Hot press molding device

Abstract

The utility model discloses a hot press forming device which comprises a machine base, a table top, a machine frame, an air cylinder, a hot press and a film drawing structure. A polylactic acid film is wound at the lower ends of the compression rollers, then wound at the upper end of the pull roller and then pulled into the film pulling structure at the other end of the machine base, then the adjusting screw is rotated to enable the pull roller to move upwards, and due to the fact that the pull roller is located between the two compression rollers, when the pull roller is pulled upwards, the pull roller can push the polylactic acid film. According to the polylactic acid film stretching device, the polylactic acid film located below the hot press can be in a straightened state, so that the polylactic acid film is stretched when the polylactic acid film is subjected to hot pressing processing, the polylactic acid film is in the straightened state, and the problem that the polylactic acid film is wrinkled or shrunk during hot pressing is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to polylactic acid film technical field, concretely is a kind of hot press forming device. BACKGROUND

[0002] Polylactic acid is a polyester polymer, it is also recyclable and renewable, and the film made of polylactic acid is concerned due to its excellent performance and application versatility, and the polylactic acid film will use hot press forming device when producing and processing, the hot press forming device stacks two or more layers of film together, and puts them into hot press equipment, which usually provides heating and pressure to promote the adhesive between the films to solidify and form a firm bond.

[0003] The existing patent CN220742109U discloses a hot press forming device, which comprises a storage box, a box door, a vertical rod and a top plate. The top plate is connected to the storage box by four vertical rods. A hydraulic cylinder is installed in the middle of the bottom of the top plate. A support plate is installed in the middle of the top of the storage box. A lower pressing plate is connected to the bottom of the hydraulic cylinder. Two identical electric heating plates are symmetrically installed on the bottom of the lower pressing plate and the top of the support plate, respectively. Two bottom plates are installed on the left and right sides of the bottom of the storage box, respectively. Two vertical plates are installed on the top of the two bottom plates, respectively. A set of stretching assemblies is installed on the top of the two vertical plates, respectively.

[0004] The above-mentioned patent or existing hot press forming device has the following problems:

[0005] The existing hot press forming device cannot ensure that the film is in a straight state when hot pressing, which may cause the film to wrinkle or shrink when the hot press is pressed down. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a hot press forming device to solve the problems raised in the background.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a hot press forming device, comprising a base, a table top is arranged on the base, a rack is arranged at the rear end of the base, a gas cylinder is arranged at the upper end of the rack, a hot press is arranged at the lower end of the rack, and the hot press is connected with the gas cylinder, a film pulling structure is arranged on the surface of the base, the film pulling structure comprises a fixed plate, an installation plate is arranged at the lower end of the fixed plate, a pressing roller is arranged above the fixed plate, a support is arranged on the fixed plate, a threaded sleeve is arranged at the upper end of the support, an adjusting screw is arranged in the threaded sleeve, an adjusting block is arranged in the support, and a pulling roller is assembled in the adjusting block.

[0008] Preferably, the film pulling structure is provided with two, which are respectively located at the left and right ends of the base.

[0009] Preferably, the surface of the support is provided with a scale.

[0010] Preferably, the surface of the fixing plate is provided with a support reinforcing plate connected with the fixing plate.

[0011] Preferably, the left and right ends of the inner side of the support are provided with positioning blocks, the edge of the adjusting block is provided with a positioning groove, and the positioning groove moves along the surface of the positioning block.

[0012] Preferably, the inside of the positioning block is provided with a positioning groove, and a rolling body is assembled in the positioning groove.

[0013] Preferably, the surface of the adjusting block is provided with a pressing pad attached to the inner side of the support.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] The polylactic acid film is wound on the lower end of the compression roller, then on the upper end of the pulling roller, then pulled into the film pulling structure at the other end of the base, then the adjusting screw is rotated to move the pulling roller upward, since the pulling roller is located between the two compression rollers, when the pulling roller is pulled upward, the pulling roller will push the polylactic acid film, so that the polylactic acid film under the hot presser is in a straightened state, so that the polylactic acid film is pulled during hot pressing, and the polylactic acid film is in a straightened state, avoiding the problem of wrinkles or shrinkage of the polylactic acid film during hot pressing. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the utility model;

[0017] Figure 2 It is a front view structural schematic view of the utility model;

[0018] Figure 3 It is a film pulling structure schematic view of the utility model;

[0019] Figure 4 It is a support overhead sectional structural schematic view of the utility model.

[0020] In the drawing: base-1, table-2, rack-3, air cylinder-4, hot presser-5, film pulling structure-6, fixing plate-61, mounting plate-62, support reinforcing plate-621, compression roller-63, support-64, threaded sleeve-65, adjusting screw-66, adjusting block-67, pulling roller-68, scale-681, positioning groove-640, positioning block-641, positioning groove-642, rolling body-643, pressing pad-645. DETAILED DESCRIPTION

[0021] In order to further explain the technical scheme of the utility model, the following specific embodiments are described in detail.

[0022] Please refer to Figure 1 and Figure 2 The utility model provides a hot press forming device, including frame 1, the frame 1 is installed with mesa 2, the rear end of frame 1 is fixed with rack 3 through bolt, the upper end of rack 3 is assembled with cylinder 4, and the lower end of rack 3 is provided with hot press 5, and hot press 5 is connected with cylinder 4, and the surface of frame 1 is provided with pull film structure 6.

[0023] The polylactic acid film moves on the surface of the mesa 2, then the cylinder 4 drives the hot press 5 to press down on the surface of the polylactic acid film, and then the heated hot press 5 performs hot press forming on the polylactic acid film.

[0024] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The utility model provides a hot press forming device, and the pull film structure 6 includes fixed plate 61, and the lower end of fixed plate 61 is welded with mounting plate 62, and the surface of mounting plate 62 is integrally formed with support reinforcing plate 621, the support reinforcing plate 621 is welded with fixed plate 61, is used for supporting the effect of fixed plate 61, improves the stability, and the edge of frame 1 is fixed with mounting plate 62 through bolt, so as to realize that fixed plate 61 is installed at the end of frame 1, and the left and right two ends of frame 1 are both installed with fixed plate 61.

[0025] The left and right two ends of fixed plate 61 are both assembled with rotatably connected compression roller 63, and the middle of fixed plate 61 is fixed with support 64 through bolt, the upper end of support 64 is installed with threaded sleeve 65, the threaded sleeve 65 is assembled with adjusting screw 66 which is screw connected with the threaded sleeve 65, the inside of support 64 is provided with adjusting block 67, and the adjusting block 67 is rotatably connected with adjusting screw 66, the adjusting block 67 is assembled with rotatably connected pull roller 68, and the surface of support 64 is provided with scale 681, so as to check the adjusting condition, so as to facilitate it.

[0026] The left and right two ends of the inside of support 64 are integrally formed with positioning block 641, the edge of adjusting block 67 is provided with positioning groove 640, the positioning groove 640 moves along the surface of positioning block 641, is used for the effect of positioning adjusting block 67, so that adjusting block 67 is stable when moving, and the inside of positioning block 641 is provided with positioning groove 642, the positioning groove 642 is assembled with rolling body 643, the rolling body 643 is in the positioning groove 642, improves the flexibility of adjusting block 67 movement, the surface of adjusting block 67 is provided with pressure pad 645, and the pressure pad 645 is attached to the inside of support 64, which improves the stability of adjusting block 67.

[0027] The polylactic acid film is wound around the lower end of the pressing roller 63, then wound around the upper end of the pulling roller 68, then pulled into the film pulling structure 6 at the other end of the base 1, then the adjusting screw 66 is rotated, since the adjusting screw 66 is threadedly connected with the threaded sleeve 65, when the adjusting screw 66 is rotated, the adjusting screw 66 will move upward, thereby pulling the adjusting block 67 to move upward in the support 64, at the same time, the pulling roller 68 will be pulled upward, since the pulling roller 68 is located between the two pressing rollers 63, when the pulling roller 68 is pulled upward, the pulling roller 68 will push the polylactic acid film, so that the polylactic acid film under the heat press 5 will be in a straightened state, so as to realize the film pulling of the polylactic acid film during the heat pressing process of the polylactic acid film, so that the polylactic acid film is in a straightened state, avoiding the problem of wrinkles or shrinkage of the polylactic acid film during the heat pressing.

[0028] The above only describes the preferred examples of the present application, and is not used to limit the present application, although the present application is described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A hot press forming device, comprising a base (1), a table (2) is arranged on the base (1), a frame (3) is arranged at the rear end of the base (1), a pneumatic cylinder (4) is arranged at the upper end of the frame (3), a hot press (5) is arranged at the lower end of the frame (3), and the hot press (5) is connected with the pneumatic cylinder (4), characterized in that: Also include pull film structure (6), the surface of the machine base (1) is provided with pull film structure (6), pull film structure (6) includes fixed plate (61), the lower end of fixed plate (61) is provided with mounting plate (62), the upper of fixed plate (61) is provided with compression roller (63), the upper of fixed plate (61) is provided with support (64), the upper of support (64) is provided with threaded sleeve (65), the middle of threaded sleeve (65) is provided with adjusting screw (66), the inside of support (64) is provided with adjusting block (67), adjusting block (67) is assembled with pull roller (68) in the middle. ​ 2. The hot press forming apparatus according to claim 1, characterized by: Pull film structure (6) is provided with two, respectively in the left and right ends of machine base (1).

3. The hot press forming apparatus according to claim 2, characterized by: The surface of support (64) is provided with scale (681).

4. The hot press forming apparatus according to claim 2, characterized by: The surface of fixed plate (61) is provided with support reinforcing plate (621), and the support reinforcing plate (621) is connected with the fixed plate (61).

5. The hot press forming apparatus according to claim 1, characterized by: The left and right ends of the inner side of support (64) are provided with positioning block (641), and the edge of adjusting block (67) is provided with positioning groove (640), and the positioning groove (640) moves along the surface of positioning block (641).

6. The hot press forming apparatus according to claim 5, characterized by: The inside of positioning block (641) is provided with positioning groove (642), and the positioning groove (642) is assembled with rolling body (643) in the middle.

7. The hot press forming apparatus according to claim 1, characterized by: The surface of adjusting block (67) is provided with pressure pad (645), and the pressure pad (645) is attached to the inner side of support (64).

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