A stamping equipment for automatically changing molds

Abstract

The present invention relates to the technical field of stamping equipment, and in particular to a stamping equipment for automatically replacing molds, including a frame, a material conveying mechanism, a cutting device, a stamping device, an integrated stamping die set, a fixing mechanism, a conveying mechanism, a mold detection device, and a main control module. The present invention obtains the friction value inside the integrated stamping die set through the mold detection device, and cooperates with the cutting device, the upper die driver, the upper die fixing seat, the lower die driver, the lower die fixing seat, the conveying mechanism, and the lifting platform to remove the old integrated stamping die set from the stamping device, and then install the new integrated stamping die set on the stamping device, so that the stamping equipment automatically replaces the integrated stamping die set according to the degree of wear of the die, so that the die of the stamping equipment will not be excessively worn to induce equipment failure, thereby reducing interference with the continuity and stability of the production line.

Description

Technical Field

[0001] The invention relates to the technical field of stamping equipment, and in particular to a stamping equipment capable of automatically replacing a die. Background Art

[0002] In the field of stamping processing of strip materials, fine operations such as punching, tongue cutting, flattening and stretching are generally performed on the strip materials to process the strip materials into the required shape and size. Faced with the dual pressures of market competition and cost control, production companies tend to adopt an efficient operation model. One of the significant strategies is to let one operator be responsible for supervising multiple stamping equipment to maximize the utilization of human resources.

[0003] However, the current challenge is that the intelligence level of some equipment is not enough to achieve comprehensive automatic monitoring and early warning, which requires operators to have a high sense of responsibility and keen observation. Unfortunately, even in the best conditions, human factors may lead to omissions, such as failure to detect in time when the mold is worn to the point of replacing the baseline. Excessive wear of the mold will not only increase the punching force and put unnecessary pressure on the punch press, but in the long run it is more likely to induce equipment failure and seriously interfere with the continuity and stability of the production line, so it is necessary to improve it. Summary of the invention

[0004] The purpose of the present invention is to address the deficiencies in the prior art and provide a stamping device for automatically replacing molds. The friction force value inside the integrated stamping die group is obtained through a mold detection device, and the old integrated stamping die group is removed from the stamping device through the cooperation of a cutting device, an upper die driver, an upper die fixing seat, a lower die driver, a lower die fixing seat, a conveying mechanism and a lifting platform. Then, a new integrated stamping die group is installed on the stamping device, so that the stamping equipment automatically replaces the integrated stamping die group according to the degree of wear of the die, so that the die of the stamping equipment will not be excessively worn to induce equipment failure, thereby reducing interference with the continuity and stability of the production line.

[0005] To achieve the above-mentioned object, a stamping device for automatically changing a die of the present invention comprises a frame, a belt conveying mechanism, a cutting device, a stamping device, an integrated stamping die set, a fixing mechanism, a conveying mechanism, a die detection device and a main control module;

[0006] The frame is provided with a first station and a second station, and the second station is provided with a mold changing inlet and a mold changing outlet;

[0007] The belt conveying mechanism is arranged on the frame and located between the first station and the second station. The belt conveying mechanism includes a feeding end and a receiving end. The unprocessed belt is conveyed through the feeding end, and the processed belt is wound up at the receiving end, so that the belt is kept within a preset tension range.

[0008] The cutting device is arranged between the feeding end and the receiving end and is used to cut the strip material;

[0009] The punching device includes an upper die fixing seat, an upper die driver, a lower die fixing seat and a lower die driver. The upper die driver drives the upper die fixing seat to rise and fall and slide to a first station; the lower die driver drives the lower die fixing seat to rise and fall and slide to a second station.

[0010] The integrated stamping die set comprises an upper die, a lower die and a die outer frame, wherein a guide is arranged inside the die outer frame, and the upper die and the lower die are both stacked inside the die outer frame and slidably connected with the die outer frame through the guide;

[0011] The fixing mechanism is used to clamp and fix the upper mold to the upper mold fixing seat, clamp and fix the lower mold to the lower mold fixing seat, and clamp and fix the mold outer frame to the frame;

[0012] The upper die driver drives the upper die fixing seat to lift and slide, thereby driving the upper die to slide up and down along the guide piece; the lower die driver drives the lower die fixing seat to lift and slide, thereby driving the lower die to slide up and down along the guide piece, thereby realizing the stamping and cutting operation of the upper and lower ends of the strip at the same time;

[0013] The conveying mechanism runs through the die changing inlet and the die changing outlet, and the conveying mechanism is provided with a lifting platform for carrying the integrated stamping die set;

[0014] The mold detection device includes a friction detection module, which is used to obtain the friction between the upper mold and the guide member or the friction between the lower mold and the guide member;

[0015] The belt conveying mechanism, the cutting device, the punching device, the conveying mechanism, the fixing mechanism and the mold detection device are all electrically connected to the main control module;

[0016] Die changing method for stamping equipment:

[0017] A. The friction force value between the upper die and the guide member or the friction force value between the lower die and the guide member is obtained through the die detection device and fed back to the main control module. The main control module compares the fed-back friction force value with the preset value. If the fed-back friction force value is greater than the preset value, the stamping device is controlled to stop;

[0018] B. Control the feeding end of the belt conveying mechanism to stop conveying the belt, the cutting device to cut the belt, and the receiving end of the belt conveying mechanism to reel in the cut belt;

[0019] C. The upper die driver drives the upper die fixing seat to slide downward and approach the die outer frame. The upper die slides downward along the guide member and contacts the lower die. The upper die driver stops, and controls the fixing mechanism to release the upper die, so that the upper die is superimposed on the lower die; the fixing mechanism is controlled to release the lower die, and the lower die driver drives the lower die fixing seat to slide downward, and the lower die contacts the die outer frame. The lower die driver continues to drive the lower die fixing seat to slide downward and away from the die outer frame and then stops, so that the upper die and the lower die superimposed on the lower die are both carried in the die outer frame; the lifting platform is controlled to rise and carry the die outer frame, and the fixing mechanism is controlled to release the die outer frame, so that the die outer frame is separated from the frame and carried on the lifting platform; the lifting platform descends, and the conveying mechanism conveys the lifting platform away from the frame, so that the integrated stamping die set is unloaded from the stamping device;

[0020] D. Control the conveying mechanism to carry another integrated stamping die set through the lifting platform and transport it to the second station in the frame, control the lifting platform to rise and lift up the outer frame of the carrying die, control the fixing mechanism to clamp the outer frame of the die, so that the outer frame of the die is fixed to the frame; the lower die driver drives the lower die fixing seat to rise and slide into the outer frame of the die and contact with the lower die, the lower die driver stops, and controls the fixing mechanism to clamp the lower die, so that the lower die is fixed to the lower die fixing seat; the upper die driver drives the upper die fixing seat to slide down and approach the outer frame of the die, the upper die fixing seat contacts with the upper die, the upper die driver stops, and controls the fixing mechanism to clamp the upper die, so that the upper die is fixed to the upper die fixing seat, so that the integrated stamping die set is installed on the stamping device.

[0021] Preferably, an upper opening and a lower opening are respectively provided at the upper and lower ends of the mold outer frame, the upper mold is exposed outside the mold outer frame through the upper opening, and the lower mold fixing seat extends into the mold outer frame through the lower opening;

[0022] The mold detection device further includes a temperature detection module. The mold outer frame is provided with a temperature detection blind hole. The temperature detection module obtains temperature information of the mold outer frame through the temperature detection blind hole and feeds it back to the main control module.

[0023] The mold outer frame is provided with a temperature detection groove corresponding to the guide member, and the temperature detection module obtains the temperature information of the guide member through the temperature detection groove and feeds it back to the main control module.

[0024] Preferably, the feeding end of the belt conveying mechanism includes a feeding device, a first bearing member and a first displacement driver;

[0025] The material receiving end of the belt conveying mechanism includes a material receiver, a second bearing member and a second displacement driver;

[0026] The first carrier and the second carrier are both slidably connected to the frame and are arranged horizontally relative to each other. The first carrier and the second carrier are both provided with a conveying channel for conveying the belt material. The first displacement driver is fixed to the frame and drives the first carrier to slide along the frame. The second displacement driver is fixed to the frame and drives the second carrier to slide along the frame.

[0027] Preferably, the working method of the belt conveyor mechanism is:

[0028] B1. When the integrated stamping die set is installed on the stamping device, the first displacement driver drives the first carrier to approach the second carrier, and the second displacement driver drives the second carrier to approach the first carrier, so that the first carrier and the second carrier collide with each other;

[0029] B2. The strip material is transported from the feeder to the receiver along the conveying channel through the cutting device;

[0030] B3. The first displacement driver drives the first carrier away from the second carrier, and the second displacement driver drives the second carrier away from the first carrier, so that the first carrier is separated from the second carrier, and the strip is horizontally arranged between the upper mold and the lower mold and controlled within a preset tension range;

[0031] B4. When the cutting device cuts the strip, the reel reels the cut strip;

[0032] B5. The first displacement driver drives the first carrier away from the second carrier, and the second displacement driver drives the second carrier away from the first carrier, so that the first carrier and the second carrier are separated to make room for the upper mold to descend, thereby preventing the first carrier and the second carrier from interfering with the descent of the upper mold.

[0033] Preferably, the cutting device includes a slide, a cutter, a carrier plate and a cutting drive, the slide and the carrier plate are fixed in the conveying channel of the first carrier, the cutter is slidably connected to the slide, and the cutting drive is fixed to the slide and drives the cutter to approach or move away from the carrier plate.

[0034] Preferably, the fixing mechanism includes a first fixing mechanism, a second fixing mechanism and a third fixing mechanism.

[0035] The first fixing mechanism includes a plurality of negative pressure suction heads arranged on the upper mold fixing seat and used to fix the upper mold, the upper mold is provided with a plurality of fixing blind holes, and the plurality of negative pressure suction heads respectively adsorb and fix the upper mold through the plurality of fixing blind holes;

[0036] The second fixing mechanism includes a first clamping member provided on the lower mold fixing seat and used to fix the lower mold, the lower mold is provided with a clamping portion, and the first clamping member fixes the lower mold by clamping the clamping portion;

[0037] The third fixing mechanism includes a plurality of second clamping members arranged on the frame and used to fix the mold outer frame. The side of the mold outer frame is provided with a plurality of fixing grooves. The plurality of second clamping members respectively extend into the plurality of fixing grooves and clamp the mold outer frame to fix the mold outer frame.

[0038] Preferably, the conveying mechanism includes a conveying member and a conveying driver, the conveying driver is electrically connected to the main control module, the conveying driver drives the conveying member to rotate, and the lifting platform is arranged on the conveying member;

[0039] A carrier is provided between the lifting platform and the conveying member, a lifting protection member and a lifting driver are provided at the edge of the carrier, and the lifting driver drives the lifting protection member to move up and down;

[0040] The inner wall of the lifting protection member is provided with a rolling member which is rollingly connected with the outer frame of the mold.

[0041] Preferably, the second station is provided with a positioning mechanism for positioning the lifting platform, the positioning mechanism comprises a positioning member and a sliding drive, the sliding drive is fixed to the frame and drives the positioning member to telescopically move, and the sliding drive is electrically connected to the main control module;

[0042] The lifting platform is provided with a contact switch, which is electrically connected to the main control module;

[0043] When the transport driver drives the lifting platform to move to the second station through the transmission member, and the contact switch of the lifting platform conflicts with the positioning member, the transport driver is controlled to stop.

[0044] Preferably, the frame is provided with a travel monitoring mechanism for monitoring the position between the upper die fixing seat and the lower die fixing seat and the frame, and the travel monitoring mechanism is electrically connected to the main control module;

[0045] The upper mold and the lower mold are both provided with a tool protection cavity, in which a tool and a telescopic driver for controlling the telescopic extension of the tool are provided, the telescopic driver is electrically connected to the main control module, the telescopic driver is fixed in the tool protection cavity and drives the tool to be slidably connected with the tool protection cavity, so that the tool is exposed outside the tool protection cavity or retracted in the tool protection cavity;

[0046] When the upper die fixing seat and the lower die fixing seat slide to the first position H1 of the preset stroke monitoring mechanism (17), the telescopic driver drives the tool to slide and retract into the tool protection cavity;

[0047] When the upper die fixing seat and the lower die fixing seat slide to the second position H2 of the preset stroke monitoring mechanism (17), the telescopic driver drives the tool to slide and appear outside the tool protection cavity.

[0048] Preferably, the tool is tilted in the tool protection cavity, the tool is provided with a limit block and a limit support, the limit support comprises a first support section and a second support section, the first support section and the second support section are hinged, one end of the first support section is hinged to the limit block, and one end of the second support section is hinged to the inner wall of the tool protection cavity;

[0049] When the tool is exposed outside the tool protection cavity, the limiting block contacts the inner wall of the tool protection cavity, and the first supporting section and the second supporting section of the limiting support member are perpendicular;

[0050] When the tool slides and shrinks in the tool protection cavity, the limiting block is separated from the inner wall of the tool protection cavity, and the first supporting section and the second supporting section of the limiting support are folded.

[0051] Beneficial effects of the present invention: The present invention obtains the friction value inside the integrated stamping die group through a die detection device, and cooperates with a cutting device, an upper die driver, an upper die fixing seat, a lower die driver, a lower die fixing seat, a conveying mechanism and a lifting platform to remove the old integrated stamping die group from the stamping device, and then install a new integrated stamping die group on the stamping device, so that the stamping equipment automatically replaces the integrated stamping die group according to the degree of wear of the die, so that the die of the stamping equipment will not be excessively worn to induce equipment failure, thereby reducing interference with the continuity and stability of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 It is a schematic diagram of the decomposition structure of the present invention.

[0053] Figure 2 It is a schematic diagram of the structure of the frame, the punching device and the fixing mechanism of the present invention.

[0054] Figure 3 It is a schematic structural diagram of the belt conveying mechanism and the cutting device of the present invention.

[0055] Figure 4 It is a schematic diagram of the structure of the cutting device of the present invention.

[0056] Figure 5 It is a schematic structural diagram of the integrated stamping die set of the present invention.

[0057] Figure 6 It is a schematic cross-sectional structural diagram of the upper mold of the present invention.

[0058] Figure 7 It is a schematic diagram of the structure of the conveying mechanism of the present invention.

[0059] Reference numerals include:

[0060] 1. Frame; 11. First station; 12. Second station; 13. Die change entrance; 14. Die change exit; 15. Positioning member; 16. Sliding drive; 17. Travel monitoring mechanism;

[0061] 2. Material conveying mechanism; 21. Material feeder; 22. First bearing member; 23. First displacement driver; 24. Material receiver; 25. Second bearing member; 26. Second displacement driver; 27. Material pressing roller; 28. Material pressing driver;

[0062] 3. Cutting device; 31. Slide; 32. Cutter; 33. Carrier; 331. Punching groove; 332. Material guide slope; 34. Cutting drive;

[0063] 4. Punching device; 41. Upper die fixing seat; 42. Upper die driver; 43. Lower die fixing seat; 44. Lower die driver;

[0064] 5. Integrated stamping die set; 51. Upper die; 511. Fixed blind hole; 52. Lower die; 521. Clamping part; 53. Die frame; 531. Upper opening; 532. Lower opening; 533. Temperature detection blind hole; 534. Temperature detection slot; 535. Fixed slot; 54. Guide; 55. Tool protection cavity; 56. Tool; 57. Telescopic driver; 58. Limit block; 59. Limit support; 591. First support section; 592. Second support section;

[0065] 6. Fixing mechanism; 61. Negative pressure suction head; 62. First clamping member; 63. Second clamping member;

[0066] 7. Transport mechanism; 71. Lifting platform; 72. Conveying member; 73. Transport drive; 74. Carrying frame; 741. Lifting protection member; 742. Lifting drive; 743. Rolling member. DETAILED DESCRIPTION

[0067] The present invention is described in detail below with reference to the accompanying drawings.

[0068] like Figures 1 to 7 As shown, a stamping device for automatically changing molds of the present invention includes a frame 1, a material conveying mechanism 2, a cutting device 3, a stamping device 4, an integrated stamping mold group 5, a fixing mechanism 6, a conveying mechanism 7, a mold detection device and a main control module.

[0069] A first workstation 11 and a second workstation 12 are provided in the frame 1 . The second workstation 12 is provided with a mold changing inlet 13 and a mold changing outlet 14 .

[0070] The belt conveying mechanism 2 is arranged on the frame 1 and is located between the first workstation 11 and the second workstation 12. The belt conveying mechanism 2 includes a feeding end and a receiving end. The unprocessed belt is conveyed through the feeding end, and the processed belt is rolled up at the receiving end so that the belt is kept within a preset tension range, so as to facilitate fine operations such as punching, tongue cutting, flattening and stretching of the belt.

[0071] The cutting device 3 is arranged between the feeding end and the receiving end and is used to cut the strip material.

[0072] The punching device 4 includes an upper die holder 41 , an upper die driver 42 , a lower die holder 43 and a lower die driver 44 . The upper die driver 42 drives the upper die holder 41 to move up and down and slide in the first station 11 . The lower die driver 44 drives the lower die holder 43 to move up and down and slide in the second station 12 .

[0073] The upper die driver 42 and the lower die driver 44 may be drivers such as hydraulic cylinders, pneumatic cylinders or crank slider mechanisms. In this embodiment, the upper die driver 42 and the lower die driver 44 are both pneumatic cylinders.

[0074] The integrated stamping die set 5 includes an upper die 51, a lower die 52 and a die outer frame 53. A guide member 54 is provided inside the die outer frame 53. The guide member 54 is a guide column or a guide block. The upper die 51 and the lower die 52 are both stacked in the die outer frame 53 and are slidably connected to the die outer frame 53 through the guide member 54.

[0075] The fixing mechanism 6 is used to clamp and fix the upper mold 51 to the upper mold fixing seat 41 , clamp and fix the lower mold 52 to the lower mold fixing seat 43 , and clamp and fix the mold outer frame 53 to the frame 1 .

[0076] The upper die driver 42 drives the upper die fixing seat 41 to rise and fall and slide, thereby driving the upper die 51 to slide up and down along the guide member 54, and the lower die driver 44 drives the lower die fixing seat 43 to rise and fall and slide, thereby driving the lower die 52 to slide up and down along the guide member 54, thereby realizing the stamping and punching operation of the upper and lower ends of the strip material at the same time. The upper and lower ends are stamped and punched at the same time to balance and distribute the stress evenly, and the upper and lower dies are pressed at the same time to make the stress on the strip material during the stamping process more even and balanced, thereby reducing the stress concentration and deformation problems caused by unidirectional pressure. Especially for thin plate materials, this method can significantly reduce the deformation after stamping, improve the flatness of the product, and improve the precision and quality of the finished product. The size of the product after stamping is more accurate, the edge quality is better, and the appearance of burrs and irregular edges is reduced. Due to the more uniform stress, the wear distribution of the mold will also be more uniform, reducing the situation of local wear, thereby extending the service life of the mold. The simultaneous pressure applied in opposite directions can complete the operation of the upper and lower ends in one stamping, reduce the process steps, and improve production efficiency.

[0077] The conveying mechanism 7 passes through the die-changing inlet 13 and the die-changing outlet 14 , and the conveying mechanism 7 is provided with a lifting platform 71 for carrying the integrated stamping die set 5 .

[0078] The mold detection device includes a friction detection module, which is used to obtain the friction between the upper mold 51 and the guide member 54 or the friction between the lower mold 52 and the guide member 54. Specifically, the friction detection module is a friction sensor.

[0079] The mold detection device may also include a contact or non-contact wear detection sensor, such as a displacement sensor, a pressure sensor, or a spectral confocal sensor, to detect the wear between the upper mold 51 and the guide member 54 or the wear between the lower mold 52 and the guide member 54 .

[0080] The material conveying mechanism 2, the cutting device 3, the punching device 4, the transporting mechanism 7, the fixing mechanism 6 and the mold detection device are all electrically connected to the main control module, so that the main control module can control the material conveying mechanism 2, the cutting device 3, the punching device 4, the transporting mechanism 7, the fixing mechanism 6 and the mold detection device.

[0081] The main control module is a conventional control board or a conventional control unit. The control board or control unit is a circuit board that integrates a microprocessor CPU, memory, input and output interfaces, communication interfaces, and necessary auxiliary components. It is responsible for receiving input signals, performing data processing and logical judgment, and then outputting control signals to achieve control and management of the entire system or equipment.

[0082] Die changing method for stamping equipment:

[0083] A. The friction force value between the upper mold 51 and the guide member 54 or the friction force value between the lower mold 52 and the guide member 54 is obtained through the mold detection device and fed back to the main control module. The main control module compares the fed-back friction force value with the preset value. If the fed-back friction force value is greater than the preset value, the stamping device 4 is controlled to stop.

[0084] B. Control the feeding end of the belt conveying mechanism 2 to stop conveying the belt, the cutting device 3 cuts the belt, and the receiving end of the belt conveying mechanism 2 reels the cut belt.

[0085] C. The upper die driver 42 drives the upper die holder 41 to slide downward and approach the die outer frame 53. The upper die 51 slides downward along the guide member 54 and contacts the lower die 52 as the upper die holder 41 slides downward. The upper die driver 42 stops, and the fixing mechanism 6 is controlled to release the upper die 51, so that the upper die 51 is superimposed on the lower die 52. The fixing mechanism 6 is controlled to release the lower die 52. The lower die driver 44 drives the lower die holder 43 to slide downward, so that the lower die 52 contacts the die outer frame 53. The lower die driver 44 continues to drive the lower die holder 43 to slide downward away from the die outer frame 53 and then stops, so that the upper die 51 and the lower die 52 superimposed on the lower die 52 are both carried in the die outer frame 53. The lifting platform 71 is controlled to rise and carry the die outer frame 53. The fixing mechanism 6 is controlled to release the die outer frame 53, so that the die outer frame 53 is separated from the frame 1 and carried on the lifting platform 71. The lifting platform 71 descends, and the conveying mechanism 7 transports the lifting platform 71 away from the frame 1 , so that the integrated stamping die set 5 is unloaded from the stamping device 4 .

[0086] D. Control the conveying mechanism 7 to carry another integrated stamping die set 5 through the lifting platform 71 and transport it to the second station 12 in the frame 1, control the lifting platform 71 to rise and lift the carrying die frame 53, and control the fixing mechanism 6 to clamp the die frame 53 so that the die frame 53 is fixed to the frame 1. The lower die driver 44 drives the lower die fixing seat 43 to rise and slide into the die frame 53 and contact with the lower die 52, the lower die driver 44 stops, and controls the fixing mechanism 6 to clamp the lower die 52 so that the lower die 52 is fixed to the lower die fixing seat 43. The upper die driver 42 drives the upper die fixing seat 41 to slide down and approach the die frame 53, the upper die fixing seat 41 contacts with the upper die 51, the upper die driver 42 stops, and controls the fixing mechanism 6 to clamp the upper die 51 so that the upper die 51 is fixed to the upper die fixing seat 41, so that the integrated stamping die set 5 is installed on the stamping device 4.

[0087] The stamping equipment of the present application automatically replaces the integrated stamping die set 5 according to the degree of wear of the die, so that the die of the stamping equipment will not be excessively worn to induce equipment failure, thereby reducing interference with the continuity and stability of the production line.

[0088] like Figure 5 As shown, the upper and lower ends of the mold outer frame 53 of this embodiment are respectively provided with an upper opening 531 and a lower opening 532, and the upper mold 51 is exposed outside the mold outer frame 53 through the upper opening 531, so as to facilitate the connection between the upper mold 51 and the upper mold fixing seat 41. The lower mold fixing seat 43 extends into the mold outer frame 53 through the lower opening 532, so as to facilitate the connection between the lower mold fixing seat 43 and the lower mold 52.

[0089] The mold detection device also includes a temperature detection module, which is a temperature detector. The mold outer frame 53 is provided with a temperature detection blind hole 533, and the temperature detection module obtains the temperature information of the mold outer frame 53 through the temperature detection blind hole 533 and feeds it back to the main control module.

[0090] The mold outer frame 53 is provided with a temperature detection groove 534 corresponding to the guide member 54, and the temperature detection module obtains the temperature information of the guide member 54 through the temperature detection groove 534 and feeds it back to the main control module. The mold detection device can obtain the temperature of the mold outer frame 53 and the temperature of the guide member 54 through the temperature detection module, so that the main control module can ensure that the integrated stamping die set 5 works within a normal temperature range by detecting the temperature of the mold outer frame 53 and the temperature of the guide member 54, and prevent the abnormal working temperature of the integrated stamping die set 5 caused by excessive wear.

[0091] like Figure 2 and Figure 3 As shown, the feeding end of the belt conveyor mechanism 2 of this embodiment includes a feeder 21, a first bearing member 22 and a first displacement driver 23. Among them, the feeder 21 is a feed roller, and the first displacement driver 23 is a hydraulic cylinder or a cylinder. In this embodiment, the first displacement driver 23 is an example of a cylinder.

[0092] The receiving end of the belt conveyor mechanism 2 includes a receiving device 24, a second bearing member 25 and a second displacement driver 26. The receiving device 24 is a receiving roller, and the second displacement driver 26 is a hydraulic cylinder or a pneumatic cylinder. In this embodiment, the second displacement driver 26 is an example of a pneumatic cylinder.

[0093] The first carrier 22 and the second carrier 25 are both slidably connected to the frame 1 and are arranged horizontally relative to each other. The first carrier 22 and the second carrier 25 are both provided with conveying channels for conveying the belt material. The first displacement driver 23 is fixed to the frame 1 and drives the first carrier 22 to slide along the frame 1. The second displacement driver 26 is fixed to the frame 1 and drives the second carrier 25 to slide along the frame 1.

[0094] Working method of the belt conveyor mechanism 2 of this embodiment:

[0095] B1. When the integrated stamping die set 5 is installed on the stamping device 4, the first displacement driver 23 drives the first carrier 22 to approach the second carrier 25, and the second displacement driver 26 drives the second carrier 25 to approach the first carrier 22, so that the first carrier 22 and the second carrier 25 collide with each other.

[0096] B2. The strip material is transported from the feeder 21 to the receiver 24 along the conveying channel through the cutting device 3 .

[0097] B3. The first displacement driver 23 drives the first carrier 22 away from the second carrier 25, and the second displacement driver 26 drives the second carrier 25 away from the first carrier 22, so that the first carrier 22 and the second carrier 25 are separated, and the strip is horizontally arranged between the upper mold 51 and the lower mold 52 and controlled within a preset tension range.

[0098] B4. When the cutting device 3 cuts the strip, the reel 24 reels the cut strip.

[0099] B5. The first displacement driver 23 drives the first carrier 22 away from the second carrier 25, and the second displacement driver 26 drives the second carrier 25 away from the first carrier 22, so that the first carrier 22 and the second carrier 25 are separated to make room for the upper mold 51 to descend, thereby preventing the first carrier 22 and the second carrier 25 from interfering with the descent of the upper mold 51.

[0100] Preferably, the conveying channel is provided with a pressing roller 27 for pressing the strip material and a pressing driver 28 for driving the pressing roller to press the strip material. The pressing driver 28 adjusts the pressing roller 27 to apply pressure to the strip material, so as to control the strip material to be horizontally arranged between the upper mold 51 and the lower mold 52 and to be controlled within a preset tension range. The pressing driver 28 is a hydraulic cylinder or a pneumatic cylinder, and the pressing driver 28 is electrically connected to the main control module. In this embodiment, the pressing driver 28 is an example of a pneumatic cylinder. The pressing roller 27 is an electric pressing roller, and the pressing roller 27 presses on the first bearing member 22 or the second bearing member 25 of the strip material, and drives the strip material to be conveyed in the first bearing member 22 or the second bearing member 25 through friction.

[0101] like Figure 3 and Figure 4 As shown, the cutting device 3 of this embodiment includes a carriage 31, a cutter 32, a carrier plate 33 and a cutting driver 34. The carriage 31 and the carrier plate 33 are fixed in the conveying channel of the first carrier 22. The cutter 32 is slidably connected to the carriage 31. The cutting driver 34 is fixed to the carriage 31 and drives the cutter 32 to approach or move away from the carrier plate 33. The cutting driver 34 is a hydraulic cylinder or a pneumatic cylinder. In this embodiment, the cutting driver 34 is exemplified as a hydraulic cylinder.

[0102] When in use, the strip is conveyed between the cutter 32 and the carrier plate 33, and the cutting driver 34 drives the cutter 32 to approach the carrier plate 33 and press the strip to cut the strip. The cutting driver 34 drives the cutter 32 away from the carrier plate 33 to facilitate the conveying of the strip in the conveying channel.

[0103] Specifically, a punching groove 331 is provided on the carrier plate 33, and the cutting driver 34 drives the cutter 32 to slide and press the strip into the punching groove to cut the strip.

[0104] The carrier plate 33 extends out from one end of the first carrier 22 close to the second carrier 25. When the first carrier 22 and the second carrier 25 are in contact with each other, the carrier plate 33 is located at the connection between the first carrier 22 and the second carrier 25, which facilitates the docking of the first carrier 22 and the second carrier 25.

[0105] A material guide slope 332 is provided at one end of the carrier plate 33 away from the second carrier 25. The material guide slope 332 lifts the strip material and passes over the punching groove 331. The strip material is restrained by the cutter 32 and its own gravity and moves downward into the second carrier 25, making it easier for the strip material to pass through the first carrier 22 and the second carrier 25.

[0106] Preferably, a plurality of negative pressure suction nozzles (not shown) are provided at the carrier plate 33. When the web is passed between the first carrier 22 and the second carrier 25, the negative pressure suction nozzles intermittently adsorb the web so that the web is tightly attached to the carrier plate 33, so that the web can pass smoothly between the first carrier 22 and the second carrier 25.

[0107] The specific method of intermittently absorbing the tape by the negative pressure suction nozzle is that when the tape passes through the cutter 32, the negative pressure suction nozzle works to absorb the tape so that the tape is attached to the carrier 33. As the tape is conveyed and arched, the negative pressure suction nozzle stops working, and the tape slides into the second carrier 25 through the carrier 33. The negative pressure suction nozzle works to absorb the tape to prevent the tape from curling up. After the pressing roller 27 presses the tape, the negative pressure suction nozzle stops working, so that the pressing roller 27 can be pressed on the first carrier 22 or the second carrier 25 of the tape, and the friction force drives the tape to be conveyed in the first carrier 22 or the second carrier 25.

[0108] like Figure 2 and Figure 5 As shown, the fixing mechanism 6 of this embodiment includes a first fixing mechanism, a second fixing mechanism and a third fixing mechanism.

[0109] The first fixing mechanism includes a plurality of negative pressure suction heads 61 which are arranged on the upper mold fixing seat 41 and are used to fix the upper mold 51. The upper mold 51 is provided with a plurality of fixing blind holes 511. The plurality of negative pressure suction heads 61 respectively adsorb and fix the upper mold 51 through the plurality of fixing blind holes 511, so that the first fixing mechanism and the upper mold 51 are fixed more conveniently.

[0110] The second fixing mechanism includes a first clamping member 62 disposed on the lower mold fixing seat 43 and used for fixing the lower mold 52 . The lower mold 52 is provided with a clamping portion 521 . The first clamping member 62 fixes the lower mold 52 by clamping the clamping portion 521 .

[0111] Specifically, the first clamping member 62 is provided with a clamping block and a driver for driving the clamping block to merge or separate. The driver may be a hydraulic cylinder or a pneumatic cylinder, preferably a hydraulic cylinder, so that the first clamping member 62 can clamp the clamping portion 521 more firmly.

[0112] The clamping portion 521 is a clamping groove, and the cross-section of the clamping groove is V-shaped. The clamping portion 521 increases the contact area between the first clamping member 62 and the clamping portion 521. On the other hand, the clamping groove appropriately reduces the weight of the lower mold 52, making it easier for the lower mold driver 44 to drive the lower mold 52 to slide.

[0113] The third fixing mechanism includes a plurality of second clamping members 63 arranged on the frame 1 and used to fix the mold outer frame 53. A plurality of fixing grooves 535 are arranged on the side of the mold outer frame 53. The plurality of second clamping members 63 respectively extend into the plurality of fixing grooves 535 and clamp the mold outer frame 53 to fix the mold outer frame 53.

[0114] The second clamping member 63 is a hydraulic cylinder or a gas cylinder. In this embodiment, the second clamping member 63 is taken as an example of a hydraulic cylinder. A plurality of second clamping members 63 are in contact with the fixing groove 535 at the same time, so as to fix the mold outer frame 53.

[0115] like Figure 7 As shown, the conveying mechanism 7 of this embodiment includes a conveying member 72 and a conveying driver 73. The conveying driver 73 is electrically connected to the main control module. The conveying driver 73 drives the conveying member 72 to rotate. The lifting platform 71 is arranged on the conveying member 72. Among them, the conveying driver 73 is a conventional motor, and the conveying member 72 is a conventional conveying chain. The conveying driver 73 is used to transmit the rotational power to the conveying member 72 through a transmission device. The transmission device generally includes a reducer, a coupling, a bearing and other parts.

[0116] A carrier frame 74 is disposed between the lifting platform 71 and the conveying member 72 . A lifting protection member 741 and a lifting driver 742 are disposed at the edge of the carrier frame 74 . The lifting driver 742 drives the lifting protection member 741 to move up and down.

[0117] The inner wall of the lifting protection member 741 is provided with a rolling member 743 which is rollingly connected to the mold outer frame 53 .

[0118] The lifting driver 742 is a conventional hydraulic cylinder or a gas cylinder, the lifting protection member 741 is a lifting limit frame or a lifting limit outer plate, and the rolling member 743 is a bearing, a roller or a ball. In this embodiment, the lifting driver 742 is an example of a gas cylinder, the lifting protection member 741 is an example of a lifting limit frame, and the rolling member 743 is an example of a bearing.

[0119] like Figure 2As shown, the second station 12 of this embodiment is provided with a positioning mechanism for positioning the lifting platform 71, and the positioning mechanism includes a positioning member 15 and a sliding drive 16. The sliding drive 16 is fixed to the frame 1 and drives the positioning member 15 to move telescopically. The sliding drive 16 is electrically connected to the main control module. Among them, the sliding drive 16 is a hydraulic cylinder or a cylinder. In this embodiment, the sliding drive 16 is an example of a cylinder.

[0120] The lifting platform 71 is provided with a contact switch, and the contact switch is electrically connected to the main control module.

[0121] When the transport driver 73 drives the lifting platform 71 to move to the second station 12 through the transmission member 72, the contact switch of the lifting platform 71 contacts the positioning member 15, and the transport driver 73 is controlled to stop. The transport driver 73 drives the lifting platform 71 to move accurately through the transmission member 72, so that the integrated stamping die set 5 carried on the lifting platform 71 can be removed or installed.

[0122] like Figure 2 As shown, the frame 1 of this embodiment is provided with a travel monitoring mechanism 17 for monitoring the position between the upper die fixing base 41 and the lower die fixing base 43 and the frame 1, and the travel monitoring mechanism 17 is electrically connected to the main control module. The travel monitoring mechanism 17 is a photoelectric switch or a contact switch. In this embodiment, the travel monitoring mechanism 17 is an example of a non-contact photoelectric switch.

[0123] like Figure 6 As shown, the upper mold 51 and the lower mold 52 are both provided with a tool protection cavity 55, in which a tool 56 and a telescopic driver 57 for controlling the telescopic movement of the tool 56 are provided, and the telescopic driver 57 is electrically connected to the main control module, and the telescopic driver 57 is fixed in the tool protection cavity 55 and drives the tool 56 to be slidably connected with the tool protection cavity 55, so that the tool 56 is exposed outside the tool protection cavity 55 or retracted into the tool protection cavity 55.

[0124] When the upper die fixing seat 41 and the lower die fixing seat 43 slide to the first position H1 of the preset stroke monitoring mechanism 17 , the telescopic driver 57 drives the tool 56 to slide and retract into the tool protection cavity 55 to protect the tool 56 .

[0125] When the upper die fixing base 41 and the lower die fixing base 43 slide to the second position H2 of the preset stroke monitoring mechanism 17, the telescopic driver 57 drives the tool 56 to slide out of the tool protection cavity 55, so that the tool 56 can punch and cut the strip.

[0126] It should be noted that, after the cutting device 3 cuts the strip, when the integrated stamping die set 5 is removed from the stamping device 4 , the telescopic driver 57 drives the tool 56 to slide and retract into the tool protection cavity 55 to protect the tool 56 .

[0127] like Figure 6 As shown, the tool 56 of this embodiment is arranged obliquely in the tool protection cavity 55, and the tool 56 is provided with a limit block 58 and a limit support member 59, and the limit support member 59 includes a first support segment 591 and a second support segment 592, and the first support segment 591 and the second support segment 592 are hinged, one end of the first support segment 591 is hinged to the limit block 58, and one end of the second support segment 592 is hinged to the inner wall of the tool protection cavity 55.

[0128] When the tool 56 is exposed outside the tool protection cavity 55, the limit block 58 contacts the inner wall of the tool protection cavity 55, and the first support section 591 and the second support section 592 of the limit support member 59 are vertical, so that the limit support member 59 supports the tool 56 to facilitate the tool 56 to punch and cut the strip.

[0129] When the tool 56 slides and retracts into the tool protection cavity 55 , the limit block 58 separates from the inner wall of the tool protection cavity 55 , and the first support section 591 and the second support section 592 of the limit support member 59 are folded to facilitate the tool 56 to slide and retract into the tool protection cavity 55 .

[0130] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. A die changing method for automatically changing a die stamping device, characterized in that: The stamping equipment comprises a frame (1), a material conveying mechanism (2), a cutting device (3), a stamping device (4), an integrated stamping die set (5), a fixing mechanism (6), a conveying mechanism (7), a die detection device and a main control module; A first workstation (11) and a second workstation (12) are provided in the frame (1); the second workstation (12) is provided with a mold changing inlet (13) and a mold changing outlet (14); The strip material conveying mechanism (2) is arranged on the frame (1) and is located between the first workstation (11) and the second workstation (12). The strip material conveying mechanism (2) comprises a feeding end and a receiving end. The feeding end conveys unprocessed strip material, and the receiving end reels processed strip material so that the strip material is kept within a preset tension range. The cutting device (3) is arranged between the material feeding end and the material receiving end and is used to cut the strip material; The punching device (4) comprises an upper die fixing seat (41), an upper die driver (42), a lower die fixing seat (43) and a lower die driver (44); the upper die driver (42) drives the upper die fixing seat (41) to rise and fall and slide at a first station (11); the lower die driver (44) drives the lower die fixing seat (43) to rise and fall and slide at a second station (12); The integrated stamping die set (5) comprises an upper die (51), a lower die (52) and a die outer frame (53); a guide member (54) is provided inside the die outer frame (53); the upper die (51) and the lower die (52) are both stacked inside the die outer frame (53) and are slidably connected to the die outer frame (53) via the guide member (54); The fixing mechanism (6) is used to clamp and fix the upper mold (51) to the upper mold fixing seat (41), clamp and fix the lower mold (52) to the lower mold fixing seat (43), and clamp and fix the mold outer frame (53) to the frame (1); The upper die driver (42) drives the upper die fixing seat (41) to rise and fall and slide, thereby driving the upper die (51) to slide up and down along the guide member (54); the lower die driver (44) drives the lower die fixing seat (43) to rise and fall and slide, thereby driving the lower die (52) to slide up and down along the guide member (54), thereby realizing the stamping and cutting operation of the upper and lower ends of the strip material at the same time; The transport mechanism (7) runs through the die change inlet (13) and the die change outlet (14), and the transport mechanism (7) is provided with a lifting platform (71) for carrying the integrated stamping die set (5); The mold detection device comprises a friction force detection module, and the friction force detection module is used to obtain the friction force between the upper mold (51) and the guide member (54) or the friction force between the lower mold (52) and the guide member (54); The material conveying mechanism (2), the cutting device (3), the punching device (4), the conveying mechanism (7), the fixing mechanism (6) and the mold detection device are all electrically connected to the main control module; Die changing method for stamping equipment: A. obtaining a friction force value between the upper die (51) and the guide member (54) or a friction force value between the lower die (52) and the guide member (54) through a die detection device and feeding it back to a main control module. The main control module compares the fed-back friction force value with a preset value. If the fed-back friction force value is greater than the preset value, the stamping device (4) is controlled to stop. B. controlling the feeding end of the belt conveying mechanism (2) to stop conveying the belt, the cutting device (3) to cut the belt, and the receiving end of the belt conveying mechanism (2) to reel in the cut belt; C. The upper die driver (42) drives the upper die fixing seat (41) to slide downward and approach the die outer frame (53). The upper die (51) slides downward along the guide member (54) as the upper die fixing seat (41) slides downward and contacts the lower die (52). The upper die driver (42) stops, and the fixing mechanism (6) is controlled to release the upper die (51) so that the upper die (51) is stacked on the lower die (52). The fixing mechanism (6) is controlled to release the lower die (52). The lower die driver (44) drives the lower die fixing seat (43) to slide downward, and the lower die (52) contacts the die outer frame (53). The lower die driver (44) The lower die fixing seat (43) is continuously driven to slide downward and away from the die outer frame (53), and then the machine is stopped, so that the upper die (51) and the lower die (52) stacked on the lower die (52) are both carried in the die outer frame (53); the lifting platform (71) is controlled to rise and carry the die outer frame (53), and the fixing mechanism (6) is controlled to release the die outer frame (53), so that the die outer frame (53) is separated from the frame (1) and carried on the lifting platform (71); the lifting platform (71) is lowered, and the transport mechanism (7) transports the lifting platform (71) away from the frame (1), so that the integrated stamping die set (5) is unloaded from the stamping device (4); D. Control the transport mechanism (7) to carry another integrated stamping die set (5) via the lifting platform (71) and transport it to the second workstation (12) in the frame (1), control the lifting platform (71) to rise and lift up the carrying die outer frame (53), control the fixing mechanism (6) to clamp the die outer frame (53) so that the die outer frame (53) is fixed to the frame (1); the lower die driver (44) drives the lower die fixing seat (43) to rise and slide into the die outer frame (53) and contact the lower die (52), and the lower die driver (44) The machine is stopped, and the fixing mechanism (6) is controlled to clamp the lower die (52), so that the lower die (52) is fixed to the lower die fixing seat (43); the upper die driver (42) drives the upper die fixing seat (41) to slide downward and approach the die outer frame (53), so that the upper die fixing seat (41) contacts the upper die (51), and the upper die driver (42) is stopped, and the fixing mechanism (6) is controlled to clamp the upper die (51), so that the upper die (51) is fixed to the upper die fixing seat (41), thereby realizing that the integrated stamping die set (5) is installed on the stamping device (4).

2. The mold changing method according to claim 1, characterized in that: An upper opening (531) and a lower opening (532) are respectively provided at the upper and lower ends of the mold outer frame (53); the upper mold (51) is exposed outside the mold outer frame (53) through the upper opening (531), and the lower mold fixing seat (43) extends into the mold outer frame (53) through the lower opening (532); The mold detection device further comprises a temperature detection module, the mold outer frame (53) is provided with a temperature detection blind hole (533), and the temperature detection module obtains temperature information of the mold outer frame (53) through the temperature detection blind hole (533) and feeds it back to the main control module; The mold outer frame (53) is provided with a temperature detection groove (534) extending therethrough corresponding to the guide member (54); the temperature detection module obtains temperature information of the guide member (54) through the temperature detection groove (534) and feeds it back to the main control module.

3. The mold changing method according to claim 1, characterized in that: The material conveying end of the belt conveying mechanism (2) comprises a material conveyor (21), a first bearing member (22) and a first displacement driver (23); The material receiving end of the belt conveying mechanism (2) comprises a material receiver (24), a second bearing member (25) and a second displacement driver (26); The first bearing member (22) and the second bearing member (25) are both slidably connected to the frame (1) and are arranged horizontally relative to each other. The first bearing member (22) and the second bearing member (25) are both provided with a conveying channel for conveying the belt material. The first displacement driver (23) is fixed to the frame (1) and drives the first bearing member (22) to slide along the frame (1). The second displacement driver (26) is fixed to the frame (1) and drives the second bearing member (25) to slide along the frame (1).

4. The mold changing method according to claim 3, characterized in that: Working method of the belt conveyor mechanism (2): B1. When the integrated stamping die set (5) is installed on the stamping device (4), the first displacement driver (23) drives the first carrier (22) to move closer to the second carrier (25), and the second displacement driver (26) drives the second carrier (25) to move closer to the first carrier (22), so that the first carrier (22) and the second carrier (25) are in conflict with each other; B2. The strip material is transported from the feeder (21) to the receiver (24) along the conveying channel through the cutting device (3); B3. The first displacement driver (23) drives the first carrier (22) away from the second carrier (25), and the second displacement driver (26) drives the second carrier (25) away from the first carrier (22), so that the first carrier (22) and the second carrier (25) are separated, and the strip is horizontally arranged between the upper mold (51) and the lower mold (52) and controlled within a preset tension range; B4. When the cutting device (3) cuts the strip, the reel (24) reels the cut strip; B5. The first displacement driver (23) drives the first carrier (22) away from the second carrier (25), and the second displacement driver (26) drives the second carrier (25) away from the first carrier (22), so that the first carrier (22) and the second carrier (25) are separated to make room for the upper mold (51) to descend, thereby preventing the first carrier (22) and the second carrier (25) from interfering with the descent of the upper mold (51).

5. The mold changing method according to claim 3 or 4, characterized in that: The cutting device (3) comprises a slide (31), a cutter (32), a carrier plate (33) and a cutting drive (34); the slide (31) and the carrier plate (33) are fixed in a conveying passage of a first carrier (22); the cutter (32) is slidably connected to the slide (31); and the cutting drive (34) is fixed to the slide (31) and drives the cutter (32) to approach or move away from the carrier plate (33).

6. The mold changing method according to claim 1, characterized in that: The fixing mechanism (6) comprises a first fixing mechanism, a second fixing mechanism and a third fixing mechanism, The first fixing mechanism comprises a plurality of negative pressure suction heads (61) arranged on the upper mold fixing seat (41) and used to fix the upper mold (51), the upper mold (51) being provided with a plurality of fixing blind holes (511), and the plurality of negative pressure suction heads (61) respectively adsorb and fix the upper mold (51) through the plurality of fixing blind holes (511); The second fixing mechanism comprises a first clamping member (62) arranged on the lower mold fixing seat (43) and used to fix the lower mold (52), the lower mold (52) being provided with a clamping portion (521), and the first clamping member (62) fixes the lower mold (52) by clamping the clamping portion (521); The third fixing mechanism comprises a plurality of second clamping members (63) arranged on the frame (1) and used to fix the mold outer frame (53); a plurality of fixing grooves (535) are arranged on the side of the mold outer frame (53); the plurality of second clamping members (63) respectively extend into the plurality of fixing grooves (535) and clamp the mold outer frame (53), thereby fixing the mold outer frame (53).

7. The mold changing method according to claim 1, characterized in that: The transport mechanism (7) comprises a transport member (72) and a transport driver (73), wherein the transport driver (73) is electrically connected to a main control module, the transport driver (73) drives the transport member (72) to rotate, and the lifting platform (71) is arranged on the transport member (72); A carrier frame (74) is arranged between the lifting platform (71) and the conveying member (72); a lifting protection member (741) and a lifting driver (742) are arranged on the edge of the carrier frame (74); the lifting driver (742) drives the lifting protection member (741) to move up and down; The inner wall of the lifting protection member (741) is provided with a rolling member (743) which is rollingly connected to the mold outer frame (53).

8. The mold changing method according to claim 7, characterized in that: The second workstation (12) is provided with a positioning mechanism for positioning the lifting platform (71), the positioning mechanism comprising a positioning member (15) and a sliding drive (16), the sliding drive (16) being fixed to the frame (1) and driving the positioning member (15) to telescopically move, the sliding drive (16) being electrically connected to the main control module; The lifting platform (71) is provided with a contact switch, and the contact switch is electrically connected to the main control module; When the transport driver (73) drives the lifting platform (71) to move to the second workstation (12) via the transmission member (72), and the contact switch of the lifting platform (71) contacts the positioning member (15), the transport driver (73) is controlled to stop.

9. The mold changing method according to claim 1, characterized in that: The frame (1) is provided with a stroke monitoring mechanism (17) for monitoring the position between the upper die fixing seat (41) and the lower die fixing seat (43) and the frame (1), and the stroke monitoring mechanism (17) is electrically connected to the main control module; The upper mold (51) and the lower mold (52) are both provided with a tool protection cavity (55), a tool (56) and a telescopic driver (57) for controlling the telescopic movement of the tool (56) are provided in the tool protection cavity (55), the telescopic driver (57) is electrically connected to the main control module, the telescopic driver (57) is fixed in the tool protection cavity (55) and drives the tool (56) to be slidably connected to the tool protection cavity (55), so that the tool (56) is exposed outside the tool protection cavity (55) or is retracted in the tool protection cavity (55); When the upper die fixing seat (41) and the lower die fixing seat (43) slide to a first position H1 of a preset stroke monitoring mechanism (17), the telescopic driver (57) drives the tool (56) to slide and retract into the tool protection cavity (55); When the upper die fixing seat (41) and the lower die fixing seat (43) slide to the second position H2 of the preset stroke monitoring mechanism (17), the telescopic driver (57) drives the tool (56) to slide and appear outside the tool protection cavity (55).

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