Horizontal automatic component replacement and insertion machine

Abstract

The present invention provides a horizontal automatic component replacement and plug-in machine, which includes a blanking mechanism, a plug-in mechanism, and a straight feeding mechanism. The horizontal automatic component replacement and plug-in machine of the present invention directly connects the plug-in mechanism and the blanking mechanism through a straight frame, and the conveying chain is arranged along the straight frame. The conveying chain has fewer bending structures, and the conveying is smoother and more stable. It is not easy to deviate or jam, and the working efficiency is high. At the same time, by arranging the blanking shrapnel, the stability of the shearing of the electronic components can be improved, the electronic components that have passed through the blanking shrapnel can be prevented from backflowing, and the electronic components that have not passed through the blanking shrapnel can be prevented from being over-conveyed, and the electronic component unloading can be accurately and stably controlled. When the electronic component at a specific position fails to be inserted, the conveying chain can drive the double-hook chain clamp at a specific position to return to the corresponding blanking station device for replacement. The electronic components that have not been completed can remain clamped on the double-hook chain clamp without falling off, and automatic and rapid replacement can be achieved.

Description

Technical Field

[0001] The present invention relates to the field of plug-in machines, and in particular to a horizontal automatic component-replacing plug-in machine. Background Art

[0002] An inserter is a mechanical device that automatically, accurately, and quickly inserts or mounts electronic components onto a circuit board. In the prior art, many inserter feeding mechanisms use chains to transport electronic components. The chains have multiple conveying sections at different locations, and adjacent conveying sections are connected in a zigzag pattern, resulting in large cumulative transmission errors. This also causes greater fluctuations in chain tension, resulting in uneven and unstable conveying, and the grasping position of electronic components is prone to deviation. Furthermore, the unloading station device of the inserter in the prior art also suffers from unstable shearing during individual conveying. The accuracy issues of unloading and feeding in the inserter restrict the assembly efficiency and reliability of electronic components.

[0003] Therefore, it is necessary to provide a horizontal automatic component replacement and insertion machine to solve the above technical problems. Summary of the Invention

[0004] The present invention provides a horizontal automatic component-replacing and plug-in machine to solve the problem in the prior art that the accuracy of blanking and feeding of plug-in machines restricts the assembly efficiency and reliability of electronic components.

[0005] To solve the above technical problems, the technical solution of the present invention is: a horizontal automatic component replacement and insertion machine, comprising: a blanking mechanism, an insertion mechanism, and a straight feeding mechanism, wherein the blanking mechanism comprises a blanking frame and a blanking station device provided on the blanking frame, and the insertion mechanism comprises an insertion frame;

[0006] The flat feeding mechanism includes a flat frame, a conveying chain, a double-hook chain clamp and a conveying drive mechanism;

[0007] The two ends of the flat frame are respectively connected to the plug-in rack and the blanking rack, the blanking station device is located above the flat frame, a plurality of guide sprockets are provided on the flat frame, the inner side of the conveyor chain is transmission-connected to the guide sprocket to form a closed-loop structure, the two conveyor chains are arranged in parallel, the double-hook chain clamp is arranged on the side where the two conveyor chains are close to each other, the conveying drive mechanism is fixedly connected to the flat frame, the output end of the conveying drive mechanism is connected to one of the guide sprockets, and the conveying chain drives the double-hook chain clamp to move to convey the electronic components output by the blanking mechanism to the plug-in mechanism;

[0008] The blanking station device includes: a station body plate, a blanking track block, a main driving rod, a gear cutter, a block cutter, and a blanking spring piece;

[0009] The two guide rails are provided with a side of the station body plate, and the two sides of the two guide rails that are close to each other are provided with a guide groove, and the electronic components are guided and transported between the two guide grooves. The guide groove passes through the top surface of the blanking track block to form an inlet, and the guide groove passes through the bottom surface of the blanking track block to form an outlet. The main driving rod is rotatably connected to the station body plate, and the main driving rod is located below the outlet. The gear cutter is fixedly connected to the main driving rod, and the block cutter is fixedly connected to the station body plate. The gear cutter and the block cutter are provided on the extension track of each guide groove, and the gear cutter and the block cutter intersect along the axial direction of the main driving rod. The gear cutter rotates and cooperates with the block cutter to shear the pins of the electronic components, so that the electronic components are separated from the material strip, and the blanking spring piece is located between the two blanking track blocks, one end of the blanking spring piece is fixedly connected to the station body, and the other end of the blanking spring piece extends between the two guide grooves.

[0010] In the present invention, the flat feeding mechanism further comprises a vertical guide groove rod provided on the flat frame, and a first transverse guide groove rod and a second transverse guide groove rod perpendicular to the vertical guide groove rod, one side of each of the vertical guide groove rod, the first transverse guide groove rod and the second transverse guide groove rod is provided with a guide groove for guiding the movement of the conveyor chain, and a guide plate for directionally cooperating with the cooperating groove on the double-hook chain clamp;

[0011] The first transverse guide groove rod and the second transverse guide groove rod are arranged in parallel, the first transverse guide groove rod is located above the second transverse guide groove rod, the two ends of the first transverse guide groove are respectively connected to the plug-in rack and the blanking rack, one end of the second transverse guide groove is connected to the blanking rack, the vertical guide groove rod is connected to the plug-in rack, one end of the vertical guide groove rod is connected to the first transverse guide groove rod, and the other end of the vertical guide groove rod is connected to the second transverse guide groove rod.

[0012] In which, the straight feeding mechanism also includes a tensioning frame and a tensioning mechanism, the tensioning frame is arranged between the vertical guide groove rod and the second transverse guide groove rod, the tensioning mechanism includes a tensioning rod elastically rotatably arranged on the tensioning frame, and a tensioning sprocket rotatably arranged on the tensioning rod, and the tensioning sprocket transmission is engaged on the inner side of the conveying chain.

[0013] Furthermore, the top end of the side of the tensioning rod is rotatably connected to the tensioning frame, the bottom end of the side of the tensioning rod is rotatably connected to the tensioning sprocket, the middle part of the tensioning rod is elastically connected to the tensioning frame through a tension spring, and the conveying chain passes through the bottom of the tensioning sprocket and the top of the guide sprocket in turn and extends into the second transverse guide groove rod.

[0014] In the present invention, the blanking spring piece is a U-shaped structure, the middle part of the blanking spring piece is fixedly connected to the station body, and the two ends of the blanking spring piece extend between the two guide grooves;

[0015] The unloading station device also includes a rubber wheel, which is sleeved on the outer periphery of the main driving rod. The two ends of the unloading spring are blocking ends, and the blocking ends contact with the rubber wheel to form a curved structure. The curved convex side of the blocking end faces the inlet.

[0016] Furthermore, the guide groove includes an arc-shaped groove segment, the center of the arc-shaped groove segment is located on the central axis of the main driving rod, and the circumferential surface of the rubber wheel is located within the axial extension area of ​​the arc-shaped groove segment;

[0017] A rubber wheel is provided corresponding to the position of each stop end, and the stop end is in elastic contact with the circumferential surface of the rubber wheel. When the gear cutter and the block cutter cut the pins of the electronic components, the pins of the electronic components are simultaneously located between the stop end and the rubber wheel.

[0018] In addition, the blanking station device also includes a limiting spring piece, which includes a mounting plate and a spring piece body. The mounting plate is connected between the two blanking track blocks, one end of the spring piece body is connected to the middle of the mounting plate, and the other end of the spring piece body extends between the two guide grooves. The spring piece body is an arc-shaped plate structure corresponding to the circumferential surface of the rubber wheel. When the gear cutter and the block cutter shear the pins of the electronic components, the electronic components in the guide groove contact one side of the arc-shaped protrusion of the spring piece body.

[0019] A plurality of unloading grooves are provided on one end of the spring body close to the mounting plate.

[0020] In the present invention, a notch is provided at the bottom end of the blanking track block, the guide groove is connected to the notch, and the gear cutter and the block cutter are located in the notch;

[0021] The unloading station device also includes a material baffle plate, one end of which extends into the notch, the gear cutter and the block cutter are located on the side of the material baffle plate close to the notch, the material baffle plate includes a first plate body and a second plate body, the first plate body and the second plate body are connected to form an L-shaped structure, the extension plane of the first plate body is perpendicular to the extension plane of the second plate body, the first plate body is connected to the side of the unloading track block away from the station body plate, and the second plate body extends into the notch.

[0022] Among them, the unloading station device also includes a paper stop belt block, which is connected to the side of the unloading track block away from the station body plate, and the paper stop belt block extends on the side of the slot away from the station body plate.

[0023] In addition, the unloading station device also includes a brake gear, a brake pulley, a brake body, and a brake spring;

[0024] The brake gear is fixedly connected to the main driving rod, the brake body is rotatably connected to the station body plate, the brake pulley is rotatably set on the brake body, the brake gear is located on the trajectory of the brake pulley rotating with the brake body, the brake spring is compressed and set between the brake body and the station body plate, and the brake spring is used to drive the brake body to rotate in the direction close to the brake gear, so that the brake pulley is engaged with the brake gear.

[0025] Compared to existing technologies, the present invention offers the following advantages: The horizontal automatic component insertion machine of the present invention utilizes a flat frame directly connecting the insertion mechanism and the blanking mechanism. The conveyor chain is arranged along the flat frame, resulting in a less curved conveyor chain and a reduced number of guide sprockets. This results in smoother and more stable conveying, less prone to deviation and jamming, and improved operating efficiency. Furthermore, the shorter conveyor chain and closer distance between the blanking mechanism and the insertion mechanism reduce the overall width of the insertion machine, making it more compact and smaller in overall size.

[0026] At the same time, by setting the blanking shrapnel, the stability of the shearing of the electronic components can be improved, and the backflow of the electronic components that have passed through the blanking shrapnel can be prevented, while the excessive delivery of the electronic components that have not passed through the blanking shrapnel can be prevented, and the blanking of the electronic components can be accurately and stably controlled.

[0027] In addition, since an annular conveyor chain is used to directly transport electronic components between the plug-in mechanism and the unloading mechanism, when the electronic component at a specific position fails to be inserted, the conveyor chain can drive the double-hook chain clamp at a specific position to return to the corresponding unloading station device for replacement. The electronic components that have not been completed can remain clamped on the double-hook chain clamp without falling off, and automatic and rapid replacement can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. The drawings described below are only drawings corresponding to some embodiments of the present invention.

[0029] Figure 1 It is a structural schematic diagram of the horizontal automatic component replacement and insertion machine of the present invention.

[0030] Figure 2It is a structural schematic diagram of the straight feeding mechanism and the unloading station in the present invention.

[0031] Figure 3 It is a structural schematic diagram of the tensioning frame and tensioning mechanism of the straight feeding mechanism in the present invention.

[0032] Figure 4 It is a structural schematic diagram of the upper waste foot removing mechanism of the straight feeding mechanism in the present invention.

[0033] Figure 5 It is a structural schematic diagram of the lower waste foot removal mechanism of the straight feeding mechanism in the present invention.

[0034] Figure 6 It is a structural schematic diagram of the unloading station device in the present invention.

[0035] Figure 7 This is a partial enlarged view of the gear cutter and block cutter of the blanking station device in the present invention.

[0036] Figure 8 It is an enlarged view of the local structure of the blanking spring piece of the blanking station device in the present invention.

[0037] Figure 9 This is an enlarged view of the local structure when the limiting spring piece is provided in the blanking station device of the present invention.

[0038] Figure 10 Schematic diagram of the connection structure of electronic components and material strips in the present invention.

[0039] Figure 11 It is a schematic structural diagram of the double-hook chain clamp in the present invention.

[0040] Figure 12 This is a schematic structural diagram of the double-hook chain clamp in the present invention from another perspective.

[0041] Figure 13 It is a schematic diagram of the exploded structure of the double-hook chain clamp in the present invention. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of the present invention.

[0043] Directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", "top" and "bottom", are only used with reference to the directions of the drawings. The directional terms used are used to illustrate and understand the present invention, and are not used to limit the present invention.

[0044] The terms "first" and "second" in the present invention are used for descriptive purposes only and should not be understood as indicating or implying relative importance, and should not be used as a limitation on the order of precedence.

[0045] In the present invention, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, connection can be a detachable connection or an integral structural connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be internal communication between two components or an interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0046] In the prior art, the unloading mechanism and feeding mechanism of the insertion machine have problems of instability and poor accuracy in unloading and feeding, which restrict the assembly efficiency and reliability of electronic components.

[0047] The following is a preferred embodiment of a horizontal automatic component replacement and insertion machine provided by the present invention that can solve the above technical problems.

[0048] Please refer to Figure 1 and Figure 2 In the figures, units with similar structures are represented by the same reference numerals.

[0049] This embodiment provides a horizontal automatic component replacement and insertion machine, which includes a blanking mechanism 11 , an insertion mechanism 12 , and a flat feeding mechanism 13 .

[0050] The unloading mechanism 11 includes an unloading rack 111 and an unloading station 112 mounted on the unloading rack 111. The plug-in mechanism 12 includes a plug-in rack 121. The straight feed mechanism 13 is used to deliver the electronic components output by the unloading mechanism 11 to the plug-in mechanism 12. The plug-in mechanism 12 performs pin cutting and plug-in operations on the electronic components delivered by the straight feed mechanism 13.

[0051] Please refer to Figure 2 In this embodiment, the flat feeding mechanism 13 includes a flat frame 131 , a conveying chain 14 , a double-hook chain clamp 141 and a conveying drive mechanism 15 .

[0052] The two ends of the flat frame 131 are connected to the blanking frame 111 and the plug-in frame 121 respectively, and the blanking station device 112 is located above the flat frame 131. A plurality of guide sprockets 132 are provided on the flat frame 131.

[0053] The inner sides of the conveyor chains 14 are connected to the guide sprockets 132, forming a closed loop. The two conveyor chains 14 are arranged in parallel. Double-hook chain clamps 141 are located on the sides of the two conveyor chains 14 that are close to each other. The ends of the electronic components are clamped in the double-hook chain clamps 141 on the two conveyor chains 14, one-to-one, for stable transportation.

[0054] The conveyor drive mechanism 15 is fixedly connected to the flat frame 131. The output end of the conveyor drive mechanism 15 is connected to a guide sprocket 132, thereby driving the two conveyor chains 14 to circulate. The conveyor chains 14 drive the double-hook chain clamp 141 to move, thereby conveying the electronic components output by the unloading mechanism 11 to the insertion mechanism 12.

[0055] Please refer to Figure 6 and Figure 7 The blanking station device 112 includes: a station body plate 21, a blanking track block 22, a main driving rod 23, a gear cutter 27, a block cutter 28, and a blanking shrapnel 29.

[0056] Two unloading track blocks 22 are arranged on one side of the station body plate 21, and the two unloading track blocks 22 are provided with a guide groove 221 on the side close to each other. The electronic components 31 are guided and transported between the two guide grooves 221. The guide groove 221 passes through the top surface of the unloading track block 22 to form an inlet, and the guide groove 221 passes through the bottom surface of the unloading track block 22 to form an outlet.

[0057] The main driving rod 23 is rotatably connected to the station body plate 21, and the main driving rod 23 is located below the outlet. It should be noted that end plates 211 for rotatably setting the main driving rod 23 can be provided at both ends of one side of the station body plate 21.

[0058] The gear cutter 27 is fixedly connected to the main drive rod 23, and the block cutter 28 is fixedly connected to the station body plate 21. A gear cutter 27 and a block cutter 28 are provided on the extension track of each guide groove 221. The gear cutter 27 and the block cutter 28 intersect along the axial direction of the main drive rod 23. When the pins of the electronic components 31 are transported to the intersection of the gear cutter 27 and the block cutter 28, the gear cutter 27 rotates and cooperates with the block cutter 28 to shear the pins of the electronic components 31, so that the electronic components 31 are separated from the material belt 32, and then the electronic components 31 can fall onto the corresponding double-hook chain clamp for transportation and loading.

[0059] A blanking spring 29 is located between the two blanking track blocks 22. One end of the blanking spring 29 is fixedly connected to the station body, and the other end of the blanking spring 29 extends between the two guide slots 221. The blanking spring 29 provides a certain barrier to the electronic components 31, preventing the backflow of electronic components that have passed through the blanking spring 29 and preventing the over-conveying of electronic components that have not passed through the blanking spring 29 (over-conveying can easily cause two electronic components to be conveyed simultaneously during the next conveying stroke), thereby accurately and stably controlling the unloading of electronic components.

[0060] Please refer to Figure 11-13 It should be noted that the double-hook chain clamp 141 includes a chain clamp block 1411 , a chain clamp pressing plate 1412 , an elastic member 1416 , and a sliding plate 1413 .

[0061] The chain clamp block 1411 includes a through-mounted mounting groove 14112, and two chain clamp pressure plates 1412 are elastically rotated in the mounting groove 14112 by means of an elastic member 1416. The two ends of the chain clamp pressure plate 1412 are respectively a driving end 14121 and a clamping end 14122. The driving end 14121 and the clamping end 14122 extend outside the two ends of the mounting groove 14112 respectively. The sliding plate 1413 is covered and arranged near the clamping end 141 On one side of the sliding plate 1413, a avoiding hole 14131 corresponding to the mounting groove 14112 is provided on the sliding plate 1413. The driving force of the elastic member 1416 enables the clamping ends 14122 of the two chain clamp pressure plates 1412 to clamp the electronic components on the sliding plate 1413 from different sides of the electronic components. When the driving end 14121 is squeezed, it can overcome the elastic force of the elastic member 1416 and drive the two clamping ends 14122 away from each other, thereby releasing the clamping of the electronic components.

[0062] The straight feeding mechanism 13 in this embodiment is further described in detail as follows.

[0063] Please refer to Figure 2 and Figure 4 The flat feeding mechanism 13 in this embodiment further includes a vertical guide groove rod 1313 provided on the flat frame 131 , and a first transverse guide groove rod 1311 and a second transverse guide groove rod 1312 perpendicular to the vertical guide groove rod 1313 .

[0064] A slide groove 14111 is also provided on the chain clamp block 1411 , and the groove direction of the slide groove 14111 is consistent with the extension direction of the clamping end 14122 . A bearing 1415 is provided in the slide groove 14111 , and the axial direction of the bearing 1415 is parallel to the rotation axis of the chain clamp pressure plate 1412 .

[0065] One side of the vertical guide groove rod 1313, the first transverse guide groove rod 1311 and the second transverse guide groove rod 1312 is provided with a guide groove for guiding the movement of the conveyor chain 14, and a guide plate for directional cooperation with the slide groove 14111. Figure 5 The guide groove 13111 on one side of the first horizontal guide groove rod 1311, the guide plate please refer to Figure 5 The guide plate 13112 is located on one side of the first transverse guide groove rod 1311.

[0066] Please refer to Figure 4 The guide groove cooperates with the conveyor chain 14, and the guide plate 13112 cooperates with the slide groove 14111 and contacts with the bearing 1415, so that the double-hook chain clamp 141 can move stably in a cycle with the conveyor chain 14, realizing the smooth movement of the double-hook chain clamp 141 on the flat frame 131.

[0067] Please refer to Figure 4 and Figure 13 In addition, a positioning protrusion 14116 is provided on one side extending from the driving end 14121 of the chain clamp block 1411, and a directional groove for slidingly cooperating with the positioning protrusion 14116 is provided in the guide groove. The cooperation between the positioning protrusion 14116 and the directional groove can further limit the sliding trajectory of the chain clamp block 1411. At the same time, the chain clamp block 1411 can also be stably stopped on the flat frame 131, which is convenient for removing electronic components from the double-hook chain clamp 141.

[0068] Please refer to Figure 2 In this embodiment, the first transverse guide groove rod 1311 and the second transverse guide groove rod 1312 are arranged in parallel, the first transverse guide groove rod 1311 is located above the second transverse guide groove rod 1312, the two ends of the first transverse guide groove are respectively connected to the plug-in rack 121 and the blanking rack 111, one end of the second transverse guide groove is connected to the blanking rack 111, the vertical guide groove rod 1313 is connected to the plug-in rack 121, one end of the vertical guide groove rod 1313 is connected to the first transverse guide groove rod 1311, and the other end of the vertical guide groove rod 1313 is connected to the second transverse guide groove rod 1312.

[0069] Please refer to Figure 2 and Figure 3 , wherein the straight feeding mechanism 13 also includes a tensioning frame 161 and a tensioning mechanism. The tensioning frame 161 is arranged between the vertical guide groove rod 1313 and the second horizontal guide groove rod 1312. The tensioning mechanism includes a tensioning rod 162 elastically rotatably arranged on the tensioning frame 161, and a tensioning sprocket 163 rotatably arranged on the tensioning rod 162. The tensioning sprocket 163 is transmission-matched on the inner side of the conveying chain 14.

[0070] Please refer to Figure 2More specifically, guide sprockets 132 are provided between the first transverse guide groove rod 1311 and the second transverse guide groove rod 1312 at one end away from the plug-in mechanism 12, between the vertical guide groove rod 1313 and the first transverse guide groove rod 1311, between the vertical guide groove rod 1313 and the tensioning mechanism, and between the tensioning mechanism and the second transverse guide groove rod 1312.

[0071] The conveying chain 14 can circulate stably along the vertical guide groove rod 1313, the first transverse guide groove rod 1311 and the second transverse guide groove rod 1312, so that the conveying chain has fewer bending structures. At the same time, through the tensioning effect of the tensioning sprocket 163 on the conveying chain 14, the conveying chain 14 can circulate more smoothly and stably, is less likely to deviate or get stuck, and has high work efficiency.

[0072] Please refer to Figure 3 In this embodiment, the tensioning frame 161 is a frame-shaped structure, with two tensioning mechanisms disposed inside the tensioning frame 161. The top end of the tensioning rod 162 is rotatably connected to the tensioning frame 161, while the bottom end of the tensioning rod 162 is rotatably connected to the tensioning sprocket 163. The middle portion of the tensioning rod 162 is elastically connected to the tensioning frame 161 via a tension spring 164. The conveyor chain 14 sequentially passes through the bottom of the tensioning sprocket 163 and the top of the guide sprocket 132, extending into the second transverse guide groove rod 1312.

[0073] Please refer to Figure 2 and Figure 4 In this embodiment, the straight feeding mechanism 13 also includes a pressure wheel 133, which is rotatably connected to the straight frame 131 through a wheel axle. The pressure wheel 133 is located at the top of the first transverse guide groove rod 1311 near one end of the plug-in mechanism 12. The pressure wheel 133 is located above the moving track of the double-hook chain clamp 141, and is used to form a moving guide for the double-hook chain clamp 141 to ensure stable movement of the double-hook chain clamp 141.

[0074] Please refer to Figure 4 and Figure 5 In this embodiment, the flat feeding mechanism 13 also includes an upper waste foot removal mechanism. It should be noted that a detection sensor can be installed on the flat frame 131 to detect unqualified electronic components. The upper waste foot removal mechanism can then squeeze and remove the unqualified electronic components from the double-hook chain clamp 141. Alternatively, if the insertion mechanism 12 fails to insert an electronic component, the double-hook chain clamp 141 that needs to be replenished is moved to the position of the upper waste foot removal mechanism, and the upper waste foot removal mechanism squeezes and removes the waste electronic components on the double-hook chain clamp 141.

[0075] Specifically, the upper waste foot removing mechanism includes an upper waste foot removing cylinder 174 , a waste scraping rod 175 , an upper material guide trough 179 and an upper air nozzle 176 .

[0076] The scraper rod 175 is connected to the output end of the upper scrap foot removal cylinder 174. Both the scraper rod 175 and the upper scrap foot removal cylinder 174 are located below the first transverse guide groove rod 1311. The scraper rod 175 is opposite the movement trajectory of the electronic components. The upper guide trough 179 is located below the upper scrap foot removal cylinder 174. The upper air nozzle 176 is connected to a corresponding blowing device and is located above the first transverse guide groove rod 1311 and opposite the scraper rod 175. The upper scrap foot removal cylinder 174 drives the scraper rod 175 to move upward to squeeze the electronic component waste. In conjunction with the air blowing from the upper air nozzle 176, the electronic component waste smoothly falls into the upper guide trough 179.

[0077] In addition, the straight feeding mechanism 13 also includes a lower waste pin removal mechanism. After insertion, the pins left on the double-hook chain clamp 141 can be removed by the lower waste pin removal mechanism.

[0078] The lower waste foot removing mechanism includes a lower waste foot removing cylinder 177 , an extrusion block 178 , and a lower guide chute 172 .

[0079] The extrusion block 178 is connected to the output end of the lower waste foot removal cylinder 177. The extrusion block 178 and the lower waste foot removal cylinder 177 are both arranged above the second transverse guide groove rod 1312. The extrusion block 178 is opposite to the moving trajectory of the double-hook chain clamp 141. The extrusion block 178 is used to squeeze the chain clamp pressure piece 1412 of the double-hook chain clamp 141, so that the chain clamp pressure piece 1412 overcomes the elastic force to release the clamping of the electronic components. The lower material guide groove 172 is located below the second transverse guide groove rod 1312 and is opposite to the extrusion block 178. After the chain clamp pressure piece 1412 is opened, the pin waste falls into the lower material guide groove 172.

[0080] Please refer to Figure 2 、 Figure 4 and Figure 5 The tops of the upper and lower guide troughs 179 and 172 are each provided with an input port, and the bottoms of both are provided with an output port. The output port of the upper guide trough 179 interfaces with the input port of the lower guide trough 172. The flat feed mechanism 13 also includes a waste foot guide plate 173 and a waste foot collection box 171. The waste foot guide plate 173 is tilted below the lower guide trough 172, and the waste foot collection box 171 is located at the lower end of the waste foot guide plate 173. The waste flows from the upper and lower guide troughs 179 and 172 into the waste foot collection box 171 through the waste foot guide plate 173.

[0081] The unloading station device 112 in this embodiment is further described in detail as follows.

[0082] Please refer to Figure 6 and Figure 7 In this embodiment, the blanking spring 29 is a U-shaped structure. The middle portion of the blanking spring 29 is fixedly connected to the station body, and the two ends of the blanking spring 29 extend between the two guide grooves 221. It can form a certain obstruction for the pins of the electronic components 31 to prevent the electronic components 31 from being transported abnormally.

[0083] The unloading station 112 further includes a rubber wheel 241, which is sleeved on the outer circumference of the main drive rod 23. The two ends of the unloading spring 29 are stoppers 291, which contact the rubber wheel 241 to form a curved structure. The curved convex side of the stopper 291 faces the inlet, which facilitates the pins of the electronic components 31 to break through the resistance of the unloading spring 29 along the circumference of the rubber wheel 241 and be output, while preventing the pins from flowing back toward the inlet.

[0084] Specifically, the guide groove 221 includes an arcuate groove segment that allows the electronic component 31 to be transported along the circumferential trajectory of the gear cutter 27. The center of the arcuate groove segment is located on the central axis of the main drive rod 23, and the circumferential surface of the rubber wheel 241 is located within the axial extension area of ​​the arcuate groove segment.

[0085] A rubber wheel 241 is provided at each stopper end 291, and the stopper end 291 is in elastic contact with the circumferential surface of the rubber wheel 241. When the gear cutter 27 and the block cutter 28 shear the leads of the electronic component 31, the leads of the electronic component 31 are simultaneously located between the stopper end 291 and the rubber wheel 241, which improves the stability of the gear cutter 27 and the block cutter 28 in shearing the leads of the electronic component.

[0086] In this embodiment, the unloading station device 112 also includes a fixed spring 242, which is sleeved on the outer periphery of the main driving rod 23. The fixed spring 242 is compressed and set between the two rubber wheels 241, and the positions of the two rubber wheels 241 are limited by the fixed spring 242.

[0087] Furthermore, the gear cutter 27 includes circumferential teeth. The inner ends of the teeth are located within the axial extension of the arcuate slot, while the outer ends of the teeth (the end of the teeth facing away from the gear cutter 27) are located outside the axial extension of the arcuate slot. This ensures that the leads of the electronic components 31 are stably confined between the tooth grooves between the teeth and the inner wall of the arcuate slot, allowing for stable conveyance of the electronic components 31 while ensuring that the leads of the electronic components 31 are reliably sheared by the gear cutter 27 and the block cutter 28.

[0088] Please refer to Figure 9In this embodiment, the blanking station device 112 may further include a limiting spring 2B, which includes a mounting plate 2B1 and a spring body 2B2. The mounting plate 2B1 is connected between the two blanking track blocks 22. The mounting plate 2B1 may be designed with L-shaped lug structures at both ends to connect with the blanking track blocks 22.

[0089] One end of the shrapnel body 2B2 is connected to the middle part of the mounting plate 2B1, and the other end of the shrapnel body 2B2 extends between the two guide grooves 221. The shrapnel body 2B2 is an arc-shaped plate structure corresponding to the circumferential surface of the rubber wheel 241. When the gear cutter 27 and the block cutter 28 cut the pins of the electronic component 31, the electronic component 31 in the guide groove 221 contacts the arc-shaped raised side of the shrapnel body 2B2, so that the electronic component can be cut more stably and the pins are not easily deformed, which is conducive to the subsequent smooth transportation and plug-in operations.

[0090] A plurality of unloading grooves 2B21 are provided at one end of the shrapnel body 2B2 close to the mounting plate 2B1, so that a larger area of ​​the shrapnel body 2B2 can be provided for more comprehensive contact with the electronic components. The presence of the unloading grooves 2B21 prevents the shrapnel body 2B2 from having excessive elastic force due to being provided with an excessively large area. Excessive elastic force of the shrapnel body 2B2 can easily affect the transportation of electronic components or cause greater friction damage with the electronic components.

[0091] In this embodiment, a notch 222 is provided at the bottom end of the blanking track block 22, the guide groove 221 is connected to the notch 222, and the gear cutter 27 and the block cutter 28 are located in the notch 222, so that the gear cutter 27 and the block cutter 28 can be set on the extension track of the guide groove 221, which facilitates the electronic components 31 to be sheared by the gear cutter 27 and the block cutter 28 during the transportation along the guide groove 221.

[0092] Please refer to Figure 7 In this embodiment, the unloading station 112 further includes a retaining plate 2A, one end of which extends within the notch 222. The gear cutter 27 and the block cutter 28 are located on the side of the retaining plate 2A near the notch 222. Due to the notch 222, the arc-shaped groove section of the guide groove 221 is axially continuous. The retaining plate 2A can restrict the electronic components 31 and the material strip 32, allowing the gear cutter 27 and the block cutter 28 to more stably and accurately cut the pins of the electronic components 31.

[0093] In this embodiment, the material blocking plate 2A includes a first plate body 2A1 and a second plate body 2A2. The first plate body 2A1 and the second plate body 2A2 are connected to form an L-shaped structure. The extension plane of the first plate body 2A1 is perpendicular to the extension plane of the second plate body 2A2. The first plate body 2A1 is connected to the side of the unloading track block 22 away from the station body plate 21, and the second plate body 2A2 extends in the groove 222.

[0094] In addition, a long hole extending along the axial direction of the main driving rod 23 can be provided on the first plate body 2A1, and a screw can be passed through the long hole to connect with the threaded hole on the blanking track block 22. The provision of the long hole makes it possible to adjust the limiting position of the second plate body 2A2 on the electronic components 31 and the material strip 32, so as to adjust the second plate body 2A2 to the optimal limiting guide position.

[0095] In addition, in this embodiment, the unloading station device 112 also includes a paper stop belt block 26, which is connected to the side of the unloading track block 22 away from the station body plate 21. The paper stop belt block 26 extends on the side of the groove 22 away from the station body plate 21. The paper stop belt block 26 can make the separated material belt 32 better guided to both sides of the station device.

[0096] Please refer to Figure 6 and Figure 7 In this embodiment, the unloading station device 112 further includes a braking gear 251 , a braking pulley 254 , a braking body 252 , and a braking spring 253 .

[0097] The brake gear 251 is fixedly connected to the main drive rod 23, and the brake body 252 is rotatably connected to the station body plate 21. The rotation axis of the brake body 252 is parallel to the axial direction of the main drive rod 23. The brake pulley 254 is rotatably mounted on the brake body 252. The brake gear 251 is located along the trajectory of the brake pulley 254 as it rotates with the brake body 252. The brake spring 253 is compressed and disposed between the brake body 252 and the station body plate 21. A mounting block 212 can be provided on the station body plate 21 to facilitate mounting the brake spring 253 between the brake body 252 and the mounting block 212.

[0098] The elastic force of the brake spring 253 drives the brake body 252 to rotate toward the brake gear 251, causing the brake pulley 254 to engage with the brake gear 251. This ensures that the main drive rod 23 rotates precisely one stroke each time, and the electronic component moves and is transported accordingly, achieving precise and stable control of electronic component unloading.

[0099] In addition, a manually operable rotary handle may be provided at one end of the main drive rod 23 to facilitate manual control of the rotation of the main drive rod 23, thereby facilitating installation of the electronic components 31 and the material strip 32 into the guide groove 221 and facilitating debugging of the positioning device. One end of the main drive rod 23 is in transmission engagement with a corresponding rotation drive mechanism.

[0100] The double hook chain clip 141 in this embodiment is further described in detail below. Figure 11-13 .

[0101] Specifically, a first V-shaped groove 14115 is provided on the chain clamp block 1411, and a second V-shaped groove 14133 adapted to the first V-shaped groove 14115 is provided on the slide 1413. The second V-shaped groove 14133 is located between the two chain clamp pressure plates 1412, and the clamping ends 14122 of the two chain clamp pressure plates 1412 press the electronic components into the second V-shaped groove 14133.

[0102] By providing the slide 1413 , the electronic components can be stably and accurately pressed by the chain clamp pressing piece 1412 to the bottom end of the second V-shaped groove 14133 , and subsequently the material can be stably and accurately taken out from the second V-shaped groove 14133 , thereby improving the working efficiency.

[0103] Connecting plates 14132 are provided at both ends of one side of the slide 1413 , and a connecting groove 14113 is provided on the chain clamp block 1411 . The connecting plates 14132 are interference-fitted with the connecting groove 14113 , so that the slide 1413 can be conveniently assembled and disassembled.

[0104] In this embodiment, a groove 14114 is provided on one side of the chain clamp block 1411 . The groove 14114 passes through two opposite side surfaces of the chain clamp block 1411 along the rotation axis of the chain clamp pressure plate 1412 . The slide 1413 is positioned and fitted in the groove 14114 .

[0105] When the slide 1413 is positioned and fitted in the groove 14114, the outer surface of the slide 1413 is flush with the outer surface of the chain clamp block 1411. The slide 1413 and the chain clamp block 1411 can form a compact connection structure.

[0106] In this embodiment, the chain clamp block 1411 is made of cast iron, and the sliding plate 1413 is made of stainless steel. The surface of the sliding plate 1413 can be set to be smoother, and the overall cost of the entire structure is low.

[0107] In this embodiment, the clamping ends 14122 of the chain clip pressure piece 1412 are bent, and the two clamping ends 14122 are bent in directions approaching each other.

[0108] Please refer to Figure 11 and Figure 13In this embodiment, one end of the driving end 14121 away from the clamping end 14122 is rotatably connected to the chain clamp block 1411 through a rotating pin 1414, and the other end of the driving end 14121 is provided with an arc-shaped pressure surface, and a positioning plane 14123 is provided on one side of the driving end 14121, and the positioning plane 14123 is located between the arc-shaped pressure surface and the rotating pin 1414.

[0109] The double-hook chain clamp 141 moves with the conveyor chain 14, and a pressing component for pressing the arc-shaped pressure surface is provided at the position of the flat frame 131 corresponding to the unloading station device 112. When the double-hook chain clamp 141 moves to press against the pressing component, the two chain clamp pressure pieces 1412 can be opened. When the two chain clamp pressure pieces 1412 are fully opened, the positioning plane 14123 can form a stable surface contact with the pressing component, so that the two chain clamp pressure pieces 1412 can remain stably opened.

[0110] Working principle of the present invention:

[0111] First, the unloading mechanism 11 unloads the material: the material strip 32 connected with the electronic components 31 passes through the inlet of the guide groove 221 and reaches the intersection of the gear cutter 27 and the block cutter 28. The main driving rod 23 can be controlled to rotate by manually operating the rotating handle, so that a certain number of electronic components 31 are rotated by the gear cutter 27 and the shearing operation of the block cutter 28 one by one to achieve the purpose of debugging. After the sheared feet of the electronic components are qualified, the main driving rod 23 can be controlled by the corresponding rotation drive mechanism to rotate for automatic circulation operation.

[0112] During the shearing and conveying process of the electronic component 31, the pins of the electronic component 31 reach the tooth grooves of the gear cutter 27. The teeth of the gear cutter 27 squeeze the pins of the electronic component 31, driving the electronic component 31 along the guide groove 221 according to a certain travel cycle. When the electronic component 31 approaches the intersection of the gear cutter 27 and the block cutter 28, the pins of the electronic component 31 follow the circumference of the rubber wheel 241, breaking through the resistance of the blanking spring 29 and being conveyed. The blanking spring 29 makes it easier for the electronic component 31 to be conveyed toward the guide outlet, and prevents it from flowing back toward the guide inlet.

[0113] Then, the gear cutter 27 and the block cutter 28 complete the shearing operation on the pins of the electronic component 31 .

[0114] On the other hand, the double-hook chain clamp 141 moves along with the conveyor chain 14 to the chain clamp opening mechanism section below the unloading station 112. The extrusion component of the chain clamp opening mechanism section squeezes the arc-shaped pressure surface, causing the two chain clamp pressure plates 1412 to open. The double-hook chain clamp 141 at a specific position then moves to the unloading station 112 for precise unloading. When the two chain clamp pressure plates 1412 are fully opened, the positioning plane 14123 forms a stable surface contact with the extrusion component, allowing the two chain clamp pressure plates 1412 to remain stably open. The sheared electronic components 31 then fall onto the corresponding double-hook chain clamp 141. The sheared material strip 32 is blocked by the paper stop block 26 and guided toward the sides of the station.

[0115] The double-hook chain clamp 141 then continues to move along with the conveyor chain 14, conveying the electronic components to the centering mechanism for centering. After the curved pressure surface of the double-hook chain clamp 141 is released from the compression component, the clamping ends 14122 of the two chain clamp pressure plates 1412, driven by the elastic force of the elastic member 1416, clamp the electronic components onto the slide 1413 from different sides of the electronic components.

[0116] Then, the conveying chain 14 can carry the double-hook chain clamp 141 to circulate between the unloading mechanism 11 and the plug-in mechanism 12 to receive the electronic components output by the unloading mechanism 11 and transport them to the plug-in mechanism 12 for cutting and plug-in, so as to realize the insertion of electronic components onto the PCB board.

[0117] Among them, the conveying chain 14 will move stably in the guide grooves of the vertical guide groove rod 1313, the first transverse guide groove rod 1311 and the second transverse guide groove rod 1312. The guide plate will form a movement limit for the double-hook chain clamp 141, and the tensioning sprocket 163 has a tensioning effect on the conveying chain 14, so that the electronic components can be circulated and conveyed smoothly and stably, with accurate transportation, and are not prone to deviation or jamming.

[0118] In addition, when the plug-in fails and electronic components need to be replenished, the detector detects that the components need to be replenished, the conveyor chain runs in the reverse direction, and the corresponding double-hook chain clamp 141 moves to the position of the upper waste foot removal mechanism. The upper waste foot removal mechanism squeezes and removes the electronic component waste on the specific double-hook chain clamp 141, and the specific double-hook chain clamp 141 moves to the bottom of the unloading mechanism 11 to receive a new electronic component. After that, the conveyor chain runs forward again, and the double-hook chain clamp 141 moves back to the plug-in mechanism 12 to perform the foot cutting and plug-in work.

[0119] After the parts are inserted, the sheared material feet will remain on the double-hook chain clamp 141. The remaining pins on the double-hook chain clamp 141 will be removed when the double-hook chain clamp 141 moves to the lower waste foot removal mechanism, realizing the material foot removal and the conveying chain forming a complete closed-loop conveying process.

[0120] This completes the process of unloading, conveying, inserting and removing waste feet of electronic components by the horizontal automatic component plug-in machine of this embodiment.

[0121] This embodiment of the horizontal automatic component insertion machine utilizes a flat frame directly connecting the insertion mechanism and the unloading mechanism. The conveyor chain is arranged along the flat frame. This reduces the number of bends in the conveyor chain and the number of guide sprockets, resulting in smoother and more stable conveying, less prone to deviation and jamming, and improved operating efficiency. Furthermore, the shorter conveyor chain and the closer distance between the unloading mechanism and the insertion mechanism reduce the overall width of the insertion machine, making it more compact and smaller in overall size.

[0122] At the same time, by setting the blanking shrapnel, the stability of the shearing of the electronic components can be improved, and the backflow of the electronic components that have passed through the blanking shrapnel can be prevented, while the excessive delivery of the electronic components that have not passed through the blanking shrapnel can be prevented, and the blanking of the electronic components can be accurately and stably controlled.

[0123] In addition, since an annular conveyor chain is used to directly transport electronic components between the plug-in mechanism and the unloading mechanism, when the electronic component at a specific position fails to be inserted, the conveyor chain can drive the double-hook chain clamp at a specific position to return to the corresponding unloading station device for replacement. The electronic components that have not been completed can remain clamped on the double-hook chain clamp without falling off, and automatic and rapid replacement can be achieved.

[0124] In summary, although the present invention has been disclosed above with reference to preferred embodiments, the above preferred embodiments are not intended to limit the present invention. A person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined in the claims.

Claims

1. A horizontal automatic component replacement and insertion machine, characterized in that: include: A blanking mechanism, a plug-in mechanism, and a straight feeding mechanism, wherein the blanking mechanism includes a blanking rack and a blanking station device arranged on the blanking rack, and the plug-in mechanism includes a plug-in rack; The flat feeding mechanism includes a flat frame, a conveying chain, a double-hook chain clamp and a conveying drive mechanism; The two ends of the flat frame are respectively connected to the plug-in rack and the blanking rack, the blanking station device is located above the flat frame, a plurality of guide sprockets are provided on the flat frame, the inner side of the conveyor chain is transmission-connected to the guide sprocket to form a closed-loop structure, the two conveyor chains are arranged in parallel, the double-hook chain clamp is arranged on the side where the two conveyor chains are close to each other, the conveying drive mechanism is fixedly connected to the flat frame, the output end of the conveying drive mechanism is connected to one of the guide sprockets, and the conveying chain drives the double-hook chain clamp to move to convey the electronic components output by the blanking mechanism to the plug-in mechanism; The blanking station device includes: a station body plate, a blanking track block, a main driving rod, a gear cutter, a block cutter, and a blanking spring piece; The two guide rails are provided with a side of the station body plate, and the two sides of the two guide rails that are close to each other are provided with a guide groove, and the electronic components are guided and transported between the two guide grooves. The guide groove passes through the top surface of the blanking track block to form an inlet, and the guide groove passes through the bottom surface of the blanking track block to form an outlet. The main driving rod is rotatably connected to the station body plate, and the main driving rod is located below the outlet. The gear cutter is fixedly connected to the main driving rod, and the block cutter is fixedly connected to the station body plate. The gear cutter and the block cutter are provided on the extension track of each guide groove, and the gear cutter and the block cutter intersect along the axial direction of the main driving rod. The gear cutter rotates and cooperates with the block cutter to shear the pins of the electronic components, so that the electronic components are separated from the material strip, and the blanking spring piece is located between the two blanking track blocks, one end of the blanking spring piece is fixedly connected to the station body, and the other end of the blanking spring piece extends between the two guide grooves.

2. The horizontal automatic component replacement and insertion machine according to claim 1, characterized in that: The straight feeding mechanism further comprises a vertical guide groove rod provided on the straight frame, and a first transverse guide groove rod and a second transverse guide groove rod perpendicular to the vertical guide groove rod, one side of each of the vertical guide groove rod, the first transverse guide groove rod and the second transverse guide groove rod is provided with a guide groove for guiding the movement of the conveyor chain, and a guide plate for directionally cooperating with the cooperating groove on the double-hook chain clamp; The first transverse guide groove rod and the second transverse guide groove rod are arranged in parallel, the first transverse guide groove rod is located above the second transverse guide groove rod, the two ends of the first transverse guide groove are respectively connected to the plug-in rack and the blanking rack, one end of the second transverse guide groove is connected to the blanking rack, the vertical guide groove rod is connected to the plug-in rack, one end of the vertical guide groove rod is connected to the first transverse guide groove rod, and the other end of the vertical guide groove rod is connected to the second transverse guide groove rod.

3. The horizontal automatic component replacement and insertion machine according to claim 2, characterized in that: The straight feeding mechanism also includes a tensioning frame and a tensioning mechanism, the tensioning frame is arranged between the vertical guide groove rod and the second transverse guide groove rod, the tensioning mechanism includes a tensioning rod elastically rotatably arranged on the tensioning frame, and a tensioning sprocket rotatably arranged on the tensioning rod, and the tensioning sprocket transmission is engaged on the inner side of the conveying chain.

4. The horizontal automatic component replacement and insertion machine according to claim 3, characterized in that: The top end of the side of the tensioning rod is rotatably connected to the tensioning frame, the bottom end of the side of the tensioning rod is rotatably connected to the tensioning sprocket, the middle part of the tensioning rod is elastically connected to the tensioning frame through a tension spring, and the conveying chain passes through the bottom of the tensioning sprocket and the top of the guide sprocket in turn and extends into the second transverse guide groove rod.

5. The horizontal automatic component replacement and insertion machine according to claim 1, characterized in that: The blanking spring piece is a U-shaped structure, the middle part of the blanking spring piece is fixedly connected to the station body, and the two ends of the blanking spring piece extend between the two guide grooves; The unloading station device also includes a rubber wheel, which is sleeved on the outer periphery of the main driving rod. The two ends of the unloading spring are blocking ends, and the blocking ends contact with the rubber wheel to form a curved structure. The curved convex side of the blocking end faces the inlet.

6. The horizontal automatic component replacement and insertion machine according to claim 5, characterized in that: The guide groove includes an arc-shaped groove segment, the center of which is located on the central axis of the main driving rod, and the circumferential surface of the rubber wheel is located within the axial extension area of ​​the arc-shaped groove segment; A rubber wheel is provided corresponding to the position of each stop end, and the stop end is in elastic contact with the circumferential surface of the rubber wheel. When the gear cutter and the block cutter cut the pins of the electronic components, the pins of the electronic components are simultaneously located between the stop end and the rubber wheel.

7. The horizontal automatic component replacement and insertion machine according to claim 5, characterized in that: The blanking station device also includes a limiting spring piece, which includes a mounting plate and a spring piece body. The mounting plate is connected between the two blanking track blocks, one end of the spring piece body is connected to the middle of the mounting plate, and the other end of the spring piece body extends between the two guide grooves. The spring piece body is an arc-shaped plate structure corresponding to the circumferential surface of the rubber wheel. When the gear cutter and the block cutter shear the pins of the electronic components, the electronic components in the guide groove contact one side of the arc-shaped protrusion of the spring piece body. A plurality of unloading grooves are provided on one end of the spring body close to the mounting plate.

8. The horizontal automatic component replacement and insertion machine according to claim 5, characterized in that: A notch is provided at the bottom end of the blanking track block, the guide groove is connected to the notch, and the gear cutter and the block cutter are located in the notch; The unloading station device also includes a material baffle plate, one end of which extends into the notch, the gear cutter and the block cutter are located on the side of the material baffle plate close to the notch, the material baffle plate includes a first plate body and a second plate body, the first plate body and the second plate body are connected to form an L-shaped structure, the extension plane of the first plate body is perpendicular to the extension plane of the second plate body, the first plate body is connected to the side of the unloading track block away from the station body plate, and the second plate body extends into the notch.

9. The horizontal automatic component replacement and insertion machine according to claim 8, characterized in that: The unloading station device also includes a paper stop belt block, which is connected to the side of the unloading track block away from the station body plate, and the paper stop belt block extends on the side of the slot away from the station body plate.

10. The horizontal automatic component replacement and insertion machine according to claim 8, characterized in that: The unloading station device also includes a brake gear, a brake pulley, a brake body, and a brake spring; The brake gear is fixedly connected to the main driving rod, the brake body is rotatably connected to the station body plate, the brake pulley is rotatably set on the brake body, the brake gear is located on the trajectory of the brake pulley rotating with the brake body, the brake spring is compressed and set between the brake body and the station body plate, and the brake spring is used to drive the brake body to rotate in the direction close to the brake gear, so that the brake pulley is engaged with the brake gear.

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