Arc bending mechanism for small demolding space

Abstract

The utility model belongs to the technical field of bending equipment, and particularly relates to an arc bending mechanism for a small demolding space, which comprises an upper die holder, a lower die holder, a bending component and a reset component, the reset component is mounted in the upper die holder, the upper die holder is mounted on the upper surface of the reset component, the bending component is mounted in the lower die holder, and the lower die holder is mounted on the upper surface of the reset component. The bending assembly comprises a bending block and a bending leaning block, the bending block is installed in the upper die base, the bending leaning block is installed on the upper surface of the lower die base, when a workpiece on a product needs to be bent, firstly, the driving block drives the rotary forming block to rotate around the second equal-height sleeve, so that the product on a material belt is bent, and the bending effect is achieved; and meanwhile, in order to enhance the upward bending effect and durability of part of positions of the bent product, the durability of the product can be improved through a forming limiting block, a wear-resisting plate and a bending leaning block, and meanwhile, the production efficiency is also improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bending equipment, and in particular relates to an arc bending mechanism with a small demoulding space. Background Art

[0002] Bending machines are divided into manual bending machines, hydraulic bending machines and CNC bending machines. Manual bending machines are further divided into mechanical manual bending machines and electric manual bending machines. Hydraulic bending machines can be divided into torsion axis synchronization, machine-hydraulic synchronization, and electro-hydraulic synchronization according to the synchronization mode. Hydraulic bending machines can be divided into upper-moving type and lower-moving type according to the movement mode.

[0003] An existing Chinese patent with reference publication number CN106363055B discloses a bending mold, including: an upper mold, including an upper mold base, a fixed plate, two groups of transverse main slides, two groups of longitudinal side slides, and a driving block; a lower mold, including a lower mold base and a rectangular bending frame fixed on the lower mold base, the rectangular bending frame is used to place the workpiece to be bent and the inner cavity of the rectangular bending frame is adapted to the rectangular body. By arranging a rectangular body of retractable size on the upper die to cooperate with the rectangular frame of the lower die, the bending die of the four-sided bending workpiece and the removal of the formed workpiece after demolding can be easily realized, which greatly improves the processing efficiency and can also ensure the bending accuracy. Although the above-mentioned utility model patent arranges a rectangular body of retractable size on the upper die to cooperate with the rectangular frame of the lower die, which can easily realize the bending die of the four-sided bending workpiece and the removal of the formed workpiece after demolding, which greatly improves the processing efficiency and can also ensure the bending accuracy, it cannot solve the problem of arc bending with small demolding space. In order to solve this problem, the inventor proposes an arc bending mechanism for small demolding space. Utility Model Content

[0004] The utility model aims to provide an arc bending mechanism for a small demoulding space, aiming to solve the technical problems of bending equipment in the prior art.

[0005] To achieve the above-mentioned purpose, the embodiment of the utility model provides an arc bending mechanism for a small demoulding space, comprising an upper die base, a lower die base, a bending assembly and a reset assembly, wherein the reset assembly is installed inside the upper die base, the upper die base is installed on the upper surface of the reset assembly, and the bending assembly is installed inside the lower die base;

[0006] Optionally, a demoulding assembly is provided at the bottom of the bending block, and the demoulding assembly includes a stripping plate and a stripping plate insert, the stripping plate is installed at the bottom of the bending block, and the stripping plate insert is installed at the bottom of the stripping plate and is connected.

[0007] Optionally, the reset assembly includes an upper mold nitrogen spring and a reset nitrogen spring block, the upper mold nitrogen spring is installed at the bottom of the upper mold base, the reset nitrogen spring block is installed at the bottom of the stripper plate inlay, a material belt is provided at one end of the stripper plate inlay, the material belt is located between the stripper plate inlay and the reset nitrogen spring block, and the reset nitrogen spring block is connected to the stripper plate inlay.

[0008] Optionally, the reset assembly includes a reset nitrogen spring, a reset pin guide block and a reset pin, the reset nitrogen spring is installed on the upper surface of the reset nitrogen spring block, the reset pin is installed at one end of the reset nitrogen spring, and the reset pin guide block is installed at the bottom of the reset pin.

[0009] Optionally, a first contour sleeve is provided at one end of the upper mold nitrogen spring, and the first contour sleeve is installed at one end of the upper mold nitrogen spring. An upper clamp is provided at one end of the bending block, and an upper pad is provided on the upper surface of the upper clamp, and the upper pad is connected to the upper clamp. The bending block is located on one side of the upper clamp.

[0010] Optionally, a driving block is provided on the upper surface of the stripping plate, and the driving block is in a semi-arc shape.

[0011] Optionally, a forming pad is provided on the upper surface of the lower die base, and the forming pad is installed inside the lower die base. A forming limit block is provided on one side of the forming pad, and the forming limit block is installed on one side of the forming pad.

[0012] Optionally, a rotating forming block is provided on the upper surface of the forming pad, and the rotating forming block is installed on the surface of the forming pad. A second contour sleeve is provided inside the rotating forming block, and the second contour sleeve is provided inside the rotating forming block. A wear-resistant plate is provided at one end of the forming limit block, and the wear-resistant plate is located at one end of the forming limit block and the bending support block, and is connected.

[0013] The above one or more technical solutions in the arc bending mechanism with small demolding space provided by the embodiment of the utility model have at least one of the following technical effects: when it is necessary to bend the workpiece on the product, the driving block is first used to drive the rotating forming block to rotate around the second equal height sleeve, so that the product on the material strip can be bent. At the same time, in order to enhance the bending effect and durability of some parts of the product after bending, the durability of the product can be improved by using the forming limit block, the wear-resistant plate and the bending support block, and the production efficiency is also improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 An exploded schematic diagram of an arc bending mechanism for a small demoulding space provided by the utility model.

[0016] Figure 2 A schematic diagram of the internal structure of an arc bending mechanism for a small demoulding space provided by the utility model.

[0017] Figure 3 The utility model is a schematic structural diagram of an arc bending mechanism for a small demoulding space provided by the utility model.

[0018] Among them, the reference numerals in the figure are:

[0019] 1-upper die base, 2-first contour sleeve, 4-upper pad, 5-upper clamp, 6-drive block, 7-material belt, 8-rotational forming block, 9-second contour sleeve, 10-forming pad, 11-forming limit block, 12-wear-resistant plate, 13-lower die base, 10-reset assembly, 101-reset nitrogen spring block, 102-reset nitrogen spring, 103-reset pin guide block, 104-reset pin, 105-upper die nitrogen spring, 20-demolding assembly, 201-stripping plate, 202-stripping plate insert, 30-bending assembly, 301-bending block, 302-bending support block. DETAILED DESCRIPTION

[0020] 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 intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0021] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of 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 a limitation on the present invention.

[0022] In addition, the terms "first" and "second" 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. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0023] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0024] In one embodiment of the present invention, Figures 1 to 3 As shown, a circular arc bending mechanism for a small demolding space is provided, comprising an upper die base 1, a lower die base 13, a bending assembly 30 and a reset assembly 10, wherein the reset assembly 10 is installed inside the upper die base 1, the upper die base 1 is installed on the upper surface of the reset assembly 10, and the bending assembly 30 is installed inside the lower die base 13.

[0025] The bending assembly 30 includes a bending block 301 and a bending support block 302 . The bending block 301 is installed inside the upper die base 1 , and the bending support block 302 is installed on the upper surface of the lower die base 13 .

[0026] Specifically, through the setting of the bending block 301, when the material strip 7 needs to be bent, the bending block 301 will cooperate with the upper clamping plate 5 and the upper pad 4 to achieve the bending effect on the material strip 7. In order to prevent the bending block 301 from being deformed and broken when bending the material strip 7, the bending support block 302, the forming limit block and the wear-resistant plate 12 can cooperate to avoid the bending block 301 from being deformed and broken when bending the material strip 7, thereby improving practicality.

[0027] A demoulding assembly 20 is provided at the bottom of the bending block 301. The demoulding assembly 20 includes a stripping plate 201 and a stripping plate insert 202. The stripping plate 201 is installed at the bottom of the bending block 301, and the stripping plate insert 202 is installed at the bottom of the stripping plate 201 and connected.

[0028] Specifically, when the material strip 7 needs to be bent, the driving block 6 will drive the stripping plate 201 to move upward, and the stripping plate 201 will also drive the stripping plate insert 202 to separate from the material strip 7, thereby achieving a demoulding effect.

[0029] The reset assembly 10 includes an upper mold nitrogen spring 105 and a reset nitrogen spring block 101. The upper mold nitrogen spring 105 is installed at the bottom of the upper mold base 1. The reset nitrogen spring block 101 is installed at the bottom of the stripper plate insert 202. A material belt 7 is provided at one end of the stripper plate insert 202. The material belt 7 is located between the stripper plate insert 202 and the reset nitrogen spring block 101. The reset nitrogen spring block 101 is connected to the stripper plate insert 202. The reset assembly 10 includes a reset nitrogen spring 102, a reset pin guide block 103 and a reset pin 104. The reset nitrogen spring 102 is installed on the upper surface of the reset nitrogen spring block 101. The reset pin 104 is installed at one end of the reset nitrogen spring 102. The reset pin guide block 103 is installed at the bottom of the reset pin 104.

[0030] Specifically, after the bending block 301 completes the bending action on the material strip 7 on the upper clamping plate 5 and the upper pad 4, the upper die seat 1 will drive the bending block 301 to reset on the upper clamping plate 5 and the upper pad 4. In order to avoid damage to the bending block 301 on the upper clamping plate 5 and the upper pad 4 during the resetting process, the upper die nitrogen spring 105 can be used to further protect the bending block 301 on the upper clamping plate 5 and the upper pad 4, thereby improving the service life of the upper die seat 1. By setting the reset nitrogen spring block 101, when the rotary forming block 8 rotates 25 degrees in the opposite direction around the second contour sleeve 9 as the center, the product will detach from the rotary forming block 8, and the reset nitrogen spring block 101 and the reset pin 104 will reset the rotary forming block 8, thereby improving practicality. By setting the reset pin guide block 103, the reset pin guide block 103 will assist the reset pin 104, so that the reset pin 104 plays a stabilizing role when resetting the rotary forming block 8, thereby improving the stability of the reset pin 104.

[0031] A first contour sleeve 2 is provided at one end of the upper mold nitrogen spring 105, and the first contour sleeve 2 is installed at one end of the upper mold nitrogen spring 105. An upper clamping plate 5 is provided at one end of the bending block 301, and an upper pad 4 is provided on the upper surface of the upper clamping plate 5. The upper pad 4 is connected to the upper clamping plate 5, and the bending block 301 is located on one side of the upper clamping plate 5.

[0032] Specifically, when the upper mold base 1 is to be closed, the upper mold base 1 will move the upper pad 4, the upper pad 4 will drive the upper clamping plate 5, and the upper clamping plate 5 will drive the bending block 301 to bend the material strip 7, so that the bending effect is completed on the material strip 7. Through the setting of the first contour sleeve 2, the rotating forming block 8 rotates 25 degrees with the first contour sleeve 2 as the center. When it reaches the bending point of the material strip 7, the stripping plate insert 202 presses the material strip 7, which is convenient for the bending block 301 to bend the material strip 7.

[0033] A driving block 6 is disposed on the upper surface of the stripping plate 201 , and the driving block 6 is in a semi-arc shape.

[0034] Specifically, the design of the driving block 6 facilitates the movement of the demoulding assembly 20 and the bending assembly 30, thereby improving practicality.

[0035] A forming pad 10 is provided on the upper surface of the lower die base 13 , and the forming pad 10 is installed inside the lower die base 13 . A forming limit block 11 is provided on one side of the forming pad 10 , and the forming limit block 11 is installed on one side of the forming pad 10 .

[0036] Specifically, through the setting of the forming pad 10, the rotating forming block can play a supporting role when rotating on the surface of the forming pad 10. At the same time, through the setting of the forming limit block 11, the forming pad 10 can be limited to avoid displacement of the forming pad 10 during movement, thereby improving the stability of the forming pad 10.

[0037] As a further explanation, a rotating forming block 8 is provided on the upper surface of the forming pad 10, and the rotating forming block 8 is installed on the surface of the forming pad 10. A second contour sleeve 9 is provided inside the rotating forming block 8, and the second contour sleeve 9 is provided inside the rotating forming block 8. A wear-resistant plate 12 is provided at one end of the forming limit block 11, and the wear-resistant plate 12 is located at one end of the forming limit block 11 and the bending support block 302, and is connected.

[0038] Working principle: first, the 90-degree material strip 7 to be bent is sent to the interior of the bending assembly 30. When the material strip 7 is to be bent, the upper die seat 1 will drive the bending assembly 30 to move downward, and the driving block 6 will also drive the demoulding assembly 20 to move onto the material strip 7. When the driving block 6 drives the demoulding assembly 20 to be driven onto the material strip 7, the stripping plate insert 202 presses the material strip 7, and then the rotating forming block 8 rotates 25 degrees around the first equal height sleeve 2, so that the bending block 301 can bend the material strip 7. At the same time, in order to prevent the bending block 301 from deforming and breaking when bending the material strip 7, the forming limit block 11, the wear-resistant plate 12 and the bending support block 302 are used to prevent the bending block 301 from bending. The deformation and breakage of the material strip 7 are improved, and the protection of the material strip 7 after bending is improved. After the bending is completed, the driving block 6 will drive the bending block 301 and the stripping plate insert 202 to open the mold with the lower mold base 13 in succession. After the mold is opened, the product after bending is still stuck on the rotating forming block 8. Under the action of the reset nitrogen spring 102 and the reset pin 104, the rotating forming block 8 rotates 25 degrees in the opposite direction with the second contour sleeve 9 as the center, and the product will be separated from the rotating forming block 8. After the action is completed, the material strip 7 will continue to move forward to bend the material strip 7, so that the process enters a cycle, which improves work efficiency and solves the problem that the arc bending demolding space is small and the bending cannot be solved.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An arc bending mechanism for small demoulding space, characterized in that: It includes an upper die base, a lower die base, a bending assembly and a reset assembly, wherein the reset assembly is installed inside the upper die base, the upper die base is installed on the upper surface of the reset assembly, and the bending assembly is installed inside the lower die base; The bending assembly comprises a bending block and a bending support block, wherein the bending block is installed inside the upper die base, and the bending support block is installed on the upper surface of the lower die base.

2. The arc bending mechanism for small demoulding space according to claim 1, characterized in that: A demoulding assembly is arranged at the bottom of the bending block, and the demoulding assembly comprises a stripping plate and a stripping plate insert. The stripping plate is installed at the bottom of the bending block, and the stripping plate insert is installed at the bottom of the stripping plate and is connected.

3. The arc bending mechanism for small demoulding space according to claim 2, characterized in that: The reset assembly includes an upper mold nitrogen spring and a reset nitrogen spring block. The upper mold nitrogen spring is installed at the bottom of the upper mold base, and the reset nitrogen spring block is installed at the bottom of the stripper plate inlay. A material belt is provided at one end of the stripper plate inlay, and the material belt is located between the stripper plate inlay and the reset nitrogen spring block. The reset nitrogen spring block is connected to the stripper plate inlay.

4. The arc bending mechanism for small demoulding space according to claim 3, characterized in that: The reset assembly includes a reset nitrogen spring, a reset pin guide block and a reset pin. The reset nitrogen spring is installed on the upper surface of the reset nitrogen spring block, the reset pin is installed at one end of the reset nitrogen spring, and the reset pin guide block is installed at the bottom of the reset pin.

5. The arc bending mechanism for small demoulding space according to claim 4, characterized in that: A first contour sleeve is provided at one end of the upper mold nitrogen spring, and the first contour sleeve is installed at one end of the upper mold nitrogen spring. An upper clamp is provided at one end of the bending block, and an upper pad is provided on the upper surface of the upper clamp, and the upper pad is connected to the upper clamp. The bending block is located on one side of the upper clamp.

6. The arc bending mechanism for small demoulding space according to claim 5, characterized in that: A driving block is arranged on the upper surface of the stripping plate, and the driving block is in a semi-arc shape.

7. The arc bending mechanism for small demoulding space according to claim 1, characterized in that: A forming pad is provided on the upper surface of the lower die base, and the forming pad is installed inside the lower die base. A forming limit block is provided on one side of the forming pad, and the forming limit block is installed on one side of the forming pad.

8. The arc bending mechanism for small demoulding space according to claim 7, characterized in that: A rotating forming block is arranged on the upper surface of the forming pad, and the rotating forming block is installed on the surface of the forming pad. A second contour sleeve is arranged inside the rotating forming block, and the second contour sleeve is arranged inside the rotating forming block. A wear-resistant plate is arranged at one end of the forming limit block, and the wear-resistant plate is located at one end of the forming limit block and the bending support block, and is connected.

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