Pressing die for acryl product with multi-shape structure

Abstract

The utility model relates to the technical field of acryl processing, in particular to an acryl multi-modeling structure product pressing die which comprises an upper die assembly, a lower die assembly and a plate clamp. The lower die assembly comprises a lower die base and a lower die connected to the lower die base. The lower die is obliquely connected to the lower die base; the upper die assembly comprises a pressing die matched with the contour edge of the lower die and a lifting structure connected with the pressing die. The plate clamp is arranged between the upper die assembly and the lower die assembly, and the plate clamp is connected with the upper die assembly in a sliding mode. Through the obliquely arranged lower die and the pressing die matched with the outline edge of the lower die, integration of product dies of spherical and cylindrical structures is achieved, production procedures of acryl multi-shape product structures are reduced, meanwhile, undesirable phenomena such as wrinkles and tearing after a plate is formed are reduced, the demolding difficulty is lowered, and the production efficiency is improved. The product quality is improved and the reject ratio is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of acrylic processing, in particular to a pressing die for an acrylic multi-modeling structure product. Background Art

[0002] Acrylic is widely used in various fields such as advertising, handicrafts, kitchen and bathroom appliances, construction industry and interior design due to its excellent impact resistance, aging resistance and high light transmittance.

[0003] With the increasing application of acrylic, the requirements for the shape of acrylic products are getting higher and higher. Figure 1 As shown, many fields currently require acrylic multi-shaped structural products composed of two different structural structures, such as a spherical or ellipsoidal structure and a cylindrical structure; in the production process of such acrylic multi-shaped products, the conventional method is to use different molds to produce two different structures respectively, and then perform bulk polymerization between the two different structural products. This production process is cumbersome and has low production efficiency. Utility Model Content

[0004] In order to solve the problem of complicated production process of acrylic multi-shaped structure products in the prior art, the utility model provides a pressing mold for acrylic multi-shaped structure products. The pressing mold realizes the integration of spherical and cylindrical structure product molds through the cooperation of the obliquely arranged lower mold and upper mold, reduces the production process of the acrylic multi-shaped product structure, and solves the problem of complicated production process of acrylic multi-shaped structure products in the prior art.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A pressing die for acrylic multi-shaped structural products, comprising an upper die assembly, a lower die assembly and a plate fixture; wherein:

[0007] The lower mold assembly includes a lower mold base and a lower mold connected to the lower mold base;

[0008] The lower mold includes a spherical mold and a cylindrical mold connected to each other;

[0009] The spherical mold is a quarter of a spherical structure;

[0010] The cylindrical mold is a half cylindrical structure;

[0011] The lower die is obliquely connected to the lower die base;

[0012] The upper die assembly includes a pressing die adapted to the contour edge of the lower die, and a lifting structure connected to the pressing die;

[0013] The plate clamp is arranged between the upper die assembly and the lower die assembly, and the plate clamp is slidably connected to the upper die assembly.

[0014] Optionally, the angle between the axis of the cylindrical structure and the vertical line is 50°-60°.

[0015] Optionally, the angle between the axis of the cylindrical structure and the vertical line is 55°.

[0016] Optionally, the spherical mold and the cylindrical mold are both made of high temperature resistant plastic.

[0017] Optionally, the lower die assembly further includes a plurality of lower die support rods; the lower die is connected to the lower die base via the lower die support rods.

[0018] Optionally, the pressing mold is a tubular structure.

[0019] Optionally, the upper mold assembly further includes an upper mold top plate; the lifting structure is connected to the pressing mold via the upper mold top plate.

[0020] Optionally, the upper die assembly further includes a plurality of upper die connecting rods; the pressing die is connected to the upper die top plate via the upper die connecting rods.

[0021] Optionally, the lifting structure is a hydraulic lifting column.

[0022] Optionally, a control module is further included; the lifting structure is connected to the control module by signal.

[0023] The beneficial effects of the utility model are:

[0024] The acrylic multi-shaped structural product pressing mold provided by the utility model realizes the integration of spherical and cylindrical structural product molds through an inclined lower mold and a pressing mold adapted to the contour edge of the lower mold, thereby reducing the production process of the acrylic multi-shaped product structure and reducing the occurrence of undesirable phenomena such as wrinkles and tears after the plate is formed, reducing the difficulty of demoulding, improving product quality, and reducing the defective rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0026] Figure 1 It is a structural schematic diagram of the acrylic multi-shaped structural product in the utility model;

[0027] Figure 2 It is a simplified structure of the mold for pressing acrylic multi-shaped structural products in the utility model. Figure 1 ;

[0028] Figure 3It is a simplified structure of the mold for pressing acrylic multi-shaped structural products in the utility model. Figure 2 .

[0029] In the figure: 1-upper mold assembly; 11-pressing mold; 111-first pressing section; 112-second pressing section; 12-lifting structure; 13-upper mold top plate; 14-upper mold connecting rod; 2-lower mold assembly; 21-lower mold base; 22-lower mold; 221-spherical mold; 222-cylindrical mold; 23-lower mold support rod; 3-acrylic sheet. DETAILED DESCRIPTION

[0030] The present utility model is now further described in detail. The embodiments described below are exemplary and intended to be used to explain the present utility model, but cannot be understood as limiting the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present utility model.

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0032] In order to solve the problem of complicated production process of acrylic multi-shaped structure products in the prior art, the utility model provides a pressing mold for acrylic multi-shaped structure products, see Figure 2 , Figure 3 As shown, the acrylic multi-shaped structure product pressing mold includes an upper mold assembly 1, a lower mold assembly 2 and a plate clamp. The upper mold assembly 1 cooperates with the lower mold assembly 2, and the acrylic plate 3 clamped by the plate clamp is used as a raw material to realize the pressing and forming of the acrylic multi-shaped product; wherein, the lower mold assembly 2 includes a lower mold base 21, and a lower mold 22 connected to the lower mold base 21; the specific structure and size of the lower mold 22 are determined according to the acrylic multi-shaped structure product to be produced; for details, see Figure 1As shown, the present invention takes an acrylic product in which a spherical structure and a cylindrical structure are connected as an example to illustrate the pressing mold provided by the present invention; the lower mold 22 in the present invention includes a connected spherical mold 221 and a cylindrical mold 222, the radius of the bottom cross section of the spherical mold 221 is the same as the radius of the cross section of the cylindrical mold 222, and the two are concentrically arranged; in order to ensure production efficiency, the present invention preferably uses the spherical mold 221 as a quarter spherical structure; and it should be emphasized that the spherical structure in the present invention can be a spherical structure or an ellipsoidal or other spherical-like structure; at the same time, the cylindrical mold 222 is a half cylindrical structure; in the production process, the upper mold 22 is pressed and formed twice, and then the products obtained by the two pressing and forming are connected by body polymerization or the like, which reduces the manufacturing process and also reduces the number of seams on the finished product, thus helping to improve product quality.

[0033] Furthermore, in order to improve production efficiency and reduce demoulding difficulty, the utility model preferably connects the lower mold 22 obliquely to the lower mold base 21 to reduce undesirable phenomena such as wrinkles and tears after the sheet is formed, improve the effect, and ensure smooth demoulding.

[0034] It should be noted that the lower mold 22 of the present invention is obliquely connected to the lower mold base 21, which specifically means that the axis of the cylindrical mold 222 in the lower mold 22 is not parallel to the vertical line, that is, there is an angle between the axis and the vertical line, and the angle is an acute angle.

[0035] In the traditional press forming process, the axis of the lower mold is usually set parallel to the vertical line, or the radial direction of the lower mold is set parallel to the vertical line. This mold operation process is easy to cause wrinkles on the sheet after forming, that is, wood ears, which affect demolding. The utility model connects the lower mold 22 to the lower mold base 21 at an angle, which greatly reduces the occurrence of undesirable phenomena such as wrinkles and tearing after the sheet is formed.

[0036] The upper mold assembly 1 in the utility model includes a pressing mold 11 adapted to the contour edge of the lower mold 22, and a lifting structure 12 connected to the pressing mold 11. The pressing mold 11 is lifted and lowered by the lifting structure 12 to achieve pressing of the acrylic sheet, thereby achieving the pressing and forming of multi-shaped structural products.

[0037] Specifically, the preferred pressing mold 11 of the utility model includes a first pressing section 111 and a second pressing section 112 connected to each other; wherein the first pressing section 111 is adapted to the axial contour lines of the spherical mold 221 and the cylindrical mold 222, that is, the first pressing section 111 includes a semicircular structure, and both ends of the semicircular structure are connected to a straight line segment; the second pressing section 112 is adapted to the cross-sectional contour of the cylindrical mold 222, and is a semicircular structure adapted to the cross-sectional profile of the cylindrical mold 222.

[0038] The sheet clamp in the utility model is used to fix the acrylic sheet 3. The sheet clamp is arranged between the upper mold assembly 1 and the lower mold assembly 2, and the sheet clamp is slidably connected to the upper mold assembly 1. The sheet clamp can be slidably connected to the upper mold assembly 1 through an electric hoist or a pulley, so that the height of the acrylic sheet 3 can be adjusted by moving the sheet clamp up and down.

[0039] During the working process of the pressing mold for the acrylic multi-shaped structure product provided by the utility model, the acrylic plate 3 is placed between the upper mold assembly 1 and the lower mold assembly 2 by a plate clamp (not shown in the figure), and then the pressing mold is moved into an oven, heated to the deformation temperature of the acrylic plate 3, and then kept warm. After the acrylic plate 3 softens, the acrylic plate 3 droops as a whole, and the acrylic plate 3 is driven downward by the plate clamp to make the acrylic plate 3 fit the top of the lower mold 22, and then the pressing mold 11 is driven downward by the lifting structure 12 until the pressing mold 11 moves to the bottom of the lower mold 22, so that the pressing mold 11 fits the softened acrylic plate 3, and the air between the acrylic plate 3 and the lower mold 22 is discharged. Under the cooperation of the pressing mold 11 and the lower mold 22, the acrylic plate 3 fits the lower mold 22, and then the acrylic multi-shaped structure product can be obtained through the cooling and shaping treatment steps.

[0040] During the pressing process, a uniform speed and step-by-step pressing process may be adopted; and components such as pressure sensors may be provided to monitor the pressing process; this article does not limit the specific pressing process.

[0041] The acrylic multi-shaped structural product pressing mold provided by the utility model realizes the integration of spherical and cylindrical structural product molds through the inclined lower mold 22 and the pressing mold 11 adapted to the contour edge of the lower mold 22, thereby reducing the production process of the acrylic multi-shaped product structure and reducing the occurrence of undesirable phenomena such as wrinkles and tears after the plate is formed, reducing the demoulding difficulty, improving product quality, and reducing the defective rate.

[0042] To ensure smooth demoulding, the utility model preferably sets the angle between the axis of the cylindrical structure and the vertical line to be 50°-60°, and further preferably sets the angle between the axis of the cylindrical structure and the vertical line to be 55°.

[0043] In order to further reduce the generation of wrinkles after molding, the present invention preferably uses high temperature resistant plastics as materials for the spherical mold 221 and the cylindrical mold 222 to facilitate thermoplastic molding of the acrylic sheet 3 and avoid stress concentration and wrinkles.

[0044] Specifically, the utility model preferably uses polyphenylene ether as the high temperature resistant plastic.

[0045] To facilitate demoulding and other operations, the utility model preferably includes a plurality of lower mold assembly 2 further comprising lower mold support rods 23; the lower mold 22 is connected to the lower mold base 21 via the lower mold support rods 23; the number of lower mold support rods 23 may be determined according to the size of the lower mold 22; the height of each lower mold support rod 23 is determined according to its position.

[0046] In order to further reduce stress concentration, the present invention preferably configures the pressing mold 11 to be a tubular structure; and a high temperature resistant flexible material may be added to the outer side of the pressing mold 11 to prevent the acrylic sheet 3 from tearing.

[0047] The upper mold assembly 1 of the utility model preferably also includes an upper mold top plate 13; the lifting structure 12 is connected to the pressing mold 11 through the upper mold top plate 13, so that the lifting mechanism 12 can drive the upper mold top plate 13 to rise and fall, and then drive the acrylic plate 3 to rise and fall through the upper mold top plate 13.

[0048] Furthermore, the upper mold assembly 1 of the utility model preferably also includes a plurality of upper mold connecting rods 14; the pressing mold 11 is connected to the upper mold top plate 13 through the upper mold connecting rods 14; the number of upper mold connecting rods 14 is determined according to the size of the pressing mold 11; the height of each upper mold connecting rod 14 is determined according to its position.

[0049] In the present invention, the lifting structure 12 is preferably a hydraulic lifting column; and the pressing mold 11 is preferably lifted and lowered by four hydraulic lifting columns.

[0050] Furthermore, the utility model preferably comprises that the acrylic multi-shaped structural product pressing mold also includes a control module, which can be a PLC controller; preferably, the lifting structure 12 and the electric hoist are both connected to the control module signal to facilitate remote control of the pressing process; if a pressure sensor is provided in the pressing mold, preferably, the pressure sensor is also connected to the control module signal to facilitate control of the lifting and lowering of the pressing mold 11 and the acrylic sheet 3 according to the detection result of the pressure sensor.

[0051] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A pressing die for acrylic multi-shaped structural products, characterized in that: It comprises an upper die assembly (1), a lower die assembly (2) and a plate fixture; wherein: The lower mold assembly (2) comprises a lower mold base (21) and a lower mold (22) connected to the lower mold base (21); The lower mold (22) comprises a spherical mold (221) and a cylindrical mold (222) connected to each other; The spherical mold (221) is a quarter spherical structure; The cylindrical mold (222) is a half cylindrical structure; The lower mold (22) is obliquely connected to the lower mold base (21); The upper die assembly (1) comprises a pressing die (11) adapted to the contour edge of the lower die (22), and a lifting structure (12) connected to the pressing die (11); The plate clamp is arranged between the upper mold assembly (1) and the lower mold assembly (2), and the plate clamp is slidably connected to the upper mold assembly (1).

2. The acrylic multi-shaped structure product pressing mold according to claim 1, characterized in that: The angle between the axis of the cylindrical structure and the vertical line is 50°-60°.

3. The acrylic multi-shaped structure product pressing mold according to claim 2, characterized in that: The angle between the axis of the cylindrical structure and the vertical line is 55°.

4. The acrylic multi-shaped structure product pressing mold according to any one of claims 1 to 3, characterized in that: The spherical mold (221) and the cylindrical mold (222) are both made of high-temperature resistant plastic.

5. The acrylic multi-shaped structure product pressing mold according to claim 4, characterized in that: The lower die assembly (2) further comprises a plurality of lower die support rods (23); the lower die (22) is connected to the lower die base (21) via the lower die support rods (23).

6. The acrylic multi-shaped structure product pressing mold according to claim 4, characterized in that: The pressing mold (11) is a tubular structure.

7. The acrylic multi-shaped structure product pressing mold according to claim 4, characterized in that: The upper die assembly (1) further comprises an upper die top plate (13); the lifting structure (12) is connected to the pressing die (11) via the upper die top plate (13).

8. The acrylic multi-shaped structure product pressing mold according to claim 7, characterized in that: The upper die assembly (1) further comprises a plurality of upper die connecting rods (14); the pressing die (11) is connected to the upper die top plate (13) via the upper die connecting rods (14).

9. The acrylic multi-shaped structure product pressing mold according to claim 4, characterized in that: The lifting structure (12) is a hydraulic lifting column.

10. The acrylic multi-shaped structure product pressing mold according to claim 4, characterized in that: It also includes a control module; the lifting structure (12) is connected to the control module by signal.

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