An LED heat sink stamping device

Abstract

The present invention provides an LED heat sink stamping device, which relates to the technical field of stamping devices. It includes: a base, a hydraulic cylinder, and a stamping die. The hydraulic cylinder is arranged above the base, and the stamping die is arranged between the base and the hydraulic cylinder. The stamping die includes a lower die base, an upper die base, a female die, and a male die. The female die is fixedly installed on the top of the lower die base, and the male die is fixedly installed on the bottom of the upper die base. A square opening is formed in the female die, and a jacking and transferring mechanism is arranged in the square opening. Traction mechanisms are arranged on both sides of the female die. The jacking and transferring mechanism includes two fixed sliding rods, two moving blocks, two telescopic rods, and two transfer sheets. Both of the two fixed sliding rods are fixedly installed in the square opening. The LED heat sink stamping device provided by the present invention has the advantages that the heat sink after stamping can be automatically transferred to the conveyor belt, and the stability of product stamping and transfer can be improved, and it is economical, reliable and easy to use.

Description

Technical Field

[0001] The invention relates to the technical field of stamping equipment, and in particular to a stamping equipment for an LED heat sink. Background Art

[0002] LED generates a lot of heat during operation. If the heat cannot be dissipated in a timely and effective manner, the temperature of the LED chip will rise, which will affect its luminous efficiency, life and stability. Therefore, LED lamps with slightly higher power are often equipped with heat sinks. High-quality heat sinks can quickly conduct the heat generated by the LED and ensure that the LED works within a suitable temperature range. LED heat sinks are mostly stamped by stamping equipment. This is because the LED heat sinks stamped by the stamping die are accurate in size and high in precision, which is very important for the coordinated installation of LED heat sinks and other components, ensuring that the heat sink can be accurately installed on LED lamps and other equipment.

[0003] At present, industrial production is developing rapidly in the direction of automation and continuity. In the production process of LED heat sinks, after stamping, they are usually transported to the next process through a conveyor belt. However, the existing LED heat sink stamping equipment has obvious shortcomings and cannot automatically transfer the stamped heat sink to the conveyor belt. This leads to having to rely on manual operation or use a robot to pick up and transfer the heat sink. This method not only consumes a lot of manpower and increases labor costs, but the use of a robot will also increase the cost of equipment purchase and maintenance, which is not economical.

[0004] Therefore, it is necessary to provide a LED heat sink stamping device to solve the above technical problems. Summary of the invention

[0005] The technical problem solved by the present invention is to provide a device which can automatically transfer the heat sink after stamping to a conveyor belt by means of the power when the upper die seat rises, thereby avoiding excessive displacement of the LED heat sink during the transfer process, improving the stability of product stamping and transfer, and using economical and reliable LED heat sink stamping equipment.

[0006] In order to solve the above technical problems, the LED heat sink stamping equipment provided by the present invention includes: a base, a hydraulic cylinder and a stamping die, the hydraulic cylinder is arranged above the base, the stamping die is arranged between the base and the hydraulic cylinder, the stamping die includes a lower die base, an upper die base, a die and a punch, the die is fixedly installed on the top of the lower die base, the punch is fixedly installed on the bottom of the upper die base, a square opening is opened in the die, a lifting and transferring mechanism is arranged in the square opening, and traction mechanisms are arranged on both sides of the die;

[0007] The jacking and transferring mechanism includes two fixed sliding rods, two moving blocks, two telescopic rods and two transfer sheets. Both of the two fixed sliding rods are fixedly installed in the square opening. The two moving blocks are respectively sleeved on the two fixed sliding rods in a sliding manner. The same connecting rod is fixedly installed between the two moving blocks. The two telescopic rods are respectively fixedly installed on the tops of the two moving blocks. A first spring is sleeved on the fixed sliding rod. The top ends of the two telescopic rods are both fixedly installed with connecting rods. The two transfer sheets are respectively fixedly installed on the top ends of the two connecting rods. A second spring is sleeved on the telescopic rod. Outer connecting rods are fixedly installed on the outer walls of the two moving blocks on the sides away from each other.

[0008] Any one of the traction mechanisms includes a traction rope. One end of the traction rope is fixedly connected to the corresponding outer connecting rod, and the other end is fixedly connected to the bottom of the upper mold base.

[0009] Preferably, two avoidance strip openings are formed in the inner wall of the top of the square opening. Both of the two connecting rods penetrate through the corresponding avoidance strip openings and are movably connected to the inner walls on both sides of the corresponding avoidance strip openings.

[0010] Furthermore, the traction mechanism further includes a first reversing pulley, two second reversing pulleys and a tightrope member. The first reversing pulley and the two second reversing pulleys are both fixedly installed on the top of the lower mold base. The tightrope member is arranged at the bottom of the upper mold base. The traction rope bypasses the first reversing pulley, and the traction rope passes between the two second reversing pulleys. The tightrope member is used to keep the traction rope taut.

[0011] Preferably, the tightrope member includes a hanging plate, an outer sleeve, a hexagonal sliding rod, a third spring, a U-shaped member and a contact wheel. The hanging plate is fixedly installed at the bottom of the upper mold base. The outer sleeve is fixedly installed at the bottom of the hanging plate. The hexagonal sliding rod is slidably installed in the outer sleeve. The third spring is arranged in the outer sleeve. One end of the third spring is fixedly connected to the hanging plate, and the other end is fixedly connected to the hexagonal sliding rod. The U-shaped member is fixedly installed at the end of the hexagonal sliding rod away from the hanging plate. The contact wheel is rotatably installed in the U-shaped member. The traction rope is in contact with the contact wheel.

[0012] Further, side chutes are respectively formed on outer walls on two sides of the female mold and at positions above the square opening. A moving plate is slidably mounted in each of the two side chutes. A connecting arm is fixedly mounted at the bottom of the moving plate. The bottom end of the connecting arm is fixedly connected to the outer connecting rod. A plurality of L-shaped rods penetrate through and are slidably mounted on the moving plate. The same connecting plate is fixedly mounted at the bottom ends of the plurality of L-shaped rods. A retaining wheel is rotatably mounted at one end of each of the plurality of L-shaped rods away from the connecting plate. A fourth spring is sleeved on each L-shaped rod. One end of the fourth spring contacts the connecting plate, and the other end contacts the moving plate.

[0013] Preferably, a limiting ring is fixedly sleeved on the outer wall of the L-shaped rod, and the limiting ring contacts the top of the moving plate.

[0014] Further, an auxiliary transfer mechanism is further arranged on the top of the lower mold base. The auxiliary transfer mechanism includes a mounting frame, two rotating shafts, a rotating cylinder, a rubber sleeve and an electric motor. The mounting frame is fixedly mounted on the top of the lower mold base. The two rotating shafts are rotatably mounted on the mounting frame. The rotating cylinder is mounted between the two rotating shafts. The rubber sleeve is sleeved on the rotating cylinder. The electric motor is fixedly mounted on an outer wall on one side of the mounting frame. The output end of the electric motor is fixedly connected to one end of the corresponding rotating shaft away from the rotating cylinder.

[0015] Preferably, a plurality of anti-slip ridges are integrally formed on the outer wall of the rubber sleeve, and the plurality of anti-slip ridges are distributed in an annular array.

[0016] Further, U-shaped plates are respectively fixedly mounted at one ends of the two rotating shafts close to each other. Square docking heads are respectively fixedly mounted at two ends of the rotating cylinder. The two square docking heads are respectively located in the two U-shaped plates. Two first jacks are formed in the U-shaped plates. Two second jacks are formed in the square docking heads. Bolts penetrate through and are slidably mounted in the two first jacks. The two bolts respectively penetrate through the two second jacks and are slidably connected to inner walls of the corresponding second jacks. Card slots are formed in the two bolts. An end plate is fixedly mounted at one end of each of the two bolts. A locking member is arranged on an outer wall on one side of the U-shaped plate away from the end plate. The locking member is used for cooperating with the card slot to limit the bolt.

[0017] Preferably, the locking member includes a fixing piece, two limiting sliding rods, a limiting strip and two fifth springs. The fixing piece is fixedly installed on the outer wall of the U-shaped plate away from the end plate. The two limiting sliding rods penetrate and are slidably installed on the fixing piece. The limiting strip is fixedly installed at the tops of the two limiting sliding rods, and the limiting strip is located in the two clamping grooves. The two fifth springs are respectively sleeved on the two limiting sliding rods. One ends of the two fifth springs are in contact with the fixing piece, and the other ends are in contact with the limiting strip.

[0018] Compared with the related art, the LED heat sink stamping equipment provided by the present invention has the following beneficial effects:

[0019] The present invention provides an LED heat sink stamping equipment. Through the design of the jacking transfer mechanism and the traction mechanism, the jacking transfer mechanism includes a fixed sliding rod, a moving block, a telescopic rod, a transfer piece, a first spring and a second spring, and the traction mechanism includes a traction rope, a first reversing pulley, a second reversing pulley and a rope tightening member. During stamping, after being pressed by the punch, the transfer piece will enter the avoidance strip opening, and the second spring will be compressed. After stamping is completed, the second spring rebounds, and the transfer piece can jack up the LED heat sink to realize the function of automatically jacking up the LED heat sink after stamping, preparing for subsequent transfer. When the upper die base continues to move upward, the traction rope pulls the outer connecting rod, drives the moving block and the transfer piece to move forward, and transfers the jacked-up LED heat sink to the conveyor belt, realizing the automatic transfer function of the LED heat sink after stamping. This LED heat sink stamping equipment realizes the automatic movement of the LED heat sink to the conveyor belt by means of the upward movement of the upper die base, greatly improving the production efficiency, without manual intervention, without using a manipulator, and being relatively economical to use; when the upper die base presses down, the third spring will push the contact wheel forward, and the contact wheel will push the part of the traction rope in contact with it to move forward, so as to keep the traction rope taut and avoid the traction rope touching other components or raw material plates, having the advantage of reliable use;

[0020] The present invention provides an LED heat sink stamping equipment. Through the settings of the moving plate, the connecting arm, the L-shaped rod, the connecting plate, the blocking wheel and the fourth spring, when the punch rises after stamping is completed, the blocking wheel can block the LED heat sink from moving up with the punch, so that the LED heat sink is reliably located on the female die. When the transfer piece jacks up the LED heat sink, the blocking wheel will rise, compressing the fourth spring. The elastic force of the fourth spring acts on the LED heat sink through the blocking wheel, making the LED heat sink closely adhere to the transfer piece. During the process of transferring the LED heat sink, the blocking wheel moves synchronously with the transfer piece and the LED heat sink, so as to avoid the function of excessive displacement of the LED heat sink, having the advantages of improving the stability of product stamping and transfer and ensuring product quality, and further improving the reliability of the use of this LED heat sink stamping equipment;

[0021] The present invention provides a stamping device for an LED heat sink. Through the arrangement of components such as a mounting frame, a rotating shaft, a rotating cylinder, a rubber sleeve, and an electric motor, when the electric motor operates, it can drive the rotating shaft, the rotating cylinder, and the rubber sleeve to rotate. When the distance between the female die and the conveyor belt becomes larger due to production layout adjustment or other reasons, it can help the LED heat sink transition to the conveyor belt more smoothly, avoiding production stagnation caused by unsmooth transfer, and improving the applicability of this LED heat sink stamping device; by setting a U-shaped plate, a square docking head, a pin, an end plate, a fixing piece, a limiting slide bar, a limiting strip, and a fifth spring, when it is necessary to maintain or replace the rotating cylinder and the rubber sleeve, press down the limiting strip on the locking part, and the limitation on the pin can be released, and then the pin can be pulled out, which has the advantages of being convenient to replace the rubber sleeve and reducing the maintenance time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 FIG. 6 is a schematic structural diagram of the first embodiment of the LED heat sink stamping device provided by the present invention;

[0023] Figure 2 is Figure 1 a schematic structural diagram of the stamping die shown in FIG. 6;

[0024] Figure 3 is Figure 2 a right view of the stamping die shown in FIG. 6;

[0025] Figure 4 is Figure 2 a schematic cross-sectional structural diagram of the stamping die shown in FIG. 6;

[0026] Figure 5 is Figure 2 a schematic structural diagram of the jacking and transferring mechanism shown in FIG. 6;

[0027] Figure 6 is Figure 5 a schematic structural diagram of components such as a moving block, a telescopic rod, and a transfer piece shown in FIG. 6;

[0028] Figure 7 is Figure 2 a schematic structural diagram of the female die shown in FIG. 6;

[0029] Figure 8 is Figure 2 an exploded schematic diagram of the tightrope member shown in FIG. 6;

[0030] Figure 9 FIG. 12 is a schematic structural diagram of the stamping die in the second embodiment of the LED heat sink stamping device provided by the present invention;

[0031] Figure 10 is Figure 9 a schematic structural diagram of components such as a moving plate, a connecting arm, an L-shaped rod, and a retaining wheel shown in FIG. 12;

[0032] Figure 11 Schematic structural diagram of the stamping die in the third embodiment of the LED heat sink stamping equipment provided by the present invention;

[0033] Figure 12 is Figure 11 Schematic structural diagram of the auxiliary moving mechanism shown;

[0034] Figure 13 is Figure 12 Enlarged structural diagram of part A shown;

[0035] Figure 14 is Figure 13 Schematic structural diagram of the U-shaped plate and the square docking head in a separated state shown;

[0036] Figure 15 is Figure 14 Schematic structural diagram of the locking member shown;

[0037] Figure 16 is Figure 14 Schematic structural diagram of the bolt shown.

[0038] Reference numerals in the figure: 1, base; 2, support frame; 3, hydraulic cylinder; 4, lower die holder; 5, upper die holder; 6, female die; 601, square opening; 602, avoidance strip opening; 603, side chute; 7, male die; 8, fixed slide bar; 9, moving block; 10, first spring; 11, connecting rod; 12, telescopic rod; 13, connecting rod; 14, transfer piece; 15, second spring; 16, outer connecting rod; 17, first reversing pulley; 18, towing rope; 19, second reversing pulley; 20, hanging plate; 21, outer sleeve; 22, hexagonal slide bar; 23, third spring; 24, U-shaped member; 25, contact wheel; 26, moving plate; 27, connecting arm; 28, L-shaped rod; 29, blocking wheel; 30, connecting plate; 31, fourth spring; 32, mounting bracket; 33, rotating shaft; 34, rotating cylinder; 35, rubber sleeve; 36, electric motor; 37, U-shaped plate; 38, square docking head; 39, bolt; 3901, card slot; 40, end plate; 41, fixing piece; 42, limiting slide bar; 43, limiting strip; 44, fifth spring. Detailed implementation manners

[0039] The present invention will be further described below with reference to the drawings and embodiments.

[0040] First embodiment

[0041] Please refer to Figures 1 - 8, in the first embodiment of the present invention, the LED heat sink stamping device includes: a base 1, a hydraulic cylinder 3, and a stamping die. The hydraulic cylinder 3 is arranged above the base 1. A support frame 2 is fixedly installed on the top of the base 1. The hydraulic cylinder 3 is fixedly installed on the top of the support frame 2. The stamping die is arranged between the base 1 and the hydraulic cylinder 3. The stamping die includes a lower die base 4, an upper die base 5, a female die 6, and a male die 7. The lower die base 4 is fixedly installed on the top of the base 1. The female die 6 is fixedly installed on the top of the lower die base 4. The upper die base 5 is fixedly installed on the output end of the hydraulic cylinder 3. The male die 7 is fixedly installed on the bottom of the upper die base 5. A cutting knife is fixedly installed on the rear side of the male die 7. When stamping downward, the raw material plate of the LED heat sink is cut. A square opening 601 is formed in the female die 6. A lifting and transferring mechanism is arranged in the square opening 601. The lifting and transferring mechanism is used to lift the LED heat sink after stamping and forming, and then move it forward under the drive of the traction mechanism, and transport the LED heat sink to the conveyor belt located in front of the female die 6. Traction mechanisms are arranged on both sides of the female die 6;

[0042] The lifting and transferring mechanism specifically includes two fixed slide bars 8, two moving blocks 9, two telescopic rods 12, and two transfer sheets 14. The two fixed slide bars 8 are both fixedly installed in the square opening 601. The two moving blocks 9 are respectively sleeved on the two fixed slide bars 8 in a sliding manner. The same connecting rod 11 is fixedly installed between the two moving blocks 9. The two telescopic rods 12 are respectively fixedly installed on the tops of the two moving blocks 9. The telescopic rod 12 is composed of an outer cylinder and an inner sliding rod. The inner sliding rod is slidably installed in the outer cylinder. A first spring 10 is sleeved on the fixed slide bar 8. One end of the first spring 10 is in contact with the moving block 9, and the other end is in contact with the front inner wall of the square opening 601. The tops of the two telescopic rods 12 are both fixedly installed with connecting rods 13. The two transfer sheets 14 are respectively fixedly installed on the tops of the two connecting rods 13. The transfer sheet 14 is located in the forming groove formed on the top of the female die 6 and does not protrude from the top of the female die 6. In order to be able to avoid the connecting rod 13, two avoidance strip openings 602 are formed on the top inner wall of the square opening 601. The two connecting rods 13 both penetrate through the corresponding avoidance strip openings 602 and are movably connected to the inner walls on both sides of the corresponding avoidance strip openings 602. When the male die 7 stamps the plate, the transfer sheet 14 will move downward into the avoidance strip opening 602 under pressure. A second spring 15 is sleeved on the telescopic rod 12. The top of the second spring 15 is fixedly connected to the connecting rod 13, and the bottom end is fixedly connected to the moving block 9. Outer connecting rods 16 are fixedly installed on the outer walls of the two moving blocks 9 on the sides away from each other. An L-shaped positioning block is fixed at the bottom of the moving block 9. When the L-shaped positioning block abuts against the rear inner wall of the female die 6, the moving block 9 cannot move further backward. At this time, the transfer sheet 14 is aligned with the avoidance strip opening 602 up and down. Under the pressure from above, the transfer sheet 14 will enter the avoidance strip opening 602;

[0043] Any traction mechanism includes a traction rope 18. One end of the traction rope 18 is fixedly connected to the corresponding external connecting rod 16, and the other end is fixedly connected to the bottom of the upper die holder 5. After stamping is completed, during the upward reset process of the upper die holder 5, the external connecting rod 16, the moving block 9 and other components are pulled forward by the traction rope 18. To achieve the above functions, the traction mechanism specifically further includes a first reversing pulley 17, two second reversing pulleys 19 and a tightrope member. The first reversing pulley 17 and the two second reversing pulleys 19 are both fixedly installed on the top of the lower die holder 4, and the tightrope member is arranged at the bottom of the upper die holder 5. The traction rope 18 bypasses the first reversing pulley 17, and the traction rope 18 passes through between the two second reversing pulleys 19. The winding direction of the traction rope 18 is restricted by the first reversing pulley 17 and the two second reversing pulleys 19, so that during the upward reset process of the upper die holder 5, a forward traction force can be applied to the external connecting rod 16 through the traction rope 18, and the tightrope member is used to keep the traction rope 18 taut.

[0044] Specifically, the tightrope member includes a hanging plate 20, an outer sleeve 21, a hexagonal sliding rod 22, a third spring 23, a U-shaped member 24 and a contact wheel 25. The hanging plate 20 is fixedly installed at the bottom of the upper die holder 5, the outer sleeve 21 is fixedly installed at the bottom of the hanging plate 20, the hexagonal sliding rod 22 is slidably installed in the outer sleeve 21, the third spring 23 is arranged in the outer sleeve 21, one end of the third spring 23 is fixedly connected to the hanging plate 20, and the other end is fixedly connected to the hexagonal sliding rod 22. The U-shaped member 24 is fixedly installed at the end of the hexagonal sliding rod 22 away from the hanging plate 20, the contact wheel 25 is rotatably installed in the U-shaped member 24, and the traction rope 18 is in contact with the contact wheel 25. When the upper die holder 5 presses downward, the moving block 9 will move backward for reset under the elastic force of the first spring 10. Driven by the moving block 9, components such as the telescopic rod 12 and the transfer piece 14 are reset. In the subsequent process of the upper die holder 5 continuing to descend, the contact force on the contact wheel 25 gradually decreases. Under the elastic force of the third spring 23, the hexagonal sliding rod 22 will move forward, and then the contact wheel 25 is used to push the part of the traction rope 18 in contact with it forward, so as to ensure that the traction rope 18 is in a taut state, thereby preventing the traction rope 18 from becoming slack and touching other components and the raw material plate.

[0045] In this embodiment:

[0046] In the initial state, the two transfer pieces 14, the two moving blocks 9 and the two external connecting rods 16 are all in the forward position, and the two first springs 10 are all in a compressed state;

[0047] When stamping, the output end of the hydraulic cylinder 3 moves downward, pushing the upper die holder 5 downward. The punch 7 fixed to the bottom of the upper die holder 5 moves downward accordingly. During this process, the upper ends of the two traction ropes 18 follow the downward movement of the upper die holder 5, and the traction force on the two outer connecting rods 16 gradually decreases. Under the elastic force of the two first springs 10, the two moving blocks 9 will gradually move backward, and components such as the telescopic rod 12, the connecting rod 13, the transfer piece 14, and the second spring 15 move with the moving block 9 and also move backward. When the L-shaped positioning block at the bottom of the moving block 9 abuts against the rear inner wall of the female die 6, the moving block 9 cannot move further backward. At this time, the transfer piece 14 is aligned with the avoidance strip opening 602 up and down. After that, the punch 7 continues to descend with the upper die holder 5, stamping the LED heat sink raw material plate located on the female die 6. The cutting knife behind the punch 7 synchronously cuts the plate. During this process, the transfer piece 14 is under pressure and drives the connecting rod 13 downward. The transfer piece 14 will enter the avoidance strip opening 602. The inner sliding rod of the telescopic rod 12 retracts downward, and the second spring 15 is compressed to store elastic potential energy;

[0048] After the L-shaped positioning block on the moving block 9 abuts against the rear inner wall of the female die 6, since it cannot move further backward, the position of the outer connecting rod 16 is also determined. During the subsequent process of the upper die holder 5 continuing to descend, the traction rope 18 will become slack, and the contact force on the contact wheel 25 will decrease. The third spring 23 that was originally in a compressed state will be released, pushing the hexagonal sliding rod 22 forward. The hexagonal sliding rod 22 drives the U-shaped piece 24 and the contact wheel 25 forward, and the contact wheel 25 pushes the part of the traction rope 18 in contact with it forward. In this way, the tension state of the traction rope 18 can be ensured, thus avoiding the traction rope 18 from becoming slack and touching other components and the raw material plate;

[0049] After stamping is completed, the output end of the hydraulic cylinder 3 retracts upward, driving the upper die holder 5 and the punch 7 to move upward. The upper end of the traction rope 18 moves upward under the drive of the upper die holder 5. After losing the resistance of the punch 7, under the elastic force of the two second springs 15, both of the two connecting rods 13 will move upward, thereby driving the two transfer pieces 14 to move upward respectively, so as to lift the LED heat sink after stamping. The traction rope 18 gradually becomes taut, causing the contact wheel 25 to move backward. When the U-shaped piece 24 abuts against the outer sleeve 21, during the subsequent upward movement of the front end of the traction rope 18, it will pull the outer connecting rod 16 to move forward. Driven by the outer connecting rod 16, the moving block 9 will move forward, thereby driving components such as the telescopic rod 12, the connecting rod 13, the transfer piece 14, and the second spring 15 to move forward. In this way, the lifted LED heat sink will move forward under the drive of the two transfer pieces 14, so that it can enter the conveyor belt on the front side. Driven by the belt of the conveyor belt, the LED heat sink will continue to move forward and separate from the two transfer pieces 14. After that, the next round of stamping operation can be continued. From the above working principle, it can be seen that the LED heat sink after stamping can be automatically sent onto the conveyor belt on the front side.

[0050] Compared with the related technology, the LED heat sink stamping equipment provided by the present invention has the following beneficial effects:

[0051] Through the design of the lifting and transferring mechanism and the traction mechanism, the lifting and transferring mechanism includes a fixed sliding rod 8, a moving block 9, a telescopic rod 12, a transfer piece 14, a first spring 10, and a second spring 15. The traction mechanism includes a traction rope 18, a first reversing pulley 17, a second reversing pulley 19, and a tightrope member. During stamping, after being subjected to the pressure of the punch 7, the transfer piece 14 will enter the avoidance strip opening 602, and the second spring 15 will be compressed. After stamping is completed, the second spring 15 rebounds, and the transfer piece 14 can lift the LED heat sink, realizing the function of automatically lifting the LED heat sink after stamping and preparing for subsequent transfer. When the upper die holder 5 continues to move upward, the traction rope 18 pulls the outer connecting rod 16, driving the moving block 9 and the transfer piece 14 to move forward, and transferring the lifted LED heat sink to the conveyor belt, realizing the automatic transfer function of the LED heat sink after stamping. This LED heat sink stamping equipment realizes the automatic movement of the LED heat sink to the conveyor belt by means of the upward movement of the upper die holder 5, greatly improving the production efficiency, without manual intervention and without using a manipulator, and is relatively economical to use. When the upper die holder 5 presses down, the third spring 23 will push the contact wheel 25 to move forward, and the contact wheel 25 will push the part of the traction rope 18 in contact with it to move forward, so as to keep the traction rope 18 taut and avoid the traction rope 18 touching other components or raw material plates, having the advantage of reliable use.

[0052] Second Embodiment:

[0053] Based on the LED heat sink stamping equipment provided by the first embodiment of the present application, another LED heat sink stamping equipment is proposed in the second embodiment of the present application. The second embodiment is merely a preferred manner of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0054] The following further describes the second embodiment of the present invention in conjunction with the drawings and embodiments.

[0055] Please refer to Figures 9 - 10 , in the LED heat sink stamping equipment proposed in this embodiment, side chutes 603 are further opened on the outer walls on both sides of the female die 6 and above the square opening 601. A limiting slide bar is slidably installed in the two side chutes 603. A moving plate 26 is integrally formed on the limiting slide bar. A connecting arm 27 is fixedly installed at the bottom of the moving plate 26. The bottom end of the connecting arm 27 is fixedly connected to the outer connecting rod 16. When the outer connecting rod 16 moves, the moving plate 26 is driven to move correspondingly through the connecting arm 27. A plurality of L-shaped rods 28 are penetrated and slidably installed on the moving plate 26. The same connecting plate 30 is fixedly installed at the bottom ends of the plurality of L-shaped rods 28. A retaining wheel 29 is rotatably installed at one end of each of the plurality of L-shaped rods 28 away from the connecting plate 30. The retaining wheel 29 is used to block the LED heat sink to prevent the LED heat sink from moving upward with the male die 7. At the same time, when the LED heat sink is transferred, a certain pressure is applied to the LED heat sink so that the LED heat sink can stably move with the transfer sheet 14 and prevent the LED heat sink from generating too large a displacement relative to the transfer sheet 14. A fourth spring 31 is sleeved on the L-shaped rod 28. One end of the fourth spring 31 is in contact with the connecting plate 30, and the other end is in contact with the moving plate 26. During the process of the transfer sheet 14 jacking up the LED heat sink, the retaining wheel 29 will move upward and the fourth spring 31 will be compressed.

[0056] In this embodiment, in order to prevent the position of the retaining wheel 29 from being too low and blocking the raw material plate of the LED heat sink, a limiting ring is fixedly sleeved on the outer wall of the L-shaped rod 28, and the limiting ring is in contact with the top of the moving plate 26.

[0057] In this embodiment:

[0058] After stamping is completed and the punch 7 rises, the retaining wheel 29 can block the LED heat sink to prevent the LED heat sink from moving upward with the punch 7. Under the elastic force of the two second springs 15, the two transfer pieces 14 move upward, jacking up the LED heat sink by a certain distance. The retaining wheel 29 rises under the resistance of the LED heat sink, causing the fourth spring 31 to be compressed. The elastic force of the fourth spring 31 acting on the connecting plate 30 acts on the LED heat sink through the L-shaped rod 28 and the retaining wheel 29, making the LED heat sink closely adhere to the two transfer pieces 14. During the process of the traction rope 18 pulling the outer connecting rod 16 forward, the outer connecting rod 16 not only drives the moving block 9 to move, but also drives the moving plate 26 through the connecting arm 27. This enables multiple retaining wheels 29 to move synchronously with the two transfer pieces 14 and the LED heat sink, preventing the LED heat sink from having excessive displacement during the transfer process. When the front end of the LED heat sink moves onto the belt of the conveyor belt, it will continue to move forward under the drive of the belt. During this process, the retaining wheel 29 will rotate, and the friction generated with the LED heat sink is rolling friction, so it will not cause excessive hindrance to the movement of the LED.

[0059] In this embodiment, through the settings of the moving plate 26, connecting arm 27, L-shaped rod 28, connecting plate 30, retaining wheel 29 and fourth spring 31, when the punch 7 rises after stamping is completed, the retaining wheel 29 can block the LED heat sink from moving upward with the punch 7, enabling the LED heat sink to be reliably located on the female die 6. When the transfer piece 14 jacks up the LED heat sink, the retaining wheel 29 will rise, compressing the fourth spring 31. The elastic force of the fourth spring 31 acts on the LED heat sink through the retaining wheel 29, making the LED heat sink closely adhere to the transfer piece 14. During the process of transferring the LED heat sink, the retaining wheel 29 moves synchronously with the transfer piece 14 and the LED heat sink, thereby having the function of avoiding excessive displacement of the LED heat sink, having the advantages of improving the stability of product stamping and transfer and ensuring product quality, and further improving the reliability of the use of this LED heat sink stamping equipment.

[0060] Third Embodiment:

[0061] Based on the LED heat sink stamping equipment provided in the second embodiment of the present application, the third embodiment of the present application proposes another LED heat sink stamping equipment. The third embodiment is merely a preferred manner of the second embodiment, and the implementation of the third embodiment will not affect the independent implementation of the second embodiment.

[0062] The following further describes the third embodiment of the present invention in conjunction with the drawings and embodiments.

[0063] Please refer to Figures 11 - 16, in the LED heat sink stamping equipment proposed in this embodiment, an auxiliary transfer mechanism is further provided on the top of the lower die holder 4. The auxiliary transfer mechanism is located between the female die 6 and the conveyor belt, enabling the LED heat sink to transition to the conveyor belt more smoothly. Especially when the distance between the female die 6 and the conveyor belt becomes larger due to production layout adjustment or other reasons, the auxiliary transfer mechanism can play a relay role to avoid production stagnation caused by unsmooth transfer. The auxiliary transfer mechanism includes a mounting frame 32, two rotating shafts 33, a rotating cylinder 34, a rubber sleeve 35, and an electric motor 36. The mounting frame 32 is fixedly installed on the top of the lower die holder 4. The two rotating shafts 33 are both rotatably installed on the mounting frame 32. The rotating cylinder 34 is installed between the two rotating shafts 33. The rubber sleeve 35 is sleeved on the rotating cylinder 34. The electric motor 36 is fixedly installed on the outer wall of one side of the mounting frame 32, and the output end of the electric motor 36 is fixedly connected to the end of the corresponding rotating shaft 33 away from the rotating cylinder 34.

[0064] In this embodiment, in order to increase the friction between the rubber sleeve 35 and the LED heat sink, a plurality of anti-slip ridges are integrally formed on the outer wall of the rubber sleeve 35, and the plurality of anti-slip ridges are distributed in an annular array.

[0065] In this embodiment, in order to further facilitate the replacement of the severely worn rubber sleeve 35, U-shaped plates 37 are fixedly installed at the ends of the two rotating shafts 33 close to each other. Square docking heads 38 are fixedly installed at both ends of the rotating cylinder 34. The two square docking heads 38 are respectively located in the two U-shaped plates 37. Two first insertion holes are opened on the U-shaped plates 37, and two second insertion holes are opened on the square docking heads 38. Two pins 39 are inserted through and slidably installed in the two first insertion holes. The two pins 39 respectively penetrate the two second insertion holes and are slidably connected to the inner walls of the corresponding second insertion holes. Card slots 3901 are opened on both pins 39. One end plate 40 is fixedly installed at one ends of the two pins 39. A handle is welded on the end plate 40 to facilitate the extraction of the two pins 39 from the first insertion holes and the second insertion holes. A locking member is provided on the outer wall of the U-shaped plate 37 away from the end plate 40. The locking member is used to cooperate with the card slot 3901 to limit the pin 39. The locking member specifically includes a fixed piece 41, two limit sliding rods 42, a limiting strip 43, and two fifth springs 44. The fixed piece 41 is fixedly installed on the outer wall of the U-shaped plate 37 away from the end plate 40. The two limit sliding rods 42 are both inserted through and slidably installed on the fixed piece 41. The limiting strip 43 is fixedly installed at the tops of the two limit sliding rods 42, and the limiting strip 43 is located in the two card slots 3901. The two fifth springs 44 are respectively sleeved on the two limit sliding rods 42. One ends of the two fifth springs 44 are in contact with the fixed piece 41, and the other ends are in contact with the limiting strip 43.

[0066] In this embodiment:

[0067] When the electric motor 36 operates, it drives the rotating shaft 33 connected thereto to rotate. Since the rotating cylinder 34 is installed between the two rotating shafts 33, the rotation of the rotating shaft 33 will drive the rotating cylinder 34 to rotate synchronously, and the rubber sleeve 35 will rotate with the rotating cylinder 34. When the stamped LED heat sink is lifted and moves forward to the position between the female die 6 and the conveyor belt, the rotating rubber sleeve 35 can drive the LED heat sink to move forward, so that the LED heat sink can transition from the female die 6 to the conveyor belt more smoothly, avoiding the problem of poor transfer caused by the long distance between the female die 6 and the conveyor belt, and ensuring the continuity of production.

[0068] When the rubber sleeve 35 is severely worn and needs to be replaced, first manually press down the limiting bar 43 to make the limiting bar 43 withdraw from the two card slots 3901. In this way, the two pins 39 lose their locking. Then manually pull the handle on the end plate 40, and the two pins 39 can be completely withdrawn from the first insertion hole of the U-shaped plate 37 and the second insertion hole of the square docking head 38. In this way, the connection between the rotating cylinder 34 and the rotating shaft 33 is released, and then the rotating cylinder 34 can be taken out between the two rotating shafts 33. Furthermore, the rubber sleeve 35 on the rotating cylinder 34 can be replaced. After replacing the rubber sleeve 35, when reinstalling, place the square docking heads 38 at both ends of the rotating cylinder 34 into the U-shaped plates 37 on the two rotating shafts 33 respectively, align the first insertion hole and the second insertion hole, and then first press down the limiting bar 43 to avoid the pins 39. During this process, the two fifth springs 44 will be compressed. Then insert the pins 39. When the card slot 3901 on the pin 39 moves to the position corresponding to the limiting bar 43, release the limiting bar 43. Under the elastic force of the two fifth springs 44, the limiting bar 43 will move upward along the limit slide rod 42 and re-enter the card slot 3901 to complete the limitation of the pin 39, thereby fixing the rotating cylinder 34 between the two rotating shafts 33 again and restoring the auxiliary transfer mechanism to its normal working state.

[0069] In this embodiment:

[0070] Through the settings of components such as the mounting bracket 32, the rotating shaft 33, the rotating cylinder 34, the rubber sleeve 35, and the electric motor 36, when the electric motor 36 operates, it can drive the rotating shaft 33, the rotating cylinder 34, and the rubber sleeve 35 to rotate. When the distance between the female die 6 and the conveyor belt becomes larger due to production layout adjustment or other reasons, it can help the LED heat sink transition more smoothly from the female die 6 to the conveyor belt, avoiding production stagnation caused by poor transfer, and improving the applicability of this LED heat sink stamping equipment; by setting the U-shaped plate 37, the square docking head 38, the plug pin 39, the end plate 40, the fixing piece 41, the limiting slide bar 42, the limiting strip 43, and the fifth spring 44, when it is necessary to maintain or replace the rotating cylinder 34 and the rubber sleeve 35, press down the limiting strip 43 on the locking part, and the limitation on the plug pin 39 can be released, and then the plug pin 39 can be pulled out. It has the advantages of being convenient to replace the rubber sleeve 35 and reducing the maintenance time.

[0071] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. An LED heat sink stamping device, comprising a base (1), a hydraulic cylinder (3) and a stamping die. The hydraulic cylinder (3) is arranged above the base (1), and the stamping die is arranged between the base (1) and the hydraulic cylinder (3). The stamping die includes a lower die base (4), an upper die base (5), a female die (6) and a male die (7). The female die (6) is fixedly installed on the top of the lower die base (4), and the male die (7) is fixedly installed on the bottom of the upper die base (5). It is characterized in that, A square opening (601) is formed in the female die (6), a jacking and transferring mechanism is arranged in the square opening (601), and traction mechanisms are arranged on both sides of the female die (6); The jacking and transferring mechanism includes two fixed sliding rods (8), two moving blocks (9), two telescopic rods (12) and two transferring sheets (14). The two fixed sliding rods (8) are both fixedly installed in the square opening (601). The two moving blocks (9) are respectively sleeved on the two fixed sliding rods (8) in a sliding manner. The same connecting rod (11) is fixedly installed between the two moving blocks (9). The two telescopic rods (12) are respectively fixedly installed on the tops of the two moving blocks (9). A first spring (10) is sleeved on the fixed sliding rod (8). The tops of the two telescopic rods (12) are both fixedly installed with connecting rods (13). The two transferring sheets (14) are respectively fixedly installed on the tops of the two connecting rods (13). A second spring (15) is sleeved on the telescopic rod (12). Outer connecting rods (16) are fixedly installed on the outer walls of the two moving blocks (9) on the sides away from each other; Any one of the traction mechanisms includes a traction rope (18). One end of the traction rope (18) is fixedly connected to the corresponding outer connecting rod (16), and the other end is fixedly connected to the bottom of the upper die base (5).

2. The LED heat sink stamping device according to claim 1, characterized in that Two avoidance strip openings (602) are formed in the inner wall of the top of the square opening (601). The two connecting rods (13) both penetrate through the corresponding avoidance strip openings (602) and are movably connected to the inner walls on both sides of the corresponding avoidance strip openings (602).

3. The LED heat sink stamping equipment according to claim 1, characterized in that The traction mechanism further includes a first reversing pulley (17), two second reversing pulleys (19) and a tight rope member. The first reversing pulley (17) and the two second reversing pulleys (19) are both fixedly installed on the top of the lower die base (4). The tight rope member is arranged at the bottom of the upper die base (5). The traction rope (18) bypasses the first reversing pulley (17), and the traction rope (18) passes through between the two second reversing pulleys (19). The tight rope member is used to keep the traction rope (18) taut.

4. The LED heat sink stamping device according to claim 3, wherein, The tight rope member includes a hanging plate (20), an outer sleeve (21), a hexagonal sliding rod (22), a third spring (23), a U-shaped member (24) and a contact wheel (25). The hanging plate (20) is fixedly installed at the bottom of the upper die base (5). The outer sleeve (21) is fixedly installed at the bottom of the hanging plate (20). The hexagonal sliding rod (22) is slidably installed in the outer sleeve (21). The third spring (23) is arranged in the outer sleeve (21). One end of the third spring (23) is fixedly connected to the hanging plate (20), and the other end is fixedly connected to the hexagonal sliding rod (22). The U-shaped member (24) is fixedly installed at the end of the hexagonal sliding rod (22) away from the hanging plate (20). The contact wheel (25) is rotatably installed in the U-shaped member (24). The traction rope (18) is in contact with the contact wheel (25).

5. The LED heat sink stamping device according to claim 1, characterized in that On both outer walls of the female die (6) and above the square opening (601), side chutes (603) are provided. A moving plate (26) is slidably installed in the two side chutes (603). A connecting arm (27) is fixedly installed at the bottom of the moving plate (26). The bottom end of the connecting arm (27) is fixedly connected to the outer connecting rod (16). A plurality of L-shaped rods (28) penetrate through and are slidably installed on the moving plate (26). The same connecting plate (30) is fixedly installed at the bottom ends of the plurality of L-shaped rods (28). A retaining wheel (29) is rotatably installed at one end of each of the plurality of L-shaped rods (28) away from the connecting plate (30). A fourth spring (31) is sleeved on the L-shaped rod (28). One end of the fourth spring (31) is in contact with the connecting plate (30), and the other end is in contact with the moving plate (26).

6. The LED heat sink stamping device according to claim 5, characterized in that A limiting ring is fixedly sleeved on the outer wall of the L-shaped rod (28), and the limiting ring is in contact with the top of the moving plate (26).

7. The LED heat sink stamping device according to claim 1, characterized in that An auxiliary transfer mechanism is further provided on the top of the lower die base (4). The auxiliary transfer mechanism includes a mounting frame (32), two rotating shafts (33), a rotating cylinder (34), a rubber sleeve (35), and an electric motor (36). The mounting frame (32) is fixedly installed on the top of the lower die base (4). The two rotating shafts (33) are rotatably installed on the mounting frame (32). The rotating cylinder (34) is installed between the two rotating shafts (33). The rubber sleeve (35) is sleeved on the rotating cylinder (34). The electric motor (36) is fixedly installed on one outer wall of the mounting frame (32). The output end of the electric motor (36) is fixedly connected to the end of the corresponding rotating shaft (33) away from the rotating cylinder (34).

8. The LED heat sink stamping device according to claim 7, characterized in that, A plurality of anti-slip ridges are integrally formed on the outer wall of the rubber sleeve (35), and the plurality of anti-slip ridges are distributed in an annular array.

9. The LED heat sink stamping device according to claim 7, wherein, U-shaped plates (37) are fixedly installed at one ends of the two rotating shafts (33) close to each other. Square docking heads (38) are fixedly installed at both ends of the rotating cylinder (34). The two square docking heads (38) are respectively located in the two U-shaped plates (37). Two first insertion holes are provided on the U-shaped plate (37). Two second insertion holes are provided on the square docking head (38). Two pins (39) penetrate through and are slidably installed in the two first insertion holes. The two pins (39) respectively penetrate through the two second insertion holes and are slidably connected to the inner walls of the corresponding second insertion holes. Card slots (3901) are provided on the two pins (39). An end plate (40) is fixedly installed at one end of the two pins (39). A locking member is provided on the outer wall of the U-shaped plate (37) away from the end plate (40), and the locking member is used to cooperate with the card slot (3901) to limit the pin (39).

10. The LED heat sink stamping device according to claim 9, characterized in that, The locking member includes a fixing piece (41), two limiting sliding rods (42), a limiting strip (43) and two fifth springs (44). The fixing piece (41) is fixedly installed on the outer wall of the U-shaped plate (37) away from the end plate (40). Both of the two limiting sliding rods (42) penetrate and are slidably installed on the fixing piece (41). The limiting strip (43) is fixedly installed at the tops of the two limiting sliding rods (42), and the limiting strip (43) is located in the two clamping grooves (3901). The two fifth springs (44) are respectively sleeved on the two limiting sliding rods (42). One end of each of the two fifth springs (44) is in contact with the fixing piece (41), and the other end of each is in contact with the limiting strip (43).

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