Guide rail guide block assembly and hot bending forming device

Abstract

The present invention provides a guide rail and guide block assembly and a hot bending forming device, which relate to the technical field of hot bending forming. The present invention relates to a guide rail and guide block assembly, which comprises a first transition plate and a second transition plate from top to bottom, the first transition plate is fixedly connected to the second transition plate, a cylinder connector is fixedly provided on the upper part of the first transition plate, and guide rails and guide blocks cooperating with the guide rails are provided on both sides of the second transition plate. The present invention also relates to a hot bending forming device, which comprises three forming cylinders arranged from top to bottom, the guide rail and guide block assembly, an upper mold forming platen, a heating copper ring assembly, a lower mold positioning plate, and a lower mold ejection cylinder for lifting the lower mold positioning plate; each forming cylinder is respectively connected to a guide rail and guide block assembly. The hot bending forming device of the present invention is adopted to solve the problem that the existing hot bending forming machine is only suitable for small-sized products with small bending depth, and has a high forming difficulty coefficient and is not suitable for products with large bending depth.

Description

Technical Field

[0001] The invention relates to the technical field of hot bending applications, and in particular to a guide rail and guide block assembly and a hot bending forming device. Background Art

[0002] Hot bending is the process of heating the raw material to a temperature around its melting point and then using a mold to press it into shape. Hot bending technology can be applied to materials such as glass, wood, and plastic. At present, hot bending molds are developing rapidly.

[0003] At present, most 3D hot bending product forming machines adopt an integral forming method. This forming principle is only applicable to small-sized products with small bending depths. It is difficult to form products with large bending depths and is not suitable. It can easily cause eccentricity and dimensional instability problems.

[0004] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to those skilled in the art. Summary of the invention

[0005] The first purpose of the present invention is to provide a guide rail and guide block assembly, which can, under the action of the upper forming cylinder, make the guide rail and guide block assembly rise and fall vertically along the guide rail under the action of the guide block, and then press the mold below to ensure that the mold does not produce relative shaking during the bending forming process, so that the bending forming can proceed smoothly.

[0006] The present invention provides a guide rail and guide block assembly, which includes a first transition plate and a second transition plate from top to bottom, wherein the first transition plate is fixedly connected to the second transition plate, a cylinder connecting piece is fixedly provided on the upper part of the first transition plate, and guide rails and guide blocks cooperating with the guide rails are provided on both sides of the second transition plate.

[0007] It should be noted that, in actual application, the guide block slides on the predetermined track of the guide rail, which can transfer the kinetic energy of the forming cylinder and act on the upper mold forming platen, thereby driving the upper mold forming platen to perform hot bending forming of the mold.

[0008] Furthermore, an upper fixing block is fixedly provided on the upper part of the first transition plate, and two upper fixing blocks are provided, and the two upper fixing blocks are respectively arranged on both sides of the cylinder connecting part; when the cylinder push rod of the forming cylinder moves upward, the upper fixing block can drive the entire guide block to move by limiting the cylinder cylinder.

[0009] Furthermore, four guide rails are provided, and the four guide rails are evenly distributed on both sides of the second transition plate, and the guide rails are arranged along the vertical direction.

[0010] The second purpose of the present invention is to provide a hot bending forming device to solve the problem that the existing hot bending forming machine is only suitable for small-sized products with small bending depth, is difficult to form and is not suitable for products with large bending depth, and can easily cause eccentricity and dimensional instability.

[0011] The present invention provides a hot bending forming device, comprising three forming cylinders arranged in sequence from top to bottom, the guide rail guide block assembly, an upper mold forming plate, a heating copper ring assembly, a lower mold positioning plate and a lower mold ejection cylinder for lifting the lower mold positioning plate;

[0012] Each forming cylinder is respectively connected to a guide rail and guide block assembly, and the bottom of each guide rail and guide block assembly is respectively connected to the upper mold forming platen; during forming, a mold is arranged inside the heating copper ring;

[0013] Each of the forming cylinders drives a guide rail and guide block assembly to perform hot bending forming on the mold. First, one of the forming cylinders is used to press the mold and apply pressure to the flat area of ​​the product, and then the other two forming cylinders are used to press the mold and apply pressure to the flat or edge area of ​​the product, thereby achieving hot bending forming of the product.

[0014] It should be noted that the three forming cylinders are the first cylinder, the second cylinder and the third cylinder, and the first cylinder, the second cylinder and the third cylinder are respectively connected to the bottom of one of the guide rail and guide block assemblies mentioned above.

[0015] Furthermore, it also includes a mold transfer platform and a lower mold positioning plate, the lower mold positioning plate can move vertically at the center of the mold transfer platform, and the heating copper ring assembly is arranged above the mold transfer platform.

[0016] Furthermore, it also includes a base bracket, on which a desktop plate is arranged, and a limiting cylinder is arranged between the desktop plate and the lower mold positioning plate.

[0017] Furthermore, a lower mold ejection cylinder is fixedly arranged on the base bracket, and the lower mold ejection cylinder passes through the table top and is connected to the lower mold positioning plate to push the lower mold positioning plate to move up and down in the vertical direction.

[0018] Furthermore, the heating copper ring assembly includes a copper ring and a first fixing part and a second fixing part fixedly connected to the copper ring, the first fixing part and the second fixing part are respectively arranged on both sides of the copper ring; the structure surrounded by the copper ring is compatible with the structure of the mold to be formed.

[0019] Furthermore, the mold is respectively provided with a first pressure-bearing part, a second pressure-bearing part and a third pressure-bearing part, and the three pressure-bearing parts correspond to different molding cylinders respectively.

[0020] Furthermore, the mold includes a concave mold middle frame, an insert and a punch. The concave mold middle frame is arranged on the upper part of the punch. The concave mold middle frame is connected to the punch by snap-fitting. The insert is arranged between the concave mold middle frame and the punch.

[0021] The beneficial effects of the present invention are as follows:

[0022] The guide rail and guide block assembly of the present invention includes a first transition plate and a second transition plate from top to bottom, the first transition plate is fixedly connected to the second transition plate, a cylinder connecting piece is fixedly provided on the upper part of the first transition plate, and guide rails and guide blocks cooperating with the guide rails are provided on both sides of the second transition plate; the guide rail and guide block assembly using the present technical solution can, under the action of the forming cylinder, drive the guide rail and guide block assembly to move up and down in the vertical direction through the connection of the cylinder connecting piece, thereby performing hot bending forming on the mold, ensuring the stability of the hot bending forming environment, ensuring that the mold does not produce relative shaking during the bending forming process, and allowing the bending forming to proceed smoothly.

[0023] The hot bending forming device of the present invention comprises three forming cylinders arranged in sequence from top to bottom, the above-mentioned guide rail and guide block assembly, an upper mold forming plate, a heating copper ring assembly, a lower mold positioning plate and a lower mold ejection cylinder for lifting the lower mold positioning plate; each forming cylinder is respectively connected to a guide rail and guide block assembly, and the bottom of each guide rail and guide block assembly is respectively connected to the upper mold forming plate; during forming, a mold is arranged inside the heating copper ring; each forming cylinder drives a guide rail and guide block assembly to perform hot bending forming on the mold. The hot bending forming device using the present technical solution can solve the problem that the existing hot bending forming machine is only suitable for small-sized products with small bending depth, and is difficult to form for products with large bending depth, and is not suitable, and can easily cause eccentricity and dimensional instability. That is, the three forming cylinders drive the upper mold forming plate to press down through the guide rail and guide block assembly to perform hot bending forming on the mold in the heating copper ring assembly, and the lower mold ejection cylinder can drive the lower mold positioning plate upward to rise and fall. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic structural diagram of a guide rail and guide block assembly provided in Embodiment 1 of the present invention;

[0026] Figure 2A schematic diagram of the axial structure of a hot bending forming device provided in the second embodiment of the present invention;

[0027] Figure 3 A schematic diagram of the axial structure of the heating copper ring assembly provided in the second embodiment of the present invention;

[0028] Figure 4 A schematic diagram of the molding position of the molding cylinder provided in the second embodiment of the present invention;

[0029] Figure 5 This is a schematic structural diagram of the mold provided in Example 2 of the present invention.

[0030] Reference numerals:

[0031] 1-first cylinder; 2-second cylinder; 3-third cylinder; 4-first fixed plate; 5-second fixed plate; 6-mold transfer platform; 7-desktop plate; 8-guide rail and guide block assembly; 9-upper mold forming plate; 10-heating copper ring assembly; 11-lower mold positioning plate; 12-limiting cylinder; 13-lower mold ejection cylinder; 14-base bracket; 15-mold conveying device; 16-conveying platform;

[0032] 81 - first transition plate; 82 - second transition plate; 83 - upper fixed block; 84 - guide block; 85 - guide rail;

[0033] 101 - copper ring; 102 - first fixing part; 103 - second fixing part;

[0034] 171 - first pressure-bearing part; 172 - second pressure-bearing part; 173 - third pressure-bearing part; 174 - middle frame of the die; 175 - insert; 176 - punch. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Reference below Figure 1 - Figure 5 The technical solutions of the guide rail and guide block assembly and the hot bending forming device of the first and second embodiments are described in detail.

[0039] Embodiment 1

[0040] The specific implementation of this embodiment is as follows:

[0041] like Figure 1 As shown, the guide rail and guide block assembly 8 provided in this embodiment includes, from top to bottom, a first transition plate 81 and a second transition plate 82, the first transition plate 81 is fixedly connected to the second transition plate 82, a cylinder connecting piece is fixedly provided on the upper part of the first transition plate 81, and guide rails 85 and guide blocks 84 cooperating with the guide rails 85 are provided on both sides of the second transition plate 82.

[0042] It should be noted that, in actual application, the guide block 84 slides on the predetermined track of the guide rail 85, which can transmit the kinetic energy of the forming cylinder and act on the upper mold forming platen 9, thereby driving the upper mold forming platen 9 to perform hot bending of the mold.

[0043] Preferably, the guide rail 85 is a long strip structure, the guide block 84 is a block structure provided with a slide groove, and the guide rail and guide block assembly 8 slides on a predetermined track of the guide rail 85 along with the guide block 84 .

[0044] Specifically, an upper fixing block 83 is fixedly provided on the upper part of the first transition plate 81. Two upper fixing blocks 83 are provided, and the two upper fixing blocks 83 are respectively arranged on both sides of the cylinder connecting part; when the cylinder push rod of the forming cylinder moves upward, the upper fixing block 83 can drive the entire guide block 84 to move through the limiting cylinder cylinder.

[0045] Specifically, four guide rails 85 are provided, and the four guide rails 85 are evenly distributed on both sides of the second transition plate 82 , and the guide rails 85 are arranged along the vertical direction.

[0046] The guide rail and guide block assembly 8 of the present embodiment includes, from top to bottom, a first transition plate 81 and a second transition plate 82, the first transition plate 81 is fixedly connected to the second transition plate 82, a cylinder connecting piece is fixedly provided on the upper portion of the first transition plate 81, and guide rails 85 and guide blocks 84 cooperating with the guide rails 85 are provided on both sides of the second transition plate 82; the guide rail and guide block assembly 8 of the present technical solution can, under the action of the forming cylinder, drive the guide rail and guide block assembly 8 to move up and down in the vertical direction through the connection of the cylinder connecting piece, thereby performing hot bending forming on the mold, ensuring the stability of the hot bending forming environment, ensuring that the mold does not produce relative shaking during the bending forming process, and allowing the bending forming to proceed smoothly.

[0047] Embodiment 2

[0048] like Figure 1 -5, the hot bending forming device for panel module assembly provided in this embodiment includes three forming cylinders arranged in sequence from top to bottom, the above-mentioned guide rail and guide block assembly 8, the upper mold forming plate 9, the heating copper ring assembly 10, the lower mold positioning plate 11 and the lower mold ejection cylinder 13 for lifting the lower mold positioning plate 11; each forming cylinder is respectively connected to a guide rail and guide block assembly 8, and the bottom of each guide rail and guide block assembly 8 is respectively connected to the upper mold forming plate 9; during forming, a mold is arranged inside the heating copper ring; each forming cylinder drives a guide rail and guide block assembly 8 to perform hot bending forming on the mold, and firstly one of the forming cylinders is used to press the mold and pressurize the plane area of ​​the product, and then the other two forming cylinders are used to press the mold and pressurize the plane or edge area of ​​the product, so as to realize the hot bending forming of the product.

[0049] It should be noted that the three forming cylinders are the first cylinder 1, the second cylinder 2 and the third cylinder 3, and the first cylinder 1, the second cylinder 2 and the third cylinder 3 are respectively connected to the bottom of the above-mentioned guide rail and guide block assembly 8.

[0050] Specifically, it also includes a mold transfer platform 6 and a lower mold positioning plate 11 . The lower mold positioning plate 11 can move vertically at the center of the mold transfer platform 6 . The heating copper ring assembly 10 is arranged above the mold transfer platform 6 .

[0051] Specifically, it also includes a base bracket 14 , on which a desktop plate 7 is arranged, and a limiting cylinder 12 is arranged between the desktop plate 7 and the lower mold positioning plate 11 .

[0052] Specifically, a lower mold ejection cylinder 13 is fixedly provided on the base bracket 14 , and the lower mold ejection cylinder 13 passes through the table top 7 and is connected to the lower mold positioning plate 11 , so as to push the lower mold positioning plate 11 to move up and down in the vertical direction.

[0053] Specifically, the heating copper ring assembly 10 includes a copper ring 101 and a first fixing portion 102 and a second fixing portion 103 fixedly connected to the copper ring 101, and the first fixing portion 102 and the second fixing portion 103 are respectively arranged on both sides of the copper ring 101; the structure surrounded by the copper ring 101 is compatible with the structure of the mold to be formed.

[0054] Specifically, the mold is provided with a first pressure-bearing portion 171 , a second pressure-bearing portion 172 and a third pressure-bearing portion 173 , respectively, and the three pressure-bearing portions correspond to different molding cylinders.

[0055] Specifically, the mold includes a concave mold middle frame 174, an insert 175 and a punch 176. The concave mold middle frame 174 is arranged on the upper part of the punch 176. The concave mold middle frame 174 and the punch 176 are snap-connected. The insert 175 is arranged between the concave mold middle frame 174 and the punch 176.

[0056] The hot bending forming device of this embodiment includes three forming cylinders arranged in sequence from top to bottom, the guide rail and guide block assembly 8 of the above-mentioned embodiment 1, an upper mold forming plate 9, a heating copper ring assembly 10, a lower mold positioning plate 11 and a lower mold ejection cylinder 13 for lifting the lower mold positioning plate 11; each forming cylinder is respectively connected to a guide rail and guide block assembly 8, and the bottom of each guide rail and guide block assembly 8 is respectively connected to the upper mold forming plate 9; during forming, a mold is arranged inside the heating copper ring 101; each forming cylinder drives a guide rail and guide block assembly 8 to perform hot bending forming on the mold, the middle forming cylinder is used to press the mold and pressurize the flat area of ​​the product, and the forming cylinders on both sides pressurize the mold respectively so that the two edges of the product are bent downward. The hot bending forming device adopting the technical solution can solve the problem that the existing hot bending forming machine is only suitable for small-sized products with small bending depth, is difficult to form and is not suitable for products with large bending depth, and can easily cause eccentricity and dimensional instability. That is, the three forming cylinders drive the upper mold forming plate 9 to press down through the guide rail and guide block assembly 8, and bend the mold in the heating copper ring assembly 10 on both sides. The lower mold ejection cylinder 13 can drive the lower mold positioning plate 11 to rise and fall upward.

[0057] The forming method of the hot bending forming device of this embodiment is mainly to use three cylinders, namely the first cylinder 1, the second cylinder 2 and the third cylinder 3, which are pressed down separately for forming. During forming, the sequential action of any cylinder can be controlled. It can be used for single-sided bending products as well as double-sided bending products. This embodiment is preferably used for hot bending forming of double-sided bending products. The forming principle of double-sided bending products is as follows: first, use the middle second cylinder 2 to press the middle plane to prevent the product from moving left and right, and then use the first cylinder 1 and the third cylinder 3 at both ends to bend the mold to form the surface. Compared with the current forming method: the upper mold forming plate 9 of this embodiment presses the upper mold, and the mold presses the plate. During the forming process, the plate is very easy to move, resulting in dimensional instability. At the same time, the product height is small. For products with large product height, the equipment molding height and size are not enough, and products with large height cannot be formed.

[0058] The specific working process of the hot bending forming device of this embodiment is as follows: the mold is placed on the lower mold positioning plate 11, the mold outer shell is provided with a heating copper ring assembly 10, the ejection cylinder pushes the mold to the forming position, the copper ring 101 starts to heat the mold, and when the mold temperature reaches the forming temperature, the three forming cylinders are pressed down to form the mold, specifically, as follows Figure 4 As shown, the mold is respectively provided with a first pressure-bearing part 171, a second pressure-bearing part 172 and a third pressure-bearing part 173, wherein the second cylinder 2 presses down on the second pressure-bearing part 172 to tighten the mold, and then the first cylinder 1 and the third cylinder 3 press down on the first pressure-bearing part 171 and the third pressure-bearing part 173 of the mold respectively, and then continue to press down to bend the edge, that is, the hot bending forming process, the three cylinders work together to stably perform hot bending forming on both sides of the product.

[0059] The three forming cylinders of this embodiment are respectively fixed on the first fixed plate 4, the push rod of the forming cylinder is fixed on the guide rail and guide block assembly 8, the guide block 84 cooperates with the guide rail 85 to guide the forming pressure plate, the guide rail 85 is vertically fixed on the third fixed plate, the third fixed plate is fixed between the first fixed plate 4 and the second fixed plate 5, the heating copper ring 101 assembly 10 is placed between the upper and lower forming pressure plates, wherein the first fixing part 102 is fixed on the second fixed plate 5, and the second fixing part 103 is fixed on the side wall of the equipment, the lower mold positioning plate 11 is connected to the lower mold ejection cylinder 13, and the lower mold ejection cylinder 13 is fixed on the base bracket 14, the limiting cylinder 12 is used to control the height position of the lower mold positioning plate 11 connected to the lower mold ejection cylinder 13 when placing the mold, and the mold transfer platform 6 is used to connect the transition platform for transferring the mold between two workstations. It should be further explained that the mold transfer platform 6 is transmitted to the hot bending forming station through the mold conveying device 15. Specifically, the mold conveying device 15 is fixedly arranged on the transmission platform 16.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hot bending forming device, characterized in that: It includes three forming cylinders, a guide rail and guide block assembly, an upper mold forming platen, a heating copper ring assembly, a lower mold positioning plate and a lower mold ejection cylinder for lifting the lower mold positioning plate. Each forming cylinder is respectively connected to a guide rail and guide block assembly, and the bottom of each guide rail and guide block assembly is respectively connected to the upper mold forming platen; during forming, a mold is arranged inside the heating copper ring; Each of the forming cylinders drives a guide rail and guide block assembly to perform hot bending forming on the mold. First, one of the forming cylinders is used to press the mold and pressurize the plane area of ​​the product, and then the other two forming cylinders are used to press the mold and pressurize the plane or edge area of ​​the product, thereby achieving hot bending forming of the product; The mold is provided with a first pressure-bearing part, a second pressure-bearing part and a third pressure-bearing part, and the three pressure-bearing parts correspond to different molding cylinders respectively; The guide rail and guide block assembly includes a first transition plate and a second transition plate from top to bottom, the first transition plate is fixedly connected to the second transition plate, a cylinder connecting piece is fixedly provided on the upper part of the first transition plate, and guide rails and guide blocks cooperating with the guide rails are provided on both sides of the second transition plate.

2. The hot bending forming device according to claim 1, characterized in that: An upper fixing block is also fixedly arranged on the upper part of the first transition plate, and two upper fixing blocks are arranged, and the two upper fixing blocks are respectively arranged on both sides of the cylinder connecting piece.

3. The hot bending forming device according to claim 1, characterized in that: There are four guide rails, which are evenly distributed on both sides of the second transition plate, and are arranged along the vertical direction.

4. The hot bending forming device according to any one of claims 1 to 3, characterized in that: It also includes a mold transfer platform and a lower mold positioning plate. The lower mold positioning plate can move vertically at the center of the mold transfer platform. The heating copper ring assembly is arranged above the mold transfer platform.

5. The hot bending forming device according to claim 4, characterized in that: It also includes a base bracket, on which a desktop plate is arranged, and a limited position cylinder is arranged between the desktop plate and the lower mold positioning plate.

6. The hot bending forming device according to claim 5, characterized in that: A lower mold ejection cylinder is fixedly arranged on the base bracket. The lower mold ejection cylinder passes through the desktop plate and is connected to the lower mold positioning plate to push the lower mold positioning plate to move up and down in the vertical direction.

7. The hot bending forming device according to any one of claims 1 to 3, characterized in that: The heating copper ring assembly includes a copper ring and a first fixing part and a second fixing part fixedly connected to the copper ring, wherein the first fixing part and the second fixing part are respectively arranged on both sides of the copper ring; the structure surrounded by the copper ring is compatible with the structure of the mold to be formed.

8. The hot bending forming device according to any one of claims 1 to 3, characterized in that: The mold comprises a concave mold middle frame, an insert and a convex mold. The concave mold middle frame is arranged on the upper part of the convex mold. The concave mold middle frame is connected to the convex mold by snap-fitting. The insert is arranged between the concave mold middle frame and the convex mold.

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