a second spring; the second ejector pin is movably mounted between the lower pad and the lower clamping plate, with its upper end extending above the lower pad; the second spring is mounted between the second ejector pin and the lower mold base, and is used to push the second ejector pin upward.

5. The buckle product compression mold according to claim 1, wherein: The limiting block is divided into a left limiting block, a right limiting block, a front limiting block and a rear limiting block; the upper end of the limiting block is provided with a feeding guide slope on the side near the support shaping block; two front limiting blocks and two rear limiting blocks are provided and distributed on the left and right.

6. The buckle product compression mold according to claim 1, wherein: The upper mounting base includes an upper pad and an upper clamping plate; the upper pad and the upper clamping plate are fixed to the bottom of the upper mold base from top to bottom; the bottom of the upper clamping plate is provided with a clearance groove for clearing the workpiece.

7. The buckle product compression mold according to claim 1, wherein: The upper mold also includes an upper pressure block; the upper pressure block is fixed to the bottom of the upper mounting base and located above the front of the shaping pressure strip.

8. The buckle product compression mold according to claim 1, wherein: The lower mold base is fixed with four first limiting posts arranged at the four corners; the upper mold base is fixed with second limiting posts corresponding to the positions of the first limiting posts.

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