Pressing and combining device for valve needle spring production

Abstract

The utility model relates to the technical field of valve needle springs, and discloses a pressing and combining device for valve needle spring production, which comprises a protective box, the top end of the protective box is hinged with the rear end of a box cover, the bottom end of the box cover is fixedly connected with the top end of a first magnetic attraction block, the first magnetic attraction block is provided with three, and an upper die is arranged in the protective box. The number of the upper dies is three, the top ends of the three upper dies are fixedly connected with the bottom ends of second magnetic attraction blocks, the number of the second magnetic attraction blocks is three, and the bottom ends of the three first magnetic attraction blocks make contact with the top ends of the three second magnetic attraction blocks. The upper die is stably placed at the bottom end of the box cover through the attraction force between the second magnetic attraction block and the first magnetic attraction block. By means of the design, the upper die can be properly kept in a non-working state, meanwhile, the upper die can be rapidly obtained when used next time, and when valve needle spring pressing and operation are started, the upper die is firstly taken down from the bottom end of the box cover and then accurately placed on the inner wall of the lower die.

Description

Technical Field

[0001] This utility model relates to the field of valve needle spring technology, and in particular to a pressing device for manufacturing valve needle springs. Background Technology

[0002] Valve needle springs are important components commonly used in automotive engine fuel injection systems, and their quality and performance directly affect the engine's fuel injection efficiency and overall performance. In the production process of valve needle springs, the pressing and coiling process is one of the key steps. Its purpose is to tightly press the individual coils of the spring together to achieve the required spring stiffness and elastic properties.

[0003] Traditional manual or simple mechanical pressing devices often require multiple manual adjustments and operations during spring pressing, such as mold installation and fixing, and spring placement and removal. These processes are time-consuming, resulting in low production efficiency and difficulty in meeting the needs of large-scale production. Furthermore, during the pressing process, springs may suddenly pop out or break under high pressure, posing a threat to operator safety. In addition, traditional devices often lack adequate safety measures, such as effective protective boxes and safety light curtains, further increasing operational risks. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a pressing device for valve needle spring production.

[0005] This utility model is achieved using the following technical solution: a pressing device for producing valve needle springs, comprising a protective box, the top of the protective box being hinged to the rear end of the box cover, the bottom end of the box cover being fixedly connected to the top of a magnetic block one, the magnetic block one being provided with three, an upper mold being provided inside the protective box, the upper mold being provided with three, the top ends of the three upper molds being fixedly connected to the bottom ends of a magnetic block two, the magnetic block two being provided with three, the bottom ends of the three magnetic blocks one being in contact with the top ends of the three magnetic blocks two.

[0006] Through the above technical solution, in the valve needle spring production process, the protective box can prevent operators from accidentally contacting the running mold and spring, reducing safety risks. The bottom of the box cover is fixedly connected to the top of the magnetic block one. The magnetic block one and magnetic block two cooperate to allow the upper mold to be easily attached to the bottom of the box cover when not in use, which facilitates the storage and management of the mold. The setting of magnetic block one and magnetic block two allows the upper mold to be easily attached to the bottom of the box cover when not in use, and can also be easily removed when needed, improving the work efficiency in the production preparation stage. The magnetic method can ensure the accuracy of the relative position of the upper mold and the box cover, so that good consistency can be maintained each time the upper mold is removed and installed, which is beneficial to the subsequent use with the lower mold.

[0007] As a further improvement to the above solution, the front end of the protective box is provided with a limiting slot, and a plurality of limiting slots are provided. A reinforcing plate is slidably connected to the inner wall of the plurality of limiting slots, and a plurality of reinforcing plates are provided.

[0008] Through the above technical solution, after the reinforcing plate is inserted into the limiting slot, the protective capacity of the protective box is further enhanced, preventing damage to the outside caused by unexpected situations such as spring popping out during the pressing process. The insertion of multiple reinforcing plates into the limiting slot can enhance the overall structural strength of the protective box, which is of great significance for withstanding the force generated during the pressing process and maintaining the stability of the protective box during long-term use.

[0009] As a further improvement to the above solution, the bottom end of the inner wall of the protective box is fixedly connected to the bottom end of the lifting rod. There are three lifting rods. The top ends of the three lifting rods are fixedly connected to the bottom end of the lower mold. There are three lower molds. The inner walls of the three lower molds are in contact with the surfaces of the three upper molds. The top ends of the three lower molds are provided with placement slots. There are several placement slots. Spring bodies are placed inside the several placement slots. There are several spring bodies.

[0010] Through the above technical solution, the lifting rod enables the lower mold to move precisely up and down. By precisely controlling the rising height of the lifting rod, the degree of compression of the spring body by the upper mold can be accurately controlled, thereby producing a valve needle spring that meets the requirements. The inner wall of the lower mold is in contact with the surface of the upper mold, and a placement groove is opened at the top of the lower mold for placing the spring body. During the compression process, the lower mold cooperates with the upper mold to fix and compress the spring body. The upper mold cooperates with the lower mold. During the compression process, the upper mold moves downward under the action of the lifting rod to compress the spring body placed in the placement groove, compressing the spring body to the required shape and size.

[0011] As a further improvement to the above scheme, the inner walls of the three lower molds are threaded with bolts, and a number of bolts are provided. The top of the upper mold is provided with a nut, and the surfaces of the bolts are threadedly connected to the inner wall of the nut through the interior of the upper mold.

[0012] Through the above technical solution, bolts and nuts are used to fix the upper mold on the lower mold. This threaded connection provides a stable fixing effect, ensuring that the upper and lower molds will not be relatively displaced during the pressing and merging of the spring body, thereby ensuring the pressing and merging accuracy and helping to produce qualified valve needle springs. The connection of bolts and nuts facilitates fine-tuning during mold installation to adapt to the production of valve needle springs with different specifications or precision requirements, increasing the flexibility of the device.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention utilizes magnetic blocks one and two to allow the upper mold to be conveniently attached to the bottom of the lid when not in use. This design facilitates mold storage and management during valve needle spring production, preventing damage or loss due to careless placement. Simultaneously, it allows for easy removal when needed, improving work efficiency during production preparation. The magnetic attachment ensures accurate relative positioning between the upper mold and the lid, maintaining consistency during each removal and installation, which is beneficial for subsequent use with the lower mold.

[0015] During the pressing and merging operation, the upper die is fixed to the lower die with bolts and nuts. This threaded connection provides a stable fixation, ensuring that the upper and lower dies do not shift relative to each other during the pressing and merging of the spring body. This guarantees the precision of the pressing and merging process and helps produce valve needle springs of qualified quality. The bolt and nut connection also allows for fine-tuning during die installation to accommodate valve needle springs of different specifications or precision requirements. This is highly advantageous when producing various types of valve needle springs, increasing the flexibility of the equipment.

[0016] This invention provides physical protection for the entire pressing and merging device through a protective box. During the valve needle spring production process, it prevents operators from accidentally coming into contact with the running mold and spring, reducing safety risks. Simultaneously, the reinforcing plate inserted into the limiting slot further enhances the protective capabilities of the protective box, preventing external damage from unexpected situations such as spring ejection during the pressing and merging process.

[0017] The lifting rod allows the lower mold to move precisely up and down. In valve needle spring production, by precisely controlling the rising height of the lifting rod, the pressure of the upper mold on the spring body can be accurately controlled, thereby producing valve needle springs that meet the requirements. Attached Figure Description

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

[0019] Figure 2 This is a schematic diagram of the left end structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the reinforcing plate structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the spring body structure of this utility model.

[0023] Explanation of key symbols:

[0024] 1. Protective box; 2. Box lid; 3. Magnetic block one; 4. Limiting groove; 5. Reinforcing plate; 6. Lifting rod; 7. Lower mold; 8. Upper mold; 9. Placement groove; 10. Spring body; 11. Bolt; 12. Nut; 13. Magnetic block two. Detailed Implementation

[0025] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0026] Example:

[0027] Please combine Figure 1-5 This embodiment of a valve needle spring production pressing device includes a protective box 1. The top of the protective box 1 is hinged to the rear end of the box cover 2. The bottom end of the box cover 2 is fixedly connected to the top of the magnetic block 1 3. The magnetic block 1 3 is provided with three magnetic blocks. The protective box 1 is provided with an upper mold 8. There are three upper molds 8. The top ends of the three upper molds 8 are fixedly connected to the bottom ends of the magnetic block 2 13. There are three magnetic blocks 2 13. The bottom ends of the three magnetic blocks 1 3 are in contact with the top ends of the three magnetic blocks 2 13.

[0028] The protective box 1 has a limit slot 4 at the front end, and there are several limit slots 4. The inner walls of the several limit slots 4 are slidably connected with reinforcing plates 5, and there are several reinforcing plates 5.

[0029] The bottom of the inner wall of the protective box 1 is fixedly connected to the bottom of the lifting rod 6, and there are three lifting rods 6.

[0030] The tops of the three lifting rods 6 are fixedly connected to the bottom of the lower mold 7. There are three lower molds 7, and the inner walls of the three lower molds 7 are in contact with the surfaces of the three upper molds 8.

[0031] The top of the three lower molds 7 are provided with placement slots 9, and there are several placement slots 9. Spring bodies 10 are placed inside the several placement slots 9. There are several spring bodies 10.

[0032] The inner walls of the three lower molds 7 are threaded with bolts 11, and there are several bolts 11.

[0033] The top of the upper mold 8 is provided with a nut 12, and the surfaces of several bolts 11 are threadedly connected to the inner wall of the nut 12 through the inside of the upper mold 8.

[0034] The implementation principle of the valve needle spring pressing device in this embodiment is as follows: When the device is not in use, the upper mold 8 is securely placed at the bottom of the cover 2 by the attraction between the magnetic block 2 13 and the magnetic block 3. This design allows the upper mold 8 to be properly stored when not in use, and also facilitates quick retrieval for the next use. When starting the valve needle spring pressing operation, the upper mold 8 is first removed from the bottom of the cover 2 and then accurately placed on the inner wall of the lower mold 7. Next, the bolt 11 is passed through the inside of the upper mold 8 and then threaded to the inner wall of the nut 12, thereby firmly fixing the upper mold 8 to the lower mold 7. This process ensures accurate matching between the upper mold 8 and the lower mold 7 in subsequent pressing operations. After the mold is installed, the reinforcing plate 5 is inserted into the limiting slot 4 at the front end of the protective box 1. The insertion of these reinforcing plates 5 not only enhances the structural strength of the protective box 1, but also further improves the safety of the device during the pressing process. Subsequently, the lifting rod 6 is activated to make it rise. The lifting rod 6 moves the lower mold 7 upwards. When the spring body 10 in the lower mold 7 rises to the top of the upper mold 8 and contacts the bottom of the reinforcing plate 5, the lifting rod 6 continues to rise. Since the upper mold 8 is already fixed, the continued rise of the lower mold 7 will compress the spring body 10 placed in the placement groove 9, pressing it into the required shape and size. By precisely controlling the rising height of the lifting rod 6, the degree of compression of the spring body 10 can be controlled, thereby producing a valve needle spring that meets the requirements.

[0035] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A valve needle spring production presser device characterized by, The protective box (1) is hinged to the rear end of the cover (2) at the top. The bottom end of the cover (2) is fixedly connected to the top end of the magnetic block one (3). The magnetic block one (3) is provided with three. The protective box (1) is provided with an upper mold (8) inside. The upper mold (8) is provided with three. The top end of the three upper molds (8) is fixedly connected to the bottom end of the magnetic block two (13). The magnetic block two (13) is provided with three. The bottom end of the three magnetic blocks one (3) is in contact with the top end of the three magnetic blocks two (13).

2. The valve needle spring production presser device according to claim 1, wherein: The protective box (1) has a limiting slot (4) at the front end. There are several limiting slots (4). The inner walls of the several limiting slots (4) are slidably connected with reinforcing plates (5). There are several reinforcing plates (5).

3. The valve needle spring production presser device of claim 1, wherein: The bottom of the inner wall of the protective box (1) is fixedly connected to the bottom of the lifting rod (6), and there are three lifting rods (6).

4. The valve needle spring production presser device of claim 3, wherein: The top ends of the three lifting rods (6) are fixedly connected to the bottom end of the lower mold (7). There are three lower molds (7), and the inner walls of the three lower molds (7) are in contact with the surfaces of the three upper molds (8).

5. The valve needle spring production presser device of claim 4, wherein: The top of the three lower molds (7) are provided with placement slots (9), and there are several placement slots (9). Spring bodies (10) are placed inside the several placement slots (9), and there are several spring bodies (10).

6. The valve needle spring production presser device of claim 5, wherein: The inner walls of the three lower molds (7) are threaded with bolts (11), and there are several bolts (11).

7. The valve needle spring production presser device of claim 6, wherein: The top of the upper mold (8) is provided with a nut (12), and the surfaces of several bolts (11) are threadedly connected to the inner wall of the nut (12) through the interior of the upper mold (8).

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