Clamp holder and cocoon cutting machine

Abstract

The utility model provides a clamp holder and a cocoon cutting machine, and the clamp holder is applied to the cocoon cutting machine. Wherein the clamping device comprises a clamping seat and a plurality of clamping pieces arranged along the circumference of the clamping seat, and the clamping pieces are rotationally connected with the clamping seat; the clamping seat is provided with a containing cavity with an opening in one end; a containing cavity is formed in the clamping seat, a plurality of clamping pieces are arranged in the containing cavity, first elastic pieces acting on the clamping pieces are arranged at the bottom of the containing cavity, a sleeve is arranged outside the clamping seat in a sleeving mode, the sleeve is in sliding connection with the clamping seat, and a first anti-disengaging part used for preventing the sleeve from disengaging is arranged on the upper portion of the clamping seat; a second elastic piece is arranged at the end, away from the first anti-disengaging part, of the sleeve, one end of the second elastic piece abuts against the sleeve, and the other end of the second elastic piece is fixedly arranged. And the second elastic piece is used for enabling the sleeve to abut against the first anti-falling part. According to the clamp holder, the silkworm cocoons are clamped through the multiple clamping pieces, stable clamping of the silkworm cocoons is achieved, and the silkworm cocoons are prevented from rotating in the cocoon cutting process.

Description

TECHNICAL FIELD

[0001] The utility model relates to silkworm cocoon processing equipment technical field, especially a kind of gripper and cocoon cutting machine. BACKGROUND

[0002] Tussah cocoon is the cocoon of tussah silkworm, including cocoon shell and pupa in cocoon shell. Pupa is rich in protein, vitamins and other nutrients as a food material. In order to take out pupa from cocoon shell, usually cut one end of cocoon shell, and then take out pupa.

[0003] At present, cocoon cutting operation in most areas still relies on manual operation, and manual operation has the problem of low efficiency. In order to improve efficiency, various cocoon cutting machines have appeared to realize mechanized cocoon cutting operation, but the cocoon gripper of cocoon cutting machine has the problem of unstable clamping effect, which causes the cocoon shell to rotate in the gripper during cocoon cutting, the cutting knife cannot effectively open the cocoon shell, and the pupa cannot be taken out. UTILITY MODEL CONTENTS

[0004] The utility model aims at the defects in the above-mentioned technology, provides a kind of gripper and cocoon cutting machine, realizes stable clamping to cocoon shell by the clamping piece of gripper, guarantees the stability of cocoon shell in the process of cocoon cutting operation, improves the success rate of cocoon cutting and operation efficiency.

[0005] The utility model is realized as follows:

[0006] In the first aspect, the application provides a kind of gripper, mainly suitable for the fixation of tussah cocoon in the process of cocoon cutting operation, the gripper includes clamping seat and multiple clamping pieces arranged along the circumference of the clamping seat, the clamping piece is rotatably connected with the clamping seat;Wherein,

[0007] The clamping seat is provided with an open-ended receiving cavity;The bottom of the receiving cavity is provided with a first elastic member acting on multiple clamping pieces;

[0008] The clamping seat is externally sleeved with a sleeve, the sleeve is slidably connected with the clamping seat, and the upper part of the clamping seat is provided with a first anti-drop part for preventing the sleeve from falling out;

[0009] One end of the sleeve away from the first anti-drop part is provided with a second elastic member, one end of the second elastic member abuts against the sleeve, and the other end is fixedly arranged;The second elastic member is used to make the sleeve abut against the first anti-drop part;

[0010] The elastic force of the second elastic member is greater than that of the first elastic member.

[0011] In the above scheme, when the sleeve is pressed to compress the second elastic member, the sleeve slides along the clamping seat and away from the first anti-disengagement part, at this time the sleeve releases the restraint on the upper part of the clamping piece, and the plurality of clamping pieces are in an open state at one end close to the first anti-disengagement part under the action of the first elastic member, and can hold the cocoon placed in the holding cavity of the holder. When the sleeve is released from the pressure, the sleeve is reset under the action of the second elastic member and abuts against the first anti-disengagement part. The sleeve drives the plurality of clamping pieces to embrace the outside of the cocoon during the resetting process, and the cocoon is clamped by the plurality of clamping pieces. Since the cocoon shell of the tussah cocoon has a certain hardness and elasticity, the cocoon shell at the contact position with the clamping piece will be slightly deformed, so that the holder stably clamps the cocoon, prevents the cocoon shell from rotating relative to the holder during cocoon cutting, and improves the success rate of cocoon cutting.

[0012] In a specific implementable scheme, the clamping seat is circumferentially provided with a plurality of openings, and the clamping pieces are embeddedly installed in the openings.

[0013] In a specific implementable scheme, the clamping seat is provided with a first ring groove; and the clamping piece is provided with a groove on the side close to the axis of the clamping seat.

[0014] Further comprising a snap spring which is simultaneously clamped in the first ring groove and the groove.

[0015] In a specific implementable scheme, the upper part of the clamping piece is provided with an inclined surface on the side away from the axis of the clamping seat, and the inclined surface is inclined from bottom to top away from the axis of the clamping seat.

[0016] In a specific implementable scheme, the lower part of the clamping piece is provided with an arc surface, and the arc surface is provided with an anti-disengagement part at the bottom.

[0017] The first elastic member is a first spring, one end of the first spring abuts against the bottom of the holding cavity, and the other end abuts against the arc surface.

[0018] In a specific implementable scheme, the second elastic member is a second spring; the lower part of the clamping seat is provided with a second ring groove, and the second ring groove clamps an elastic sheet.

[0019] One end of the second spring abuts against the elastic sheet, and the other end abuts against the end of the sleeve.

[0020] In a second aspect, the application provides a cocoon cutting machine, which comprises the holder in the above scheme.

[0021] Further comprising a control system, a rack, and a turntable rotationally connected with the rack; a plurality of the holders are arranged circumferentially on the turntable, and the holders are rotationally connected with the turntable.

[0022] The rack is also provided with a cutting assembly for cutting cocoon and a driving mechanism for driving the gripper to rotate relative to the rotating disc; when the gripper moves to a position corresponding to the cutting assembly, the driving mechanism acts on the gripper to drive the gripper to rotate.

[0023] The rack is also provided with a cutting assembly for cutting cocoon and a driving mechanism for driving the gripper to rotate relative to the rotating disc; when the gripper moves to a position corresponding to the cutting assembly, the driving mechanism acts on the gripper to drive the gripper to rotate.

[0024] The control system is used for controlling the rotation of the rotating disc and the operation of the driving mechanism and the opening assembly.

[0025] In a specific embodiment, the cutting assembly comprises a base fixedly connected to the rack and a spring piece having one end connected to the base and the other end connected to a clamping cutter, and the clamping cutter holds a blade suspended outside the rotating path of the gripper and the rotating disc.

[0026] The clamping cutter is fixedly provided with an elastic support on the side away from the gripper, and the elastic support elastically abuts against the clamping cutter.

[0027] In a specific embodiment, the rotating disc is circumferentially provided with a plurality of support seats; the gripper is provided with a fixed shaft at the bottom of the clamping seat, the fixed shaft is sleeved with a bearing seat, and the fixed shaft is rotationally connected to the bearing seat.

[0028] The bearing seat is fixedly connected to the support seat.

[0029] In a specific embodiment, the fixed shaft is also sleeved with a first friction wheel, the first friction wheel abuts against the bearing seat and is fixedly connected to the fixed shaft.

[0030] The driving mechanism comprises a motor fixedly connected to the rack and a second friction wheel connected to the output end of the motor.

[0031] In a specific embodiment, the rack comprises a first side plate and a second side plate, the first side plate and the second side plate are connected to the frame of the rack through a lead screw, a plurality of nuts are arranged on the lead screw, and the distance between the first side plate and the second side plate is limited by the plurality of nuts.

[0032] The rotating disc is rotationally connected to the first side plate.

[0033] In a specific embodiment, the rack further comprises a cocoon lifting assembly.

[0034] The cocoon lifting assembly comprises a telescopic driving member fixedly arranged and a lifting rod arranged correspondingly to the telescopic driving member.

[0035] The clamping seat bottom of the clamping device is provided with a through hole, the ejector rod is inserted into the through hole, and the two ends of the ejector rod are provided with second anti-dropping parts with a larger diameter than the through hole;

[0036] The ejector rod is sleeved with a third spring near one side of the telescopic driving part, one end of the third spring abuts against the clamping seat, and the other end abuts against the second anti-dropping part of the ejector rod. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 is a schematic view of the three-dimensional structure of the clamping device of the present application;

[0038] Figure 2 is a schematic view of the cross-sectional structure of the clamping device in an open state;

[0039] Figure 3 is a schematic view of the cross-sectional structure of the clamping device in a closed state;

[0040] Figure 4 is a schematic view of the cross-sectional structure of the clamping seat;

[0041] Figure 5 is a schematic view of the three-dimensional structure of the cocoon cutting machine of the present application;

[0042] Figures 6-9 is a schematic view of the structure of the cocoon cutting machine of the present application;

[0043] Figure 10 is a schematic view of the cutting assembly of the present application;

[0044] Figure 11 is a schematic view of the assembly structure of the rotary disc and the clamping device of the present application;

[0045] Figure 12 is a schematic view of the assembly structure of the clamping device, the bearing seat, the first friction wheel and the cocoon ejecting assembly of the cocoon cutting machine of the present application;

[0046] Figure 13 is a schematic view of the cross-sectional structure; Figure 12 DETAILED DESCRIPTION

[0047] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0048] ​To facilitate the understanding of the clamping device and cocoon cutting machine provided by the embodiments of the present application, the application scenarios thereof are first described. The clamping device and cocoon cutting machine of the present application are mainly applicable to the clamping and cutting of tussah cocoon. The cocoon shell is stably clamped by the plurality of clamping pieces of the clamping device, thereby preventing the cocoon shell from rotating during the cutting operation of the cocoon cutting machine. The problems of unstable clamping of the cocoon shell by the clamping device, rotation of the cocoon shell during the cutting operation, and failure of cutting and inability to take out the pupae in the cocoon shell are solved, and the production efficiency is improved.

[0049] By Figure 1 — Figure 4 The first aspect of the present application provides a clamping device, which is mainly applicable to the fixation of tussah cocoon 2 during the cutting operation of the cocoon. Referring to Figure 1 The clamping device comprises a clamping seat 11 and a plurality of clamping pieces 12 arranged along the circumference of the clamping seat 11, and the clamping pieces 12 are rotationally connected with the clamping seat 11. In order to ensure the stability of clamping, the plurality of clamping pieces 12 are evenly arranged along the circumference of the axis of the clamping seat 11 in the present embodiment, so as to ensure the uniformity of the force received by the cocoon shell in all directions and prevent the cocoon shell from deforming due to local force concentration.

[0050] In order to realize the placement of the cocoon 2 in the clamping device and the stable clamping of the cocoon shell of the cocoon 2, the clamping piece 12 is rotationally connected with the clamping seat 11 in the present application. For the convenience of understanding, the two ends of the clamping piece 12 along the axis direction of the clamping seat 11 are respectively named as the first end 121 and the second end 122 in the present embodiment. Among them, the cocoon 2 is placed at the first end 121, and the other end is the second end 122. The clamping piece 12 is rotationally connected with the clamping seat 11 through a rotating shaft, wherein the rotating shaft can be a shaft body inlaid in the clamping seat 11 or a shaft body elastically clamped in the clamping seat 11, and the clamping piece 12 can rotate relative to the clamping seat 11 around the rotating shaft.

[0051] Referring to Figure 2 , Figure 2 is a cross-sectional structure schematic view of the clamping piece 12 of the clamping device of the present application in the open state. The clamping piece 12 is rotationally connected with the clamping seat 11. When the first end 121 is away from the axis of the clamping seat 11, the second end 122 is close to the axis of the clamping seat 11, and at this time the clamping piece 12 is in the open state; when the first end 121 is close to the axis of the clamping seat 11, the second end 122 is away from the axis of the clamping seat 11, and at this time the clamping piece 12 is in the closed state.

[0052] The clamping seat 11 is provided with a containing cavity 111 with one end opening 113, the containing cavity 111 can contain the cocoon 2, a plurality of clamping pieces 12 are arranged along the circumference of the containing cavity 111 in the embodiment, the cocoon 2 is placed in the containing cavity 111, and the cocoon 2 is clamped by the cocoon shell through the plurality of clamping pieces 12. In order that the plurality of clamping pieces 12 can be opened when the cocoon 2 is placed, the first elastic member 13 acting on the plurality of clamping pieces 12 is arranged at the bottom of the containing cavity 111. The first elastic member 13 can be a spring or an elastic rubber ring and the like, when the first elastic member 13 is a spring, the spring is elastically abutted against the clamping piece 12; when the first elastic member 13 is an elastic rubber ring, the elastic rubber ring is wound on the second end 122 of the clamping piece 12, so that the second end 122 of the clamping piece 12 has a movement trend of converging towards the axis of the clamping seat 11. When the limiting position near the first end 121 of the clamping piece 12 is released, the clamping piece 12 rotates about the pivot under the elastic force of the first elastic member 13, so that the first end 121 of the clamping piece 12 is in an open state.

[0053] In order that the clamping piece 12 can timely embrace to form the fixation of the cocoon 2 after the cocoon 2 is placed in the containing cavity 111 of the clamping seat 11, a sleeve 14 is sleeved outside the clamping seat 11, the sleeve 14 is in sliding connection with the clamping seat 11, and the upper portion of the clamping seat 11 is provided with a first anti-falling part 112 for preventing the sleeve 14 from falling out. It should be noted that the sliding connection between the sleeve 14 and the clamping seat 11 in the embodiment means that the inner hole of the sleeve 14 and the outer wall of the clamping seat 11 are in clearance fit, so that the sleeve 14 can slide along the outer wall of the clamping seat 11. The first anti-falling part 112 is arranged on the upper portion of the clamping seat 11, wherein the first anti-falling part 112 can be arranged integrally with the clamping seat 11, for example, the upper portion of the clamping seat 11 has a diameter larger than the inner diameter of the sleeve 14, or a top pin or the like is arranged on the upper portion of the clamping seat 11, so as to block the sleeve 14 from falling out of the clamping seat 11; the first anti-falling part 112 can also be arranged separately from the clamping seat 11; as long as the sleeve 14 can be prevented from falling out of the clamping seat 11. The upper portion of the clamping seat 11 in the embodiment refers to the side of the clamping seat 11 close to the opening 113 of the containing cavity 111.

[0054] Referring to Figure 3The sleeve 14 abuts against the clamping piece 12 on the side away from the axis direction of the clamping seat 11, so that the clamping piece 12 rotates along the rotating shaft, and the first end 121 of the clamping piece 12 is gathered towards the axis direction of the clamping seat 11, so that the clamping piece 12 clamps the cocoon 2. In order to enable the sleeve 14 to slide towards the opening 113 end of the accommodating cavity 111 of the clamping seat 11 when the clamping piece 12 needs to clamp the cocoon 2, the sleeve 14 away from the first anti-disengagement part 112 is provided with a second elastic member 15, one end of the second elastic member 15 abuts against the sleeve 14, and the other end is fixedly arranged. The fixedly arranged end of the second elastic member 15 can be abutted against the ring table or the blocking piece arranged outside the clamping seat 11. The sleeve 14 is abutted against the first anti-disengagement part 112 through the elastic force of the second elastic member 15, and the sleeve 14 makes the plurality of clamping pieces 12 in a hugging state. The elastic force of the second elastic member 15 is greater than the elastic force of the first elastic member 13, so as to ensure that the sleeve 14 can overcome the resistance of the first elastic member 13 and push the clamping piece 12 to hug.

[0055] In the above scheme, when the sleeve 14 is pressed to compress the second elastic member 15, the sleeve 14 slides along the clamping seat 11 and away from the first anti-disengagement part 112, at this time, the sleeve 14 releases the restraint on the upper part of the clamping piece 12, and the plurality of clamping pieces 12 are in an open state at the end close to the first anti-disengagement part 112, so as to place the cocoon 2 in the accommodating cavity 111 of the clamp. The pressure of the sleeve 14 sliding towards the second elastic member 15 can be provided by the power member of the electric push rod or the air cylinder, the end of the sleeve 14 is directly or indirectly pushed by the power member, so that the second elastic member 15 is compressed, and the sleeve 14 slides towards the second elastic member 15. When the sleeve 14 is released from the pressure, the sleeve 14 is reset and abutted against the first anti-disengagement part 112 under the action of the second elastic member 15. The plurality of clamping pieces 12 are wrapped around the outside of the cocoon 2 in the resetting process of the sleeve 14, and the cocoon 2 is clamped by the plurality of clamping pieces 12. Since the cocoon shell of the tussah cocoon 2 has a certain hardness and elasticity, the cocoon shell in contact with the clamping piece 12 will be slightly deformed, so as to realize the stable clamping of the cocoon 2 by the clamp, prevent the cocoon shell from rotating relative to the clamp during the cocoon cutting process, and improve the success rate of cocoon cutting.

[0056] In an alternative embodiment, the clamping seat 11 is circumferentially provided with a plurality of openings 113, and the clamping pieces 12 are embeddedly installed in the openings 113. In this embodiment, the clamping pieces 12 are in the form of a sheet, and the thickness thereof can be 2 mm, 3 mm, 4 mm, etc. The cocoon 2 is clamped by the side surface of the clamping pieces 12. Since the thickness of the clamping pieces 12 is small, the clamping force is improved, and the stability of clamping the cocoon 2 is ensured. The plurality of openings 113 are preferably uniformly arranged along the circumference of the clamping seat 11, so that the plurality of clamping pieces 12 are also uniformly arranged along the circumference of the clamping seat 11. This ensures that the cocoon shell is uniformly clamped in all directions, so that the cocoon shell is not subjected to uneven stress, and local deformation is not too large, which can cause large pits in the cocoon shell, damage the pupae in the cocoon shell, and the deformed cocoon shell is not conducive to cutting.

[0057] In addition, the clamping pieces 12 are embeddedly installed in the openings 113. Since the clamping seat 11 itself has a certain wall thickness, the side surface of the opening 113 can limit the clamping pieces 12, so that the clamping pieces 12 are not skewed during rotation, and the stability of clamping the cocoon 2 by the clamping pieces 12 is improved.

[0058] In an alternative embodiment, in order to realize the rotation of the clamping pieces 12 relative to the clamping seat 11, a first ring groove 114 is arranged in the clamping seat 11, and a recess 123 is arranged on the side of the clamping piece 12 close to the axis of the clamping seat 11. A circlip 15 is simultaneously clamped in the first ring groove 114 and the recess 123. As an example, the circlip 15 in this embodiment is in the form of a ring-shaped steel wire, and the circlip 15 is provided with an opening 113 for tensioning and releasing. The circlip 15 is used as the rotating shaft of the clamping pieces 12, which is convenient to install, and the plurality of clamping pieces 12 are fixed on the clamping seat 11 by the tension of the circlip 15.

[0059] In an alternative embodiment, an inclined surface 124 is arranged on the upper portion of the clamping piece 12 away from the axis of the clamping seat 11, and the inclined surface 124 is inclined from bottom to top away from the axis of the clamping seat 11. In this embodiment, the upper portion of the clamping piece 12 refers to the end of the clamping piece 12 close to the first anti-disengagement portion 112 of the clamping seat 11, and the inclined surface 124 is arranged on the side of the clamping piece 12 close to the sleeve 14. When the clamping piece 12 is in the embracing state, the sleeve 14 abuts against the inclined surface 124 of the clamping piece 12, which ensures that the cocoon 2 is effectively fixed, and at the same time, the width of the clamping piece 12 below the inclined surface 124 is effectively reduced, so that when the clamping piece 12 is in the open state by being pressed downward by the sleeve 14, the clamping piece 12 does not interfere with the sleeve 14, and the opening angle of the clamping piece 12 is sufficient. In addition, it also has the effect of reducing the wall thickness of the clamping seat 11 and saving materials.

[0060] In an alternative embodiment, referring to Figure 2 , Figure 3In order to ensure that the clamping piece 12 can be smoothly opened, the lower part of the clamping piece 12 is provided with an arc surface 125, and the bottom of the arc surface 125 is provided with an anti-falling part 126. Wherein, the lower part of the clamping piece 12 refers to one end of the clamping piece 12 close to the second end 122, and the arc surface 125 is arranged on the side of the clamping piece 12 away from the axis of the clamping seat 11. At this time, the first elastic member 13 is a first spring, one end of the first spring abuts against the bottom of the accommodating cavity 111, and the other end abuts against the arc surface 125. It should be noted that the first spring in the embodiment is a compression spring, which has a tendency to elongate.

[0061] When the sleeve 14 is pressed to slide downward, the sleeve 14 loses the restraint on the upper part of the clamping piece 12, and under the action of the elastic force of the first spring, the second end 122 of the clamping piece 12 moves towards the axis of the clamping seat 11, and the first end 121 of the clamping piece 12 moves away from the axis of the clamping seat 11, so that the clamping piece 12 is in an open state. The arrangement of the arc surface 125 enables the clamping piece 12 and the first spring to smoothly slide.

[0062] In an alternative embodiment, the second elastic member 15 is a second spring. In order to facilitate the installation of the second spring and the sleeve 14 on the clamping seat 11, the lower part of the clamping seat 11 is provided with a second ring groove 115 for clamping an elastic sheet. The elastic sheet in the present application is in the shape of a flat sheet and can be elastically opened and closed. After the sleeve 14 and the second spring are sequentially installed on the clamping seat 11, the elastic sheet is clamped in the second ring groove 115, facilitating installation. At this time, one end of the second spring abuts against the elastic sheet, and the other end abuts against the end of the sleeve 14.

[0063] In a second aspect, with reference to Figures 5-13 The present application provides a cocoon cutting machine, which comprises the gripper 1 in the above-mentioned scheme, and realizes stable clamping of the cocoon 2 through the gripper 1, thereby solving the problem of rotation of the cocoon 2 in the cocoon cutting process. The cocoon cutting machine further comprises a control system, a rack 3, and a turntable 4 rotationally connected with the rack 3. The rack 3 is used for installing related components required by the cocoon cutting machine. As an example, the rack 3 comprises a panel 32 and a frame 31, and the panel 32 is arranged on the top of the frame 31. The panel 32 is provided with a rectangular or other shaped hole for exposing part of the turntable 4 above the panel 32.

[0064] As an example, in order to realize the rotational connection between the turntable 4 and the rack 3, a motor 5 can be fixedly connected to the rack 3, and the output shaft of the motor 5 is fixedly connected with the turntable 4. When the output shaft of the motor 5 rotates, the turntable 4 rotates with the output shaft of the motor 5.

[0065] The plurality of clamping devices 1 are arranged circumferentially on the rotating disc 4, and the cocoon 2 is clamped by the plurality of clamping devices 1, so that the mechanical cocoon cutting is realized. During the cocoon cutting operation, the cutting assembly 6 needs to cut the cocoon in all directions in the circumferential direction, and therefore the clamping device 1 is rotationally connected to the rotating disc 4 in the present application. During the cocoon cutting operation, the clamping device 1 drives the cocoon 2 to rotate, so that the cutting assembly 6 can cut the cocoon in all directions in the circumferential direction. In order to realize the rotation of the clamping device 1 relative to the rotating disc 4, the driving mechanism 8 for driving the clamping device 1 to rotate relative to the rotating disc 4 is arranged in the present application. The cutting assembly 6 for cutting the cocoon is arranged on the frame 3, and when the clamping device 1 clamping the cocoon 2 runs to the corresponding position of the cutting assembly 6, the driving mechanism 8 acts on the clamping device 1 to drive the clamping device 1 to rotate. At the same time, the cutting assembly 6 cuts the cocoon shell.

[0066] In order to realize the loading of the cocoon into the clamping device 1 and the exit of the cocoon shell cut from the clamping device 1, the opening assembly 7 is further arranged on the frame 3 in the present application, and the opening assembly 7 is arranged outside the rotating path of the clamping device 1 (i.e. the rotating path of the clamping device 1 rotating with the rotating disc 4). When the clamping device 1 runs to the corresponding position, the sleeve 14 of the clamping device 1 is pressed by the opening assembly 7, so that the clamping piece 12 of the clamping device 1 is in an open state. At this time, on the one hand, the cocoon 2 can be placed into the accommodating cavity 111 of the clamping device 1; on the other hand, the cocoon shell originally clamped in the clamping device 1 can be taken out under the action of gravity or other external force.

[0067] The control system in the present application can be a PLC controller or other programmable controller, and the rotating disc 4, the driving mechanism 8 and the opening assembly 7 are controlled by the control system to realize the automatic cocoon cutting.

[0068] In order to facilitate the understanding of the cocoon cutting machine and the operation process thereof, the following will be described in combination with Figure 9 The working mode of the cocoon cutting machine will be described. As an example, the cocoon cutting machine is preset with a cocoon loading position, a cocoon cutting position and a cocoon withdrawing position.

[0069] As Figure 9As shown, the cocoon loading position is equipped with an opening component 7. When the turntable 4 drives the gripper 1 to rotate to the cocoon cutting position, the turntable 4 stops rotating, and the gripper 1 remains in the cocoon loading position. The opening component 7 operates, applying pressure to the sleeve 14 of the gripper 1, causing the sleeve 14 to slide along the gripping seat 11. At this time, the multiple clamping plates 12 are in an open state, allowing the cocoon 2 to be placed into the gripper 1. After the cocoon 2 is placed, the opening component 7 releases the pressure on the sleeve 14, and the sleeve 14 resets under the action of the second elastic element 15, driving the clamping plates 12 to clamp the cocoon shell. To achieve the placement of the cocoon 2 into the gripper 1, the pressing time of the opening component 7 on the sleeve 14 and the dwell time of the turntable 4 can be set, such as 1 second, 2 seconds, etc., where the dwell time can be slightly longer than the pressing time. The operator needs to place the cocoon 2 into the clamp 1 within the set pressing time. After the pressing time ends, open the component 7 to release the pressure on the sleeve 14, and the sleeve 14 will reset so that the clamp 12 clamps the cocoon shell.

[0070] Continue to refer to Figure 9 After the cocoon 2 is clamped in the gripper 1, the motor 5 continues to rotate, driving the turntable 4 to rotate. The turntable 4 drives the gripper 1 to rotate to the cocoon-cutting position. The frame 3 is equipped with a cutting component 6 and a drive mechanism 8 at the cocoon-cutting position. When the gripper 1 holding the cocoon 2 rotates to the cocoon-cutting position, the turntable 4 stops rotating, and the gripper 1 holding the cocoon 2 stays at the cocoon-cutting position. At this time, the cocoon shell contacts the cocoon-cutting knife in the cutting component 6. At the same time, the gripper 1 is connected to the drive mechanism 8. The drive mechanism 8 drives the gripper 1 holding the cocoon 2 to rotate. While the gripper 1 rotates, the cocoon-cutting knife in the cutting component 6 completes the circumferential cutting of the cocoon shell.

[0071] To facilitate the loading of cocoons into the clamp 1 and the observation of the cocoon cutting status, in this embodiment, both the cocoon loading position and the cocoon cutting position are located above the panel 32.

[0072] Continue to refer to Figure 9 After the cocoon is cut, the turntable 4 continues to rotate. As the turntable 4 rotates, the clamp 1, which has finished cutting the cocoon, rotates to the cocoon removal position. To facilitate cocoon removal, in this embodiment, the cocoon removal position is located on the side of the turntable 4 closest to the ground. The cocoon shell after cutting will have a ring-shaped cut. During the process of the clamp 1 rotating from the cocoon cutting position to the cocoon removal position, the ring-shaped cut faces the ground, and the cocoon pupa inside the cocoon shell falls out from the ring-shaped cut under the action of gravity. The above-mentioned ring-shaped cut facing the ground does not necessarily mean that the ring-shaped cut is directly facing the ground; it can also have a certain tilt angle. After the clamp 1 rotates to the cocoon removal position, the turntable 4 stops rotating, and the clamp 1 stays in the cocoon removal position. In order to achieve smooth cocoon removal, in this embodiment, an opening component 7 is also provided at the cocoon removal position. By pressing the sleeve 14 of the clamp 1 with the opening component 7, the clamping piece 12 is opened. At this time, the cocoon shell can be detached from the clamp 1 by external force or by the weight of the cocoon shell itself, thus completing the cocoon removal. This step also allows you to set the dwell time of turntable 4 and the pressing time of opening component 7.

[0073] Following the steps described above, the cocoon-cutting machine completes the automatic cocoon-cutting operation, improving production efficiency. It should be noted that, for ease of programming, the multiple grippers 1 connected to the turntable 4 are evenly positioned along the circumference of the turntable 4. For ease of control, the motor 5 driving the turntable 4 can be a stepper motor 5, a servo motor 5, etc., and the cocoon-cutting efficiency can be adjusted by controlling parameters such as the turntable 4's rotational speed and dwell time.

[0074] To ensure that the opening angle of each clamping piece 12 is as similar as possible when they are open, this embodiment provides two opening components 7 at both the cocoon loading and unloading positions, with the two opening components 7 respectively located on both sides of the gripper 1. By simultaneously pressing down on both sides of the sleeve 14, the sleeve 14 is prevented from tilting during sliding, ensuring that the multiple clamping pieces 12 open at the same angle. This prevents the multiple clamping pieces 12 from having different opening angles, which could cause the cocoon 2 to tilt after being clamped, affecting subsequent cocoon shell cutting operations.

[0075] In an optional embodiment, since the cocoon shell sizes of different silkworm cocoons 2 may vary, the blade 64 of the cutting component 6 in this application makes elastic contact with the cocoon shell to accommodate silkworm cocoons 2 of different sizes. (See also...) Figure 10 The cutting assembly 6 includes a base 61 fixedly connected to the frame 3, and a spring piece 62 connected to the base 61 at one end. The other end of the spring piece 62 is connected to a blade clamp 63, which holds the blade 64 and suspends it outside the path of the clamp 1 as it rotates with the turntable 4. Meanwhile, an elastic support member 65 is fixedly provided on the side of the blade clamp 63 away from the clamp 1, and the elastic support member 65 elastically abuts against the blade clamp 63.

[0076] As an example, the spring plate 62 can be made of a thin steel sheet with a certain degree of elasticity, or a thin sheet of other elastic material. The function of the spring plate 62 is to act as the swing arm of the blade clamp 63. Depending on the diameter of the cocoon shell, the spring plate 62 will produce an appropriate amount of elastic deformation. This allows the cocoon shell to make elastic contact with the blade 64, preventing the blade clamp 63 and other components from rigidly abutting against the cocoon shell, and reducing the rotational resistance of the cocoon shell. This also prevents the cocoon shell from rotating within the clamp 1 during the cocoon cutting process, improving the stability of the cocoon cutting operation.

[0077] To further optimize the structure of the cutting component 6 and improve the stability of the gripper 1 in holding the cocoon 2 during the cocoon cutting operation, the spring piece 62 is inclined in this embodiment. It gradually approaches the rotation path of the gripper 1 from the base 61 to the clamping device 63. Even if the cocoon shell comes into contact with the spring piece 62, the inclined setting of the spring piece 62 reduces resistance and improves gripping stability. The inclined setting of the spring piece 62 can be achieved by setting the contact surface between the base 61 and the spring piece 62 to an inclined surface 124 with the same inclination angle as the spring piece 62, or by tilting the base 61 to the frame 3 to achieve the inclined setting of the spring piece 62.

[0078] Similarly, to prevent the cutting component 6 from causing large rotational resistance to the cocoon shell and to improve clamping stability, as an example, in this embodiment, the side of the blade holder 63 that holds the blade 64 is a second arc-shaped surface 631125, and the blade 64 is placed on the second arc-shaped surface 631125 near the highest point of the rotation path of the holder 1. By contacting the cocoon shell through the second arc-shaped surface 631125, the rotational resistance of the cocoon shell is reduced.

[0079] In this application, the elastic support 65 provides sufficient support for the blade 64, allowing it to elastically contact the cocoon while simultaneously applying pressure to enable it to cut the cocoon. As an example, the elastic support 65 includes a sleeve 651 and a push pin 652. The push pin 652 passes through the sleeve 651, and a spring is provided between the push pin 652 and the bottom of the sleeve 651 to provide elastic support for the push pin 652. The other end of the push pin 652 abuts against the side of the blade clamp 63 away from the rotation path of the clamp 1. During cocoon cutting, the push pin 652 abuts against the blade clamp 63, providing support for the blade 64. The sleeve 651 is threaded to the frame 3 and then locked with a nut 653. The protruding length of the sleeve 651 can be adjusted, thereby adjusting the contact range of the push pin 652 with the blade clamp 63, indirectly adjusting the support force of the elastic support 65 on the blade 64.

[0080] In one alternative implementation, refer to Figures 11-13 To achieve the connection between the turntable 4 and the gripper 1, multiple support seats 41 are arranged around the circumference of the turntable 4. Preferably, the support seats 41 are evenly distributed along the circumference of the turntable 4, which facilitates control system programming. The support seats 41 can be fixedly installed on the turntable 4 using bolts, locating pins, or other components. To rotatably connect the gripper 1 and the support seats 41, a fixed shaft 116 is provided at the bottom of the gripper seat 11 of the gripper 1. The fixed shaft 116 is sleeved with a bearing seat 42, and the fixed shaft 116 and the bearing seat 42 are rotatably connected. To improve the smoothness of rotation, a bearing 43 can be installed inside the bearing seat 42, connecting the fixed shaft 116 and the bearing seat 42. The bearing 43 can be fixed inside the bearing seat 42 using a snap ring or other components.

[0081] To connect the bearing seat 42 to the support seat 41, the bearing seat 42 of this application has multiple through holes around its circumference. Bolts are installed in the through holes to fix the bearing seat 42 to the support seat 41. Since the clamp 1 can rotate relative to the bearing seat 42, and the bearing seat 42 is fixedly connected to the support seat 41, the clamp 1 is rotatably connected to the turntable 4.

[0082] In an optional embodiment, to enable the gripper 1 to rotate relative to the turntable 4 at the cocoon-cutting position, a first friction wheel 44 is further sleeved on the fixed shaft 116. The first friction wheel 44 abuts against the bearing 43 seat 42 and is fixedly connected to the fixed shaft 116. The first friction wheel 44 and the fixed shaft 116 can be fixedly connected by components such as a top bolt, allowing the gripper 1 to rotate with the first friction wheel 44.

[0083] To drive the first friction wheel 44 to rotate, the drive mechanism 8 includes a motor 5 fixedly connected to the frame 3, and a second friction wheel 81 connected to the output end of the motor 5. When the gripper 1 rotates with the turntable 4 to the cocoon-cutting position, the first friction wheel 44 contacts the second friction wheel 81. Utilizing the friction between the two wheels, when the second friction wheel 81 rotates, the first friction wheel 44 rotates accordingly, thereby driving the gripper 1 to rotate. As an example, in this embodiment, the first friction wheel 44 is made of metal, and to increase the friction, a groove 123 can be provided on the outer surface of the first friction wheel 44. The second friction wheel 81 can be made of a hard rubber material with a certain elasticity; when the two friction wheels contact, the elastic deformation of the elastic material can increase the friction between the two friction wheels.

[0084] In an optional embodiment, to facilitate the connection between the components and the frame 3, the frame 3 of this application includes a first side plate 33 and a second side plate 34. (Refer to...) Figure 5 , Figure 7 The first side plate 33 and the second side plate 34 are connected to the frame 31 of the machine frame 3 by a lead screw 35. The lead screw 35 is provided with a plurality of nuts, which limit the distance between the first side plate 33 and the second side plate 34, thereby making the distance between the first side plate 33 and the second side plate 34 adjustable and facilitating the installation of related components.

[0085] As an example, in this application, the opening component 7 and the cutting component 6 are both installed on the first side plate 33 and / or the second side plate 34 and are fixedly connected by bolts or other connecting parts.

[0086] In the board application, the turntable 4 is rotatably connected to the first side plate 33, and the motor 5 connected to the turntable 4 is fixedly connected to the first side plate 33. The turntable 4 is connected to the output shaft of the motor 5, thereby realizing the rotatable connection between the turntable 4 and the first side plate 33.

[0087] In an optional embodiment, to facilitate the smooth removal of the cut cocoon shell at the cocoon removal position, this application provides a cocoon-topping assembly 9. The cocoon-topping assembly 9 includes a fixedly mounted telescopic drive member 91 and a corresponding push rod 92. As an example, the telescopic drive member 91 can be a cylinder, with a top plate 94 connected to the cylinder rod end. When the gripper 1 rotates with the turntable 4 to the cocoon removal position, the cylinder operates, causing the top plate 94 to abut against the push rod 92, and pushing the push rod 92 to hold the cocoon shell inside the gripper 1, thus forcefully pushing the cocoon shell out. In this embodiment, the top plate 94 may also be omitted, and the push rod 92 can be moved directly by the cylinder rod.

[0088] To ensure stable operation of the push rod 92, the clamping seat 11 of the clamping device 1 has a through hole at its bottom. The push rod 92 passes through the through hole, and both ends of the push rod 92 have second anti-detachment parts 921 with a diameter larger than the through hole. The second anti-detachment parts 921 restrict the push rod 92 within the through hole. One or both of the second anti-detachment parts 921 can be detachably connected to the push rod 92, such as by means of threads.

[0089] After the cocoon is removed, the push rod 92 needs to be reset. In this application, the reset of the push rod 92 is achieved by a third spring 93. The third spring 93 is sleeved on the side of the push rod 92 near the telescopic drive member 91. One end of the third spring 93 abuts against the clamping seat 11, and the other end abuts against the second anti-detachment part 921 of the push rod 92. When the cylinder completes the cocoon removal operation, the cylinder retracts, and under the action of the third spring 93, the push rod 92 slides back to its original position towards the telescopic drive member 91.

[0090] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0091] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A clamp, characterized in that, include: A clamping base and a plurality of clamping pieces arranged along the circumference of the clamping base, wherein the clamping pieces are rotatably connected to the clamping base; wherein, The clamping seat has a receiving cavity with one end open; the bottom of the receiving cavity is provided with a first elastic element that acts on the plurality of clamping pieces; A sleeve is fitted onto the outside of the clamping seat, and the sleeve is slidably connected to the clamping seat. The upper part of the clamping seat is provided with a first anti-detachment part to prevent the sleeve from falling out. The sleeve is provided with a second elastic element at the end away from the first anti-detachment part. One end of the second elastic element abuts against the sleeve, and the other end is fixedly set. The elastic force of the second elastic element is greater than that of the first elastic element.

2. The clamp according to claim 1, characterized in that, The clamping base has multiple openings around its circumference, and the clamping piece is embedded in the opening.

3. The clamp according to claim 2, characterized in that, The clamping seat is provided with a first annular groove; The clamping piece has a groove on the side near the axis of the clamping seat; It also includes a retaining ring, which engages simultaneously with the first annular groove and the recess.

4. The clamp according to claim 3, characterized in that, The upper part of the clamping piece has an inclined surface on the side away from the axis of the clamping seat, and the inclined surface is inclined from bottom to top in the direction away from the axis of the clamping seat.

5. The clamp according to any one of claims 1-4, characterized in that, The lower part of the clip has an arc-shaped surface, and the bottom of the arc-shaped surface has an anti-detachment part; The first elastic element is a first spring, with one end of the first spring abutting the bottom of the receiving cavity and the other end abutting the arc-shaped surface.

6. The clamp according to claim 1, characterized in that, The second elastic element is a second spring; the lower part of the clamping seat is provided with a second annular groove, and the second annular groove is engaged with an elastic sheet; One end of the second spring abuts against the elastic sheet, and the other end abuts against the end of the sleeve.

7. A cocoon-cutting machine, characterized in that, Includes the gripper as described in any one of claims 1-6; It also includes a control system, a frame, and a turntable rotatably connected to the frame; a plurality of grippers are arranged around the circumference of the turntable, and the grippers are rotatably connected to the turntable; The frame is also provided with a cutting assembly for cutting cocoons and a drive mechanism for driving the gripper to rotate relative to the turntable; when the gripper moves to a position corresponding to the cutting assembly, the drive mechanism acts on the gripper to drive the gripper to rotate. It also includes an opening component, which is fixedly connected to the frame and positioned outside the rotation path of the gripper; The control system is used to control the rotation of the turntable and the operation of the drive mechanism and opening component.

8. The cocoon-cutting machine according to claim 7, characterized in that, The cutting assembly includes a base fixedly connected to the frame, and a spring piece connected to the base at one end. The other end of the spring piece is connected to a blade holder, which holds the blade and suspends it outside the path of the blade holder as the turntable rotates. An elastic support is fixedly provided on the side of the tool holder away from the clamp, and the elastic support elastically abuts against the tool holder.

9. The cocoon-cutting machine according to claim 8, characterized in that, The turntable is arranged with multiple support seats around its circumference; the bottom of the gripper of the clamp is provided with a fixed shaft, the fixed shaft is sleeved with a bearing seat, and the fixed shaft is rotatably connected to the bearing seat; The bearing housing is fixedly connected to the support housing.

10. The cocoon-cutting machine according to claim 9, characterized in that, The fixed shaft is also sleeved with a first friction wheel, which abuts against the bearing seat and is fixedly connected to the fixed shaft; The drive mechanism includes a motor fixedly connected to the frame and a second friction wheel connected to the output end of the motor.

11. The cocoon-cutting machine according to claim 10, characterized in that, The frame includes a first side plate and a second side plate, which are connected to the frame of the frame via a lead screw. The lead screw is provided with a plurality of nuts, which limit the distance between the first side plate and the second side plate. The turntable is rotatably connected to the first side plate.

12. The cocoon-cutting machine according to any one of claims 7-11, characterized in that, It also includes the top cocoon component; The top cocoon assembly includes a telescopic drive component that is fixedly installed, and a top rod that is correspondingly installed to the telescopic drive component; The clamping base of the clamp is provided with a through hole at the bottom, the push rod passes through the through hole, and the two ends of the push rod are provided with a second anti-detachment part with a diameter larger than the through hole; A third spring is sleeved on the side of the push rod near the telescopic drive member. One end of the third spring abuts against the clamping seat, and the other end abuts against the second anti-disengagement part of the push rod.

Images