31results about How to "Reduce die change time" patented technology

This application relates to the technical field of motor core production, and particularly to a stamping device and process for stacking double-outer-diameter short-common-edge laminations for EV new energy vehicles. The device includes a frame, an upper die base mounted on the frame, a control component slidably connected to the upper die base, an outer-diameter switching punch mounted on the control component, and a stamping cutter mounted on the upper die base. The frame is equipped with a hydraulic component that drives the upper die base to move up and down. The control component drives the outer-diameter switching punch to extend or retract to the lower end face of the stamping cutter. When the outer-diameter switching punch extends, it cooperates with the stamping cutter to stamp the smaller outer-diameter stator laminations; when the outer-diameter switching punch retracts, only the stamping cutter stamps the larger outer-diameter stator laminations. This application improves the efficiency of core processing.

The utility model belongs to the technical field of machining and forming of automobile parts, and particularly relates to an automobile machined part bonding jig which comprises a bottom plate, a lower die, a pressing mechanism and an upper die, and the lower die is detachably connected to the bottom plate; the pressing mechanism is arranged on the bottom plate and located on one side of the lower die. The upper die is arranged at the output end of the pressing mechanism; wherein the bottom plate is provided with a controllable magnetic attraction mechanism, the output end of the controllable magnetic attraction mechanism faces the lower die, the lower die is provided with a magnetic part, and the controllable magnetic attraction mechanism can attract and fix the lower die on the bottom plate through the magnetic part. Local stress concentration can be avoided through uniform distribution of magnetic attraction force, the positioning stability of the lower die is ensured, meanwhile, adhesive residues are convenient to clean through the detachable design, and the maintenance difficulty is reduced. In addition, the modularized magnetic attraction fixing mode is compatible with rapid switching of lower dies of multiple specifications, and the flexible production capacity of a production line is effectively improved.

This invention discloses a hard mold casting device for steel casting production, specifically relating to the field of hard mold casting technology. The device includes: a base frame; a lower mold and an upper mold, arranged sequentially from bottom to top above the base frame; multiple guide rods fixedly connected to the upper surface of the base frame, each guide rod penetrating the surfaces of the lower and upper molds to guide their closing and opening; a lower mold sleeved inside the lower mold; and an upper mold sleeved inside the upper mold. This invention utilizes staggered square tubes and nut joints to divert and deliver coolant, which is then evenly sprayed through atomizing holes in the water pipe to improve mold cooling efficiency and avoid affecting casting quality. An electric cylinder pushes a pusher and multiple sets of supports to lift the lower mold, achieving smooth demolding of the casting. The upper mold can be quickly disassembled and assembled using pins, springs, and through-hole locking mechanisms on the positioning plate, shortening mold change time and improving production flexibility.

The utility model relates to the technical field of positioning stamping, and discloses special-shaped metal sheet positioning stamping equipment which comprises an operation table, an electric push rod is fixedly connected into the operation table, a sliding plate is fixedly connected to the top of the electric push rod, and two supporting columns are fixedly connected to the top of the sliding plate. The top of each supporting column is fixedly connected with a sliding block, the sides, far away from each other, of the sliding blocks are fixedly connected with two first square sliding blocks, the exteriors of the first square sliding blocks are slidably connected with triangular sliding blocks, the exteriors of the triangular sliding blocks are slidably connected with supporting frames, and the tops of the triangular sliding blocks are fixedly connected with clamping plates. According to the stamping die, it is guaranteed that the position of a thin plate is fixed without deviation during stamping, stamping size errors or workpiece scrapping caused by positioning deviation are avoided, vibration and shaking are reduced, the stamping die is particularly suitable for stamping scenes with complex shapes or high-precision requirements, and the consistency of machining quality is improved.

The application relates to a quick dismounting structure and method for a heavy mold, and relates to the technical field of mold manufacturing. The quick dismounting structure comprises a mounting mold frame and a heavy mold arranged on the mounting mold frame. The mounting mold frame comprises a lower mold base for supporting the heavy mold, an upper mold frame, and a wedge block assembly wedged between the heavy mold and the mounting mold frame. The heavy mold is provided with an upper mounting portion and a lower mounting portion. The lower mounting portion is provided with a lower guide surface inclined towards both sides of the heavy mold from top to bottom. The upper mold frame is provided with an upper mounting groove matched with the upper mounting portion for locking. The lower mold base is provided with a lower mounting groove matched with the lower mounting portion for locking and a push assembly slidably arranged on both sides of the lower mounting groove. The push assembly comprises an ejection unit arranged on one side of the lower mounting portion and a push-in unit arranged on the other side. The ends of the ejection unit and the push-in unit are respectively parallel to the corresponding lower guide surfaces. The application can improve the quick dismounting effect of the heavy mold and the mold frame support.

This application relates to the technical field of stamping and die-cutting equipment, and discloses a quick-change mechanical locking stamping and die-cutting machine, comprising: a stamping and die-cutting machine body, a driving device arranged on the right side of the stamping and die-cutting machine body, a control device arranged on the top of the driving device, a top plate arranged on the top of the stamping and die-cutting machine body, a die-changing mechanism arranged below the top plate, a cleaning mechanism arranged behind the die-changing mechanism, a feeding mechanism arranged to the left of the cleaning mechanism, a first guide roller arranged on the right side of the stamping and die-cutting machine body, and a receiving device arranged to the right of the first guide roller. This invention solves the problems of low feeding accuracy due to large tension fluctuations during the feeding process in existing stamping and die-cutting machines, the time-consuming and labor-intensive manual die-changing process with unreliable locking safety hazards, and the problem that a single negative pressure waste suction method is incomplete in cleaning adhesive debris, affecting product quality and production continuity.

The utility model relates to the technical field of forging furnace discloses a kind of multi-station quick die changing mechanism of forging furnace, comprising: base, for supporting overall structure;Multiple groups of push cylinder, fixed on base, and its output end is connected with push rod;Guide limiting rod, parallel setting in push rod both sides, for orientation;Push seat, with push rod, guide limiting rod fixed connection, and push seat is equipped with guide bar mouth and positioning jack;Die holder guide bar, slidably installed in guide bar mouth, and positioning slot is equipped in die holder guide bar;Positioning jack, cooperate with positioning jack and positioning slot by positioning jack, realize the quick positioning and locking of die holder guide bar. Multiple groups of push cylinder and guide limiting rod cooperation of being set, so that die holder guide bar can be quickly, stably switched between different stations, greatly shorten die changing time. Meanwhile, the cooperation design of positioning jack and positioning slot realizes the quick positioning and locking of die holder guide bar, improves the accuracy and efficiency of die changing.

A saw blade punching tooth combined die, the die comprises a bottom table, a bottom plate, an upper clamp plate, a lower clamp plate, a rotating plate and a top table, a plurality of size concave dies are carried through the rotating plate between the upper and lower clamp plates, precise positioning is realized by the interference fit of the ratchet disc and the ratchet groove, the rotating plate outer wall tooth groove corresponds to the scale bar of the upper clamp plate, the rotating angle is directly controlled, the top table quickly replaces the punch plate through the clamping plate, and the punch tooth processing is completed in cooperation with the convex die and the concave die; the bottom table storage groove integrates the idle punch plate, and part loss is avoided. The present application solves the problems of low die changing efficiency, positioning deviation and single function of the traditional die, realizes the rapid switching and high-precision processing of multiple specifications of tooth shape, and improves the flexibility and reliability of saw blade production.

The utility model discloses a kind of high-efficiency cold extrusion processing devices of universal shaft spline, it is related to machining technical field, including processing base, the top eccentricity of processing base is fixedly installed with four guide rods in rectangular array, the top of four The guide rod is fixedly installed with top plate, the top center of processing base is provided with universal shaft positioning mechanism, the upper portion of universal shaft positioning mechanism is provided with down mechanism, and the down mechanism includes down plate.The utility model spline cold-pressing die adopts modular design, realizes radial positioning by the attachment of limiting ring and down plate bottom, axial fixation is completed by the thread connection of limiting disc and fixed bolt and bolt hole on top, traditional overall disassembly bolt mode is simplified, only need to loosen single fixed bolt can replace die, substantially reduce die-changing time, simultaneously, different specifications of spline cold-pressing die can be equipped with limiting ring unified size in advance, realize that it is disassembled and installed, significantly improve production line flexibility and production efficiency.

This utility model discloses a silicone pressing fixture, relating to the field of silicone pressing fixture technology. It includes a fixture plate, a telescopic cylinder, a pressure plate, a base plate, a pressing template, a connecting assembly, and a telescopic assembly. The telescopic cylinder is fixed to the top of the fixture plate, the pressure plate is installed on the electric telescopic end of the telescopic cylinder, the base plate is located directly below the pressure plate, the pressing template slides through the top of the base plate, the connecting assembly is mounted on the side of the pressing template, and the telescopic assembly is installed on the back of the fixture plate. This utility model, through the coordinated arrangement of the pressing template, connecting assembly, and telescopic assembly, achieves automatic ejection and resetting of the pressing template, shortening the mold changing time and facilitating rapid mold replacement. It allows for pre-positioning of the silicone. With the assistance of the telescopic assembly, the pressing template is automatically lifted to a predetermined height, facilitating precise replacement of the pressing template by a robotic arm, improving automation, and increasing the pressing efficiency of the silicone.

The utility model relates to metal sheet processing equipment field, concretely is a kind of wire harness automatic connecting device based on uncoiling line swing shear die. Including swing shear die, height adjusting mechanism, support no.

The utility model relates to the technical field of forming dies, in particular to a high-precision screw head forming die. According to the technical scheme, the device comprises a bottom plate, a first motor, a mounting ring and a mounting pipe, the first motor is arranged at the upper end of the bottom plate, a rotating disc is arranged at the upper end of the first motor, a mounting frame is arranged at the upper end of the bottom plate, a second hydraulic rod is arranged in the mounting frame, a ring base is arranged at one end of the mounting frame, and the mounting ring is arranged in the ring base; and a mounting pipe is embedded in the mounting ring, a supporting ring is arranged in the lower end of the mounting pipe, a guide rod is mounted in the supporting ring, a punch is arranged at the lower end of the guide rod, and a second motor is arranged at one end of the mounting frame. According to the utility model, a plurality of different types of punches are mounted below the mounting ring, and the corresponding stations of the punches are conveniently adjusted through the rotating piece, so that the problems that when a punching groove of a screw head needs to be adjusted, a punching die head needs to be disassembled and assembled, and the process adjustment is tedious and time-consuming are solved.

This utility model belongs to the technical field of bath towel embossing molds, specifically a bath towel embossing device with quick mold replacement. It includes a fixed mold base and a movable mold base, as well as two fixed plates fixed to the bottom surface of the fixed mold base. The fixed mold base is positioned above a processing table. The processing table has positioning slots that mate with the fixed plates. The fixed plates have two insertion holes. A plug block for insertion into the insertion holes is located below the processing table. A buffer plate is positioned below the processing table, and a spring is fixed to the bottom of the buffer plate. The spring is used to prevent rigid collisions between the fixed mold base and the processing table during installation. This utility model allows for quick unlocking and locking of the fixed mold base, enabling rapid replacement. Furthermore, it buffers the fixed mold base during installation, preventing damage from rigid collisions between the fixed mold base and the processing table.

The utility model discloses a kind of multi-layer superimposed silicon carbide ceramic filters, specifically relates to silicon carbide ceramic filter field, including ceramic filter body, the ceramic filter body includes upper layer silicon carbide plate, the lower end of the upper layer silicon carbide plate is connected with middle layer silicon carbide plate, the lower layer silicon carbide plate is connected with lower layer silicon carbide plate below middle layer silicon carbide plate, a kind of multi-layer superimposed silicon carbide ceramic filter's needle punching plastic hole processing device is also disclosed, including processing equipment, the processing equipment includes workbench, the lower end of the workbench is connected with driving mechanism, the middle part of one side of the workbench is connected with down-pressure mechanism, the lower end of the down-pressure mechanism is connected with needle punching mechanism, the utility model is reinforced by multi-layer silicon carbide plate grading filtration and adhesive cover structure, combined with the flexible adjustment of needle punching plastic hole device, reaches the technical effect of promoting aluminium liquid filtration cleanliness, enhancing filter structural stability, improve silicon carbide plate processing efficiency and adaptability simultaneously.

The utility model relates to filter end cover processing equipment technical field discloses a kind of filter end cover automatic stamping equipment, including support frame, the bottom end of the support frame is fixedly connected with support leg, the left side of the support frame is fixedly connected with servo motor respectively before and after, the output of the servo motor is fixedly connected with ball screw, the right end of the ball screw is rotatably connected with the right side inner wall of support frame by limit ring, by setting servo motor, ball screw, ball nut seat and limit cross plate, equipment adopts the transmission system of servo motor, ball screw and ball nut seat, the guidance constraint of cooperation limit cross plate to support plate, realize the accurate positioning and stable conveying of workpiece, compared with traditional manual or cylinder conveying, the system: avoid the error of manual placement workpiece, ensure the cooperation accuracy of workpiece and press mould and cushion mould, improve the size consistency and forming quality of stamping part, improve production efficiency.

This utility model discloses a lifting mechanism for mold changing in a hot-pressing edge-wrapping equipment, comprising a base, a column frame, a support platform, a lifting assembly, and various optimized structures. The support platform can be raised and lowered, and the lifting assembly, in conjunction with a hydraulic push rod, assists in the raising and lowering process; the dual-drive mode improves stability and efficiency. The top of the support platform is equipped with a positioning pin and an elastic buffer pad to ensure mold installation accuracy; buffer blocks and buffer springs enhance safety. Photoelectric sensors and a controller improve operational accuracy, while a protective cover and lubrication device ensure equipment durability. This application can significantly shorten mold changing time, improve equipment stability and safety, and meet the needs of high-efficiency production.

This utility model discloses a quick mold changing device for a blow molding machine. It includes a movable frame with a vertically mounted bracket at the top. A slide rail on one side of the bracket connects a lifting slider and a lifting plate. A smooth rod is located in a rectangular groove at the end of the lifting plate. Movable blocks one and two slide on the smooth rod, respectively connecting to placement plates one and two. A threaded rod in the rectangular groove is threadedly connected to movable blocks one and two, and distance adjustment is achieved through a motor, sprocket, and chain drive. Lifting sprockets are located at the top and bottom of the bracket, connected by a lifting chain. The lifting chain is connected to the lifting slider. A counterweight on the slide rail on the other side of the bracket is also connected to the chain. The lifting motor at the top of the movable frame drives a synchronous shaft via sprockets and chain to achieve lifting. The bottom of the movable frame has casters. This device allows for separate mold installation, can be operated while the blow molding machine is in the open mold state, has high mold changing efficiency, can be adjusted to adapt to different molds, has a stable structure, and is easy to move around the work site.

The utility model relates to the technical field of bicycle production and processing, in particular to a bicycle head tube clamping and fixing device for laser equipment, which is characterized in that a support base is provided with a guide rail extending along a first direction, an adjusting bottom plate is slidably arranged on the guide rail, and a positioning plate is fixedly arranged on the support base; the clamping assembly comprises a plurality of clamping pieces arranged on the adjusting bottom plate at intervals in the second direction, and the clamping pieces slidably penetrate through the adjusting bottom plate in the first direction and can press the bicycle head tube between the clamping pieces and the positioning plate. The laser cutting device can adaptively move and adjust the position of the adjusting bottom plate in the first direction according to the specification and model of the bicycle head tube, so that the bicycle head tube can be rapidly clamped by the multiple clamping pieces and the positioning plate, laser cutting operation is completed, the function of laser cutting of the bicycle head tubes of multiple models and specifications can be completed only through one set of device, and the laser cutting efficiency is improved. The die cost, the die space and the die changing time can be reduced, and the operation is flexible and convenient.

The utility model relates to the field of sheet metal working, in particular to angle-adjustable bending equipment for sheet metal working. The equipment comprises a supporting frame and a supporting plate, a punching groove is formed in the supporting frame in a penetrating mode, the supporting plate is arranged on the lower side of the supporting frame, and a deformation groove aligned with the punching groove is formed in the supporting plate. Two contact plates are arranged on the two sides of the punching groove in the upper end of the supporting frame, and a driving mechanism I is arranged below the contact plates. The driving mechanism I can drive the two contact plates to move relatively, so that the distance between the two contact plates is changed, and the bending position and angle of the workpiece to be machined are accurately adjusted. Due to the introduction of the equipment, the flexibility and efficiency of the production process are remarkably improved, meanwhile, the production cost is reduced, and the product bending precision and the quality stability are ensured.

The utility model discloses a bending forming die for a lead, which belongs to the technical field of forming dies and comprises a side plate, a sliding block is slidably arranged on the side plate through a sliding hole, a first upper die is fixed on one side of the sliding block, and a first bolt and a second sliding rod are symmetrically arranged on two sides of an upper diagonal line of the first upper die. A second upper mold is installed on the outer side of the first bolt in a threaded mode, a connecting hole is formed in the connecting position of the second upper mold and the second sliding rod, and first inclined grooves which are symmetrical to each other are formed in the bottom of the first upper mold and the bottom of the second upper mold. According to the utility model, the distance between parts is adjusted by two hands, leads with different thicknesses can be flexibly adapted, the die does not need to be replaced, the universality is obviously improved, and the equipment cost and inventory are reduced; adjustment is fast, die changing time is shortened, and production efficiency is improved. And in addition, due to the interval design, dust and chippings can be discharged conveniently, accumulation of the dust and chippings is avoided, and the abrasion risk is reduced.

This application relates to the field of mold technology and discloses a quick mold replacement and reference alignment device, including a base. A multi-functional truss arm is fixedly connected to the upper part of the base. A worktable is fixedly connected to the upper left side of the base. A lower mold is arranged on the upper part of the worktable. An automatic centering structure is fixedly connected to the middle of the worktable. First anti-rotation mechanisms are fixedly connected to the left and right sides of the upper part of the worktable. A quick-change plate mechanism is fixedly connected to the lower part of the multi-functional truss arm. Parallel adjustment mechanisms are fixedly connected to the left and right sides of the lower part of the quick-change plate mechanism. An upper mold is arranged outside the quick-change plate mechanism. Second anti-rotation mechanisms are arranged on the left and right sides inside the upper mold. A crystal removal component is arranged on the upper right side of the base for further removing salt solution crystals. By changing the upper and lower molds through the multi-functional truss arm, automatic mold centering and quick switching are achieved, avoiding the risk of manual operation and contact with salt solution.

The utility model provides a kind of forging die for special-shaped forge piece, including upper die and lower die, lower die is set on the workbench of forging press, upper die is set on the pressure head of forging press, workbench is provided with die body, die body is internally provided with the die cavity compatible with special-shaped forge piece, lower die is detachably set in the die cavity, and lower die is attached with die cavity, upper die is detachably set in the lower part of pressure head, and upper die is compatible with lower die, lower die includes fixed die and movable die, movable die is located on fixed die, and lifting assembly is arranged on the lower part of movable die on workbench, the utility model can realize the quick replacement and maintenance operation of die by detachably set die, and the automatic lifting and discharging operation of workpiece after forging can be realized by lifting assembly while lifting movable die in lower die, greatly improve the workpiece's material efficiency, and then greatly improve the forging efficiency, more convenient and efficient operation.

This utility model discloses a wok stamping die, relating to the field of stamping die technology. It includes a die body and a die base for supporting and fixing the die body. The lower end of the die body is provided with a positioning block, and the middle position of the die base is provided with a positioning groove that matches the positioning block. Several positioning holes are arranged on the outer side of the positioning groove. These positioning holes are evenly distributed on a concentric ring with increasing diameter, centered on the center of the positioning groove. Positioning pins are threaded into the positioning holes. This utility model achieves a true "center-concentric" reference system by setting a positioning block at the lower end of the die body and providing a matching positioning groove and multiple sets of positioning holes and pins arranged in concentric rings on the die base. This ensures high concentricity and uniform wall thickness of the wok even after long-term use.

The utility model discloses a frame engine support rapid welding device which comprises a supporting seat frame, a placing plate is arranged on the upper surface of the supporting seat frame, transverse moving sets are arranged on the two sides of the placing plate, side support plates are arranged on the transverse moving sets, a longitudinal moving set is arranged on one side of each side support plate, and a transverse moving set is arranged on the other side of each side support plate. A transverse moving set is arranged on the transverse moving set, a longitudinal moving set is arranged on the transverse moving set, a rotating driving piece is arranged on the longitudinal moving set, the output end of the rotating driving piece is connected with a welding set, and longitudinal and transverse grooves are formed in the placing plate. The welding set can flexibly move in a three-dimensional space through the rotating function provided by the transverse moving set, the longitudinal moving set and the rotating driving piece; it is ensured that the welding head can cover any position on the workpiece; the flexibility and accuracy of welding operation are greatly improved through the multi-axis movement capacity, the rotary driving piece allows the welding set to approach a welding point from multiple angles, and the welding device is very suitable for processing workpieces with complex geometric structures, such as curved surface or irregular shape welding tasks.

This utility model belongs to the field of die changing for engineering plastic extruders, and in particular, it is a quick die changing device for engineering plastic extruders. It addresses the problem that existing extrusion dies are installed by multiple bolts to the extrusion tube of the extruder, and extrusion is performed through the extrusion tube and the die. However, changing the extrusion dies usually requires manual disassembly and installation, which is cumbersome and time-consuming, leading to low production efficiency. The proposed solution includes an extruder and four extrusion dies. The top of the extruder is an extrusion cylinder, and one end of the extrusion cylinder is an extrusion tube. A die changing mechanism enables quick die changing. Compared to traditional manual die changing, the device significantly shortens the die changing time and reduces downtime, thereby significantly improving production efficiency. The stable rotation and precise positioning of the rotating disc of the stabilizing mechanism avoids die changing errors caused by vibration or shaking, improving the quality of the extruded product.

The utility model relates to a kind of automobile leg support compression resistance testing device, including frame, disc body, limit mould, extruder and station switching mechanism, according to corresponding automobile leg support selects suitable limit mould, first pull pull rod and drive to move and resist touch column, resist touch column extrusion spring, resist touch column one end and the clamping groove of disc body edge are separated from clamping, can realize the rotation adjustment of disc body, the limit mould required is rotated to the extruder below, disc body rotates on several support ball, the rotation of disc body reduces friction, and column body follows rotation, column body can only rotate, cannot move in vertical direction, under the action of spring, resist touch column arc end is extruded into clamping groove, realize the positioning of disc body, i.

This utility model belongs to the field of metal parts processing and provides a metal parts bending device. The metal parts bending device includes a machine base, a column on the machine base, a top seat on the column, a bending cylinder on the top seat, a fixed seat on the drive shaft of the bending cylinder via a connecting seat, and a clamping seat on the fixed seat via a fixing assembly. Both the fixed seat and the clamping seat have opposing clamping grooves. A bending pressure head is placed in the clamping groove. The fixed seat has blocking assemblies at both ends corresponding to the bending pressure head. The blocking assembly includes rotatably mounted blocking blocks, and a linkage rod is provided between the blocking blocks. The fixed seat has a pair of upper and lower locking blocks corresponding to the linkage rod, and one of the blocking blocks also has a blocking rocker arm. This device uses a fixing assembly composed of a cam, a pull rod, and a spring. The operator only needs to rotate the cam to quickly loosen or tighten the clamping seat, realizing rapid replacement of the bending pressure head, which significantly shortens the mold change time compared to traditional devices.

The utility model relates to the technical field of chain part stamping, in particular to chain part stamping forming equipment capable of quickly changing dies, which comprises a workbench and a support frame, and a stamping mechanism, a convenient module switching mechanism and a collaborative lifting component are arranged on the workbench; the stamping mechanism is mainly composed of a stamping air cylinder, an upper die and a lower die. The convenient module switching mechanism comprises a supporting and jacking U-shaped bracket, the bottom of the supporting and jacking U-shaped bracket is connected with the output end of a jacking air cylinder, the jacking air cylinder is installed on a positioning base plate, and rolling supporting wheel bodies are arranged at the two ends of the supporting and jacking U-shaped bracket. The bottom of the supporting and jacking U-shaped bracket is connected with the jacking air cylinder, a mold can be quickly jacked and lowered, the mold changing time is shortened, the mold height can be accurately and synchronously adjusted in cooperation with a plurality of components in the lifting assembly, the mold changing efficiency is further improved, and the multi-variety and small-batch production requirements are met.

The utility model relates to the technical field of flattening die-cutting machines, and discloses a packaging paperboard automatic flattening die-cutting mechanism which comprises a conveying rack, a flattening machine and a mounting frame are arranged at the top of the conveying rack, a hydraulic machine is mounted at the top of the mounting frame, the output end of the hydraulic machine is fixedly connected with a connecting plate, and the output end of the connecting plate is fixedly connected with the conveying rack. A buffer assembly is mounted at the bottom of the connecting plate, a butt joint plate is arranged at the bottom of the buffer assembly, a fixing assembly is mounted at the bottom of the butt joint plate, a mold is slidably connected to the bottom of the butt joint plate, and a sensor is mounted on the inner side of the mounting frame. The buffering assembly comprises a connecting frame, and the outer side of the connecting frame is slidably connected with a sliding block. The die contacts with the carton, the butt joint plate pushes the sliding block to extrude the buffer spring through the connecting rod, the spring deforms to absorb overload pressure of a hydraulic machine, damage of rigid impact to a cutting edge of the die is reduced, pressure transmission is smoother through the buffer design, and the service life of the die is prolonged.

This invention discloses a honeycomb paperboard irregular hole forming device, including a support frame, a rotatable die-cutting disc, multiple die-cutting molds, a stamping mechanism, and a composite drive mechanism. The die-cutting disc has multiple mounting parts, and each die-cutting mold is rotatably connected to one of the mounting parts and can rotate with the die-cutting disc to the stamping station. The stamping mechanism is connected to the composite drive mechanism, and its output part can be detachably connected to the die-cutting mold located at the stamping station. During operation, the composite drive mechanism first drives the stamping mechanism to approach and abut against the die-cutting mold in a straight line, then drives it to rotate clockwise to lock the die-cutting mold, and drives the die-cutting mold to rotate away from the die-cutting disc to complete the stamping. When the die-cutting mold needs to switch to an idle state, the composite drive mechanism drives the stamping mechanism to rotate counterclockwise, causing the die-cutting mold to return to its original position and be supported by the die-cutting disc. After releasing the lock, the stamping mechanism is driven to move away from the die-cutting disc in a straight line. This invention can improve the speed of changing irregular hole die-cutting molds.