Pneumatic pre-pressing pin mechanism of transfer die

Abstract

The utility model discloses a pneumatic pre-pressing pin mechanism of a transfer die, which comprises a sealing system, one end of the sealing system is connected with a die holder, an air supply component is arranged on the die holder and the sealing system, and the air supply component comprises a plug which is arranged at one end of the die holder and is connected with an external air source. The gas path is arranged on the plug and extends into the sealing system; one end of the pre-pressing pin is arranged in the sealing system, the other end of the pre-pressing pin is provided with a pin head, the pin head is provided with a protection part, the protection part comprises a protection head installed at one end of the pin head, and the outer diameter of the protection head is consistent with the outer diameter of the pin head; a groove is formed in one end of the protection head, and a set screw for fixing the protection head and the pin head is arranged in the groove; the device has the advantages that the problem that SPM is reduced due to product shaking caused by vibration of a machine tool during automatic production of the transfer die is solved, and the automatic production efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of automated production technology of transfer molds, and specifically relates to a pneumatic pre-compression pin mechanism for transfer molds. Background Technology

[0002] Transmission mode technology enables continuous and efficient processing of products from raw materials to finished products through a series of sophisticated mechanical components and control systems. However, in actual production, the vibration of machine tools has always been one of the key factors affecting product quality and production efficiency.

[0003] During the operation of the transfer mold, the precise closure and positioning of the mold are the foundation for ensuring product quality. However, due to the vibration of the machine tool during operation, the parts inside the mold often experience slight displacement or vibration. This not only affects the processing accuracy of the product, but may also lead to a decrease in the overall efficiency of the production line. Especially when performing precision machining, any slight vibration may cause the product to be unqualified, thereby increasing production costs and scrap rate.

[0004] To address this issue, traditional methods typically involve reducing vibration by enhancing the rigidity and stability of the machine tool. However, this often requires substantial financial investment and technological upgrades, with limited effectiveness. Another approach is to improve the mold structure, such as by adding auxiliary devices like locating pins, to enhance mold stability. However, these methods tend to increase mold complexity and manufacturing costs, and also hinder quick mold replacement and maintenance. Utility Model Content

[0005] The purpose of this utility model is to provide a pneumatic pre-compression pin mechanism for transfer molds, which effectively reduces product vibration caused by machine tool vibration during automated production of transfer molds, and improves the stability and production efficiency of automated production lines for transfer molds.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pneumatic preload pin mechanism for a transfer mode, comprising...

[0007] A sealing system, one end of which is connected to a mold base, and an air supply component is provided on the mold base and the sealing system. The air supply component includes a plug installed at one end of the mold base and connected to an external air source, and an air passage provided on the plug and extending into the interior of the sealing system.

[0008] A pre-compression pin, one end of which is located inside the sealing system, and the other end of which is provided with a pin head and a protective component. The protective component includes a protective head installed at one end of the pin head, and the outer diameter of the protective head is the same as the outer diameter of the pin head.

[0009] Preferably, one end of the protective head is provided with a groove, and the inside of the groove is provided with a fixing screw to fix the protective head and the pin.

[0010] Preferably, it further includes a first shield installed at the other end of the sealing system, and the first shield is located outside the preload pin.

[0011] Preferably, it further includes a second cover installed at one end of the first cover, and the second cover is located outside the preload pin.

[0012] Preferably, the preload pin is provided with a fastening disc, and the fastening disc is fixed to the second protective cover.

[0013] Preferably, the interior of the second protective cover has a through hole through which the pin head passes, and the inner wall of the through hole is provided with a resistance-reducing component.

[0014] Preferably, the drag-reducing component includes multiple fixing plates installed on the inner wall of the perforation, and a universal ball disposed on the fixing plate, the universal ball abutting against the outer wall of the pin head.

[0015] Preferably, the omnidirectional ball and the fixing plate are an integral structure, and the fixing plate is an arc-shaped structure.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This solution addresses the issue of reduced SPM (Surface Mount Product) caused by product vibration due to machine tool vibration during automated production of transfer molds, thereby improving automated production efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 For the present utility model Figure 1 A schematic diagram of the structure after the first protective cover is removed;

[0020] Figure 3 For the present utility model Figure 1 A schematic diagram of the structure after the first and second protective covers are removed;

[0021] Figure 4 This is a schematic diagram of the product and the structure after the lower mold is removed according to this utility model;

[0022] Figure 5 For the present utility model Figure 4 A schematic diagram of the enlarged structure of region H in the diagram;

[0023] Figure 6 This is a side view of the structure of this utility model;

[0024] Figure 7 For the present utility model Figure 6 A schematic diagram of the enlarged Y-region structure in the diagram;

[0025] In the diagram: 1. Mold base; 2. Sealing system; 3. Plug; 31. Air passage; 4. First protective cover; 5. Second protective cover; 51. Perforation; 510. Fixing plate; 5101. Universal ball; 6. Lower mold; 7. Product; 8. Pre-compression pin; 81. Fastening plate; 82. Pin head; 83. Protective head; 830. Groove; 8301. Set screw. Detailed Implementation

[0026] 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.

[0027] Example 1

[0028] Please see Figures 1-6 This is the first embodiment of the present invention, which provides a pneumatic preload pin mechanism for a transfer mold, including...

[0029] The sealing system 2 is connected to the mold base 1 at one end, so that the sealing system 2 and the mold base 1 are spliced ​​together. The mold base 1 and the sealing system 2 are provided with air supply components. The air supply components include a plug 3 installed at one end of the mold base 1 and connected to an external air source. The machine tool provides a stable air source to ensure that the air is always present. An air passage 31 is provided on the plug 3 and extends into the sealing system 2. Air is replenished into the sealing system 2 through the air passage 31.

[0030] The pre-compression pin 8 has one end located inside the sealing system 2, which transfers air into the mold, causing the pre-compression pin to keep springing open and maintaining a certain pressure. The other end has a pin head 82. When the pre-compression pin 8 moves, it drives the pin head 82 to move, pressing the product 7 onto the lower mold 6 to prevent the part from vibrating. The pin head 82 is equipped with a protective component, which includes a protective head 83 installed at one end of the pin head 82. The outer diameter of the protective head 83 is the same as that of the pin head 82. The protective head 83 increases the protection of the pin head 82 and can be disassembled and replaced after the protective head 83 wears out over a period of time, without having to replace the entire pre-compression pin 8.

[0031] In this embodiment, preferably, a groove 830 is provided at one end of the protective head 83, and a fixing screw 8301 is provided inside the groove 830 to fix the protective head 83 and the pin 82, which helps to achieve a stable splicing of the protective head 83 and the pin 82, and can be disassembled and replaced when the protective head 83 is worn.

[0032] In this embodiment, preferably, a first protective cover 4 is installed at the other end of the sealing system 2, and the first protective cover 4 is located outside the pre-compression pin 8, thereby increasing the function of protecting the pre-compression pin 8.

[0033] In this embodiment, preferably, a second protective cover 5 is installed at one end of the first protective cover 4, and the second protective cover 5 is located outside the pre-compression pin 8, thereby further increasing the protection of the pre-compression pin 8.

[0034] In this embodiment, preferably, a fastening plate 81 is provided on the pre-pressing pin 8, and the fastening plate 81 is fixed to the second protective cover 5 by bolts. The splicing of the fastening plate 81 and the second protective cover 5 increases the splicing strength of the second protective cover 5.

[0035] In this embodiment, preferably, the interior of the second protective cover 5 is provided with a through hole 51 through which the pin head 82 passes, thus realizing the opening of the through hole 51.

[0036] The sealing system employs techniques conventional in this field:

[0037] Sealed structure

[0038] Sealing materials: Select high-temperature resistant, wear-resistant, and corrosion-resistant sealing materials, such as fluororubber, polytetrafluoroethylene (PTFE), or metal sealing rings, to ensure the stability and durability of sealing performance;

[0039] Sealing method: A combination of radial sealing and end face sealing is used; radial sealing prevents gas leakage through the tight fit between the sealing ring and the mold wall; end face sealing is achieved through the sealing surface between the pre-compression pin and the mold seat.

[0040] Gas path design

[0041] Air inlet: One or more air inlets are provided on the mold and connected to the air source through air pipes; the air inlets should be located inside the mold in a position that facilitates gas distribution to ensure that the gas can fill the mold interior evenly and quickly;

[0042] Gas distribution: Gas distribution channels or gas chambers are set inside the mold to ensure that the gas can act evenly on the pre-pressed pin;

[0043] Vent: One or more vents are provided on the mold to discharge the gas inside the mold when needed;

[0044] Pressure maintenance

[0045] Pressure regulator: A pressure regulator is installed between the air source and the air inlet to regulate the pressure of the gas entering the mold. By adjusting the setting value of the pressure regulator, precise control of the gas pressure inside the mold can be achieved.

[0046] Pressure monitoring: A pressure sensor is installed inside the mold to monitor the gas pressure inside the mold in real time. When the pressure is lower than the set value, gas is added to maintain a stable pressure.

[0047] Example 2

[0048] Please see Figures 1-7 This is the second embodiment of the present invention, which is based on the previous embodiment, but differs in that:

[0049] The inner wall of the perforation 51 is provided with a drag-reducing component, which includes multiple fixing plates 510 that are installed on the inner wall of the perforation 51 by screws, thus achieving a stable installation of the fixing plates 510. A universal ball 5101 is provided on the fixing plate 510. The universal ball 5101 and the fixing plate 510 are an integral structure, which helps to increase the strength of the universal ball 5101 and the fixing plate 510. The fixing plate 510 has an arc-shaped structure, which further restricts the universal ball 5101. The universal ball 5101 abuts against the outer wall of the pin head 82. When the pin head 82 moves, the resistance to movement is reduced with the cooperation of the fixing plate 510 and the universal ball 5101.

[0050] The working principle and usage process of this utility model are as follows: The machine tool provides a stable air source and replenishes the sealing system 2 through the air passage 31; the sealing system 2 transfers the air into the mold, so that the pre-pressing pin 8 is always open and holds a certain pressure; the protective head 83 on the pin head 82 at the end of the pre-pressing pin 8 presses the product 7 onto the lower mold 6, ensuring that the part does not vibrate, thus solving the problem of product shaking caused by machine tool vibration during automated production of transfer molds, which leads to a decrease in SPM, and improving the efficiency of automated production.

[0051] It should be noted that:

[0052] SPM: Number of pieces produced per minute, is one of the important indicators for measuring production efficiency.

[0053] Although embodiments of the present invention have been shown and described in detail above, 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 pneumatic preload pin mechanism for a transfer mode, characterized in that: include A sealing system (2) is provided with a mold base (1) at one end, and an air supply component is provided on the mold base (1) and the sealing system (2). The air supply component includes a plug (3) installed at one end of the mold base (1) and connected to an external air source, and an air passage (31) provided on the plug (3) and extending into the interior of the sealing system (2). A pre-compression pin (8) is provided at one end inside the sealing system (2) and at the other end is provided a pin head (82). A protective component is provided on the pin head (82). The protective component includes a protective head (83) installed at one end of the pin head (82) and the outer diameter of the protective head (83) is the same as the outer diameter of the pin head (82).

2. The pneumatic preload pin mechanism for a transfer mode according to claim 1, characterized in that: One end of the protective head (83) is provided with a groove (830), and the groove (830) is provided with a fixing screw (8301) to fix the protective head (83) and the pin (82).

3. The pneumatic preload pin mechanism for a transfer mode according to claim 1, characterized in that: It also includes a first shield (4) installed at the other end of the sealing system (2), and the first shield (4) is located outside the preload pin (8).

4. The pneumatic preload pin mechanism for a transfer mold according to claim 3, characterized in that: It also includes a second cover (5) installed at one end of the first cover (4), and the second cover (5) is located outside the preload pin (8).

5. The pneumatic preload pin mechanism for a transfer mold according to claim 4, characterized in that: The pre-pressing pin (8) is provided with a fastening plate (81), and the fastening plate (81) is fixed on the second protective cover (5).

6. The pneumatic preload pin mechanism for a transfer mold according to claim 5, characterized in that: The second protective cover (5) has a through hole (51) through which the pin head (82) passes, and the inner wall of the through hole (51) is provided with a resistance reducing component.

7. The pneumatic preload pin mechanism for a transfer mode according to claim 6, characterized in that: The drag-reducing component includes multiple fixing plates (510) installed on the inner wall of the perforation (51), and a universal ball (5101) disposed on the fixing plate (510), which abuts against the outer wall of the pin head (82).

8. A pneumatic preload pin mechanism for a transfer mold according to claim 7, characterized in that: The omnidirectional ball (5101) and the fixing plate (510) are an integral structure, and the fixing plate (510) is an arc-shaped structure.

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