Pin shaft end face character pressing device

Abstract

The utility model relates to the technical field of end face character pressing, in particular to a pin shaft end face character pressing device which comprises a lower die plate, a die core is arranged on the upper end face of the lower die plate, a supporting pad is vertically arranged in the die core in a sliding structure mode, a supporting column is arranged in the die core on the lower portion of the supporting pad, and the supporting pad is fixedly connected with the supporting column. The spring is arranged between the outer portion of the supporting column and the inner wall of the die core in a sleeved mode, the spring is matched with the supporting pad, the pin shaft after word pressing is popped out, operation difficulty is reduced, production efficiency is improved, and the supporting column can protect the spring and avoid deformation of the spring due to extrusion.

Description

Technical Field:

[0001] This application relates to the technical field of end-face letter pressing, and particularly to a pin shaft end-face letter pressing device. Background Art:

[0002] The Chinese invention patent application with the application number 202111432546.0 - a letter pressing device, includes a horizontally arranged lower template and an upper template. A concave die is provided on the lower template. A through groove for placing a workpiece is provided on the upper surface of the concave die. A positioning block is provided at the end of the groove. At least two vertical guide columns are provided on the lower template. Springs are sleeved on the guide columns. The upper template is sleeved on the guide columns and presses on the springs. A letter head vertically opposite to the groove is provided on the lower surface of the upper template.

[0003] In order to avoid deformation of the workpiece end face during the letter pressing process, the workpiece needs to be placed in the groove, and the concave die is used to limit and position the workpiece, so as to use the letter head to press the workpiece. However, it is difficult to take out the workpiece after letter pressing from the groove. Tools such as pliers are needed, and the removal is difficult and the efficiency is low. Utility Model Content:

[0004] To solve the above technical problems, the present utility model provides a pin shaft end-face letter pressing device, and the technical problem to be solved is that it is difficult to take out the workpiece from the groove using tools such as pliers, and the removal is difficult and the efficiency is low. The technical solution adopted by the present utility model to solve the above technical problems is as follows:

[0005] A pin shaft end-face letter pressing device, including:

[0006] A lower template, with a die core provided on the upper end face of the lower template;

[0007] A support pad, which is arranged in the die core in a sliding structure manner along the vertical direction;

[0008] A support column, which is arranged in the die core below the support pad;

[0009] A spring, which is sleeved between the outside of the support column and the inner wall of the die core;

[0010] A steel letter head, which is provided vertically above the die core;

[0011] An upper template, which is arranged above the steel letter head in a fixed structure manner.

[0012] Further, a lower fastening plate and a flange are sequentially arranged on the lower template from bottom to top in a fixed structure manner;

[0013] The die core is sleeved in the flange, and a backing plate is arranged in the flange at the lower end face of the die core.

[0014] Further, the lower template is provided with an L-shaped pressing plate for pressing the lower fastening plate, and the L-shaped pressing plate is connected to the lower template by bolts;

[0015] The lower fastening plate is connected to the flange by bolts.

[0016] Further, an upper fastening plate is provided on the lower end surface of the upper template in a fixed structure manner, and a fixing plate is fixedly provided on the lower end surface of the upper fastening plate. The fixing plate is connected to the steel character head in a fixed structure manner.

[0017] Further, the cross-section of the steel character head is in an inverted triangular structure.

[0018] Further, the outer peripheral surface of the support pad is in clearance fit with the inner wall of the die core.

[0019] Further, the flange is horizontally provided with screws for fixing the die core, and the screws are engaged with the flange through a threaded structure.

[0020] The beneficial effects of the present utility model are as follows: Through the cooperation of the spring and the support pad, the pin after the letter pressing is completed is ejected, reducing the operation difficulty and improving the production efficiency.

[0021] By providing the support column, the spring can be protected to prevent the spring from being deformed due to extrusion.

[0022] By providing the flange, not only can the die core be limited, but also the die core with different inner diameters can be conveniently replaced. The structure is simple and the operation is convenient.

[0023] The cross-section of the steel character head is set as an inverted triangular structure, reducing the stress area of the pin, thereby increasing the positive pressure received by the pin and effectively preventing side bending deformation. Description of the drawings:

[0024] Figure 1 It is a schematic cross-sectional structure diagram of the present utility model.

[0025] Figure 2 It is the present utility model Figure 1 The enlarged structure schematic diagram of the place A shown in the figure.

[0026] In the figure:

[0027] 1. Lower template, 2. Die core, 3. Support pad, 4. Support column, 5. Spring, 6. Steel character head, 7. Upper template, 8. Lower fastening plate, 9. Flange, 10. Spacer, 11. L-shaped pressing plate, 12. Upper fastening plate, 13. Fixing plate, 14. Screw. Specific embodiments:

[0028] To make the purpose, technical solution and advantages of the present utility model clearer, the present utility model will now be further described in detail with reference to the accompanying drawings and the following embodiments, so that the public can better master the implementation method of the present utility model. The specific implementation scheme of the present utility model is as follows:

[0029] The pin end face lettering device includes a lower template 1. A die core 2 is arranged on the upper end face of the lower template 1. A support pad 3 is arranged in the die core 2 in a sliding structure along the vertical direction. A pillar 4 is arranged in the die core 2 below the support pad 3. The support pad 3 is fixedly connected to the pillar 4. A spring 5 is sleeved between the outer part of the pillar 4 and the inner wall of the die core 2. Through the cooperation of the spring 5 and the support pad 3, the pin after lettering is ejected, reducing the operation difficulty and improving the production efficiency. Moreover, the pillar 4 can protect the spring to prevent the spring from being deformed due to extrusion; A steel letter head 6 is arranged vertically above the die core 2. An upper template 7 is arranged above the steel letter head 6 in a fixed structure for connecting to a punching machine.

[0030] Specifically, a lower fastening plate 8 and a flange 9 are sequentially arranged on the lower template 1 from bottom to top in a fixed structure; The die core 2 is sleeved in the flange 9. By arranging the flange 9, not only can the die core 2 be limited, but also it is convenient to replace the die core 2 with different inner diameters. The structure is simple and the operation is convenient; Further, a backing plate 10 is arranged in the flange 9 on the lower end face of the die core 2. After long-term use, when the pillar 4 presses out a groove on the backing plate 10, in order not to affect the lettering quality, it is convenient to replace the new backing plate 10.

[0031] It should be elaborated that the lower template 1 is provided with an L-shaped pressing plate 11 for pressing the lower fastening plate 8. The L-shaped pressing plate 11 is connected to the lower template 1 by bolts, which is convenient to connect with the lower template 1 of the punching machine. The lower fastening plate 8 is connected to the flange 9 by bolts.

[0032] An upper fastening plate 12 is arranged on the lower end face of the upper template 7 in a fixed structure. The upper fastening plate 12 is connected to the chute of the punching machine by bolts. A fixing plate 13 is fixedly arranged on the lower end face of the upper fastening plate 12. The fixing plate 13 is connected to the steel letter head 6 in a fixed structure.

[0033] It should be shown that the cross-section of the font of the steel letter head 6 is an inverted triangular structure, reducing the stress area of the pin, thereby increasing the positive pressure received by the pin and effectively preventing lateral bending deformation.

[0034] It should be noted that the outer peripheral surface of the support pad 3 is in clearance fit with the inner wall of the die core 2, and the inner wall of the die core 2 is used to limit the support pad 3 to prevent it from flipping.

[0035] Further, the flange 9 is horizontally provided with a screw 14 for fixing the die core 2. The screw 14 is engaged with the flange 9 by a threaded structure for fixing the die core 2.

[0036] The working principle and working process of the present utility model are as follows:

[0037] Place the pin shaft in the die core 2, start the stamping machine. The flywheel of the stamping machine drives the upper template 7, the upper fastening plate 12, the fixing plate 13 and the steel lettering head 6 to move downward. When the steel lettering head 6 contacts the upper end face of the pin shaft, the pin shaft drives the support pad 3 and the support column 4 to move downward. At this time, the spring 5 is compressed until the lower end face of the support column 4 contacts the backing plate 10 to support the pin shaft. At this time, the pin shaft is completely located in the die core 2. The steel lettering head 6 is further pressed downward to press the font on the steel lettering head 6 onto the upper end face of the pin shaft, completing the lettering work.

[0038] Subsequently, the flywheel of the stamping machine drives the upper template 7, the upper fastening plate 12, the fixing plate 13 and the steel lettering head 6 to move upward. At the same time, the pin shaft is no longer under the pressure of the steel lettering head 6. The spring 5 resumes, and the upper part of the pin shaft is pushed out of the die core 2 through the support pad 3, completing the ejection work.

[0039] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "front", "rear", "lower left", "upper right", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the protection scope of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Although the present invention is described based on a limited number of embodiments, those skilled in the art in this technical field should understand that within the scope of the present invention described herein, other embodiments can be conceived.

Claims

1. Pin end face embossing device, characterized in that: include: A lower mold plate (1), wherein the upper end surface of the lower mold plate (1) is provided with a mold core (2); A support pad (3), the support pad (3) is arranged in the mold core (2) in a vertical direction in a sliding structure manner; A support column (4), the support column (4) is arranged in the mold core (2) below the support pad (3); A spring (5), the spring (5) being sleeved between the outside of the support (4) and the inner wall of the mold core (2); A steel head (6), the steel head (6) is arranged vertically above the mold core (2); The upper template (7) is arranged above the steel letter head (6) in a fixed structure manner.

2. The pin end face embossing device according to claim 1, characterized in that: The lower template (1) is provided with a lower fastening plate (8) and a flange (9) in sequence from bottom to top in a fixed structure manner; The mold core (2) is sleeved in the flange (9), and a pad (10) is arranged in the flange (9) at the lower end surface of the mold core (2).

3. The pin end face embossing device according to claim 1, characterized in that: The lower template (1) is provided with an L-shaped pressing plate (11) for pressing the lower fastening plate (8), and the L-shaped pressing plate (11) is connected to the lower template (1) by bolts; The lower fastening plate (8) is connected to the flange (9) by bolts.

4. The pin end face embossing device according to claim 1, characterized in that: An upper fastening plate (12) is arranged on the lower end surface of the upper template (7) in a fixed structural manner, a fixing plate (13) is fixedly arranged on the lower end surface of the upper fastening plate (12), and the fixing plate (13) is connected to the steel head (6) in a fixed structural manner.

5. The pin end face embossing device according to claim 4, characterized in that: The cross section of the steel letterhead (6) is an inverted triangle structure.

6. The pin end face embossing device according to claim 4, characterized in that: The outer peripheral surface of the support pad (3) is clearance-matched with the inner wall of the mold core (2).

7. The pin end face embossing device according to claim 2, characterized in that: The flange (9) is horizontally provided with screws (14) for fixing the mold core (2), and the screws (14) are meshed with the flange (9) through a threaded structure.

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