An automatic forming apparatus for fuses

Abstract

The present application relates to a kind of automatic forming equipment suitable for fuse, comprising: forming mechanism, to perform hot bending processing to fuse;To be bent fuse straightening mechanism, it is located downstream at forming mechanism;Cutting mechanism, to cut the fuse into section after straightening;And, transfer mechanism, to move out after cutting;Wherein, forming mechanism includes forming assembly and heating assembly, heating assembly is simultaneously formed with the upper and lower pressing of fuse in the assembly of fuse, so that fuse bends;Straightening mechanism includes pulling part and clamping straight die group, pulling part pulls fuse so that bent fuse passes through clamping straight die group, to straighten bent fuse;Cutting mechanism includes cutting assembly and material taking assembly, fuse is transported by pulling part through cutting assembly and finally moves to material taking assembly, fuse is cut by cutting assembly, so that material taking assembly picks up cut section fuse and sends into transfer mechanism.

Description

Technical Field

[0001] This invention relates to the field of fuse processing technology, and more specifically to an automatic forming equipment suitable for fuses. Background Technology

[0002] A fuse, also known as a current fuse, primarily serves as overload protection. When an abnormal current occurs in a circuit, the fuse's temperature rises to a certain level, causing it to cut off the current and protect other components in the circuit. Compared to the older fuses that simply melt to cut off the current, the currently used resettable fuses deform to cut off the current after the temperature exceeds a certain safe level. These fuses commonly use shape memory metal (MMM) as their material. To ensure that the MMM "remembers" the shape within the fuse, it is necessary to process the fuse in an environment exceeding its transition temperature. Furthermore, when the temperature drops below the transition temperature, the fuse needs to be deformed to facilitate installation. However, the following problems exist during the molding process:

[0003] Because fuses are small in size and have poor heat storage capacity, their temperature fluctuates greatly, making it difficult to maintain a stable and controlled transition temperature within a fixed range. To ensure the fuse accurately "remembers" the deformed shape, current fuse manufacturing processes typically involve first switching the fuse to the required length before forming it. However, this process presents several problems: First, in the process of straightening a bent fuse after thermoforming, forces must be applied to both ends of the fuse in a straight line to straighten it. After bending, the remaining lengths at both ends are too short to grip stably, and it's difficult to ensure that both ends remain on the same straight line after bending, making straightening difficult. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention aims to provide an automated forming device suitable for fuses, comprising:

[0005] A forming mechanism used to perform hot bending on fuses;

[0006] A straightening mechanism for straightening bent fuses is located downstream of the forming mechanism;

[0007] A cutting mechanism used to cut straightened fuse wires into segments; and

[0008] A transfer mechanism, used to remove the cut fuse;

[0009] The forming mechanism includes a forming component and a heating component. The heating component presses the fuse from top to bottom onto the fuse, causing the fuse to bend.

[0010] The straightening mechanism includes a pulling part and a clamping module. The pulling part pulls the fuse so that the bent fuse passes through the clamping module to straighten the bent fuse.

[0011] The cutting mechanism includes a cutting component and a picking component. The fuse is conveyed by the pulling part through the cutting component and finally moved to the picking component. The cutting component cuts the fuse, so that the picking component picks up the cut fuse segment and sends it to the transfer mechanism.

[0012] Preferably, the cutting assembly includes a driving element and two shearing parts, the shearing parts being pivotally connected to a base surface of the cutting assembly, the driving element driving the shearing parts to perform closing or opening actions, and when the two shearing parts close, the fuse located between the two shearing parts is cut.

[0013] Preferably, the driving element drives the two shearing parts to rotate in opposite directions via a transmission part.

[0014] Preferably, the transmission part includes two connecting rods, one end of which is connected to the corresponding shearing part, and a guide wheel is installed on the other end of the connecting rod. A limiting part is installed on the power output end of the driving element, and a slot for receiving the guide wheel is opened on the limiting part. When the driving element drives the limiting part to move along a straight line, the guide wheel is in the slot, thereby driving the connecting rod to rotate around the pivot point of the shearing part connected to the connecting rod.

[0015] Preferably, the material handling assembly includes a material handling section and a drive unit. The drive unit drives the material handling assembly to move between the cutting assembly and the transfer mechanism. The drive section includes two clamping blocks that are hinged together in a cross structure. The material handling section also includes a push rod that pushes one of the clamping blocks under external force, causing the two clamping blocks to close together to hold the fuse.

[0016] Preferably, the drive unit includes a rotary cylinder, and a cantilever is fixedly installed on the rotating end of the rotary cylinder. The material handling part is installed on the cantilever, so that the rotary cylinder drives the material handling part to reciprocate between the cutting assembly and the transfer mechanism.

[0017] Preferably, the material handling assembly further includes a base for receiving the rotary cylinder, the base is equipped with a stop block, and a buffer block is installed on the cantilever. The stop block is located on the rotation path of the buffer block, and the stop block blocks the buffer block to limit the rotation angle of the cantilever.

[0018] Preferably, the clamping module extends toward the forming mechanism, and the clamping module includes an upper limit part and a lower limit part, the upper limit part and the lower limit part clamping the fuse;

[0019] The upper limit part and the lower limit part are provided with matching traction grooves. The two traction grooves are spliced ​​together to form a limit clamping and straightening module that extends toward the forming mechanism. The clamping and straightening module includes an upper limit part and a lower limit part, and the upper limit part and the lower limit part clamp the fuse.

[0020] The upper and lower limit parts are provided with matching traction grooves. The two traction grooves are spliced ​​together to form a limit hole. When the bent fuse passes through the limit hole, it is straightened again due to the restriction of the limit hole.

[0021] Preferably, the pulling part includes a transmission wheel and a drive assembly. The transmission wheel has two rollers built in it. The rollers are driven by the drive assembly so that the fuse passes through the gap between the two rollers.

[0022] Preferably, the transfer mechanism includes:

[0023] Support;

[0024] Two clamping parts are pivotally connected to the base of the support, which are used to clamp the fuse;

[0025] The pushing part, which is used to open the two clamping parts; and

[0026] A driver, which drives the pusher to reciprocate vertically;

[0027] The clamping part consists of a first clamping part and a second clamping part. A second clamping claw is installed at one end of the second clamping part, and a protrusion is provided on the side wall of the other end. The driver drives the pushing part to drive the first clamping part to rotate.

[0028] The support is also equipped with a stop, which is used to limit the rotation distance of the second clamping part. When the second clamping part abuts against the stop, the second clamping part is in a balanced state. When the second clamping part is in a balanced state, the protrusion of the second clamping part is located on the moving path of the pushing part.

[0029] The support is provided with a guide groove, and the movement path of the pushing part is restricted by the guide groove, which causes it to move back and forth between the beginning and the end, with the beginning being above the end.

[0030] When the pushing part is at the beginning, the first clamping part approaches the stop part; and when the pushing part is at the end, the pushing part abuts against the protrusion, causing the second clamping part to fall out of balance and tilt towards the first clamping part to close the two clamping parts.

[0031] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0032] This invention provides an automatic forming device for fuses. By placing the cutting mechanism downstream of the forming mechanism and the straightening mechanism, the fuse is cut after straightening, thus ensuring smooth forming. At the same time, the pulling part pulls the fuse to provide the force for the automatic forming device to transmit the force of the fuse, so that the fuse moves continuously in one transmission direction, facilitating automated fuse forming and improving production efficiency.

[0033] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it according to the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Specific embodiments of the present invention are given in detail below with reference to the accompanying drawings. Attached Figure Description

[0034] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0035] Figure 1 This is a first-view perspective three-dimensional structural diagram of the automatic forming equipment in one embodiment of the present invention;

[0036] Figure 2 This is a second-view perspective three-dimensional structural diagram of the automatic forming device in one embodiment of the present invention;

[0037] Figure 3 This is a three-dimensional structural diagram of a portion of the automatic molding equipment in one embodiment of the present invention;

[0038] Figure 4 for Figure 3 A magnified view of a portion of the image;

[0039] Figure 5 This is a first-view perspective three-dimensional structural diagram of the molding mechanism in one embodiment of the present invention;

[0040] Figure 6 for Figure 5 A magnified view of a portion of the image;

[0041] Figure 7 This is an exploded view of the molding mechanism in one embodiment of the present invention;

[0042] Figure 8 This is a second-view perspective three-dimensional structural diagram of the molding mechanism in one embodiment of the present invention;

[0043] Figure 9 for Figure 8 A magnified view of a portion of the image;

[0044] Figure 10 This is a schematic diagram of the material-taking component in the cutting mechanism at a first position in one embodiment of the present invention;

[0045] Figure 11 This is a schematic diagram of the material-taking component in the cutting mechanism at a second position in one embodiment of the present invention;

[0046] Figure 12 This is a partial structural diagram of the cutting component within the cutting mechanism in one embodiment of the present invention;

[0047] Figure 13 This is an exploded view of the material handling component in one embodiment of the present invention;

[0048] Figure 14 This is a three-dimensional structural diagram of the transfer mechanism in one embodiment of the present invention;

[0049] Figure 15 This is a partial structural schematic diagram of the transfer mechanism in one embodiment of the present invention;

[0050] Figure 16 This is a front view of the transfer mechanism in one embodiment of the present invention.

[0051] Explanation of reference numerals in the attached figures:

[0052] 100. Molding mechanism;

[0053] 110. Bracket;

[0054] 111. First connecting part; 1111. Base plate; 1112. Guide post;

[0055] 112. Sliding plate;

[0056] 113. Second connecting part;

[0057] 120. Molding component; 121. First drive unit;

[0058] 122. Pressing module; 1221. Base;

[0059] 1222, Pressure head;

[0060] 1223, Limiting part; 12231, First limiting groove; 12232, Sliding groove; 12233, Limiting post;

[0061] 1224. Cooling section;

[0062] 1226. Counterweight;

[0063] 1227. Elastic element;

[0064] 130. Heating assembly; 131. Second drive unit; 132. Heating head; 135. Connecting plate;

[0065] 140. Insulated box; 1411. Second limiting groove;

[0066] 200. Straightening mechanism;

[0067] 210. Upper limit position; 211. Wire groove; 220. Lower limit position;

[0068] 230. Driver components;

[0069] 240. Transfer wheel; 241. Roller;

[0070] 300. Cutting mechanism;

[0071] 310. Cutting assembly; 311. Driving element;

[0072] 312. Transmission unit; 3121. Connecting rod; 3122. Guide wheel;

[0073] 313, Limiting block; 3131, Groove;

[0074] 314. Shearing section; 315. Material receiving section;

[0075] 320. Material handling assembly;

[0076] 321, Rotary cylinder; 3211, Rotating end;

[0077] 322. Cantilever;

[0078] 323, Material handling section; 3231, First clamping block; 3232, Second clamping block; 3233, Push rod;

[0079] 324. Stop; 325. Buffer block;

[0080] 400. Transfer mechanism;

[0081] 410. Support; 411. Guide groove; 412. Pivot shaft;

[0082] 420. Driver;

[0083] 421. Cylinder;

[0084] 422. Mounting bracket;

[0085] 430. First clamping part;

[0086] 431. First gripper; 432. First extension block; 4321. Guide surface;

[0087] 440. Second clamping part;

[0088] 441. Second gripper;

[0089] 442. Second extension block; 4421. Clamping initial end; 4422. Extension rod; 4423. Protruding end;

[0090] 450. Stop section;

[0091] 460. Pushing part; 461. Mounting shaft; 462. Roller; 463. Mounting block.

[0092] 500. Fuse. Detailed Implementation

[0093] 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 them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0094] In the accompanying drawings, shapes and dimensions may be enlarged for clarity, and the same reference numerals will be used in all figures to indicate the same or similar parts.

[0095] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an,” “a,” or “the,” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “comprising,” “including,” and similar terms mean that the elements or objects preceding “comprising” or “including” encompass the elements or objects listed following “comprising” or “including” and their equivalents, but do not exclude other elements or objects. The terms “upper,” “lower,” “left,” and “right,” etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0096] In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, and lower are defined relative to the structure shown in the accompanying drawings. In particular, "height" corresponds to the dimension from top to bottom, "width" corresponds to the dimension from left to right, and "depth" corresponds to the dimension from front to back. These are relative concepts and may vary depending on their location and usage. Therefore, these or other orientations should not be interpreted as restrictive terms.

[0097] Terms involving attachment, connection, etc. (e.g., “connection” and “attachment”) refer to the relationship in which these structures are directly or indirectly fixed or attached to each other through an intermediate structure, as well as movable or rigid attachments or relationships, unless otherwise explicitly stated.

[0098] According to one embodiment of the present invention, Figure 1-16As can be seen, an automatic forming device for fuses includes a forming mechanism 100, a straightening mechanism 200, a cutting mechanism 300, and a transfer mechanism 400. The forming mechanism 100 is used to perform a hot bending process on the fuse 500; the straightening mechanism 200 is used to straighten the bent fuse 500, and the straightening mechanism 200 is located downstream of the forming mechanism 100; the cutting mechanism 300 is used to cut the straightened fuse 500 into segments; the transfer mechanism 400 is used to remove the cut fuse 500; the fuse 500 is conveyed along a conveying direction, and the forming mechanism 100, the straightening mechanism 200, the cutting mechanism 300, and the transfer mechanism 400 are arranged sequentially along this conveying direction.

[0099] The forming mechanism 100 is used to bend the fuse 500 into shape, and the straightening mechanism 200 is used to straighten the bent fuse 500.

[0100] The forming mechanism 100 includes a forming component 120, a heating component 130, and a support 110. The fuse 500 is made of shape memory metal. The heating component 130 is located below the forming component 120 and is used to heat the fuse 500. The support 110 is used to support the heating component 130 and the forming component 120. The support 110 serves as a connecting structure for the fuse thermoforming mechanism. The support 110 has a built-in thermoforming station located between the forming component 120 and the heating component 130, such that the forming component 120 and the heating component 130 are arranged sequentially on the upper and lower sides of the thermoforming station.

[0101] In this solution, the molding assembly 120 includes a pressing module 122; when the fuse 500 is transferred to the thermoforming station, under the action of a driving unit, the pressing module 122 approaches the heating assembly 130, and the pressing module 122 and the heating assembly 130 close together toward the thermoforming station. Specifically, the heating assembly 130 heats the fuse 500 to the transition temperature.

[0102] It should be noted that the deformation principle of fuse 500 is as follows: The shape memory alloy within fuse 500 is composed of different types of structural elements that are uniformly distributed. Although the size and electromagnetic force of these structural elements differ, each accelerates its own valence electron movement. Under certain temperature conditions, these elements are adjacent and in equilibrium. When fuse 500 is subjected to external force, the electromagnetic force within the shape memory alloy is disturbed, causing a slight angular adjustment in the plane of valence electron movement. This results in plastic deformation of fuse 500. During this plastic deformation, the movement of some adjusted valence electrons is not fully extended. When the temperature changes, the rate of valence electron movement changes accordingly. When the temperature returns to the equilibrium and extended state, the extended valence electron movement immediately returns to its previous rate, and the electromagnetic force changes accordingly. This causes the valence electron movement of adjacent structural elements to also adjust accordingly, returning them all to their original extended state. Thus, fuse 500 returns to the shape formed by the thermoforming mechanism of this fuse. The temperature at which the equilibrium and extended state is reached is the transition temperature.

[0103] The pressing module 122 includes at least one pressing head 1222, which is offset from the heating component 130. When the pressing module 122 approaches the heating component 130, the pressing head 1222 presses against the fuse 500 heated by the heating component 130, and bends the heated fuse 500 through the edge of the heating component 130, so that the fuse 500 is formed into a stable state. The stable state is the shape formed when the processing is not lower than the transition temperature. Below the transition temperature, the fuse 500 undergoes plastic deformation under external force, and when the temperature rises to... Upon temperature change, the fuse 500 automatically returns to its stable shape. By placing the forming component 120 and the heating component 130 within the same bracket 110, the pressing module 122 shapes the fuse 500 during the heating process. This allows the heating component 130 to continuously compensate for heat, ensuring that the fuse 500 maintains a temperature at least equal to or higher than the temperature change. This guarantees that the shaped fuse 500 can be completely restored during subsequent use. Furthermore, the fuse thermoforming mechanism automatically processes the fuse 500, improving production efficiency.

[0104] On the other hand, the pressing module 122 also includes a cooling section 1224. After the pressing head 1222 bends the heated fuse 500, the cooling section 1224 cools the bent fuse 500 so that the temperature of the fuse 500 is lower than the transition temperature. The straightening mechanism 200 is located at the downstream end of the forming mechanism 100. After the fuse 500 has completed the bending and forming action, the cooling section 1224 is used to cool the fuse 500. The cooled fuse 500 is then transferred to the straightening mechanism 200.

[0105] Specifically, the straightening mechanism 200 includes a pulling part and a straightening module. The pulling part pulls the fuse 500 through the straightening module to perform a straightening action. The pulling part includes a transmission wheel 240, and the straightening module has a limiting hole. The fuse 500 is moved along a movement direction by the traction of the transmission wheel 240. The straightening module and the transmission wheel 240 are arranged sequentially along the movement direction. The transmission wheel 240 is located downstream of the movement direction. The fuse 500 is transferred by the traction of the transmission wheel 240. Under the traction of the transmission wheel 240, the fuse 500 passes through the straightening module and passes through the limiting hole. The bent fuse 500 is straightened again by the limitation of the limiting hole, thereby completing the entire step of the fuse 500 forming process.

[0106] The cutting mechanism 300 includes a cutting component 310 and a material picking component 320. After the forming process, the fuse 500 is conveyed by the pulling part through the cutting component 310 and finally moved to the material picking component 320. The cutting component 310 cuts the fuse 500, so that the material picking component 320 picks up the cut fuse 500 and sends it to the transfer mechanism 400.

[0107] The cutting assembly 310 includes a driving element 311 and two shearing parts 314. The shearing parts 314 are pivotally connected to a base surface of the cutting assembly 310. The driving element 311 drives the shearing parts 314 to perform closing or opening actions. When the two shearing parts 314 close, the fuse 500 located between the two shearing parts 314 is cut.

[0108] In a preferred embodiment, the pulling part further includes a drive assembly 250. The transmission wheel 240 has two rollers built in it. The rollers are driven by the drive assembly 250. The drive assembly 250 drives one or both rollers. The fuse 500 passes through the gap between the two rollers and is driven by the friction on the rollers.

[0109] The clamping module extends toward the forming mechanism 100. The clamping module includes an upper limit part 210 and a lower limit part 220. The upper limit part 210 and the lower limit part 220 clamp the fuse 500. Matching traction grooves are provided in the upper limit part 210 and the lower limit part 220. When the upper limit part 210 and the lower limit part 220 are arranged opposite to each other, the two traction grooves are spliced ​​together to form a limiting hole.

[0110] The upper limit section 210 extends along a straight line to the thermoforming station. A wire groove 211 is provided in the upper limit section 210 along the extension direction of the upper limit section 210. The wire groove 211 is connected to the traction groove. The cross-section of the wire groove 211 increases along the extension direction. The bent fuse 500 is pulled to the wire groove 211 and is restricted by the continuously shrinking wire groove 211. The degree of deformation of the fuse 500 gradually decreases. Finally, when the fuse 500 moves to the wire groove 211, the fuse 500 is at least approximately straight.

[0111] In this design, the traction groove includes an end, a corner section, and an initial end. The end, corner section, and initial end are connected in sequence to form an L-shaped traction groove. The traction groove guides the fuse 500 and adjusts the direction of movement of the fuse 500. The direction of the transmission wheel 240 pulling the fuse 500 is perpendicular to the direction in which the forming mechanism 100 delivers the fuse 500, thereby reducing the length of the entire processing device. At the same time, the corner section is used to tension the fuse 500, thereby more effectively straightening the fuse 500. The corner section is rounded, with the end close to the transmission wheel 240 and the initial end close to the thermoforming station.

[0112] In this design, there are at least two pressure heads 1222, and the heating assembly 130 includes at least two heating heads 132. The heating heads 132 and pressure heads 1222 are staggered. Under the action of a driving unit, the heating heads 132 and pressure heads 1222 engage with each other. Specifically, there are four pressure heads 1222, which are arranged along a straight installation direction. This installation direction is consistent with the direction of movement of the fuse 500 within the forming assembly 120. There are three heating heads 132, which makes the fuse 500 processed into a wave shape. The surface of the pressure head 1222 that contacts the fuse 500 is the forming surface. Preferably, the forming surface is arc-shaped. During the pressing and forming process, the peak position of the fuse 500 is arc-shaped due to the restriction of the forming surface, which reduces the shear stress of the pressure head 1222 on the fuse 500, thereby avoiding shear damage to the fuse 500 by the pressure head 1222 during bending.

[0113] Furthermore, the cooling section 1224 is provided on both sides of the pressure head 1222. The cooling section 1224 has a plurality of two air outlets. The air outlets are arranged along the installation direction so that the external airflow blows through the air outlet 12241 onto the fuse 500 on the thermoforming station, so that the air outlets can blow evenly onto different parts of the fuse 500, thereby ensuring that the temperature on the fuse 500 drops evenly.

[0114] Furthermore, the pressing module 122 also includes a base 1221, which is mounted on the drive unit or the bracket 110. The pressing head 1222 is slidably connected to the base 1221, and a counterweight 1226 is pressed on the pressing head 1222. Under the drive of the drive unit, the weight of the pressing head 1222 and the counterweight 1226 presses onto the fuse 500. When the pressing head 1222 contacts the fuse 500, the base 1221 slides relative to the pressing head 1222, so that the counterweight 1226, which originally applied force to the base 1221, presses onto the fuse 500 with its own weight, thereby forming the shape of the fuse 500 by the weight of the pressing head 1222 and the counterweight 1226.

[0115] Specifically, the top of the pressure head 1222 extends outward to form a load-bearing part, and a positioning post is vertically provided on the upper surface of the load-bearing part. The counterweight 1226 is placed on the load-bearing part and is sleeved on the positioning post to limit the offset of the counterweight 1226.

[0116] In one embodiment, the load-bearing portion on the pressure head 1222 is in contact with all the pressure heads 1222, thereby applying pressure to the pressure head 1222 through the same counterweight 1226, so that the counterweight 1226 is distributed to different positions of the fuse 500 via the multiple pressure heads 1222.

[0117] However, in the above embodiments, the pressure applied to each pressure head 1222 is difficult to control, which can easily lead to insufficient pressure in some parts of the fuse 500 and the shape of the final formed part cannot meet the processing requirements. Therefore, preferably, each pressure head 1222 and its corresponding counterweight 1226 constitute a pressing molding module. The weights of any two pressing molding modules are different, so that the pressure applied to each pressure head 1222 can be adjusted independently, thereby facilitating precise control of the pressure of each pressure head 1222 on the pressing module 122.

[0118] In a preferred embodiment, the bracket 110 includes a first connecting portion 111, a driving portion is mounted on the first connecting portion 111, and the driving portion drives the molding assembly 120 and / or the heating assembly 130, such that the molding assembly 120 moves relative to the heating assembly 130.

[0119] The first connecting part 111 includes at least a vertically arranged guide post 1112, which is slidably connected to a sliding plate 112. The driving part drives the sliding plate 112 to slide along the axial direction of the guide post 1112. The forming component 120 or the heating component 130 is mounted on the sliding plate 112.

[0120] In this embodiment, specifically, the driving unit includes a first driving unit 121 and a second driving unit 131. The first driving unit 121 is used to drive the molding component 120 so that the molding component 120 presses itself onto the fuse 500 from top to bottom. The second driving unit 131 is used to drive the heating component 130. The molding component 120 and the heating component 130 move closer to each other through the driving of the first driving unit 121 and the second driving unit 131 and finally move to the thermoforming station to process the fuse 500 placed on it. The base 1221 and the sliding plate 112 are connected by a column, so that a gap is reserved between the base 1221 and the sliding plate 112 to support the counterweight 1226.

[0121] Furthermore, the bracket 110 also includes a second connecting part 113, which is mounted on the first connecting part 111; the first connecting part 111 also includes a base plate 1111, on which the guide post 1112 is mounted, and the second connecting part 113 is also supported on the base plate 1111.

[0122] On the other hand, a heat preservation box 140 is installed on the second connecting part 113. The heat preservation box 140 is located on the thermoforming station. The second driving part 131 is used to drive the heating component 130 to extend into the heat preservation box 140. The fuse 500 is sent into the heat preservation box 140 and heated by the heating component 130. The heat preservation box 140 includes an outer cover with a cylindrical structure. The outer cover covers the periphery of the heating component 130. Insulation blocks are attached to the inner wall of the outer cover, so that the temperature inside the heat preservation box 140 is always relatively high, thereby preheating the fuse 500 transferred to the heat preservation box 140, so that the fuse 500 can reach the transition temperature more quickly, thereby increasing the processing speed and improving efficiency.

[0123] Furthermore, side ears are installed on the two outer sides of the insulation box 140, and the pressing module 122 also includes a limiting part 1223. The limiting part 1223 is set corresponding to the side ears, so that when the pressing module 122 is close to the heating component 130, the limiting part 1223 and the side ears clamp the fuse 500. Specifically, the limiting part 1223 is provided with a first limiting groove 12231, and the side ears are provided with a second limiting groove 1411. When the limiting part 1223 is close to the side ears, the first limiting groove 12231 and the second limiting groove 1411 are combined to form the cross-sectional shape of the fuse 500, and the position of the fuse 500 is restricted by the first limiting groove 12231 and the second limiting groove 1411.

[0124] On the other hand, the limiting part 1223 is provided with a vertically arranged sliding groove 12232. The base 1221 is connected to the sliding groove 12232 by a slider on the base 1221 so that it is slidably connected to the limiting part 1223. After the limiting part 1223 contacts the side ear, the base 1221 can continue to move downward, thereby increasing the downward stroke of the pressure head 1222. Specifically, the downward stroke of the base 1221 is limited by the length of the sliding groove 12232.

[0125] An elastic unit 1227 is installed on the limiting part 1223 on the base 1221 near the clamping module. The elastic unit 1227 is connected to a base surface of the limiting part 1223 and the base 1221. The limiting part 1223 and the corresponding side ear clamp the fuse 500 through the elastic deformation of the elastic unit 1227.

[0126] During the pressing step performed by the molding mechanism 100, the fuse 500 is bent, which increases the overall length of the fuse 500 entering the thermoforming station. The original length of the fuse 500 in the thermoforming station is insufficient to meet the length requirements of the bent fuse 500. Therefore, it is necessary to compensate the fuse 500 from the outside into the thermoforming station. However, the fuse 500 entering the straightening module has already been processed. If it is compensated into the thermoforming station, it will cause an error in the fuse 500 of the previous heat processing. Therefore, through the elastic deformation of the elastic unit 1227, the limiting part 1223 on the base 1221 near the straightening module clamps the fuse 500 with the side ear to prevent the fuse 500 from shifting at that point. Secondly, during the process of straightening the fuse 500, by clamping both ends of the fuse 500 and applying tension to one end, the bent fuse 500 can be straightened more effectively.

[0127] In a preferred embodiment, the heating head 132 includes a contact and a heating element. The heating element is sleeved inside the contact. The contact contacts the fuse 500 and bends the fuse 500 through the edges of the contact. The straightening mechanism 200 also includes an adjusting assembly 250. Specifically, the lower limit part 220 is mounted on a base of the straightening mechanism 200, and the upper limit part 210 is slidably connected to the base. The adjusting assembly 250 adjusts the gap between the upper limit part 210 and the lower limit part 220 by driving the upper limit part 210. Although the cooling part 1224 cools the fuse 500, the temperature of the fuse 500 is still higher than the room temperature. If the fuse 500 moves in the closed-loop limiting hole, heat will accumulate in the limiting hole. Therefore, setting the upper limit part 210 and the lower limit part 220 with a gap can effectively dissipate heat. Preferably, the adjusting assembly includes a bolt, and the upper limit part 210 is moved by rotating the bolt.

[0128] In a preferred embodiment, the driving element 311 drives the two shearing parts 314 to rotate towards each other via a transmission part 312. Specifically, the transmission part 312 includes two connecting rods 3121, one end of which is connected to the corresponding shearing part 314, and the other end of the connecting rod 3121 is equipped with a guide wheel 3122. A limiting part 314 is installed on the power output end of the driving element 312 of the driving element 311. The limiting part 314 has a slot 3131 for receiving the guide wheel 3122. When the driving element 312 drives the limiting part 314 to move along a straight line, the guide wheel 3122 is in the slot 3131, thereby driving the connecting rod 3121 to rotate around the pivot point of the shearing part 314 connected to the connecting rod 3121.

[0129] The cutting assembly 310 also includes a receiving groove 315, which is located between the shearing part 314 and the pulling part to support the fuse 500. Although not shown in the figure, it should be understood that if it is desired that the fuse 500 can pass smoothly through the shearing part 314 to the picking assembly 320, the receiving groove 315 may also be equipped with a transmission part, such as the structure of a pulling part, to maintain the power for the continued transmission of the fuse 500 and prevent the fuse 500 from depositing in the shearing part 314 and the pulling part.

[0130] It should be noted that the driving element 311 is not limited to driving the two shearing parts 314 to move towards each other. Driving one shearing part 314 to move can also achieve the function of cutting the fuse 500 and should also be regarded as a specific solution of this embodiment. On the other hand, the transmission part 312 is not limited to the connecting rod 3121, but can also be driven by common transmission mechanisms such as lead screws. At the same time, the driving element 311 can also drive the two shearing parts 314 to move towards each other through a double-shaft extension motor or cylinder, which should also be regarded as a specific solution of this embodiment.

[0131] Furthermore, the material handling assembly 320 includes a material handling section 323 and a drive unit. The drive unit drives the material handling assembly 320 to move between the cutting assembly 310 and the transfer mechanism 400. The drive section 323 includes two clamping blocks that are hinged together in a cross structure. The material handling section 323 also includes a push rod 3233. Under the action of external force, the push rod 3233 pushes one of the clamping blocks, causing the two clamping blocks to close together to hold the fuse 500.

[0132] Furthermore, the drive unit includes a rotary cylinder 321, and a cantilever 322 is fixedly mounted on the rotating end 3211 of the rotary cylinder 321. The material taking part 323 is mounted on the cantilever 322, so that the rotary cylinder 321 drives the material taking part 323 to reciprocate between the cutting assembly 310 and the transfer mechanism 400. Specifically, when the material taking part 323 is located on the side close to the cutting assembly 310, the material taking assembly 320 is located in the first position, and when the material taking part 323 is located at the transfer mechanism 400, the material taking assembly 320 is located in the second position.

[0133] It should be noted that the drive unit is not limited to the rotary cylinder 321. Common linear motors and other drive components can also achieve the purpose of driving the material handling part 323 between the cutting assembly 310 and the transfer mechanism 400, and should also be regarded as specific solutions of this embodiment.

[0134] In this solution, the material handling assembly 320 also includes a base for supporting the rotary cylinder 321. The base is equipped with a stop 324, and a buffer block 325 is installed on the cantilever 322. The stop 324 is located on the rotation path of the buffer block 325. The stop 324 blocks the buffer block 325 to limit the rotation angle of the cantilever 322.

[0135] In a preferred embodiment, the transfer mechanism 400 includes a support 410, a clamping part, a pushing part 460, and a driver 420; the number of clamping parts is two, and the two clamping parts are pivotally connected to the base surface of the support 410, and the fuse 500 is clamped by the two clamping parts closing; the pushing part 460 is used to drive the two clamping parts to open; the driver 420 is used to drive the pushing part 460 to reciprocate in the vertical direction, and the pushing part 460 is driven by the driver 420 to drive the clamping parts to open, so that the clamping parts can move to both sides of the fuse 500;

[0136] Specifically, the two clamping parts are a first clamping part 430 and a second clamping part 440. The driver 420 drives the push part 460 to rotate the first clamping part 430. On the other hand, a second gripper 441 is installed at one end of the second clamping part 440, and a protrusion is provided on the side wall of the other end of the second clamping part 440.

[0137] The support 410 is also equipped with a stop 450, which is used to limit the rotation distance of the second clamping part 440. When the second clamping part 440 and the stop 450 abut against each other, the second clamping part 440 is in a balanced state. When the second clamping part 440 is in a balanced state, the protrusion of the second clamping part 440 is located on the moving path of the pushing part 460.

[0138] The support 410 is provided with a guide groove 411. Specifically, the guide groove 411 extends on the support 410 along a vertical straight line. The push part 460 is restricted in its movement path by the guide groove 411, causing it to move back and forth between the beginning and the end. The beginning is above the end. Specifically, the beginning is the end of the guide groove 411 that is at the highest point in the vertical direction, and the end is the end of the guide groove 411 that is at the lowest point in the vertical direction.

[0139] Furthermore, the pushing part 460 includes a roller 462, and the first clamping part 430 includes a guide surface 4321. The roller 462 is attached to the guide surface 4321 and is driven by the driver 420, causing the roller 462 to roll on the guide surface 4321 to drive the first clamping part 430 to rotate. The guide surface 4321 is inclined relative to the vertical line of the first clamping part 430, so that when the pushing part 460 rolls on the guide surface 4321, it forces the first clamping part 430 to rotate about the axis of its pivot shaft. On the other hand, the center of gravity of the first clamping part 430 is always located on the same outer side of its pivot shaft, so that the gravity of the first clamping part 430 is always pressed against the pushing part 460, so as to ensure that when the driver 420 drives the pushing part 460 to move, the pushing part 460 always drives the first clamping part 430. More specifically, the guide groove 411 is located on the outer side of the pivot shaft of the first clamping part 430, and the center of gravity of the first clamping part 430 and the guide groove 411 are on the same side of the pivot shaft of the first clamping part 430.

[0140] When the pushing part 460 is at the beginning, the first clamping part 430 approaches the stop part 450. The stop part 450 restricts the rotation angle of the second clamping part 440 and also restricts the angle at which the driver 420 drives the first clamping part 430 to rotate. When the pushing part 460 is at the end, the pushing part 460 abuts against the protrusion, causing the second clamping part 440 to fall out of balance and tilt towards the first clamping part 430 to close the two clamping parts.

[0141] Specifically, the first clamping part 430 and the second clamping part 440 are pivotally connected by a pivot shaft 412, and the pivot shaft 412 is mounted on the support 410, so that the first clamping part 430 and the second clamping part 440 rotate around the same axis; the first clamping part 430 and the stop part 450 are arranged on both sides of the axis of the pivot shaft 412, and the plumb line of the first clamping part 430 is always located on the other side of the pivot shaft 412 opposite to the stop part 450.

[0142] The working steps of the transfer mechanism 400 include: when the pushing part 460 is at the beginning, the second clamping part 440 and the first clamping part 430 close together at a first position close to the stop part 450; when the pushing part 460 is at the end, the second clamping part 440 and the first clamping part 430 close together at a second position away from the stop part 450.

[0143] When the pushing part 460 moves from the end to the beginning, the second clamping part 440 closes onto the first clamping part 430. Furthermore, as the first clamping part 430 rotates forward, the second clamping part 440 and the first clamping part 430 clamp the fuse 500 close to the stop part 450, that is, the second clamping part 440 and the first clamping part 430 move from the second position to the first position.

[0144] When the pushing part 460 moves from the beginning to the end, the first clamping part 430 rotates in the opposite direction, causing the first clamping part 430 to move away from the second clamping part 440. Specifically, the pushing part 460 moves from the beginning to the end and the pushing part 460 does not touch the protrusion. The first clamping part 430 moves relative to the second clamping part 440. When the pushing part 460 moves from the beginning to the end, the first clamping part 430 moves from the first position to the second position. When the pushing part 460 moves to the end, the protrusion is pushed by the pushing part 460, causing the second clamping part 440 to rotate in the opposite direction under its own weight and close towards the first clamping part 430 at the second position to clamp the fuse 500.

[0145] After the fuse 500 is clamped by the clamping and transfer mechanism, it moves between the first position and the second position. The clamping and transfer mechanism uses a driver 420 to realize the clamping and transfer actions simultaneously, which reduces the use of driving components and reduces manufacturing costs. At the same time, the clamping and transfer actions are realized through a rigid structure, which simplifies the control logic and avoids operational errors.

[0146] Specifically, when the second clamping part 440 is in a balanced state, the plumb line of the second clamping part 440 is at least not on the same side as the plumb line of the first clamping part 430 on the axis of the pivot shaft 412. When the pushing part 460 moves to the terminal pushing protrusion, it forces the second clamping part 440 to rotate so that the plumb line of the second clamping part 440 and the plumb line of the first clamping part 430 are on the same side of the axis of the pivot shaft 412. In a preferred embodiment, when the second clamping part 440 is in a balanced state, the plumb line of the second clamping part 440 is located at the rotation center of the pivot shaft 412.

[0147] In another preferred embodiment, when the second clamping part 440 is in a balanced state, the plumb line of the second clamping part 440 is located between the rotation center of the pivot shaft 412 and the stop part 450, and the plumb line of the second clamping part 440 approximately falls on the rotation center of the pivot shaft 412.

[0148] The clamping part includes a jaw and an extension block. The jaw is fixedly connected to one end of the extension block. The second clamping part 440 includes a second jaw 441 and a second extension block 442. The second extension block 442 includes at least a clamping beginning end 4421, an extension rod 4422, and a protruding end 4423. The clamping beginning end 4421, the extension rod 4422, and the protruding end 4423 are integrally joined together to form the second extension block 442. The protruding block is formed at the protruding end 4423. The second jaw 441 is mounted on the clamping beginning end 4421 and connected to the second extension block 442 to form the second clamping part 440. 0. The pivot shaft 412 is connected to the extension rod 4422. Specifically, the weight of the second gripper 441 is much greater than that of the second extension block 442, so that the center of gravity of the second clamping part 440 is close to the second gripper 441. The first clamping part 430 includes the first gripper 431 and the first extension block 432. The first gripper 431 is fixedly installed on one end of the first extension block 432. The guide surface 4321 is provided on the other end of the first extension block 432. The first gripper 431 is provided with a relief groove so that the clamping part can be flipped from the relief groove into the first gripper 431, so that the fuse 500 is clamped on the first gripper 431.

[0149] In a preferred embodiment, a mounting base 422 is installed on the power output end of the driver 420, and a pushing part 460 is supported on the mounting base 422. The pushing part 460 also includes a mounting shaft 461, on which a roller 462 is sleeved. The mounting shaft 461 is inserted into the mounting base 422 and extends into the guide groove 411, so that the mounting shaft 461 slides along the direction of the guide groove 411. Mounting blocks 463 are installed at both ends of the mounting shaft 461. The two mounting blocks 463 are located on both sides of the support 410, so that the mounting blocks 463 fit against the outside of the guide groove 411.

[0150] The mounting base 422 has a U-shaped structure, and the power output end is connected to the bottom surface of the mounting base 422. The side wall of the mounting base 422 is provided with a shaft hole corresponding to the push part 460, and the bottom surface of the mounting base 422 is provided with a relief groove so that the first clamping part 430 and the second clamping part 440 pass through the relief groove and abut against the roller 462.

[0151] The first gripper 431 and the second gripper 441 include a first gripping body 4311 and a second gripping body 4411, respectively. The first gripping body 4311 and the second gripping body 4411 are respectively provided with a first slot and a second slot. The gripper is provided with an arc-shaped slot. The first slot and the second slot are semi-circular. When the two gripping parts are closed, the first slot and the second slot cooperate with each other to form a gripping position for clamping the fuse.

[0152] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details.

Claims

1. An automatic forming device for fuses, characterized in that, include: A forming mechanism (100) is used to perform a hot bending process on the fuse (500); A straightening mechanism (200) for straightening a bent fuse (500) is located downstream of the forming mechanism (100); A cutting mechanism (300) for cutting the straightened fuse (500) into segments; and A transfer mechanism (400) is used to remove the cut fuse (500); The forming mechanism (100) includes a forming component (120) and a heating component (130). While the heating component (130) heats the fuse (500) to the transition temperature, the forming component (120) presses the fuse (500) from top to bottom, causing the fuse (500) to bend. The straightening mechanism (200) includes a pulling part and a clamping module. The pulling part pulls the fuse (500) so that the bent fuse (500) passes through the clamping module to straighten the bent fuse (500). The cutting mechanism (300) includes a cutting component (310) and a material picking component (320). The fuse (500) is conveyed by the pulling part through the cutting component (310) and finally moves to the material picking component (320). The cutting component (310) cuts the fuse (500) so that the material picking component (320) picks up the cut fuse (500) and sends it to the transfer mechanism (400).

2. The automatic molding equipment as described in claim 1, characterized in that, The cutting assembly (310) includes a driving element (311) and two shearing parts (314). The shearing parts (314) are pivotally connected to a base surface of the cutting assembly (310). The driving element (311) drives the shearing parts (314) to perform closing or opening actions. When the two shearing parts (314) close, the fuse (500) located between the two shearing parts (314) is cut.

3. The automatic molding equipment as described in claim 2, characterized in that, The driving element (311) drives the two shearing parts (314) to rotate in opposite directions via a transmission part (312).

4. The automatic molding equipment as described in claim 3, characterized in that, The transmission part (312) includes two connecting rods (3121), one end of which is connected to a corresponding shearing part (314), and a guide wheel (3122) is installed on the other end of the connecting rod (3121). A limiting part (313) is installed on the power output end of the transmission part (312) of the drive element (311). The limiting part (313) has a slot (3131) for receiving the guide wheel (3122). When the transmission part (312) of the drive element (311) drives the limiting part (313) to move along a straight line, the guide wheel (3122) is in the slot (3131), thereby driving the connecting rod (3121) to rotate around the pivot point of the shearing part (314) connected to the connecting rod (3121).

5. The automatic molding equipment as described in claim 1, characterized in that, The material handling assembly (320) includes a material handling part (323) and a driving unit. The driving unit drives the material handling assembly (320) to move between the cutting assembly (310) and the transfer mechanism (400). The material handling part (323) includes two clamping blocks, which are hinged together in a cross structure. The material handling part (323) also includes a push rod (3233). The push rod (3233) pushes one of the clamping blocks under the action of external force, so that the two clamping blocks close together to clamp the fuse (500).

6. The automatic molding equipment as described in claim 5, characterized in that, The drive unit includes a rotary cylinder (321), and a cantilever (322) is fixedly installed on the rotating end (3211) of the rotary cylinder (321). The material taking part (323) is installed on the cantilever (322), so that the rotary cylinder (321) drives the material taking part (323) to reciprocate between the cutting assembly (310) and the transfer mechanism (400).

7. The automatic molding equipment as described in claim 6, characterized in that, The material handling assembly (320) also includes a base for receiving the rotary cylinder (321). The base is equipped with a stop (324), and a buffer block (325) is installed on the cantilever (322). The stop (324) is located on the rotation path of the buffer block (325) and blocks the buffer block (325) to limit the rotation angle of the cantilever (322).

8. The automatic molding equipment as described in any one of claims 1-7, characterized in that, The clamping module extends toward the forming mechanism (100), and the clamping module includes an upper limit part (210) and a lower limit part (220), the upper limit part (210) and the lower limit part (220) clamping the fuse (500). The upper limit part (210) and the lower limit part (220) are provided with matching traction grooves. The two traction grooves are spliced ​​together to form a limiting hole. When the bent fuse (500) passes through the limiting hole, it is straightened again by the limitation of the limiting hole.

9. The automatic molding equipment as described in claim 8, characterized in that, The pulling part includes a transmission wheel (240) and a drive assembly (250). The transmission wheel (240) has two rollers built in it. The rollers are driven by the drive assembly (250) so that the fuse (500) passes through the gap between the two rollers.

10. The automatic molding equipment as described in any one of claims 1-7, characterized in that, The transfer mechanism (400) includes: Support (410); Two clamping parts pivotally connected to the base surface of the support (410) are used to clamp the fuse; The pusher (460) is used to open the two clamping parts; and A driver (420) is used to drive the pusher (460) to reciprocate in the vertical direction; The clamping part is a first clamping part (430) and a second clamping part (440). A second gripper (441) is installed at one end of the second clamping part (440), and a protrusion is provided on the side wall of the other end. The driver (420) drives the pushing part (460) to drive the first clamping part (430) to rotate. The support (410) is also equipped with a stop (450) to limit the rotation distance of the second clamping part (440). When the second clamping part (440) abuts against the stop (450), the second clamping part (440) is in a balanced state. When the second clamping part (440) is in a balanced state, the protrusion of the second clamping part (440) is located on the moving path of the pushing part (460). The support (410) is provided with a guide groove (411), and the push part (460) is restricted in its movement path by the guide groove (411) so that it moves back and forth between the beginning and the end, and the beginning is above the end. When the pushing part (460) is at the beginning, the first clamping part (430) approaches the stop part (450); and when the pushing part (460) is at the end, the pushing part (460) abuts against the protrusion, causing the second clamping part (440) to fall out of balance and tilt towards the first clamping part (430) to close the two clamping parts.

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