Cutting device for gold foil processing

Abstract

The invention relates to the technical field of cutting equipment, in particular to a gold foil processing and cutting device which comprises a rack, a cushion block and a cutting head, an adsorption hole is formed in the upper end face of the cushion block so that a gold leaf can be tightly attached and fixed to the upper end face of the cushion block, and a transverse cutting groove and a longitudinal cutting groove which are perpendicularly distributed in a crossed mode are formed in the upper end face of the cushion block; the multiple transverse cutting grooves and the multiple longitudinal cutting grooves are formed, cutting heads capable of ascending and descending are arranged on the portion, above the cushion block, of the rack, the cutting heads are used for cutting the golden leaves placed on the cushion block along the transverse cutting grooves and the longitudinal cutting grooves, and a row of transverse puncture needles are inserted into each transverse cutting groove in a penetrating mode. A row of longitudinal puncture needles are inserted into each longitudinal cutting groove in a penetrating mode, and a row of transverse penetrating holes and a row of longitudinal penetrating holes are formed in the golden leaves in a puncturing mode through the transverse puncture needles and the longitudinal puncture needles before the golden leaves are cut by the cutting knife. The technical problem that in the prior art, rhodomyrtus tomentosa is manually cut into rhodomyrtus tomentosa, and the size of rhodomyrtus tomentosa is not uniform is solved.

Description

Technical Field

[0001] The invention relates to the technical field of cutting equipment, and in particular to a gold foil processing and cutting device. Background Art

[0002] In the gold foil production process, gold, silver and copper metal raw materials are first melted and mixed in a set ratio to form gold foil materials, and then the gold foil materials with the right ratio are rolled into thin sheets of a certain thickness, and the thin sheets are cut into 4cm square gold leaves, and every 120 pieces of gold leaves are a work. Then use a thin bamboo knife to cut the 4cm square gold leaves into 1cm square small pieces, called gold twists. Each gold leaf can be cut into 16 gold twists, and then each piece of gold twist is sandwiched between two pieces of black gold paper, and the black gold paper is frequently beaten until the gold twist is beaten into gold foil.

[0003] In the prior art, manual cutting is often used in the process of cutting 4 cm square gold leaves into 1 cm square gold twists. The manual cutting method is prone to uneven sizes of the cut gold twists, so that the gold foil formed by subsequent hammering of the gold twists is also uneven. Manual cutting will also increase the breakage rate. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the present invention proposes a gold foil processing and cutting device to solve the technical problem that the prior art uses manual cutting of gold leaves into gold twists, which easily results in uneven sizes of the gold twists.

[0005] A gold foil processing and cutting device of the present invention adopts the following technical solution: A gold foil processing and cutting device comprises a frame, wherein the frame is provided with a pad for placing gold leaves, the upper end surface of the pad is provided with a plurality of adsorption holes, the adsorption holes are used to downwardly adsorb the gold leaves placed on the pad so as to tightly fix the gold leaves on the upper end surface of the pad, the upper end surface of the pad is provided with vertically cross-distributed transverse cutting grooves and longitudinal cutting grooves, the transverse cutting grooves and the longitudinal cutting grooves are respectively provided with a plurality of grooves, the frame is provided with a lifting and lowering cutting head above the pad, the cutting head is used to cut the gold leaves placed on the pad along the transverse cutting grooves and the longitudinal cutting grooves, each of the transverse cutting grooves is respectively interspersed with a row of transverse puncture needles, and each of the longitudinal cutting grooves is respectively interspersed with a row of longitudinal puncture needles, the transverse puncture needles and the longitudinal puncture needles puncture a row of transverse holes and longitudinal holes on the gold leaves before the cutting knife cuts the gold leaves.

[0006] Furthermore, the upper end surface of the cushion block is a square that matches the size of the gold leaf, three transverse cutting grooves are arranged in parallel, and three longitudinal cutting grooves are arranged in parallel. The three transverse cutting grooves and the three longitudinal cutting grooves divide the upper end surface of the cushion block into N squares. The side length of the gold leaf is a, and N=a2 Each square is provided with a plurality of the adsorption holes, each of the transverse cutting groove and the longitudinal cutting groove is provided with a row of needle holes, and the transverse puncture needle and the longitudinal puncture needle are respectively inserted into the corresponding needle holes.

[0007] Furthermore, the cutting head includes a tool holder and three cutting knives arranged in parallel and spaced relation at the lower side of the tool holder. The tool holder is rotatably arranged on a frame, and the rotation axis of the tool holder extends in the up-down direction. In an initial state, the three cutting knives correspond one-to-one with the three transverse cutting grooves in the up-down direction respectively. When cutting the gold leaves on the pad, the cutting knives first cut the gold leaves into four gold bars in the direction of the transverse cutting grooves, and then the tool holder rotates to drive the three cutting knives to correspond one-to-one with the three longitudinal cutting grooves in the up-down direction respectively. The three cutting knives cut the four gold bars into sixteen gold twists along the longitudinal cutting grooves.

[0008] Furthermore, three cutting knives are respectively floatingly arranged on the lower side of the knife holder, and a knife installation groove corresponding to the cutting knives is opened on the lower side of the knife holder, and the upper end of each cutting knife is movably inserted in the knife installation groove, and a rotating shaft is rotatably installed in each knife installation groove on the knife holder, and the rotating shaft is connected to a rotating drive mechanism, and a cam is respectively provided on the outer side of each rotating shaft. When the rotating drive mechanism drives the rotating shaft to rotate, the cam is used to push the cutting knife downward so that the cutting knife cuts the gold leaves on the pad downward, and a first tension spring is connected between the upper end of the cutting knife and the knife holder, and the first tension spring is used to drive the cutting knife to reset upward.

[0009] Furthermore, each cutting knife is composed of a plurality of knife blocks, the upper end of each knife block is connected to the knife holder with the first tension spring respectively, a plurality of cams are arranged on the rotating shaft along its own axis at intervals, and the plurality of cams are arranged one by one corresponding to the plurality of knife blocks, and the plurality of knife blocks of each cutting knife are respectively assembled together through connecting rods, and the two ends of each connecting rod are respectively slidably mounted on the knife holder up and down, and each connecting rod can rotate around its own axis; a sliding groove is respectively opened in each knife block, and the connecting rod is rotatably mounted in the sliding groove and can move up and down in the sliding groove, and the connecting rods are respectively The side walls are provided with limit blocks corresponding to each knife block respectively. The limit blocks are movably inserted into the side walls of the connecting rod along the radial direction of the connecting rod. A return spring is provided between the limit blocks and the connecting rod. A slot that cooperates with the limit blocks is opened on the side walls of the sliding groove. In the initial state, the limit block extends into the slot to prevent the connecting rod from moving up and down in the sliding groove. When the knife holder rotates to drive the three cutting knives to correspond to the longitudinal cutting grooves one by one in the up and down directions, the connecting rod rotates to make the limit block withdraw from the slot and retract into the connecting rod, so that the connecting rod can move up and down in the sliding groove.

[0010] Furthermore, the limit blocks are arranged in pairs, and each pair of limit blocks are symmetrically arranged on the radial sides of the connecting rod. The sliding groove of each knife block is provided with the slots on the opposite side walls respectively. The ends of each pair of limit blocks extending into the slots are respectively provided with guide arc surfaces. When the connecting rod rotates, the guide arc surfaces are pressed against the slot walls of the slots so that the limit blocks exit the slots and are pressed into the connecting rod.

[0011] Furthermore, the bottom surface of the tool mounting groove is a plane, and a plurality of arc grooves are provided on the bottom surface of the tool mounting groove and on both side walls spaced apart along the rotating shaft. The plurality of arc grooves are arranged one-to-one correspondingly to the cams on the rotating shaft, and the cams on the rotating shaft are respectively located in each arc groove.

[0012] Furthermore, the frame includes a bottom bracket and a gantry bracket fixed on the bottom bracket, the cutting head is rotatably mounted on the gantry bracket, the bottom bracket is provided with a first mounting groove, the pad is placed in the first mounting groove, a rotation drive mechanism is provided on the gantry bracket, a telescopic drive mechanism is connected to the upper side of the tool holder, the telescopic drive mechanism is connected to the rotation drive mechanism, the rotation drive mechanism is used to drive the telescopic drive mechanism and the tool holder to rotate, and the telescopic drive mechanism is used to drive the tool holder to rise and fall.

[0013] Furthermore, a plurality of negative pressure chambers are provided in the cushion block, and the negative pressure chambers are arranged one by one corresponding to the upper and lower sides of the square grid, and the upper ends of the negative pressure chambers are connected to the adsorption holes, and pistons are movably installed in each negative pressure chamber, and a first lifting mechanism that can be lifted and lowered in the up and down directions is provided on the frame, and a first lifting frame is connected to the upper end of the first lifting mechanism, and the piston is fixed on the upper side of the first lifting frame, and the first lifting frame drives the piston to move up and down synchronously.

[0014] Furthermore, the frame is also provided with a second lifting mechanism and a third lifting mechanism which are lifted and lowered in the up and down directions respectively, the upper end of the second lifting mechanism is connected to a second lifting frame, the upper end of the third lifting mechanism is connected to a third lifting frame, the transverse puncture needle is fixed on the second lifting frame, and the longitudinal puncture needle is fixed on the third lifting frame.

[0015] The beneficial effects of the present invention are as follows: a gold foil processing and cutting device of the present invention is provided with a pad and a cutting head on a frame, and the adsorption holes on the pad adsorb and fix the gold leaf on the pad, and then the cutting head is used to cut the gold leaf on the pad, so as to achieve mechanized cutting and ensure the uniformity of the cutting size. At the same time, the present invention uses a transverse puncture needle and a longitudinal puncture needle to pierce transverse holes and longitudinal holes on the gold leaf according to the cutting position before the cutting knife cuts the gold leaf, so that the cutting knife can more easily cut the gold leaf when cutting the gold leaf, and it is not easy to cause the problem of the gold leaf being torn off by the cutting knife.

[0016] Furthermore, the cutting knife on the cutting head is arranged in sections, and the multiple knife blocks are connected and separated independently through limit blocks in different cutting steps. In this way, when cutting the gold leaves for the first time, each cutting knife cuts as a whole, and when cutting the gold leaves for the second time, the knife blocks of each cutting knife are independent and cut the four gold bars after cutting independently. In this way, when the thickness of the gold bars is uneven, each knife block can cut the gold bars independently. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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 work. Those skilled in the art should understand that these drawings are not necessarily drawn to scale.

[0018] Figure 1 It is a three-dimensional schematic diagram of an embodiment of a gold foil processing and cutting device of the present invention; Figure 2 It is a front view of an embodiment of a gold foil processing and cutting device of the present invention; Figure 3 for Figure 2 Middle AA section view; Figure 4 It is an exploded schematic diagram of an embodiment of a gold foil processing and cutting device of the present invention; Figure 5 It is a schematic diagram of a cushion block in one embodiment of a gold foil processing and cutting device of the present invention; Figure 6 This is an exploded schematic diagram of a cutting head in one embodiment of a gold foil processing and cutting device of the present invention; Figure 7 This is a front view of a cutting head in one embodiment of a gold foil processing and cutting device of the present invention; Figure 8 for Figure 7 Middle BB section view; Fig. 9 for Figure 8 A magnified view of the local X in the figure.

[0019] In the figure: 100, frame; 101, first mounting groove; 110, third lifting mechanism; 120, second lifting mechanism; 130, first lifting mechanism; 140, first lifting frame; 200, rotating drive mechanism; 201, rotating frame; 300, telescopic drive mechanism; 400, cutting head; 410, tool holder; 411, guide groove; 412, arc groove; 413, tool mounting groove; 420, rotating shaft; 421, cam; 430, connecting rod; 431, rotating Rotating motor; 432, second tension spring; 433, limit block; 440, cutting knife; 441, first tension spring; 442, sliding groove; 443, slot; 445, knife block; 500, cushion block; 501, adsorption hole; 502, transverse cutting groove; 503, longitudinal needle hole; 504, transverse needle hole; 505, negative pressure chamber; 506, longitudinal cutting groove; 600, second lifting frame; 601, transverse puncture needle; 700, third lifting frame; 701, longitudinal puncture needle. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] An embodiment of a gold foil processing and cutting device of the present invention is as follows Figures 1 to 9 As shown, the gold foil processing and cutting device includes a frame 100, on which a cushion block 500 for placing gold foil is provided, and on which a cutting head 400 capable of being raised and lowered is provided above the cushion block 500. The frame 100 includes a bottom bracket and a gantry bracket fixed on the bottom bracket, and the cutting head 400 is rotatably mounted on the gantry bracket. A first mounting groove 101 is provided on the bottom bracket, and the cushion block 500 is placed in the first mounting groove 101. A rotating drive mechanism 200 is provided on the gantry bracket, and the rotating drive mechanism 200 is a rotating motor, and the output shaft of the rotating motor is connected to a rotating frame 201. The upper side of the cutting head 400 is connected to a telescopic driving mechanism 300, and the telescopic driving mechanism 300 is installed in a rotating frame 201. The telescopic driving mechanism 300 is connected to a rotating driving mechanism 200 through the rotating frame 201. The rotating driving mechanism 200 is used to drive the telescopic driving mechanism 300 and the cutting head 400 to rotate, and the telescopic driving mechanism 300 is used to drive the cutting head 400 to rise and fall.

[0022] The upper end surface of the pad 500 is provided with a plurality of adsorption holes 501, and the adsorption holes 501 are used to downwardly adsorb the gold leaf placed on the pad 500, so as to closely fix the gold leaf on the upper end surface of the pad 500. The upper end surface of the pad 500 is provided with transverse cutting grooves 502 and longitudinal cutting grooves 506 that are vertically cross-distributed, and the cutting head 400 is used to cut the gold leaf placed on the pad 500 along the transverse cutting grooves 502 and the longitudinal cutting grooves 506, respectively. In this embodiment, the upper end surface of the pad 500 is a square that matches the size of the gold leaf, and three transverse cutting grooves 502 are arranged in parallel and spaced apart, and three longitudinal cutting grooves 506 are also arranged in parallel and spaced apart. The three transverse cutting grooves 502 and the three longitudinal cutting grooves 506 divide the upper end surface of the pad 500 into N squares, and each square is provided with a plurality of adsorption holes 501. In this embodiment, the gold leaf to be cut is a 4 cm × 4 cm square, that is, the side length of the gold leaf is a = 4, each square on the pad 500 is a 1 cm × 1 cm square, N = a 2 , then N is 16. The cutting head 400 includes a tool holder 410 and three cutting knives 440 arranged at intervals in parallel at the lower side of the tool holder 410. The tool holder 410 is rotatably arranged on the frame 100, and the rotation axis 420 of the tool holder 410 extends in the up-down direction. In the initial state, the three cutting knives 440 correspond to the three transverse cutting grooves 502 in the up-down direction. When cutting the gold leaf on the cushion block 500, the cutting knives 440 first cut the gold leaf into four gold bars along the direction of the transverse cutting groove 502, and then the tool holder 410 rotates to drive the three cutting knives 440 to correspond to the three longitudinal cutting grooves 506 in the up-down direction, and the three cutting knives 440 cut the four gold bars into sixteen gold twists along the longitudinal cutting grooves 506.

[0023] In the present invention, each of the transverse cutting grooves 502 is respectively interspersed with a row of transverse puncture needles 601, and each of the longitudinal cutting grooves 506 is respectively interspersed with a row of longitudinal puncture needles 701. Each of the transverse cutting grooves 502 and the longitudinal cutting grooves 506 is respectively provided with a row of needle holes. The needle holes located in the transverse cutting grooves 502 are transverse needle holes 504, and the needle holes located in the longitudinal cutting grooves 506 are longitudinal needle holes 503. The transverse puncture needles 601 and the longitudinal puncture needles 701 are respectively interspersed in the transverse needle holes 504 and the longitudinal needle holes 503. In this embodiment, the cushion block 500 is formed by four square cylinders, each of which has four square grids on its upper end, and each of which has a half transverse pinhole 504 and a half longitudinal pinhole 503 on its outer circumference. After the four square cylinders are joined together, the half transverse pinhole 504 and the half longitudinal pinhole 503 on the outer circumference of each square cylinder are joined together to form a complete transverse pinhole 504 and a complete longitudinal pinhole 503. The interior of each square cylinder has a complete transverse pinhole 504 and a longitudinal pinhole 503. The transverse puncture needle 601 and the longitudinal puncture needle 701 puncture a row of transverse holes and longitudinal holes on the gold leaf before the cutting knife 440 cuts the gold leaf. The present invention uses the transverse puncture needle 601 and the longitudinal puncture needle 701 to puncture transverse holes and longitudinal holes on the gold leaf according to the cutting position before the cutting knife 440 cuts the gold leaf. In this way, the cutting knife 440 can cut the gold leaf more easily when cutting the gold leaf again, and the problem of the gold leaf being torn off by the cutting knife 440 is not likely to occur.

[0024] In this embodiment, three cutting knives 440 are respectively arranged floatingly on the lower side of the knife holder 410, and the lower side of the knife holder 410 is provided with a knife installation groove 413 corresponding to the cutting knives 440, and the upper end of each cutting knives 440 is respectively movably inserted in the knife installation groove 413, and the knife holder 410 is respectively provided with a rotating shaft 420 in each knife installation groove 413, and the rotating shaft 420 is connected with a rotating driving mechanism, and the rotating driving mechanism is a motor. Cams 421 are respectively arranged on the outer side of each rotating shaft 420, and when the rotating driving mechanism drives the rotating shaft 420 to rotate, the cams 421 are used to push the cutting knives 440 downward, so that the cutting knives 440 cut the gold leaves on the cushion block 500 downward, and a first tension spring 441 is connected between the upper end of the cutting knives 440 and the knife holder 410, and the first tension spring 441 is used to drive the cutting knives 440 to reset upward.

[0025] In this embodiment, each cutting knife 440 is composed of a plurality of knife blocks 445. Specifically, each cutting knife 440 includes four knife blocks 445. The upper end of each knife block 445 is connected to the knife holder 410 with the first tension spring 441. Four cams 421 are arranged at intervals along the axis of the rotating shaft 420. The four cams 421 are arranged one-to-one with the four knife blocks 445. In this embodiment, the bottom surface of the tool installation groove 413 is a plane. The upper end of the first tension spring 441 is connected to the bottom surface of the tool installation groove 413. A plurality of arc grooves 412 are arranged at intervals along the rotating shaft 420 on the groove bottom surface and the two side walls. The plurality of arc grooves 412 are arranged one-to-one with the cams 421 on the rotating shaft 420. The cams 421 on the rotating shaft 420 are respectively located in each arc groove 412.

[0026] In this embodiment, the four blade blocks 445 of each cutting blade 440 are respectively assembled together through the connecting rod 430, and the two ends of each connecting rod 430 are respectively slidably mounted on the blade holder 410, and each connecting rod 430 can rotate around its own axis, and one end of each connecting rod 430 is respectively connected to a rotating motor 431, and the rotating motor 431 is used to drive the connecting rod 430 to rotate. In this embodiment, the two ends of each connecting rod 430 are respectively connected to a square slider, and the two ends of the blade holder 410 are respectively provided with a guide groove 411 extending in the up-down direction, and the slider is respectively slidably mounted in the guide groove 411, and a second tension spring 432 is connected between the upper side of the slider and the blade holder 410, and the second tension spring 432 is used to drive the connecting rod 430 to move upward.

[0027] In this embodiment, a sliding groove 442 is respectively opened in each blade block 445 , and the connecting rod 430 is rotatably installed in the sliding groove 442 and can move up and down in the sliding groove 442 . A limit block 433 corresponding to each knife block 445 is provided on the side wall of each connecting rod 430, and the limit block 433 is movably inserted into the side wall of the connecting rod 430 along the radial direction of the connecting rod 430. A return spring is provided between the limit block 433 and the connecting rod 430 for pressing. A slot 443 is provided on the side wall of the sliding groove 442 to cooperate with the limit block 433. In the initial state, the limit block 433 extends into the slot 443 to prevent the connecting rod 430 from moving up and down in the sliding groove 442, and when the three cutting knives 440 first cut the gold leaves on the cushion block 500 along the transverse cutting groove 502, the limit block 433 extends into the slot 443. Under the restriction and connection of the limit block 433, the four knife blocks 445 of each cutting knife 440 are connected into a whole, and the four knife blocks 445 are used as a complete cutting knife 440, and move downward synchronously to cut the gold leaves. When the knife holder 410 rotates to drive the three cutting knives 440 to correspond one by one with the longitudinal cutting groove 506 in the up and down direction, the connecting rod 430 rotates to make the limit block 433 withdraw from the slot 443 and retract into the connecting rod 430, so that the connecting rod 430 can move up and down in the sliding groove 442. At this time, there is no restriction and connection effect of the limit block 433, and the four knife blocks 445 of each cutting knife 440 are independently opened. In this way, when the three cutting knives 440 cut four gold bars along the direction of the longitudinal cutting groove 506, the four knife blocks 445 separately cut the four separated gold bars. In this way, even if the thickness of each gold bar is inconsistent, since each gold bar corresponds to an independent knife block 445 one by one, they will not affect each other, and the mutual influence can be reduced.

[0028] In this embodiment, the limit blocks 433 are arranged in pairs, and each pair of limit blocks 433 is symmetrically arranged on the radial sides of the connecting rod 430. The sliding groove 442 of each knife block 445 has the slots 443 on the opposite side walls. The ends of each pair of limit blocks 433 extending into the slots 443 are respectively provided with guide arc surfaces. When the connecting rod 430 rotates, the guide arc surfaces are pressed against the slot walls of the slots 443 to allow the limit blocks 433 to exit the slots 443 and be pressed into the connecting rod 430.

[0029] In this embodiment, a plurality of negative pressure chambers 505 are provided in the cushion block 500, and the negative pressure chambers 505 are arranged one by one corresponding to the upper and lower squares respectively. The upper ends of the negative pressure chambers 505 are connected to the adsorption holes 501, and pistons are movably installed in each negative pressure chamber 505. The frame 100 is provided with a first lifting mechanism 130 that is lifted and lowered in the up and down directions. The upper end of the first lifting mechanism 130 is connected to a first lifting frame 140, and the piston is fixed on the upper side of the first lifting frame 140. The first lifting frame 140 drives the piston to move up and down synchronously. When the piston moves downward, negative pressure is generated in the negative pressure chamber 505, thereby adsorbing the gold leaves placed on the cushion block 500.

[0030] In this embodiment, the frame 100 is further provided with a second lifting mechanism 120 and a third lifting mechanism 110 which are lifted and lowered in the up and down directions respectively, the upper end of the second lifting mechanism 120 is connected to a second lifting frame 600, the upper end of the third lifting mechanism 110 is connected to a third lifting frame 700, the transverse puncture needle 601 is fixed on the second lifting frame 600, and the longitudinal puncture needle 701 is fixed on the third lifting frame 700. In this embodiment, the first lifting mechanism 130, the second lifting mechanism 120, the third lifting mechanism 110 and the telescopic drive mechanism 300 are all telescopic cylinders.

[0031] When the gold foil processing and cutting device of the present invention is used, a 4cm×4cm gold leaf is placed on the upper end surface of the cushion block 500, and the first lifting mechanism 130 is controlled to contract, and the first lifting frame 140 moves downward, and the negative pressure chamber 505 forms a negative pressure to adsorb and fix the gold leaf on the cushion block 500. Then the second lifting mechanism 120 and the third lifting mechanism 110 are controlled to extend, and the second lifting frame 600 and the third lifting frame 700 are controlled to move upward, so that the transverse puncture needle 601 and the longitudinal puncture needle 701 pierce the gold leaf upward in the transverse direction and the longitudinal direction respectively, so that the gold leaf forms a transverse perforation and a longitudinal perforation on the cutting line, which can reduce the difficulty of the cutting knife 440 when cutting, and then reduce the pulling deformation of the gold leaf at the edge when cutting. Then the second lifting mechanism 120 is controlled to contract, and the second lifting frame 600 moves downward, so that the transverse puncture needle 601 retracts downward into the cushion block 500, and the position of the third lifting frame 700 remains unchanged, so that the longitudinal puncture needle 701 still pierces the gold leaf.

[0032] Then the telescopic drive mechanism 300 is controlled to move the cutting head 400 downward to the designated position. At this time, the three cutting knives 440 on the cutting head 400 correspond to the horizontal cutting grooves 502 one by one, that is, the cutting knives 440 are parallel to the horizontal cutting grooves 502. Then the rotary drive mechanism is started to drive the rotating shaft 420 to rotate, so that the cam 421 pushes downward and moves downward. At this time, the limit block 433 on the connecting rod 430 in each cutting knife 440 is respectively inserted into the slot 443, as shown in FIG. Fig. 9In the state shown, the four blade blocks 445 of each cutting blade 440 form a whole. When the cutting blade 440 cuts the gold leaf downward, the longitudinal puncture needle 701 can limit the gold leaf, thereby preventing the gold leaf from slipping on the pad 500 during cutting.

[0033] After the first cutting is completed, the 4 cm square gold leaf is cut into four separated gold bars. Then the rotary drive mechanism rotates in the opposite direction, and under the action of the first tension spring 441 and the second tension spring 432, the cutting knife 440 is reset upward to the specified position. Then the rotary drive mechanism 200 is controlled to rotate, driving the cutting head 400 to rotate 90°. At this time, the three cutting knives 440 are respectively parallel to the longitudinal cutting groove 506, and then the third lifting mechanism 110 is controlled to shrink, so that the third lifting frame 700 moves downward, and the longitudinal puncture needle 701 is retracted downward into the cushion block 500; then the rotary motor 431 is controlled to rotate, driving the connecting rod 430 to rotate so that the limit block 433 exits the slot 443 and retracts into the connecting rod 430. At this time, the limit block 433 is separated from the slot 443 of the knife block 445, and the four knife blocks 445 are in a mutually independent state. Then the rotary drive mechanism is started again to rotate the rotating shaft 420, and the cam 421 pushes each knife block 445 downward to move downward. The four knife blocks 445 of each cutting knife 440 cut four gold bars respectively. When the thickness of the four gold bars is uneven, the gold bars can be cut independently.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A gold foil processing and cutting device, characterized in that: The invention comprises a frame (100), wherein a pad (500) for placing gold leaves is provided on the frame (100), a plurality of adsorption holes (501) are provided on the upper end surface of the pad (500), and the adsorption holes (501) are used to adsorb the gold leaves placed on the pad (500) downwards so as to fix the gold leaves tightly on the upper end surface of the pad (500), and the upper end surface of the pad (500) is provided with transverse cutting grooves (502) and longitudinal cutting grooves (506) distributed vertically and crosswise, and a plurality of the transverse cutting grooves (502) and the longitudinal cutting grooves (506) are provided respectively, and the frame (100) A lifting cutting head (400) is provided above the cushion block (500), and the cutting head (400) is used to cut the gold leaf placed on the cushion block (500) along the transverse cutting groove (502) and the longitudinal cutting groove (506). A row of transverse puncture needles (601) are inserted in each of the transverse cutting grooves (502), and a row of longitudinal puncture needles (701) are inserted in each of the longitudinal cutting grooves (506). The transverse puncture needles (601) and the longitudinal puncture needles (701) puncture a row of transverse holes and longitudinal holes on the gold leaf before the cutting knife (440) cuts the gold leaf.

2. The gold foil processing and cutting device according to claim 1, characterized in that: The upper end surface of the cushion block (500) is a square that matches the size of the gold leaf. Three transverse cutting grooves (502) are arranged in parallel and at intervals, and three longitudinal cutting grooves (506) are arranged in parallel and at intervals. The three transverse cutting grooves (502) and the three longitudinal cutting grooves (506) divide the upper end surface of the cushion block (500) into N square grids. The side length of the gold leaf is a, and N=a 2 A plurality of the adsorption holes (501) are respectively provided on each square, and a row of needle holes are respectively provided in each of the transverse cutting groove (502) and the longitudinal cutting groove (506), and the transverse puncture needle (601) and the longitudinal puncture needle (701) are respectively inserted into the corresponding needle holes.

3. The gold foil processing and cutting device according to claim 2, characterized in that: The cutting head (400) comprises a tool holder (410) and three cutting knives (440) arranged at intervals in parallel on the lower side of the tool holder (410); the tool holder (410) is rotatably arranged on the frame (100); the rotation axis (420) of the tool holder (410) extends in the up-down direction; in an initial state, the three cutting knives (440) correspond to the three transverse cutting grooves (502) in a one-to-one manner in the up-down direction; when cutting the gold leaf on the cushion block (500), the cutting knives (440) first cut the gold leaf into four gold bars in the direction of the transverse cutting grooves (502); then, the tool holder (410) rotates to drive the three cutting knives (440) to correspond to the three longitudinal cutting grooves (506) in a one-to-one manner in the up-down direction; the three cutting knives (440) cut the four gold bars into sixteen gold twists along the longitudinal cutting grooves (506).

4. The gold foil processing and cutting device according to claim 3, characterized in that: The three cutting knives (440) are respectively arranged in a floating manner on the lower side of the knife holder (410). The lower side of the knife holder (410) is provided with a knife installation groove (413) corresponding to the cutting knives (440). The upper end of each cutting knife (440) is respectively movably inserted into the knife installation groove (413). The knife holder (410) is provided with a rotating shaft (420) rotatably installed in each knife installation groove (413). The rotating shaft (420) is connected to a rotation driving mechanism. Cams (421) are respectively provided on the outer sides of the rotating shafts (420). When the rotating drive mechanism drives the rotating shafts (420) to rotate, the cams (421) are used to push the cutting knife (440) downward, so that the cutting knife (440) cuts the gold leaves on the cushion block (500) downward. A first tension spring (441) is connected between the upper end of the cutting knife (440) and the knife holder (410). The first tension spring (441) is used to drive the cutting knife (440) to reset upward.

5. The gold foil processing and cutting device according to claim 4, characterized in that: Each cutting knife (440) is composed of a plurality of knife blocks (445). The first tension spring (441) is connected between the upper end of each knife block (445) and the knife holder (410). A plurality of cams (421) are arranged at intervals along the axis of the rotating shaft (420). The plurality of cams (421) and the plurality of knife blocks (445) are arranged in a one-to-one correspondence. The plurality of knife blocks (445) of each cutting knife (440) are respectively assembled together through connecting rods (430). The two ends of each connecting rod (430) are respectively slidably mounted on the knife holder (410) up and down, and each connecting rod (430) can rotate around its own axis. A sliding groove (442) is respectively opened in each knife block (445). The connecting rod (430) is rotatably mounted in the sliding groove (442) and can move up and down in the sliding groove (442). The side walls of each connecting rod (430) are respectively provided with a plurality of cams (421). A limit block (433) corresponding to each blade block (445) is inserted on the side wall of the connecting rod (430) in a radially movable manner. A return spring is provided between the limit block (433) and the connecting rod (430) for pressing. A slot (443) for inserting and cooperating with the limit block (433) is provided on the side wall of the sliding groove (442). In the initial state, the limit block (433) is extended. The connecting rod (430) is inserted into the slot (443) to prevent the connecting rod (430) from moving up and down in the sliding slot (442). When the knife holder (410) rotates to drive the three cutting knives (440) to correspond to the longitudinal cutting slots (506) one by one in the up and down directions, the connecting rod (430) rotates to make the limit block (433) withdraw from the slot (443) and retract into the connecting rod (430), so that the connecting rod (430) can move up and down in the sliding slot (442).

6. The gold foil processing and cutting device according to claim 5, characterized in that: The limit blocks (433) are arranged in pairs, and each pair of limit blocks (433) is symmetrically arranged on two radial sides of the connecting rod (430). The sliding groove (442) of each blade block (445) is provided with a slot (443) on two opposite side walls. One end of each pair of limit blocks (433) extending into the slot (443) is provided with a guide arc surface. When the connecting rod (430) rotates, the guide arc surface is pressed against the slot wall of the slot (443) so that the limit block (433) exits the slot (443) and is pressed into the connecting rod (430).

7. The gold foil processing and cutting device according to claim 6, characterized in that: The bottom surface of the tool installation groove (413) is a plane, and a plurality of arc grooves (412) are arranged at intervals along the rotation shaft (420) on the bottom surface and two side walls of the tool installation groove (413). The plurality of arc grooves (412) are arranged in one-to-one correspondence with the cams (421) on the rotation shaft (420), and the cams (421) on the rotation shaft (420) are respectively located in each arc groove (412).

8. The gold foil processing and cutting device according to any one of claims 1 to 7, characterized in that: The frame (100) comprises a bottom bracket and a gantry bracket fixed on the bottom bracket, the cutting head (400) is rotatably mounted on the gantry bracket, the bottom bracket is provided with a first mounting groove (101), the cushion block (500) is placed in the first mounting groove (101), a rotation drive mechanism (200) is provided on the gantry bracket, a telescopic drive mechanism (300) is connected to the upper side of the tool holder (410), the telescopic drive mechanism (300) is connected to the rotation drive mechanism (200), the rotation drive mechanism (200) is used to drive the telescopic drive mechanism (300) and the tool holder (410) to rotate, and the telescopic drive mechanism (300) is used to drive the tool holder (410) to rise and fall.

9. The gold foil processing and cutting device according to any one of claims 2 to 7, characterized in that: The cushion block (500) is provided with a plurality of negative pressure chambers (505), the negative pressure chambers (505) are arranged one by one corresponding to the upper and lower sides of the square grid, the upper ends of the negative pressure chambers (505) are connected to the adsorption holes (501), and pistons are movably installed in each negative pressure chamber (505). The frame (100) is provided with a first lifting mechanism (130) that can be lifted up and down, and the upper end of the first lifting mechanism (130) is connected to a first lifting frame (140), and the pistons are fixed on the upper side of the first lifting frame (140), and the first lifting frame (140) drives the pistons to move up and down synchronously.

10. The gold foil processing and cutting device according to claim 9, characterized in that: The frame (100) is also provided with a second lifting mechanism (120) and a third lifting mechanism (110) which are lifted and lowered in the up and down directions respectively; the upper end of the second lifting mechanism (120) is connected to a second lifting frame (600); the upper end of the third lifting mechanism (110) is connected to a third lifting frame (700); the transverse puncture needle (601) is fixed to the second lifting frame (600); and the longitudinal puncture needle (701) is fixed to the third lifting frame (700).

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