Forming die for L-shaped part

Abstract

The utility model relates to the field of dies, in particular to an L-shaped part forming die which is characterized in that the L-shaped part forming die comprises an upper die and a lower die, a lower die core is arranged on the lower die, a lower cavity used for forming an L-shaped part is formed in the lower die core, and a first insert used for forming a round hole and a second insert used for forming a rectangular groove are arranged on the lower die core; a mounting groove is formed in the lower cavity, a first T-shaped groove is formed in the side face of the mounting groove, a first T-shaped block matched with the first T-shaped groove is arranged on the side face, opposite to the first T-shaped groove, of the mounting groove, and a second T-shaped block and a second T-shaped groove are arranged on the two opposite side faces of the first insert and the second insert correspondingly. The second T-shaped block is used for being inserted into the first T-shaped groove, and the first T-shaped block is used for being inserted into the second T-shaped groove. The L-shaped piece has the beneficial effects that the positions of the round hole and the rectangular groove in the L-shaped piece are changed, cost is saved, and operation is convenient.

Description

Technical Field

[0001] The present application relates to the field of molds, and in particular to a forming mold for an L-shaped part. Background Art

[0002] A mold generally includes an upper mold and a lower mold, which can be separated or combined. When separated, the workpiece is taken out, and when combined, the blank is injected into the mold cavity for forming. In the process of furniture manufacturing, an L-shaped part is usually required to connect the two parts, or to fix and position the furniture. For example, in production, there is an L-shaped part, on the surface of one end of which a circular hole and a rectangular groove are provided that penetrate the L-shaped part. However, the positions of the circular hole and the rectangular groove required for different batches of L-shaped parts need to be changed according to actual conditions. For example, the positions of the circular hole and the rectangular groove are exchanged. To solve the above problems, most of them currently adopt the method of re-opening the mold, but this method requires the production of a new set of molds, which is costly and troublesome. Utility Model Content

[0003] The purpose of the present application is to provide a forming die for an L-shaped part, in which the positions of the inserts corresponding to the circular holes and the rectangular grooves can be changed, thereby realizing the change of the positions of the circular holes and the rectangular grooves on the L-shaped part, saving costs and facilitating operation.

[0004] In order to achieve the above objectives, the technical solution adopted by the utility model is: a forming mold for an L-shaped part, comprising an upper mold and a lower mold, the lower mold is provided with a lower mold core, the lower mold core is provided with a lower cavity for forming the L-shaped part, the lower mold core is provided with a first insert for forming a circular hole and a second insert for forming a rectangular groove, a mounting groove is provided in the lower cavity, a first T-shaped groove is provided on the side of the mounting groove, and a first T-block matching the first T-shaped groove is provided on the side of the mounting groove opposite to the first T-shaped groove, a second T-block and a second T-slot are respectively provided on the opposite side surfaces of the first insert and the second insert, the second T-block is used to be inserted in the first T-shaped groove, and the first T-block is used to be inserted in the second T-shaped groove.

[0005] By adopting the above technical solution, since the first insert and the second insert both have the same second T-shaped block and second T-shaped groove, when the first insert and the second insert are inserted into the installation groove, the first insert and the second insert can both cooperate with the two sides of the installation groove, and the positions of the first insert and the second insert can be interchanged with each other, so that the position of the insert corresponding to the circular hole and the rectangular groove can be changed, thereby realizing the change of the position of the circular hole and the rectangular groove on the L-shaped part, saving costs and facilitating operation.

[0006] Preferably, the mounting groove includes an upper groove and a lower groove, the first T-block and the first T-slot are both located on the groove wall of the lower groove, the first insert includes a first covering portion and a first connecting portion, the first connecting portion is fixed below the first covering portion, and the first connecting portion is smaller than the first covering portion, the second T-block and the second T-slot in the first insert are both located on the first connecting portion, the first connecting portion is used to be inserted into the lower groove, and the first covering portion is used to be inserted into the upper groove, the second insert includes a second covering portion and a second connecting portion, the second connecting portion is fixed below the second covering portion, and the second connecting portion is smaller than the first covering portion, the second T-block and the second T-slot in the second insert are both located on the second connecting portion, the second connecting portion is used to be inserted into the lower groove, the second covering portion is used to be inserted into the upper groove, and the first covering portion and the second covering portion are assembled to fit with the upper groove.

[0007] By adopting the above solution, the upper surfaces of the first covering part and the second covering part participate in the molding of the article, and the arrangement of the first covering part and the second covering part is conducive to reducing the gap on the lower cavity, which is conducive to making the surface of the molded article smoother.

[0008] Preferably, a first guide portion is provided below the first connecting portion, and the first guide portion is specifically in the shape of an inverted pyramid that gradually narrows from top to bottom. A second guide portion is provided below the second connecting portion, and the second guide portion is specifically in the shape of an inverted pyramid that gradually narrows from top to bottom.

[0009] By adopting the above technical solution, the arrangement of the first guide portion and the second guide portion enables the first connecting portion or the second connecting portion to play a certain guiding role when inserted into the lower groove, making the insertion smoother.

[0010] Preferably, a waste groove and an exhaust groove are also provided on the lower mold core, one end of the waste groove is connected to the lower mold cavity, one end of the exhaust groove is connected to the other end of the waste groove, and the other end of the exhaust groove passes through the side of the lower mold core.

[0011] By adopting the above solution, the provision of the waste trough and the exhaust trough is conducive to the raw material filling the lower cavity more easily, so that the surface of the molded object is smoother and the quality is better.

[0012] Preferably, a demoulding assembly for ejecting the molded object from the lower mold core is also provided on the side of the lower mold facing away from the upper mold, and the demoulding assembly includes a plurality of demoulding pins, some of which are placed at the waste trough and used to eject waste in the waste trough.

[0013] By adopting the above solution, the arrangement of the demoulding ejector pin makes the overall demoulding more stable.

[0014] In summary, the beneficial technical effects of this application are:

[0015] Since the first insert and the second insert both have the same second T-block and second T-slot, when the first insert and the second insert are inserted into the mounting groove, the first insert and the second insert can both cooperate with the two sides of the mounting groove, and the positions of the first insert and the second insert can be interchanged with each other, so that the positions of the inserts corresponding to the circular hole and the rectangular groove can be changed, thereby changing the positions of the circular hole and the rectangular groove on the L-shaped part, saving costs and facilitating operation. At the same time, the provision of the first covering portion and the second covering portion is conducive to reducing the gap on the lower cavity, which is conducive to making the surface of the molded article smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the lower mold in this application.

[0017] Figure 2 It is a schematic diagram of the structure after the lower mold in this application hides the molded object.

[0018] Figure 3 yes Figure 2 Enlarged schematic diagram of part A.

[0019] Figure 4 2 is a top view of the mounting groove in this embodiment.

[0020] Figure 5 2 is a side view of the second insert in this embodiment.

[0021] Figure 6 It is a partial cross-sectional schematic diagram of the first insert in this embodiment.

[0022] Description of reference numerals:

[0023] 1. Lower mold; 2. Lower mold core; 3. Lower cavity; 4. First insert; 5. Second insert; 6. First T-slot; 7. First T-block; 8. Second T-block; 9. Second T-slot; 10. Upper groove; 11. Lower groove; 12. First covering part; 13. First connecting part; 14. Second covering part; 15. Second connecting part; 16. First guiding part; 17. Second guiding part; 18. Waste groove; 19. Exhaust groove; 20. Ejector pin. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0025] The present application discloses a forming die for an L-shaped part, such as Figure 1-Figure 6 As shown, it includes an upper mold and a lower mold 1, the lower mold 1 is provided with a lower mold core 2, the lower mold core 2 is provided with a lower mold cavity 3 for forming an L-shaped part, the lower mold core 2 is provided with a first insert 4 for forming a circular hole and a second insert 5 for forming a rectangular groove, a mounting groove is provided in the lower mold cavity 3, a first T-shaped groove 6 is provided on the side of the mounting groove, and a first T-shaped block 7 matching the first T-shaped groove 6 is provided on the side opposite to the mounting groove and the first T-shaped groove 6, and a second T-shaped block 8 and a second T-shaped groove 9 are respectively provided on the opposite side surfaces of the first insert 4 and the second insert 5, the second T-shaped block 8 is used to be inserted in the first T-shaped groove 6, and the first T-shaped block 7 is used to be inserted in the second T shaped groove 9, since the first insert 4 and the second insert 5 have the same second T-block 8 and second T-slot 9, when the first insert 4 and the second insert 5 are inserted into the mounting groove, the first insert 4 and the second insert 5 can cooperate with both sides of the mounting groove, and the positions of the first insert 4 and the second insert 5 can be interchanged with each other, so that the insert positions corresponding to the circular hole and the rectangular groove can be changed, thereby changing the positions of the circular hole and the rectangular groove on the L-shaped part, saving costs and facilitating operation, and the corners of the first T-block 7 and the second T-block 8 are rounded to facilitate the first T-block 7 and the second T-block 8 to be inserted into the second T-slot 9 and the first T-slot 6 respectively.

[0026] In this embodiment, there are eight lower cavities 3 on the lower mold core 2, and each lower cavity 3 is used to form an L-shaped part, thereby improving the production efficiency of the L-shaped part. Figure 4-Figure 6As shown, the mounting groove includes an upper groove 10 and a lower groove 11, the first T-block 7 and the first T-slot 6 are both located on the groove wall of the lower groove 11, the first insert 4 includes a first covering portion 12 and a first connecting portion 13, the first connecting portion 13 is fixed below the first covering portion 12, and the first connecting portion 13 is smaller than the first covering portion 12, the second T-block 8 and the second T-slot 9 in the first insert 4 are both located on the first connecting portion 13, the first connecting portion 13 is used to be inserted into the lower groove 11, and the first covering portion 12 is used to be inserted into the upper groove 10, and similarly, the second insert 5 has a similar structure to the first insert 4, the second insert 5 includes a second covering portion 14 and a second connecting portion 15, the second connecting portion 15 is fixed below the second covering portion 14, the length of the second covering portion 14 is twice the length of the first covering portion 12, and the second The connecting portion 15 is smaller than the first covering portion 12, the second T-block 8 and the second T-slot 9 in the second insert 5 are both located on the second connecting portion 15, the second connecting portion 15 is used to be inserted into the lower groove 11, the second covering portion 14 is used to be inserted into the upper groove 10, and the first covering portion 12 and the second covering portion 14 are matched with the upper groove 10 after being spliced ​​together, so that when the first covering portion 12 and the second covering portion 14 are placed in the upper groove 10, the side surfaces of the first covering portion 12 and the second covering portion 14 are against each other, and the upper surfaces of the first covering portion 12 and the second covering portion 14 are flush with the lower cavity 3, the upper surfaces of the first covering portion 12 and the second covering portion 14 participate in the molding of the article, and the setting of the first covering portion 12 and the second covering portion 14 is conducive to reducing the gap on the lower cavity 3, which is conducive to making the surface of the molded article smoother.

[0027] A first guide portion 16 is provided below the first connecting portion 13, and the first guide portion 16 is specifically in the shape of an inverted pyramid that narrows gradually from top to bottom. A second guide portion 17 is provided below the second connecting portion 15, and the second guide portion 17 is specifically in the shape of an inverted pyramid that narrows gradually from top to bottom. The setting of the first guide portion 16 and the second guide portion 17 enables the first connecting portion 13 or the second connecting portion 15 to play a certain guiding role when inserted into the lower groove 11, making the insertion smoother.

[0028] In addition, if Figure 2 and Figure 3As shown, a waste groove 18 and an exhaust groove 19 are also provided on the lower mold core 2, one end of the waste groove 18 is connected with the lower cavity 3, one end of the exhaust groove 19 is connected with the other end of the waste groove 18, and the other end of the exhaust groove 19 passes through the side of the lower mold core 2. The setting of the waste groove 18 and the exhaust groove 19 is conducive to the raw material to fill the lower cavity 3 more easily, so that the surface of the molded object is smoother and the quality is better. A demolding component for ejecting the molded object out of the lower mold core 2 is also provided on the side of the lower mold 1 away from the upper mold. The demolding component includes a plurality of demolding ejectors 20, some of which are placed at the waste groove 18 and used to eject the waste in the waste groove 18. The setting of the demolding ejectors 20 makes the overall demolding more stable.

[0029] The implementation principle of this embodiment is:

[0030] Before molding, the first insert 4 and the second insert 5 need to be inserted into the installation groove, and the second T-block 8 on the first insert 4 and the second insert 5 can be inserted into the first T-slot 6 of the lower groove 11. Similarly, the first T-block 7 of the lower groove 11 can be inserted into the second T-slot 9 on the first insert 4 or the second insert 5, and the first covering part 12 and the second covering part 14 are matched with the upper groove 10 after being spliced. Therefore, if the second T-block 8 of the first insert 4 is inserted into the first T-slot 6, the first T-block 7 is inserted into the second T-slot 9 of the second insert 5, and if the second T-block 8 of the second insert 5 is inserted into the first T-slot 6, the first T-block 7 is inserted into the second T-slot 9 of the first insert 4, so that the positions of the first insert 4 and the second insert 5 can be interchanged with each other, so that the insert positions corresponding to the circular holes and the rectangular grooves can be changed, thereby changing the positions of the circular holes and the rectangular grooves on the L-shaped part, saving costs and facilitating operation.

[0031] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0032] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The description of the above examples is only used to help understand the method and core idea of ​​the utility model; the above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the utility model, and can also combine the above-mentioned technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. A forming die for an L-shaped part, characterized in that: The invention comprises an upper die and a lower die (1), wherein the lower die (1) is provided with a lower die core (2), the lower die core (2) is provided with a lower die cavity (3) for forming an L-shaped part, the lower die core (2) is provided with a first insert (4) for forming a circular hole and a second insert (5) for forming a rectangular groove, a mounting groove is provided in the lower die cavity (3), a first T-shaped groove (6) is provided on the side of the mounting groove, and a first T-shaped block (7) matching with the first T-shaped groove (6) is provided on the side of the mounting groove opposite to the first T-shaped groove (6), a second T-shaped block (8) and a second T-shaped groove (9) are respectively provided on the opposite side surfaces of the first insert (4) and the second insert (5), the second T-shaped block (8) is used to be inserted in the first T-shaped groove (6), and the first T-shaped block (7) is used to be inserted in the second T-shaped groove (9).

2. The L-shaped part forming die according to claim 1, characterized in that: The mounting groove comprises an upper groove (10) and a lower groove (11); the first T-shaped block (7) and the first T-shaped groove (6) are both located on the groove wall of the lower groove (11); the first insert (4) comprises a first covering portion (12) and a first connecting portion (13); the first connecting portion (13) is fixed below the first covering portion (12), and the first connecting portion (13) is smaller than the first covering portion (12); the second T-shaped block (8) and the second T-shaped groove (9) in the first insert (4) are both located on the first connecting portion (13); the first connecting portion (13) is used to be inserted into the lower groove (11); the first covering portion (12) is used to be inserted into the In the upper groove (10), the second insert (5) comprises a second covering portion (14) and a second connecting portion (15); the second connecting portion (15) is fixed below the second covering portion (14), and the second connecting portion (15) is smaller than the first covering portion (12); the second T-shaped block (8) and the second T-shaped groove (9) in the second insert (5) are both located on the second connecting portion (15); the second connecting portion (15) is used to be inserted into the lower groove (11); the second covering portion (14) is used to be inserted into the upper groove (10); and the first covering portion (12) and the second covering portion (14) are matched with the upper groove (10) after being assembled.

3. The L-shaped part forming die according to claim 2, characterized in that: A first guide portion (16) is provided below the first connection portion (13), and the first guide portion (16) is specifically in the shape of an inverted pyramid that gradually narrows from top to bottom. A second guide portion (17) is provided below the second connection portion (15), and the second guide portion (17) is specifically in the shape of an inverted pyramid that gradually narrows from top to bottom.

4. The L-shaped part forming die according to claim 1, characterized in that: The lower mold core (2) is also provided with a waste groove (18) and an exhaust groove (19), one end of the waste groove (18) is connected to the lower mold cavity (3), one end of the exhaust groove (19) is connected to the other end of the waste groove (18), and the other end of the exhaust groove (19) passes through the side surface of the lower mold core (2).

5. The L-shaped part forming die according to claim 4, characterized in that: A demoulding assembly for ejecting the molded object from the lower mold core (2) is also provided on the side of the lower mold (1) facing away from the upper mold. The demoulding assembly includes a plurality of demoulding ejector pins (20). Some of the demoulding ejector pins (20) are placed at the waste trough (18) and are used to eject waste in the waste trough (18).

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