Metal handle forming device and forming method

Abstract

The present invention discloses a forming device and forming method of a metal handle, comprising a mounting plate, a forming mold, a preforming module and a pressing module, wherein the forming mold comprises a first forming block, the first forming block is fixedly arranged on the front side of the mounting plate, a horizontal section is arranged on the top of the first forming block, and first arc-shaped portions are arranged on both sides thereof, the first arc-shaped portion is arranged downward from the end of the horizontal section, a metal strip is horizontally placed on the horizontal section, the metal strip is pressed down by the pressing module and cooperates with the first arc-shaped portion to form the strip metal strip as a whole into a handle, the preforming module is movably arranged between the first arc-shaped portion and the mounting plate, and the curvature of the first arc-shaped portion is changed by the preforming module. The present invention realizes that the present invention arranges a preforming module on the forming mold, and the arc-shaped portion of the handle is formed in sections, so that it is not easy to rebound after forming, and the forming effect is better, so that it is firm and not easy to fall off after being assembled with the barrel body.

Description

Technical Field

[0001] The invention relates to the technical field of automatic forming of a handle of a handle bucket, and in particular to a forming device and a forming method of a metal handle. Background Art

[0002] A handle bucket is a turnbuckle bucket, which is a metal packaging solvent barrel made of iron sheet, or a solvent barrel made of plastic. It is widely used as a container for liquids such as paint and engine oil. In order to facilitate moving, a handle is provided on the handle bucket, and the handle is cut and formed by steel wire. There are related equipment in the prior art for automatic forming of the handle to achieve this purpose, but its structure is not perfect enough, especially for a handle with an arc shape. Since the existing equipment adopts a method of extruding the steel wire along the mold at one time, this structural method makes the arc of the formed handle very easy to rebound, the aesthetics is poor, and the connection with the barrel body is poor. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a forming device and a forming method for a metal handle.

[0004] To achieve the above-mentioned purpose, the present invention discloses a forming device and a forming method for a metal handle, comprising a mounting plate, a forming mold, a preforming module and a pressing module, the forming mold comprising a first forming block, the first forming block is fixedly arranged on the front end surface of the mounting plate, a horizontal section is arranged on the top of the first forming block, and first arc-shaped portions are arranged on both sides thereof, the first arc-shaped portion is arranged downward from the end of the horizontal section, a pre-pressing position is arranged above the arc length direction of the first arc-shaped portion, the pre-forming module is movably arranged in the pre-pressing position or in the mounting plate, a metal strip is horizontally placed on the horizontal section, the pre-forming module is arranged in the pre-pressing position, the metal strip is pressed down by the pressing module and cooperates with the pre-forming module to pre-press an arc on the strip-shaped metal strip, and the pressing module cooperates with the arc surface of the first arc-shaped portion to form the pre-pressed arc into the arc of the arc segment.

[0005] Furthermore, an accommodating groove is arranged downwardly in the middle of the horizontal section.

[0006] Furthermore, a limiting module is arranged on the outer side of the accommodating groove, and the limiting module includes a limiting power source and a limiting block. The limiting power source is fixedly arranged on the front side of the first forming block, and the limiting power source drives the limiting block to be placed in or away from the accommodating groove.

[0007] Furthermore, the preforming module includes a movable block and a telescopic power source, the movable block is movably arranged in the mounting plate or in the pre-pressing position, and the telescopic power source is fixedly arranged on the rear side of the mounting plate, and drives the movable block to perform a telescopic action.

[0008] Furthermore, an avoidance recess is provided on the first arc-shaped portion, and an avoidance through hole is provided on the front side surface of the mounting plate opposite to the avoidance recess, the avoidance through hole is connected to the avoidance recess, and the pre-compression position is formed between the avoidance through hole and the avoidance recess.

[0009] Furthermore, the outer side edge of the movable block is arranged as a second arc-shaped portion along the arc length direction of the first arc-shaped portion, and the curvature of the second arc-shaped portion is greater than the curvature of the first arc-shaped portion.

[0010] Furthermore, a third arc-shaped portion is protrudingly provided on the front end surface of the movable block along the arc length direction of the first arc-shaped portion, and the curvature of the arc surface of the third arc-shaped portion corresponds to the curvature of the first arc-shaped portion.

[0011] Furthermore, the following steps are included:

[0012] S1. placing a metal strip on the horizontal section by automated equipment.

[0013] S2. The telescopic power source drives the movable block to move outward, so that the second arc-shaped portion extends out from the avoidance through hole and is set in the pre-stressed position.

[0014] S3. The pressing module presses the metal strip to the end of the first arc-shaped portion, so that a gripping portion and a pre-pressed arc are formed on the metal strip under the action of the arc surface of the horizontal section and the second arc-shaped portion.

[0015] S4. The telescopic power source drives the second arc-shaped portion to be disposed in the avoidance through hole, so that a continuous forming position is formed between the third arc-shaped portion and the first arc-shaped portion.

[0016] S5: The pressing module continues to press downward, and the pre-pressed arc continues to be squeezed downward in the forming position to deform into an arc segment.

[0017] Further, based on S3, the second arc-shaped portion protrudes from the mounting plate by 5-10 mm.

[0018] Furthermore, the arc length of the arc preformed by the second arc-shaped portion is greater than the arc length of the arc segment in the final form, and the difference in arc length is 15-20 mm.

[0019] Compared with the prior art, the beneficial effect of the present invention is that a preforming module is arranged on the forming mold to form the arc-shaped portion of the handle in segments, so that it is not easy to rebound after forming, the forming effect is better, and it is firm and not easy to fall off after being assembled with the barrel body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the forming process of the metal handle of the present invention;

[0022] Figure 3 It is a front schematic diagram of the molding die of the present invention;

[0023] Figure 4 It is a front view schematic diagram of the preformed module of the present invention;

[0024] Figure 5 It is a three-dimensional schematic diagram of the movable block of the present invention. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention clearer, the following will be combined with Figure 1-Figure 4 The present invention is further described in detail with reference to the accompanying drawings.

[0026] Reference Figure 1 As shown, a forming device and forming method of a metal handle is characterized by comprising a mounting plate 1, a forming die 2, a preforming module 3 and a pressing module. In this embodiment, the preforming modules 3 are arranged in pairs.

[0027] Recombination Figure 2 As shown, the handle 5 includes a gripping section 51 and an arc section 52 and a vertical section 53 located on both sides of the gripping section 51. In this embodiment, the gripping section 51 is horizontally arranged, and arc sections 52 are respectively arranged downward at both ends of the gripping section 51. The vertical section 53 is vertically arranged at the end of the arc section 52.

[0028] The forming mold 2 is arranged on the mounting plate 1 , the preforming module 3 is arranged in the forming mold 2 , and the pressing module is arranged above the mounting plate 1 .

[0029] The pressing module of this embodiment is a known technology, and the details can be referred to Chinese Patent Publication No.: CN109201938B.

[0030] Reference Figure 3 As shown, the molding die 2 includes a first molding block 21 and a second molding block 22. In this embodiment, the second molding blocks 22 are arranged in pairs. The first molding block 21 is fixedly arranged on the surface of the mounting plate 1, and a pair of second molding blocks 22 are symmetrically fixedly arranged on the surface of the mounting plate 1, and are located on both sides of the bottom of the first molding block 21.

[0031] A horizontal section 211 is provided at the top of the first forming block 21, and a receiving groove 212 is provided downwardly in the middle of the horizontal section 211. (For receiving the handle) Further, a limiting module is provided outside the receiving groove 212, and the limiting module includes a limiting power source and a limiting block 23, the limiting power source is fixedly provided on the front side of the first forming block 21, and the limiting block 23 is movably provided on the outside of the receiving groove 212, and is fixedly connected to the movable part of the limiting power source, and the limiting block 23 is driven by the limiting power source to be placed in or away from the receiving groove 212.

[0032] In this embodiment, the limiting power source is a cylinder.

[0033] Both sides of the first forming block 21 are provided with a first arc portion 213, which is provided downward from the end of the horizontal section 211, and the curvature of the first arc portion 213 is provided according to the curvature of the arc section 52 of the handle. A pair of preforming modules 3 are movably provided in the first arc portions 213 on both sides of the first forming block 21.

[0034] In this embodiment, the first arc portion 213 and the horizontal segment 211 have an arc-shaped transition adjacent thereto.

[0035] The second forming block 22 is embedded in the mounting plate 1, and the surface of the second forming block 22 is flush with the front side of the mounting plate 1. A vertical portion 221 is protruded from one side of the surface of the second forming block 22, and the vertical portion 221 is connected to the end of the first arc portion 213.

[0036] In this embodiment, the horizontal section 211, the pair of first arc-shaped portions 213 and the pair of vertical portions 221 are distributed according to the outer contour of the handle after molding.

[0037] Reference Figure 4 and Figure 5 As shown, the preforming module 3 includes a movable block 31 and a telescopic power source. In this embodiment, the outer contour of the movable block 31 is arc-shaped. The first arc-shaped portion 213 is provided with an avoidance recess 213-1, and the avoidance recess 213-1 is connected to the side and outer side of the first forming block 21. The front side of the mounting plate 1 opposite to the avoidance recess 213-1 is provided with an avoidance through hole 11, and the avoidance through hole 11 is connected to the avoidance recess 213-1. The movable block 31 is movably arranged between the avoidance recess 213-1 and the avoidance through hole 11.

[0038] A pre-compression position is formed above the avoidance through hole 11 and the avoidance recess 213 - 1 .

[0039] The telescopic power source is fixedly arranged on the back of the mounting plate 1, and the rear side surface of the movable block 31 is fixedly connected to the movable part of the telescopic power source.

[0040] The telescopic power source of this embodiment is a common power device for driving linear motion, such as a cylinder.

[0041] A second arc-shaped portion 311 is disposed on the outer side of the movable block 31 along the arc length direction of the first arc-shaped portion 213 . The curvature of the second arc-shaped portion 311 is greater than that of the first arc-shaped portion 213 .

[0042] Furthermore, a third arc-shaped portion 312 is protruding from the surface of the movable block 31 along the arc length direction of the first arc-shaped portion 213 . In this embodiment, the curvature of the third arc-shaped portion 312 corresponds to the curvature of the first arc-shaped portion 213 .

[0043] Reference Figure 1-Figure 4 Specifically, the present invention also provides a metal handle forming device and forming method, comprising the following steps:

[0044] S1: The strip metal strip 61 with the handle 61 is placed on the horizontal section 211 by an automated device, and the handle is placed in the receiving groove 212;

[0045] S2: The limiting power source drives the limiting block 23 to move toward the accommodating groove 212 to abut against the handle, so as to prevent the metal strip from shifting during the forming process, resulting in deformation of the handle shape after forming;

[0046] S3: The telescopic power source drives the movable block 31 to extend out of the avoidance through hole 11, so that the second arc-shaped portion 311 is set in the pre-pressed position;

[0047] S4: The pressing module presses the strip metal bar to the end of the first arc portion 213, and the arc surface of the horizontal section 211 and the second arc portion 311 form a gripping section 51 and a pre-pressed arc on the strip metal bar;

[0048] S5: The telescopic power source drives the movable block 31 to reset. At this time, the second arc-shaped portion 311 is disposed in the avoidance through hole 11, the front side surface of the movable block 31 is flush with the front side surface of the mounting plate 1, and a continuous forming position is formed between the arc surface of the first arc-shaped portion 213 and the arc surface of the third arc-shaped portion 312;

[0049] S6: the pressing module continues to press down to the vertical portion 221. At this time, the arc of the pre-pressed metal strip forms an arc segment 52 under the action of the forming position, and the end of the metal strip forms a vertical segment 53 under the action of the vertical portion 221.

[0050] S7: Based on S3, according to the diameter of the metal strip, the second arc portion 311 protrudes from the front side of the mounting plate 1 by 5-10 mm.

[0051] S8: Based on S4, the arc length pre-pressed by the second arc portion 311 is 15-20 mm greater than the arc length of the arc segment 52 after forming.

[0052] Compared with the prior art, the present invention sets a preforming module 3 on the forming mold 2, and forms the arc section 52 of the handle in sections, so that it is not easy to rebound after forming, the forming effect is better, and it is firm and not easy to fall off after being assembled with the barrel body.

[0053] The overall structure of the prefabricated molding module is simple and effective, with the advantages of low cost and quick adaptation to existing equipment.

[0054] Of course, the above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any modifications made according to the spirit of the main technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A metal handle forming device, characterized in that: The invention comprises a mounting plate (1), a forming die (2), a preforming module (3) and a pressing module, wherein the forming die (2) comprises a first forming block (21), the first forming block (21) being fixedly arranged on the front end surface of the mounting plate (1), a horizontal section (211) being arranged on the top of the first forming block (21), and first arc-shaped portions (213) being arranged on both sides thereof, the first arc-shaped portion (213) being arranged downward from the end of the horizontal section (211), and a first arc-shaped portion (213) being arranged above the first arc-shaped portion (213) in the arc length direction. There is a pre-pressing position, the pre-forming module (3) is movably arranged in the pre-pressing position, the metal strip is horizontally placed on the horizontal section (211), the pre-forming module (3) extends into the pre-pressing position, and then the two ends of the metal strip are pressed down by the pressing module and cooperate with the pre-forming module (3) to pre-press an arc on the metal strip, the pre-forming module (3) contracts and leaves the pre-pressing position, and then the pressing module cooperates with the arc surface of the first arc-shaped portion (213) to form the pre-pressed arc into the arc of the arc section (52); The preforming module (3) comprises a movable block (31) and a telescopic power source, the movable block (31) being movably arranged in the mounting plate (1) or in the pre-pressing position, and the telescopic power source being fixedly arranged on the rear side of the mounting plate and driving the movable block (31) to perform a telescopic action; The first arc-shaped portion (213) is provided with an avoidance recess (213-1), and a front side surface of the mounting plate (1) opposite to the avoidance recess (213-1) is provided with an avoidance through hole (11), the avoidance through hole (11) is in conduction with the avoidance recess (213-1), and the pre-compression position is formed between the avoidance through hole (11) and the avoidance recess (213-1); The outer edge of the movable block (31) is arranged as a second arc-shaped portion (311) along the arc length direction of the first arc-shaped portion (213), and the curvature of the second arc-shaped portion (311) is greater than the curvature of the first arc-shaped portion (213); A third arc-shaped portion (313) is protruding from the front end surface of the movable block (31) along the arc length direction of the first arc-shaped portion (213), and the curvature of the arc surface of the third arc-shaped portion (313) corresponds to the curvature of the first arc-shaped portion (213).

2. The metal handle forming device according to claim 1, characterized in that: A receiving groove (212) is provided downwardly in the middle of the horizontal section (211).

3. The metal handle forming device according to claim 2, characterized in that: A limiting module is arranged outside the accommodating groove (212), the limiting module comprising a limiting power source and a limiting block (23), the limiting power source being fixedly arranged on the front side of the first forming block (21), and the limiting power source driving the limiting block (23) to be placed in or away from the accommodating groove (212).

4. A forming method of the metal handle forming device according to claim 1, characterized in that: The steps include: S1. placing a metal strip (61) on the horizontal section (211) by automated equipment; S2, the telescopic power source drives the movable block (31) to move outward, so that the second arc-shaped portion (311) extends out from the avoidance through hole (11) and is set in the pre-pressed position; S3, the pressing module presses the metal strip downward to the end of the first arc-shaped portion (213), so that a gripping portion (51) and a pre-pressed arc are formed on the metal strip under the action of the arc surfaces of the horizontal section (211) and the second arc-shaped portion (311); S4, the telescopic power source drives the second arc-shaped portion (311) to be disposed in the avoidance through hole (11), so that a continuous forming position is formed between the third arc-shaped portion (313) and the first arc-shaped portion (213); S5: The pressing module continues to press downward, and the pre-pressed arc continues to be squeezed downward in the forming position to deform into an arc segment (52).

5. The forming method of the metal handle forming device according to claim 4, characterized in that: Based on S3, the second arc-shaped portion (311) protrudes from the mounting plate by 5-10 mm.

6. The forming method of the metal handle forming device according to claim 4, characterized in that: The arc length of the arc preformed by the second arc-shaped portion (311) is greater than the arc length of the arc-shaped segment (52) in the final form, and the difference in arc length is 15-20 mm.

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