Automatic pin inserting device for automobile seat ventilation and pin inserting method thereof

Abstract

The present application relates to the technical field of automobile seat ventilation leather punching, and particularly relates to an automatic needle inserting device for automobile seat ventilation and a needle inserting method thereof, which comprises an operation table, a needle die positioning mechanism arranged on the operation table, a vibration feeding mechanism and a mechanical arm, the free end of the mechanical arm is provided with a needle inserting mechanism, the vibration feeding mechanism is connected with the needle inserting mechanism through a feeding hose; the needle die positioning mechanism comprises a limiting seat and a locking assembly, and is used for fixing a needle hanging plate; the vibration feeding mechanism comprises a vibration disc and a feeding assembly, and is used for conveying the needles to the needle inserting mechanism one by one; the needle inserting mechanism comprises a needle clamp, a pressing rod and a positioning clamp jaw, the pressing rod is driven by a power assembly, and the needle in the feeding cavity is pushed out and inserted into the needle hole of the needle hanging plate; the present application realizes the automation of the needle inserting process of the needle hanging plate by combining the needle die positioning, automatic feeding and mechanical arm needle inserting, improves the stability of the needle inserting operation, and is suitable for the automatic needle inserting operation in the processing of automobile seat ventilation leather.

Description

Technical Field

[0001] This invention relates to the field of leather perforation technology for automotive seat ventilation, and more particularly to an automatic pin insertion device and method for automotive seat ventilation. Background Technology

[0002] Car seat ventilation is usually achieved through ventilation holes in the seat leather. During the processing of seat leather, a needle plate is used to punch holes in the leather. In the current processing, the needles on the needle plate are usually installed manually one by one. The operator inserts the needles into the corresponding positions according to the needle hole positions on the needle plate to complete the subsequent leather punching process.

[0003] As the production scale of automotive seats expands, the number of pins in the IV plate increases, and manual pin insertion gradually becomes insufficient to meet the needs of continuous production. In actual production, manual pin insertion requires a long working time, and after operators repeat the pin insertion action for a long time, it is easy to cause deviations in pin position and inconsistent pin depth, which affects the consistency of drilling in the subsequent use of the IV plate. At the same time, manual pin-by-pin operation requires the participation of many people, which is not conducive to the automated management of the production process.

[0004] Therefore, in the existing automotive seat ventilation process, the needle insertion operation of the needle plate still suffers from insufficient automation, making it difficult to achieve stable and continuous needle insertion. Summary of the Invention

[0005] This invention provides an automatic pin insertion device and method for automobile seat ventilation, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: An automatic pin insertion device for car seat ventilation includes an operating table and a pin positioning mechanism, a vibrating feeding mechanism and a robotic arm disposed thereon. The pin insertion mechanism is disposed at the free end of the robotic arm, and the vibrating feeding mechanism is connected to the pin insertion mechanism through a feeding hose. The needle mold positioning mechanism includes a limiting seat and a corresponding locking component; the vibration feeding mechanism includes a vibratory plate and a corresponding feeding component; the feeding component is connected to the needle inlet of the needle insertion mechanism through the feeding hose. The needle insertion mechanism includes a needle clamp and a pressure rod disposed therein. The feeding hose is connected to the feeding chamber inside the needle clamp. The pressure rod is located inside the feeding chamber and is driven by a power component to move toward the discharge port of the feeding chamber. A positioning gripper is provided corresponding to the discharge port of the needle clamp.

[0007] Furthermore, the locking assembly includes an X-axis displacement mechanism and a Y-axis displacement mechanism, and the two together drive the limit locking mechanism. The limiting locking mechanism adjusts its position through displacement and works with the limiting seat to fix different sizes of needle plates.

[0008] Furthermore, the feeding assembly includes a staggered screening mechanism disposed at the discharge end of the vibratory feeder, used to screen out individual pins from the discharge end of the vibratory feeder and feed them into the feeding hose.

[0009] Furthermore, the pin clamp includes a support base and openable clamping plates on both sides thereof, the support base including a base plate and two vertical plates vertically disposed at both ends thereof; The clamping plate is rotatably mounted between the two vertical plates via a support shaft, and cooperates with the vertical plates to form the feeding chamber; A first compression spring is provided between the support base and one end of the clamping plate, and the discharge port is formed at the end of the two clamping plates away from the first compression spring.

[0010] Furthermore, an opening and closing mechanism is provided between the pair of clamps to actively drive the opening and closing of the pair of clamps.

[0011] Furthermore, the opening and closing mechanism includes a transmission block that can be lifted and lowered between a pair of clamping plates. A top support slope is provided at the bottom of the transmission block corresponding to the inner side of the clamping plates. The clamping plates rotate relative to each other under the drive of the transmission block, overcoming the elastic force of the first compression spring.

[0012] Furthermore, the free end of the robotic arm is connected to a connecting plate, one end of which is a vertical plate connected to the pin inlet, and the other end of which is a vertical plate fixed to the connecting plate by an L-shaped connecting plate. The power assembly includes a lower pressure seat, the top end of the pressure rod is fixedly connected to the lower pressure seat, and a fixing plate is provided between the lower pressure seat and the pin clamp, and the fixing plate is fixed to the connecting plate. A sliding sleeve is provided through and slidably disposed on the fixed plate. The bottom of the sliding sleeve is connected to the transmission block. The transmission block passes through the base plate and is slidably connected to it. The lower pressure seat drives the transmission block to move through the sliding sleeve. A stepped ring is provided at the bottom of the sliding sleeve, and a return spring is fitted on the sliding sleeve.

[0013] Furthermore, a feed port is provided on the transmission block corresponding to the pin inlet, and a guide surface is provided along the circumference of the feed port edge, the guide surface being flush with the inner wall of the pin inlet. The transmission block is connected to the sliding sleeve and can slide relative to it. A second compression spring is provided between the transmission block and the sliding sleeve. The spring stiffness of the second compression spring is greater than that of the return spring.

[0014] Furthermore, a guide rod is provided at the top of the transmission block, and a stepped retaining ring is provided at the top of the guide rod. A cylindrical groove is provided at the bottom of the sliding sleeve, and the bottom protrudes inward to form a limit with the stepped retaining ring. The second compression spring is sleeved on the outside of the guide rod. The pressure rod passes through the sliding sleeve and the transmission block, and a limit ring is provided on the rod body of the pressure rod located in the feeding chamber.

[0015] A pin insertion method for an automatic pin insertion device for automotive seat ventilation, comprising the following steps: S1: Place the needle plate on the limiting seat and press and fix the needle plate by the locking assembly; S2: The vibratory feeder delivers the pins one by one to the feeding assembly, and the feeding assembly feeds the pins through the feeding hose into the feeding chamber of the pin chuck via the pin inlet; S3: The needle body passes through the discharge port, while the end is restricted in the feeding chamber. The power component drives the pressure rod to move toward the discharge port and abut against the end of the needle. At the same time, the positioning claw clamps and positions the needle body, and works with the robotic arm to align the needle body with the needle hole. S4: The power component continues to drive the pressure rod to move downward, the discharge port opens, and the pressure rod simultaneously pushes the needle tip of the insertion pin out of the discharge port, so that the insertion pin is inserted into the needle hole; S5: The power component drives the pressure rod to lift and reset, the discharge port closes, the next insertion needle enters the feeding chamber through the insertion needle inlet, and corrects the insertion needle entering the feeding chamber so that the insertion needle falls vertically into the feeding chamber; S6: Repeat steps S3 to S5 until all the pin holes on the suture plate are inserted.

[0016] The technical solution of this invention can achieve the following technical effects: This invention provides an automatic pin insertion device and method for automotive seat ventilation. Through automatic pin feeding, automatic positioning and automatic insertion, the pin insertion operation does not require manual operation of each pin, achieving continuous operation and pin consistency. It reduces the labor intensity of manual pin insertion in the prior art and improves production efficiency and pin insertion accuracy and stability. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of an automatic pin insertion device for car seat ventilation; Figure 2 A schematic diagram of an automatic pin insertion device for car seat ventilation; Figure 3 This is a schematic diagram of the needle mold positioning mechanism; Figure 4 for Figure 3 Enlarged view of the local structure at point D; Figure 5 A schematic diagram of the vibratory feeding mechanism; Figure 6 This is a schematic diagram of the feeding assembly. Figure 7 This is a top view of the feeding assembly; Figure 8 for Figure 7 Schematic diagram of the cross section at point AA; Figure 9 This is a schematic diagram of the pin insertion mechanism; Figure 10 This is a side view of the pin insertion mechanism; Figure 11 for Figure 10 Schematic diagram of the cross section at point BB; Figure 12 This is a front view of the pin insertion mechanism; Figure 13 For Figure 12 Schematic diagram of the cross section at point CC; Figure 14 This is a schematic diagram of the internal structure of the pin clamp; Figure 15 This is a schematic diagram showing the tilted and jammed state of the needles inside the feeding chamber.

[0019] Reference numerals: 1. Operating table; 2. Needle mold positioning mechanism; 21. Limiting seat; 211. Straight part; 212. Bending part; 213. Platform groove; 214. Second clamp; 22. Locking assembly; 221. First guide rail; 222. First slide; 223. Second guide rail; 224. Second slide; 225. First track lock; 226. Second track lock; 23. Limiting plate; 231. Limiting groove; 24. Handle 25. Hand; First clamp; 261. Slide plate; 262. First cylinder; 263. Third guide rail; 3. Vibrating feeding mechanism; 31. Vibratory plate; 311. Straight vibratory guide rail; 32. Feeding assembly; 321. Support plate; 321a. Through hole; 322. Fourth slide; 322a. First material hole; 323. Guide seat; 323a. Second material hole; 323b. Air inlet; 324. Second cylinder; 325. Four guide rails; 33. Mounting vertical plate; 331. Mounting slot; 34. Clamping block; 341. Limiting hole; 35. Third cylinder; 4. Robotic arm; 41. Connecting plate; 5. Pin insertion mechanism; 51. Pin insertion chuck; 511. Support base; 511a. Base plate; 511b. Vertical plate; 512. Clamping plate; 513. Transmission block; 513a. Top support inclined surface; 513b. Feed port; 513c. Guide surface; 514. Support Shaft; 515, First compression spring; 516, Feeding chamber; 517, Discharge port; 518, Pin inlet; 519, Second compression spring; 52, Pressure rod; 521, Limiting ring; 53, Positioning gripper; 54, Lower pressure seat; 55, Fixing plate; 56, Sliding sleeve; 561, Return spring; 57, Power assembly; 571, Fifth guide rail; 572, Fifth slide; 573, Fourth cylinder; 6, Feeding hose. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] This invention relates to the automatic needle insertion operation of a needle plate in a perforated leather ventilation equipment for automobile seats. The needle plate is densely covered with needle holes, and needles need to be inserted one by one into each needle hole. The needle plate filled with needles is then used in conjunction with a subsequent stamping process to form ventilation holes on the leather to achieve the ventilation function of the seat.

[0023] In actual production, the needle insertion operation has long relied on manual labor. Workers need to insert the needles one by one into the needle hole, which has problems such as high labor intensity, low work efficiency and easy to cut fingers.

[0024] To address the above problems, the present invention provides an automatic pin insertion device and a pin insertion method for automotive seat ventilation.

[0025] Example 1:

[0026] like Figure 1 and Figure 2 As shown, this embodiment provides an automatic pin insertion device for automotive seat ventilation, including an operating table 1 and a pin mold positioning mechanism 2, a vibrating feeding mechanism 3, and a robotic arm 4 disposed thereon. A pin insertion mechanism 5 is disposed at the free end of the robotic arm 4. The vibrating feeding mechanism 3 is connected to the pin insertion mechanism 5 through a feeding hose 6. The pin mold positioning mechanism 2 includes a limiting seat 21 and a corresponding locking component 22. The vibrating feeding mechanism 3 includes a vibrating plate 31 and a corresponding feeding component 32. The feeding component 32 is connected to the pin insertion inlet 518 of the pin insertion mechanism 5 through the feeding hose 6. The pin insertion mechanism 5 includes a pin clamp 51 and a pressure rod 52 disposed therein. The feeding hose 6 connects to the feeding chamber 516 inside the pin clamp 51. The pressure rod 52 is located inside the feeding chamber 516 and is driven by a power component 57 to move toward the outlet 517 of the feeding chamber 516. A positioning gripper 53 is disposed corresponding to the outlet 517 of the pin clamp 51.

[0027] In this embodiment, the needle positioning mechanism 2 is used to fix the needle plate, and the vibration feeding mechanism 3 supplies needles to the needle insertion mechanism 5 on the robotic arm 4. The needle insertion mechanism 5 cooperates with the robotic arm 4 to send the needles one by one into each needle hole of the needle plate.

[0028] Specifically, the limiting seat 21 is used to support the needle plate and, together with the locking component 22, to press and fix the needle plate; the vibrating plate 31 arranges the scattered needles and then conveys them one by one to the feeding component 32. The feeding component 32 then sends the needles one by one to the needle insertion mechanism 5 through the feeding hose 6. The needles are then guided into the feeding chamber 516 in the needle clamp 51 through the needle inlet 518.

[0029] In the specific implementation process, the needle plate is fixed on the limiting seat 21, the needle enters the feeding chamber 516 through the feeding hose 6, the needle body falls into the discharge port 517, the end is restricted, and the positioning claw 53 is used to clamp and position the needle body to ensure that the needle remains vertical and aligned with the needle hole before being inserted into the needle hole; then the robotic arm 4 drives the needle insertion mechanism 5 to move to the needle hole to be inserted on the needle plate, the power component 57 drives the pressure rod 52 to move towards the discharge port 517, pushing the needle in the feeding chamber 516 out of the discharge port 517. After the needle is inserted into the needle hole, the pressure rod 52 returns to its original position, the next needle enters the feeding chamber 516, the robotic arm 4 drives the needle insertion mechanism 5 to move to the next needle hole position, and so on, until the needle insertion operation of all needle holes on the needle plate is completed.

[0030] With automatic feeding, positioning and insertion of pins, the pin insertion operation does not require manual operation of each pin, achieving continuous operation and consistency of pin insertion. This reduces the labor intensity of manual pin insertion in existing technologies and improves production efficiency and pin insertion accuracy and stability.

[0031] Example 2:

[0032] This embodiment further explains the structure of the needle mold positioning mechanism 2 based on Embodiment 1.

[0033] like Figure 3 As shown, the locking assembly 22 includes an X-axis displacement mechanism and a Y-axis displacement mechanism, and the two together drive the limit locking mechanism. The limiting locking mechanism adjusts the position by displacement and works with the limiting seat 21 to fix the needle plates of different sizes. The X-axis displacement mechanism includes a first guide rail 221 and a first slide block 222 slidably disposed thereon. A second guide rail 223 of the Y-axis displacement mechanism is disposed on the first slide block 222, and a second slide block 224 is slidably disposed on the second guide rail 223. The first guide rail 221 and the second guide rail 223 are perpendicular to each other. The limiting locking mechanism includes a limiting plate 23 and a handle 24 disposed on the second slide 224. The limiting plate 23 is disposed corresponding to the limiting seat 21. A first clamp 25 is disposed on the limiting plate 23. A first track lock 225 and a second track lock 226 are disposed on the first slide 222 and the second slide 224 respectively, corresponding to the first guide rail 221 and the second guide rail 223.

[0034] like Figure 3 and Figure 4 As shown, the limiting seat 21 is L-shaped, including a straight part 211 and a bent part 212 vertically disposed at one end thereon. A second clamp 214 is provided at the bent part 212. A platform groove 213 is provided on the side edge of the limiting seat 21 facing the first guide rail 221. A limiting groove 231 is provided on the side of the limiting plate 23 near the platform groove 213. The first clamp 25 is correspondingly disposed with the limiting groove 231. The limiting seat 21 and the locking component 22 are both mounted on the slide plate 261. The slide plate 261 is driven by the first cylinder 262 to slide on the third guide rail 263. The straight part 211 is arranged parallel to the first guide rail 221, and the first guide rail 221 is arranged perpendicular to the third guide rail 263.

[0035] During loading, first place one corner of the needle plate on the platform groove 213 at the angle between the straight part 211 and the bent part 212 to position one end of the needle plate. Then, place one side edge of the needle plate on the platform groove 213 of the straight part 211. Next, push the second slide block 224 with the handle 24 to adjust the horizontal position of the limiting plate 23 so that the limiting groove 231 on the limiting plate 23 supports the other side edge of the needle plate. At this time, the two sides of the needle plate are supported by the platform groove 213 and the limiting groove 231, respectively. Finally, press and fix both ends of the needle plate with the first clamp 25 and the second clamp 214 to complete the positioning and locking of the needle plate.

[0036] The first slide block 222 slides along the first guide rail 221 to accommodate needle plates of different lengths, and the second slide block 224 slides along the second guide rail 223 to accommodate needle plates of different widths. After the position is adjusted, the first slide block 222 and the second slide block 224 are locked by the first track lock 225 and the second track lock 226 respectively to prevent the limiting plate 23 from shifting during the needle insertion process.

[0037] By combining the limiting seat 21 and the locking component 22, the situation where the positioning fixture can only be adapted to a single specification of the needle plate is avoided. This allows the same equipment to be compatible with needle plates of various sizes, and the positioning and locking operations of the needle plate can be quickly completed manually.

[0038] In this embodiment, the vibrating feeding mechanism 3 and the robotic arm 4 are arranged on the same side of the needle mold positioning mechanism 2 and are isolated to form an isolation area; the needle mold positioning mechanism 2 on the slide plate 261 can enter or exit the isolation area along the third guide rail 263 under the drive of the first cylinder 262. When exiting the isolation area, it is convenient for personnel to replace the needle plate. The needle insertion operation can only begin after entering the isolation area.

[0039] Example 3:

[0040] This embodiment further explains the structure of the vibrating feeding mechanism 3 based on Embodiment 1.

[0041] like Figure 5 and Figure 6 As shown, the feeding assembly includes a staggered screening mechanism disposed at the discharge end of the vibratory feeder, which is used to screen out individual pins from the discharge end of the vibratory feeder and feed them into the feeding hose. The misaligned screening mechanism includes a support plate 321 and a fourth slide 322 and a guide seat 323 respectively disposed on its upper and lower sides. A first material hole 322a is provided on the fourth slide 322, a through hole 321a is provided on the support plate 321, and a second material hole 323a is provided on the guide seat 323. The first material hole 322a is connected to the second material hole 323a through the through hole 321a. The second material hole 323a is connected to the needle inlet 518 of the needle insertion mechanism 5 through the feeding hose 6. An air inlet 323b is provided on the guide seat 323 corresponding to the second material hole 323a.

[0042] like Figure 6 and Figure 7 As shown, a mounting vertical plate 33 is provided on the support plate 321 corresponding to the linear vibration guide rail 311 of the vibrating plate 31. A mounting groove 331 is provided on the mounting vertical plate 33 corresponding to the end of the linear vibration guide rail 311. The first material hole 322a is located on the side of the fourth slide block 322 that is in contact with the mounting vertical plate 33, and has a U-shaped opening to facilitate the reception of the pin. The mounting groove 331 and the first material hole 322a are offset. The fourth slide block 322 is driven by the second cylinder 324 to slide on the fourth guide rail 325, so that the first material hole 322a is respectively connected to the through hole 321a on the linear vibration guide rail 311 or the support plate 321.

[0043] like Figure 7 and Figure 8 As shown, the linear vibration guide rail 311 is perpendicular to the fourth guide rail 325. A clamping block 34 is provided on the fourth slide block 322 corresponding to the first material hole 322a. A limiting hole 341 is opened on the clamping block 34 corresponding to the first material hole 322a. The cross-sectional dimension of the limiting hole 341 is smaller than that of the first material hole 322a, and it is used to limit the end of the pin. The clamping block 34 is driven by the third cylinder 35 to move in a direction perpendicular to the fourth guide rail 325.

[0044] During feeding, the vibratory feeder 31 aligns the pins and then conveys them one by one to the end of the linear vibratory guide rail 311. The second cylinder 324 drives the fourth slide block 322 to slide along the fourth guide rail 325, so that the limiting hole 341 on the clamping block 34 aligns with the linear vibratory guide rail 311, and one pin on the linear vibratory guide rail 311 is inserted into the limiting hole 341. Then, the second cylinder 324 drives the fourth slide block 322 to slide in the opposite direction, so that the first material hole 322a aligns with the through hole 321a on the support plate 321. During the sliding process, the pins in the limiting hole 341 move synchronously, and the fourth slide block... The side wall of the mounting plate 33 is fitted with 322 to seal the end of the vertical vibration guide rail 311, preventing the subsequent insertion of the needle from being sent out during the transfer process; then the third cylinder 35 drives the clamping block 34 away from the mounting plate 33, the constraint of the limiting hole 341 on the needle is released, the needle falls into the first material hole 322a, and then enters the second material hole 323a of the guide seat 323 through the through hole 321a; finally, compressed gas is blown into the air inlet 323b on the guide seat 323, and the needle is pushed by the airflow through the feeding hose 6 into the needle inlet 518 of the needle mechanism 5, completing the delivery of a single needle.

[0045] The cross-sectional dimension of the limiting hole 341 is smaller than that of the first material hole 322a, so that the end of the needle is only limited and clamped by the limiting hole 341 during the transfer process. After the clamping block 34 is removed, the needle can fall smoothly into the first material hole 322a without being stuck at the opening. This realizes the single-piece material distribution of the needle and the pneumatic conveying of the hose. In addition, the vibrating plate 31 can be placed on the outside of the equipment for easy material replenishment and maintenance by personnel.

[0046] Example 4:

[0047] This embodiment further explains the structure of the pin insertion mechanism 5 based on Embodiment 1.

[0048] like Figure 9 and Figure 14 As shown, the pin clamp 51 includes a support base 511 and openable clamping plates 512 disposed on both sides thereon. The support base 511 includes a base plate 511a and two vertical plates 511b disposed vertically at both ends thereon. The clamping plates 512 are rotatably disposed between the two vertical plates 511b via a support shaft 514. There are two clamping plates 512 disposed opposite each other and cooperate with the vertical plates 511b to form a feeding cavity 516. A first compression spring 515 is disposed between the support base 511 and one end of the clamping plate 512. A discharge port 517 is formed at the end of the two clamping plates 512 away from the first compression spring 515.

[0049] The first compression spring 515 acts on one end of the clamping plate 512, keeping the other end of the two clamping plates 512 closed to form the discharge port 517. The discharge port 517 restricts the end of the insertion pin to prevent it from falling. It can only be discharged from the discharge port 517 by the drive of the pressure rod 52.

[0050] like Figures 10 to 13 As shown, an opening and closing mechanism that actively drives the pair of clamping plates 512 to open and close is also provided between the pair of clamping plates 512. In the above embodiment, since the pressure rod 52 needs to forcefully open the normally closed clamping plate 512 by pushing during material feeding, each insertion of the pin is an impact load. Under long-term use, the hinge and the inner wall of the feeding chamber 516 will wear out, and there is a certain degree of vibration and shaking during the release process, which is not conducive to precise alignment. Therefore, by setting an opening and closing mechanism to control the active opening and closing of a pair of clamping plates 512, the above technical problems are solved.

[0051] The opening and closing mechanism includes a transmission block 513 that can be lifted and lowered between a pair of clamping plates 512. A top support slope 513a is provided at the bottom of the transmission block 513 corresponding to the inner side of the clamping plate 512. The clamping plate 512 rotates relative to the transmission block 513 under the drive of the transmission block 513, overcoming the elastic force of the first compression spring 515.

[0052] By setting the transmission block 513 and the top support inclined surface 513a, when the pressure rod 52 presses against the end of the insert and presses down, the transmission block 513 moves down at the same time. While opening a pair of clamping plates 512, the pressure rod 52 pushes out the insert, thereby actively opening the clamping plates 512 and avoiding the pressure rod 52 causing impact to forcefully open.

[0053] The free end of the robotic arm 4 is connected to a connecting plate 41. One end of the vertical plate 511b is connected to the pin inlet 518, and the other end of the vertical plate 511b is fixed to the connecting plate 41 by an L-shaped connecting plate. The power assembly 57 includes a lower pressure seat 54, the top end of the pressure rod 52 is fixedly connected to the lower pressure seat 54, and a fixing plate 55 is provided between the lower pressure seat 54 and the pin clamp 51. The fixing plate 55 is fixed on the connecting plate 41. A sliding sleeve 56 is slidably disposed through the fixed plate 55. The bottom of the sliding sleeve 56 is connected to the transmission block 513. The transmission block 513 passes through the base plate 511a and is slidably connected to it. The lower pressure seat 54 drives the transmission block 513 to move through the sliding sleeve 56.

[0054] A stepped ring is provided at the bottom of the sliding sleeve 56, and a return spring 561 is sleeved on the sliding sleeve 56. The sliding sleeve 56 moves toward the lower pressure seat 54 under the action of the return spring 561.

[0055] like Figure 9 and Figure 12 As shown, a fifth guide rail 571 is provided on the connecting plate 41. The fifth guide rail 571 is arranged parallel to the pressure rod 52. A fifth slide block 572 is slidably arranged on the fifth guide rail 571. A lower pressure block 54 is arranged on the fifth slide block 572. The fifth slide block 572 is driven to move by the fourth cylinder 573.

[0056] When a needle is present in the feeding chamber 516, the fourth cylinder 573 drives the fifth slide 572 to move along the fifth guide rail 571, causing the lower pressure seat 54 on the fifth slide 572 to move downward. The lower pressure seat 54 simultaneously drives the pressure rod 52 to move downward. During the downward movement, the needle falls into the discharge port 517 due to its own weight. If it does not fall completely, the pressure rod 52 can further assist in pushing the needle body out of the discharge port 517. At this time, the end of the needle is still located in the feeding chamber 516. The two clamps 512 remain closed under the action of the first compression spring 515, limiting the end and preventing the needle from falling out. After the needle body extends out of the discharge port 517, the pressure rod 52 reaches the lower pressure seat 54. Figure 11 At the position shown, the fourth cylinder 573 pauses its operation, and the positioning gripper 53 clamps and positions the needle body, working with the robotic arm 4 to align the needle body with the needle hole on the needle plate. At this time, the bottom of the pressure rod 52 is in contact with the end of the needle, and the lower pressure seat 54 is also in contact with the sliding sleeve 56. After the needle body is aligned with the needle hole on the needle plate, the positioning gripper 53 releases its grip on the needle body, and the fourth cylinder 573 continues to operate. Then, the lower pressure seat 54 and the pressure rod 52 continue to press down, and the lower pressure seat 54 can drive the sliding sleeve 56 to move down. The sliding sleeve 56 transmits pressure to the transmission block 513, driving the transmission block 513 to move down along the bottom plate 511a. The transmission block 513 supports the inner side of the two clamping plates 512 through the top support inclined surface 513a on it, so that the two clamping plates 512 overcome the elastic force of the first compression spring 515 and rotate relative to each other, and the discharge port 517 opens. At the same time, the pressure rod 52 presses down synchronously, and the needle part in the feeding chamber 516 is discharged from the discharge port 517, completing the insertion of the needle into the needle hole of the needle plate.

[0057] Since the discharge port 517 is opened by the active support of the transmission block 513, rather than by the pressure rod 52 pushing the needle to forcefully squeeze open the clamping plate 512, the needle does not bear the squeezing resistance of the clamping plate 512 during the outgoing process, and the clamping plate 512 and the support shaft 514 are not subjected to sudden impact loads. This is beneficial to maintaining the insertion accuracy of the needle and can also reduce the wear fatigue of the hinge of the clamping plate 512 and the first compression spring 515.

[0058] like Figure 15 As shown, since the needle body of this type of needle is relatively long, when it is fed into the feeding chamber 516 from the needle inlet 518 at an angle, there is a certain probability that it will get stuck between the feed inlet 513b and the feeding chamber 516 and cannot fall vertically into the discharge port, resulting in poor material feeding and requiring manual intervention to interrupt continuous operation. Therefore, a guide surface 513c is provided along the circumference of the feed inlet 513b of the transmission block 513. The guide surface 513c is flush with the inner wall of the needle inlet 518. The transmission block 513 is connected to the sliding sleeve 56 and can slide relative to it. A second compression spring 519 is provided between the transmission block 513 and the sliding sleeve 56. The spring stiffness of the second compression spring 519 is greater than the spring stiffness of the return spring 561.

[0059] The top of the transmission block 513 is provided with a guide rod, and the top of the guide rod is provided with a stepped retaining ring. The bottom of the sliding sleeve 56 is provided with a cylindrical groove, and the bottom protrudes inward to form a limit with the stepped retaining ring. The second compression spring 519 is sleeved on the outside of the guide rod. The pressure rod 52 passes through the sliding sleeve 56 and the transmission block 513, and a limit ring 521 is provided on the rod body of the pressure rod 52 located in the feeding chamber 516.

[0060] After the current insertion pin is pushed out, the lower pressure seat 54 is lifted to reset, the sliding sleeve 56 moves upward to reset under the action of the reset spring 561, the transmission block 513 is reset accordingly, and the two clamping plates 512 close the discharge port 517 again under the action of the first compression spring 515; thus completing one insertion pin action, the next insertion pin enters the feed port 513b through the insertion pin inlet 518, and smoothly slides into the feeding chamber 516 under the guidance of the guide surface 513c; If the insert pin is tilted and jammed, the power unit 57 will drive the pressure rod 52 to lift further, causing the limiting ring 521 on the pressure rod 52 to move the transmission block 513 slightly upward. At the same time, the guide surface 513c will move upward, and the bottom sloping arc surface of the guide surface 513c will contact the insert pin body and push it upward, correcting the tilted insert pin entering the feeding chamber 516. This will make the insert pin tend to be vertical, and at the same time, continuously adjust the position of the insert pin, making it easier for the bottom of its body to approach and slide into the discharge port 517. This will prevent long insert pins from being tilted and jammed in the feeding chamber 516, causing material jamming and poor material feeding, reducing the frequency of manual intervention to clear obstacles, and facilitating continuous operation of the equipment.

[0061] Among them, the spring stiffness of the second compression spring 519 is greater than that of the return spring 561, ensuring that when the lower pressure seat 54 moves down, the pressure can be reliably transmitted to the transmission block 513 through the second compression spring 519, so that the transmission block 513 supports the clamping plate 512 to rotate and open the discharge port 517. When it is necessary to rise, the stepped ring at the bottom of the sliding sleeve 56 abuts against the fixed plate 55, which does not affect the stable upward movement of the transmission block 513.

[0062] In other words, by setting up a transmission block 513 that can move both vertically and horizontally, when moving downwards, it drives a pair of clamping plates 512 to actively open, facilitating stable feeding of the pins and avoiding impact and collision during feeding by the pressure rod 52; when moving upwards, it drives the guide surface 513c to further assist in adjusting the position of the tilted pins, ensuring smooth feeding and avoiding jamming. Moreover, the transmission block 513 does not require any additional driving components throughout the entire process, and only utilizes the pushing force of the pressure rod 52 itself. This further avoids adding additional drives and related structures to the free end of the robotic arm 4. Within a limited space, it makes reasonable use of its own structural settings, improves structural utilization, and avoids physical interference during installation caused by multiple drive structures.

[0063] Example 5:

[0064] This embodiment provides a pin insertion method for an automatic pin insertion device for automotive seat ventilation, implemented using any of the automatic pin insertion devices for automotive seat ventilation described in the above embodiments, and includes the following steps: S1: Place the needle plate on the limiting seat 21 and press and fix the needle plate by the locking component 22; In step S1, one corner of the needle plate is placed on the platform groove 213 at the angle between the straight part 211 and the bent part 212, and one side edge is placed on the platform groove 213 of the straight part 211. The position of the limiting plate 23 is adjusted by the handle 24 so that the limiting groove 231 supports the other side edge of the needle plate. Then, the first clamp 25 and the second clamp 214 are pressed and fixed. After the fixing is completed, the first cylinder 262 drives the slide plate 261 to slide along the third guide rail 263 so that the needle mold positioning mechanism 2 enters the isolation area.

[0065] S2: Vibratory feeder 31 delivers the pins one by one to feeding assembly 32. Feeding assembly 32 sends the pins through the pin inlet 518 into the feeding chamber 516 of pin chuck 51 via feeding hose 6. In step S2, the feeding assembly 32 feeds the pins individually according to the feeding method in Embodiment 3, and blows air through the air inlet 323b to send the pins into the pin inlet 518 through the feeding hose 6. The pins are then guided into the feeding chamber 516 by the guide surface 513c.

[0066] S3: The needle body passes through the discharge port 517, while the end is restricted in the feeding chamber 516. The power component 57 drives the pressure rod 52 to move toward the discharge port 517 and abut against the end of the needle. At the same time, the positioning gripper 53 clamps and positions the needle body part, and works with the robotic arm 4 to align the needle body part with the needle hole. S4: The power unit 57 continues to drive the pressure rod 52 to move down, the discharge port 517 opens, and the pressure rod 52 simultaneously pushes the needle tip of the insert pin out of the discharge port 517, so that the insert pin is inserted into the needle hole; In step S4, the lower pressure seat 54 drives the transmission block 513 to move down via the sliding sleeve 56 and the second compression spring 519. The top support inclined surface 513a of the transmission block 513 supports the two clamping plates 512 to rotate relative to each other, so that the discharge port 517 opens actively. The pressure rod 52 presses down synchronously to push out the needle part. The needle is inserted vertically into the needle hole without the squeezing resistance of the clamping plate 512.

[0067] S5: The power component 57 drives the pressure rod 52 to lift and reset, the discharge port 517 closes, the next needle enters the feeding chamber 516 through the needle inlet 518, and corrects the needle entering the feeding chamber 516 so that the needle falls vertically into the feeding chamber 516. In step S5, during the lifting process of the pressure rod 52, the transmission block 513 is moved slightly upward by the limiting ring 521. The guide surface 513c on the inner side of the bottom of the transmission block 513 acts on the needle head of the insertion pin, adjusting the inclined insertion pin to a vertical state.

[0068] S6: Repeat steps S3 to S5 until all the pin holes on the suture plate are inserted.

[0069] Using the above method, the needle insertion operation of a single needle plate does not require manual operation of each needle. The needle insertion accuracy is guaranteed by the mechanism, which improves the problems of low efficiency and large accuracy fluctuation of manual needle insertion.

[0070] Although this application has been described in conjunction with specific features and embodiments, it is obvious that various modifications and combinations can be made thereto without departing from the spirit and scope of this application. Accordingly, this specification and drawings are merely exemplary illustrations of the application as defined herein, and are to be considered as covering any and all modifications, variations, combinations, or equivalents within the scope of this application. Clearly, those skilled in the art can make various alterations and modifications to this application without departing from its scope. Thus, if such modifications and modifications fall within the scope of this application and its equivalents, this application intends to include such modifications and modifications.

Claims

1. An automatic pin insertion device for automobile seat ventilation, characterized in that, It includes an operating table and a needle mold positioning mechanism, a vibrating feeding mechanism and a robotic arm mounted thereon. A needle insertion mechanism is provided at the free end of the robotic arm. The vibrating feeding mechanism is connected to the needle insertion mechanism through a feeding hose. The needle mold positioning mechanism includes a limiting seat and a corresponding locking component; the vibration feeding mechanism includes a vibratory plate and a corresponding feeding component; the feeding component is connected to the needle inlet of the needle insertion mechanism through the feeding hose. The needle insertion mechanism includes a needle clamp and a pressure rod disposed therein. The feeding hose is connected to the feeding chamber inside the needle clamp. The pressure rod is located inside the feeding chamber and is driven by a power component to move toward the discharge port of the feeding chamber. A positioning gripper is provided corresponding to the discharge port of the needle clamp.

2. The automatic pin insertion device for automobile seat ventilation according to claim 1, characterized in that, The locking assembly includes an X-axis displacement mechanism and a Y-axis displacement mechanism, and the two together drive a limit locking mechanism. The limiting locking mechanism adjusts its position through displacement and works with the limiting seat to fix different sizes of needle plates.

3. The automatic pin insertion device for automobile seat ventilation according to claim 1, characterized in that, The feeding assembly includes a staggered screening mechanism located at the discharge end of the vibratory feeder, used to screen out individual pins from the discharge end of the vibratory feeder and feed them into the feeding hose.

4. The automatic pin insertion device for automobile seat ventilation according to claim 1, characterized in that, The pin clamp includes a support base and openable clamping plates on both sides thereof. The support base includes a base plate and two vertical plates that are vertically disposed at both ends thereof. The clamping plate is rotatably mounted between the two vertical plates via a support shaft, and cooperates with the vertical plates to form the feeding chamber; A first compression spring is provided between the support base and one end of the clamping plate, and the discharge port is formed at the end of the two clamping plates away from the first compression spring.

5. The automatic pin insertion device for automobile seat ventilation according to claim 4, characterized in that, An opening and closing mechanism is also provided between the pair of clamps to actively drive the opening and closing of the pair of clamps.

6. The automatic pin insertion device for automobile seat ventilation according to claim 5, characterized in that, The opening and closing mechanism includes a transmission block that can be lifted and lowered between a pair of clamping plates. A top support slope is provided at the bottom of the transmission block corresponding to the inner side of the clamping plates. The clamping plates rotate relative to each other under the drive of the transmission block, overcoming the elastic force of the first compression spring.

7. The automatic pin insertion device for automobile seat ventilation according to claim 6, characterized in that, The free end of the robotic arm is connected to a connecting plate. One end of the vertical plate is connected to the pin inlet, and the other end of the vertical plate is fixed to the connecting plate by an L-shaped connecting plate. The power assembly includes a lower pressure seat, the top end of the pressure rod is fixedly connected to the lower pressure seat, and a fixing plate is provided between the lower pressure seat and the pin clamp, and the fixing plate is fixed to the connecting plate. A sliding sleeve is provided through and slidably disposed on the fixed plate. The bottom of the sliding sleeve is connected to the transmission block. The transmission block passes through the base plate and is slidably connected to it. The lower pressure seat drives the transmission block to move through the sliding sleeve. A stepped ring is provided at the bottom of the sliding sleeve, and a return spring is fitted on the sliding sleeve.

8. The automatic pin insertion device for automobile seat ventilation according to claim 7, characterized in that, A feed port is provided on the transmission block corresponding to the pin inlet, and a guide surface is provided along the circumference of the feed port edge, the guide surface being flush with the inner wall of the pin inlet; The transmission block is connected to the sliding sleeve and can slide relative to it. A second compression spring is provided between the transmission block and the sliding sleeve. The spring stiffness of the second compression spring is greater than that of the return spring.

9. The automatic pin insertion device for automobile seat ventilation according to claim 8, characterized in that, The top of the transmission block is provided with a guide rod, and the top of the guide rod is provided with a stepped retaining ring. The bottom of the sliding sleeve is provided with a cylindrical groove, and the bottom protrudes inward to form a limit with the stepped retaining ring. The second compression spring is sleeved on the outside of the guide rod. The pressure rod passes through the sliding sleeve and the transmission block, and a limit ring is provided on the rod body of the pressure rod located in the feeding chamber.

10. A method for inserting pins in an automatic pin insertion device for automotive seat ventilation, employing the automatic pin insertion device for automotive seat ventilation as described in any one of claims 1 to 9, characterized in that, Includes the following steps: S1: Place the needle plate on the limiting seat and press and fix the needle plate by the locking assembly; S2: The vibratory feeder delivers the pins one by one to the feeding assembly, and the feeding assembly feeds the pins through the feeding hose into the feeding chamber of the pin chuck via the pin inlet; S3: The needle body passes through the discharge port, while the end is restricted in the feeding chamber. The power component drives the pressure rod to move toward the discharge port and abut against the end of the needle. At the same time, the positioning claw clamps and positions the needle body, and works with the robotic arm to align the needle body with the needle hole. S4: The power component continues to drive the pressure rod to move downward, the discharge port opens, and the pressure rod simultaneously pushes the needle tip of the insertion pin out of the discharge port, so that the insertion pin is inserted into the needle hole; S5: The power component drives the pressure rod to lift and reset, the discharge port closes, the next insertion needle enters the feeding chamber through the insertion needle inlet, and corrects the insertion needle entering the feeding chamber so that the insertion needle falls vertically into the feeding chamber; S6: Repeat steps S3 to S5 until all the pin holes on the suture plate are inserted.

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