Novel stripping structure

Abstract

The utility model relates to the field of stripping structures, and discloses a novel stripping structure which comprises a stripping sleeve, a through hole is formed in the stripping sleeve, a punch is movably sleeved with the stripping sleeve, one side of the stripping sleeve is connected with an upper die shell, a hole is formed in the upper die shell, a cushion block is arranged in the hole, the cushion block is attached to the punch, and the upper die shell is connected with a lower die shell. A stress cushion block is arranged at the tail end of the upper mold shell, a special-shaped cushion block is arranged at the tail end of the stress cushion block, the upper mold shell and the stress cushion block are each provided with two sets of insertion holes, the insertion holes in the upper mold shell and the insertion holes in the stress cushion block are communicated, and a rebound structure is arranged in each insertion hole in the upper mold shell. According to the novel stripping structure, the active springback function of the stripping sleeve is achieved, abrasion of the stripping sleeve with the same function is effectively reduced, the period of the stripping sleeve can be effectively shortened, the purpose of reducing the production cost is achieved, and meanwhile the novel stripping structure is easy to machine and manufacture.

Description

Technical Field

[0001] The utility model relates to the field of stripping structures, in particular to a novel stripping structure. Background Art

[0002] The stripping structure is used for product hole (blind hole) stretching forming and the straightening function structure in the forming process to realize the stripping and pushing action. Common stripping and pushing mechanisms are pneumatic, hydraulic, mechanical and other types. The stripping and pushing mechanism needs to have sufficient thrust and stroke to meet various needs in the forming process. At the same time, the stripping and pushing mechanism also needs to work closely with the mold and forming equipment to ensure the smooth progress of the stripping and pushing action. Some of the existing stripping sleeves have wear and tear on the stripping sleeves of the mold due to long-term friction and wear. Generally speaking, the wear of the stripping sleeve will lead to a decrease in the accuracy of the mold, thereby affecting the quality and output of the product. For this reason, we have proposed a new stripping structure. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides a novel stripping structure to solve the above-mentioned problems.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a novel stripping structure, including a stripping sleeve, a through hole is provided inside the stripping sleeve, a punch is movably sleeved inside the stripping sleeve, one side of the stripping sleeve is connected to an upper mold shell, a hole is provided inside the upper mold shell, a pad is provided inside the hole, the pad is fitted with the punch, a force-bearing pad is provided at the end of the upper mold shell, a special-shaped pad is provided at the end of the force-bearing pad, two groups of plug-in holes are provided on the upper mold shell and the force-bearing pad, the plug-in holes on the upper mold shell and the force-bearing pad are connected, a rebound structure is provided inside the plug-in holes of the upper mold shell, a stripping rear push rod is provided inside the plug-in holes of the force-bearing pad, and the stripping rear push rod is fitted with the rebound structure.

[0007] Preferably, the rebound structure includes a spring and a front push rod for stripping, wherein the front push rod for stripping is sleeved inside the spring, the end of the front push rod for stripping fits with the rear push rod for stripping, and the front push rod for stripping fits with the connecting bolt.

[0008] Preferably, the stripping sleeve is connected to the stripping front push rod via a connecting bolt.

[0009] Preferably, the cross section of the push rod before stripping is T-shaped.

[0010] Preferably, the cross section of the punch is T-shaped.

[0011] Preferably, the special-shaped cushion block is connected and fitted to the push rod after stripping by two connecting bolts.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model provides a new stripping structure, which has the following beneficial effects:

[0014] 1. This new stripping structure solves the active rebound function of the stripping sleeve and effectively reduces the wear of the stripping sleeve with similar functions. This structure can effectively reduce the stripping sleeve cycle and achieve the purpose of reducing production costs. At the same time, this structure is easy to process and manufacture. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a side view schematic diagram of the utility model;

[0016] Figure 2 Schematic diagram of the punch;

[0017] Figure 3 It is a schematic diagram of the stripping sleeve;

[0018] Figure 4 Schematic diagram of the upper mold shell;

[0019] Figure 5 It is a schematic diagram of the force bearing pad;

[0020] Figure 6 This is a schematic diagram of a special-shaped pad.

[0021] In the figure: 1. Punch; 2. Stripping sleeve; 3. Connecting bolt 1; 4. Push rod before stripping; 5. Upper mold shell; 6. Spring; 7. Pad; 8. Force-bearing pad; 9. Push rod after stripping; 10. Connecting bolt 2; 11. Special-shaped pad. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-6A new type of stripping structure includes a stripping sleeve 2, a through hole is opened inside the stripping sleeve 2, a punch 1 is movably sleeved inside the stripping sleeve 2, an upper mold shell 5 is connected to one side of the stripping sleeve 2, a hole is opened inside the upper mold shell 5, a pad 7 is arranged inside the hole, the pad 7 is fitted with the punch 1, a force-bearing pad 8 is arranged at the end of the upper mold shell 5, a special-shaped pad 11 is arranged at the end of the force-bearing pad 8, two groups of plug-in holes are opened on the upper mold shell 5 and the force-bearing pad 8, the plug-in holes on the upper mold shell 5 and the force-bearing pad 8 are connected, a rebound structure is arranged inside the plug-in holes of the upper mold shell 5, a stripping rear push rod 9 is arranged inside the plug-in holes of the force-bearing pad 8, and the stripping rear push rod 9 is fitted with the rebound structure.

[0024] Furthermore, the rebound structure includes a spring 6 and a front push rod 4 for stripping, the front push rod 4 is sleeved inside the spring 6, the end of the front push rod 4 is fitted with the rear push rod 9 for stripping, and the front push rod 4 is fitted with the connecting bolt 3.

[0025] Furthermore, the stripping sleeve 2 is connected to the front push rod 4 of the stripping device by a connecting bolt 3.

[0026] Furthermore, the cross section of the front push rod 4 for stripping is T-shaped.

[0027] Furthermore, the cross section of the punch 1 is T-shaped.

[0028] Furthermore, the special-shaped cushion block 11 is connected and fitted to the push rod 9 after stripping by a connecting bolt 10 .

[0029] Working principle: through the front male mold ejector rod, special-shaped pad 11, stripping rear push rod 9, force pad 8, stripping front push rod 4, spring 6, stripping sleeve 2, punch 1. When the main slider moves to the front dead point, the punch completes an action. At this time, the workpiece adheres to the punch. Under the action of the male mold ejector rod, the special-shaped pad 11 is pushed. The special-shaped pad 11 is connected to the stripping rear push rod 9, pushing the stripping front push rod 4. Since the stripping front push rod 4 is equipped with a spring 6, it finally pushes the stripping sleeve 2. The stripping sleeve 2 pushes the workpiece to separate it from the punch 1, and finally restores the original state under the action of the spring 6 to prepare for the next stripping.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel stripping structure, comprising a stripping sleeve (2), characterized in that: The stripping sleeve (2) has a through hole inside, and a punch (1) is movably sleeved inside the stripping sleeve (2). One side of the stripping sleeve (2) is connected to an upper mold shell (5). The upper mold shell (5) has a hole inside, and a pad (7) is arranged inside the hole. The pad (7) fits with the punch (1). A force-bearing pad (8) is arranged at the end of the upper mold shell (5), and a special-shaped pad (11) is arranged at the end of the force-bearing pad (8). Two groups of plug-in holes are arranged on the upper mold shell (5) and the force-bearing pad (8). The plug-in holes on the upper mold shell (5) and the force-bearing pad (8) are connected. A rebound structure is arranged inside the plug-in hole of the upper mold shell (5), and a stripping rear push rod (9) is arranged inside the plug-in hole of the force-bearing pad (8). The stripping rear push rod (9) fits with the rebound structure.

2. A novel stripping structure according to claim 1, characterized in that: The rebound structure comprises a spring (6) and a front push rod (4) for stripping, wherein the front push rod (4) is sleeved inside the spring (6), the end of the front push rod (4) is fitted with the rear push rod (9) for stripping, and the front push rod (4) is fitted with the connecting bolt (3).

3. A novel stripping structure according to claim 2, characterized in that: The stripping sleeve (2) is connected to the stripping front push rod (4) via a connecting bolt (3).

4. A novel stripping structure according to claim 2, characterized in that: The cross section of the stripping front push rod (4) is T-shaped.

5. A novel stripping structure according to claim 1, characterized in that: The cross section of the punch (1) is T-shaped.

6. A novel stripping structure according to claim 1, characterized in that: The special-shaped cushion block (11) is connected and fitted to the stripping rear push rod (9) via a second connecting bolt (10).

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