Full-automatic punching die for corrugated cutter with holes

Abstract

The invention relates to the technical field of stamping dies, in particular to a full-automatic perforated corrugated cutter stamping die which comprises an upper die body and a lower die body which are used for conducting stamping forming on a material strap, and a guide feeding insert, a lower corrugated insert and a lower trimming insert are sequentially arranged at the upper end of the lower die body from front to back. A punching part is arranged on the lower corrugated insert; by means of a unique mechanism achieving transmission on the outer sides of the upper die body and the lower die body according to the die opening action, a first swing arm and a second swing arm are used for driving a cam rod to rotate, a ratchet wheel and a pawl are matched, the rotating angle of a first cam and the rotating angle of a second cam are accurately controlled during continuous punching, holes of different numbers and positions can be punched in a corrugated cutter according to needs, and the punching efficiency is improved. The formed corrugated cutter can be accurately cut off at last; corrugated cutters with different lengths and different hole numbers can be easily manufactured only by replacing the first cam and adjusting the length of the swing arm, and the adaptability of the die to various orders is greatly enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of stamping dies, in particular to a fully automated stamping die with a corrugated knife having holes. Background Art

[0002] With the diversified development of the catering industry and consumers paying more and more attention to the shape of food ingredients, the corrugated shaped ingredients processed by the corrugated knife can not only increase the aesthetics of the dishes, but also change the heating and flavor conditions of the ingredients during cooking to a certain extent, and their application is becoming more and more extensive.

[0003] At present, the mainstream way to make corrugated knives is to use molds for stamping. Mold stamping has the advantages of high efficiency and product consistency, which supports the basic plate of large-scale corrugated knife production. However, in order to adapt to the fixation of special materials on processing equipment, or for the consideration of assembling special structures, it is often necessary to punch holes in the corrugated knife. The existing conventional punching method is to carry out the punching operation after completing the stamping process of the corrugated knife. Although this step-by-step operation has a clear process, due to the unique corrugated surface of the corrugated knife after forming, the subsequent punching operation is difficult to accurately position on the corrugated surface, and quality problems such as drilling position deviation and irregular hole shape occur frequently, resulting in limited yield rate, increasing production costs, and slowing down the production rhythm.

[0004] Faced with this dilemma, some forward-looking manufacturers have taken a different approach and started to develop special molds that can punch holes while stamping the corrugated knives. At first glance, this type of integrated mold solves the problem of precision punching in steps, and in theory can produce finished corrugated knives with holes in one step. However, in-depth production practice will reveal that they have the disadvantage of poor flexibility.

[0005] The length requirements of corrugated knives in different food processing scenarios in the market vary greatly. Some small catering stores only need short and convenient corrugated knives to process delicate plating ingredients, while large food processing plants prefer long-sized corrugated knives to increase the amount of single cutting. Moreover, due to different fixing methods and supporting components, the number and position of punching required also have different requirements. The existing stamping belt punching molds are constrained by fixed lengths and fixed hole layouts and cannot adapt flexibly. Once the product order is changed, the mold has to be customized and adjusted again, which is time-consuming and labor-intensive, greatly hindering the corrugated knife manufacturers from responding quickly to market changes and meeting the needs of diverse customers. The efficient operation of the entire food processing industry chain is also affected. Therefore, it is urgent to improve the manufacturing process of corrugated knives and related molds. Summary of the invention

[0006] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.

[0007] A fully automated punching die with a corrugated knife having holes, comprising an upper die body and a lower die body for punching a material strip, wherein a guide feed insert, a lower corrugated insert and a lower trimming insert are sequentially arranged from the upper end of the lower die body to the front and back, and a punching portion is arranged on the lower corrugated insert; The lower end of the upper mold body is connected with an upper corrugated insert corresponding to the lower corrugated insert, a punching insert corresponding to the punching position and an upper trimming insert corresponding to the lower trimming insert. A first spring acting on the punching insert and a second spring acting on the upper trimming insert are arranged inside the upper mold body. In the mold closing state, the upper corrugated insert is docked with the lower corrugated insert, the punching insert docks with the punching position by overcoming the elastic force of the first spring, and the upper trimming insert docks with the lower trimming insert by overcoming the elastic force of the second spring; a punching drive rod and a trimming drive rod extending from the side of the upper mold body are also movably connected inside the upper mold body, and the upper mold body is also provided with a third spring acting on the punching drive rod and a fourth spring acting on the trimming drive rod. The punching drive rod drives the punching insert to overcome the elastic force of the first spring by overcoming the elastic force of the third spring, and the trimming drive rod drives the lower trimming insert to overcome the elastic force of the second spring by overcoming the elastic force of the fourth spring; The side of the upper mold body is also rotatably connected to a cam rod, on which a first cam connected to the punching drive rod, a second cam connected to the trimming drive rod, and a ratchet for driving the cam rod to rotate are provided, the first cam is provided with at least one first protrusion that pushes the punching drive rod, the second cam is provided with a second protrusion that pushes the trimming drive rod, a first swing arm is rotatably connected to the ratchet, and a pawl that acts on the ratchet is provided on the first swing arm, the first swing arm is rotatably connected to the second swing arm, and the second swing arm is rotatably connected to the side of the lower mold body.

[0008] Among them, the first swing arm and the second swing arm are driven to swing through the mold opening action, so that the pawl drives the ratchet to rotate, the first protrusion pushes the punching drive rod or disengages from the punching drive rod through the rotation of the ratchet, and the second protrusion pushes the trimming drive rod or disengages from the trimming drive rod through the rotation of the ratchet.

[0009] Preferably, the upper mold body and the lower mold body are used to punch the step-by-step moving material strip N times to form a finished product, and the mold opening action drives the first swing arm and the second swing arm to swing so that the pawl drives the ratchet to rotate M degrees, and the first protrusion pushes the punching drive rod or disengages from the punching drive rod through the M-degree rotation of the ratchet, and the second protrusion pushes the trimming drive rod or disengages from the trimming drive rod through the M-degree rotation of the ratchet, and M is equal to 360 divided by N.

[0010] Preferably, a fifth spring is connected between the guide feed insert and the lower mold body, so that the guide feed insert can be lifted by the fifth spring when the mold is opened, thereby lifting the material strip from the lower corrugated insert to keep it suspended.

[0011] Preferably, the punching insert and the upper trimming insert are both provided with an inclined slider movably connected to the upper mold body, the first spring is connected between the inclined slider of the punching insert and the upper mold body, the second spring is connected between the upper trimming insert and the upper mold body, and the punching drive rod and the trimming drive rod are both provided with an inclined push block for driving the inclined slider, and the inclined push block drives the inclined slider through the abutment of the inclined surface.

[0012] Preferably, arcuate protrusions are provided at the ends of the punching drive rod and the trimming drive rod, and the punching drive rod is docked with the first cam through the arcuate protrusions, and the trimming drive rod is docked with the second cam through the arcuate protrusions.

[0013] Preferably, an extension portion is extended below the ends of the punching drive rod and the trimming drive rod, the third spring is arranged between the extension portion of the punching drive rod and the outer wall of the upper mold body, and the fourth spring is arranged between the extension portion of the trimming drive rod and the outer wall of the upper mold body.

[0014] Preferably, the guide feed insert, lower corrugated insert, lower trimming insert, punching part, upper corrugated insert, punching insert and upper trimming insert are all arranged in a double-station structure, and the guide feed insert, lower corrugated insert, lower trimming insert, punching part, upper corrugated insert, punching insert and upper trimming insert are each arranged in at least two groups, so that at least four material strips can be processed simultaneously between the upper mold body and the lower mold body, the punching drive rod transversely connects all the punching inserts, and the trimming drive rod transversely connects all the upper trimming inserts.

[0015] Preferably, a step-by-step pushing mechanism is also provided between the upper mold body and the lower mold body, and the step-by-step pushing mechanism is docked between the lower corrugated insert and the lower trimming insert, the step-by-step pushing mechanism includes a transverse sliding seat, a longitudinal sliding groove, a material strip pushing block and a material guide support, the transverse sliding seat is slidably connected to the lower mold body, and a sixth spring is provided between the transverse sliding seat and the lower mold body for pushing the transverse sliding seat to move to one side of the lower trimming insert, a reset push rod for driving the transverse sliding seat to overcome the sixth spring is connected to the upper mold body, the longitudinal sliding groove is provided on the transverse sliding seat, the material strip pushing block is slidably connected to the longitudinal sliding groove, and between the material strip pushing block and the longitudinal sliding A seventh spring is connected between the grooves to drive the material strip pushing block to move upward, the material guide support is longitudinally slidably connected to the lower mold body, and an eighth spring is connected between the material guide support and the lower mold body to drive the material guide support to move upward, the material guide support has a transverse channel docked on the material strip pushing block, the transverse channel is used to pass the material strip between the lower corrugated insert and the lower trimming insert, the material strip pushing block can extend into the transverse channel along the lower end of the transverse channel to clamp the material strip; wherein, a delay is formed between the reset push rod and the upper mold body through a movable connection, and the upper mold body is provided with a step structure, the step structure has a lower point against the material strip pushing block and a higher point against the transverse channel.

[0016] Preferably, the step-by-step material pushing mechanism is configured such that during the mold closing process, the upper mold body first pushes the material strip pushing block through the lower point of the step structure, so that the material strip pushing block overcomes the elastic force of the seventh spring and moves downward to the inside of the transverse channel, and then the higher point of the step structure intervenes to push the transverse channel, so that the transverse channel overcomes the elastic force of the eighth spring and moves downward, while the material strip pushing block continues to overcome the elastic force of the seventh spring and moves downward synchronously with the transverse channel. In the process of the material strip pushing block and the transverse channel moving downward synchronously, the reset push rod ends the delay and pushes the transverse sliding seat, so that the transverse sliding seat drives the material strip pushing block to move along the direction of the lower corrugated insert by a distance of at least one corrugation; The step-by-step pushing mechanism is configured so that during the mold opening process, the step structure of the upper mold body gradually separates from the material strip pushing block and the transverse channel, so that after the seventh spring pushes the material strip pushing block into the transverse channel, the reset push rod ends the delay and separates from the transverse sliding seat, and the transverse sliding seat drives the material strip pushing block to move at least a corrugation distance along the direction of the lower trimming insert through the sixth spring.

[0017] Compared with the prior art, the present invention has the following beneficial effects: A mechanism for transmission is provided on the outer sides of the upper mold body and the lower mold body according to the mold opening action. The mechanism utilizes the first swing arm and the second swing arm to drive the cam rod to rotate during the mold opening process, and utilizes the idle running of the ratchet and the pawl to keep the cam rod stationary during the mold closing process, so that the mold opening action of the upper mold body and the lower mold body can be utilized to rotate the first cam and the second cam on the cam rod. Through this arrangement, a continuous stamping method can be utilized, that is, multiple stampings can be performed on the step-by-step moving material strip, and the rotation angles of the first cam and the second cam can be controlled during the multiple stamping processes, and the first cam can be used to drive the punching insert in one or more times. During several stamping processes, the punching insert is docked with the punching part, so that during multiple stamping processes, the punching insert is controlled by the first cam to punch out multiple openings on the corrugated knife, and during the last stamping process, the upper trimming insert is controlled by the second cam to cut the stamped corrugated knife from the material strip; through this setting, the number of openings and the position of the openings on the corrugated knife can be controlled by replacing the first cam with different structures, and the length of the corrugated knife can be controlled by replacing or adjusting the length of the first swing arm or the second swing arm, so that the manufacturer can process corrugated knives with different lengths and different numbers of openings through the mold; Based on the step-by-step movement of the material strip, a step-by-step pushing mechanism is arranged in the mold, which utilizes the mold opening action of the upper mold body and the lower mold body to achieve the purpose of pushing the material strip to move at least a distance of the corrugated structure, and utilizes the mold closing action to achieve the purpose of resetting the step-by-step pushing mechanism. The step-by-step pushing mechanism utilizes a transverse channel to pass through the material strip that has been stamped, and then a material strip pushing block is arranged according to the corrugated structure to extend into the transverse channel to hold up the material strip, and then a reset push rod with delayed mold opening is utilized, so that during the mold opening process, a spring is first utilized to enable the material strip pushing block to hold up the material strip first, and then the reset push rod is pulled out to enable the transverse sliding seat to be moved by the sixth spring The spring drives the material belt to move forward a distance of at least one corrugated structure; while the reset push rod is still delayed in the mold closing state, the upper mold body is used to drive the material belt push block downward to disengage from the transverse channel, and then the transverse sliding seat is reset by the reset push rod, so that the material belt push block is disengaged from the transverse channel and the material belt and then reset. Through this structure, after each mold opening and closing action, the material belt can be driven to move a distance of at least one corrugated structure, thereby eliminating the need for an external feeding mechanism, so that the mold can realize fully automated operations of feeding, pressing, punching and trimming, so that the corrugated knife with holes can be directly processed and formed through a mold.

[0018] In summary, with the help of the unique mechanism that realizes transmission based on the mold opening action on the outer side of the upper mold body and the lower mold body, the first swing arm and the second swing arm are used to drive the cam rod to rotate, and the ratchet and the pawl are used to accurately control the rotation angle of the first cam and the second cam during continuous stamping. Not only can holes of different numbers and positions be punched out on the corrugated knife as needed, but the formed corrugated knife can also be accurately cut off at the end; only by replacing the first cam and adjusting the length of the swing arm, corrugated knives of different lengths and different numbers of openings can be easily manufactured, greatly enhancing the adaptability of the mold to various orders. Furthermore, the stepping pusher mechanism in the mold uses the mold opening and closing actions to cleverly realize the automatic stepping movement of the material belt, without the need for an external feeding mechanism, to achieve full automation of feeding, pressing, punching, and trimming. While improving production efficiency, it reduces equipment investment and production link connection costs, allowing the corrugated knife with holes to go from raw materials to finished products in one step, significantly improving overall production efficiency and product processing accuracy.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the structure of the components arranged on the side of the upper mold body and the lower mold body in the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the punching drive rod of the present invention driving the punching insert to achieve punching, that is, a partial enlarged schematic diagram of the dotted circle; Figure 4 It is a schematic diagram of the cross-sectional structure of the punching drive rod of the present invention withdrawing the punching insert to achieve non-punching, that is, a partial enlarged schematic diagram of the dotted circle; Figure 5 It is a schematic diagram of the cross-sectional structure of the trimming driving rod of the present invention driving the upper trimming insert to achieve trimming, that is, a partial enlarged schematic diagram of the dotted circle; Figure 6 It is a schematic diagram of the cross-sectional structure of the trimming driving rod of the present invention retreating the upper trimming insert to achieve non-trimming, that is, a partial enlarged schematic diagram of the dotted circle; Figure 7 It is a schematic diagram of the cross-sectional structure of the reset push rod in the mold closing state of the present invention; Figure 8 It is a schematic diagram of the cross-sectional structure of the present invention in a mold closing state; Fig. 9 The present invention Figure 8 The structural diagram at A in the middle; Fig.10 It is a schematic diagram of the cross-sectional structure of the present invention in the mold opening state; Fig.11 It is a schematic diagram of the cross-sectional structure of the stepping material pushing mechanism in the mold closing state of the present invention, that is, a partially enlarged schematic diagram of the dotted circle thereof; Fig.12 It is a schematic diagram of the cross-sectional structure of the stepping material pushing mechanism in the mold opening state of the present invention, that is, a partially enlarged schematic diagram of its dotted circle.

[0022] The reference numerals and names in the figures are as follows: Upper die body 10, step structure 101, upper corrugated insert 11, punching insert 12, first spring 121, upper trimming insert 13, second spring 131, punching drive rod 14, third spring 141, arc surface protrusion 142, extension 143, trimming drive rod 15, fourth spring 151, cam rod 16, first cam 161, second cam 162, ratchet 163, first protrusion 164, second protrusion 165, first swing arm 166, pawl 167, second swing arm 168, lower die body 20, guide feed insert 21, fifth spring 211, lower corrugated insert 22, lower trimming insert 23, punching part 24, transverse sliding seat 31, sixth spring 311, reset push rod 312, longitudinal slide groove 32, material strip push block 33, seventh spring 331, material guide support 34, eighth spring 341, transverse channel 342. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] [Example 1] See also Figure 1-12 A fully automated punching die with a corrugated knife having holes, comprising an upper die body 10 and a lower die body 20 for punching a material strip, wherein the material strip is conveyed step by step by an external feeding mechanism, and a guide feed insert 21, a lower corrugated insert 22 and a lower trimming insert 23 are sequentially arranged from the upper end of the lower die body 20 to the front and back, and a punching portion 24 is arranged on the lower corrugated insert 22; The lower end of the upper die body 10 is connected with an upper corrugated insert 11 corresponding to the lower corrugated insert 22, a punching insert 12 corresponding to the punching portion 24, and an upper trimming insert 13 corresponding to the lower trimming insert 23. The interior of the upper die body 10 is provided with a first spring 121 acting on the punching insert 12 and a second spring 131 acting on the upper trimming insert 13. In the mold closing state, the upper corrugated insert 11 is butted with the lower corrugated insert 22, the punching insert 12 is butted with the punching portion 24 by overcoming the elastic force of the first spring 121, and the upper trimming insert 13 is butted with the second spring 131 by overcoming the elastic force of the second spring 131. The upper die body 10 is also movably connected with a punching drive rod 14 and a trimming drive rod 15 extending from the side of the upper die body 10, and the upper die body 10 is also provided with a third spring 141 acting on the punching drive rod 14 and a fourth spring 151 acting on the trimming drive rod 15. The punching drive rod 14 drives the punching insert 12 to overcome the elastic force of the first spring 121 by overcoming the elastic force of the third spring 141, and the trimming drive rod 15 drives the lower trimming insert 23 to overcome the elastic force of the second spring 131 by overcoming the elastic force of the fourth spring 151. The side of the upper mold body 10 is also rotatably connected to a cam rod 16, on which a first cam 161 docked with the punching drive rod 14, a second cam 162 docked with the trimming drive rod 15, and a ratchet 163 for driving the cam rod 16 to rotate are provided, the first cam 161 is provided with at least one first protrusion 164 that pushes the punching drive rod 14, the second cam 162 is provided with a second protrusion 165 that pushes the trimming drive rod 15, a first swing arm 166 is rotatably connected to the ratchet 163, and the first swing arm 166 is provided with a pawl 167 that acts on the ratchet 163, the first swing arm 166 is rotatably connected to the second swing arm 168, and the second swing arm 168 is rotatably connected to the side of the lower mold body 20; Among them, the first swing arm 166 and the second swing arm 168 are driven to swing through the mold opening action, so that the pawl 167 drives the ratchet 163 to rotate, and the first protrusion 164 pushes the punching drive rod 14 or disengages from the punching drive rod 14 through the rotation of the ratchet 163, and the second protrusion 165 pushes the trimming drive rod 15 or disengages from the trimming drive rod 15 through the rotation of the ratchet 163.

[0025] In the above technical scheme, by setting the upper corrugated insert 11 and the lower corrugated insert 22, the material strip between the two can be punched into a corrugated structure by the stamping connection between the two, and further setting the punching part 24 and the punching insert 12, so that while the corrugated shape is being punched, holes are also punched out on the material strip with the corrugated structure, and finally the stamped material strip is cut by the punching cooperation of the lower trimming insert 23 and the upper trimming insert 13 to form a corrugated knife with a hole structure; during the stamping process, it uses a step-by-step feeding method, so that each time it is stamped, the material strip moves stepwise by a distance of at least one corrugated structure, so that the number of corrugated structures on the corrugated knife and the length of the corrugated knife can be controlled by multiple stamping actions, and the cam rod 16 is combined with the structure of the ratchet 163 and the ratchet 167 to transmit and cooperate with the opening and closing actions of the mold, and the ratchet 167 is set according to the number of times each corrugated knife needs to be punched. The ratchet wheel 163 is driven to rotate at an angle such that the ratchet wheel 163 can rotate 360 ​​degrees after each corrugation knife completes punching, and before the last mold closing, the second cam 162 can rotate the second protrusion 165 to push the trimming drive rod 15, so that the upper trimming insert 13 is exposed below the upper mold body 10 to dock with the lower trimming insert 23, thereby cutting the material strip during the last mold closing; similarly, using this principle, a plurality of first protrusions 164 are arranged on the first cam 161, so that each time the mold completes a punching action, the first cam 161 will rotate a certain angle to drive the first protrusion 164 to push the punching drive rod 14 or disengage from the punching drive rod 14, so that the punching insert 12 can be controlled to extend out of the lower end of the upper mold body 10 or retract into the upper mold body 10 during the punching process, so as to control the number and position of the corrugation knife holes according to the number of first protrusions 164 arranged on the first cam 161; In other words, the upper die body 10 and the lower die body 20 are used to punch the step-by-step moving material strip N times to form a finished product, and the mold opening action drives the first swing arm 166 and the second swing arm 168 to swing so that the pawl 167 drives the ratchet 163 to rotate M degrees, and the first protrusion 164 pushes the punching drive rod 14 or disengages from the punching drive rod 14 through the M-degree rotation of the ratchet 163, and the second protrusion 165 pushes the trimming drive rod 15 or disengages from the trimming drive rod 15 through the M-degree rotation of the ratchet 163, and M is equal to 360 divided by N; For example, if setting a corrugated knife requires 10 punching cuts and holes need to be opened at 3 positions, then the swing angles of the first swing arm 166 and the second swing arm 168 can be set in advance according to the number of punching cuts, thereby controlling the rotation angle of the ratchet 163, that is, M is equal to 360 divided by 10, and the rotation angle of the ratchet 163 is 36 degrees, thereby controlling the ratchet 163 to be able to rotate one circle after 10 punching cuts, and setting the number and position of the first protrusions 164 on the first cam 161 according to the positions of the 3 holes on the corrugated knife, so that the mold can make a corrugated knife with 3 holes after 10 punching cuts, and basically only need to replace the first cam 161 and the second swing arm 168, or set the second swing arm 168 to a structure with adjustable length, so that it is only necessary to simply replace the first cam 161 and adjust the length of the second swing arm 168, so as to control the mold to punch out corrugated knives of different lengths and different numbers of holes.

[0026] See also Figure 8 and Fig.10 The present technical solution further proposes that a fifth spring 211 is connected between the guide feed insert 21 and the lower mold body 20, so that the guide feed insert 21 can be lifted up by the fifth spring 211 when the mold is opened, thereby lifting the material strip from the lower corrugated insert 22 to remain suspended; through this arrangement, the material strip can be propped up when the mold is opened, so that the material strip will not be stuck on the lower corrugated insert 22 and unable to move forward.

[0027] See also Figure 3-6 The technical solution further proposes that the punching insert 12 and the upper trimming insert 13 are both provided with an inclined slider (not shown) movably connected to the upper die body 10, the first spring 121 is connected between the inclined slider of the punching insert 12 and the upper die body 10, the second spring 131 is connected between the upper trimming insert 13 and the upper die body 10, the punching drive rod 14 and the trimming drive rod 15 are both provided with a (not shown) for driving the inclined slider, and the inclined push block drives the inclined slider through the abutment of the inclined surface. The purpose of converting the lateral power into the longitudinal power is achieved by utilizing the inclined surface cooperation of the inclined push block and the inclined slider, thereby controlling the longitudinal movement of the punching insert 12 and the upper trimming insert 13.

[0028] See also Figure 3-6The present technical solution further proposes that an arc-surface protrusion 142 is provided at the end of the punching drive rod 14 and the trimming drive rod 15, and the punching drive rod 14 is docked with the first cam 161 through the arc-surface protrusion 142, and the trimming drive rod 15 is docked with the second cam 162 through the arc-surface protrusion 142; the arc-surface protrusion 142 can make the cam and the drive rod cooperate more smoothly; an extension portion 143 is also extended below the end of the punching drive rod 14 and the trimming drive rod 15, the third spring 141 is arranged between the extension portion 143 of the punching drive rod 14 and the outer wall of the upper mold body 10, and the fourth spring 151 is arranged between the extension portion 143 of the trimming drive rod 15 and the outer wall of the upper mold body 10. The structural design is simple and convenient for the assembly and debugging of the punching drive rod 14 and the trimming drive rod 15.

[0029] See also Figure 3-12 The technical solution further proposes that the guide feed insert 21, the lower corrugated insert 22, the lower trimming insert 23, the punching part 24, the upper corrugated insert 11, the punching part 12 and the upper trimming insert 13 are all arranged in a double-station structure, and the guide feed insert 21, the lower corrugated insert 22, the lower trimming insert 23, the punching part 24, the upper corrugated insert 11, the punching insert 12 and the upper trimming insert 13 are all arranged in at least two groups, so that at least four material strips can be processed simultaneously between the upper mold body 10 and the lower mold body 20, the punching drive rod 14 is laterally connected to all the punching inserts 12, and the trimming drive rod 15 is laterally connected to all the upper trimming inserts 13. Through this arrangement, the purpose of punching out multiple pieces of corrugated knives with holes on one mold can be achieved, thereby improving the production efficiency of the mold.

[0030] [Example 2] See also Figure 1 and Fig.12Based on the technical solution of the above-mentioned embodiment 1, a step-by-step pushing mechanism is further arranged in the mold, that is, a step-by-step pushing mechanism is also arranged between the upper mold body 10 and the lower mold body 20, and the step-by-step pushing mechanism is docked between the lower corrugated insert 22 and the lower trimming insert 23, and the step-by-step pushing mechanism includes a transverse sliding seat 31, a longitudinal slide groove 32, a material strip pushing block 33 and a material guide support 34, the transverse sliding seat 31 is slidably connected to the lower mold body 20, and a sixth spring 311 is arranged between the transverse sliding seat 31 and the lower mold body 20 for pushing the transverse sliding seat 31 to move toward the side of the lower trimming insert 23, a reset push rod 312 is connected to the upper mold body 10 for driving the transverse sliding seat 31 to overcome the sixth spring 311, the longitudinal slide groove 32 is arranged on the transverse sliding seat 31, the material strip pushing block 33 is slidably connected to the longitudinal slide groove 32, and in A seventh spring 331 is connected between the material strip pushing block 33 and the longitudinal slide groove 32 to drive the material strip pushing block 33 to move upward, the material guide support 34 is longitudinally slidably connected to the lower mold body 20, and an eighth spring 341 is connected between the material guide support 34 and the lower mold body 20 to drive the material guide support 34 to move upward, the material guide support 34 has a transverse channel 342 docked on the material strip pushing block 33, the transverse channel 342 is used to pass the material strip between the lower corrugated insert 22 and the lower trimming insert 23, the material strip pushing block 33 can extend into the transverse channel 342 along the lower end of the transverse channel 342 to clamp the material strip; wherein, a delay is formed between the reset push rod 312 and the upper mold body 10 through a movable connection, and the upper mold body 10 is provided with a step structure 101, the step structure 101 has a lower point against the material strip pushing block 33 and a higher point against the transverse channel 342.

[0031] The mold opening action of the upper mold body 10 and the lower mold body 20 is used to move the material strip by at least one corrugated structure, and the mold closing action is used to reset the stepping material pushing mechanism. The stepping material pushing mechanism uses the transverse channel 342 to pass through the material strip that has been stamped, and then the material strip pushing block 33 is set according to the corrugated structure to extend into the transverse channel 342 to hold up the material strip, and then the reset push rod 312 of the mold opening delay is used, so that during the mold opening process, the spring is first used to make the material strip pushing block 33 hold the material strip first, and then the reset push rod 312 is pulled out to make the transverse sliding seat 31 driven by the sixth spring 311 to move forward at least one corrugated structure. The distance of the structure; and the reset push rod 312 is still delayed in the mold closing state. At this time, the upper mold body 10 is used to drive the material strip pushing block 33 to move downward out of the transverse channel 342, and then the transverse sliding seat 31 is reset by the reset push rod 312, so that the material strip pushing block 33 is separated from the transverse channel 342 and the material strip and then reset. Through this structure, after each mold opening and closing action, the material strip can be driven to move at least a distance of the corrugated structure, so that there is no need to rely on an external feeding mechanism, so that the mold can realize fully automated operations of feeding, pressing, punching and trimming, so that the corrugated knife with holes can be directly processed and formed through a mold.

[0032] In terms of setting, a limit hole of a certain length is set inside the upper mold body 10, so that the upper end of the limit push rod is restricted in the limit hole. When the mold is opened, the upper end of the limit push rod moves from the upper end of the limit hole to the lower end of the limit hole to achieve delay. When the mold is closed, the upper end of the limit push rod moves from the lower end of the limit hole to the upper end of the lower hole to achieve delay.

[0033] Specifically, the step-by-step pushing mechanism is configured such that during the mold closing process, the upper mold body 10 first pushes the material strip pushing block 33 through the lower point of the step structure 101, so that the material strip pushing block 33 overcomes the elastic force of the seventh spring 331 and moves downward to the inside of the transverse channel 342, and then the higher point of the step structure 101 intervenes to push the transverse channel 342, so that the transverse channel 342 overcomes the elastic force of the eighth spring 341 and moves downward, while the material strip pushing block 33 continues to overcome the elastic force of the seventh spring 331 and moves downward synchronously with the transverse channel 342. In the process of the material strip pushing block 33 and the transverse channel 342 moving downward synchronously, the reset push rod 312 ends the delay and pushes the transverse sliding seat 31, so that the transverse sliding seat 31 drives the material strip pushing block 33 to move along the direction of the lower corrugated insert 22 by a distance of at least one corrugation. The step-by-step pushing mechanism is configured so that during the mold opening process, the step structure 101 of the upper mold body 10 gradually separates from the material strip pushing block 33 and the transverse channel 342, so that the seventh spring 331 pushes the material strip pushing block 33 into the transverse channel 342, and then the reset push rod 312 ends the delay and separates from the transverse sliding seat 31. The transverse sliding seat 31 drives the material strip pushing block 33 to move a distance of at least one corrugation along the direction of the lower trimming insert 23 through the sixth spring 311.

[0034] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A fully automated punching die with a corrugated knife having holes, characterized in that: It comprises an upper die body (10) and a lower die body (20) for stamping and forming a material strip, wherein a guide feed insert (21), a lower corrugated insert (22) and a lower trimming insert (23) are sequentially arranged from the upper end of the lower die body (20) to the front and to the rear, and a punching portion (24) is arranged on the lower corrugated insert (22); The lower end of the upper mold body (10) is connected to an upper corrugated insert (11) corresponding to the lower corrugated insert (22), a punching insert (12) corresponding to the punching portion (24), and an upper trimming insert (13) corresponding to the lower trimming insert (23). A first spring (121) acting on the punching insert (12) and a second spring (131) acting on the upper trimming insert (13) are arranged inside the upper mold body (10). In the mold closing state, the upper corrugated insert (11) and the lower corrugated insert (22) are butted and matched. The punching insert (12) is butted to the punching portion (24) by overcoming the elastic force of the first spring (121), and the upper trimming insert (13) is butted to the punching portion (24) by overcoming the elastic force of the second spring (131). ) to dock with the lower trimming insert (23) by means of elastic force; the upper die body (10) is also movably connected with a punching drive rod (14) and a trimming drive rod (15) extending from the side of the upper die body (10), and the upper die body (10) is also provided with a third spring (141) acting on the punching drive rod (14) and a fourth spring (151) acting on the trimming drive rod (15); the punching drive rod (14) drives the punching insert (12) to overcome the elastic force of the first spring (121) by overcoming the elastic force of the third spring (141), and the trimming drive rod (15) drives the lower trimming insert (23) to overcome the elastic force of the second spring (131) by overcoming the elastic force of the fourth spring (151); The side of the upper mold body (10) is also rotatably connected to a cam rod (16), and the cam rod (16) is provided with a first cam (161) connected to the punching drive rod (14), a second cam (162) connected to the trimming drive rod (15), and a ratchet (163) for driving the cam rod (16) to rotate; the first cam (161) is provided with at least one first protrusion (164) for pushing the punching drive rod (14); the second cam (162) is provided with a second protrusion (165) for pushing the trimming drive rod (15); a first swing arm (166) is rotatably connected to the ratchet (163), and a ratchet pawl (167) for acting on the ratchet (163) is provided on the first swing arm (166); the first swing arm (166) is rotatably connected to a second swing arm (168), and the second swing arm (168) is rotatably connected to the side of the lower mold body (20); The first swing arm (166) and the second swing arm (168) are driven to swing by the mold opening action, so that the pawl (167) drives the ratchet (163) to rotate, and the first protrusion (164) pushes the punching drive rod (14) or disengages from the punching drive rod (14) through the rotation of the ratchet (163), and the second protrusion (165) pushes the trimming drive rod (15) or disengages from the trimming drive rod (15) through the rotation of the ratchet (163).

2. A fully automated punching die with a corrugated knife having holes according to claim 1, characterized in that: The upper mold body (10) and the lower mold body (20) are used to punch the step-by-step moving material strip N times to form a finished product. The mold opening action drives the first swing arm (166) and the second swing arm (168) to swing so that the pawl (167) drives the ratchet (163) to rotate M degrees. The first protrusion (164) pushes the punching drive rod (14) or disengages from the punching drive rod (14) through the M-degree rotation of the ratchet (163). The second protrusion (165) pushes the trimming drive rod (15) or disengages from the trimming drive rod (15) through the M-degree rotation of the ratchet (163), and M is equal to 360 divided by N.

3. A fully automated punching die with a corrugated knife with holes according to claim 1, characterized in that: A fifth spring (211) is connected between the guide feed insert (21) and the lower mold body (20) so that the guide feed insert (21) can be lifted up by the fifth spring (211) when the mold is opened, thereby lifting the material strip from the lower corrugated insert (22) to remain suspended.

4. A fully automated punching die with a corrugated knife having holes according to claim 1, characterized in that: The punching insert (12) and the upper trimming insert (13) are both provided with an inclined slider movably connected to the upper die body (10); a first spring (121) is connected between the inclined slider of the punching insert (12) and the upper die body (10); a second spring (131) is connected between the upper trimming insert (13) and the upper die body (10); and the punching drive rod (14) and the trimming drive rod (15) are both provided with an inclined push block for driving the inclined slider, and the inclined push block drives the inclined slider by abutting the inclined surface.

5. The fully automated punching die with perforated corrugated knife according to claim 1, characterized in that: The ends of the punching drive rod (14) and the trimming drive rod (15) are both provided with arc-surface protrusions (142); the punching drive rod (14) is butt-jointed with the first cam (161) via the arc-surface protrusions (142); and the trimming drive rod (15) is butt-jointed with the second cam (162) via the arc-surface protrusions (142).

6. A fully automated punching die with a corrugated knife having holes according to claim 5, characterized in that: An extension portion (143) is also extended below the ends of the punching drive rod (14) and the trimming drive rod (15); a third spring (141) is arranged between the extension portion (143) of the punching drive rod (14) and the outer wall of the upper mold body (10); and a fourth spring (151) is arranged between the extension portion (143) of the trimming drive rod (15) and the outer wall of the upper mold body (10).

7. A fully automated punching die with a corrugated knife having holes according to claim 1, characterized in that: The guide feed insert (21), the lower corrugated insert (22), the lower trimming insert (23), the punching portion (24), the upper corrugated insert (11), the punching insert (12) and the upper trimming insert (13) are all arranged in a double-station structure, and the guide feed insert (21), the lower corrugated insert (22), the lower trimming insert (23), the punching portion (24), the upper corrugated insert (11), the punching insert (12) and the upper trimming insert (13) are all arranged in at least two groups, so that at least four material strips can be processed simultaneously between the upper mold body (10) and the lower mold body (20), and the punching drive rod (14) is laterally connected to all the punching inserts (12), and the trimming drive rod (15) is laterally connected to all the upper trimming inserts (13).

8. The fully automated punching die with perforated corrugated knife according to claim 1, characterized in that: A step-by-step material pushing mechanism is also provided between the upper die body (10) and the lower die body (20), and the step-by-step material pushing mechanism is docked between the lower corrugated insert (22) and the lower trimming insert (23). The step-by-step material pushing mechanism comprises a transverse sliding seat (31), a longitudinal sliding groove (32), a material strip pushing block (33) and a material guide support (34). The transverse sliding seat (31) is slidably connected to the lower die body (20), and a material guide support (34) is provided between the transverse sliding seat (31) and the lower die body (20). A sixth spring (311) is provided for pushing the transverse sliding seat (31) to move toward one side of the lower trimming insert (23); a reset push rod (312) is connected to the upper mold body (10) for driving the transverse sliding seat (31) to overcome the sixth spring (311); a longitudinal slide groove (32) is provided on the transverse sliding seat (31); a material strip pushing block (33) is slidably connected to the longitudinal slide groove (32); and a connection is provided between the material strip pushing block (33) and the longitudinal slide groove (32). A seventh spring (331) is connected to drive the material strip pushing block (33) to move upward, the material guide support (34) is longitudinally slidably connected to the lower mold body (20), and an eighth spring (341) is connected between the material guide support (34) and the lower mold body (20) to drive the material guide support (34) to move upward, and the material guide support (34) has a transverse channel (342) docked on the material strip pushing block (33), and the transverse channel (342) is used to pass through the lower corrugated insert (22) and the lower cutting The material strip between the edge panels (23), the material strip push block (33) can extend into the transverse channel (342) along the lower end of the transverse channel (342) to clamp the material strip; wherein a delay is formed between the reset push rod (312) and the upper mold body (10) through a movable connection, and the upper mold body (10) is provided with a step structure (101), and the step structure (101) has a lower point against the material strip push block (33) and a higher point against the transverse channel (342).

9. A fully automated punching die with a corrugated knife having holes according to claim 8, characterized in that: The step-by-step pushing mechanism is configured such that during the mold closing process, the upper mold body (10) first pushes the material strip pushing block (33) through the lower point of the step structure (101), so that the material strip pushing block (33) overcomes the elastic force of the seventh spring (331) and moves downward to the inside of the transverse channel (342), and then the higher point of the step structure (101) intervenes to push the transverse channel (342), so that the transverse channel (342) overcomes the elastic force of the eighth spring (341) and moves downward, while the material strip pushing block (33) continues to overcome the elastic force of the seventh spring (331) and moves synchronously with the transverse channel (342). During the synchronous downward movement of the material strip pushing block (33) and the transverse channel (342), the reset push rod (312) ends the delay and pushes the transverse sliding seat (31), so that the transverse sliding seat (31) drives the material strip pushing block (33) to move along the direction of the lower corrugated insert (22) by a distance of at least one corrugation. The step-by-step pushing mechanism is configured such that during the mold opening process, the step structure (101) of the upper mold body (10) gradually separates from the material strip pushing block (33) and the transverse channel (342), so that the seventh spring (331) pushes the material strip pushing block (33) to extend into the transverse channel (342), and then the reset push rod (312) ends the delay and separates from the transverse sliding seat (31), and the transverse sliding seat (31) drives the material strip pushing block (33) to move a distance of at least one corrugation along the direction of the lower trimming insert (23) via the sixth spring (311).

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