Die capable of quickly replacing ejector sleeve

Abstract

The utility model discloses a mold capable of quickly replacing an ejector sleeve. The mold comprises a fixed bottom plate, the ejector sleeve, an ejector pin, and an ejector pin bottom plate and an ejector pin panel which are sequentially stacked on the fixed bottom plate from bottom to top, a mold base is further arranged above the ejector pin panel, a rear mold core is further installed in the mold base, a first fixing block is detachably installed at the bottom of the fixing bottom plate, and a first insert is further detachably installed in the first fixing block; and a second insert is detachably mounted at a position, corresponding to the first fixing block, of the bottom of the ejector pin bottom plate. According to the utility model, the quick release inserts are additionally arranged in the fixed bottom plate and the ejector pin bottom plate, so that the ejector sleeve can be replaced only by detaching the inserts, the time for replacing the ejector sleeve of the lower die of a medium-large-sized die is greatly shortened, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, and particularly relates to a mold capable of quickly replacing ejector sleeves. Background Art

[0002] At present, for the replacement of ejector sleeves, it is often necessary to disassemble the lower mold to replace the ejector sleeves. However, in the existing mold structure, when producing products with multiple different shapes, due to the different heights or positions of the ejector sleeves, for medium and large-sized molds, it often takes one day or even longer to disassemble the lower mold to replace the ejector sleeves, which is time-consuming and laborious, and has a high labor intensity. Therefore, it needs to be improved. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a mold capable of quickly replacing ejector sleeves. By adding quick-release inserts in the fixed bottom plate and the ejector pin bottom plate, when replacing the ejector sleeves, only the inserts need to be removed to complete the replacement, greatly shortening the time for replacing the ejector sleeves of the lower mold of medium and large-sized molds and improving work efficiency.

[0004] To achieve the above purpose, the following technical solutions are adopted:

[0005] A mold capable of quickly replacing ejector sleeves includes a fixed bottom plate, ejector sleeves, ejector pins, and an ejector pin bottom plate and an ejector pin panel that are stacked on the fixed bottom plate from bottom to top in sequence; a mold base is further arranged above the ejector pin panel, and a rear mold core is installed in the mold base. A first fixing block is detachably installed at the bottom of the fixed bottom plate, and a first insert is detachably installed in the first fixing block; a second insert is detachably installed at the position corresponding to the first fixing block at the bottom of the ejector pin bottom plate; the lower part of the ejector sleeve is installed in the ejector pin panel, and the bottom of the ejector sleeve contacts the second insert; after the upper part of the ejector sleeve passes through the mold base, it is inserted into the rear mold core; the lower part of the ejector pin is installed in the first fixing block, and the bottom of the ejector pin contacts the first insert; the upper part of the ejector pin sequentially passes through the second insert and the ejector sleeve.

[0006] Further, a first installation groove is opened at the bottom of the fixed bottom plate, and the first fixing block is embedded in the first installation groove; a second installation groove is further opened at the bottom of the first fixing block, and the first insert is arranged in the second installation groove; a first locking hole penetrating into the first fixing block is further opened on the first insert, and a first screw is installed in the first locking hole, and the first screw is used to lock the first insert to the first fixing block.

[0007] Further, a first installation hole is opened at the top of the first fixing block; the cross-section of the first installation hole is in a T-shaped structure, and the vertical end of the T-shaped of the first installation hole faces upward, and the horizontal end of the T-shaped of the first installation hole is communicated with the second installation groove; a first limiting platform is further arranged at the bottom of the ejector pin, and the first limiting platform is arranged in the horizontal end of the T-shaped of the first installation hole.

[0008] Further, a third mounting groove is also formed at the position corresponding to the first mounting groove at the bottom of the thimble bottom plate, and the second insert is arranged in the third mounting groove; a second locking hole penetrating through to the thimble panel is also formed in the second insert, and a second screw is installed in the second locking hole, and the second screw is used to lock the second insert to the thimble panel.

[0009] Further, a second mounting hole is also formed at the top of the thimble panel; the cross-section of the second mounting hole is in a T-shaped structure, and the vertical end of the T-shape of the second mounting hole is arranged upward, and the horizontal end of the T-shape of the second mounting hole is communicated with the third mounting groove; a second limiting platform is also arranged at the bottom of the ejector barrel, and the second limiting platform is arranged in the horizontal end of the T-shape of the second mounting hole.

[0010] Further, the mold base includes two square irons and a B plate; the two square irons are respectively arranged at one end of the top of the fixed bottom plate, and the thimble bottom plate and the thimble panel are both arranged between the two square irons; the B plate is installed on the top of the two square irons, and the rear mold core is installed in the B plate; a guiding column is also connected between the fixed bottom plate and the B plate, and the thimble bottom plate and the thimble panel are both movably sleeved on the guiding column.

[0011] Adopting the above solution, the beneficial effects of the present utility model are:

[0012] By adding quick-release inserts in the fixed bottom plate and the thimble bottom plate, when replacing the ejector barrel, only the inserts need to be removed, and then the replacement can be completed, which greatly shortens the time for replacing the ejector barrel in the lower die of medium and large-sized molds and improves the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural view of the present utility model;

[0014] Figure 2 is a sectional view of the present utility model;

[0015] Among them, the description of the attached drawing reference numerals:

[0016] 1. Fixed bottom plate; 2. Ejector barrel; 3. Thimble; 4. Thimble bottom plate; 5. Thimble panel; 6. Rear mold core; 11. First fixing block; 12. First insert; 13. Second insert; 14. First screw; 15. First limiting platform; 16. Second screw; 17. Second limiting platform; 101. Square iron; 102. B plate; 103. Guiding column. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The present utility model will be described in detail below with reference to the attached drawings and specific embodiments.

[0018] Refer to Figures 1 to 2As shown in the figure, the utility model provides a mold capable of quickly replacing ejector sleeves, which includes a fixed bottom plate 1, ejector sleeves 2, ejector pins 3, and an ejector pin bottom plate 4 and an ejector pin panel 5 that are stacked on the fixed bottom plate 1 from bottom to top in sequence; above the ejector pin panel 5, there is also arranged a mold base, and a rear mold core 6 is installed in the mold base. In an embodiment, a first fixing block 11 is detachably installed at the bottom of the fixed bottom plate 1, and a first insert 12 is detachably installed in the first fixing block 11; at the corresponding position of the bottom of the ejector pin bottom plate 4 and the first fixing block 11, a second insert 13 is also detachably installed; the lower part of the ejector sleeve 2 is installed in the ejector pin panel 5, and the bottom of the ejector sleeve 2 contacts the second insert 13; the upper part of the ejector sleeve 2 passes through the mold base and is inserted into the rear mold core 6 for arrangement; the lower part of the ejector pin 3 is installed in the first fixing block 11, and the bottom of the ejector pin 3 contacts the first insert 12; the upper part of the ejector pin 3 sequentially passes through the second insert 13 and the ejector sleeve 2 for arrangement.

[0019] In this embodiment, the mold base includes two square steels 101 and a B plate 102; the two square steels 101 are respectively arranged at one end of the top of the fixed bottom plate 1, and both the ejector pin bottom plate 4 and the ejector pin panel 5 are arranged between the two square steels 101; the B plate 102 is installed on the top of the two square steels 101, and the rear mold core 6 is installed in the B plate 102; a guiding column 103 is also connected between the fixed bottom plate 1 and the B plate 102, and both the ejector pin bottom plate 4 and the ejector pin panel 5 are movably sleeved on the guiding column 103. The B plate 102 can be supported by the square steels 101, and the ejector pin bottom plate 4 and the ejector pin panel 5 can slide relative to the guiding column 103 to facilitate the demolding action.

[0020] In an embodiment, a first installation groove is opened at the bottom of the fixed bottom plate 1, and the first fixing block 11 is embedded in the first installation groove; a second installation groove is also opened at the bottom of the first fixing block 11, and the first insert 12 is arranged in the second installation groove; a first locking hole penetrating into the first fixing block 11 is also opened on the first insert 12, and a first screw 14 is installed in the first locking hole, and the first screw 14 is used to lock the first insert 12 to the first fixing block 11. The first insert 12 is locked to the first fixing block 11 by the first screw 14, which is convenient for disassembly.

[0021] Meanwhile, a first installation hole is opened at the top of the first fixing block 11; the cross-section of the first installation hole is of a T-shaped structure, and the vertical end of the T-shaped structure of the first installation hole faces upward, and the horizontal end of the T-shaped structure of the first installation hole is communicated with the second installation groove; a first limiting platform 15 is also arranged at the bottom of the ejector pin 3, and the first limiting platform 15 is arranged in the horizontal end of the T-shaped structure of the first installation hole. Designing the first installation hole into a T-shaped structure can improve the stability of the installation of the ejector pin 3.

[0022] In one embodiment, a third installation groove is further formed at the bottom of the thimble bottom plate 4 corresponding to the first installation groove, and the second insert 13 is arranged in the third installation groove; a second locking hole penetrating through to the thimble panel 5 is further formed in the second insert 13, and a second screw 16 is installed in the second locking hole. The second screw 16 is used to lock the second insert 13 to the thimble panel 5. The second insert 13 is locked to the thimble panel 5 by the second screw 16, which facilitates disassembly.

[0023] Meanwhile, a second installation hole is further formed at the top of the thimble panel 5; the cross-section of the second installation hole is of a T-shaped structure, and the vertical end of the T shape of the second installation hole is arranged upward, and the horizontal end of the T shape of the second installation hole is communicated with the third installation groove; a second limiting platform 17 is further arranged at the bottom of the sleeve 2, and the second limiting platform 17 is arranged in the horizontal end of the T shape of the second installation hole. Designing the second installation hole into a T-shaped structure can improve the stability of the installation of the sleeve 2.

[0024] Due to the different shapes of the products, the heights or positions of the sleeves 2 are different. In order to achieve the purpose of quickly disassembling and replacing the sleeves 2 of different models, the present utility model respectively makes a clearance through hole (the second installation groove, the third installation groove) on the fixed bottom plate 1 and the thimble bottom plate 4, and adds inserts. The inserts are locked to the first fixing block 11 and the thimble panel 5 with screws. In this solution, only the lower die needs to be removed, and then the second insert 13 and the first insert 12 are removed to replace the sleeve 2. It is no longer necessary to remove each plate like in traditional molds to replace the sleeve 2, which greatly shortens the time for replacing the sleeve 2 in the lower die of medium and large molds and improves work efficiency.

[0025] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A mold capable of quickly replacing ejector sleeves, comprising a fixed bottom plate, ejector sleeves, ejector pins, and an ejector pin bottom plate and an ejector pin panel that are stacked on the fixed bottom plate from bottom to top in sequence; a mold base is further arranged above the ejector pin panel, and a rear mold core is also installed in the mold base, characterized in that, A first fixing block is detachably installed at the bottom of the fixed bottom plate, and a first insert is also detachably installed in the first fixing block; a second insert is also detachably installed at the position corresponding to the first fixing block at the bottom of the ejector pin bottom plate; the lower part of the ejector sleeve is installed in the ejector pin panel, and the bottom of the ejector sleeve contacts the second insert; the upper part of the ejector sleeve passes through the mold base and is inserted into the rear mold core for arrangement; the lower part of the ejector pin is installed in the first fixing block, and the bottom of the ejector pin contacts the first insert; the upper part of the ejector pin sequentially passes through the second insert and the ejector sleeve in a movable manner.

2. The mold capable of quickly replacing the ejector sleeve according to claim 1, characterized in that, A first installation groove is formed at the bottom of the fixed bottom plate, and the first fixing block is embedded in the first installation groove; a second installation groove is further formed at the bottom of the first fixing block, and the first insert is arranged in the second installation groove; a first locking hole penetrating into the first fixing block is further formed in the first insert, and a first screw is installed in the first locking hole, and the first screw is used for locking the first insert to the first fixing block.

3. The mold with a thimble that can be quickly replaced according to claim 2, wherein A first installation hole is further formed at the top of the first fixing block; the cross section of the first installation hole is in a T-shaped structure, and the vertical end of the T shape of the first installation hole is arranged upward, and the horizontal end of the T shape of the first installation hole communicates with the second installation groove; a first limiting platform is further arranged at the bottom of the ejector pin, and the first limiting platform is arranged in the horizontal end of the T shape of the first installation hole.

4. The mold with a quickly replaceable ejector sleeve according to claim 3, wherein, A third installation groove is further formed at the position corresponding to the first installation groove at the bottom of the ejector pin bottom plate, and the second insert is arranged in the third installation groove; a second locking hole penetrating into the ejector pin panel is further formed in the second insert, and a second screw is installed in the second locking hole, and the second screw is used for locking the second insert to the ejector pin panel.

5. The mold with a quickly replaceable ejector sleeve according to claim 4, wherein, A second installation hole is further formed at the top of the ejector pin panel; the cross section of the second installation hole is in a T-shaped structure, and the vertical end of the T shape of the second installation hole is arranged upward, and the horizontal end of the T shape of the second installation hole communicates with the third installation groove; a second limiting platform is further arranged at the bottom of the ejector sleeve, and the second limiting platform is arranged in the horizontal end of the T shape of the second installation hole.

6. The mold with a quickly replaceable ejector sleeve according to any one of claims 1 to 5, characterized in that The mold base includes two side irons and a B plate; the two side irons are respectively arranged at one end of the top of the fixed bottom plate, and the ejector pin bottom plate and the ejector pin panel are both arranged between the two side irons; the B plate is installed at the top of the two side irons, and the rear mold core is installed in the B plate; a guide post is further connected between the fixed bottom plate and the B plate, and the ejector pin bottom plate and the ejector pin panel are both movably sleeved on the guide post.

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