Stretching and punching integrated die for front cover of inner barrel of washing machine

Abstract

The utility model discloses a stretching and punching integrated die for a front cover of an inner barrel of a washing machine, belongs to the technical field of dies, and can avoid the conditions that a lower die and an upper die are inconvenient to replace as a whole and the like as much as possible during working. The stretching and punching integrated die for the front cover of the inner barrel of the washing machine comprises a top base, a lower die base is installed at the bottom of the top base, an upper die base is installed between the top base and the lower die base, guide rods are installed at the four corners between the top base and the lower die base, the upper die base is installed on the guide rods in a sleeving mode, and a hydraulic rod assisting the top of the upper die base in moving is installed in the center of the top of the top base. An upper die is installed at the bottom of the upper die base, a lower die is installed at the top of the lower die base, a supporting base is arranged in the center of the top of the lower die in a protruding mode, and a supporting ring is slidably arranged on the supporting base in a sleeving mode. Clamping blocks are arranged at the top of the upper die and the bottom of the lower die in a protruding mode, and clamping grooves are formed in the adjacent side edges of the upper die base and the lower die base.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology, specifically relating to an integrated mold for stretching and punching the front cover of a washing machine inner drum. Background Technology

[0002] The front cover of the washing machine drum is an important component of the washing machine. Located at the front of the inner drum, it primarily serves to protect and seal the drum. During manufacturing, the front cover requires stretching and punching. In manufacturing, stretching and punching typically refers to the process of stretching and cutting material into the required shape and size using a stamping process. In processing the front cover, a stretching and punching die is used to achieve the overall machining of the washing machine drum front cover.

[0003] Existing integrated stretching and punching molds for washing machine inner drum front covers mostly involve directly mounting the mold base with multiple sets of bolts. When processing inner drum front covers of different sizes is required later, it takes a long time to completely disassemble and replace the mold, making the overall operation quite cumbersome. Therefore, an integrated stretching and punching mold for washing machine inner drum front covers is needed to help solve this problem. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an integrated stretching and punching mold for the front cover of a washing machine drum. This integrated stretching and punching mold for the front cover of a washing machine drum can complete the initial fixing and snapping process of the lower mold and the upper mold. After the lower mold and the upper mold are initially positioned, the pushing block is pushed to the designated position, and the positioning bolt is rotated. The positioning bolt thread is installed in the mounting hole, thereby completing the overall installation and positioning process of the lower mold and the upper mold. This can minimize the inconvenience of replacing the lower mold and the upper mold during operation.

[0006] (2) Technical solution

[0007] To solve the above-mentioned technical problems, this utility model provides an integrated stretching and punching mold for the front cover of a washing machine inner drum. The integrated stretching and punching mold for the front cover of a washing machine inner drum includes a top seat, a lower mold seat installed at the bottom of the top seat, an upper mold seat installed between the top seat and the lower mold seat, guide rods installed at the four corners between the top seat and the lower mold seat, the upper mold seat sleeved on the guide rods, a hydraulic rod for assisting the movement of the top of the upper mold seat installed at the top center of the top of the top seat, an upper mold installed at the bottom of the upper mold seat, a lower mold installed at the top of the lower mold seat, a support seat protruding at the top center of the lower mold, a support ring slidably sleeved on the support seat, and a punching ring protruding at the bottom of the upper mold for punching in cooperation with the support ring.

[0008] Both the top of the upper mold and the bottom of the lower mold have protruding snap-fit ​​blocks. Snap-fit ​​grooves are provided on adjacent sides of both the upper and lower mold bases, and these grooves engage with the snap-fit ​​blocks.

[0009] Furthermore, the snap-fit ​​groove has an L-shaped groove structure, the vertical cross-section of the snap-fit ​​groove is T-shaped, and the vertical cross-section of the snap-fit ​​block is T-shaped.

[0010] Furthermore, mounting holes are drilled on both the upper mold base and the lower mold base, and positioning bolts are threaded into the mounting holes. The positioning bolts fix the push block on the upper mold base and the lower mold base, and the push block is attached to the side of the lower mold and the upper mold.

[0011] Furthermore, the bottom of the push block is symmetrically provided with a limit strip, the top of the lower mold base is symmetrically provided with a limit groove, the limit groove and the limit strip are slidably connected, a number of mounting holes are drilled at equal intervals, and the push block is provided with a through hole, the through hole being oblong in shape.

[0012] Furthermore, threaded holes are symmetrically drilled at the top of the lower mold, and limit pins are threadedly installed at the threaded holes.

[0013] Furthermore, a receiving ring is sleeved and installed at the top of the lower mold base corresponding to the outer edge of the guide rod, and an ejector spring is sleeved and installed on the guide rod between the upper mold base and the lower mold base, with the bottom of the ejector spring located at the inner edge of the receiving ring.

[0014] Furthermore, guide grooves are provided on the outer sides of both the top seat and the upper mold seat, and guide blocks are protruding from the top of both the upper mold seat and the lower mold seat. The guide grooves and guide blocks are fitted together.

[0015] (3) Beneficial effects

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

[0017] This utility model uses snap-fit ​​grooves on the upper and lower mold bases and snap-fit ​​blocks on the lower and upper molds. The snap-fit ​​blocks slide to the corresponding snap-fit ​​grooves and snap-fit ​​into the snap-fit ​​grooves during the sliding process, thereby completing the initial overall fixing and snap-fit ​​treatment of the lower and upper molds. After the lower and upper molds are initially positioned, the push block is pushed to the designated position, and the positioning bolt is rotated. The positioning bolt thread is installed in the mounting hole, thereby completing the overall installation and positioning treatment of the lower and upper molds. This can minimize the inconvenience of replacing the lower and upper molds as a whole during operation.

[0018] This utility model, through the setting of threaded holes and limiting posts, can stably limit the material to the corresponding position during operation, and try to avoid the situation where the material bounces as a whole during the punching process of the inner cylinder front cover, causing material displacement and misalignment, which affects the punching. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a structural diagram of the disassembled lower and upper molds of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the lower mold and the upper mold of this utility model;

[0023] Figure 4 This utility model Figure 2 A magnified structural diagram of point A in the middle.

[0024] The markings in the attached diagram are as follows: 1. Top seat; 2. Upper mold base; 3. Lower mold base; 4. Receiving ring; 5. Ejection spring; 6. Guide rod; 7. Hydraulic rod; 8. Lower mold; 81. Support ring; 82. Support base; 9. Upper mold; 91. Punching ring; 10. Threaded hole; 11. Limiting post; 12. Snap-fit ​​groove; 121. Snap-fit ​​block; 13. Push block; 131. Positioning bolt; 132. Limiting groove; 133. Mounting hole; 134. Limiting strip; 14. Guide groove; 15. Guide block. Detailed Implementation

[0025] 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.

[0026] This specific embodiment is an integrated stretching and punching mold for the front cover of a washing machine inner drum, such as... Figure 1 and Figure 2As shown, the integrated stretching and punching mold for the inner drum front cover of the washing machine includes a top seat 1, a lower mold seat 3 installed at the bottom of the top seat 1, an upper mold seat 2 installed between the top seat 1 and the lower mold seat 3, guide rods 6 installed at the four corners between the top seat 1 and the lower mold seat 3, the upper mold seat 2 being sleeved on the guide rods 6, a receiving ring 4 being sleeved on the top of the lower mold seat 3 corresponding to the outer edge of the guide rod 6, a hydraulic rod 7 for assisting the movement of the top of the upper mold seat 2 being installed at the center of the top of the top seat 1, and an ejector spring 5 being sleeved on the guide rod 6 between the upper mold seat 2 and the lower mold seat 3, with the bottom of the ejector spring 5 located at the inner edge of the receiving ring 4. During the downward punching process of the upper mold seat 2, the overall buffering treatment of the upper mold seat 2 is achieved by compressing the ejector spring 5, so as to avoid the situation where the upper mold seat 2 is damaged as a whole due to the large punching force.

[0027] Guide grooves 14 are provided on the outer sides of the top seat 1 and the upper mold seat 2. Guide blocks 15 are provided on the top of the upper mold seat 2 and the lower mold seat 3. The guide grooves 14 and the guide blocks 15 are connected by interlocking. Through the cooperation between the guide blocks 15 and the guide grooves 14, the position of the upper mold seat 2 can be kept fixed during the up and down movement of the upper mold seat 2 during operation, so as to avoid the upper mold seat 2 from being misaligned during the movement.

[0028] Reference Figure 2 , Figure 3 and Figure 4 As shown, an upper mold 9 is installed at the bottom of the upper mold base 2, and a lower mold 8 is installed at the top of the lower mold base 3. A support seat 82 is protruding at the center of the top of the lower mold 8, and a support ring 81 is slidably fitted onto the support seat 82. A punching ring 91 is protruding at the bottom of the upper mold 9 and punches in conjunction with the support ring 81. A snap-fit ​​block 121 is protruding at the top of the upper mold 9 and the bottom of the lower mold 8. The vertical cross-section of the snap-fit ​​block 121 is T-shaped. A snap-fit ​​groove 12 is opened on the adjacent side of the upper mold base 2 and the lower mold base 3. The snap-fit ​​groove 12 has an L-shaped groove structure and a T-shaped vertical cross-section. The snap-fit ​​groove 12 and the snap-fit ​​block 121 are engaged and snapped together. Mounting holes 133 are drilled on both the upper mold base 2 and the lower mold base 3. Positioning bolts 131 are threaded into the mounting holes 133. The positioning bolts 131 fix the push block 13 on the upper mold base 2 and the lower mold base 3. The push block 13 fits against the side of the lower mold 8 and the upper mold 9.

[0029] By using the snap-fit ​​grooves 12 on the upper mold base 2 and the lower mold base 3, and the snap-fit ​​blocks 121 on the lower mold 8 and the upper mold 9, the snap-fit ​​blocks 121 are slid at the corresponding snap-fit ​​grooves 12 and snap-fitted into the snap-fit ​​grooves 12 during the sliding process, thus completing the initial overall fixing and snap-fitting of the lower mold 8 and the upper mold 9. After the lower mold 8 and the upper mold 9 are initially positioned, the push block 13 is pushed to the designated position, and the positioning bolt 131 is rotated. The positioning bolt 131 is threaded into the mounting hole 133, thus completing the overall installation and positioning of the lower mold 8 and the upper mold 9. This can minimize the inconvenience of replacing the lower mold 8 and the upper mold 9 during operation.

[0030] The aforementioned push block 13 has symmetrically protruding limit strips 134 at its bottom, and symmetrically opened limit grooves 132 at the top of the lower mold base 3. The limit grooves 132 and the limit strips 134 slide together. Several mounting holes 133 are drilled at equal intervals. The push block 13 has through holes, which are oblong in shape. Through the cooperation between the limit grooves 132 and the limit strips 134, the push block 13 can be stably pushed and locked into the corresponding position during operation, and the tilting or misalignment of the push block 13 during fixing can be avoided as much as possible.

[0031] The lower mold 8 has symmetrically drilled threaded holes 10 at its top, and limit posts 11 are threadedly installed at the threaded holes 10. Through the threaded holes 10 and the limit posts 11, the material can be stably limited to the corresponding position during operation, so as to avoid the material from bouncing as a whole during the punching process of the inner cylinder front cover, causing the material to shift and misalign, affecting the punching process.

[0032] Working principle:

[0033] During operation, when it is necessary to install the lower mold 8 and the upper mold 9, the snap-fit ​​block 121 is slid at the snap-fit ​​groove 12 and snap-fitted into the snap-fit ​​groove 12 during the sliding process, thereby completing the initial overall fixing snap-fit ​​treatment of the lower mold 8 and the upper mold 9. After the lower mold 8 and the upper mold 9 are initially positioned, the push block 13 is pushed to the designated position, and the positioning bolt 131 is rotated. The positioning bolt 131 is threaded into the mounting hole 133, thereby completing the overall installation and positioning treatment of the lower mold 8 and the upper mold 9.

[0034] Start hydraulic rod 7. Hydraulic rod 7 descends, causing the upper mold base 2 to descend as a whole. During the descent of the upper mold base 2, the upper mold 9 descends as a whole, and the punching ring 91 on the upper mold 9 cooperates with the support ring 81 at the top of the lower mold 8 to perform extrusion punching, thereby achieving the overall punching process of the inner cylinder front cover. After punching, the support ring 81 can be lifted to push out the punched front cover, thereby achieving the overall production of the front cover.

[0035] During the downward punching process of the upper die holder 2, the overall buffering of the upper die holder 2 is achieved by compressing the ejector spring 5. At the same time, during the up and down movement of the upper die holder 2, the guide groove 14 and the guide block 15 cooperate to position the upper die holder 2 to ensure that there will be no misalignment during the movement.

[0036] All technical features in this embodiment can be freely combined according to actual needs.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A one-piece die for stretching and punching the front cover of a washing machine inner drum, the die comprising a top seat (1), characterized in that, A lower mold base (3) is installed at the bottom of the top base (1). An upper mold base (2) is installed between the top base (1) and the lower mold base (3). Guide rods (6) are installed at the four corners between the top base (1) and the lower mold base (3). The upper mold base (2) is sleeved on the guide rods (6). A hydraulic rod (7) is installed at the top center of the top of the top base (1) to assist the top of the upper mold base (2) in moving. An upper mold (9) is installed at the bottom of the upper mold base (2). A lower mold (8) is installed at the top of the lower mold base (3). A support base (82) is protruding at the top center of the lower mold (8). A support ring (81) is slidably sleeved on the support base (82). A punching ring (91) is protruding at the bottom of the upper mold (9) to cooperate with the support ring (81) for punching. The upper mold (9) and the lower mold (8) are both provided with a snap-fit ​​block (121) protruding from the top and bottom of the lower mold (8). The upper mold base (2) and the lower mold base (3) are both provided with snap-fit ​​grooves (12) on their adjacent sides. The snap-fit ​​grooves (12) and the snap-fit ​​blocks (121) are engaged and snap-fitted together.

2. The integrated stretching and punching mold for the front cover of a washing machine inner drum according to claim 1, characterized in that, The snap-fit ​​groove (12) has an L-shaped groove structure, the vertical cross-section of the snap-fit ​​groove (12) is T-shaped, and the vertical cross-section of the snap-fit ​​block (121) is T-shaped.

3. The integrated stretching and punching mold for the front cover of a washing machine inner drum according to claim 1, characterized in that, Mounting holes (133) are drilled on both the upper mold base (2) and the lower mold base (3). A positioning bolt (131) is threaded onto the mounting hole (133). The positioning bolt (131) fixes the push block (13) on the upper mold base (2) and the lower mold base (3). The push block (13) fits against the side of the lower mold (8) and the upper mold (9).

4. The integrated stretching and punching mold for the front cover of a washing machine inner drum according to claim 3, characterized in that, The bottom of the push block (13) is symmetrically provided with a limiting strip (134), and the top of the lower mold base (3) is symmetrically provided with a limiting groove (132). The limiting groove (132) and the limiting strip (134) slide together. Several mounting holes (133) are drilled at equal intervals. The push block (13) is provided with a through hole, which is oblong.

5. The integrated stretching and punching mold for the front cover of a washing machine inner drum according to claim 1, characterized in that, The lower mold (8) is symmetrically drilled with threaded holes (10) at the top, and a limit post (11) is threadedly installed at the threaded hole (10).

6. The integral stretching and punching die for the front cover of a washing machine inner drum according to claim 1, characterized in that, A receiving ring (4) is sleeved on the top of the lower mold base (3) corresponding to the outer edge of the guide rod (6). An ejector spring (5) is sleeved on the guide rod (6) between the upper mold base (2) and the lower mold base (3). The bottom of the ejector spring (5) is located at the inner edge of the receiving ring (4).

7. The integrated stretching and punching mold for the front cover of a washing machine inner drum according to claim 1, characterized in that, Guide grooves (14) are provided on the outer sides of the top seat (1) and the upper mold seat (2). Guide blocks (15) are provided at the top of the upper mold seat (2) and the lower mold seat (3). The guide grooves (14) and the guide blocks (15) are connected in a fitting manner.

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