Mold for polylactic acid forming

Abstract

The utility model relates to the technical field of polylactic acid production, and discloses a polylactic acid forming mold which comprises a lower mold base, an upper mold base arranged above the lower mold base and a machining assembly arranged above the lower mold base, and the machining assembly comprises a buffer mechanism arranged at the top of the lower mold base. A mounting mechanism is arranged on the side face of the buffering mechanism, the buffering mechanism comprises a guide column fixedly connected with the top of the lower die base, a guide sleeve is slidably connected to the outer wall of the guide column, the outer wall of the guide sleeve is fixedly connected with the inner wall of the side face of the lower die base, and a buffering spring is fixedly mounted at the bottom of the guide sleeve. The other end of the buffer spring is fixedly connected with the top of the lower die base, by arranging the buffer mechanism, when polylactic acid is formed through the die, the upper die base can be buffered through the buffer mechanism so as to prevent the upper die base from being damaged, and by arranging the mounting mechanism, the lower die plate and the upper die plate can be conveniently mounted and dismounted.

Description

Technical Field

[0001] The utility model relates to the technical field of polylactic acid production, in particular to a mold for polylactic acid molding. Background Art

[0002] Bio-based plastics molded from polylactic acid have a wide range of applications, including cans, cups, bottles, bags, and electronic and electrical packaging materials.

[0003] According to Chinese patent CN212948697U, a mold for forming polylactic acid is proposed. In the device, the dovetail platform and the dovetail groove are arranged in coordination to ensure accurate positioning of the upper mold and the lower mold when the mold is closed.

[0004] However, there may be some shortcomings in this patent. In the process of forming polylactic acid, different shapes of polylactic acid are often formed through different templates, and it is not convenient for operators to replace different templates in this device, which affects the forming efficiency of polylactic acid. For this reason, we propose a mold for forming polylactic acid. Utility Model Content

[0005] The purpose of the utility model is to provide a mold for polylactic acid molding, which solves the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mold for forming polylactic acid, comprising a lower mold base;

[0007] An upper die base disposed above the lower die base;

[0008] And a processing assembly is arranged above the lower die base, the processing assembly includes a buffer mechanism arranged on the top of the lower die base, and a mounting mechanism is arranged on the side of the buffer mechanism.

[0009] Preferably, the buffer mechanism includes a guide column fixedly connected to the top of the lower die base, the outer wall of the guide column is slidably connected with a guide sleeve, the outer wall of the guide sleeve is fixedly connected to the side inner wall of the upper die base, a buffer spring is fixedly installed on the bottom of the guide sleeve, and the other end of the buffer spring is fixedly connected to the top of the lower die base. By setting up the buffer mechanism, when the mold is in use, the upper die base will be pressed down to slide on the outer wall of the guide column through the guide sleeve. During the process of the guide sleeve being pressed down, the buffer spring will be compressed, and the buffer spring can play a buffering role on the upper die base during the pressing process to prevent it from being damaged during long-term stamping.

[0010] Preferably, the mounting mechanism comprises a T-shaped mounting block slidably arranged inside the lower mold base, a rectangular sleeve is arranged on the side surface of one end of the T-shaped mounting block, a connecting spring is fixedly installed on the inner wall of the rectangular sleeve, a moving block is fixedly installed on the other end of the connecting spring, the outer wall of the moving block is slidably connected to the bottom inner wall of the rectangular sleeve, a clamping block is fixedly installed on the other end of the moving block, the side wall of the clamping block is slidably connected to the side inner wall of the T-shaped mounting block, a lower mold plate is fixedly installed on the top of the T-shaped mounting block, a side plate is arranged on the side of the lower mold plate, and the side wall of the side plate is rotatably connected with a bidirectional threaded rod. The middle outer wall of the bidirectional threaded rod is fixedly installed with an adjusting handle 1, the outer wall of the bidirectional threaded rod is threadedly connected with a sleeve block, and the other end of the sleeve block is fixedly installed with a clamping plate, the side wall of the clamping plate is slidably connected to the outer wall of the lower template, the lower template is located below the upper mold base, and the bottom of the upper mold base is fixedly installed with an L-shaped top plate, the inner wall of the L-shaped top plate is slidably connected with a mounting plate, and the side wall of the mounting plate is fixedly installed with the upper template, and the inner wall of one end of the L-shaped top plate is threadedly connected with a bolt, and the bottom outer wall of the bolt is fixedly installed with an adjusting handle 2, and the top of the bolt is rotatably connected to a limiting block. The side wall of the limit block is slidably connected with the outer wall of the mounting plate. By setting the mounting mechanism, when the lower template needs to be installed, the operator can pull the moving block to move the moving block with the clamping block, and then insert the T-shaped mounting block into the lower mold base. Then, by releasing the moving block, the clamping block will be ejected under the reaction of the connecting spring, so that the outer wall of the clamping block is engaged with the side inner wall of the T-shaped mounting block, so as to achieve the effect of fixing the T-shaped mounting block, so as to complete the installation of the lower template. The operator can rotate the bidirectional threaded rod by turning the adjusting handle 1, and when the bidirectional threaded rod rotates During the process of moving the sleeve block, it will move with the clamping plate. After the two clamping plates move toward each other, they will fit with the outer wall of the lower template to fix the lower template. When the upper template needs to be installed, the operator can insert the mounting plate into the L-shaped top plate to make the side wall of the mounting plate fit with the side inner wall of the L-shaped top plate, and then turn the adjusting handle 2 to rotate with the bolt. During the rotation of the bolt, the limit block will rise with it to make the top of the limit block fit with the bottom of the upper mold base, and then the mounting plate will be limited by the side wall of the limit block.

[0011] Preferably, there are four guide pillars, which are equal in size and fixedly installed at the four corners of the top of the lower mold base at equal distances. Through this arrangement, the upper mold base can be limited by the guide pillars during the up and down movement, so that it moves smoothly.

[0012] Preferably, the inner wall of the guide sleeve is slidably connected to the outer wall of the guide column, and the outer wall of the guide sleeve is fixedly connected to the inner wall of the upper mold base. Through this arrangement, the guide sleeve can be moved on the outer wall of the guide column to limit the upper mold base.

[0013] Preferably, there are two rectangular sleeves, the two rectangular sleeves are equal in size, and the two rectangular sleeves are symmetrically distributed along the center plane of the T-shaped mounting block. Through this arrangement, the T-shaped mounting block can be easily installed and disassembled through the clamping block inside the rectangular sleeve.

[0014] Preferably, the bottom outer wall of the upper template is matched with the inner wall of the lower template. Through this arrangement, the upper template and the lower template can be closed to facilitate the molding of polylactic acid.

[0015] The utility model provides a mold for forming polylactic acid. The mold for forming polylactic acid has the following beneficial effects:

[0016] (1) The polylactic acid molding mold is provided with a buffer mechanism. When the mold is in use, the upper mold base is pressed down to slide on the outer wall of the guide pillar through the guide sleeve. During the downward pressing process of the guide sleeve, the buffer spring is compressed. The buffer spring can buffer the upper mold base during the downward pressing process to prevent it from being damaged during the long-term stamping process.

[0017] (2) The polylactic acid molding mold is provided with an installation mechanism. When the lower template needs to be installed, the operator can pull the moving block to move the moving block with the clamping block, and then insert the T-shaped mounting block into the lower mold base. Then, the moving block is released, and the clamping block is ejected under the reaction of the connecting spring, so that the outer wall of the clamping block is engaged with the inner wall of the side of the T-shaped mounting block, so as to achieve the effect of fixing the T-shaped mounting block, and complete the installation of the lower template. The operator can rotate the bidirectional threaded rod by turning the adjusting handle 1, and during the rotation of the bidirectional threaded rod, the operator can rotate the bidirectional threaded rod. During the movement of the sleeve block, it will move with the clamping plate. After the two clamping plates move toward each other, they will fit with the outer wall of the lower template to fix the lower template. When the upper template needs to be installed, the operator can insert the mounting plate into the L-shaped top plate to make the side wall of the mounting plate fit with the side inner wall of the L-shaped top plate, and then turn the adjusting handle 2 to rotate with the bolt. During the rotation of the bolt, the limit block will rise with it to make the top of the limit block fit with the bottom of the upper mold base, and then the mounting plate will be limited by the side wall of the limit block. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional structural schematic diagram of a polylactic acid molding mold of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the internal processing components of a mold for polylactic acid molding according to the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of an internal buffer mechanism for a polylactic acid molding mold of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the internal installation mechanism of a polylactic acid molding mold of the utility model;

[0022] Figure 5 This is a partial enlarged view of the A direction of a polylactic acid molding mold of the utility model;

[0023] Figure 6 This is an exploded view of the internal installation mechanism of a polylactic acid molding mold of the utility model;

[0024] Figure 7 The utility model is a partial structural schematic diagram of an internal mounting mechanism of a polylactic acid molding mold.

[0025] In the figure: 1. lower die base; 2. upper die base; 3. processing assembly; 31. buffer mechanism; 311. guide column; 312. guide sleeve; 313. buffer spring; 32. mounting mechanism; 321. T-type mounting block; 322. rectangular sleeve; 323. connecting spring; 324. moving block; 325. clamping block; 326. lower template; 327. side plate; 328. two-way threaded rod; 329. adjusting handle one; 3210. sleeve block; 3211. clamping plate; 3212. L-shaped top plate; 3213. mounting plate; 3214. upper template; 3215. bolt; 3216. adjusting handle two; 3217. limit block. DETAILED DESCRIPTION

[0026] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings.

[0027] Example 1

[0028] A preferred embodiment of a polylactic acid molding mold provided by the utility model is as follows Figures 1 to 7 As shown: a mold for forming polylactic acid, comprising a lower mold base 1;

[0029] An upper die base 2 is arranged above the lower die base 1;

[0030] And a processing assembly 3 is arranged above the lower mold base 1, the processing assembly 3 includes a buffer mechanism 31 arranged on the top of the lower mold base 1, and a mounting mechanism 32 is arranged on the side of the buffer mechanism 31. By setting the buffer mechanism 31, when the polylactic acid is molded by the mold, the buffer mechanism 31 can buffer the upper mold base 2 to prevent it from being damaged. By setting the mounting mechanism 32, the lower mold plate 326 and the upper mold plate 3214 can be easily installed and disassembled.

[0031] The buffer mechanism 31 includes a guide column 311 fixedly connected to the top of the lower die base 1, the outer wall of the guide column 311 is slidably connected to a guide sleeve 312, the outer wall of the guide sleeve 312 is fixedly connected to the inner wall of the side of the upper die base 2, and a buffer spring 313 is fixedly installed on the bottom of the guide sleeve 312, and the other end of the buffer spring 313 is fixedly connected to the top of the lower die base 1.

[0032] In this embodiment, by setting up a buffer mechanism 31, when the mold is in use, the upper mold base 2 will be pressed down to slide on the outer wall of the guide column 311 through the guide sleeve 312. During the downward pressing process of the guide sleeve 312, the buffer spring 313 will be compressed. The buffer spring 313 can buffer the upper mold base 2 during the downward pressing process to prevent it from being damaged during long-term stamping.

[0033] Example 2

[0034] Based on Example 1, a preferred embodiment of a polylactic acid molding mold provided by the present invention is as follows: Figures 1 to 7As shown: the mounting mechanism 32 includes a T-shaped mounting block 321 slidably arranged inside the lower mold base 1, a rectangular sleeve 322 is arranged on the side of one end of the T-shaped mounting block 321, a connecting spring 323 is fixedly installed on the inner wall of the rectangular sleeve 322, a moving block 324 is fixedly installed on the other end of the connecting spring 323, the outer wall of the moving block 324 is slidably connected to the bottom inner wall of the rectangular sleeve 322, a clamping block 325 is fixedly installed on the other end of the moving block 324, the side wall of the clamping block 325 is slidably connected to the side inner wall of the T-shaped mounting block 321, a lower mold plate 326 is fixedly installed on the top of the T-shaped mounting block 321, a side plate 327 is arranged on the side of the lower mold plate 326, a bidirectional threaded rod 328 is rotatably connected to the side wall of the side plate 327, and an adjustment handle is fixedly installed on the outer wall of the middle section of the bidirectional threaded rod 328 329, the outer wall of the bidirectional threaded rod 328 is threadedly connected with a sleeve block 3210, and the other end of the sleeve block 3210 is fixedly installed with a clamping plate 3211, the side wall of the clamping plate 3211 is slidably connected to the outer wall of the lower template 326, the lower template 326 is located below the upper mold base 2, and the bottom of the upper mold base 2 is fixedly installed with an L-shaped top plate 3212, the inner wall of the L-shaped top plate 3212 is slidably connected with a mounting plate 3213, and the side wall of the mounting plate 3213 is fixedly installed with an upper template 3214, and the inner wall of one end of the L-shaped top plate 3212 is threadedly connected with a bolt 3215, and the bottom outer wall of the bolt 3215 is fixedly installed with an adjusting handle 3216, the top of the bolt 3215 is rotatably connected to a limiting block 3217, and the side wall of the limiting block 3217 is slidably connected to the outer wall of the mounting plate 3213.

[0035] In the present embodiment, by setting the installation mechanism 32, when the lower template 326 needs to be installed, the operator can pull the moving block 324 to move the moving block 324 with the clamping block 325, and then insert the T-shaped mounting block 321 into the lower mold base 1, and then release the moving block 324. Under the reaction of the connecting spring 323, the clamping block 325 will be ejected, so that the outer wall of the clamping block 325 is engaged with the side inner wall of the T-shaped mounting block 321, so as to achieve the effect of fixing the T-shaped mounting block 321, so as to complete the installation of the lower template 326. The operator can rotate the adjusting handle 329 to rotate the bidirectional threaded rod 328, and during the rotation of the bidirectional threaded rod 328, the sleeve block 3210 will be moved. When the sleeve block 3210 moves, the clamping plate 3211 will move with it. After the two clamping plates 3211 move toward each other, they will fit with the outer wall of the lower template 326 to fix the lower template 326. When the upper template 3214 needs to be installed, the operator can insert the mounting plate 3213 into the L-shaped top plate 3212 to make the side wall of the mounting plate 3213 fit with the side inner wall of the L-shaped top plate 3212, and then rotate the adjusting handle 2 3216 to rotate the bolt 3215. When the bolt 3215 rotates, the limit block 3217 will rise to make the top of the limit block 3217 fit with the bottom of the upper mold base 2, and then the mounting plate 3213 will be limited by the side wall of the limit block 3217.

[0036] Furthermore, there are four guide pillars 311, which are equal in size and are fixedly installed at the four corners of the top of the lower mold base 1 at equal distances. Through this arrangement, the upper mold base 2 can be limited by the guide pillars 311 during the up and down movement, so that it moves smoothly.

[0037] Furthermore, the inner wall of the guide sleeve 312 is slidably connected to the outer wall of the guide column 311, and the outer wall of the guide sleeve 312 is fixedly connected to the inner wall of the upper mold base 2. Through this arrangement, the guide sleeve 312 can be moved on the outer wall of the guide column 311 to limit the upper mold base 2.

[0038] Furthermore, there are two rectangular sleeves 322 , which are equal in size and symmetrically distributed along the center plane of the T-shaped mounting block 321 . With this arrangement, the T-shaped mounting block 321 can be easily installed and removed through the clamping block 325 inside the rectangular sleeve 322 .

[0039] In addition, the bottom outer wall of the upper template 3214 is matched with the inner wall of the lower template 326. Through this arrangement, the upper template 3214 and the lower template 326 can be closed to facilitate the molding of polylactic acid.

[0040] The above is only an illustrative specific implementation method of the utility model, and is not intended to limit the scope of the utility model. Any equivalent changes and modifications made by any technician in this field without departing from the concept and principle of the utility model should fall within the scope of protection of the utility model. It should also be noted that the various components of the utility model are not limited to the above-mentioned overall application. The various technical features described in the specification of the utility model can be selected one by one or multiple ones can be selected and used in combination according to actual needs. Therefore, the utility model should naturally cover other combinations and specific applications related to the utility model points of this case.

Claims

1. A mold for forming polylactic acid, comprising a lower mold base (1); An upper die base (2) arranged above the lower die base (1); and a processing assembly (3) arranged above the lower die base (1), characterized in that: The processing assembly (3) comprises a buffer mechanism (31) arranged on the top of the lower die base (1), and a mounting mechanism (32) is arranged on the side of the buffer mechanism (31); The mounting mechanism (32) comprises a T-shaped mounting block (321) slidably arranged inside the lower die base (1); a rectangular sleeve (322) is arranged on the side surface of one end of the T-shaped mounting block (321); a connecting spring (323) is fixedly installed on the inner wall of the rectangular sleeve (322); a moving block (324) is fixedly installed on the other end of the connecting spring (323); an outer wall of the moving block (324) is slidably connected to the bottom inner wall of the rectangular sleeve (322); and the moving block (324) is slidably connected to the bottom inner wall of the rectangular sleeve (322). A clamping block (325) is fixedly installed on the other end of the T-shaped mounting block (321), and the side wall of the clamping block (325) is slidably connected to the side inner wall of the T-shaped mounting block (321). A lower template (326) is fixedly installed on the top of the T-shaped mounting block (321), and a side plate (327) is arranged on the side of the lower template (326). The side wall of the side plate (327) is rotatably connected to a bidirectional threaded rod (328), and an adjusting handle (328) is fixedly installed on the middle outer wall of the bidirectional threaded rod (328). 29), the outer wall of the bidirectional threaded rod (328) is threadedly connected to a sleeve block (3210), the other end of the sleeve block (3210) is fixedly installed with a clamping plate (3211), the side wall of the clamping plate (3211) is slidably connected to the outer wall of the lower mold plate (326), the lower mold plate (326) is located below the upper mold base (2), the bottom of the upper mold base (2) is fixedly installed with an L-shaped top plate (3212), the inner wall of the L-shaped top plate (3212) is slidably connected to A mounting plate (3213), the side wall of which is fixedly mounted an upper template (3214), an inner wall of one end of the L-shaped top plate (3212) is threadedly connected with a bolt (3215), an outer wall of the bottom of the bolt (3215) is fixedly mounted with an adjustment handle 2 (3216), the top of the bolt (3215) is rotatably connected to a limit block (3217), and the side wall of the limit block (3217) is slidably connected to the outer wall of the mounting plate (3213); The buffer mechanism (31) comprises a guide column (311) fixedly connected to the top of the lower die base (1); the outer wall of the guide column (311) is slidably connected to a guide sleeve (312); the outer wall of the guide sleeve (312) is fixedly connected to the inner wall of the side of the upper die base (2); a buffer spring (313) is fixedly installed at the bottom of the guide sleeve (312); the other end of the buffer spring (313) is fixedly connected to the top of the lower die base (1).

2. A polylactic acid molding mold according to claim 1, characterized in that: There are four guide pillars (311), the four guide pillars (311) are of equal size, and the four guide pillars (311) are fixedly installed at four corners of the top of the lower mold base (1) at equal distances.

3. A polylactic acid molding mold according to claim 1, characterized in that: The inner wall of the guide sleeve (312) is slidably connected to the outer wall of the guide pillar (311), and the outer wall of the guide sleeve (312) is fixedly connected to the inner wall of the upper die base (2).

4. A polylactic acid molding mold according to claim 1, characterized in that: There are two rectangular sleeves (322), the two rectangular sleeves (322) are equal in size, and the two rectangular sleeves (322) are symmetrically distributed along the center plane of the T-shaped mounting block (321).

5. The polylactic acid molding mold according to claim 1, characterized in that: The bottom outer wall of the upper template (3214) is adapted to the inner wall of the lower template (326).

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