Die set upper punch optimization structure
By adopting a guiding structure that combines a cylinder mounting plate with a mold frame guide post and an upper punch guide post in the powder forming press, and by setting a floating joint and a buffer air cushion on the upper punch cylinder output rod, the problem of upper mold punch plate jamming is solved, and the smooth lifting and lowering of the upper mold mechanism and the pressing effect are improved.
Patent Information
- Application Number
- CN202520238337.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-14
AI Technical Summary
In existing powder molding presses, the upper die punch plate and cylinder mounting plate are prone to misalignment when raised and lowered on the same guide column, which can lead to jamming and affect the product pressing effect.
The cylinder mounting plate is raised and lowered via the mold frame guide pillars, and the upper die punch plate is raised and lowered via the upper punch plate guide pillars. A floating joint is set on the upper punch cylinder output rod, and a buffer air cushion is added to absorb errors and avoid jamming.
This allows for smooth lifting and lowering of the upper die plate, preventing jamming and improving the pressing efficiency and product quality of the powder forming press.
Smart Images
Figure CN223890531U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to technical field more specifically, is related to a mould frame upper punch optimization structure. BACKGROUND
[0002] The existing powder forming press can continue to press the blank by adding the pressure maintaining structure on the mould frame when the mould is opened, so as to prevent the blank from cracking in the demoulding process due to the air in the blank, thereby improving the forming quality of the blank, such as the patent application number for the prior application of the applicant 202320355940.7, a mould frame structure with upper punch pressure maintaining function, which can continue to maintain the pressing effect on the blank by the upper punch of the upper die punch plate bottom driven by the pressure maintaining cylinder when the mould is opened, prolongs the pressing time of the blank and improves the pressing effect, but the mould frame structure still has the following deficiencies: Figure 1 And Figure 2 As shown in the drawings, the upper die punch plate 105 and the cylinder mounting plate 104 are installed on the same guide column 106, at this time the lifting of the upper die punch plate 105 and the lifting of the cylinder mounting plate 104 are on the same guide column, in the process of lifting the upper die punch plate 105 driven by the pressure maintaining cylinder 107, the upper die punch plate 105 and the cylinder mounting plate 104 may be offset to a certain extent, so that the upper die punch plate is easy to be stuck with the guide column, resulting in unsmooth lifting and affecting the pressing of the product. UTILITY MODEL CONTENTS
[0003] The utility model aims at overcoming the above-mentioned defects in the prior art, and provides a mould frame upper punch optimization structure which can avoid the upper die punch plate from being easily stuck and make the lifting of the upper die mechanism of the powder forming press more smooth.
[0004] In order to achieve the above-mentioned purpose, the utility model provides a mould frame upper punch optimization structure, which comprises a cylinder mounting plate, an upper punch cylinder, an upper die punch plate, a mould frame guide column, a first guide sleeve, an upper punch plate guide column and a second guide sleeve, the cylinder mounting plate is located above the upper die punch plate, the first guide sleeve is respectively installed in the first mounting hole on both sides of the cylinder mounting plate, the cylinder mounting plate is respectively connected with two or four mutually symmetrical mould frame guide columns through the first guide sleeve, the upper punch cylinder is vertically installed on the top of the cylinder mounting plate, the output rods of the two upper punch cylinders are respectively connected with the two sides of the upper die punch plate through the through hole of the cylinder mounting plate, the second guide sleeve is respectively installed in the second mounting hole of the cylinder mounting plate, the upper punch plate guide column is provided with two or four, the lower end of the upper punch plate guide column is connected with the top of the upper die punch plate, the upper end of the upper punch plate guide column extends upward through the corresponding second guide sleeve, and the upper die punch plate is connected with the cylinder mounting plate through the upper punch plate guide column and the second guide sleeve.
[0005] As preferred, a floating joint is connected to the output rod of the upper punch cylinder, both sides of the upper die punch plate are respectively provided with joint avoiding holes, and the bottom of the upper die punch plate is respectively provided with joint connecting plates located at the bottom of the joint avoiding holes, and the floating joint is connected to the joint connecting plates through the joint avoiding holes of the upper die punch plate.
[0006] As preferred, a mounting plate cushion is arranged at the middle position of the bottom of the cylinder mounting plate, and a buffer air cushion is arranged at the bottom of the mounting plate cushion.
[0007] As preferred, the buffer air cushion is in a cylindrical shape, and is fixed in the bottom groove of the mounting plate cushion by screws.
[0008] As preferred, the buffer air cushion is provided with two symmetrically arranged air cushions.
[0009] As preferred, an upper punch cushion for mounting the upper punch is arranged at the middle position of the bottom of the upper die punch plate.
[0010] Compared with the prior art, the beneficial effects of the present application are as follows:
[0011] 1. The structure of the present application is simple and reasonable, the cylinder mounting plate is guided to ascend and descend by the die frame guide column, and the upper die punch plate is guided to ascend and descend by the upper die punch plate guide column, so that the upper die mechanism of the powder forming press can ascend and descend more smoothly.
[0012] 2. The upper punch cylinder and the upper die punch plate of the present application are additionally provided with floating joints, which can further avoid the upper die punch plate from being stuck. BRIEF DESCRIPTION OF DRAWINGS
[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without any creative labor.
[0014] Figure 1 is a structural schematic view of the existing die frame structure with upper punch pressure maintaining function;
[0015] Figure 2 is Figure 1 is an enlarged view of part A of
[0016] Figure 3 is a structural schematic view of the die frame upper punch optimization structure provided by the embodiments of the present application;
[0017] Figure 4This is a schematic diagram of the main structure of the optimized upper punch structure of the mold frame provided in this embodiment of the utility model;
[0018] Figure 5 This is a schematic diagram of the bottom part of the cylinder mounting plate provided in this embodiment of the utility model. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0020] Please refer to Figure 3 , Figure 4 and Figure 5 The present invention provides an optimized upper punch structure for a mold frame, including a cylinder mounting plate 1, an upper punch cylinder 2, an upper punch plate 3, a mold frame guide post 4, a first guide sleeve 5, an upper punch plate guide post 6, and a second guide sleeve 7. The components of this embodiment will be described in detail below with reference to the accompanying drawings.
[0021] like Figure 3 and Figure 4 As shown, the cylinder mounting plate 1 is located above the upper die punch plate 3. The first guide sleeve 5 is installed in the four first mounting holes on both sides of the cylinder mounting plate 1. The cylinder mounting plate 1 is slidably connected to four mutually symmetrical die frame guide pillars 4 through the first guide sleeve 5. The die frame guide pillars 4 all pass through the center hole of the corresponding first guide sleeve 5.
[0022] like Figure 4 and Figure 5 As shown, the upper punch cylinder 2 is installed vertically downwards on both sides of the top of the cylinder mounting plate 1, and the output rods of the two upper punch cylinders 2 pass through the through holes of the cylinder mounting plate 1 and are connected to both sides of the upper die punch plate 3.
[0023] Preferably, the output rod of the upper punch cylinder 2 can be additionally connected to a floating joint 8. Correspondingly, the upper die punch plate 3 has joint clearance holes (round holes) on both sides, and joint connecting plates 9 located at the bottom of the joint clearance holes on both sides of the bottom of the upper die punch plate 3. The floating joint 8 can pass through the joint clearance holes of the upper die punch plate 3 and connect to the joint connecting plates 9. The floating joint 8 can absorb errors, making the lifting and lowering of the upper die punch plate 3 on the upper punch plate guide post 6 smoother, and further preventing the upper die punch plate from jamming.
[0024] like Figure 4 and Figure 5As shown, the second guide sleeves 7 are respectively installed in the second mounting holes of the cylinder mounting plate 1. There are four upper punch plate guide pillars 6. The lower end of the upper punch plate guide pillar 6 is connected to the top of the upper die punch plate 3. The upper end of the upper punch plate guide pillar 6 extends upward through the corresponding second guide sleeves 7. The upper die punch plate 3 is slidably connected to the cylinder mounting plate 1 through the upper punch plate guide pillars 6 and the second guide sleeves 7.
[0025] like Figure 5 As shown, a mounting plate pad 10 can also be provided at the bottom center of the cylinder mounting plate 1, and a buffer air cushion 11 is provided at the bottom of the mounting plate pad 10. The buffer air cushion 11 can be made of rubber or other plastic materials with good cushioning performance. The buffer air cushion 11 can contact the top of the upper die punch plate 3 and play a cushioning role.
[0026] Preferably, two cushioning air cushions 11 can be provided and arranged symmetrically to each other. The cushioning air cushions 11 can preferably be arranged in a cylindrical shape, and the cushioning air cushions 11 can be fixed in the bottom groove of the mounting plate pad 10 by screws.
[0027] like Figure 4 As shown, an upper punch pad 12 for mounting various upper punches can also be provided at the bottom center of the upper die punch plate 3.
[0028] During installation, the cylinder mounting plate 1 can be installed as follows: Figure 1 The mold frame structure is the same as shown. It is driven by a motor 101, a lead screw 102 and a lead screw drive cylinder 103 to move up and down. While the motor 101 drives the cylinder mounting plate 1 to rise and fall, the upper mold punch plate 3 connected to the upper punch cylinder 2 can also move up and down synchronously with the cylinder mounting plate 1. Under the drive of the upper punch cylinder 2, the upper mold punch plate 3 can also move up and down relative to the cylinder mounting plate 1.
[0029] In summary, this utility model has a simple structure and reasonable design. The cylinder mounting plate is guided to rise and fall by the mold frame guide post, and the upper mold punch plate is guided to rise and fall by the upper punch plate guide post. This can avoid the upper mold punch plate from getting stuck and make the upper mold mechanism of the powder forming press rise and fall more smoothly.
[0030] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.
Claims
1. An optimized structure for upper punching of a die set, characterized in that: The assembly includes a cylinder mounting plate, an upper punch cylinder, an upper die punch plate, die frame guide pillars, a first guide sleeve, an upper punch plate guide pillar, and a second guide sleeve. The cylinder mounting plate is located above the upper die punch plate. The first guide sleeves are respectively installed in the first mounting holes on both sides of the cylinder mounting plate. The cylinder mounting plate is slidably connected to two or four mutually symmetrical die frame guide pillars through the first guide sleeves. The upper punch cylinder is installed vertically downwards on both sides of the top of the cylinder mounting plate. The output rods of the two upper punch cylinders pass through the through holes of the cylinder mounting plate and are connected to the top sides of the upper die punch plate. The second guide sleeves are respectively installed in the second mounting holes of the cylinder mounting plate. There are two or four upper punch plate guide pillars. The lower end of the upper punch plate guide pillar is connected to the top of the upper die punch plate, and the upper end of the upper punch plate guide pillar extends upwards through the corresponding second guide sleeve. The upper die punch plate is slidably connected to the cylinder mounting plate through the upper punch plate guide pillar and the second guide sleeve.
2. The optimized upper punch structure of the die frame according to claim 1, characterized in that: The output rod of the upper punch cylinder is connected to a floating joint. The upper die punch plate has joint clearance holes on both sides. The upper die punch plate has joint connecting plates located at the bottom of the joint clearance holes on both sides. The floating joint passes through the joint clearance holes of the upper die punch plate and connects to the joint connecting plates.
3. The optimized upper punch structure of the die frame according to claim 1, characterized in that: A mounting plate pad is provided at the bottom center of the cylinder mounting plate, and a buffer air cushion is provided at the bottom of the mounting plate pad.
4. The optimized upper punch structure of the die frame according to claim 3, characterized in that: The cushioning air pad is cylindrical and is fixed to the bottom groove of the mounting plate pad by screws.
5. The optimized upper punch structure of the die frame according to claim 3, characterized in that: The cushioning air cushion is provided in two parts and is arranged symmetrically to each other.
6. The optimized upper punch structure of the die frame according to claim 1, characterized in that: The upper die plate has an upper punch pad at the bottom center for mounting the upper punch.