Ejecting device used after punch forming and used for hardware machining

Abstract

The device comprises an upper hardware die, a lifting column, a sliding sleeve, an ejector rod, an ejector head, a limiting head and a reset spring, the upper hardware die is a movable die of hardware stamping equipment, a vertical through hole is formed in the upper hardware die, a stepped opening is formed in the lower end of the through hole, and the lower end of the stepped opening is connected with the lifting column. The upper end of the lifting column is fixedly connected to the telescopic end of hardware stamping equipment, the lower end of the lifting column is fixedly connected to the center of the upper end face of the hardware upper die, the sliding sleeve is fixedly connected into a through hole of the hardware upper die, the ejector rod is slidably connected to the sliding sleeve, and the ejector head is fixedly connected to the tail end of the ejector rod. The limiting head is fixedly connected to the top end of the ejector rod, the ejector rod is sleeved with the reset spring, and the upper end and the lower end of the reset spring are fixedly connected to the limiting block and the sliding sleeve respectively. The device has the advantages of simple structure, convenience in use, good use effect and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of machining and processing equipment, and particularly to a material ejecting device after stamping forming for hardware part processing. Background Art

[0002] Hardware parts refer to tools obtained by processing and casting metals such as gold, silver, copper, iron, and tin, and are usually used for fixing items, processing items, decoration, etc. During the production process of hardware parts, a stamping device is required to perform die casting forming on the hardware parts;

[0003] When die casting hardware parts, due to the impact of the upper die, the position of the processed parts often shifts, resulting in a reduction in the accuracy of the processed products; in addition, after die casting forming, the workpieces often get stuck on the upper die, making it very inconvenient and time-consuming to take them out manually. At the same time, the process is rather cumbersome, and even accidents may occur during the taking-out process by the operator. Summary of the Invention

[0004] The purpose of the present invention is to provide a material ejecting device after stamping forming for hardware part processing, so as to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A material ejecting device after stamping forming for hardware part processing, comprising: an upper die for hardware parts, a lifting column, a sliding sleeve, a top rod, a top head, a limiting head, and a return spring. The upper die for hardware parts is the moving die of the hardware part stamping equipment. A vertical through hole is opened on the upper die for hardware parts, and the lower end of the through hole is a stepped opening. The upper end of the lifting column is fixedly connected to the telescopic end of the hardware part stamping equipment, and the lower end of the lifting column is fixedly connected to the center position of the upper end surface of the upper die for hardware parts. The sliding sleeve is fixedly connected in the through hole of the upper die for hardware parts. The top rod is slidably connected in the sliding sleeve. The top head is fixedly connected to the end of the top rod, and the top head matches the stepped opening at the lower end of the through hole. The limiting head is fixedly connected to the top of the top rod. The return spring is sleeved on the top rod, and the upper and lower ends of the return spring are respectively fixedly connected to the limiting block and the sliding sleeve.

[0006] Further, the cross-section of the top rod is a regular hexagon, and the cross-section of the inner through hole of the sliding sleeve matches the cross-section of the top rod.

[0007] Further, at least one through hole is opened on the upper die for hardware parts.

[0008] Compared with the prior art, the beneficial effects of the present invention are:

[0009] 1. The ejector device after stamping forming for hardware processing of the present invention is an improvement based on the existing stamping equipment. By opening through holes in the upper die of the hardware, a sliding sleeve is arranged in the through holes, and then a slidable ejector rod is arranged in the sliding sleeve. Under the action of the return spring, the end of the ejector rod is ejected. During stamping, the end of the ejector rod first contacts the workpiece. As the upper die of the hardware continues to descend in height, the return spring is gradually stretched, and the end of the ejector rod presses the workpiece tightly against the lower die, thereby preventing the position offset of the workpiece. After the stamping forming is completed, the upper die of the hardware moves upward, and the return spring gradually returns to the initial state. During this process, the end of the ejector rod still presses the workpiece tightly against the lower die until the workpiece is completely separated from the upper die of the hardware, thereby preventing the situation that the workpiece is stuck on the upper die of the hardware.

[0010] 2. In the ejector device after stamping forming for hardware processing of the present invention, multiple through holes are arranged on the upper die of the hardware, and correspondingly multiple ejector rods are arranged to meet the processing requirements of workpieces of different sizes and specifications.

[0011] The present invention has the advantages of simple structure, convenient use, good use effect, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic structural diagram of the present invention;

[0013] In the figure: 1 - upper die of the hardware; 2 - lifting column; 3 - sliding sleeve; 4 - ejector rod; 5 - ejector head; 6 - limit head; 7 - return spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0015] Please refer to Figure 1, the present invention provides a material ejecting device after stamping forming for hardware processing, including: a hardware upper die 1, a lifting column 2, a sliding sleeve 3, a ejector rod 4, a ejector head 5, a limiting head 6, and a return spring 7. The hardware upper die 1 is a moving die of a hardware stamping device. A vertical through hole is opened on the hardware upper die 1, and the lower end of the through hole is a stepped opening. The upper end of the lifting column 2 is fixedly connected to the telescopic end of the hardware stamping device, and the lower end of the lifting column 2 is fixedly connected to the center position of the upper end surface of the hardware upper die 1. The sliding sleeve 3 is fixedly connected in the through hole of the hardware upper die 1. The ejector rod 4 is slidably connected in the sliding sleeve 3. The ejector head 5 is fixedly connected to the end of the ejector rod 4, and the ejector head 5 matches the stepped opening at the lower end of the through hole. The limiting head 6 is fixedly connected to the top end of the ejector rod 4. The return spring 7 is sleeved on the ejector rod 4, and the upper and lower ends of the return spring 7 are respectively fixedly connected to the limiting block 6 and the sliding sleeve 3.

[0016] An improvement is made on the existing stamping equipment. By opening a through hole on the hardware upper die 1, arranging a sliding sleeve 3 in the through hole, and then arranging a slidable ejector rod 4 in the sliding sleeve 3, under the action of the return spring 7, the end of the ejector rod 4 is ejected. During stamping, the end of the ejector rod 4 first contacts the workpiece. As the hardware upper die 1 continues to descend in height, the return spring 7 is gradually stretched, and the end of the ejector rod 4 presses the workpiece tightly against the lower die, thereby preventing the position of the workpiece from shifting. After the stamping forming is completed, the hardware upper die 1 moves upward, and the return spring 7 gradually returns to its initial state. During this process, the end of the ejector rod 4 still presses the workpiece tightly against the lower die until the workpiece is completely separated from the hardware upper die 1, thereby preventing the workpiece from getting stuck on the hardware upper die 1.

[0017] Furthermore, the cross-section of the ejector rod 4 is a regular hexagon, and the cross-section of the inner through hole of the sliding sleeve 3 matches the cross-section of the ejector rod 4.

[0018] Furthermore, at least one through hole is opened on the hardware upper die 1.

[0019] Multiple through holes are arranged on the hardware upper die 1, so as to correspondingly arrange multiple ejector rods 4 to meet the processing requirements of workpieces of different sizes and specifications.

[0020] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A post-pressing ejection device for hardware processing, characterized in that: include: A hardware upper mold (1), a lifting column (2), a sliding sleeve (3), a push rod (4), a push head (5), a limit head (6), and a reset spring (7). The hardware upper mold (1) is a movable mold of a hardware stamping device. A vertical through hole is opened on the hardware upper mold (1), and the lower end of the through hole is a stepped opening. The upper end of the lifting column (2) is fixedly connected to the telescopic end of the hardware stamping device, and the lower end of the lifting column (2) is fixedly connected to the center of the upper end surface of the hardware upper mold (1). The sliding sleeve (3) is fixedly connected to the through hole of the mold (1) on the hardware, the push rod (4) is slidably connected to the sliding sleeve (3), the push head (5) is fixedly connected to the end of the push rod (4), and the push head (5) matches the stepped opening at the lower end of the through hole, the limit head (6) is fixedly connected to the top of the push rod (4), the return spring (7) is sleeved on the push rod (4), and the upper and lower ends of the return spring (7) are respectively fixedly connected to the limit block (6) and the sliding sleeve (3).

2. The post-pressing ejection device for hardware processing according to claim 1 is characterized in that: The cross section of the push rod (4) is a regular hexagon, and the cross section of the inner through hole of the sliding sleeve (3) matches the cross section of the push rod (4).

3. The post-pressing ejection device for hardware processing according to claim 1, characterized in that: The hardware upper mold (1) has at least one through hole.

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