Fuse automatic bending device and fuse bending process thereof

Abstract

The application discloses a kind of fuse automatic bending device and its fuse bending process, including dynamic seat, base, pressing assembly, pre-pressing demolding assembly, movable bearing assembly and side pressure component, fixed pressing seat includes two, two fixed pressing seat is respectively correspondingly interval and set in the bottom of dynamic seat two sides, first sliding slot is formed between two fixed pressing seat;Pressing assembly is slidably set in first sliding slot along vertical direction;The bottom of pressing assembly is equipped with first pressing surface and second pressing surface;Pre-pressing demolding assembly includes at least two groups, at least two groups pre-pressing demolding assembly are set in pressing assembly;Second sliding slot is opened in base and recessed downward;Movable bearing assembly is set in second sliding slot;Side pressure component includes two groups, two groups side pressure component are correspondingly set in the two sides of second sliding slot.The application realizes the vertical bending of the two ends of planar fuse and the horizontal bending of the upper end after vertical bending, effectively improves the bending efficiency of fuse, and reduces the bending cost.

Description

Technical Field

[0001] This invention relates to the field of automated equipment, and in particular to an automatic filament bending device and its filament bending process. Background Technology

[0002] A fuse is an electrical device that breaks the circuit by melting its fusible element when the current exceeds a specified value. Fuses are current protection devices that utilize the principle that when the current exceeds a specified value for a certain period, the heat generated by the fuse itself melts the fusible element, thus breaking the circuit. Fuses are widely used in high and low voltage power distribution systems, control systems, and electrical equipment as short-circuit and overcurrent protectors, and are one of the most commonly used protective devices.

[0003] One of the key components in the structure of a fuse is the fuse wire, which is a metal sheet structure that is inserted into the rectangular ceramic housing of the fuse. The ends of the fuse wire extend from both ends of the ceramic housing and are bent and attached to the ceramic housing, and are connected and fixed to the terminals assembled on the outside of the ceramic housing.

[0004] In the fuse manufacturing process, the incoming material is a metal strip structure, which needs to be cut into a flat sheet structure. Then, the flat fuse wire is bent into an arc-shaped structure before being assembled into the ceramic housing of the fuse. The following technical problems need to be solved in the fuse bending process: the existing bending process requires at least two sets of dies to complete the bending. That is, one set of dies is used to bend both ends of the flat fuse wire upward to the vertical direction, and then another set of dies is used to bend the upper end of the vertically bent fuse wire to the horizontal direction. The above process is complex, the fuse bending cost is high, the bending time is long, and the bending capacity is low. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to address the shortcomings of the prior art by providing an automatic fuse bending device and its fuse bending process that uses a single power and single vertical drive to achieve vertical bending of both ends of a planar fuse and horizontal bending of the upper end after vertical bending, thereby effectively improving the fuse bending efficiency and reducing the bending cost.

[0006] The technical solution adopted in this invention is as follows: An automatic filament bending device includes a movable seat and a base arranged parallel to each other at intervals. The base is fixedly installed, and the movable seat is connected to a power mechanism above it and is driven by the power mechanism to move up and down in the vertical direction. It also includes a fixed pressure seat, a material pressing assembly, a pre-pressing demolding assembly, a movable bearing assembly, and a side pressure assembly.

[0007] The fixed pressure seat includes two pieces, which are respectively arranged at intervals on both sides of the bottom of the movable seat, and a first sliding groove is formed between the two fixed pressure seats;

[0008] The pressing assembly is slidably disposed in the first groove in the vertical direction and elastically connected to the moving seat; the bottom of the pressing assembly is provided with a first pressing surface and a second pressing surface; the height of the second pressing surface is higher than that of the first pressing surface;

[0009] The pre-compression demolding assembly includes at least two sets, which are disposed inside the pressing assembly and are elastically connected to the pressing assembly in the vertical direction;

[0010] The base is provided with a downwardly recessed second sliding groove;

[0011] The movable bearing component is disposed in the second slide groove and is elastically connected to the base in the vertical direction;

[0012] The side pressure assembly includes two sets, which are respectively disposed on both sides of the second slide groove. The side pressure assembly is movably connected to the base along the inclined direction and has internal elasticity.

[0013] At least two fuses are horizontally placed on the movable bearing assembly, with both sides of the fuses extending outwards to the top of the two sets of side pressure assemblies. The moving base drives the pressure assembly and the pre-pressure demolding assembly to descend synchronously. The pre-pressure demolding assembly first presses down on the fuses, and the pressure assembly continues to descend until the pre-pressure demolding assembly retracts into the pressure assembly. The pressure assembly continues to descend and presses down on the movable bearing assembly through the first pressure surface, causing the movable bearing assembly to move downwards. The middle part of the fuse descends and the two ends tilt upwards at an angle. Then, the second pressure surface presses down on the side pressure assembly, causing the side pressure assembly to descend in an inclined direction and move inwards. The moving base continues to descend and presses the tilted ends of the fuse onto the side pressure assembly through the fixed pressure base. At the same time, the side pressure assembly presses the fuse onto the movable bearing assembly from the side in a horizontal direction.

[0014] Preferably, the fuse has a sheet-like structure, and the bent fuse includes a main sheet portion in the middle, a first bent portion at both ends of the main sheet portion, and a second bent portion outside the first bent portion; the first bent portion is bent upward relative to the main sheet portion along a first bent line to the vertical direction; the second bent portion is bent outward relative to the first bent portion along a second bent line from the vertical direction to the horizontal direction.

[0015] Preferably, the pressing assembly includes a pressing block and a first spring, wherein the pressing block is disposed in a first groove; the first spring includes at least two springs, which are vertically arranged and connected at both ends to the moving seat and the pressing block respectively; the first pressing surface is disposed at the bottom of the pressing block; stepped surfaces are provided on both sides of the first pressing surface, and a second pressing surface is formed at the stepped surfaces, and a height difference is formed between the second pressing surface and the first pressing surface.

[0016] Preferably, the pressing block has at least two through mounting holes; the at least two sets of pre-pressing demolding components are disposed in the mounting holes.

[0017] Preferably, the pre-press demolding assembly includes a pressure post and a second spring, wherein the second spring is vertically disposed in the mounting hole and its upper end is connected to the moving seat; the pressure post is connected to the lower end of the second spring; in its natural state, the elastic force of the second spring pushes the pressure post downward so that it extends outward from the first pressure surface; during bending, the pressure post first contacts the molten wire, and as the pressure block continues to descend, the pressure post maintains pressure on the molten wire while the reaction force of the molten wire drives the second spring to compress, causing the pressure post to gradually retract into the mounting hole; after bending is completed, when the pressure block moves upward, the elastic force of the second spring drives the pressure post downward to push the molten wire, causing it to separate from the pressure block.

[0018] Preferably, the second slide groove is provided with at least two limiting blocks on its side; a connecting slide is provided on each of the two sides of the second slide groove; the connecting slide moves freely in the vertical direction and is guided and limited by the limiting blocks; a downwardly recessed mounting groove is provided on the base outside the connecting slide; a spring sleeve is provided horizontally on the outer wall of the connecting slide.

[0019] Preferably, the side-pressure assembly includes an inclined guide seat, a side-pressure slider, and a third spring. The inclined guide seat is fixedly disposed in the mounting groove, and the upper part of the inclined guide seat has a first inclined surface extending outward from bottom to top. The side-pressure slider is disposed on the inner side of the inclined guide seat, and the lower part of the side-pressure slider has an inclined portion. The outer side of the inclined portion has a second inclined surface with the same inclination direction as the first inclined surface. The inner side of the inclined portion has a horizontally extending third spring, and the inner end of the third spring is connected to the spring sleeve of the connecting slide. In its natural state, the third spring pushes the side-pressure slider outward, causing it to tend to move upward on the first inclined surface of the inclined guide seat via the second inclined surface. When the fuse is bent, the pressure assembly presses the side-pressure slider down from above, causing it to move inward along the first inclined surface, and the third spring is compressed.

[0020] Preferably, the movable bearing assembly includes a fourth spring and a bearing seat, wherein the fourth spring includes at least two springs, which are vertically arranged in the second groove; the bearing seat is horizontally arranged above the fourth spring and supported by the fourth spring; in its natural state, the fourth spring pushes the bearing seat upward; when the fuse is bent, the pressing assembly presses down on the bearing seat and the fuse on it, and the fourth spring is compressed.

[0021] Preferably, the base has a detachable base plate at its bottom; the movable load-bearing component is connected to the base plate.

[0022] A fuse bending process for an automatic fuse bending device includes the following steps:

[0023] S1. Feeding: The fuse to be bent is placed horizontally on the movable support component, with both sides of the fuse extending horizontally to the side pressure component on the outside of the movable support component.

[0024] S2, Pre-press: The moving seat drives the pressing assembly and the pre-press demolding assembly to descend synchronously. The pre-press demolding assembly first contacts and pre-presses the fuse placed on the movable bearing assembly in step S1. As the moving seat continues to descend, the pre-press demolding assembly maintains the pressure on the fuse while gradually retracting into the pressing assembly.

[0025] S3, First pressing: After the pre-press demolding component in step S2 is completely retracted into the pressing component, the first pressing surface of the pressing component contacts and presses down the fuse. As the moving seat continues to descend, the pressing component presses the movable bearing component into the second slide groove. The middle part of the fuse is pressed down by the pressing component, and its two ends are raised on the side pressing component.

[0026] S4, Secondary pressing: After the two ends of the fuse in step S3 are raised, as the moving seat continues to descend, the second pressing surface of the pressing assembly contacts and presses down the side pressing assembly, so that the side pressing assembly gradually moves inward toward the fuse in the inclined downward direction and presses the fuse against the pressing assembly from the side.

[0027] S5. Three-stage pressing and side pressing: After the pressing component in step S4 contacts and presses down the side pressing component, as the moving seat continues to descend, the pressing component drives the side pressing component to descend until the side pressing component bends the fuse end to the vertical direction and presses it against the side of the pressing component; the fixed pressing seats on both sides of the pressing component press down the raised parts of the fuse ends to the horizontal direction from above and attach them to the side pressing component.

[0028] The beneficial effects of this invention are as follows:

[0029] This invention addresses the shortcomings and deficiencies of existing technologies by independently developing and designing an automatic fuse bending device and its process that enables vertical bending of both ends of a planar fuse and horizontal bending of the upper end after vertical bending, thereby effectively improving fuse bending efficiency and reducing bending costs.

[0030] The present invention aims to provide an automatic bending scheme for a metal sheet-shaped fuse, which bends the sheet-shaped fuse into an arc-shaped fuse including a main sheet portion in the middle, first bending portions located at both ends of the main sheet portion, and a second bending portion located outside the first bending portion; the first bending portion bends upward relative to the main sheet portion along the first bending line to the vertical direction; the second bending portion bends outward relative to the first bending portion along the second bending line from the vertical direction to the horizontal direction.

[0031] Based on the process requirements of fused wire bending and existing defects, this invention provides fixed pressure seats on both sides of the bottom of the moving base, forming a first sliding groove between the two fixed pressure seats. A pressure assembly is movably arranged in the first sliding groove, and a pre-pressing demolding assembly is inserted through the pressure assembly. The bottom of the pressure assembly forms a first pressure surface and a second pressure surface with a height difference. At the same time, a second sliding groove is provided on the base, and a movable bearing assembly is movably arranged in the second sliding groove along the vertical direction. A limiting block is provided around the edge of the second sliding groove, and mounting grooves are provided on the outer sides of the second sliding groove. A connecting slide is provided between the second sliding groove and the mounting groove. The connecting slide is movably arranged in the vertical direction and guided and limited by the limiting block. Side pressure assemblies are provided in the two mounting grooves, and the side pressure sliders of the side pressure assemblies are connected to the connecting slides.

[0032] During bending, the fused wire is placed horizontally on the movable support assembly, with both sides extending horizontally above the side pressure assembly. When the moving seat drives the pressure assembly and the fixed pressure seat to move downwards synchronously, the pre-pressing demolding assembly inside the pressure assembly first contacts the fused wire and pre-presses it onto the movable support assembly, achieving pre-pressing before bending. The moving seat continues to descend until the pressure column of the pre-pressing demolding assembly overcomes the elastic force of the second spring and retracts into the mounting hole of the pressure block of the pressure assembly. At this time, the first pressure surface at the bottom of the pressure block contacts and presses down on the middle of the fused wire. Position; As the moving base continues to descend, the pressure block drives the middle part of the fuse to press down against the support seat of the movable support component below. During this process, the pressure block and support seat maintain the state of clamping the fuse and descend synchronously by a height difference (the height difference between the first and second pressure surfaces). The middle part of the fuse sinks, while the two ends gradually tilt upwards. As the moving base continues to descend, the second pressure surface of the pressure block contacts and presses down on the connecting slide. The connecting slide drives the side pressure slider of the side pressure component to descend. Since the side pressure slider is connected to the first inclined surface at the top of the inclined guide fixed in the mounting groove via its second inclined surface, when subjected to downward pressure, the side pressure slider tilts downwards and inwards along the direction of the first inclined surface. That is, the inner wall of the side pressure slider gradually presses against the side of the tilted fuse from the outside direction, and gradually presses the fuse against the side wall of the pressure block in the horizontal direction. During this process, the middle part of the fuse is bent downwards by the pressure block, while the tilted ends are gradually bent from the horizontal direction to the vertical direction by the side pressure slider. As the moving base continues to press down, the middle part of the fuse located on the pressure block... The fixed pressure seats on both sides press down and bend the upper end of the molten wire that is raised at both ends and pressed by the side pressure slider, so that it gradually comes into horizontal contact with the top surface of the side pressure slider from the raised inclined state, thus completing the final bending of the molten wire. During this process, the height of the pressure block does not decrease, but it moves upward relative to the moving seat. That is, the first spring connecting the pressure block is pressed upward, so that the pressure block retracts upward into the first slide groove. At the same time, the side pressure slider presses the molten wire until it is bent to 90° and pressed against the side wall of the pressure block. Conversely, after the fused wire is pressed and bent, when the moving seat drives the pressure assembly and the fixed pressure seat to move upward, the fixed pressure seat first disengages from the fused wire, and then the second pressure surface of the pressure block disengages from the connecting slide. After the downward pressure disappears, the side pressure slider is driven to move outward by the rebound force of the third spring to release the fused wire. Then the first pressure surface of the pressure block disengages from the fused wire. During this process, the pressure column of the pre-press demolding assembly extends downward from the pressure block under the rebound force of the second spring and pushes the fused wire downward to demold. Attached Figure Description

[0033] Figure 1 This is one of the component disassembly structural diagrams of the present invention.

[0034] Figure 2 This is the second schematic diagram of the component disassembly structure of the present invention.

[0035] Figure 3for Figure 2 Enlarged structural diagram at point I.

[0036] Figure 4 This is a three-dimensional structural diagram of the present invention.

[0037] Figure 5 This is one of the three-dimensional structural diagrams of the hidden components of the present invention.

[0038] Figure 6 This is the second three-dimensional structural diagram of the present invention after the hidden components are shown.

[0039] Figure 7 This is a three-dimensional structural diagram of the fused wire and its bent state according to the present invention.

[0040] Figure 8 This is a schematic diagram of the structure of the fused wire after bending according to the present invention. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0042] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0043] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; 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 communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0044] like Figures 1 to 8 As shown, an automatic filament bending device includes a movable seat 1 and a base 7 arranged parallel to each other vertically. The base 7 is fixedly installed. The movable seat 1 is connected to a power mechanism above it and is driven by the power mechanism to move vertically up and down. It also includes a fixed pressure seat 2, a material pressing assembly, a pre-pressing demolding assembly, a movable bearing assembly, and a side pressure assembly.

[0045] The fixed pressure seat 2 includes two pieces, which are respectively arranged at intervals on both sides of the bottom of the movable seat 1, and a first sliding groove A is formed between the two fixed pressure seats 2;

[0046] The pressing assembly is slidably disposed in the first groove A in the vertical direction and is elastically connected to the moving seat 1; the bottom of the pressing assembly is provided with a first pressing surface c and a second pressing surface d; the height of the second pressing surface d is higher than that of the first pressing surface c;

[0047] The pre-compression demolding assembly includes at least two sets, which are disposed inside the pressing assembly and are elastically connected to the pressing assembly in the vertical direction;

[0048] The base 7 is provided with a downwardly recessed second sliding groove B;

[0049] The movable bearing component is disposed in the second slide B and is elastically connected to the base 7 in the vertical direction;

[0050] The side pressure assembly includes two sets, which are respectively disposed on both sides of the second slide groove B. The side pressure assembly is movably connected to the base 7 along the inclined direction and has elasticity inside.

[0051] At least two fuses 0 are horizontally placed on the movable bearing assembly, with both sides of the at least two fuses 0 extending outward to the top of the two sets of side pressure assemblies respectively; the movable seat 1 drives the pressure assembly and the pre-pressure demolding assembly to descend synchronously. The pre-pressure demolding assembly first presses down on the fuses 0, and the pressure assembly continues to descend until the pre-pressure demolding assembly retracts into the pressure assembly; the pressure assembly continues to descend and presses down on the movable bearing assembly through the first pressure surface c, causing the movable bearing assembly to move downward, the middle part of the fuses 0 descends and the two ends tilt upward, and then presses down on the side pressure assembly through the second pressure surface d, causing the side pressure assembly to descend in the inclined direction and move inward; the movable seat 1 continues to descend and presses the tilted ends of the fuses 0 flat onto the side pressure assembly through the fixed pressure seat 2, while the side pressure assembly presses the fuses 0 onto the movable bearing assembly from the side in the horizontal direction.

[0052] This invention designs an automatic fuse bending device and its bending process that achieves vertical bending of both ends of a planar fuse and horizontal bending of the upper end after vertical bending using a single-power, single-cycle vertical drive, effectively improving fuse bending efficiency and reducing bending costs. This invention aims to provide an automatic bending scheme for sheet-shaped fuses, which bends a sheet-like fuse into an arc-shaped fuse including a main sheet portion 01 in the middle, first bending portions 04 located at both ends of the main sheet portion 01, and second bending portions 05 located outside the first bending portions 04; the first bending portions 04 bend upwards relative to the main sheet portion 01 along a first bending line 02 to the vertical direction; the second bending portions 05 bend outwards relative to the first bending portions 04 along a second bending line 03 from the vertical direction to the horizontal direction.

[0053] like Figures 7 to 8 As shown, in one embodiment of the present invention, the fuse 0 of the present invention has a sheet-like structure. The bent fuse 0 includes a main sheet portion 01 in the middle, a first bent portion 04 located at both ends of the main sheet portion 01, and a second bent portion 05 located outside the first bent portion 04. The first bent portion 04 is bent upward relative to the main sheet portion 01 along the first bent line 02 to the vertical direction. The second bent portion 05 is bent outward relative to the first bent portion 04 along the second bent line 03 from the vertical direction to the horizontal direction.

[0054] like Figures 1 to 8 As shown in the figure, as an embodiment of the present invention, the pressing assembly of the present invention includes a pressing block 3 and a first spring 4, wherein the pressing block 3 is disposed in a first sliding groove A; the first spring 4 includes at least two springs, the at least two springs 4 are vertically disposed, and their two ends are respectively connected to the moving seat 1 and the pressing block 3; the first pressing surface c is disposed at the bottom of the pressing block 3; the two sides of the first pressing surface c are provided with stepped surfaces, and a second pressing surface d is formed at the stepped surfaces, and a height difference is formed between the second pressing surface d and the first pressing surface c.

[0055] The pressure block 3 has at least two through mounting holes; the at least two sets of pre-press demolding components are installed in the mounting holes.

[0056] The pre-press demolding assembly includes a pressure post 6 and a second spring 5. The second spring 5 is vertically installed in the mounting hole, and its upper end is connected to the moving seat 1. The pressure post 6 is connected to the lower end of the second spring 5. In its natural state, the elastic force of the second spring 5 pushes the pressure post 6 down so that it extends outward from the first pressing surface c. During bending, the pressure post 6 first contacts the molten wire, and as the pressing block 3 continues to descend, the pressure post 6 maintains pressure on the molten wire 0 while the reaction force of the molten wire 0 drives the second spring 5 to compress, causing the pressure post 6 to gradually retract into the mounting hole. After bending is completed, when the pressing block 3 moves upward, the elastic force of the second spring 5 drives the pressure post 6 to push the molten wire 0 downward, causing it to separate from the pressing block 3.

[0057] The second slide rail B has at least two limiting blocks 16 on its side; the two sides of the second slide rail B are respectively provided with connecting slides 8; the connecting slides 8 move freely in the vertical direction and are guided and limited by the limiting blocks 16; the base 7 on the outer side of the connecting slides 8 is provided with a downwardly recessed mounting groove C; the outer side wall of the connecting slides 8 is provided with a spring sleeve 12 horizontally.

[0058] The side-pressure assembly includes an inclined guide seat 9, a side-pressure slider 10, and a third spring 11. The inclined guide seat 9 is fixedly disposed in the mounting groove C, and the upper part of the inclined guide seat 9 has a first inclined surface a extending outward from bottom to top. The side-pressure slider 10 is disposed inside the inclined guide seat 9, and the lower part of the side-pressure slider 10 has an inclined portion. The outer side of the inclined portion has a second inclined surface b with the same inclination direction as the first inclined surface a. The inner side of the inclined portion has a horizontally extending third spring 11, and the inner end of the third spring 11 is connected to the spring sleeve 12 of the connecting slide 8. In its natural state, the third spring 11 pushes the side-pressure slider 10 outward, causing it to tend to move upward at an angle on the first inclined surface a on the inclined guide seat 9 via the second inclined surface b. When the fuse is bent, the pressure assembly presses the side-pressure slider 10 down from above, causing it to move inward at an angle along the first inclined surface a, and the third spring 11 is compressed.

[0059] The movable support assembly includes a fourth spring 13 and a support seat 14. The fourth spring 13 includes at least two springs, which are vertically arranged in the second slide groove B. The support seat 14 is horizontally arranged above the fourth spring 13 and supported by the fourth spring 13. In its natural state, the fourth spring 13 pushes the support seat 14 upward. When the fuse is bent, the pressing assembly presses down on the support seat 14 and the fuse 0 on it, and the fourth spring 13 is compressed.

[0060] The bottom of the base 7 is detachably provided with a base plate 15; the movable load-bearing component is connected to the base plate 15.

[0061] like Figures 1 to 8 As shown in the figure, as an embodiment of the present invention, the fuse bending process of the automatic fuse bending device of the present invention includes the following process steps:

[0062] S1. Feeding: The fuse to be bent is placed horizontally on the movable support component, with both sides of the fuse extending horizontally to the side pressure component on the outside of the movable support component.

[0063] S2, Pre-press: The moving seat drives the pressing assembly and the pre-press demolding assembly to descend synchronously. The pre-press demolding assembly first contacts and pre-presses the fuse placed on the movable bearing assembly in step S1. As the moving seat continues to descend, the pre-press demolding assembly maintains the pressure on the fuse while gradually retracting into the pressing assembly.

[0064] S3, First pressing: After the pre-press demolding component in step S2 is completely retracted into the pressing component, the first pressing surface of the pressing component contacts and presses down the fuse. As the moving seat continues to descend, the pressing component presses the movable bearing component into the second slide groove. The middle part of the fuse is pressed down by the pressing component, and its two ends are raised on the side pressing component.

[0065] S4, Secondary pressing: After the two ends of the fuse in step S3 are raised, as the moving seat continues to descend, the second pressing surface of the pressing assembly contacts and presses down the side pressing assembly, so that the side pressing assembly gradually moves inward toward the fuse in the inclined downward direction and presses the fuse against the pressing assembly from the side.

[0066] S5. Three-stage pressing and side pressing: After the pressing component in step S4 contacts and presses down the side pressing component, as the moving seat continues to descend, the pressing component drives the side pressing component to descend until the side pressing component bends the fuse end to the vertical direction and presses it against the side of the pressing component; the fixed pressing seats on both sides of the pressing component press down the raised parts of the fuse ends to the horizontal direction from above and attach them to the side pressing component.

[0067] As an embodiment of the present invention, a wire bending machine including the automatic wire bending device of the present invention should also fall within the protection scope of the present invention.

[0068] Furthermore, based on the process requirements of fused wire bending and existing defects, the present invention provides fixed pressure seats 2 on both sides of the bottom of the movable seat 1, forming a first sliding groove A between the two fixed pressure seats. A pressing component is movably arranged in the first sliding groove A, and a pre-pressing demolding component is inserted through the pressing component. The bottom of the pressing component forms a first pressing surface c and a second pressing surface d with a height difference. At the same time, a second sliding groove B is provided on the base 7, and a movable bearing component is movably arranged in the second sliding groove B along the vertical direction. A limiting block 16 is provided around the edge of the second sliding groove B, and mounting grooves C are respectively provided on the outer sides of the second sliding groove B. A connecting slide 8 is provided between the second sliding groove B and the mounting groove C. The connecting slide 8 is movably arranged in the vertical direction and guided and limited by the limiting block 16. A side pressing component is provided in each of the two mounting grooves C, and the side pressing slider 10 of the side pressing component is connected to the connecting slide 8.

[0069] During bending, the fuse 0 is placed horizontally on the movable support assembly, with both sides extending horizontally above the side pressure assembly. When the moving seat 1 drives the pressure assembly and the fixed pressure seat to move downwards synchronously, the pre-pressing demolding assembly inside the pressure assembly first contacts the fuse 0 and pre-presses the fuse 0 onto the movable support assembly, achieving pre-pressing before bending. The moving seat 1 continues to descend until the pressure column 6 of the pre-pressing demolding assembly overcomes the elastic force of the second spring 5 and retracts into the mounting hole of the pressure block 3 of the pressure assembly. At this time, the first pressure surface C at the bottom of the pressure block 3 contacts and presses down on the middle position of the fuse. As the moving seat 1 continues to descend, the pressure column 6 of the pre-pressing demolding assembly retracts into the mounting hole of the pressure block 3 of the pressure assembly. At this time, the first pressure surface C at the bottom of the pressure block 3 contacts and presses down on the middle position of the fuse. As seat 1 continues to descend, pressure block 3 causes the middle part of the fuse to press down against the support seat 14 of the movable support component below. During this process, pressure block 3 and support seat 14 maintain the state of clamping the fuse 0 and descend synchronously by a height difference (the height difference between the first pressure surface c and the second pressure surface d). The middle part of the fuse 0 sinks, while both ends gradually tilt upwards. As seat 1 continues to descend, the second pressure surface d of pressure block 3 contacts and presses down on the connecting slide 8. The connecting slide 8 then drives the side pressure slider 10 of the side pressure component to descend. Since the side pressure slider 10 is connected to the fixed support seat 14 via its second inclined surface b at the bottom... The first inclined surface a of the inclined guide seat 9 located in the mounting groove C is connected to the first inclined surface a. When subjected to downward pressure, the side pressure slider 10 moves downward and inward along the direction of the first inclined surface a. That is, the inner wall of the side pressure slider 10 gradually presses against the side of the raised fuse 0 from the outside direction, and gradually presses the fuse against the side wall of the pressure block 3 in the horizontal direction. During this process, the middle part of the fuse 0 is bent downward by the pressure block 3, and at the same time, the raised parts at both ends are gradually bent from the horizontal direction to the vertical direction by the side pressure slider 10. As the moving seat 1 continues to press down, the two ends of the fuse 0 are pressed against the side wall of the pressure block 3. The fixed pressure seat 2 on the side presses down and bends the upper end of the raised part of the fuse 0, which is raised at both ends and pressed by the side pressure slider 10, so that it gradually comes into horizontal contact with the top surface of the side pressure slider 10 from the raised inclined state, thus completing the final bending of the fuse 0. During this process, the height of the pressure block 3 does not decrease, but it moves upward relative to the moving seat 1. That is, the first spring 4 connecting the pressure block 3 is pressed upward, so that the pressure block 3 retracts upward into the first slide groove A. At the same time, the side pressure slider 10 presses the fuse 0 until it is bent to 90° and pressed against the side wall of the pressure block 3. Conversely, after the molten wire is pressed and bent, when the moving seat 1 drives the pressing assembly and the fixed pressing seat 2 to move upward, the fixed pressing seat 2 first disengages from the molten wire 0, and then the second pressing surface d of the pressing block 3 disengages from the connecting slide 8. After the downward pressure disappears, the side pressing slider 10 is driven to move outward by the rebound force of the third spring 11 to release the molten wire 0. Then the first pressing surface a of the pressing block 3 disengages from the molten wire 0. During this process, the pressing column 6 of the pre-press demolding assembly extends downward from the pressing block 3 under the rebound force of the second spring 5 and pushes the molten wire 0 downward to demold.

[0070] The embodiments of this invention are merely illustrative of specific implementation methods and are not intended to limit the scope of protection. Those skilled in the art can make modifications based on these embodiments; therefore, all equivalent changes or modifications made in accordance with the scope of this invention's patent claims fall within the scope of this invention's patent claims.

Claims

1. An automatic filament bending device, comprising a movable seat (1) and a base (7) arranged parallel to each other at intervals, the base (7) being fixedly disposed, the movable seat (1) being connected to a power mechanism above it and being driven by the power mechanism to move vertically up and down, characterized in that: It also includes a fixed pressure base (2), a pressure assembly, a pre-press demolding assembly, a movable bearing assembly, and a side pressure assembly, wherein, The fixed pressure seat (2) includes two pieces, and the two fixed pressure seats (2) are respectively arranged at intervals on both sides of the bottom of the movable seat (1), and a first sliding groove (A) is formed between the two fixed pressure seats (2). The pressing assembly is slidably disposed in the first groove (A) in the vertical direction and is elastically connected to the moving seat (1); the bottom of the pressing assembly is provided with a first pressing surface (c) and a second pressing surface (d); the height of the second pressing surface (d) is higher than that of the first pressing surface (c). The pre-compression demolding assembly includes at least two sets, which are disposed inside the pressing assembly and are elastically connected to the pressing assembly in the vertical direction; The base (7) is provided with a downwardly recessed second groove (B); The movable bearing component is disposed in the second slide (B) and is elastically connected to the base (7) in the vertical direction; The side pressure assembly includes two sets, which are respectively disposed on both sides of the second slide groove (B). The side pressure assembly is movably connected to the base (7) along the inclined direction and has elasticity inside. At least two fuses (0) are placed horizontally on the movable bearing assembly, and the two sides of the at least two fuses (0) extend outward to the top of the two sets of side pressure assemblies respectively; the moving seat (1) drives the pressing assembly and the pre-press demolding assembly to descend synchronously. The pre-press demolding assembly first presses down the fuses (0), and the pressing assembly continues to descend until the pre-press demolding assembly retracts into the pressing assembly; the pressing assembly continues to descend and presses down the movable bearing assembly through the first pressing surface (c), so that the movable bearing assembly moves downward, the middle part of the fuse (0) descends and the two ends tilt upward, and then the side pressure assembly is pressed down through the second pressing surface (d), so that the side pressure assembly descends in the inclined direction and moves inward; the moving seat (1) continues to descend and presses the tilted parts of the fuse (0) on the side pressure assembly through the fixed pressing seat (2), while the side pressure assembly presses the fuse (0) on the movable bearing assembly from the side in the horizontal direction; The pressing assembly includes a pressing block (3) and a first spring (4), wherein the pressing block (3) is disposed in the first slide groove (A); the first spring (4) includes at least two springs, the at least two springs (4) are vertically disposed and their two ends are respectively connected to the moving seat (1) and the pressing block (3); the first pressing surface (c) is disposed at the bottom of the pressing block (3); the first pressing surface (c) has stepped surfaces on both sides, and a second pressing surface (d) is formed at the stepped surfaces, and a height difference is formed between the second pressing surface (d) and the first pressing surface (c).

2. The automatic fuse bending device according to claim 1, characterized in that: The fuse (0) has a sheet-like structure. The bent fuse (0) includes a main sheet portion (01) in the middle, a first bent portion (04) at both ends of the main sheet portion (01), and a second bent portion (05) on the outside of the first bent portion (04). The first bent portion (04) bends upward to the vertical direction relative to the main sheet portion (01) along the first bent line (02). The second bent portion (05) bends outward from the vertical direction to the horizontal direction relative to the first bent portion (04) along the second bent line (03).

3. The automatic fuse bending device according to claim 1, characterized in that: The pressing block (3) is provided with at least two through mounting holes; the at least two sets of pre-pressing demolding components are set in the mounting holes.

4. The automatic fuse bending device according to claim 3, characterized in that: The pre-press demolding assembly includes a pressure post (6) and a second spring (5). The second spring (5) is vertically installed in the mounting hole, and its upper end is connected to the moving seat (1). The pressure post (6) is connected to the lower end of the second spring (5). In its natural state, the elastic force of the second spring (5) pushes the pressure post (6) down so that it extends outward from the first pressing surface (c). When bending, the pressure post (6) first contacts the molten wire, and as the pressing block (3) continues to descend, the pressure post (6) maintains the pressing of the molten wire (0), while the reaction force of the molten wire (0) drives the second spring (5) to compress, so that the pressure post (6) gradually retracts into the mounting hole. After bending, when the pressing block (3) moves upward, the elastic force of the second spring (5) drives the pressure post (6) to push the molten wire (0) downward, so that it separates from the pressing block (3).

5. The automatic fuse bending device according to claim 1, characterized in that: The second slide (B) has at least two limiting blocks (16) on its side; the two sides of the second slide (B) are respectively provided with connecting slides (8); the connecting slides (8) move freely in the vertical direction and are guided and limited by the limiting blocks (16); the base (7) on the outside of the connecting slides (8) is provided with a downwardly recessed mounting groove (C); the outer side wall of the connecting slides (8) is provided with a spring sleeve (12) horizontally.

6. The automatic fuse bending device according to claim 5, characterized in that: The side-pressure assembly includes a slanted guide seat (9), a side-pressure slider (10), and a third spring (11). The slanted guide seat (9) is fixedly disposed in the mounting groove (C). The upper part of the slanted guide seat (9) is provided with a first inclined surface (a) extending outward from bottom to top. The side-pressure slider (10) is disposed on the inner side of the slanted guide seat (9). The lower part of the side-pressure slider (10) is provided with an inclined surface. The outer side of the inclined surface is provided with a second inclined surface (b) in the same inclination direction as the first inclined surface (a). The inner side of the inclined surface... A horizontally extending third spring (11) is provided, the inner end of which is connected to the spring sleeve (12) of the connecting slide (8); in its natural state, the third spring (11) pushes the side-pressing slider (10) outward, causing it to tend to move upward on the first inclined surface (a) of the inclined guide seat (9) via the second inclined surface (b); when the fuse is bent, the pressing assembly presses the side-pressing slider (10) down from above, causing it to move inward along the first inclined surface (a), and the third spring (11) is compressed.

7. The automatic fuse bending device according to claim 1, characterized in that: The movable support assembly includes a fourth spring (13) and a support seat (14). The fourth spring (13) includes at least two springs, which are vertically arranged in the second groove (B). The support seat (14) is horizontally arranged above the fourth spring (13) and supported by the fourth spring (13). In its natural state, the fourth spring (13) pushes the support seat (14) upward. When the fuse is bent, the pressing assembly presses down on the support seat (14) and the fuse (0) on it, and the fourth spring (13) is compressed.

8. The automatic fuse bending device according to claim 1, characterized in that: The base (7) has a detachable base plate (15) at its bottom; the movable load-bearing component is connected to the base plate (15).

9. A fuse bending process for an automatic fuse bending device as described in any one of claims 1-8, characterized in that, The process includes the following steps: S1. Feeding: The fuse to be bent is placed horizontally on the movable support component, with both sides of the fuse extending horizontally to the side pressure component on the outside of the movable support component. S2, Pre-press: The moving seat drives the pressing assembly and the pre-press demolding assembly to descend synchronously. The pre-press demolding assembly first contacts and pre-presses the fuse placed on the movable bearing assembly in step S1. As the moving seat continues to descend, the pre-press demolding assembly maintains the pressure on the fuse while gradually retracting into the pressing assembly. S3, First pressing: After the pre-press demolding component in step S2 is completely retracted into the pressing component, the first pressing surface of the pressing component contacts and presses down the fuse. As the moving seat continues to descend, the pressing component presses the movable bearing component into the second slide groove. The middle part of the fuse is pressed down by the pressing component, and its two ends are raised on the side pressing component. S4, Secondary pressing: After the two ends of the fuse in step S3 are raised, as the moving seat continues to descend, the second pressing surface of the pressing assembly contacts and presses down the side pressing assembly, so that the side pressing assembly gradually moves inward toward the fuse in the inclined downward direction and presses the fuse against the pressing assembly from the side. S5. Three-stage pressing and side pressing: After the pressing component in step S4 contacts and presses down the side pressing component, as the moving seat continues to descend, the pressing component drives the side pressing component to descend until the side pressing component bends the fuse end to the vertical direction and presses it against the side of the pressing component; the fixed pressing seats on both sides of the pressing component press down the raised parts of the fuse ends to the horizontal direction from above and attach them to the side pressing component.

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