A multi-head terminal test and braiding all-in-one machine

Abstract

This utility model relates to the field of testing and taping machine technology, specifically a multi-head terminal testing and taping integrated machine, including an integrated machine body. A display screen is mounted on the top surface of the integrated machine body, a control box is mounted on the top surface of the integrated machine body, a controller is installed inside the integrated machine body, and convenient loading and unloading mechanisms are provided on the operating table and the surface of the receiving frame. An automatic feeding mechanism is provided inside the material feeding rack and on the surface of the calibration feeding rack. This utility model not only enables the integrated machine to automatically feed materials through the calibration feeding rack, increasing the automation level during use, but also allows users to easily remove the receiving frames from the operating table surface to classify and process defective products inside the frames, making the integrated machine more convenient to operate.

Description

Technical Field

[0001] This utility model relates to the field of testing and taping machine technology, specifically a multi-head terminal testing and taping integrated machine. Background Technology

[0002] In recent years, China's electronics industry has continued to grow rapidly, driving the strong development of the semiconductor electronic components industry. This has led to a demand for higher efficiency, higher quality, and lower cost in the production, packaging, and assembly of semiconductor electronic components. After the semiconductor electronic components are produced, they need to be tested, packaged, and arranged by various types of packaging machines such as tape and reel machines and chip sorting machines to facilitate the next step of installation or testing. This requires the use of a multi-head terminal testing tape and reel integrated machine.

[0003] Existing integrated testing and reeling machines for semiconductor electronic components use a rotary mechanism to reciprocate the feeding and unloading motion of materials onto the test module during electrical testing. This method results in a low overall operating speed and insufficient calibration and feeding efficiency, significantly reducing the automation level of the machine. Furthermore, the current machines are inconvenient for loading and unloading trays, making it difficult for users to remove trays from the worktable and sort out defective products. This makes the machines inconvenient to operate. Utility Model Content

[0004] The purpose of this utility model is to provide a multi-head terminal testing tape and reel integrated machine to solve the problems mentioned in the background art, such as insufficient calibration and feeding efficiency and inconvenience in picking up and placing the holding frame.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-head terminal testing tape and reel integrated machine, comprising an integrated machine body, a display screen mounted on the top surface of the integrated machine body, a control box mounted on the top surface of the integrated machine body, a controller mounted inside the integrated machine body, an operating table mounted inside the integrated machine body, a support frame mounted on the inner wall of the integrated machine body, a fixing plate mounted on the top surface of the support frame, a feeding module mounted inside the integrated machine body, a holding frame for classifying and collecting defective products placed on the surface of the operating table, a conveying rack mounted on the surface of the feeding module, a correction feeding rack for feeding the conveying rack, convenient picking and placing mechanisms provided on the surfaces of the operating table and the holding frames, and an automatic feeding mechanism provided inside the conveying rack and on the surface of the correction feeding rack.

[0006] Preferably, each surface of the integrated machine body is provided with a door, which rotates with the surface of the integrated machine body. A placement seat is installed on the surface at the top of the operating table. Each surface of the integrated machine body is provided with a holding plate, which slides with the inner wall of the integrated machine body. A calibration feeding rack is installed on the surface at the top of the integrated machine body. The feeding module consists of a feeding platform, a vibrating feeder, and a moving component. A vibrating feeder is installed inside the integrated machine body, which slides with the inner wall of the integrated machine body. A moving component is installed on the inner wall of the integrated machine body, and the moving component is fixed to the surface at the center of the bottom of the vibrating feeder. A feeding platform is installed on the surface of the vibrating feeder. An automatic detection system is installed inside the integrated machine body. The automatic detection module consists of a turntable, an appearance detection head, a support platform, an insulation detection head, and a lifting module. The support platform is installed inside the integrated machine body, and a turntable is mounted on its surface. The turntable and the support platform rotate in relation to each other. A lifting module is mounted on the top surface of the turntable, and an insulation detection head is mounted on its surface. Appearance detection heads are mounted on the surfaces of all lifting modules. A re-detection module is installed on the inner wall of the integrated machine body. Marking and conveying modules are mounted on the surfaces of all fixed frames, and these modules slide in relation to the fixed frames. A flip-feed module is mounted on the surface of the fixed frames. A photographic detection module is installed inside the integrated machine body, located above the automatic detection module.

[0007] Preferably, the convenient pick-and-place mechanism consists of fastening bolts, clamping plates, fixing plates, and positioning blocks. A positioning block is installed on the surface at the bottom of the holding frame, and the positioning block engages with the surface of the operating table. Fixing plates are installed on both sides of the operating table.

[0008] Preferably, the surface of the fixing plate is threaded with a fastening bolt, one end of which penetrates the fixing plate and extends to the inner side of the fixing plate. A clamping plate is provided on the inner side of the fixing plate. The clamping plate and the surface of the fastening bolt rotate and engage with each other. The inner wall of the clamping plate is in contact with the surface of the holding frame.

[0009] Preferably, the automatic feeding mechanism consists of a servo motor, a rotating shaft, a lead screw body, a guide groove, a holding groove, and a lead screw nut. The feeding rack has a holding groove inside, and the lead screw body is installed inside the holding groove. The lead screw body rotates with the inner wall of the holding groove through a bearing. The lead screw nut is threaded onto the surface of the lead screw body. The inner wall of the feeding rack has a guide groove, and the guide groove slides with the surface of the lead screw nut. The surface of the lead screw nut is fixed to the surface of the feeding rack.

[0010] Preferably, a servo motor is mounted on the surface of the feeding rack. The input end of the servo motor is electrically connected to the output end of the controller. A rotating shaft is mounted on the output end of the servo motor via a coupling. One end of the rotating shaft extends into the interior of the holding slot and is fixed to the surface of the lead screw body. The rotating shaft rotates in conjunction with the inner wall of the feeding rack via a bearing.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the multi-head terminal testing tape and reel integrated machine not only enables the integrated machine to automatically feed materials by calibrating the feeding rack, making the integrated machine more automated, but also makes it convenient for users to remove the holding frames from the surface of the operating table and classify the defective products inside the holding frames, making the integrated machine more convenient for users to operate.

[0012] 1. With an automatic feeding mechanism, when the material moves to the bottom of the calibration feeding rack, the controller controls the servo motor to work. Under the action of the servo motor, the rotating shaft rotates on the inner wall of the conveying rack. When the rotating shaft rotates, it drives the lead screw body to rotate inside the holding slot. Under the threaded engagement between the holding slot and the lead screw nut, the lead screw nut moves inside the holding slot. At this time, the lead screw nut slides inside the guide slot, and is guided by the guide slot. When the lead screw nut moves, it drives the calibration feeding rack to move on the surface of the conveying rack. Under the action of the calibration feeding rack, the material is fed onto the surface of the turntable, realizing the continuous feeding function of the integrated machine. This allows the integrated machine to automatically feed materials through the calibration feeding rack, making the automation level of the integrated machine higher.

[0013] 2. By incorporating a convenient loading and unloading mechanism, once the container is full of defective products, it needs to be removed from the operating table surface for centralized processing. The user loosens the fastening bolts on the fixing plate, causing the bolts to move the clamping plate away from the container surface. The user then pulls the container upwards, causing it to move the positioning block away from the operating table surface, thus removing the container from the operating table surface. The defective products inside are then processed separately. This feature enables the all-in-one machine to conveniently load and unload containers, making it easier for users to remove containers from the operating table surface and classify the defective products inside. This makes the all-in-one machine more user-friendly. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0016] Figure 3 This is a side sectional view of the present invention.

[0017] Figure 4 For the present utility model Figure 2 An enlarged schematic diagram of the convenient pick-and-place mechanism;

[0018] Figure 5 For the present utility model Figure 2 Enlarged schematic diagram of the automatic feeding mechanism.

[0019] In the diagram: 1. Integrated machine body; 101. Door; 102. Display screen; 103. Control box; 104. Operating table; 105. Placement seat; 106. Marking and conveying module; 107. Re-inspection module; 108. Fixed frame plate; 109. Support frame; 110. Tilting feeding module; 111. Controller; 112. Automatic inspection module; 1121. Turntable; 1122. Appearance inspection head; 1123. Support platform; 1124. Insulation inspection head; 1125. Lifting module; 113. 1. Holding plate; 114. Imaging and detection module; 115. Feeding module; 1151. Feeding platform; 1152. Vibrating feeder; 1153. Moving component; 116. Holding frame; 117. Conveying rack; 118. Correcting feeding rack; 2. Convenient picking and placing mechanism; 21. Fastening bolt; 22. Clamping plate; 23. Fixing plate; 24. Positioning block; 3. Automatic feeding mechanism; 31. Servo motor; 32. Rotating shaft; 33. Lead screw body; 34. Guide groove; 35. Holding groove; 36. Lead screw nut. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. In addition, the terms "first", "second", "third", "upper", "lower", "left", "right", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance. At the same time, in the description of the present utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0021] The structure of the multi-head terminal testing and tape-and-reel integrated machine provided by this utility model is as follows: Figure 1 , Figure 2 and Figure 3 As shown, the device includes an all-in-one machine body 1. Each surface of the all-in-one machine body 1 has a door 101, which rotates and engages with the surface of the all-in-one machine body 1. A display screen 102 is mounted on the top surface of the all-in-one machine body 1. A control box 103 is mounted on the top surface of the all-in-one machine body 1. A controller 111 is installed inside the all-in-one machine body 1. An operating table 104 is installed inside the all-in-one machine body 1. A placement seat 105 is mounted on the top surface of the operating table 104. A support frame 109 is mounted on the inner wall of the all-in-one machine body 1. A fixing plate is mounted on the top surface of the support frame 109. 108. Each surface of the integrated machine body 1 is provided with a holding plate 113, which slides against the inner wall of the integrated machine body 1. A calibration feeding rack 118 is installed on the surface at the top of the integrated machine body 1. A feeding module 115 is installed inside the integrated machine body 1. The feeding module 115 consists of a feeding platform 1151, a vibrating feeder 1152, and a moving component 1153. The vibrating feeder 1152 is installed inside the integrated machine body 1, and slides against the inner wall of the integrated machine body 1. The moving component 1153 is installed on the inner wall of the integrated machine body 1. 153 is fixed to the surface at the bottom center of the vibrating feeder 1152. A feeding platform 1151 is mounted on the surface of the vibrating feeder 1152. An automatic detection module 112 is installed inside the integrated machine body 1. The automatic detection module 112 consists of a turntable 1121, an appearance inspection head 1122, a support platform 1123, an insulation inspection head 1124, and a lifting module 1125. The support platform 1123 is installed inside the integrated machine body 1. A turntable 1121 is mounted on the surface of the support platform 1123. The surfaces of the turntable 1121 and the support platform 1123 rotate relative to each other. The top of the turntable 1121... A lifting module 1125 is mounted on the surface of the machine. An insulation detection head 1124 is mounted on the surface of the lifting module 1125. An appearance detection head 1122 is mounted on the surface of the lifting module 1125. A re-inspection module 107 is mounted on the inner wall of the integrated machine body 1. A marking conveying module 106 is provided on the surface of the fixed frame plate 108. The marking conveying module 106 slides and cooperates with the surface of the fixed frame plate 108. A flipping feeding module 110 is mounted on the surface of the fixed frame plate 108. A shooting detection module 114 is installed inside the integrated machine body 1. The shooting detection module 114 is located above the automatic detection module 112.

[0022] Furthermore, such as Figure 2 and Figure 4As shown, the surface of the operating table 104 is equipped with a holding frame 116 for sorting and collecting defective products. A conveyor rack 117 is mounted on the surface of the feeding module 115, and a correction feeding rack 118 for feeding is provided on the surface of the conveyor rack 117. Convenient picking and placing mechanisms 2 are provided on the surfaces of the operating table 104 and the holding frames 116. The convenient picking and placing mechanism 2 consists of fastening bolts 21, clamping plates 22, fixing plates 23, and positioning blocks 24. A [missing information - likely a device or mechanism] is mounted on the surface of the bottom of the holding frame 116. The positioning block 24 engages with the surface of the operating table 104. Fixing plates 23 are installed on both sides of the operating table 104. Fastening bolts 21 are threadedly connected to the surface of the fixing plates 23. One end of the fastening bolts 21 passes through the fixing plates 23 and extends to the inside of the fixing plates 23. A clamping plate 22 is provided on the inside of the fixing plates 23. The clamping plate 22 and the surface of the fastening bolts 21 rotate with each other. The inner wall of the clamping plate 22 is in contact with the surface of the holding frame 116.

[0023] In practice, when the container 116 is full of defective products, it needs to be removed from the surface of the operating table 104. The defective products inside the container 116 are then processed centrally. The user loosens the fastening bolts 21 on the surface of the fixing plate 23, causing the fastening bolts 21 to move the clamping plate 22 away from the surface of the container 116. The user then pulls the container 116 upwards, causing the container 116 to move the positioning block 24 away from the surface of the operating table 104, thereby removing the container 116 from the surface of the operating table 104. The defective products inside the container 116 are then processed separately, thus realizing the function of the all-in-one machine for convenient loading and unloading of the container 116.

[0024] Furthermore, such as Figure 3 and Figure 5 As shown, an automatic feeding mechanism 3 is provided inside the conveying rack 117 and on the surface of the calibration feeding rack 118. The automatic feeding mechanism 3 consists of a servo motor 31, a rotating shaft 32, a lead screw body 33, a guide groove 34, a holding groove 35, and a lead screw nut 36. The conveying rack 117 has a holding groove 35 inside, and the lead screw body 33 is provided inside the holding groove 35. The lead screw body 33 rotates with the inner wall of the holding groove 35 through a bearing. The lead screw nut 36 is threaded on the surface of the lead screw body 33. The inner wall of the conveying rack 117 has... The guide groove 34 slides with the surface of the lead screw nut 36. The surface of the lead screw nut 36 is fixed to the surface of the calibration feed rack 118. A servo motor 31 is mounted on the surface of the feed rack 117. The input end of the servo motor 31 is electrically connected to the output end of the controller 111. The output end of the servo motor 31 is mounted with a rotating shaft 32 through a coupling. One end of the rotating shaft 32 extends into the interior of the holding groove 35 and is fixed to the surface of the lead screw body 33. The rotating shaft 32 rotates with the inner wall of the feed rack 117 through a bearing.

[0025] During implementation, when the material moves to the area below the calibration feeding rack 118, the controller 111 controls the servo motor 31 to work. Under the action of the servo motor 31, the rotating shaft 32 rotates on the inner wall of the conveying rack 117. When the rotating shaft 32 rotates, it drives the lead screw body 33 to rotate inside the holding groove 35. Under the threaded engagement between the holding groove 35 and the lead screw nut 36, the lead screw nut 36 moves inside the holding groove 35. At this time, the lead screw nut 36 slides inside the guide groove 34. Under the action of the guide groove 34, the lead screw nut 36 is guided. When the lead screw nut 36 moves, it drives the calibration feeding rack 118 to move on the surface of the conveying rack 117. Under the action of the calibration feeding rack 118, the material is fed onto the surface of the turntable 1121 to realize the function of continuous feeding of the integrated machine.

[0026] Working Principle: In use, first place the integrated machine body 1 in the designated position. Then, place the material inside the vibrating feeder 1152. Under the action of the vibrating feeder 1152, the material is vibrated and fed into the surface of the feeding platform 1151. After being conveyed by the feeding platform 1151, the feeding position of the vibrating feeder 1152 and the feeding platform 1151 is adjusted by the moving component 1153, making the feeding module 115 more precise when feeding the material. The material is then photographed by the imaging detection module 114. Subsequently, the turntable 1121 rotates on the surface of the support platform 1123, and the lifting module 1125 moves downwards. The insulation detection head 1124 simultaneously performs insulation testing on four materials on the surface of the turntable 1121. The appearance detection head 1122... Under the action of the lifting module 1125, the material is inspected twice, making the inspection more accurate. After the inspection is completed, the lifting module 1125 is reset, driving the appearance inspection head 1122 and the insulation inspection head 1124 to move upward. This cycle is used to inspect the insulation and appearance of the material. Then, under the action of the flipping feeding module 110, the inspected material is clamped and flipped 180 degrees. Under the action of the marking and conveying module 106, the material is conveyed to the surface of the placement seat 105 and stored on the surface of the placement seat 105. Then, the surface of the material is marked and corrected. Then, the unqualified material is placed inside the holding frame 116 and the qualified material is conveyed by the marking and conveying module 106 to enter the next process. Under the action of the re-inspection module 107, the material is inspected again.

[0027] Subsequently, when the material moves to the bottom of the calibration feeding rack 118, the controller 111 controls the servo motor 31 to work. Under the action of the servo motor 31, the rotating shaft 32 rotates on the inner wall of the conveying rack 117. When the rotating shaft 32 rotates, it drives the lead screw body 33 to rotate inside the holding groove 35. Under the threaded engagement between the holding groove 35 and the lead screw nut 36, the lead screw nut 36 moves inside the holding groove 35. At this time, the lead screw nut 36 slides inside the guide groove 34. Under the action of the guide groove 34, the lead screw nut 36 is guided. When the lead screw nut 36 moves, it drives the calibration feeding rack 118 to move on the surface of the conveying rack 117. Under the action of the calibration feeding rack 118, the material is fed onto the surface of the turntable 1121 to realize the function of continuous feeding of the integrated machine. Thus, the integrated machine can automatically feed materials through the calibration feeding rack 118 during use, making the automation level of the integrated machine higher.

[0028] Subsequently, once the defective products inside the holding frame 116 are full, the holding frame 116 needs to be removed from the surface of the operating table 104. The defective products inside the holding frame 116 are then centrally processed. The user loosens the fastening bolts 21 on the surface of the fixing plate 23, causing the fastening bolts 21 to move the clamping plate 22 away from the surface of the holding frame 116. The user then pulls the holding frame 116 upwards, causing the holding frame 116 to move the positioning block 24 away from the surface of the operating table 104, thereby removing the holding frame 116 from the surface of the operating table 104. The defective products inside the holding frame 116 are then processed separately, enabling the all-in-one machine to conveniently remove and place the holding frame 116. This makes it easier for the user to remove the holding frame 116 from the surface of the operating table 104 and classify the defective products inside the holding frame 116, making the all-in-one machine more convenient to operate and ultimately completing the use of the all-in-one machine.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A multi-head terminal testing and tape-and-reel integrated machine, comprising an integrated machine body (1), characterized in that: The top surface of the all-in-one machine body (1) is equipped with a display screen (102), a control box (103) is installed on the top surface of the all-in-one machine body (1), a controller (111) is installed inside the all-in-one machine body (1), an operating table (104) is installed inside the all-in-one machine body (1), a support frame (109) is installed on the inner wall of the all-in-one machine body (1), a fixing plate (108) is installed on the top surface of the support frame (109), and the interior of the all-in-one machine body (1) is equipped with a control box (103), a controller (111) is installed inside the all-in-one machine body (1), an operating table (104) is installed inside the all-in-one machine body (1), a support frame (109) is installed on the inner wall of the all-in-one machine body (1), and a fixing plate (108) is installed on the top surface of the support frame (109). The platform is equipped with a feeding module (115). The surface of the operating table (104) is provided with a holding frame (116) for classifying and collecting defective products. The surface of the feeding module (115) is equipped with a conveying rack (117). The surface of the conveying rack (117) is provided with a correction feeding rack (118) for feeding. The operating table (104) and the surface of the holding frame (116) are provided with a convenient picking and placing mechanism (2). The inside of the conveying rack (117) and the surface of the correction feeding rack (118) are provided with an automatic feeding mechanism (3).

2. The multi-head terminal testing and tape-and-reel integrated machine according to claim 1, characterized in that: The surface of the integrated machine body (1) is provided with a door (101), and the door (101) rotates with the surface of the integrated machine body (1). A placement seat (105) is installed on the surface of the top position of the operating table (104). A holding plate (113) is provided on the surface of the integrated machine body (1), and the holding plate (113) slides with the inner wall of the integrated machine body (1). A calibration feeding rack (118) is installed on the surface of the top position of the integrated machine body (1). The feeding module (115) consists of a feeding table (1151), a vibrating feeding machine (1152), and a moving... The integrated machine body (1) is composed of a moving component (1153). A vibrating feeder (1152) is installed inside the integrated machine body (1). The vibrating feeder (1152) slides against the inner wall of the integrated machine body (1). A moving component (1153) is installed on the inner wall of the integrated machine body (1). The moving component (1153) is fixed to the surface at the center of the bottom of the vibrating feeder (1152). A feeding platform (1151) is installed on the surface of the vibrating feeder (1152). An automatic detection module (112) is installed inside the integrated machine body (1). The integrated machine body (1) is composed of a turntable (1121), an appearance inspection head (1122), a support platform (1123), an insulation inspection head (1124), and a lifting module (1125). The support platform (1123) is installed inside the integrated machine body (1). The turntable (1121) is mounted on the surface of the support platform (1123). The surfaces of the turntable (1121) and the support platform (1123) rotate in relation to each other. The lifting module (1125) is mounted on the top surface of the turntable (1121). The insulation inspection head (1124) is mounted on the surface of the lifting module (1125). The surface of the lowering module (1125) is equipped with an appearance inspection head (1122). The inner wall of the integrated machine body (1) is equipped with a re-inspection module (107). The surface of the fixed frame plate (108) is equipped with a marking conveying module (106). The marking conveying module (106) and the surface of the fixed frame plate (108) slide against each other. The surface of the fixed frame plate (108) is equipped with a flip feeding module (110). The inside of the integrated machine body (1) is equipped with a shooting inspection module (114). The shooting inspection module (114) is located above the automatic inspection module (112).

3. The multi-head terminal testing and tape-and-reel integrated machine according to claim 1, characterized in that: The convenient pick-and-place mechanism (2) consists of fastening bolts (21), clamping plates (22), fixing plates (23) and positioning blocks (24). The positioning blocks (24) are installed on the surface at the bottom of the holding frame (116). The positioning blocks (24) are engaged with the surface of the operating table (104). Fixing plates (23) are installed on both sides of the operating table (104).

4. The multi-head terminal testing and tape-and-reel integrated machine according to claim 3, characterized in that: The surface of the fixing plate (23) is threaded with a fastening bolt (21). One end of the fastening bolt (21) passes through the fixing plate (23) and extends to the inner side of the fixing plate (23). A clamping plate (22) is provided on the inner side of the fixing plate (23). The clamping plate (22) and the surface of the fastening bolt (21) rotate with each other. The inner wall of the clamping plate (22) is in contact with the surface of the holding frame (116).

5. A multi-head terminal testing and tape-and-reel integrated machine according to claim 1, characterized in that: The automatic feeding mechanism (3) consists of a servo motor (31), a rotating shaft (32), a lead screw body (33), a guide groove (34), a holding groove (35), and a lead screw nut (36). The feeding rack (117) has a holding groove (35) inside. The holding groove (35) is provided with a lead screw body (33) inside. The lead screw body (33) rotates with the inner wall of the holding groove (35) through a bearing. The lead screw nut (36) is threaded on the surface of the lead screw body (33). The inner wall of the feeding rack (117) has a guide groove (34). The guide groove (34) slides with the surface of the lead screw nut (36). The surface of the lead screw nut (36) is fixed to the surface of the calibration feeding rack (118).

6. The multi-head terminal testing and tape-and-reel integrated machine according to claim 1, characterized in that: A servo motor (31) is mounted on the surface of the feed rack (117). The input end of the servo motor (31) is electrically connected to the output end of the controller (111). A rotating shaft (32) is mounted on the output end of the servo motor (31) through a coupling. One end of the rotating shaft (32) extends into the interior of the holding trough (35) and is fixed to the surface of the lead screw body (33). The rotating shaft (32) rotates and engages with the inner wall of the feed rack (117) through bearings.

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