Automatic grinding and deburring device for needle plate of needle punching machine

Abstract

An automatic grinding deburring device for a needle plate of a needle loom belongs to the technical field of non-woven textile machinery manufacturing. The device comprises a frame, an upper chamber partition plate and a lower chamber partition plate are formed in the frame, and an upper chamber, a lower chamber and a needle plate grinding working cavity are formed. An upper grinding die is arranged in the needle plate grinding working cavity, and an upper grinding die lifting mechanism is arranged in the upper chamber of the frame. An upper part of an upper grinding material receiving and discharging mechanism is located in the upper chamber of the frame, and a lower part is located in the needle plate grinding working cavity. A lower grinding die is arranged in the needle plate grinding working cavity and is fixed with the lower chamber partition plate of the frame. A grinding material receiving and discharging mechanism is located in the lower chamber of the frame and is connected with the lower grinding die. A needle plate left feeding mechanism is arranged on the left side of the frame, and a needle plate right feeding mechanism is arranged on the right side of the frame. The device has the advantages of automatic grinding deburring, guaranteeing the quality of the needle plate and improving the deburring efficiency, avoiding secondary damage to the needle plate, and saving labor resources.

Description

Technical Field

[0001] This utility model belongs to the field of nonwoven machinery manufacturing technology, specifically relating to an automatic grinding and deburring device for needle plates of a needle punching machine. Background Technology

[0002] As is known in the industry, the needle plate is the core actuator of a nonwoven needle punching machine. Its function is to prevent the fibers carried by the needles from leaving the needle plate, ensuring that thousands of needles move in an orderly, precise, and efficient manner according to the process requirements. It directly determines the effect of fiber entanglement and is closely related to the strength, appearance, uniformity, production stability, and efficiency of nonwoven products.

[0003] Generally, the needle plate holes, which are densely packed on the needle plate for the needles to pass through, are mainly, but not limited to, machined by CNC machine tools. The purpose of machining these needle holes is to remove material and create openings. During the machining process, burrs inevitably form on the hole walls. These burrs are caused by the forced removal of material. Specifically, during machining, the contact surface between the drill bit and the needle plate forms a rough surface, and the edge of the hole forms a burr edge on the needle plate surface. At the moment of penetration, the machining energy attenuates and / or diffuses at the exit point, resulting in burrs at the exit end (i.e., the "needle plate hole opening" or "needle hole opening"). This phenomenon is what is referred to as burrs.

[0004] If the aforementioned burrs are not removed, or if the inlet and outlet surfaces of the needle plate are not subjected to targeted and consistent grinding, it will undoubtedly affect the smoothness and unobstructedness of the needle hole channels. Smooth and unobstructed needle hole channels can improve needle punching production efficiency, enhance quality, and reduce costs. For example, it can fundamentally reduce fiber hole buildup and even blockage at the hole openings, reducing the probability of needle breakage and consequently reducing downtime, thus improving the quality of nonwoven products.

[0005] Existing technologies generally rely on manual methods to clean burrs from needle plates. This method has several drawbacks: First, it is inefficient, becoming a bottleneck in the production process and limiting capacity. Second, it suffers from inconsistent quality, as the cleaning effect depends entirely on the operator's skill, experience, physical strength, and even mood. Even the same worker can produce significantly different results at different times, leading to inconsistent quality between needle plates. Third, it easily results in secondary operations or insufficient cleaning, such as over-grinding or lack of concentration, which can create grooves at the hole opening, damaging the hole shape and potentially rendering the needle plate unusable. Fourth, it easily damages the hole wall; for example, improper control of the tool angle during manual work can scratch the inside of the hole, creating new friction points. Fifth, it wastes valuable labor resources and increases labor costs.

[0006] Undoubtedly, replacing human labor with machines is a good choice. However, since the deburring device of the needle plate of the acupuncture machine is a non-standard device, no corresponding equipment and technical information have been found in either the needle plate manufacturers or in the publicly available Chinese and foreign patent documents. Utility Model Content

[0007] The objective of this invention is to provide an automatic grinding and deburring device for needle plates of acupuncture machines that helps improve deburring efficiency, ensures needle plate quality, avoids secondary damage to the needle plate, and saves valuable labor resources. The present invention accomplishes its objective as follows: An automatic grinding and deburring device for needle plates of an acupuncture machine includes a frame, which is directly or indirectly installed on the floor of the automatic grinding work area. Within the frame, located at its midpoint in the height direction, are an upper chamber partition and a lower chamber partition. The space between the upper chamber partition and the opposite side of the top cover of the frame forms the upper chamber. The lower part of the lower chamber partition forms the lower chamber. The space between the opposite sides of the upper and lower chamber partitions forms the needle plate grinding working chamber. The left and right sides of the needle plate grinding working chamber, at corresponding positions, form side openings. An upper grinding mold lifting mechanism and an upper grinding mold are also included. The upper grinding mold is vertically displaced within the needle plate grinding working chamber. The upper grinding mold lifting mechanism is located within the upper chamber of the frame and... The upper grinding plate grinding chamber extends through the upper chamber partition of the frame and connects to the upper grinding mold; an upper grinding material receiving and discharging mechanism is located in the upper chamber of the frame, and the lower part is located in the needle plate grinding chamber and connected to the upper grinding mold; an grinding material holding and discharging mechanism and a lower grinding mold are provided. The lower grinding mold is located below the upper grinding mold in the needle plate grinding chamber and is fixed to the lower chamber partition of the frame. The grinding material holding and discharging mechanism is located in the lower chamber of the frame and connected to the lower grinding mold; a needle plate left feeding mechanism and a needle plate right feeding mechanism are provided. The needle plate left feeding mechanism is located on the left side of the frame, corresponding to the left side opening of the needle plate grinding chamber, while the needle plate right feeding mechanism is located on the right side of the frame, corresponding to the right side opening of the needle plate grinding chamber.

[0008] In a specific embodiment of this utility model, a pusher cylinder clearance hole is provided in the middle of the upper chamber partition of the frame; a left lifting cylinder clearance hole for the upper grinding mold is provided on the left side corresponding to the pusher cylinder clearance hole; and a right lifting cylinder clearance hole for the upper grinding mold is provided on the right side corresponding to the pusher cylinder clearance hole. A lower grinding cylinder clearance cavity is provided in the center of the lower chamber partition of the frame, corresponding to the pusher cylinder clearance hole. The upper grinding mold lifting mechanism disposed in the upper chamber of the frame has clearance holes corresponding to the left lifting cylinder clearance hole and the upper grinding mold clearance hole. The right lifting cylinder column extends downward into the needle plate grinding working chamber and connects to both ends of the upper grinding mold; the upper abrasive receiving and discharging mechanism, located in the upper chamber of the frame, extends downward into the needle plate grinding working chamber corresponding to the position of the pushing cylinder clearance hole and connects to the middle of the upper grinding mold; the abrasive holding and discharging mechanism, located in the lower chamber of the frame, connects to the middle of the lower grinding mold corresponding to the position of the lower abrasive cylinder clearance cavity; the needle plate left feeding mechanism located on the left side of the frame and the needle plate right feeding mechanism located on the right side of the frame are aligned in the vertical direction of the frame.

[0009] In another specific embodiment of this utility model, the upper grinding mold lifting mechanism includes a left lifting cylinder and a right lifting cylinder. The left lifting cylinder is located in the upper cavity of the frame and is fixed longitudinally to the upward-facing side of the upper cavity partition plate at a position corresponding to the clearance hole of the left lifting cylinder. The left lifting cylinder has its cylinder column facing downward and extends through the clearance hole into the needle plate grinding working cavity, connecting to the left end of the upper grinding mold. The right lifting cylinder is located in the upper cavity... The upper chamber of the frame is fixed longitudinally to the side of the upper chamber partition plate facing upwards at the position corresponding to the clearance hole of the right lifting cylinder of the upper grinding mold. The right lifting cylinder of the upper grinding mold faces downwards and extends through the clearance hole of the right lifting cylinder of the upper grinding mold into the needle plate grinding working chamber and connects to the right end of the upper grinding mold. The upper grinding mold and the upper grinding material receiving and discharging mechanism are moved away from the lower grinding mold or towards the lower grinding mold by the rising or falling of the left lifting cylinder and the right lifting cylinder of the upper grinding mold.

[0010] In another specific embodiment of this utility model, the left lifting cylinder and the right lifting cylinder of the upper grinding mold are hydraulic cylinders.

[0011] In another specific embodiment of this utility model, the upper abrasive receiving and discharging mechanism includes a pushing cylinder and a receiving cylinder. The pushing cylinder is vertically displaced within the upper cavity of the frame, and its lower end corresponds to the pushing cylinder clearance hole. A pushing cylinder upper piston is fixed at the upper end of the pushing cylinder column, and the pushing cylinder upper piston is located within the pushing cylinder cavity. The lower end of the pushing cylinder column extends from the top surface of the upper end of the receiving cylinder into the receiving cylinder cavity, and a pushing cylinder is fixed at the lower end of the pushing cylinder column. The lower piston of the material pushing cylinder has a sealed sliding pair formed by the outer edges of its periphery and the cavity wall of the receiving cylinder. The receiving cylinder is located in the needle plate grinding working chamber. The upper end of the receiving cylinder corresponds to the relief hole of the pushing cylinder, and the top surface of the upper end of the receiving cylinder is fixed to the lower end face of the pushing cylinder. A relief hole for the lower end of the pushing cylinder to extend into the cavity of the receiving cylinder is opened at the center of the top surface of the upper end of the receiving cylinder. A receiving cylinder fixing flange is formed on the outer wall of the lower end of the receiving cylinder, and the receiving cylinder fixing flange is fixed to the upper grinding mold. The pushing cylinder is a hydraulic cylinder.

[0012] In another specific embodiment of this utility model, the abrasive material feeding and discharging mechanism includes a feeding cylinder and an abrasive material supply cylinder. The feeding cylinder and the abrasive material supply cylinder are located in the lower cavity of the frame, and the feeding cylinder is fixed to the lower end of the abrasive material supply cylinder in a longitudinal cantilever state. A lower piston of the feeding cylinder is fixed to the lower end of the feeding cylinder column of the feeding cylinder, and the lower piston of the feeding cylinder is located in the feeding cylinder cavity of the feeding cylinder. The upper end of the feeding cylinder column extends to the abrasive material supply cylinder. A piston on a feeding cylinder is fixed inside the cavity and at its upper end. The piston on the feeding cylinder forms a sealed sliding pair with the cavity wall of the abrasive supply cylinder cavity. An abrasive supply cylinder fixing flange is formed on the upper outer wall of the abrasive supply cylinder and around its perimeter. The abrasive supply cylinder fixing flange is detachably fixed to the lower abrasive mold. A feeding cylinder clearance hole is opened at the center of the bottom surface of the lower end of the abrasive supply cylinder for the upper end of the feeding cylinder to extend into the abrasive supply cylinder cavity. The feeding cylinder is a hydraulic cylinder.

[0013] In a further specific embodiment of this utility model, the structure of the left needle plate feeding mechanism is the same as that of the right needle plate feeding mechanism. The right needle plate feeding mechanism includes a needle pressing plate device, a needle supporting plate device, an intermediate support, a power device, and a needle supporting plate roller. The needle pressing plate device is fixed to the frame at a position above the right side of the needle plate grinding working chamber. The needle supporting plate device is fixed to the frame at a position below the right side of the needle plate grinding working chamber and is located below the needle pressing plate device. The intermediate support is disposed between the needle pressing plate device and the needle supporting plate device. The power device is disposed below the intermediate support and is located between the lower part of the needle pressing plate device and the upper right side of the needle supporting plate device. The needle supporting plate roller is located below the needle pressing plate device and slides vertically with the intermediate support.

[0014] In a further specific embodiment of this utility model, the needle press plate device includes a needle press plate roller actuating cylinder fixing frame, a needle press plate roller actuating cylinder, a needle press plate roller, and a needle press plate roller pivot support frame. The left side plate of the needle press plate roller actuating cylinder fixing frame is fixed to the machine frame at a position above the right side corresponding to the needle plate grinding working chamber. The needle press plate roller actuating cylinder is fixed to the bottom plate of the needle press plate roller actuating cylinder fixing frame in a longitudinal cantilever state at a position below the needle press plate roller actuating cylinder fixing frame. The needle plate roller actuating cylinder has its cylinder column facing downwards and fixed at the midpoint of the length direction of an actuating cylinder column lifting linkage plate. Lifting guide columns are longitudinally fixed at both the front and rear ends of the lifting linkage plate, forming a sliding pair with the cylinder body of the needle plate roller actuating cylinder. The top of the needle plate roller pivot support frame is tightly fixed to the downward-facing side of the lifting linkage plate. A pair of needle plate roller shafts are longitudinally cantilevered at the front and rear ends of the needle plate roller pivot support frame. The head support arm and the pressure plate roller are rotatably mounted in the middle of the pressure plate roller shaft at a position corresponding to the lower ends of a pair of pressure plate roller shaft head support arms, and the front and rear shaft ends of the pressure plate roller shaft are supported on a pair of pressure plate roller shaft head support arms; the needle plate support device includes a needle plate support cylinder fixing frame and a needle plate support cylinder, the left side plate of the needle plate support cylinder fixing frame is fixed to the frame at a position corresponding to the lower right side of the needle plate grinding working chamber, and the needle plate support cylinder is positioned corresponding to the needle plate action. The lower part of the cylinder fixing frame is fixed to the needle plate action cylinder fixing frame in a longitudinal cantilever state. The needle plate action cylinder column of the needle plate action cylinder extends upward and moves up and down to the upper part of the needle plate action cylinder fixing frame and is fixed at the middle of the length direction of the action cylinder column linkage plate. A linkage plate guide rod is fixed in a longitudinal state on the lower surface of the front end and rear end of the action cylinder column linkage plate. The lower end of the linkage plate guide rod slides up and down to the lower part of the needle plate action cylinder fixing frame and forms a sliding pair with the cylinder body of the needle plate action cylinder.The intermediate support includes a front connecting plate and a rear connecting plate. The front connecting plate is fixed between the front end of the base plate of the needle plate roller cylinder fixing frame and the front end of the needle support cylinder fixing frame. A sliding guide ridge for the front roller seat is formed on the side of the front connecting plate facing the rear connecting plate. A clearance groove for the front end of the needle support roller shaft is provided at the lower end of the front connecting plate. The rear connecting plate is fixed between the rear end of the base plate of the needle plate roller cylinder fixing frame and the rear end of the needle support cylinder fixing frame. Between the two sides facing each other, a rear roller seat sliding guide protrusion is formed on the side of the rear connecting plate of the fixed frame facing the front connecting plate of the fixed frame in the height direction and at the position corresponding to the sliding guide protrusion of the front roller seat. A rear clearance groove for the roller head of the needle support plate is formed at the lower end of the rear connecting plate of the fixed frame and at the position corresponding to the clearance groove in front of the needle support plate roller head. The power unit includes a motor, a reduction gearbox, a needle plate traveling drive roller, a roller shaft support mounting platform, a front roller shaft support, and a rear roller shaft support. The motor and the reduction gearbox are driven together, and the reduction gearbox, together with the motor, is located at the lower end of the front connecting plate of the fixed frame. The front end is fixed to the gearbox mounting plate, which is fixed to the front roller shaft support. The front roller shaft support is fixed to the upward-facing side of the front end of the roller shaft support mounting platform, and simultaneously forms a sliding pair with the sliding guide rib of the front roller support for vertical sliding. The needle plate moving drive roller corresponds to the right side of the needle support roller. The front end of the needle plate moving drive roller shaft is rotatably supported on the front roller shaft support via a bearing and extends through the clearance groove at the front of the needle support roller shaft to the front of the front roller shaft support, where it is connected to the gearbox for transmission. The rear end of the needle plate moving drive roller shaft is connected to the gearbox via a shaft. The front roller bearing is rotatably supported on the rear roller bearing support and extends to the rear of the rear roller bearing support, protruding into the rear clearance groove of the needle plate roller head. The rear roller bearing support and the sliding guide protrusion of the rear roller bearing form a sliding pair that slides up and down. The rear roller bearing support and the roller bearing support mounting platform are fixed to the upward-facing rear end, and the roller bearing support mounting platform is located above the actuating cylinder column linkage plate and fixed to the actuating cylinder column linkage plate. The needle plate roller is located in the middle of the needle plate roller shaft, and the front end of the needle plate roller shaft is rotatably supported on the front roller bearing support, while the rear end is rotatably supported on the rear roller bearing support.

[0015] In another specific embodiment of this utility model, a roller bearing mounting platform limiting stud hole is provided on the fixing frame of the needle plate actuating cylinder at the front and rear of the right end. A limiting stud is fixed at the position corresponding to the limiting stud hole and locked by a limiting stud locking nut screwed on the limiting stud. The limiting stud limits the extreme position of the roller bearing mounting platform above the fixing frame of the needle plate actuating cylinder. A needle plate guide roller shaft adjustment hole is provided on the roller bearing mounting platform at the front and rear of the right end. A needle plate guide roller is arranged longitudinally at the position corresponding to the needle plate guide roller shaft adjustment hole. The lower end of the needle plate guide roller shaft passes downward through the needle plate guide roller shaft adjustment hole and is locked by a locking nut screwed on the needle plate guide roller shaft.

[0016] In another specific embodiment of this utility model, the structure of the lower grinding mold is the same as that of the upper grinding mold. The upper grinding mold includes an upper mold fixing frame and an upper mold. A piston mating hole for the upper cylinder is opened in the middle of the upper mold fixing frame. A left connecting hole for the actuating cylinder is opened at the left end of the upper mold fixing frame, and a right connecting hole for the actuating cylinder is opened at the right end of the upper mold fixing frame. The upper mold fixing frame is fixed to the lower surface of the receiving cylinder fixing flange seat on the upward side and around the piston mating hole for the upper cylinder. The piston of the pushing actuating cylinder corresponds to and mates with the piston mating hole for the upper cylinder. The lower end of the left lifting actuating cylinder of the upper grinding mold is positioned at the... The upper grinding mold is fixed at the left end of the upper mold fixing frame at the position of the left connecting hole of the actuating cylinder. The lower end of the right lifting actuating cylinder of the upper grinding mold is fixed at the right end of the upper mold fixing frame at the position corresponding to the right connecting hole of the actuating cylinder. The upper mold is fixed at the position below the upper mold fixing frame. On the upper mold, and at the position below the lower piston mating hole of the upper cylinder, there is an upper cylinder lower piston mating hole interface with a diameter equal to that of the upper cylinder lower piston mating hole. At the center of the upper mold, there is an upper mold material passage. Between the upper cylinder lower piston mating hole interface and the upper mold material passage, there is a material flow slope inclined towards the upper mold material passage. The area of ​​the material flow slope constitutes the grinding material cavity of the upper grinding mold.

[0017] The technical advantages of the present invention are as follows: The abrasive material can be fed from bottom to top through the lower grinding mold, through the needle holes on the needle plate located between the upper and lower grinding molds, and into the upper grinding mold and the receiving cylinder cavity of the receiving cylinder via the abrasive material feeding and discharging mechanism fixedly connected to the lower grinding mold. The upper grinding mold lifting mechanism, together with the upper grinding mold, drives the abrasive material receiving and discharging mechanism connected to the upper grinding mold to return the abrasive material entering the upper grinding mold from the surface of the needle plate through the needle holes back into the lower grinding mold and the abrasive material feeding and discharging mechanism. During the repeated alternation of the aforementioned actions, burrs and nodules on the hole walls and the upper and lower openings of the needle holes on the needle plate are removed. Because it is an automated grinding and deburring process, it helps to ensure the quality of the needle plate and improve deburring efficiency, avoids secondary damage to the needle plate, and saves valuable labor resources. Attached Figure Description

[0018] Figure 1 This is a structural diagram of an embodiment of the present utility model; Figure 2 In order to be in Figure 1 A cross-sectional view showing the state in which a needle plate is introduced between the upper and lower grinding dies; Figure 3 for Figure 1 The diagram shows a detailed structural diagram of the right needle plate feeding mechanism. Figure 4 for Figure 1 and Figure 2 A detailed structural diagram of the upper grinding mold is shown; Figure 5 for Figure 4 A diagram showing the view from the bottom; Figure 6 This is a schematic diagram illustrating an application example of this utility model.

[0019] In the diagram: 1. Frame; 11. Upper chamber partition of the frame; 111. Push cylinder clearance hole; 112. Left lifting cylinder clearance hole of the upper grinding die; 113. Right lifting cylinder clearance hole of the upper grinding die; 12. Lower chamber partition of the frame; 121. Lower grinding cylinder clearance cavity; 13. Top cover plate; 14. Upper chamber of the frame; 15. Lower chamber of the frame; 16. Needle plate grinding working chamber; 161. Side opening of the grinding working chamber of the frame; 2. Upper grinding die lifting mechanism; 21. Left lifting cylinder of the upper grinding die; 211. Left lifting cylinder column of the upper grinding die; 2111. Locking nut at the end of the left lifting cylinder column of the upper grinding die; 22. Right lifting cylinder of the upper grinding die; 221. Right lifting cylinder column of the upper grinding die; 2211. Locking nut at the end of the right lifting cylinder column of the upper grinding die; 3. 31. Upper grinding mold; 311. Upper mold fixing bracket; 312. Upper cylinder column lower piston mating hole; 313. Actuating cylinder left connecting hole; 314. Actuating cylinder column right connecting hole; 32. Upper mold fixing bracket screw hole; 32. Upper mold; 321. Upper cylinder column lower piston mating hole interface; 322. Upper mold material passage; 323. Material flow slope; 324. Upper grinding mold grinding material cavity; 325. Upper mold fixing screw hole; 4. Upper grinding material receiving and discharging mechanism; 41. Pushing cylinder; 411. Pushing cylinder column; 4111. Pushing cylinder upper piston; 4112. Pushing cylinder column lower piston; 412. Pushing cylinder cavity; 42. Receiving cylinder; 421. Receiving cylinder cavity; 422. Pushing cylinder column clearance hole; 423. Receiving cylinder fixing flange seat; 5. 51. Abrasive material feeding and discharging mechanism; 511. Feeding cylinder; 5111. Feeding cylinder column; 5112. Lower piston of feeding cylinder column; 512. Feeding cylinder cavity; 52. Abrasive material supply cylinder; 521. Abrasive material supply cylinder cavity; 522. Abrasive material supply cylinder fixing flange seat; 523. Feeding cylinder column clearance hole; 6. Lower grinding mold; 61. Lower mold fixing frame; 611. Lower mold fixing frame screw; 62. Lower mold; 621. Abrasive material cavity of lower grinding mold; 7. Left needle plate feeding mechanism; 8. Right needle plate feeding mechanism; 81. Needle plate device; 811. Needle plate roller action cylinder fixing frame; 8111. Left side plate of needle plate roller action cylinder fixing frame; 8112. Base plate of needle plate roller action cylinder fixing frame; 812. 8121. Pressure needle plate roller actuating cylinder; 81211. Actuating cylinder roller actuating cylinder column; 81212. Actuating cylinder column lifting linkage plate; 813. Linkage plate lifting guide column; 8131. Pressure needle plate roller; 814. Pressure needle plate roller pivot support frame; 8141. Pressure needle plate roller shaft head support arm; 8142. Pressure needle plate roller pivot support frame fixing screw; 82. Needle support plate device; 821.8211. Needle plate actuating cylinder fixing bracket; 822. Needle plate actuating cylinder; 8221. Needle plate actuating cylinder column; 82211. Actuating cylinder column linkage plate; 82212. Linkage plate guide rod; 823. Roller support seat mounting platform limit stud hole; 8231. Limit stud; 82311. Limit stud locking nut; 83. Intermediate bracket; 831. Fixing bracket front connecting plate; 8311. Front roller seat sliding guide protrusion; 8312. Needle plate roller shaft head front clearance groove; 832. Fixing bracket rear connecting plate; 8321. Rear roller seat sliding guide protrusion; 8322. Needle plate roller shaft head rear clearance groove; 84. Power unit; 841. Motor; 842. Gearbox; 8421. Gearbox fixing plate; 843. 8431. Needle plate moving drive roller; 844. Roller shaft moving drive roller shaft; 8441. Needle plate guide roller shaft adjustment hole; 8442. Needle plate guide roller; 84421. Needle plate guide roller shaft; 84422. Locking nut; 8443. Platform fixing screw; 845. Front roller shaft support; 846. Rear roller shaft support; 85. Needle plate support roller; 9. Needle plate; 91. Needle hole; 10. Needle plate bracket; 101. Needle plate guide roller; 20. Abrasive material. Detailed Implementation

[0020] In order to better understand the technical essence and beneficial effects of this utility model, the applicant provides a detailed description below by way of embodiments. However, the description of the embodiments is not intended to limit the solution of this utility model. Any formal but not substantive equivalent transformations made based on the concept of this utility model should be considered within the scope of the technical solution of this utility model.

[0021] In the following description, all directional or positional concepts involving up, down, left, right, front, and back are based on... Figure 1 The location and state of the object are taken as examples, and therefore should not be construed as a special limitation on the technical solution provided by this utility model.

[0022] Please see Figure 1 and Figure 2The diagram shows a frame 1. In this embodiment, the frame 1 is directly installed on the floor of the automatic needle grinding workshop during use. An upper chamber partition 11 and a lower chamber partition 12 are formed within the frame 1, located at its midpoint in the height direction. The space between the upper chamber partition 11 and the opposite side of the top cover 13 of the frame 1 (which can be temporarily removed as needed) forms the upper chamber 14. The lower part of the lower chamber partition 12 forms the lower chamber 15. The space between the opposing sides of the upper and lower chamber partitions 11 and 12 forms a needle plate grinding working chamber 16. The left and right sides of this needle plate grinding working chamber 16, and their corresponding positions, form side openings 161 of the frame grinding working chamber. An upper grinding mold lifting mechanism 2 and an upper grinding mold 3 are shown. The upper grinding mold 3 is vertically displaced within the needle plate grinding working chamber 16. The upper grinding mold lifting mechanism 2 is located within the aforementioned upper chamber 14 of the frame and extends through the upper chamber partition 11 to the needle plate grinding chamber. The working cavity 16 is connected to the aforementioned upper grinding mold 3; an upper grinding material receiving and discharging mechanism 4 is shown, the upper part of which is located in the aforementioned upper chamber 14 of the frame, and the lower part is located in the needle plate grinding working cavity 16 and connected to the aforementioned upper grinding mold 3; an grinding material holding and discharging mechanism 5 and a lower grinding mold 6 are shown, the lower grinding mold 6 is set in the needle plate grinding working cavity 16 at a position corresponding to below the aforementioned upper grinding mold 3 and is fixed to the aforementioned lower chamber partition 12 of the frame, the grinding material... The material feeding and discharging mechanism 5 is located in the lower chamber 15 of the aforementioned frame and is connected to the lower grinding mold 6; a needle plate left feeding mechanism 7 and a needle plate right feeding mechanism 8 are shown. The needle plate left feeding mechanism 7 is located in the middle region of the left side of the frame 1 at the position of the side opening 161 of the frame grinding working chamber corresponding to the left side of the aforementioned needle plate grinding working chamber 16, while the needle plate right feeding mechanism 8 is located in the middle region of the right side of the frame 1 at the position of the side opening 161 of the frame grinding working chamber corresponding to the right side of the needle plate grinding working chamber 16.

[0023] The aforementioned left needle plate feeding mechanism 7 is positioned in the middle left region of the frame 1, corresponding to the opening on the left side of the grinding chamber 16. This means that the width of the left needle plate feeding mechanism 7 is narrower than the width of the left side of the frame. In other words, there is still exposed space on both the front and rear sides of the left side of the frame at the front and rear of the left needle plate feeding mechanism 7. The right needle plate feeding mechanism 8 is the same, and therefore will not be described further.

[0024] In another embodiment, a separately manufactured frame support is fixed on the floor of the automatic needle grinding workshop to support the frame 1, thereby placing the frame 1 in a state of being suspended above the floor. This confirms the applicant's statement above that the frame 1 is indirectly placed on the floor of the automatic needle grinding workshop. In conclusion, whether the frame 1 is placed directly or indirectly on the floor of the automatic needle grinding workshop, it should be considered within the scope of the technical content disclosed in this utility model.

[0025] In this embodiment, the bottom of the aforementioned lower chamber 15 of the frame is not closed. However, it is also possible to provide a pull-out insert plate with a drawer effect at the bottom of the lower chamber 15. In addition, it is also possible to provide an opening and closing door or an observation window at a reasonable position on the front or rear side of the frame 1, for example, at the position corresponding to the abrasive material feeding and discharging mechanism 5.

[0026] A pusher cylinder clearance hole 111 is provided in the middle of the upper chamber partition 11 of the aforementioned frame. A left lifting cylinder clearance hole 112 for the upper grinding mold is provided on the left side of the pusher cylinder clearance hole 111, and a right lifting cylinder clearance hole 113 for the upper grinding mold is provided on the right side of the pusher cylinder clearance hole 111. A lower grinding cylinder clearance cavity 121 corresponding to the pusher cylinder clearance hole 111 is provided in the center of the lower chamber partition 12 of the aforementioned frame. The upper grinding mold lifting mechanism 2, which is provided in the upper chamber 14 of the aforementioned frame, provides clearance holes 112 and 113 for the upper grinding mold left lifting cylinder clearance hole 112 and the upper grinding mold right lifting cylinder clearance hole 113. The cylinder column clearance hole 113 extends downward into the aforementioned needle plate grinding working chamber 16 and connects to both ends of the aforementioned upper grinding mold 3; the aforementioned upper grinding material receiving and discharging mechanism 4, located in the aforementioned upper chamber 14 of the frame, extends downward into the aforementioned needle plate grinding working chamber 16 at the position corresponding to the aforementioned pushing cylinder clearance hole 111 and connects to the middle of the aforementioned upper grinding mold 3; the aforementioned grinding material holding and discharging mechanism 5, located in the lower chamber 15 of the frame, connects to the middle of the aforementioned lower grinding mold 6 at the position corresponding to the aforementioned lower grinding cylinder clearance cavity 121; the needle plate left feeding mechanism 7 located on the left side of the aforementioned frame 1 and the aforementioned needle plate right feeding mechanism 8 located on the right side of the frame 1 are aligned in the vertical direction of the frame 1.

[0027] The aforementioned upper grinding mold lifting mechanism 2 includes a left upper grinding mold lifting cylinder 21 and a right upper grinding mold lifting cylinder 22. The left upper grinding mold lifting cylinder 21 is located in the aforementioned upper chamber 14 of the frame and is fixed longitudinally to the upward-facing side of the aforementioned upper chamber partition 11 at a position corresponding to the aforementioned left upper grinding mold lifting cylinder column clearance hole 112. The left upper grinding mold lifting cylinder column 211 of the left upper grinding mold lifting cylinder 21 faces downward and extends through the aforementioned left upper grinding mold lifting cylinder column clearance hole 112 into the aforementioned needle plate grinding working chamber 16 and connects to the left end of the aforementioned upper grinding mold 3. The right upper grinding mold lifting cylinder 22 is located in the aforementioned upper chamber 14 of the frame. Furthermore, the upper grinding mold right lifting cylinder column 22 is fixed longitudinally to the upward-facing side of the upper chamber partition 11 of the aforementioned frame at the position corresponding to the aforementioned upper grinding mold right lifting cylinder column clearance hole 113. The upper grinding mold right lifting cylinder column 221 of the upper grinding mold right lifting cylinder 22 faces downward and extends through the aforementioned upper grinding mold right lifting cylinder column clearance hole 113 into the aforementioned needle plate grinding working chamber 16, connecting with the right end of the aforementioned upper grinding mold 3. The rising or falling of the aforementioned upper grinding mold left lifting cylinder column 211 and upper grinding mold right lifting cylinder column 221 drives the aforementioned upper grinding mold 3 and the upper grinding material receiving and discharging mechanism 4 to move in a direction away from the aforementioned lower grinding mold 6 or in a direction towards the lower grinding mold 6. The applicant will explain this in detail below.

[0028] The left and right lifting cylinders 21 and 22 of the upper grinding mold, which correspond to each other, must work synchronously. When the cylinder columns 211 and 221 of the upper grinding mold lifting cylinders 21 and 22 move upward synchronously (i.e., move into the cylinder body), they simultaneously drive the upper grinding mold 3 and the upper grinding material receiving and discharging mechanism 4 (which will be mentioned later) to move upward. Conversely, when the cylinder columns 211 and 221 of the upper grinding mold lifting cylinders 21 and 22 move downward synchronously (i.e., extend out of the cylinder body), they simultaneously drive the upper grinding mold 3 and the upper grinding material receiving and discharging mechanism 4 to move downward, and so on, alternating between these actions.

[0029] In this embodiment, the aforementioned left lifting cylinder 21 and right lifting cylinder 22 of the upper grinding mold are hydraulic cylinders. If pneumatic cylinders are used to replace the aforementioned left and right lifting cylinders 21 and 22 of the upper grinding mold, then it should be considered an equivalent substitution and still fall within the scope of the technical content disclosed in this utility model.

[0030] See you later Figure 1 and Figure 2The aforementioned upper abrasive receiving and discharging mechanism 4 includes a pushing cylinder 41 and a receiving cylinder 42. The pushing cylinder 41 is vertically displaced within the aforementioned upper chamber 14 of the frame, and its lower end corresponds to the aforementioned pushing cylinder clearance hole 111. A pushing cylinder upper piston 4111 is fixed at the upper end of the pushing cylinder column 411 of the pushing cylinder 411. The pushing cylinder upper piston 4111 is located within the pushing cylinder cavity 412 of the pushing cylinder 41. The lower end of the pushing cylinder column 411 extends from the upper end of the receiving cylinder 42. The top surface extends into the receiving cylinder cavity 421 of the receiving cylinder 42, and a lower piston 4112 of the pushing cylinder is fixed at the lower end of the pushing cylinder 411. The outer edges of the lower piston 4112 of the pushing cylinder form a sealing sliding pair with the cavity wall of the receiving cylinder cavity 421. The receiving cylinder 42 is located in the needle plate grinding working chamber 16. The upper end of the receiving cylinder 42 corresponds to the aforementioned pushing cylinder clearance hole 111, and the top surface of the upper end of the receiving cylinder 42 is fixed to the lower end face of the pushing cylinder 41. The fixing method is preferably welding, but fasteners such as screws can also be used for fixing. A relief hole 422 for the lower end of the aforementioned pushing cylinder 411 to extend into the receiving cylinder cavity 421 is provided at the center of the upper top surface of the receiving cylinder 42. A receiving cylinder fixing flange seat 423 is formed on the lower outer wall of the receiving cylinder 42, and the receiving cylinder fixing flange seat 423 is fixed to the aforementioned upper grinding mold 3.

[0031] In this embodiment, the aforementioned pushing cylinder 41 is a hydraulic cylinder, but if a pneumatic cylinder is used instead of a hydraulic cylinder, then the description is the same as that of the left and right lifting cylinders 21 and 22 of the upper grinding mold.

[0032] See you later Figure 1 and Figure 2The aforementioned abrasive feeding and discharging mechanism 5 includes a feeding cylinder 51 and an abrasive supply cylinder 52. The feeding cylinder 51 and the abrasive supply cylinder 52 are located within the lower chamber 15 of the aforementioned frame. The feeding cylinder 51 is fixed to the lower end of the abrasive supply cylinder 52 in a longitudinal cantilever state. Welding is preferred as the fixing method, but fasteners such as screws can also be used. A lower piston 5111 is fixed to the lower end of the feeding cylinder column 511 of the feeding cylinder 51. This lower piston 5111 is located within the feeding cylinder cavity 512 of the feeding cylinder 51. The upper end of the feeding cylinder column 511 extends into the abrasive supply cylinder cavity 521 of the abrasive supply cylinder 52, and an upper piston 5112 is fixed to the upper end. The upper piston 5112 forms a cavity wall with the abrasive supply cylinder cavity 521. A sealing sliding pair is formed. An abrasive supply cylinder fixing flange seat 522 is formed on the upper outer wall of the abrasive supply cylinder 52 and around its perimeter. The abrasive supply cylinder fixing flange seat 522 is detachably fixed to the aforementioned lower abrasive mold 6. A feeding cylinder relief hole 523 is opened at the center of the lower bottom surface of the abrasive supply cylinder 52 for the upper end of the aforementioned feeding cylinder 511 to extend into the abrasive supply cylinder cavity 521. In this embodiment, the aforementioned feeding cylinder 51 is a hydraulic cylinder. However, a pneumatic cylinder can also be used, as described in the description of the pushing cylinder 41.

[0033] Please see Figure 3 And combined Figure 1 Since the structure of the aforementioned needle plate left feeding mechanism 7 is the same as that of the aforementioned needle plate right feeding mechanism 8, the applicant will only describe the needle plate right feeding mechanism 8 in detail below. The needle plate right feeding mechanism 8 includes a needle pressing plate device 81, a needle supporting plate device 82, an intermediate support 83, a power device 84, and a needle supporting plate roller 85. The needle pressing plate device 81 is fixed to the frame 1 at a position above the right side of the aforementioned needle plate grinding working chamber 16. The needle supporting plate device 82 is fixed to the frame 1 at a position below the right side of the aforementioned needle plate grinding working chamber 16, and is located below the needle pressing plate device 81. The intermediate support 83 is disposed between the needle pressing plate device 81 and the needle supporting plate device 82. The power device 84 is disposed below the intermediate support 83, and is located between the lower part of the needle pressing plate device 81 and the upper right side of the needle supporting plate device 82. The needle supporting plate roller 85 is located below the aforementioned needle pressing plate device 81 and slides vertically with the aforementioned intermediate support 83.

[0034] Please pay attention. Figure 3The aforementioned needle plate device 81 includes a needle plate roller actuating cylinder fixing frame 811, a needle plate roller actuating cylinder 812, a needle plate roller 813, and a needle plate roller pivot support frame 814. The left side plate 8111 of the needle plate roller actuating cylinder fixing frame 811 is preferably fixed to the aforementioned frame 1 by welding (but bolts can also be used) at the position above the right side corresponding to the needle plate grinding working chamber 16. The needle plate roller actuating cylinder 812 is fixed to the base plate 8112 of the needle plate roller actuating cylinder fixing frame 811 in a longitudinal cantilever state at the position below the needle plate roller actuating cylinder fixing frame 811. The needle plate roller actuating cylinder column 8121 of the needle plate roller actuating cylinder 812 faces downward and is fixed to the middle of the length direction of an actuating cylinder column lifting linkage plate 81211. The front and rear ends of 81211 are each longitudinally fixed with a linkage plate lifting guide column 81212. The linkage plate lifting guide column 81212 and the cylinder body of the pressure needle roller action cylinder 812 form a sliding pair that slides up and down. The top of the pressure needle roller pivot support frame 814 is in close contact with the downward-facing side of the action cylinder column lifting linkage plate 81211 and is fixed to the action cylinder column lifting linkage plate 81211 by the pressure needle roller pivot support frame fixing screw 8142. A pair of pressure needle roller shaft head support arms 8141 are fixed in a longitudinal cantilever state at the front and rear ends of the pressure needle roller pivot support frame 814. The pressure needle roller 813 is rotatably set in the middle of the pressure needle roller shaft 8131 at the position corresponding to the lower ends of the pair of pressure needle roller shaft head support arms 8141. The front shaft head and rear shaft head of the pressure needle roller shaft 8131 are supported on the pair of pressure needle roller shaft head support arms 8141.

[0035] In this embodiment, the aforementioned pressure needle roller action cylinder 812 is a hydraulic cylinder, but it can also be a pneumatic cylinder, as described above for the pusher action cylinder 41.

[0036] The aforementioned needle plate device 82 includes a needle plate actuating cylinder fixing frame 821 and a needle plate actuating cylinder 822. The left side plate 8211 of the needle plate actuating cylinder fixing frame 821 is welded and fixed to the aforementioned frame 1 or fixed with fasteners at a position corresponding to the lower right side of the aforementioned needle plate grinding working chamber 16. The needle plate actuating cylinder 822 is fixed to the needle plate actuating cylinder fixing frame 821 in a longitudinal cantilever state at a position corresponding to the lower side of the needle plate actuating cylinder fixing frame 821. The needle-supporting plate actuating cylinder column 8221 of component 2 extends upwards and vertically to the top of the needle-supporting plate actuating cylinder fixing frame 821, and is fixed at the middle of the length direction of the actuating cylinder column linkage plate 82211. A linkage plate guide rod 82212 is fixed longitudinally on the lower surface of the front and rear ends of the actuating cylinder column linkage plate 82211. The lower end of the linkage plate guide rod 82212 slides vertically to the bottom of the needle-supporting plate actuating cylinder fixing frame 821 and forms a sliding pair with the cylinder body of the needle-supporting plate actuating cylinder 822. In this embodiment, the aforementioned needle-supporting plate actuating cylinder 822 is a hydraulic cylinder, but a pneumatic cylinder can also be used, as described above for the needle-pressing plate roller actuating cylinder 812.

[0037] The aforementioned intermediate support 83 includes a front connecting plate 831 and a rear connecting plate 832. The front connecting plate 831 is fixed between the front end of the base plate 8112 of the needle plate roller cylinder fixing frame 811 and the front end of the needle support cylinder fixing frame 821 facing each other. A front roller seat sliding guide protrusion 8311 is formed in the height direction of the side of the front connecting plate 831 facing the rear connecting plate 832. A needle support roller head front clearance groove 8312 is opened at the lower end of the front connecting plate 831. Plate 832 is fixed between the rear end of the bottom plate 8112 of the aforementioned needle plate roller cylinder fixing frame 811 and the rear end of the needle support plate cylinder fixing frame 821 facing each other. A rear roller seat sliding guide protrusion 8321 is formed in the height direction of the rear connecting plate 832 of the fixing frame facing the front connecting plate 831 of the fixing frame and at the position corresponding to the front roller seat sliding guide protrusion 8311. A needle support plate roller shaft head rear clearance groove 8322 is opened at the lower end of the rear connecting plate 832 of the fixing frame and at the position corresponding to the front clearance groove 8312 of the needle support plate roller shaft head.

[0038] The aforementioned power unit 84 includes a motor 841, a reduction gearbox 842, a needle plate traveling drive roller 843, a roller shaft support mounting platform 844, a front roller shaft support 845, and a rear roller shaft support 846. The motor 841 is driven by the reduction gearbox 842, and the reduction gearbox 842, together with the motor 841, is fixed to the reduction gearbox fixing plate 8421 at a position corresponding to the lower front end of the aforementioned fixed frame front connecting plate 831. The reduction gearbox fixing plate 8421 and the front roller shaft... The support seat 845 is fixed, and the front roller shaft support seat 845 is fixed to the upward-facing side of the front end of the aforementioned roller shaft support seat mounting platform 844. At the same time, it forms a sliding pair with the aforementioned front roller seat sliding guide 8311 for up-and-down sliding. The needle plate moving drive roller 843 corresponds to the right side of the aforementioned needle support plate roller 85. The front end of the needle plate moving drive roller shaft 8431 of the needle plate moving drive roller 843 is rotatably supported on the front roller shaft support seat 845 by a bearing and passes through the aforementioned needle support plate roller shaft head. The front clearance groove 8312 extends to the front of the front roller shaft support 845 and is connected to the aforementioned reduction gearbox 842. The rear end of the needle plate moving drive roller shaft 8431 is rotatably supported on the rear roller shaft support 846 by a bearing, and extends to the rear of the rear roller shaft support 846 and enters the rear clearance groove 8322 of the aforementioned needle plate roller shaft head. The rear roller shaft support 846 and the aforementioned rear roller seat sliding guide protrusion 8321 form a sliding pair that slides up and down, and the rear roller shaft support 846 and the roller shaft... The rear end of the support mounting platform 844 is fixed to the upward-facing side, and the roller support mounting platform 844 is located above the aforementioned actuating cylinder linkage plate 82211 and is fixed to the actuating cylinder linkage plate 82211 by platform fixing screws 8443; the aforementioned needle plate roller 85 is located in the middle of the needle plate roller shaft (not shown in the figure), and the front end of the needle plate roller shaft is rotatably supported on the aforementioned front roller shaft support 845, while the rear end is rotatably supported on the rear roller shaft support 846.

[0039] On the aforementioned needle plate actuating cylinder fixing bracket 821, at the front and rear of the right end, there are roller shaft support mounting platform limiting stud holes 823. A limiting stud 8231 is fixed at the position corresponding to the roller shaft support mounting platform limiting stud hole 823 and locked by a limiting stud locking nut 82311 screwed onto the limiting stud 8231. The limiting stud 8231 controls the downward movement of the roller shaft support mounting platform 844 located above the aforementioned needle plate actuating cylinder fixing bracket 821. Limit position limitation; a needle plate guide roller shaft adjustment hole 8441 is provided on the aforementioned roller shaft support mounting platform 844, and at the front and rear of the right end. A needle plate guide roller 8442 is arranged longitudinally at the position corresponding to the needle plate guide roller shaft adjustment hole 8441. The lower end of the needle plate guide roller shaft 84421 of the needle plate guide roller 8442 passes downward through the needle plate guide roller shaft adjustment hole 8441 and is locked by a locking nut 84422 screwed on the needle plate guide roller shaft 84421.

[0040] Please see Figures 4 to 5 And combined Figure 1 and Figure 2 Since the structure of the aforementioned lower grinding mold 6 is the same as that of the aforementioned upper grinding mold 3, the applicant will only describe the upper grinding mold 3 in detail below. The upper grinding mold 3 includes an upper mold fixing frame 31 and an upper mold 32. An upper cylinder piston mating hole 311 is opened in the middle of the upper mold fixing frame 31. An actuating cylinder left connecting hole 312 is opened at the left end of the upper mold fixing frame 31, and an actuating cylinder right connecting hole 313 is opened at the right end of the upper mold fixing frame 31. The upper mold fixing frame 31 is fixed to the lower surface of the aforementioned receiving cylinder fixing flange seat 423 on the upward side and around the upper cylinder piston mating hole 311. The aforementioned pushing actuating cylinder piston 4112 corresponds to and mates with the upper cylinder piston mating hole 311. The lower end of the aforementioned upper grinding mold left lifting actuating cylinder 211 is fixed to the left end of the upper mold fixing frame 31 at the position corresponding to the actuating cylinder left connecting hole 312, and is locked by the upper grinding mold left lifting actuating cylinder end locking nut 2111. Figure 2 As shown in the diagram, the lower end of the right lifting cylinder 221 of the aforementioned upper grinding mold is fixed to the right end of the upper mold fixing frame 31 at the position corresponding to the right connecting hole 313 of the cylinder, and is locked by the locking nut 2211 at the end of the right lifting cylinder of the upper grinding mold. The upper mold 32 is fixed to the upper mold fixing frame 31 at the position below the upper mold fixing frame 31. On the upper mold 32, and at the position below the lower piston mating hole 311 of the upper cylinder, there is an upper cylinder lower piston mating hole interface 321 with a diameter equal to that of the upper cylinder lower piston mating hole 311. At the center of the upper mold 32, there is an upper mold material passage 322. Between the upper cylinder lower piston mating hole interface 321 and the upper mold material passage 322, there is a material flow slope 323 inclined towards the upper mold material passage 322. The area of ​​the material flow slope 323 constitutes the grinding material cavity 324 of the upper grinding mold.

[0041] Depend on Figure 4 As shown, upper mold fixing bracket 31 has upper mold fixing bracket screw holes 314 at its left end, right end and middle. Correspondingly, upper mold fixing screw holes 325 are provided on the upper mold 32 at the positions corresponding to the upper mold fixing bracket screw holes 314. The upper mold fixing bracket 31 and the upper mold 32 are fixed by upper mold fixing screws (not shown) at the positions corresponding to the upper mold fixing bracket screw holes 314 and the upper mold fixing screw holes 325.

[0042] The abrasive 20 mentioned above ( Figure 2 (Examples include) materials such as silicon carbide, alumina, boron carbide, diamond powder, or other similar materials.

[0043] Please see Figure 6 ,Depend on Figure 6 As shown, to prevent the needle plate 9 from sagging downwards at both ends during the grinding process of this utility model, that is, to prevent the needle plate 9 from deflecting and to ensure that it is in a good horizontal state, a needle plate support 10 is provided on each of the left and right sides of the corresponding frame 1. A needle plate guide roller 101, in any number not shown, is rotatably mounted on the top of each needle plate support 10. Furthermore, each side of the needle plate 9 is limited by a pair of needle plate guide rollers on the left side, which have the same structure and function as the pair of needle plate guide rollers 8442 on the right side, to prevent the needle plate 9 from becoming misaligned.

[0044] Applicant combined Figures 1 to 6 The working principle of this utility model is described below. The needle plate 9 shown in this utility model rhythmically moves from left to right within the length range of the upper and lower grinding molds 3 and 6. That is, during the grinding process, the needle plate 9 is stationary. After a grinding time set by the process, such as by an electrical controller, ends, the needle plate 9 moves to the right within the aforementioned length range of the upper and lower grinding molds 3 and 6. This means that the area of ​​the needle plate 9 that has completed grinding moves to the right away from the mold, and the next needle plate to be ground enters the mold.

[0045] During the grinding process, the needle plate 9 is clamped by the coordinated action of the aforementioned needle-pressing roller 813 and needle-supporting roller 85. Conversely, when the needle-pressing roller 813 and needle-supporting roller 85 repel each other and move in opposite directions, the needle plate 9 can be fed to the right by one pitch under the action of the power device 84. Specifically: Since the structure and working principle of the left and right needle plate feeding mechanisms 7 and 8 are the same, and they work synchronously, the applicant will only describe the right needle plate feeding mechanism 8. The needle plate roller actuating cylinder 812 operates, causing the needle plate roller actuating cylinder column 8121 to move downwards, extending outwards from the cylinder body. This drives the actuating cylinder column lifting linkage plate 81211 to move downwards. The actuating cylinder column lifting linkage plate 81211 then drives the needle plate roller pivot support frame 814, along with the needle plate roller 813, downwards, so that the needle plate roller 813 presses against the upper surface of the needle plate 9. During the aforementioned process, the needle support plate actuating cylinder 822 operates simultaneously, causing the needle support plate actuating cylinder column 8221 to extend upwards, extending outwards from the cylinder body. The needle support plate actuating cylinder column 8221 pushes the actuating cylinder column linkage plate 82211 upwards, which in turn drives the roller shaft support seat mounting platform 844 upwards accordingly. Specifically, the front and rear roller bearings 845 and 846 on the roller bearing mounting platform 844 slide upward along the sliding guide protrusions 8311 and 8321 of the front and rear roller bearings, respectively, thereby causing the needle plate roller 85 and the needle plate traveling drive roller 843 to move upward, and the needle plate roller 85 pushes against the lower surface of the needle plate 9. This ensures that the needle plate 9 is in a fixed position without abnormal movement. In this state, the upper and lower grinding molds 3 and 6, which will be described in detail below, grind the needle plate. After grinding, the aforementioned needle plate roller actuating cylinder 812 and needle plate actuating cylinder 822 both move in the opposite direction. At this time, the needle plate roller 813 and the needle plate roller 85 leave the upper and lower surfaces of the needle plate 9, respectively. Next, the motor 841 (such as a stepper motor or servo motor) of the power unit 84 system operates, driving the reduction gearbox 842, which in turn drives the needle plate moving drive roller shaft 8431. The needle plate moving drive roller shaft 8431 then drives the needle plate moving drive roller 843, whose rotation causes the needle plate 9 to move to the right by the required grinding area. Afterward, the motor 841 stops operating, and the needle plate 9 stops moving to the right. Simultaneously, the aforementioned needle pressure roller cylinder 812 and needle support roller cylinder 822 operate, clamping the needle plate 9 in the same manner as described above, thus initiating the deburring grinding process.

[0046] As can be seen from the applicant's explanation above, the lifting and lowering of the entire upper abrasive receiving and discharging mechanism 4 is determined by the upper abrasive mold lifting mechanism 2. Therefore, it is assumed that the upper abrasive receiving and discharging mechanism 4 is in a position determined by... Figure 2 As shown in the descending state, the lower surface of the upper mold 32 of the upper grinding mold 3 structure system at this time is connected to the surface of the upper mold 32. Figure 2The upper surface of the needle plate 9 is in close contact with the needle plate 9, which is clamped by the needle pressure plate roller 813 and the needle support plate roller 85. In this state, the feeding cylinder 51 of the abrasive material feeding and discharging mechanism 5 operates. The upward movement of the feeding cylinder column 511 drives the piston 5112 on the feeding cylinder column to move upward. The piston 5112 on the feeding cylinder column pushes the abrasive material 20, which was previously introduced into the abrasive material feeding cylinder cavity 521 of the abrasive material feeding cylinder 52 by manual means and with the aid of adaptive tools such as feed tubes or small shovels, upward. At this time, the abrasive material 20 enters the lower grinding mold abrasive cavity 621, the needle hole 91 of the needle plate 9, the upper grinding mold abrasive cavity 324, and the receiving cylinder cavity 421 of the receiving cylinder 42 (located in the area below the lower piston 4112 of the feeding cylinder column) of the lower grinding mold 6 system and fixed to the upper side (i.e., upper surface) of the lower mold fixing frame 61 from bottom to top under the push of the piston 5112 on the feeding cylinder column. The aforementioned lower die fixing frame 61 is fixed to the aforementioned lower chamber partition 12 of the frame by lower die fixing frame screws 611. During the above process, in order to ensure that more or sufficient abrasive material 20 enters the receiving cylinder cavity 421, that is, to allow as much abrasive material 20 as possible to grind the needle holes 91, the pushing cylinder 41 of the upper abrasive material receiving and discharging mechanism 4 operates. The pushing cylinder column 411, together with the lower piston 4112 of the pushing cylinder column, moves upward, thereby allowing as much abrasive material as possible to pass through the needle holes 91 and enter the receiving cylinder cavity 421 via the upper grinding die abrasive material cavity 324. Then, the aforementioned pushing cylinder 41 operates in reverse, with the pushing cylinder column 411 and the lower piston 4112 moving downward, and the lower piston 4112 pushing the abrasive material 20 previously entering the receiving cylinder cavity 421 upward into the upper grinding die abrasive material cavity 324. Since the feeding cylinder 51 is in a reverse working state at this time, that is, the feeding cylinder column 511 drives the upper piston 5112 of the feeding cylinder column to move downward, during the downward pushing process of the lower piston 4112 of the pushing cylinder column, the abrasive material 20 from the receiving cylinder cavity 421 (the abrasive material 20 located in the area below the lower piston 4112 of the pushing cylinder column) passes sequentially through the abrasive material cavity 324 of the upper grinding mold, the needle hole 91 of the needle plate 9, and the abrasive material cavity 621 of the lower grinding mold and returns to the abrasive material supply cylinder cavity 521. The above completes one grinding process (also called "one grinding round") of the abrasive material 20 on the needle plate 9. As long as the abrasive material 20 is repeatedly rotated up and down according to the requirements set by the process, the grinding of the needle hole 91 on the needle plate 9 in the area corresponding to the upper and lower grinding molds 3 and 6 is completed. Then, the left and right lifting cylinders 21 and 22 of the upper grinding mold lifting mechanism 2 work in opposite directions. The upward movement of the left and right lifting cylinder columns 211 and 221 of the upper grinding mold drives the upper grinding mold 3 and the entire upper grinding material receiving and discharging mechanism 4 to move upward, so that the upper grinding mold 3 leaves the upper surface of the needle plate 9.Meanwhile, as described above by the applicant regarding the left and right feeding mechanisms 7 and 8 of the needle plate, the needle plate 9, which is to be ground and polished, is fed to the right one station by the coordinated action of these mechanisms. After being fed to one station, the needle plate 9 is clamped by the coordinated action of the pressure plate roller 813 and the support plate roller 85. At the same time, the upper grinding mold lifting mechanism 2 reverses its operation, causing the upper grinding mold 3 to be in contact with the upper surface of the needle plate 9 again, thus beginning the grinding of the needle holes 91 in the next area of ​​the needle plate 9.

[0047] In summary, the technical solution provided by this utility model makes up for the shortcomings of the prior art, successfully completes the invention task, and faithfully realizes the technical effects described by the applicant in the above technical effect column.

Claims

1. An automatic grinding and deburring device for the needle plate of a needle punching machine, characterized in that: The system includes a frame (1), which is installed directly or indirectly on the floor of the automatic needle grinding workshop during use. An upper chamber partition (11) and a lower chamber partition (12) are formed within the frame (1) and at its midpoint in the height direction. The space between the upper chamber partition (11) and the opposite side of the top cover plate (13) of the frame (1) forms the upper chamber (14), and the lower part of the lower chamber partition (12) forms the lower chamber (15). The space between the opposing sides of (11, 12) forms a needle plate grinding working cavity (16), and the left and right sides of the needle plate grinding working cavity (16) and corresponding positions form side openings (161) of the frame grinding working cavity; an upper grinding mold lifting mechanism (2) and an upper grinding mold (3) are provided, the upper grinding mold (3) is disposed vertically in the needle plate grinding working cavity (16), and the upper grinding mold lifting mechanism (2) is disposed in the upper chamber (14) of the frame and extends to the needle plate grinding working cavity through the upper chamber partition (11). 16) Connected to the upper grinding mold (3); an upper grinding material receiving and discharging mechanism (4), the upper part of which is located in the upper chamber (14) of the frame, and the lower part is located in the needle plate grinding working chamber (16) and connected to the upper grinding mold (3); an grinding material holding and discharging mechanism (5) and a lower grinding mold (6), the lower grinding mold (6) is set in the needle plate grinding working chamber (16) at a position corresponding to the lower position of the upper grinding mold (3) and is fixed to the partition plate (12) of the lower chamber of the frame, grinding The abrasive feeding and discharging mechanism (5) is located in the lower chamber (15) of the frame and is connected to the lower grinding mold (6); a needle plate left feeding mechanism (7) and a needle plate right feeding mechanism (8) are provided on the left side of the frame (1) at the position of the side opening (161) of the frame grinding working chamber corresponding to the left side of the needle plate grinding working chamber (16), while the needle plate right feeding mechanism (8) is provided on the right side of the frame grinding working chamber corresponding to the position of the side opening (161) of the frame grinding working chamber corresponding to the right side of the needle plate grinding working chamber (16).

2. The automatic grinding and deburring device for the needle plate of the acupuncture machine according to claim 1, characterized in that: A pusher cylinder clearance hole (111) is provided on the upper chamber partition (11) of the frame and located in the middle. A left lifting cylinder clearance hole (112) for the upper grinding mold is provided on the left side of the pusher cylinder clearance hole (111), and a right lifting cylinder clearance hole (113) for the upper grinding mold is provided on the right side of the pusher cylinder clearance hole (111). A lower grinding cylinder clearance cavity (121) corresponding to the pusher cylinder clearance hole (111) is provided in the center of the lower chamber partition (12) of the frame. The upper grinding mold lifting mechanism (2) in the upper chamber (14) extends downward into the needle plate grinding working chamber (16) at the position corresponding to the left lifting cylinder relief hole (112) and the right lifting cylinder relief hole (113) of the upper grinding mold and connects to both ends of the upper grinding mold (3); the upper grinding material receiving and discharging mechanism (4) in the upper chamber (14) of the frame extends downward into the needle plate grinding working chamber (16) at the position corresponding to the pushing cylinder relief hole (111) and connects to the middle of the upper grinding mold (3); The abrasive material feeding and discharging mechanism (5) located in the lower chamber (15) of the frame is connected to the middle of the lower abrasive cylinder (6) at a position corresponding to the lower abrasive cylinder clearance cavity (121); the needle plate left feeding mechanism (7) located on the left side of the frame (1) and the needle plate right feeding mechanism (8) located on the right side of the frame (1) are aligned in the vertical direction of the frame (1).

3. The automatic grinding and deburring device for the needle plate of the acupuncture machine according to claim 2, characterized in that: The upper grinding mold lifting mechanism (2) includes a left upper grinding mold lifting cylinder (21) and a right upper grinding mold lifting cylinder (22). The left upper grinding mold lifting cylinder (21) is located in the upper chamber (14) of the frame and is fixed longitudinally to the side of the upper chamber partition (11) facing upward, corresponding to the position of the left upper grinding mold lifting cylinder column clearance hole (112). The left upper grinding mold lifting cylinder column (211) of the left upper grinding mold lifting cylinder (21) faces downward and extends through the left upper grinding mold lifting cylinder column clearance hole (112) into the needle plate grinding working chamber (16) and connects to the left end of the upper grinding mold (3). The right upper grinding mold lifting cylinder (22) is located in the upper chamber (14) of the frame. The upper grinding mold (3) is fixed in a longitudinal state to the side of the upper chamber partition (11) facing upward, corresponding to the position of the right lifting cylinder column clearance hole (113) of the upper grinding mold. The upper grinding mold right lifting cylinder column (221) of the upper grinding mold right lifting cylinder (22) faces downward and extends through the clearance hole (113) of the upper grinding mold right lifting cylinder column into the needle plate grinding working chamber (16) and connects to the right end of the upper grinding mold (3). The upper grinding mold (3) and the upper grinding material receiving and discharging mechanism (4) are moved away from the lower grinding mold (6) or towards the lower grinding mold (6) by the rise or fall of the upper grinding mold left lifting cylinder column (211) and the upper grinding mold right lifting cylinder column (221).

4. The automatic grinding and deburring device for the needle plate of the acupuncture machine according to claim 3, characterized in that: The upper grinding mold left lifting cylinder (21) and the upper grinding mold right lifting cylinder (22) are hydraulic cylinders.

5. The automatic grinding and deburring device for the needle plate of the acupuncture machine according to claim 3, characterized in that: The upper abrasive receiving and discharging mechanism (4) includes a pushing cylinder (41) and a receiving cylinder (42). The pushing cylinder (41) is disposed vertically in the upper chamber (14) of the frame in a longitudinal state, and the lower end of the pushing cylinder (41) corresponds to the pushing cylinder clearance hole (111). A pushing cylinder upper piston (4111) is fixed at the upper end of the pushing cylinder column (411) of the pushing cylinder (411). The pushing cylinder upper piston (4111) is located in the pushing cylinder cavity (412) of the pushing cylinder (41). The lower end of the pushing cylinder column (411) extends from the top surface of the upper end of the receiving cylinder (42) into the receiving cylinder cavity (421) of the receiving cylinder (42). A pushing cylinder lower piston (411) is fixed at the lower end of the pushing cylinder column (411). 4112), the outer edge of the piston (4112) of the pusher cylinder forms a sealing sliding pair with the cavity wall of the receiving cylinder cavity (421). The receiving cylinder (42) is located in the needle plate grinding working cavity (16). The upper end of the receiving cylinder (42) corresponds to the pusher cylinder relief hole (111) and the upper top surface of the receiving cylinder (42) is fixed to the lower end face of the pusher cylinder (41). A pusher cylinder relief hole (422) is opened at the center of the upper top surface of the receiving cylinder (42) for the lower end of the pusher cylinder (411) to extend into the receiving cylinder cavity (421). A receiving cylinder fixing flange seat (423) is formed on the lower outer wall of the receiving cylinder (42). The receiving cylinder fixing flange seat (423) is fixed to the upper grinding mold (3). The pusher cylinder (41) is a hydraulic cylinder.

6. The automatic grinding and deburring device for the needle plate of the acupuncture machine according to claim 2, characterized in that: The abrasive feeding and discharging mechanism (5) includes a feeding cylinder (51) and an abrasive supply cylinder (52). The feeding cylinder (51) and the abrasive supply cylinder (52) are located in the lower chamber (15) of the frame. The feeding cylinder (51) is fixed to the lower end of the abrasive supply cylinder (52) in a longitudinal cantilever state. A lower piston (5111) of the feeding cylinder (51) is fixed to the lower end of the feeding cylinder column (511). The lower piston (5111) of the feeding cylinder column is located in the feeding cylinder cavity (512) of the feeding cylinder (51). The upper end of the feeding cylinder column (511) extends into the abrasive supply cylinder cavity (521) of the abrasive supply cylinder (52). A piston (5112) for feeding action cylinder is fixed at the upper end of the cylinder. The piston (5112) for feeding action cylinder forms a sealing sliding pair with the cavity wall of the abrasive supply cylinder cavity (521). An abrasive supply cylinder fixing flange seat (522) is formed on the upper outer wall of the abrasive supply cylinder (52) and around it. The abrasive supply cylinder fixing flange seat (522) is detachably fixed to the lower grinding mold (6). A feeding action cylinder relief hole (523) is opened at the center of the bottom surface of the lower end of the abrasive supply cylinder (52) for the upper end of the feeding action cylinder (511) to extend into the abrasive supply cylinder cavity (521). The feeding action cylinder (51) is a hydraulic cylinder.

7. The automatic grinding and deburring device for the needle plate of the acupuncture machine according to claim 2, characterized in that: The structure of the left needle plate feeding mechanism (7) is the same as that of the right needle plate feeding mechanism (8). The right needle plate feeding mechanism (8) includes a needle pressing plate device (81), a needle supporting plate device (82), an intermediate support (83), a power unit (84), and a needle supporting plate roller (85). The needle pressing plate device (81) is fixed to the frame (1) at a position above the right side of the needle plate grinding working chamber (16), and the needle supporting plate device (82) is located below the right side of the needle plate grinding working chamber (16). The position of the square is fixed to the frame (1) and corresponds to the lower part of the needle press plate device (81). The intermediate support (83) is set between the needle press plate device (81) and the needle support plate device (82). The power device (84) is set below the intermediate support (83) and corresponds to the lower part of the needle press plate device (81) and the upper right side of the needle support plate device (82). The needle support plate roller (85) corresponds to the lower part of the needle press plate device (81) and slides up and down with the intermediate support (83).

8. The automatic grinding and deburring device for the needle plate of the acupuncture machine according to claim 7, characterized in that: The needle plate device (81) includes a needle plate roller cylinder fixing frame (811), a needle plate roller cylinder (812), a needle plate roller (813), and a needle plate roller pivot support frame (814). The left side plate (8111) of the needle plate roller cylinder fixing frame (811) is fixed to the frame (1) at a position above the right side corresponding to the needle plate grinding working chamber (16). The needle plate roller cylinder (812) is fixed to the bottom plate (8112) of the needle plate roller cylinder fixing frame (811) in a longitudinal cantilever state at a position below the needle plate roller cylinder fixing frame (811). The pressure of the needle plate roller cylinder (812) is... The needle plate roller actuating cylinder column (8121) faces downward and is fixed at the middle of the length direction of an actuating cylinder column lifting linkage plate (81211). A linkage plate lifting guide column (81212) is longitudinally fixed at both the front and rear ends of the actuating cylinder column lifting linkage plate (81211). The linkage plate lifting guide column (81212) and the cylinder body of the needle plate roller actuating cylinder (812) form a sliding pair that slides up and down. The top of the needle plate roller pivot support frame (814) is tightly fixed to the downward-facing side of the actuating cylinder column lifting linkage plate (81211). A pair of needle plate roller shaft head support arms (8141) are longitudinally cantilevered at the front and rear ends of the needle plate roller pivot support frame (814). 813) The needle plate roller shaft (8131) is rotatably disposed in the middle of the needle plate roller shaft (8131) at a position corresponding to the lower ends of a pair of needle plate roller shaft head support arms (8141), and the front and rear shaft heads of the needle plate roller shaft (8131) are supported on a pair of needle plate roller shaft head support arms (8141); the needle plate support device (82) includes a needle plate support cylinder fixing frame (821) and a needle plate support cylinder (822), the left side plate (8211) of the needle plate support cylinder fixing frame (821) is fixed to the frame (1) at a position corresponding to the lower right side of the needle plate grinding working chamber (16), and the needle plate support cylinder (822) is located at a position corresponding to the needle plate support cylinder fixing frame. The lower part of (821) is fixed to the needle plate action cylinder fixing frame (821) in a longitudinal cantilever state. The needle plate action cylinder column (8221) of the needle plate action cylinder (822) extends upward and moves up and down to the upper part of the needle plate action cylinder fixing frame (821) and is fixed to the middle part of the action cylinder column linkage plate (82211) in the length direction. A linkage plate guide rod (82212) is fixed in a longitudinal state on the lower surface of the front end and rear end of the action cylinder column linkage plate (82211). The lower end of the linkage plate guide rod (82212) slides up and down to the lower part of the needle plate action cylinder fixing frame (821) and forms a sliding pair with the cylinder body of the needle plate action cylinder (822).The intermediate support (83) includes a front connecting plate (831) and a rear connecting plate (832). The front connecting plate (831) is fixed between the front end of the bottom plate (8112) of the needle plate roller cylinder fixing frame (811) and the front end of the needle support cylinder fixing frame (821). A front roller seat sliding guide protrusion (8311) is formed on the side of the front connecting plate (831) facing the rear connecting plate (832). A needle support roller shaft head front clearance groove (8312) is opened at the lower end of the front connecting plate (831). The connecting plate (832) is fixed between the rear end of the bottom plate (8112) of the pressing needle plate cylinder fixing frame (811) and the rear end of the supporting needle plate cylinder fixing frame (821) facing each other. A rear roller seat sliding guide protrusion (8321) is formed on the side of the rear connecting plate (832) facing the front connecting plate (831) of the fixing frame and at the position corresponding to the front roller seat sliding guide protrusion (8311). A supporting needle plate roller head rear clearance groove (8322) is opened at the lower end of the rear connecting plate (832) of the fixing frame and at the position corresponding to the front clearance groove (8312) of the supporting needle plate roller head.The power unit (84) includes a motor (841), a gearbox (842), a needle plate traveling drive roller (843), a roller shaft support mounting platform (844), a front roller shaft support (845), and a rear roller shaft support (846). The motor (841) is driven by the gearbox (842), and the gearbox (842), together with the motor (841), is fixed on the gearbox fixing plate (8421) at a position corresponding to the lower front side of the front connecting plate (831) of the fixed frame. The fixed plate (8421) is fixed to the front roller shaft support (845), which is fixed to the front end of the roller shaft support mounting platform (844) facing upward, and simultaneously forms a sliding pair with the sliding guide rib (8311) of the front roller seat for vertical sliding. The needle plate moving drive roller (843) corresponds to the right side of the needle plate support roller (85), and the front end of the needle plate moving drive roller shaft (8431) of the needle plate moving drive roller (843) is rotatably supported on the front roller shaft support (844) by a bearing. 5) The needle plate moving drive roller (8431) extends from the front clearance groove (8312) of the needle plate roller head to the front of the front roller shaft support (845) and is connected to the gearbox (842) for transmission. The rear end of the needle plate moving drive roller (8431) is rotatably supported on the rear roller shaft support (846) by a bearing, and extends to the rear of the rear roller shaft support (846) and enters the rear clearance groove (8322) of the needle plate roller head. The rear roller shaft support (846) and the sliding guide rib (8321) of the rear roller seat form an up-and-down sliding mechanism. The sliding pair is provided, and the rear roller shaft support (846) is fixed to the rear end of the roller shaft support mounting platform (844) facing upward, while the roller shaft support mounting platform (844) is fixed above the actuating cylinder column linkage plate (82211); the needle plate roller (85) is disposed in the middle of the needle plate roller shaft, and the front end of the needle plate roller shaft is rotatably supported on the front roller shaft support (845), while the rear end is rotatably supported on the rear roller shaft support (846).

9. The automatic grinding and deburring device for the needle plate of the acupuncture machine according to claim 8, characterized in that: On the needle plate actuating cylinder fixing bracket (821), at the front and rear of the right end, there are roller bearing seat mounting platform limiting stud holes (823). A limiting stud (8231) is fixed at the position corresponding to the roller bearing seat mounting platform limiting stud hole (823) and locked by a limiting stud locking nut (82311) screwed onto the limiting stud (8231). The limiting stud (8231) controls the downward movement of the roller bearing seat mounting platform (844) located above the needle plate actuating cylinder fixing bracket (821). Limit position limitation; a needle plate guide roller shaft adjustment hole (8441) is provided on the roller shaft support mounting platform (844) and at the front and rear of the right end. A needle plate guide roller (8442) is arranged longitudinally at the position corresponding to the needle plate guide roller shaft adjustment hole (8441). The lower end of the needle plate guide roller shaft (84421) of the needle plate guide roller (8442) passes downward through the needle plate guide roller shaft adjustment hole (8441) and is locked by a locking nut (84422) screwed on the needle plate guide roller shaft (84421).

10. The automatic grinding and deburring device for the needle plate of the acupuncture machine according to claim 5, characterized in that: The structure of the lower grinding mold (6) is the same as that of the upper grinding mold (3). The upper grinding mold (3) includes an upper mold fixing frame (31) and an upper mold (32). An upper cylinder piston mating hole (311) is opened in the middle of the upper mold fixing frame (31). An actuating cylinder left connecting hole (312) is opened at the left end of the upper mold fixing frame (31), and an actuating cylinder right connecting hole (313) is opened at the right end of the upper mold fixing frame (31). The upper mold fixing frame (31) is fixed to the lower surface of the receiving cylinder fixing flange seat (423) on the upward side and around the upper cylinder piston mating hole (311). The pushing actuating cylinder piston (4112) corresponds to and mates with the upper cylinder piston mating hole (311). The lower end of the upper grinding mold left lifting actuating cylinder (211) is positioned corresponding to the actuating cylinder left connecting hole (312) and is connected to the upper mold. The left end of the fixing frame (31) is fixed, and the lower end of the right lifting cylinder column (221) of the upper grinding mold is fixed to the right end of the upper mold fixing frame (31) at the position corresponding to the right connecting hole (313) of the cylinder column. The upper mold (32) is fixed to the upper mold fixing frame (31) at the position below the upper mold fixing frame (31). On the upper mold (32) and at the position corresponding to the lower piston mating hole (311) of the upper cylinder column, there is an upper cylinder column lower piston mating hole interface (321) with a diameter equal to that of the upper cylinder column lower piston mating hole (311). At the center of the upper mold (32), there is an upper mold material passage (322). Between the upper cylinder column lower piston mating hole interface (321) and the upper mold material passage (322), there is a material flow slope (323) that is inclined towards the upper mold material passage (322). The area of ​​the material flow slope (323) constitutes the grinding material cavity (324) of the upper grinding mold.

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