A continuous punching device for cashbox processing

Abstract

The present application relates to stamping equipment technical field, specifically to a kind of continuous stamping equipment for cashbox processing, comprising: upper mounting plate and lower mounting plate.By the cooperation of upper mounting plate downward movement and lower mounting plate, outer die assembly, inner die assembly and top block can be bent to workpiece.By the first forming assembly and second forming assembly and workpiece rolling contact, so that the first forming surface and second forming surface are all from inclined state to flat state, while increasing the size of processing surface to bend workpiece;After bending is completed, by the first forming assembly and second forming assembly and workpiece rolling contact, so that the first forming surface and second forming surface are from flat state to inclined state, while reducing the size of processing surface to be separated from workpiece.Therefore, its relative motion with workpiece is changed from sliding contact to rolling contact, thereby reducing the wear of workpiece.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of stamping equipment, in particular to a continuous stamping equipment for cash box processing. BACKGROUND

[0002] As a common equipment in the field of business and retail, the cash box is usually made of metal plate through stamping and bending process. The manufacturing quality of such products is directly related to the sealing, aesthetics and service life of the products, so higher requirements are put forward for the surface protection during the stamping process.

[0003] Stamping is a forming process that uses a press and a die to apply external force to materials such as sheet metal and pipe to make them deform and obtain the desired shape and size of the workpiece. However, in the prior art, when using a stamping die to process the cover and door of a cash box, high-pressure relative sliding inevitably occurs between the die and the workpiece. Especially in the bending process, the workpiece surface is easily scratched, which further causes defects such as forming defects and roughness on the inner and outer surfaces of the bent angle in the subsequent forming process, and also causes certain wear to the die. SUMMARY

[0004] Therefore, it is necessary to provide a continuous stamping equipment for cash box processing to solve the problem of workpiece surface wear caused by relative sliding between the die and the workpiece during the processing of the existing stamping equipment.

[0005] The above-mentioned purpose is achieved by the following technical solutions:

[0006] A continuous stamping equipment for cash box processing, comprising:

[0007] an upper mounting plate, a top block is fixedly arranged on the upper mounting plate, and an inner die assembly is arranged on the top block;

[0008] a lower mounting plate, an outer die assembly is arranged on the lower mounting plate; when the upper mounting plate moves downward and cooperates with the lower mounting plate, the outer die assembly, the inner die assembly and the top block bend the workpiece;

[0009] the inner die assembly comprises a plurality of first forming assemblies and a plurality of second forming assemblies, the plurality of first forming assemblies and the plurality of second forming assemblies are arranged alternately in a circumferential direction around the central axis of the top block; the first forming assembly comprises a first forming surface, and the second forming assembly comprises a second forming surface; the first forming surface, the second forming surface and the bottom surface of the top block jointly form a processing surface in contact with the surface of the workpiece;

[0010] During the bending process of the workpiece, both the first forming component and the second forming component roll into contact with the workpiece, causing both the first forming surface and the second forming surface to change from an inclined state to a flat state, while increasing the size of the processed surface; after the bending is completed, both the first forming component and the second forming component roll out of contact with the workpiece, causing the first forming surface and the second forming surface to return from a flat state to an inclined state, while decreasing the size of the processed surface.

[0011] Furthermore, the first forming component includes a first pressing block and a first flattening unit. The first pressing block has a first sliding groove. A first sliding strip is fixedly provided on the top block. The first sliding strip is inclined toward the central axis of the first pressing block and is slidably connected to the first sliding groove. The first flattening unit is used to reduce frictional wear on the workpiece surface during bending.

[0012] Furthermore, the second forming component includes a second pressing block and a second flattening unit. The second pressing block has a second sliding groove. A second sliding strip is fixedly provided on the top block. The second sliding strip is inclined toward the central axis of the second pressing block. The inclination of the second sliding strip is greater than that of the first sliding strip. The second sliding strip is slidably connected to the second sliding groove. The second flattening unit is used to reduce frictional wear on the workpiece surface during bending.

[0013] Furthermore, the first flattening unit includes a first hinge plate, a first spring, and a ball bearing; the first forming surface is the surface of the first hinge plate that contacts the workpiece, the first hinge plate is hinged to the first pressure block, and the first hinge plate and the first pressure block can rotate relative to each other; one end of the first spring is fixedly connected to the first pressure block, and the other end is fixedly connected to the first hinge plate, and the elastic force of the first spring always causes the first hinge plate to rotate away from the first pressure block; the ball bearing is rotatably connected to the first hinge plate, and during the bending process, the ball bearing can roll along the surface of the workpiece until the first forming surface is in close contact with the surface of the workpiece.

[0014] Furthermore, the second flattening unit includes a second hinge plate, a second spring, and a roller; the second forming surface is the surface where the second hinge plate contacts the workpiece, the second hinge plate is hinged to the second pressure block, and the second hinge plate and the second pressure block can rotate relative to each other; one end of the second spring is fixedly connected to the second pressure block, and the other end is fixedly connected to the second hinge plate, and the elastic force of the second spring always causes the second hinge plate to rotate away from the second pressure block; the roller is rotatably connected to the second hinge plate, and the roller can rotate around its own axis. During the bending process, the roller can roll along the surface of the workpiece until the second forming surface is in close contact with the surface of the workpiece.

[0015] Furthermore, the outer mold assembly includes multiple sliding plates, multiple baffles, and a guide unit. The multiple sliding plates are circumferentially arranged around the central axis of the lower mounting plate, and the multiple baffles are circumferentially arranged around the central axis of the lower mounting plate. The sliding plates are slidably connected to the lower mounting plate, and the baffles are fixedly connected to the lower mounting plate. The baffles are used to limit the sliding direction of the sliding plates. The guide unit can drive the sliding plates to slide away from the baffles to perform secondary bending on the workpiece.

[0016] Furthermore, the guiding unit also includes a guide strip, which is slidably connected to the upper mounting plate; the guide strip has a first inclined surface, and the sliding plate has a second inclined surface. When the upper mounting plate moves downward and cooperates with the lower mounting plate, the first inclined surface cooperates with the second inclined surface to drive the sliding plate to slide away from the baffle.

[0017] Furthermore, each of the sliding plates is provided with a rotatable roller, which can rotate about its own axis; when the sliding plate performs a secondary bending of the workpiece, the roller can roll along the surface of the workpiece to reduce the wear of the workpiece by the sliding plate.

[0018] Furthermore, a rotatable rotating rod is provided inside the top block, and the rotating rod can rotate around its own axis; a limit block is provided on the rotating rod, and the limit block is threadedly connected to the rotating rod; an elastic locking block is slidably provided inside the limit block, and a limit groove is provided on the first pressing block, and the elastic locking block is slidably connected to the limit groove, and the elastic locking block is used to limit the sliding displacement of the first pressing block.

[0019] Furthermore, both the first molding surface and the second molding surface are provided with receiving grooves. When the balls and the rollers roll along the surface of the workpiece, the receiving grooves can collect impurities from the surface of the workpiece.

[0020] The beneficial effects of this invention are:

[0021] This invention provides a continuous stamping device for processing cash registers, comprising an upper mounting plate and a lower mounting plate. A top block is mounted on the upper mounting plate, and an inner mold assembly is mounted on the top block; an outer mold assembly is mounted on the lower mounting plate. When the upper mounting plate moves downwards to engage with the lower mounting plate, the outer mold assembly, the inner mold assembly, and the top block bend the workpiece. The inner mold assembly includes a first forming component and a second forming component. The first forming component includes a first forming surface, and the second forming component includes a second forming surface. The first forming surface, the second forming surface, and the bottom surface of the top block together form a processing surface that contacts the workpiece surface. Through rolling contact between the first and second forming components and the workpiece, both the first and second forming surfaces change from an inclined state to a flattened state, simultaneously increasing the size of the processing surface to bend the workpiece. After bending, the first and second forming components roll away from the workpiece, causing the first and second forming surfaces to return from a flattened state to an inclined state, simultaneously decreasing the size of the processing surface to detach from the workpiece. Therefore, the relative motion between the first and second forming components and the workpiece changes from sliding contact to rolling contact, thereby reducing wear on the workpiece. Attached Figure Description

[0022] Figure 1 This is an isometric view of a continuous stamping equipment for processing cash registers according to an embodiment of the present invention;

[0023] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle;

[0024] Figure 3 for Figure 1 A magnified view of a portion of point B in the middle;

[0025] Figure 4 for Figure 1 The front view;

[0026] Figure 5 for Figure 4 A sectional view along section AA;

[0027] Figure 6 for Figure 5 A magnified view of a portion of point C in the middle;

[0028] Figure 7 for Figure 5 A magnified view of a portion of point D in the middle;

[0029] Figure 8 for Figure 1 Exploded view;

[0030] Figure 9 for Figure 8 A magnified view of a portion of point E in the middle;

[0031] Figure 10 forFigure 1 A schematic diagram of the structure when the first and second flattening units are closed;

[0032] Figure 11 for Figure 10 A magnified view of a portion of point F in the middle;

[0033] Figure 12 for Figure 10 A schematic diagram of the structure when the first and second hinge plates are tilted;

[0034] Figure 13 for Figure 8 A magnified view of a portion of point G in the middle.

[0035] in:

[0036] 100. Upper mounting plate; 110. Top block; 111. First slide bar; 112. Second slide bar; 120. Guide bar; 121. First inclined surface;

[0037] 210. First molding assembly; 211. First pressure block; 212. First slide groove; 213. First hinge plate; 214. Ball bearing; 215. First spring; 220. Second molding assembly; 221. Second pressure block; 222. Second slide groove; 223. Second hinge plate; 224. Roller; 231. Knob; 232. Rotating rod; 233. Limiting block; 234. Elastic locking block; 235. Limiting groove;

[0038] 300. Lower mounting plate; 301. Baffle; 302. Sliding plate; 303. Second inclined surface; 304. Roller; 310. Placement surface; 311. Placement plate; 312. Fixing block; 313. Telescopic rod; 314. Base; 320. Hydraulic cylinder; 321. Receiving groove; 322. Rolling rod; 323. First channel; 324. Second channel; 325. Third channel; 326. Fourth channel. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0040] The component designations used in this document, such as "first" and "second," are merely for distinguishing the described objects and do not have any sequential or technical meaning. The terms "connection" and "linkage" used in this invention, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0041] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0042] The following reference Figures 1 to 13 This invention describes a continuous stamping equipment for processing cash registers, as provided in an embodiment of the present invention.

[0043] The continuous stamping equipment for cash register box processing includes an upper mounting plate 100 and a lower mounting plate 300, which are vertically opposite each other, forming the basic support frame of the equipment. A top block 110 is fixedly mounted on the upper mounting plate 100, and an inner mold assembly is mounted on the top block 110. The top block 110 and the inner mold assembly are used for the first bending operation on the workpiece. An outer mold assembly is mounted on the lower mounting plate 300, and the outer mold assembly is used for the second bending operation on the workpiece. The inner mold assembly includes multiple first forming components 210 and multiple second forming components 220, which are arranged alternately circumferentially around the central axis of the top block 110. Each first forming component 210 includes a first forming surface, and each second forming component 220 includes a second forming surface. The first forming surface, the second forming surface, and the bottom surface of the top block 110 together form the processing surface that contacts the workpiece surface.

[0044] The continuous stamping equipment for cash register processing also includes a hydraulic cylinder, which drives the upper mounting plate 100 to move vertically toward the lower mounting plate 300; during this process, the first forming component 210 and the second forming component 220 can adjust their relative positions with the top block 110 to change the overall size of the processed surface.

[0045] Furthermore, a base 314 is fixedly mounted on the lower mounting plate 300, and a placement surface 310 for placing workpieces is formed on the base 314. A slidable placement plate 311 is provided in the placement surface 310, and a telescopic rod 313 is fixedly mounted on the placement plate 311. The placement plate 311 can slide relative to the base 314 in the vertical direction through the extension and retraction of the telescopic rod 313.

[0046] Specifically, the workpiece is first placed on the placement surface 310, and the placement plate 311 is then placed over it. The hydraulic cylinder applies a downward driving force, i.e. Figure 12 The hydraulic cylinder drives the upper mounting plate 100 to move closer to the lower mounting plate 300 in the vertical direction, causing the top block 110, the first molding component 210, and the second molding component 220 to move synchronously. During this process, both the first molding component 210 and the second molding component 220 are close to the bottom of the top block 110, and the first molding surface, the second molding surface, and the bottom surface of the top block 110 are not on the same plane. Both the first molding surface and the second molding surface are inclined towards the placement plate 311. At this time, the distance between the first molding component 210 and the second molding component 220 is small, so the overall size of the processed surface is small. When the first molding component 210 and the second molding component 220 abut against the workpiece, the hydraulic cylinder continues to apply driving force. The first molding component 210 rolls against the workpiece and changes its relative position with the top block 110, so that the first molding surface gradually changes from an inclined state to a flat state; at the same time, the second molding component 220 rolls against the workpiece and changes its relative position with the top block 110, so that the second molding surface gradually changes from an inclined state to a flat state. At this point, the distance between the first forming component 210 and the second forming component 220 gradually increases, and the size of the processed surface also increases accordingly. When the first forming surface, the second forming surface, and the bottom surface of the top block 110 are on the same plane, the first forming component 210 and the second forming component 220 no longer slide relative to the top block 110, and the overall size of the processed surface reaches its maximum size. At this point, the processed surface and the placement surface 310 clamp the workpiece.

[0047] Then the hydraulic cylinder continues to apply downward driving force, pressing the workpiece and the placement plate 311 to slide downwards, i.e. Figure 5In the vertical direction, the telescopic rod 313 is compressed, and the portion of the workpiece located on the placement surface 310 begins to bend upwards, thus achieving the first bend of the workpiece. Subsequently, the outer mold assembly contacts the end of the workpiece that has completed the first upward bend and applies further guiding pressure, pushing the end to continue folding inwards towards the workpiece, achieving a second inward bend, thereby completing the second bend of the workpiece. After the second bend is completed, the hydraulic cylinder reverses its drive, causing the upper mounting plate 100 to slide upwards away from the lower mounting plate 300, thereby causing the first forming assembly 210, the second forming assembly 220, and the placement plate 311 to gradually return to their original positions, and the first forming surface and the second forming surface to gradually return to their inclined state.

[0048] In one embodiment, the first forming assembly 210 includes a first pressing block 211 and a first flattening unit. The first pressing block 211 has a first groove 212; a first slide bar 111 is fixedly disposed on the top block 110, the first slide bar 111 being inclined towards the central axis of the first pressing block 211, and slidably connected to the first groove 212. The first flattening unit is used to reduce frictional wear on the workpiece surface during bending.

[0049] Furthermore, the first flattening unit includes a first hinge plate 213, a first spring 215, and a ball bearing 214. The first forming surface is the surface of the first hinge plate 213 that contacts the workpiece. The first hinge plate 213 is hinged to the first pressure block 211, and the two can rotate relative to each other. One end of the first spring 215 is fixedly connected to the first pressure block 211, and the other end is fixedly connected to the first hinge plate 213. The elastic force of the first spring 215 always causes the first hinge plate 213 to rotate away from the first pressure block 211. The ball bearing 214 is rotatably connected to the first hinge plate 213. During bending, the ball bearing 214 can roll along the surface of the workpiece until the first forming surface is in close contact with the workpiece surface.

[0050] In one embodiment, the second forming component 220 includes a second pressing block 221 and a second flattening unit. The second pressing block 221 has a second groove 222, and a second slide bar 112 is fixedly disposed on the top block 110. The second slide bar 112 is slidably connected to the second groove 222. The second slide bar 112 is inclined towards the central axis of the second pressing block 221, and the degree of inclination of the second slide bar 112 is greater than the degree of inclination of the first slide bar 111. The second flattening unit is used to reduce frictional wear on the workpiece surface during bending.

[0051] Furthermore, the second flattening unit includes a second hinge plate 223, a second spring, and a roller 224. The second forming surface is the contact surface between the second hinge plate 223 and the workpiece. The second hinge plate 223 is hinged to the second pressure block 221, and the two can rotate relative to each other. One end of the second spring is fixedly connected to the second pressure block 221, and the other end is fixedly connected to the second hinge plate 223. The spring force always causes the second hinge plate 223 to rotate away from the second pressure block 221. The roller 224 is rotatably connected to the second hinge plate 223 and can rotate around its own axis. During bending, the roller 224 can roll along the surface of the workpiece until the second forming surface is in close contact with the workpiece surface.

[0052] Specifically, the workpiece is first placed on the placement surface 310, and the placement plate 311 is then placed over it. The hydraulic cylinder applies a downward driving force, i.e. Figure 12 In the vertical direction, the upper mounting plate 100 is driven to move closer to the lower mounting plate 300, causing the top block 110, the first pressing block 211, and the second pressing block 221 to move synchronously. During this process, the top of the first pressing block 211 and the top of the second pressing block 221 are both located close to the bottom of the top block 110, and the first forming surface, the second forming surface, and the bottom surface of the top block 110 are not on the same plane. At this time, the distance between the first pressing block 211 and the second pressing block 221 is small, so the overall size of the processed surface is small. The elastic force of the first spring 215 causes the first hinge plate 213 to rotate around the hinge point in a direction away from the first pressure block 211, increasing the opening angle between the first hinge plate 213 and the first pressure block 211, so that the first forming surface is tilted towards the placement plate 311; at the same time, the elastic force of the second spring causes the second hinge plate 223 to rotate around the hinge point in a direction away from the second pressure block 221, increasing the opening angle between the second hinge plate 223 and the second pressure block 221, so that the second forming surface is tilted towards the placement plate 311.

[0053] As the first hinge plate 213 gradually moves closer to the workpiece, the ball bearing 214 is the first to contact the workpiece. Simultaneously, as the second hinge plate 223 gradually moves closer to the placement plate 311, the roller bearing 224 is the first to contact the workpiece. At this time, the hydraulic cylinder continues to apply a downward driving force, causing the ball bearing 214 to roll along the surface of the workpiece to reduce wear caused by sliding, thereby compressing the first spring 215. This causes the opening angle between the first hinge plate 213 and the first pressure block 211 to gradually decrease, and the first forming surface to gradually become horizontal. Simultaneously, the roller bearing 224 rolls along the surface of the workpiece to reduce wear caused by sliding, thereby compressing the second spring. This causes the opening angle between the second hinge plate 223 and the second pressure block 221 to gradually decrease, and the second forming surface to gradually become horizontal. Simultaneously, the first pressing block 211 drives the first hinge plate 213 to slide upward relative to the top block 110 along the first slide bar 111, and the second pressing block 221 drives the second hinge plate 223 to slide upward relative to the top block 110 along the second slide bar 112. The tops of the first pressing block 211 and the second pressing block 221 gradually move away from the bottom end of the top block 110 and gradually away from the central axis of the top block 110. Therefore, the distance between the first pressing block 211 and the second pressing block 221 increases, and the size of the processed surface also increases accordingly. When the first forming surface, the second forming surface, and the bottom surface of the top block 110 are on the same plane, the distance between the first pressing block 211 and the second pressing block 221 is the largest, and the overall size of the processed surface is the largest. At this time, the processed surface and the placement surface 310 clamp the workpiece.

[0054] Then the hydraulic cylinder continues to apply downward driving force, and the first pressure block 211, the second pressure block 221, and the top block 110 move down and gradually press against the workpiece and the placement plate 311 connected to it. Figure 10 In the vertical direction, the placement plate 311 slides down synchronously and slides relative to the base 314, compressing the telescopic rod 313. At this time, the part of the workpiece located on the placement surface 310 begins to bend upward, thus realizing the first bending of the workpiece. Subsequently, the outer mold assembly contacts the end of the workpiece that has completed the first upward bend from below and applies further guiding pressure, pushing the end to continue to fold inward towards the workpiece, realizing the second inward fold, thus completing the second bending of the workpiece.

[0055] After the second bending is completed, the opening size at the top of the workpiece is smaller than the size of the machined surface at this time. Therefore, if the hydraulic cylinder is driven in the reverse direction, it will cause the upper mounting plate 100 and the top block 110 to slide upward and reset, i.e. Figure 12 In the vertical direction, the first pressing block 211, the second pressing block 221, the first hinge plate 213 and the second hinge plate 223 will interfere with the workpiece, making it impossible to achieve smooth reset.

[0056] Therefore, the hydraulic cylinder applies an upward driving force, that is... Figure 12The upper mounting plate 100 slides upwards and resets in the vertical direction. During this process, the top block 110 moves upwards synchronously with the mounting plate, while the first pressing block 211 and the second pressing block 221 slide downwards relative to the top block 110. Then, the first pressing block 211 drives the first hinge plate 213 to slide along the first slide bar 111, and the second pressing block 221 drives the second hinge plate 223 to slide along the second slide bar 112. Because both the first slide bar 111 and the second slide bar 112 are inclined towards the central axis of the top block 110, and the inclination of the second slide bar 112 is greater than that of the first slide bar 111, as the top block 110 continues to slide upwards, the top of the first pressing block 211 and the top of the second pressing block 221 gradually approach the bottom of the top block 110 and gradually approach the central axis of the top block 110. Consequently, the distance between the first pressing block 211 and the second pressing block 221 gradually decreases, and thus the overall size of the processed surface gradually decreases.

[0057] When the size of the machined surface is smaller than the opening size at the top of the workpiece, the first pressure block 211 drives the first hinge plate 213 to gradually detach from the workpiece, and the second pressure block 221 drives the second hinge plate 223 to gradually detach from the workpiece. During this process, the first pressure block 211, the second pressure block 221, the first hinge plate 213, and the second hinge plate 223 gradually return to their initial positions, and the first hinge plate 213 and the second hinge plate 223 gradually return to their tilted state, and the first forming surface and the second forming surface gradually return to their tilted state. At the same time, the telescopic rod 313 gradually extends, driving the placement plate 311 to move upward and return to its initial position. Figure 12 The up and down directions in the middle.

[0058] Therefore, by setting the ball bearing 214, the relative motion between the first forming surface and the workpiece is changed from traditional sliding contact to rolling contact; at the same time, by setting the roller 224, the relative motion between the second forming surface and the workpiece is changed from sliding contact to rolling contact, thereby reducing the wear on the workpiece caused by sliding friction.

[0059] In one embodiment, the outer mold assembly includes multiple sliding plates 302, multiple baffles 301, and a guide unit. The multiple sliding plates 302 are circumferentially arranged around the central axis of the placement surface 310, and the multiple baffles 301 are also circumferentially arranged around the central axis of the placement surface 310. A fixing block 312 is fixedly mounted on the base 314, and the sliding plates 302 are slidably connected to the fixing block 312. The baffles 301 are fixedly connected to the lower mounting plate 300, and the baffles 301 restrict the sliding direction of the sliding plates 302 and prevent the sliding plates 302 from detaching from the base 314. The guide unit can drive the sliding plates 302 to slide away from the baffles 301 to perform a secondary bending of the workpiece.

[0060] Furthermore, the guiding unit also includes guide strips 120, which are slidably connected to the upper mounting plate 100. Multiple guide strips 120 are provided, arranged circumferentially around the central axis of the upper mounting plate 100. Each guide strip 120 has a first inclined surface 121, and each end of the sliding plate 302 has a second inclined surface 303. Both the first and second inclined surfaces 121 and 303 are inclined away from the central axis of the placement plate 311, and the opening of the first inclined surface 121 faces the baffle 301. When the upper mounting plate 100 moves downwards to engage with the lower mounting plate 300, the first inclined surfaces 121 of the two guide strips 120 engage with the second inclined surfaces 303 at both ends of the sliding plate 302, driving the sliding plate 302 to slide away from the baffle 301.

[0061] Specifically, the continuous stamping equipment for cash register processing also includes a drive source, which provides power to the guide bar 120. After the workpiece completes its first bend, the drive source drives the guide bar 120 to slide downwards and slide relative to the lower mounting plate 300, i.e. Figure 10 The first inclined surface 121 abuts against the second inclined surface 303 in the vertical direction, thereby driving the sliding plate 302 to slide along the fixed block 312 toward the placement plate 311, and then contact the end of the workpiece that has completed the first bend. As the sliding plate 302 slides further, it pushes the part of the end to continue to fold inward toward the workpiece, that is, to achieve a second inward fold, thereby completing the second bend of the workpiece.

[0062] In one embodiment, each sliding plate 302 is provided with a roller 304 that can rotate about its own axis. The roller 304 is horizontally mounted on the side surface of the sliding plate 302 facing the workpiece. Specifically, when the sliding plate 302 performs a secondary bending on the workpiece, the roller 304 first contacts the workpiece surface and rolls along the workpiece surface under the continued sliding action of the sliding plate 302. This changes the relative motion between the sliding plate 302 and the workpiece from traditional sliding contact to rolling contact, thereby reducing wear on the workpiece caused by sliding friction.

[0063] In one embodiment, a rotatable rotating rod 232 is provided inside the top block 110, and a rotatable knob 231 is provided on the outer wall of the top block 110. The knob 231 is fixedly connected to the rotating rod 232, and the rotating rod 232 can be rotated around its own axis by manually rotating the knob 231. A limit block 233 is provided on the rotating rod 232, and the limit block 233 is threadedly connected to the rotating rod 232. An elastic locking block 234 is slidably provided inside the limit block 233, and a limit groove 235 is formed on the first pressing block 211. The elastic locking block 234 is slidably connected to the limit groove 235.

[0064] Specifically, based on the forming width required for the second bending of the workpiece, i.e. Figure 5The horizontal dimension is adjusted by rotating the knob 231 to drive the rotating rod 232 to rotate around its own axis, causing the limiting block 233 to slide along the axial direction of the rotating rod 232, thereby adjusting the relative position of the elastic block 234 and the rotating rod 232. When a smaller forming width is required during the second bend, the knob 231 is rotated clockwise, driving the limiting block 233 to move towards the top of the top block 110, making the elastic block 234 closer to the top of the limiting groove 235; conversely, when a larger forming width is required during the second bend, the knob 231 is rotated counterclockwise, driving the limiting block 233 to move towards the bottom of the top block 110, increasing the distance between the elastic block 234 and the top of the limiting groove 235. Therefore, based on the forming width required for the second bending of the workpiece, the distance between the elastic block 234 and the bottom of the limiting groove 235 is adjusted to limit the relative displacement of the first pressure block 211 with the top block 110 when it is reset, and further limit the relative displacement of the second pressure block 221 with the top block 110 when it is reset, so as to avoid excessive wear between the first pressure block 211, the second pressure block 221 and the top block 110.

[0065] In one embodiment, receiving grooves 321 are provided on both the first forming surface and the second forming surface. When the balls 214 and rollers 224 roll along the surface of the workpiece, the balls 214 and rollers 224 can adhere to impurities on the surface of the workpiece and collect them in the receiving grooves 321, avoiding excessive impurities from being pushed to the inner corner of the bend and avoiding forming defects on the surface of the bend of the workpiece.

[0066] Specifically, a rolling rod 322 capable of rotating around its own axis is provided on the side of the first hinge plate 213 that contacts the workpiece, on the side of the second hinge plate 223 that contacts the workpiece, and on the side of the base 314 near the placement plate 311, so that it makes rolling contact with the workpiece, thereby reducing wear on the workpiece.

[0067] Furthermore, a hydraulic cylinder 320 is fixedly mounted on the lower mounting plate 300. The hydraulic cylinder 320 contains lubricating oil and has multiple oil pipes. Furthermore, a first channel 323 is formed inside the first hinge plate 213, which communicates with the oil pipes and leads to the mounting positions of the ball bearing 214 and the rolling rod 322; a second channel 324 is formed inside the second hinge plate 223, which communicates with the oil pipes and leads to the mounting positions of the roller 224 and the rolling rod 322; a third channel 325 is formed inside the sliding plate 302, which communicates with the oil pipes and leads to the mounting position of the roller 304; and a fourth channel 326 is formed inside the base 314, which communicates with the oil pipes and leads to the mounting position of the rolling rod 322. Therefore, the hydraulic cylinder 320 can deliver lubricating oil to each ball 214, each roller 304 and each rolling rod 322 through the oil pipe and lubricate them, thereby further reducing their wear on the workpiece, while ensuring that each ball 214, each roller 304 and each rolling rod 322 rotates smoothly.

[0068] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A continuous stamping equipment for processing cash register boxes, characterized in that, include: An upper mounting plate is provided, on which a top block is fixedly mounted, and an inner mold assembly is mounted on the top block; The lower mounting plate is provided with an outer mold assembly; when the upper mounting plate moves downward and cooperates with the lower mounting plate, the outer mold assembly, the inner mold assembly and the top block bend the workpiece. The inner mold assembly includes multiple first molding components and multiple second molding components, which are arranged alternately in a circumferential direction around the central axis of the top block; the first molding component includes a first molding surface, the second molding component includes a second molding surface, and the first molding surface, the second molding surface, and the bottom surface of the top block together form a processing surface that contacts the workpiece surface; During the bending process of the workpiece, both the first forming component and the second forming component roll into contact with the workpiece, causing both the first forming surface and the second forming surface to change from an inclined state to a flat state, while increasing the size of the processed surface; after the bending is completed, both the first forming component and the second forming component roll out of contact with the workpiece, causing the first forming surface and the second forming surface to return from a flat state to an inclined state, while decreasing the size of the processed surface.

2. The continuous stamping equipment for processing cash registers according to claim 1, characterized in that, The first forming component includes a first pressing block and a first flattening unit. The first pressing block has a first sliding groove. A first sliding strip is fixedly provided on the top block. The first sliding strip is inclined toward the central axis of the first pressing block and is slidably connected to the first sliding groove. The first flattening unit is used to reduce frictional wear on the workpiece surface during bending.

3. The continuous stamping equipment for processing cash registers according to claim 2, characterized in that, The second forming component includes a second pressing block and a second flattening unit. The second pressing block has a second sliding groove. A second sliding strip is fixedly provided on the top block. The second sliding strip is inclined toward the central axis of the second pressing block. The inclination of the second sliding strip is greater than that of the first sliding strip. The second sliding strip is slidably connected to the second sliding groove. The second flattening unit is used to reduce frictional wear on the workpiece surface during bending.

4. The continuous stamping equipment for processing cash registers according to claim 3, characterized in that, The first flattening unit includes a first hinge plate, a first spring, and a ball bearing; the first forming surface is the surface of the first hinge plate that contacts the workpiece, the first hinge plate is hinged to the first pressure block, and the first hinge plate and the first pressure block can rotate relative to each other; one end of the first spring is fixedly connected to the first pressure block, and the other end is fixedly connected to the first hinge plate, and the elastic force of the first spring always causes the first hinge plate to rotate away from the first pressure block; the ball bearing is rotatably connected to the first hinge plate, and during the bending process, the ball bearing can roll along the surface of the workpiece until the first forming surface is in close contact with the surface of the workpiece.

5. The continuous stamping equipment for processing cash registers according to claim 4, characterized in that, The second flattening unit includes a second hinge plate, a second spring, and a roller; the second forming surface is the surface of the second hinge plate that contacts the workpiece, the second hinge plate is hinged to the second pressure block, and the second hinge plate and the second pressure block can rotate relative to each other; one end of the second spring is fixedly connected to the second pressure block, and the other end is fixedly connected to the second hinge plate, and the elastic force of the second spring always causes the second hinge plate to rotate away from the second pressure block; the roller is rotatably connected to the second hinge plate, and the roller can rotate around its own axis. During the bending process, the roller can roll along the surface of the workpiece until the second forming surface is in close contact with the surface of the workpiece.

6. The continuous stamping equipment for processing cash registers according to claim 1, characterized in that, The outer mold assembly includes multiple sliding plates, multiple baffles, and a guide unit. The multiple sliding plates are circumferentially arranged around the central axis of the lower mounting plate, and the multiple baffles are circumferentially arranged around the central axis of the lower mounting plate. The sliding plates are slidably connected to the lower mounting plate, and the baffles are fixedly connected to the lower mounting plate. The baffles are used to limit the sliding direction of the sliding plates. The guide unit can drive the sliding plates to slide away from the baffles to perform a secondary bending of the workpiece.

7. The continuous stamping equipment for processing cash registers according to claim 6, characterized in that, The guiding unit further includes a guide strip, which is slidably connected to the upper mounting plate. The guide strip has a first inclined surface, and the sliding plate has a second inclined surface. When the upper mounting plate moves downward and cooperates with the lower mounting plate, the first inclined surface cooperates with the second inclined surface to drive the sliding plate to slide away from the baffle.

8. The continuous stamping equipment for processing cash registers according to claim 6, characterized in that, Each of the sliding plates is provided with a rotatable roller, which can rotate about its own axis; when the sliding plate performs a secondary bending of the workpiece, the roller can roll along the surface of the workpiece to reduce the wear of the workpiece by the sliding plate.

9. The continuous stamping equipment for processing cash registers according to claim 2, characterized in that, The top block is provided with a rotatable rotating rod, which can rotate around its own axis; a limit block is provided on the rotating rod, and the limit block is threadedly connected to the rotating rod; an elastic locking block is slidably provided inside the limit block, and a limit groove is provided on the first pressing block, and the elastic locking block is slidably connected to the limit groove, and the elastic locking block is used to limit the sliding displacement of the first pressing block.

10. The continuous stamping equipment for processing cash registers according to claim 5, characterized in that, Both the first forming surface and the second forming surface are provided with receiving grooves. When the balls and the rollers roll along the surface of the workpiece, the receiving grooves can collect impurities from the surface of the workpiece.

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