Arc-shaped plate extrusion die and cold press applying same

Abstract

An arc-shaped plate extrusion die and a cold press applying the same are used for bending plates in the gluing forming process of a plurality of layers of thin plates and comprise a lower die base and an upper die base which are wood dies. A U-shaped groove is formed in the top of the lower die base, and the bottom of the upper die base is matched with the groove. The lower die base is divided into two vertical parts and a horizontal part, the two vertical parts are located at the two ends of the horizontal part respectively, the vertical parts extend upwards and are provided with arc surfaces, and the arc surfaces are in smooth transition with the top surface of the horizontal part; the bottom of the upper die base is divided into a horizontal section and two upper die arc sections, the two upper die arc sections are located at the two ends of the horizontal section respectively, and a pressing space used for containing a plate to be machined is reserved between the upper die base and the lower die base. The bending machining of a plate can be realized through the matching of the wooden upper die holder and the wooden lower die holder, and a complicated hardware die opening process is not needed, so that the production period is greatly shortened, and meanwhile, the manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of plate production and forming, in particular to an arc plate extrusion die and a cold press machine using the same. Background Art

[0002] With the diversification of the market, arc structure design of product cabinets is more common. In furniture production, arc bending is done by using hardware mold opening equipment to open the mold, and then placing the plate in the mold for hot pressing to bend the plate. Due to product functional requirements or structural characteristics, the production cycle of arc bending plates of different sizes using hardware hot pressing mold opening is long and the manufacturing cost is high. Utility Model Content

[0003] In view of the problems raised by the background technology, the purpose of the utility model is to propose an arc plate extrusion die and a cold press machine using the same, which solves the problems of long production cycle and high cost of arc bent plates manufactured by existing hardware hot pressing molds.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] An arc plate extrusion die is used for bending a plate in a process of gluing and assembling several layers of thin plates, comprising a lower die base and an upper die base, wherein the lower die base and the upper die base are wooden molds;

[0006] The top of the lower die base is provided with a U-shaped groove, the bottom of the upper die base cooperates with the groove, and the upper die base is arranged on the top of the lower die base;

[0007] The lower die base is divided into two vertical parts and a horizontal part, the two vertical parts are respectively located at two ends of the horizontal part, the vertical part is extended upward, and the vertical part is provided with an arc surface, and the arc surface smoothly transitions with the top surface of the horizontal part;

[0008] The bottom of the upper die seat is divided into a horizontal section and two upper die arc sections, and the two upper die arc sections are respectively located at two ends of the horizontal section;

[0009] The horizontal section cooperates with the horizontal portion, and the upper die arc sections on both sides cooperate with the arc surface, so that a pressing space for placing the plate to be processed is reserved between the upper die seat and the lower die seat.

[0010] Preferably, the lower die base is composed of a plurality of clamping plates connected together, the plurality of clamping plates are sequentially connected front to back along the plate thickness direction, and a glue layer is provided between two adjacent clamping plates;

[0011] The upper die base is composed of a plurality of clamping plates connected together, and the plurality of clamping plates are sequentially connected front to back along the plate thickness direction, and a glue layer is provided between two adjacent clamping plates.

[0012] Preferably, the lower die base is provided with a plurality of steel bars, and the steel bars penetrate the lower die base along the arrangement direction of the plurality of clamping plates;

[0013] The upper die seat is provided with a plurality of the steel bars, and the steel bars penetrate the upper die seat along the arrangement direction of the plurality of the clamping plates.

[0014] Preferably, the plurality of steel bars of the lower die base are arranged parallel to each other, the plurality of steel bars are arranged in an array on the same horizontal plane, and each of the vertical portions is penetrated by at least one steel bar;

[0015] The plurality of steel bars of the upper die seat are arranged parallel to each other, and the plurality of steel bars are arranged in an array on the same horizontal plane.

[0016] Preferably, a lower thin steel plate is detachably provided on the top of the lower die base, the lower thin steel plate comprises a first horizontal section and two first vertical sections, the two first vertical sections are respectively provided at two ends of the first horizontal section, the first vertical section extends upward, the connection between the first vertical section and the first horizontal section is an arc transition to form a first arc connection portion, the first arc connection portion is matched with the arc surface and arranged oppositely;

[0017] An upper thin steel plate is detachably provided at the bottom of the upper mold base, and the upper thin steel plate includes a second horizontal section and two second vertical sections. The two second vertical sections are respectively provided at both ends of the second horizontal section. The second vertical section extends upward, and an arc transition is formed at the connection between the second vertical section and the second horizontal section to form a second arc connecting portion. The second arc connecting portion is matched with the upper mold arc section and is arranged relative to each other.

[0018] Preferably, the inner arc radius of the arc surface is R1, the inner arc radius of the first arc connection portion is R2, the outer arc radius of the second arc connection portion is R3, and the outer arc radius of the upper mold arc segment is R4, wherein R1>R2>R3>R4.

[0019] Preferably, hand-grip grooves are respectively provided on both sides of the lower die base and the upper die base.

[0020] A cold press is used for extruding the arc-shaped plate extrusion die as described above, wherein the lower die seat is placed on the cold press base, and the cold press plate acts downward on the top of the upper die seat.

[0021] Preferably, a backing plate is detachably provided on the top of the upper die seat.

[0022] Compared with the prior art, one of the above technical solutions has the following beneficial effects:

[0023] The bending process of the panel can be realized through the cooperation of the wooden upper die base and the lower die base, without the need for complicated hardware mold opening process, thereby greatly shortening the production cycle and reducing manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the use state of an embodiment of the utility model;

[0025] Figure 2 It is an exploded schematic diagram of an embodiment of the utility model;

[0026] Figure 3 It is a front view of a lower die base and an upper die base of an embodiment of the utility model;

[0027] Figure 4 It is a front view of a lower thin steel plate and an upper thin steel plate of an embodiment of the utility model;

[0028] Figure 5 It is a schematic diagram of another embodiment of the utility model in use;

[0029] Figure 6 It is a schematic diagram of the production status of another embodiment of the utility model.

[0030] Among them: splint 0, lower die base 1, horizontal part 11, vertical part 12, arc surface 13, upper die base 2, horizontal section 21, upper die arc section 22, plate 3, steel bar 4, lower thin steel plate 5, first horizontal section 51, first vertical section 52, first arc connecting part 53, upper thin steel plate 6, second horizontal section 61, second vertical section 62, second arc connecting part 63, pad 7, cold press 8, cold press base 81 and cold press platen 82. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0033] In addition, the terms "first", "second" and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, features defined as "first", "second" and "third" may explicitly or implicitly include one or more of the features.

[0034] 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; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0035] The following is combined with Figures 1 to 6 The technical solution of the utility model is further illustrated by specific implementation methods.

[0036] The utility model provides an arc plate extrusion die, which is mainly used for bending a plate part 3 to prepare an arc plate part; the arc plate extrusion die of the utility model is a wooden die, and compared with a metal hot pressing die, the manufacturing cost of the die is lower.

[0037] like Figure 1 and Figure 2As shown, the arc plate extrusion die provided by the utility model is used for bending a plate 3 in the process of gluing and assembling several layers of thin plates, and comprises a lower die base 1 and an upper die base 2, wherein the lower die base 1 and the upper die base 2 are wooden molds; the top of the lower die base 1 is provided with a U-shaped groove, the bottom of the upper die base 2 cooperates with the groove, and the upper die base 2 is arranged on the top of the lower die base 1; the lower die base 1 is divided into two vertical parts 12 and a horizontal part 11, the two vertical parts 12 are respectively located at the two ends of the horizontal part 11, and the vertical part 1 2 is extended upward, the vertical part 12 is provided with an arc surface 13, and the arc surface 13 smoothly transitions with the top surface of the horizontal part 11; the bottom of the upper die seat 2 is divided into a horizontal section 21 and two upper die arc sections 22, and the two upper die arc sections 22 are respectively located at the two ends of the horizontal section 21; the horizontal section 21 cooperates with the horizontal part 11, and the upper die arc sections 22 on both sides cooperate with the arc surface 13, so that a pressing space for placing the plate 3 to be processed is reserved between the upper die seat 2 and the lower die seat 1. The arc plate produced by the arc plate extrusion die is horizontal in the middle and arc-shaped at both ends, which can be widely used in the cabinet corner connection part of the cabinet body.

[0038] When using an arc-shaped plate extrusion die to produce arc-shaped plates, several layers of thin wood boards are stacked together as needed, and glue is fully applied between adjacent thin wood boards to initially form a spliced ​​wood board assembly. The wood board assembly is then placed in the groove of the lower die base 1, and then the operator places the upper die base 2 on the top surface of the wood board assembly so that the bottom of the upper die base 2 fits the wood board assembly, that is, the wood board assembly is confined within the pressing space; then, relative forces are applied to the upper die base 2 and the lower die base 1 respectively, and the wood board assembly is extruded together, and the extrusion state is maintained for a certain period of time, so that an arc-shaped plate 3 can be obtained.

[0039] Since the arc plate extrusion die is simple in design and compact in structure, the bending process of the plate 3 can be achieved through the cooperation of the wooden upper die base 2 and the lower die base 1, without the need for a complicated hardware mold opening process, thereby greatly shortening the production cycle and reducing manufacturing costs.

[0040] Furthermore, the lower die base 1 is composed of a plurality of clamping plates 0 connected together, and the plurality of clamping plates 0 are sequentially connected front to back along the plate thickness direction, and a glue layer is provided between two adjacent clamping plates 0;

[0041] The upper die base 2 is composed of a plurality of clamping plates 0 connected together, and the plurality of clamping plates 0 are sequentially connected front to back along the plate thickness direction, and a glue layer is provided between two adjacent clamping plates 0 .

[0042] Since the upper mold base 2 and the lower mold base 1 are both composed of clamping plates, and the adjacent clamping plates are connected by a glue layer, not only the overall structural strength of the mold is enhanced, but also the mold is not easy to deform or loosen during long-term use. This structure helps to improve the durability and stability of the mold and extend the service life of the mold. In addition, the manufacturing process of the mold is relatively simple, without the need for complex casting or machining processes, which reduces the manufacturing cost, maintenance cost and maintenance difficulty.

[0043] Furthermore, the lower die base 1 is provided with a plurality of steel bars 4, and the steel bars 4 penetrate the lower die base 1 along the arrangement direction of the plurality of clamping plates 0;

[0044] The upper die base 2 is provided with a plurality of steel bars 4 , and the steel bars 4 penetrate the upper die base 2 along the arrangement direction of the plurality of clamping plates 0 .

[0045] The addition of the steel bars 4 significantly enhances the structural strength and rigidity of the upper die base 2 and the lower die base 1. Since the steel bars 4 of the lower die base 1 and the upper die base 2 respectively penetrate all the plywood layers, they can effectively resist bending and deformation, ensuring that the lower die base 1 and the upper die base 2 can still maintain a stable shape and precision under high pressure or high frequency use. This is crucial for the production of high-quality and high-precision curved panels. In addition, the presence of the steel bars 4 not only enhances the strength of the mold, but also helps to disperse and resist the stress and impact generated during the processing.

[0046] Furthermore, several steel bars 4 of the lower die base 1 / upper die base 2 respectively penetrate the die base body, and the two ends of the protruding steel bars 4 can be used as auxiliary structures for installation and positioning. During the installation and disassembly of the mold, these steel bars can be used for fast and accurate positioning and alignment to reduce installation errors and debugging time. They can also be used as the working part of the transfer device when transferring the lower die base 1 / upper die base 2, which facilitates the clamping and transfer of the lower die base 1 / upper die base 2.

[0047] Furthermore, the plurality of steel bars 4 of the lower die base 1 are arranged parallel to each other, and the plurality of steel bars 4 are arranged in an array on the same horizontal plane, and each of the vertical portions 12 is penetrated by at least one steel bar 4;

[0048] The plurality of steel bars 4 of the upper die base 2 are arranged parallel to each other, and the plurality of steel bars 4 are arranged in an array on the same horizontal plane.

[0049] The parallel array layout of the plurality of steel bars 4 enables the lower die base 1 / upper die base 2 to disperse the pressure more evenly when subjected to force, thereby avoiding the problem of local stress concentration and deformation. This uniform force characteristic helps to improve the stability and processing accuracy of the mold.

[0050] To further illustrate, since the vertical portion 12 of the lower die base 1 extends upwardly and is arranged at both ends of the horizontal portion 11, the vertical portion 12 may be subjected to greater pressure and stress than other parts of the lower die base 1. By arranging steel bars 4 at positions corresponding to the vertical portions 12, the strength and stability of these key supporting areas can be significantly enhanced, thereby preventing the mold from being deformed or damaged under high pressure.

[0051] Furthermore, a lower thin steel plate 5 is detachably provided on the top of the lower die base 1, and the lower thin steel plate 5 includes a first horizontal section 51 and two first vertical sections 52, the two first vertical sections 52 are respectively provided at two ends of the first horizontal section 51, the first vertical section 52 extends upward, and the connection between the first vertical section 52 and the first horizontal section 51 is an arc transition to form a first arc connection portion 53, and the first arc connection portion 53 is matched with the arc surface 13 and arranged relatively;

[0052] An upper thin steel plate 6 is detachably provided at the bottom of the upper mold base 2, and the upper thin steel plate 6 includes a second horizontal section 61 and two second vertical sections 62. The two second vertical sections 62 are respectively provided at both ends of the second horizontal section 61. The second vertical section 62 extends upward, and the arc transition at the connection between the second vertical section 62 and the second horizontal section 61 forms a second arc connecting portion 63. The second arc connecting portion 63 is matched with the upper mold arc section 22 and is arranged relatively.

[0053] As a consumable part of the mold, the thin steel plate can be replaced alone without replacing the entire lower mold base 1 or upper mold base 2, which greatly reduces the maintenance cost and time of the mold. At the same time, since the thin steel plate can withstand most of the wear and corrosion, the service life of the mold body (lower mold base 1 and upper mold base 2) is extended.

[0054] Furthermore, the thin steel plate has a smooth surface, which helps to reduce the friction and scratches between the plate 3 and the lower die base 1 or the upper die base 2 during processing, thereby improving the surface quality of the processed arc-shaped plate 3. In addition, the arc transition portion of the thin steel plate matches the arc connection portion of the mold body, ensuring that the plate can be bent smoothly during processing and avoiding processing defects caused by uneven mold surfaces. Since the thin steel plate is detachable, thin steel plates of different materials, thicknesses or surface treatments can be replaced according to different processing requirements. This flexibility enables the mold to adapt to more diverse processing requirements and improves the versatility and production efficiency of the mold.

[0055] Furthermore, the inner arc radius of the arc surface 13 is R1, the inner arc radius of the first arc connection portion 53 is R2, the outer arc radius of the second arc connection portion 63 is R3, and the outer arc radius of the upper mold arc segment 22 is R4, wherein R1>R2>R3>R4.

[0056] Since during the processing of the arc plate, the lower die base 1 is located at the bottom, the lower thin steel plate 5 is placed on the top surface of the lower die base 1, the plate 3 is placed on the top surface of the lower thin steel plate 5, the upper die base 2 and the upper thin steel plate 6 are pressed on the top surface of the plate 3, and the upper thin steel plate 6 is located at the bottom of the upper die base 2, the decreasing arc radius design of the arc part of each component helps the plate 3 to bend gradually and smoothly during the extrusion molding process. Starting from the larger inner arc radius R1 of the lower die base 1, the plate 3 begins to contact and bend initially and then transitions to the smaller arc radius R4 until it reaches the desired final shape. This design reduces the stress concentration and deformation of the plate during the bending process and improves the processing quality.

[0057] Preferably, the inner arc radius R1 of the arc surface 13 is 68 mm, the inner arc radius R2 of the first arc connection portion 53 is 65 mm, the outer arc radius R3 of the second arc connection portion 63 is 47 mm, and the outer arc radius R4 of the upper mold arc segment 22 is 44 mm.

[0058] Furthermore, hand-gripping grooves are respectively provided on both sides of the lower die base 1 and the upper die base 2 .

[0059] Hand-grip grooves are respectively provided on both sides of the lower die base 1 and the upper die base 2, so that the lower die base 1 / upper die base 2 can be conveniently moved and transported manually through the hand-grip grooves.

[0060] The utility model also provides a cold press, which is used to extrude the arc plate extrusion die. The lower die seat 1 is placed on the cold press base 81, and the cold press plate 82 acts downward on the top of the upper die seat 2.

[0061] The cold press 8 can ensure that the pressure applied by the pressing plate when acting downward on the top surface of the upper die seat 2 is uniform and stable through its precise mechanical structure and control system. This precise control helps to reduce errors in the processing process and improve the shape accuracy and dimensional consistency of the arc-shaped plate 3. Since the cold press 8 can provide stable pressure, the arc-shaped plate 3 can be uniformly stressed during the extrusion process, thereby reducing deformation caused by uneven stress.

[0062] Furthermore, a backing plate 7 is detachably provided on the top of the upper die base 2 .

[0063] The pad 7 acts as a buffer layer between the upper die seat 2 and the cold press platen 82, which can effectively reduce the impact and wear caused by the platen directly acting on the upper die seat. This helps to extend the service life of the upper die seat 2, maintain its accuracy and finish, and reduce the cost of mold maintenance and replacement.

[0064] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the present invention.

Claims

1. An arc plate extrusion die, used for bending a plate during the process of gluing several layers of thin plates, characterized in that: It comprises a lower mold base and an upper mold base, wherein the lower mold base and the upper mold base are wooden molds; The top of the lower die base is provided with a U-shaped groove, the bottom of the upper die base cooperates with the groove, and the upper die base is arranged on the top of the lower die base; The lower die base is divided into two vertical parts and a horizontal part, the two vertical parts are respectively located at two ends of the horizontal part, the vertical part is extended upward, and the vertical part is provided with an arc surface, and the arc surface smoothly transitions with the top surface of the horizontal part; The bottom of the upper die seat is divided into a horizontal section and two upper die arc sections, and the two upper die arc sections are respectively located at two ends of the horizontal section; The horizontal section cooperates with the horizontal portion, and the upper die arc sections on both sides cooperate with the arc surface, so that a pressing space for placing the plate to be processed is reserved between the upper die seat and the lower die seat.

2. The arc plate extrusion die according to claim 1, characterized in that: The lower die base is composed of a plurality of clamping plates connected together, wherein the plurality of clamping plates are sequentially connected front to back along the plate thickness direction, and a glue layer is provided between two adjacent clamping plates; The upper die base is composed of a plurality of clamping plates connected together, and the plurality of clamping plates are sequentially connected front to back along the plate thickness direction, and a glue layer is provided between two adjacent clamping plates.

3. The arc plate extrusion die according to claim 2, characterized in that: The lower die base is provided with a plurality of steel bars, and the steel bars penetrate the lower die base along the arrangement direction of the plurality of clamping plates; The upper die seat is provided with a plurality of the steel bars, and the steel bars penetrate the upper die seat along the arrangement direction of the plurality of the clamping plates.

4. The arc plate extrusion die according to claim 3, characterized in that: The plurality of steel bars of the lower die base are arranged parallel to each other, the plurality of steel bars are arranged in an array on the same horizontal plane, and at least one steel bar is passed through each of the vertical portions; The plurality of steel bars of the upper die seat are arranged parallel to each other, and the plurality of steel bars are arranged in an array on the same horizontal plane.

5. The arc plate extrusion die according to claim 4, characterized in that: A lower thin steel plate is detachably provided on the top of the lower die base, and the lower thin steel plate includes a first horizontal section and two first vertical sections, the two first vertical sections are respectively provided at two ends of the first horizontal section, the first vertical section extends upward, and a connection between the first vertical section and the first horizontal section is formed by an arc transition to form a first arc connection portion, and the first arc connection portion is matched and arranged opposite to the arc surface; An upper thin steel plate is detachably provided at the bottom of the upper mold base, and the upper thin steel plate includes a second horizontal section and two second vertical sections. The two second vertical sections are respectively provided at both ends of the second horizontal section. The second vertical section extends upward, and an arc transition is formed at the connection between the second vertical section and the second horizontal section to form a second arc connecting portion. The second arc connecting portion is matched with the upper mold arc section and is arranged relative to each other.

6. The arc plate extrusion die according to claim 5, characterized in that: The inner arc radius of the arc surface is R1, the inner arc radius of the first arc connection portion is R2, the outer arc radius of the second arc connection portion is R3, and the outer arc radius of the upper mold arc segment is R4, wherein R1>R2>R3>R4.

7. The arc plate extrusion die according to claim 6, characterized in that: Hand-grip grooves are respectively provided on both sides of the lower die base and the upper die base.

8. A cold press machine, used for extruding the arc plate extrusion die as described in any one of claims 1 to 7, wherein the lower die seat is placed on the cold press machine base, and the cold press machine platen acts downward on the top of the upper die seat.

9. A cold press according to claim 8, characterized in that: A backing plate is detachably provided on the top of the upper die seat.

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