A plate bending machine

Abstract

The utility model discloses a plate bending machine, including a base and a V-shaped groove opened thereon, a pressure block movable relative to the V-shaped groove is slidably arranged on the base, a support piece is symmetrically arranged on the V-shaped groove, and the support piece is arched in an arc shape toward the inner side of the V-shaped groove in a default state, and the pressure block is driven to be equivalent to the V-shaped groove approaching to push the support piece to deform and be flush with the inner wall of the V-shaped groove. The plate bending machine provided by the utility model uses the pressure block and the support piece to pre-bend the metal plate at a smaller angle and then increase the bending angle of the metal plate to a predetermined value, thereby avoiding the problem that the metal plate itself is deformed and reset, resulting in the angle of the formed V-shaped plate being greater than the required forming angle. Secondly, the support piece is deformed and reset and arched to push the metal plate that has been bent in the V-shaped groove out for rapid demolding, thereby avoiding the problem that the bent metal plate is stuck in the V-shaped groove and is difficult to get out, thereby improving the bending processing efficiency of the metal plate.

Description

Technical Field

[0001] The utility model relates to the technical field of bending machines, in particular to a plate bending machine. Background Art

[0002] In sheet metal processing, bending machines are often used to bend metal sheets.

[0003] According to announcement number CN210098600U, announcement date: 2020.02.21, a plate bending machine is disclosed, including an upper die structure and a lower die structure that are relatively matched and arranged at the upper and lower parts; the upper die structure includes a bending pressure block; the lower die structure includes a lower die seat, and the middle part of the seat surface of the lower die seat is provided with a V-shaped groove with an opening facing upward, and the bending pressure block is arranged in cooperation with the V-shaped groove; the seat surface of the lower die seat is provided with a rectangular template through two rolling limit mechanisms, and the two end sides of the lower die seat are respectively detachably provided with abutment positioning mechanisms, and the two abutment positioning mechanisms are respectively arranged against the two side plate ends of the rectangular template, so that the vertical center line of the rectangular template and the vertical center line of the bending pressure block and the vertical center line of the V-shaped groove are arranged in a collinear manner; the upper die structure moves downward so that the bending pressure block cooperates with the V-shaped groove to bend the rectangular template to form a V-shaped template. The plate bending machine provided by the utility model is suitable for bending a specific rectangular template into a V-shaped template, with high bending accuracy and improved product qualification rate.

[0004] In the prior art including the above-mentioned patent, a V-shaped template is formed by moving the bending pressure block downward and cooperating with the V-shaped groove to bend the rectangular template. However, since the metal sheets have reset elasticity, after the bending pressure block bends the metal sheet into a predetermined shape that fits the V-shaped groove, the metal sheet will slightly deform and reset due to its own elasticity, resulting in the angle of the formed V-shaped sheet being greater than the required forming angle. Utility Model Content

[0005] The purpose of the utility model is to provide a plate bending machine for solving the above problems.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plate bending machine, including a base and a V-shaped groove opened thereon, a pressure block slidingly arranged on the base and movable relative to the V-shaped groove, and a support piece symmetrically arranged on the V-shaped groove, which is arched in an arc shape toward the inner side of the V-shaped groove in a default state, and the pressure block is driven to push the support piece to deform until it is flush with the inner wall of the V-shaped groove.

[0007] Preferably, a sliding plate is slidably arranged in the base, and a deformation portion is arranged on the sliding plate to abut against the middle of the supporting member. The sliding plate is driven to slide relative to the V-shaped groove to push the supporting member to be arched and located in a default state.

[0008] Preferably, a sliding groove parallel to the inner wall of the V-shaped groove is provided on the base, a receiving groove is provided in the sliding groove, both ends of the support member are slidably arranged in the sliding groove, the pressure block is driven to approach the V-shaped groove to push the support member to deform, and the sliding plate is driven to slide so that the deformation part deforms and contacts the receiving groove.

[0009] Preferably, the sliding plate piston is slidably disposed in a movable groove provided in the base, and a connecting hole connected to the movable groove is provided in a symmetrical linear array on the base, and the other end of the connecting hole is connected to the bottom of the V-shaped groove.

[0010] Preferably, an elastic member for driving the sliding plate to slide into the V-shaped groove is provided in the movable groove.

[0011] Preferably, a filter is provided in the communicating hole.

[0012] Preferably, the supporting member is a plastic elastic plate.

[0013] In the above technical scheme, a sheet metal bending machine provided by the utility model has the following beneficial effects: a pressure block and a support member are used to pre-bend the metal sheet at a smaller angle and then increase the bending angle of the metal sheet to a predetermined value, thereby avoiding the problem that the metal sheet itself deforms and resets, causing the angle of the formed V-shaped sheet to be greater than the required forming angle; secondly, because the support member arches into the V-shaped groove in the default state, when the pressure block slides away from the V-shaped groove, the support member deforms and resets to arch to push out the bent metal sheet in the V-shaped groove for rapid demolding, thereby avoiding the problem that the bent metal sheet is stuck in the V-shaped groove and is difficult to get out, thereby improving the bending processing efficiency of the metal sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0015] Figure 1 A schematic cross-sectional view of the overall structure provided for an embodiment of the utility model;

[0016] Figure 2 A schematic diagram of the overall structure provided for an embodiment of the utility model;

[0017] Figure 3 The embodiment of the utility model provides Figure 1 A local enlarged schematic diagram of point A in the middle.

[0018] Description of reference numerals:

[0019] 1. Base; 11. V-shaped groove; 12. Sliding groove; 121. Accommodating groove; 13. Connecting hole; 14. Movable groove; 2. Pressing block; 3. Supporting member; 4. Sliding plate; 41. Deformation part; 5. Elastic member; 6. Driving cylinder; 7. Filter. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0021] like Figure 1-3 As shown, a plate bending machine includes a base 1 and a V-shaped groove 11 opened thereon, a pressure block 2 is slidably arranged on the base 1 and movable relative to the V-shaped groove 11, and a support member 3 is symmetrically arranged on the V-shaped groove 11. The support member 3 is arched in an arc shape toward the inner side of the V-shaped groove 11 in a default state, and the pressure block 2 is driven to approach the V-shaped groove 11 to push the support member 3 to deform until it is flush with the inner wall of the V-shaped groove 11.

[0022] Specifically, Figure 2 As shown, abutment members 3 are provided on both inclined inner side walls of the V-shaped groove 11. Figure 3 As shown, the support member 3 is arched toward the inner side of the V-shaped groove 11 in the default state. When the pressure block 2 slides closer to the V-shaped groove 11, the pressure block 2 bends and presses the metal sheet into the V-shaped groove 11, and the middle part of the metal sheet follows the pressure block 2 to bend downward, while the two ends of the metal sheet are supported by the arched support member 3, so that the metal sheet pressure block 2 and the support member 3 are first bent at a bending angle less than a predetermined bending angle, and then the pressure block 2 continues to approach the V-shaped groove 11, so that the pressure block 2 deforms the support member 3 and presses it down to be flush with the inner wall of the V-shaped groove 11, and the metal sheet is completely pressed against the inner wall of the V-shaped groove 11 by the pressure block 2, so that the bending angle of the bent metal sheet is increased to the predetermined bending angle. The pressing block 2 and the supporting member 3 are used to pre-bend the metal sheet at a smaller angle and then increase the bending angle of the metal sheet to a predetermined value, thereby avoiding the problem that the metal sheet itself deforms and resets, causing the angle of the formed V-shaped sheet to be greater than the required forming angle. Secondly, since the supporting member 3 is arched into the V-shaped groove 11 in the default state, when the pressing block 2 slides away from the V-shaped groove 11, the supporting member 3 deforms and resets to arch to push out the bent metal sheet in the V-shaped groove 11 for rapid demolding, avoiding the problem that the bent metal sheet is stuck in the V-shaped groove 11 and is difficult to get out, thereby improving the bending processing efficiency of the metal sheet. Among them, a driving cylinder 6 is arranged in the base 1 to drive the sliding of the pressing block 2 located on the base 1.

[0023] In the above technical solution, the pressing block 2 and the supporting member 3 are used to pre-bend the metal sheet at a smaller angle and then increase the bending angle of the metal sheet to a predetermined value, thereby avoiding the problem that the metal sheet itself deforms and resets, causing the angle of the formed V-shaped sheet to be greater than the required forming angle. Secondly, since the supporting member 3 arches into the V-shaped groove 11 in the default state, when the pressing block 2 slides away from the V-shaped groove 11, the supporting member 3 deforms and resets to arch to push out the bent metal sheet in the V-shaped groove 11 for rapid demolding, thereby avoiding the problem that the bent metal sheet is stuck in the V-shaped groove 11 and is difficult to get out, thereby improving the bending processing efficiency of the metal sheet.

[0024] As a further embodiment of the present invention, a sliding plate 4 is slidably arranged in the base 1, and a deformation portion 41 is arranged on the sliding plate 4 to abut against the middle of the supporting member 3. The sliding plate 4 is driven to slide relative to the V-shaped groove 11 to push the supporting member 3 to be arched and in a default state.

[0025] Specifically, Figure 3 As shown, the deformation portion 41 of the sliding plate 4 is abutted against the inner side of the middle portion of the abutment 3. When the sliding plate 4 is driven to slide into the V-shaped groove 11, the deformation portion 41 pushes the abutment 3 to be arched and in a default state. When the pressure block 2 bends and presses the metal sheet into the V-shaped groove 11, and the middle portion of the metal sheet bends downward following the pressure block 2, both ends of the metal sheet are abutted by the arched abutment 3, so that the metal sheet pressure block 2 and the abutment 3 are first bent at a bending angle less than a predetermined bending angle, and then the pressure block 2 continues to approach the V-shaped groove 11, so that the pressure block 2 deforms and presses the abutment 3 down to be flush with the inner wall of the V-shaped groove 11. At this time, the sliding plate 4 is pressed to slide back to the V-shaped groove 11, and the abutment 3 is deformed and the two ends slide away from each other until the surface of the abutment 3 is flush with the inner wall of the V-shaped groove 11. The sliding plate 4 is used to reset the abutment 3, thereby improving the stability of the abutment 3 against the metal sheet when it is pre-bent. The deformation portion 41 of the sliding plate 4 abuts against the middle of the abutment 3, so that the two ends of the abutment 3 slide away from each other to deform when the abutment 3 is pressed, thereby preventing the abutment 3 from sliding as a whole and causing the abutment 3 to block the bending of the metal sheet, thereby improving the stability of the bending process.

[0026] As an embodiment further provided by the present invention, a sliding groove 12 is provided on the base 1 and is arranged parallel to the inner wall of the V-shaped groove 11. A receiving groove 121 is provided in the sliding groove 12. Both ends of the support member 3 are slidably arranged in the sliding groove 12. The pressure block 2 is driven to approach the V-shaped groove 11 to push the support member 3 to deform, and the sliding plate 4 is driven to slide so that the deformation portion 41 deforms and contacts the receiving groove 121.

[0027] Specifically, Figure 3As shown, the two ends of the support member 3 are slidably arranged in the sliding groove 12, so that when the support member 3 is subjected to the pressure of the pressure block 2, the two ends are located in the sliding groove 12 and slide away from each other, and a receiving groove 121 is provided in the sliding groove 12. When the pressure block 2 is driven to approach the V-shaped groove 11 to bend the metal sheet, the support member 3 is pushed by the metal sheet and the pressure block 2 and deformed to be flush with the inner wall of the V-shaped groove 11, and the sliding plate 4 is driven to slide so that the deformation part 41 is deformed and abutted against the accommodation groove 121, so that the deformation part 41 is deformed and abutted against the accommodation groove 121 to form a limit, thereby further avoiding the problem of failure of bending of the metal sheet due to the overall sliding of the support member 3 under pressure.

[0028] As an embodiment further provided by the present invention, the sliding plate 4 piston is slidably arranged in the movable groove 14 opened in the base 1, and the base 1 has a symmetrical linear array of connecting holes 13 connected to the movable groove 14, and the other end of the connecting hole 13 is connected to the bottom of the V-shaped groove 11.

[0029] Specifically, Figure 3 As shown, the sliding plate 4 is piston-slidably arranged in the movable groove 14 opened in the base 1, one end of the connecting hole 13 is connected to the movable groove 14, and the other end is connected to the bottom of the V-shaped groove 11. When the pressure block 2 is pressurized to cause the support member 3 to deform and the sliding plate 4 is located in the movable groove 14 and the piston slides, the air in the movable groove 14 is pressurized and sprayed along the connecting hole 13 to the bottom of the V-shaped groove 11, thereby blowing out the metal debris generated during the bending process of the metal plate from the bottom of the V-shaped groove 11 to complete the cleaning, thereby avoiding the problem of metal debris being converted into metal plates during the bending process and causing damage to the surface of the metal plate.

[0030] Furthermore, the connecting hole 13 and one end connected to the bottom of the V-shaped groove 11 can be inclined toward the opening of one end of the V-shaped groove 11, thereby further improving the cleaning stability of the connecting hole 13 on the bottom of the V-shaped groove 11, making it easier for the connecting hole 13 to blow out metal debris from the bottom of the V-shaped groove 11 for cleaning.

[0031] As a further embodiment provided by the present invention, an elastic member 5 is provided in the movable groove 14 for driving the sliding plate 4 to slide into the V-shaped groove 11 .

[0032] Specifically, the elastic member 5 is arranged in the movable groove 14 to push the sliding plate 4 to slide into the V-shaped groove 11 so that the supporting member 3 maintains the default state, wherein the elastic member 5 can be replaced by a spring, an elastic plate or an airbag or other elastic objects known to those skilled in the art.

[0033] As a further embodiment provided by the present invention, a filter screen 7 is provided in the connecting hole 13 .

[0034] Specifically, a filter screen 7 is disposed in the communicating hole 13 so that metal scraps or debris are sucked into the movable groove 14 by the communicating hole 13 , thereby ensuring the cleaning stability of the V-shaped groove 11 by the communicating hole 13 .

[0035] As a further embodiment provided by the present invention, the supporting member 3 is a plastic elastic plate.

[0036] Specifically, the supporting member 3 is a plastic elastic plate to prevent the supporting member 3 from scratching the metal plate, thereby improving the protection of the metal plate.

[0037] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A plate bending machine, characterized in that: The invention comprises a base (1) and a V-shaped groove (11) provided thereon, wherein a pressing block (2) is slidably provided on the base (1) and is movable relative to the V-shaped groove (11), and a supporting member (3) is symmetrically provided on the V-shaped groove (11), wherein the supporting member (3) is arched in an arc shape toward the inner side of the V-shaped groove (11) in a default state, and the pressing block (2) is driven to approach the V-shaped groove (11) to push the supporting member (3) and deform until it is flush with the inner wall of the V-shaped groove (11).

2. A plate bending machine according to claim 1, characterized in that: A sliding plate (4) is slidably arranged in the base (1), and a deformation portion (41) is arranged on the sliding plate (4) to abut against the middle portion of the supporting member (3). The sliding plate (4) is driven to slide relative to the V-shaped groove (11) to push the supporting member (3) to be arched and located in a default state.

3. A plate bending machine according to claim 2, characterized in that: The base (1) is provided with a sliding groove (12) arranged parallel to the inner wall of the V-shaped groove (11), and a receiving groove (121) is provided in the sliding groove (12). The two ends of the abutting member (3) are slidably arranged in the sliding groove (12), the pressing block (2) is driven to approach the V-shaped groove (11) to push the abutting member (3) to deform, and the sliding plate (4) is driven to slide so that the deformation part (41) deforms and contacts with the receiving groove (121).

4. A plate bending machine according to claim 3, characterized in that: The sliding plate (4) piston is slidably disposed in a movable groove (14) provided in the base (1); a symmetrical linear array of connecting holes (13) connected to the movable groove (14) is provided on the base (1); the other end of the connecting hole (13) is connected to the bottom of the V-shaped groove (11).

5. A plate bending machine according to claim 4, characterized in that: An elastic member (5) is arranged in the movable groove (14) for driving the sliding plate (4) to slide into the V-shaped groove (11).

6. A plate bending machine according to claim 4, characterized in that: A filter screen (7) is arranged in the communicating hole (13).

7. A plate bending machine according to claim 1, characterized in that: The supporting member (3) is a plastic elastic plate.

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