Full-automatic packaging equipment for cotton swabs

Abstract

The full-automatic packaging equipment comprises a rack, a rotary transfer mechanism, a bag body opening mechanism and a bagging mechanism, cotton swabs are conveyed through a conveying chain, the tail end of the conveying chain is in butt joint with the rotary transfer mechanism for transferring, a plurality of transfer grooves are formed in the periphery of the rotary transfer mechanism, and a material receiving piece is arranged below the rotary transfer mechanism; the rotary transfer mechanism rotates intermittently, and the plurality of cotton swabs on the conveying chain are transferred to the rotary transfer mechanism by the transfer groove; the blanking interval time is prolonged, sufficient working time is provided for other structures, meanwhile, the butt joint piece is sleeved with the bag body, the butt joint piece is sleeved with the self-sealing strip, and the influence of the self-sealing strip on bagging is avoided.

Description

Technical Field

[0001] The present invention relates to the field of packaging equipment, and particularly to a fully automatic packaging equipment for cotton swabs. Background Art

[0002] Current cotton swabs are packaged using self-sealing bags. Generally, for bags without self-sealing strips, an opening is made. The cotton swabs are loaded into the bag through the opening at the tail of the bag body, and then heat-sealed. When the current packaging equipment transfers the cotton swabs to the receiving trough, the transfer wheel and the conveying chain have the same conveying speed. This results in a relatively high rotational speed of the transfer wheel, so the blanking interval time of the transfer wheel is short. When pushing the cotton swabs in the receiving trough into the bag body or switching the receiving trough during the blanking process, the time left for the pushing component to push the material or replace the receiving trough is relatively short, which easily leads to equipment operation failures and frequent shutdowns for maintenance.

[0003] Previously, the end of the packaging tape without a self-sealing strip was used for sealing. In this way, when loading the bag, there is no self-sealing strip on the inner wall of the bag to block, so it does not affect loading. When opening the end of the bag body with a self-sealing strip, during loading, the self-sealing strip will block the loading of the cotton swabs. Summary of the Invention

[0004] In view of the above deficiencies of the prior art, a fully automatic packaging equipment for cotton swabs is proposed. Without affecting the conveying of cotton swabs by the conveying chain, the blanking interval time is extended, giving sufficient working time to other structures. At the same time, the bag body is sleeved on the docking member, and the self-sealing strip is sleeved on the docking member, avoiding the influence of the self-sealing strip on bag loading.

[0005] To achieve the above object, the solution of the present invention is: a fully automatic packaging equipment for cotton swabs, including a frame, a rotary transfer mechanism, a bag opening mechanism, and a bag loading mechanism. An installation plate is provided on the frame. The rotary transfer mechanism and the bag loading mechanism are respectively provided on the back and front of the installation plate, and the bag opening mechanism is provided on the installation plate and the bag opening mechanism and the bag loading mechanism are located on the same side of the installation plate; The conveying chain conveys cotton swabs. A rotary transfer mechanism for transfer is docked at the tail end of the conveying chain. A plurality of transfer slots are provided on the outer periphery of the rotary transfer mechanism. A receiving member is provided below the rotary transfer mechanism. The rotary transfer mechanism rotates intermittently. Each time the rotary transfer mechanism rotates, the transfer slots transfer multiple cotton swabs on the conveying chain to the rotary transfer mechanism; The bag loading mechanism includes a docking member. The hollow docking member is provided on the installation plate. The bag body is opened by the bag opening mechanism and sleeved on the docking member. The docking member is docked with the receiving member. The cotton swabs in the receiving member pass through the docking member for bag loading. A pushing member capable of lifting is provided at the end of the receiving member away from the docking.

[0006] Preferably, the rotating intermediate mechanism includes a rotating wheel and a limiting plate. There are multiple groups of rotating wheels arranged side by side, and the multiple groups of rotating wheels rotate intermittently. Each rotating wheel is provided with transfer slots distributed in an annular array. A limiting plate is arranged between the multiple groups of rotating wheels, and an arc-shaped slot is formed in the limiting plate. One end of the arc-shaped slot is located above the cotton swabs on the conveying chain. The inner wall of the arc-shaped slot is a spiral line gradually approaching the center of the rotating wheel, and the end of the bottom of the arc-shaped slot is located directly above the receiving part.

[0007] Preferably, the transfer slot is an inclined slot, and the inclination direction of the inclined slot is opposite to the rotation direction of the rotating wheel.

[0008] Preferably, the receiving part is two groups of receiving slots arranged side by side. A translation component is arranged between each receiving slot and the frame, and the receiving slots take turns receiving materials through the translation component. When the receiving slot is docked with the docking part, a pressing plate capable of lifting is arranged above the receiving slot.

[0009] Preferably, the bag opening mechanism includes a self-sealing strip opening component and a bagging opening component. The self-sealing strip opening component and the bagging opening component are arranged side by side. The bag unfolded by the self-sealing strip opening component is clamped and taken to the bagging opening component for secondary unfolding, and the bagging opening component slews the bag on the docking part.

[0010] Preferably, the bagging opening component includes a bagging opening module, a bag slewing component, and an elastic return component. The bag slewing component includes a frame and a spreading piece. A first telescopic component is arranged between the frame and the mounting plate. When bagging, the docking part passes through the frame, and two upper and lower spreading pieces pass through the frame and the spreading pieces protrude from the frame to press the inner side of the bag. An activity seat is arranged between the frame and the mounting plate, and a cylinder is arranged between the activity seat and the frame. Two upper and lower sealing plates are mounted on the back of the frame, and the sealing plates are slidably connected to the activity seat, and the sealing plates are fixed to the spreading pieces. A second telescopic component is arranged between each sealing plate and the activity seat; the bagging opening module is divided into an upper negative pressure lifting plate and a lower negative pressure lifting plate. The lower negative pressure lifting plate is mounted on the front of the frame. A two-axis moving platform is arranged between the upper negative pressure lifting plate and the mounting plate. The translation and lifting are realized through the two-axis moving platform. A sliding component is arranged between the two-axis moving platform and the upper negative pressure lifting plate, and the upper negative pressure lifting plate moves towards the mounting plate through the sliding component. An elastic return component is mounted on the two-axis moving platform and the upper negative pressure lifting plate, and the upper negative pressure lifting plate is separated from the mounting plate through the elastic return component.

[0011] Preferably, the self-sealing strip opening assembly includes an opening piece, an opening cylinder and a bottom adsorption assembly, wherein the opening piece is divided into two pieces and the two opening pieces are arranged up and down, a movable seat is installed on the mounting plate by sliding cooperation, and a third telescopic assembly is arranged between the movable seat and the mounting plate, wherein one opening piece is connected to the movable seat by an opening cylinder, and the other opening piece is connected to the movable seat, and a bottom adsorption assembly is arranged on one side of the opening piece, and the bottom adsorption assembly can be raised and lowered. When the upper negative pressure lifting plate moves to above the bottom adsorption assembly, the bag opening of the front section of the self-sealing strip of the bag body is opened by the upper negative pressure lifting plate and the bottom adsorption assembly.

[0012] Preferably, a bag-equal-distance conveying assembly is provided below one side of the bag filling mechanism and the bag opening mechanism, wherein the bag-equal-distance conveying includes a conveying chain and a placement box, wherein a conveying chain driven by a sprocket is provided on the frame, a placement box is installed on the conveying chain, and the bottom of the placement box is hollowed out, and a temporary storage frame capable of translation is provided on one side of the bottom adsorption assembly, the temporary storage frame is a U-shaped frame, and an upward-extending limit baffle is provided on the edge of the temporary storage frame, and an upward-lifting lifting pallet is provided below the temporary storage frame, and the lifting pallet is also located below the placement box, and the bag in the placement box is lifted onto the temporary storage frame by the lifting pallet.

[0013] Preferably, a bag stacking mechanism is provided on one side of the bag-equally-spaced conveying assembly, and the bag stacking mechanism includes a placement rack, a conveyor belt and a negative pressure transfer assembly, wherein two groups of conveyor belts are provided on the placement rack, a baffle is provided at the tail end of each group of conveyor belts, and a negative pressure transfer assembly is provided above the two groups of conveyor belts. The transfer of bags on the conveyor belt is achieved through the negative pressure transfer assembly, and a negative pressure transfer assembly is also provided at the tail end of the conveyor belt and the bag-equally-spaced conveying assembly to transfer the bags on the conveyor belt to the placement box.

[0014] Preferably, a coaxial spacer ring is installed on one side of the rotating transfer mechanism, and spacer bars arranged at equal intervals are installed on the spacer ring. The position and number of the spacer bars are consistent with the transfer slot. A photoelectric gate is provided on one side of the spacer ring, and the spacer bars pass through the photoelectric gate. When the spacer bars are located between the photoelectric gates, the rotating transfer mechanism stops rotating.

[0015] Preferably, a cotton swab replenishing mechanism is provided at the head end of the conveyor chain, and the cotton swab replenishing mechanism includes a cotton swab conveying assembly and a cotton swab replenishing wheel. A coaxial conveying wheel is installed on the cotton swab conveying assembly, and a cotton swab replenishing wheel is provided between the cotton swab replenishing wheel and the conveyor chain. The cotton swab replenishing wheel is synchronized with the conveyor chain, and a detection optical fiber is provided on the periphery of the conveyor wheel. When the detection optical fiber detects the presence of a cotton swab, the cotton swab replenishing wheel rotates synchronously with the conveying wheel. When the detection optical fiber does not detect the presence of a cotton swab, the cotton swab replenishing wheel stops rotating.

[0016] Compared with the prior art, the advantages of the present invention are: 1. Extend the interval time of blanking to give sufficient working time to other structures. At the same time, the bag body is sleeved on the docking part, and the self-sealing strip is sleeved on the docking part to avoid the influence of the self-sealing strip on bagging.

[0017] 2. Before the bag opening for bagging, open the self-sealing strip of the bag body, and open it again during bagging to solve the problem that the self-sealing strip of the bag body is difficult to open. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a top view of the present invention.

[0019] Figure 2 It is a three-dimensional view of the present invention.

[0020] Figure 3 It is a schematic diagram of the present invention with the bag body stacking mechanism removed.

[0021] Figure 4 It is a schematic diagram of the present invention with the equally spaced conveying component of the bag body removed.

[0022] Figure 5 It is a schematic diagram of the bag body opening mechanism of the present invention.

[0023] Figure 6 It is a partial view of the bag body opening mechanism of the present invention.

[0024] Figure 7 It is a schematic diagram of the self-sealing strip opening component of the present invention.

[0025] Figure 8 It is a schematic diagram of the bagging opening component of the present invention.

[0026] Figure 9 It is a partial view of the bagging opening component of the present invention.

[0027] Figure 10 It is a schematic diagram of the rotary transfer mechanism and the conveyor chain of the present invention.

[0028] Figure 11 It is a schematic diagram of the position of the rotary wheel and the conveyor chain of the present invention.

[0029] Figure 12 It is a schematic diagram of the position of the receiving chute of the present invention.

[0030] Figure 13 It is a schematic diagram of the translation component and the receiving chute of the present invention.

[0031] Figure 14 It is a cross-sectional view of the bagging opening component of the present invention.

[0032] Figure 15 It is a rear view schematic diagram of the bagging opening component of the present invention.

[0033] Figure 16 This is a top view of the rotating transfer mechanism of the present invention.

[0034] Figure 17 This is a top view of the supplementary signature mechanism and the conveying chain of the present invention.

[0035] Figure 18 This is a front view of the supplementary signature mechanism and the conveying chain of the present invention.

[0036] Among them, 1. Frame, 2. Mounting plate, 3. Rotating transfer mechanism, 4. Rotating wheel, 5. Transfer groove, 6. Limiting plate, 7. Arc groove, 8. Spacer ring, 9. Spacer bar, 10. Photoelectric door, 11. Bag opening mechanism, 12. Self-sealing strip opening assembly, 13. Opening piece, 14. Opening cylinder, 15. Bottom adsorption assembly, 16. Third telescopic assembly, 17. Moving seat, 18. Bag loading opening assembly, 19. Bag loading opening module, 20. Upper negative pressure lifting plate, 21. Lower negative pressure lifting plate, 22. Two-axis moving platform, 23. Bag sleeving assembly, 24. Frame, 25. Opening piece, 26. First telescopic assembly, 27. Elastic return assembly, 28. Movable seat, 29. Sealing plate, 30. Second telescopic assembly, 31. Sliding assembly, 32. Bag loading mechanism, 33. Docking piece, 34. Conveying chain, 35. Material receiving piece, 36. Material receiving groove, 37. Translation assembly, 38. Pressing plate, 39. Pushing piece, 40. Bag equal-spacing conveying assembly, 41. Conveying chain, 42. Placing box, 43. Temporary storage frame, 44. Limiting baffle, 45. Lifting support plate, 46. Bag stacking mechanism, 47. Placing rack, 48. Conveyor belt, 49. Negative pressure transfer assembly, 50. Baffle, 51. Conveying assembly, 52. Sealing assembly, 53. Supplementary signature mechanism, 54. Cotton swab conveying assembly, 55. Conveying wheel, 56. Supplementary signature wheel, 57. Detection optical fiber. Detailed implementation manners

[0037] Now, in combination with the accompanying drawings, the present invention will be further described.

[0038] As Figure 1-18 shown, a fully automatic packaging device for cotton swabs includes a frame 1, a rotating transfer mechanism 3, a bag opening mechanism 11 and a bag loading mechanism 32. A horizontally arranged mounting plate 2 is installed on the frame 1 by means of bolt fastening, and the mounting plate 2 extends upward. The rotating transfer mechanism 3 and the bag loading mechanism 32 are respectively arranged on the back and front of the mounting plate 2. The bag opening mechanism 11 is arranged on the front of the mounting plate 2, and the bag opening mechanism 11 and the bag loading mechanism 32 are located on the same side of the mounting plate 2. The cotton swabs are transferred and stacked on the back of the mounting plate 2, and the bag opening, bag sleeving and bag loading are carried out on the front of the mounting plate 2; The conveying chain 34 conveys cotton swabs. At the end of the conveying chain 34, there is a rotating transfer mechanism 3 for transfer. Below the rotating transfer mechanism 3, there is a receiving part 35. The rotating transfer mechanism 3 rotates intermittently. The rotating transfer mechanism 3 is installed on the rotating shaft by bolts. One end of the rotating shaft is fixedly installed with a stepping motor by bolts. The rotating shaft and the rotating transfer mechanism 3 are driven by the stepping motor to rotate intermittently. The conveying chain 34 is sleeved on two sprockets and the conveying chain 34 meshes with the sprockets. One of the sprockets is installed on the frame 1 through a bearing, and at the same time, this sprocket is fixed to the output shaft of the motor by bolts. The sprocket is driven by the motor to rotate at a constant speed. The other sprocket is installed on the rotating shaft through a bearing, and there is no transmission between the sprocket and the rotating shaft. On the conveying chain 34, there are multiple placing seats arranged side by side and fixed by bolts. On the top of the placing seat, there is a V-shaped groove for placing cotton swabs. Through the intermittent rotation of the rotating transfer mechanism 3, there are circumferentially arrayed transfer grooves 5 on the outer periphery of the rotating transfer mechanism 3. The cotton swabs on the conveying chain 34 are transferred into the transfer grooves 5 through the transfer grooves 5. The groove width of the transfer groove 5 is the width of multiple cotton swabs on the conveying chain 34. For example, if the rotating transfer mechanism 3 needs to transfer five cotton swabs each time it rotates, the groove width of the transfer groove 5 is the width of five cotton swabs on the conveying chain 34. At the same time, when the conveying chain 34 moves a distance equal to the width of five cotton swabs, the rotating transfer mechanism 3 rotates once. In this way, each time the rotating transfer mechanism 3 rotates, the transfer groove 5 transfers five cotton swabs. In this way, the discharge time interval of the rotating transfer mechanism 3 is five times the original. The cotton swabs on the rotating transfer mechanism 3 fall into the receiving part 35; The bagging mechanism 32 includes a docking part 33. The hollow docking part 33 is installed on the front of the mounting plate 2 by bolts. The docking pipe penetrates through the mounting plate 2 and docks with the receiving part 35. The bag body is opened by the bag body opening mechanism 11 and sleeved on the docking part 33. The cotton swabs in the receiving part 35 pass through the docking part 33 for bagging. There are two sets of docking parts 33, bag body opening mechanisms 11 and bagging mechanisms 32 in this application; At the end of the receiving part 35 far from the docking, there is a push part 39 that can be lifted. The receiving part 35 is a rectangular groove body, and the push part 39 is a rectangular block that fits the inner wall of the receiving part 35. A cylinder is fixed between the frame 1 and the push part 39 by bolts. By lifting the cylinder, the cotton swabs in the receiving part 35 are pushed forward, so that the cotton swabs pass through the docking part 33 for bagging. The inner wall of the docking part 33 also fits the outer wall of the push part 39. The bag body is directly sleeved on the docking part 33, and the self-sealing strip of the bag body is located on the outer wall of the docking part 33, so as to prevent the cotton swabs from touching the self-sealing strip during bagging.

[0039] The rotating intermediate mechanism includes a rotating wheel 4 and a limit plate 6. There are multiple groups of rotating wheels 4, and the multiple groups of rotating wheels 4 are arranged side by side. The multiple groups of rotating wheels 4 are spirally installed on the rotating shaft, and the rotating wheel 4 rotates coaxially with the rotating shaft. Since the rotating shaft is intermittently rotated by a stepping motor, the multiple groups of rotating wheels 4 are rotated intermittently. Each rotating wheel 4 is provided with transfer slots 5 distributed in an annular array. A limit plate 6 is arranged between the multiple groups of rotating wheels 4. The limit plate 6 is installed on the back surface of the mounting plate 2 by bolts. An arc-shaped slot 7 is opened on the limit plate 6. One end of the arc-shaped slot 7 is located above the cotton swabs on the conveying chain 34. The inner wall of the arc-shaped slot 7 is a spiral line gradually approaching the center of the rotating wheel 4. The bottom end of the arc-shaped slot 7 is located directly above the receiving part 35. When transferring, the transfer slot 5 first lifts the cotton swabs, so that the cotton swabs are separated from the conveying chain 34, and the cotton swabs are caught in the transfer slot 5. The transfer slot 5 rotates through the rotating wheel 4. In this way, the transfer slot 5 rotates clockwise. The arc-shaped slot 7 can prevent the cotton swabs from falling out of the transfer slot 5. Through the spiral-shaped slot of the arc-shaped slot 7, when the transfer slot 5 rotates clockwise, the cavity formed by the arc-shaped slot 7 and the transfer slot 5 shrinks, so that the cotton swabs can be gathered. When the cotton swabs are conveyed through the transfer slot 5, it can prevent the cotton swabs from jumping and affecting subsequent unloading.

[0040] On the rotating shaft on one side of the rotating intermediate mechanism 3, a coaxial spacer ring 8 is installed by bolting. On the spacer ring 8, equally spaced spacer bars 9 are installed by welding. The spacer bars 9 are distributed in an annular array on the spacer ring 8. The positions and quantities of the spacer bars 9 are the same as those of the transfer slots 5. On one side of the spacer ring 8 on the frame 1, a photoelectric gate 10 is installed by bolting. The photoelectric gate 11 is the EVOPTICS infrared opposed type sensor. The spacer bar 9 passes through the photoelectric gate 10. When the spacer bar 9 is located between the photoelectric gates 10, the rotating intermediate mechanism 3 stops rotating. The photoelectric gate 10 is connected to the input end of the PLC controller. The stepping motor controlling the rotating shaft is connected to the output end of the PLC controller through an encoder. When the spacer bar 9 rotates to between the photoelectric gates 10, the light conduction of the photoelectric gate 10 is blocked. In this way, the photoelectric gate 10 transmits the disconnected signal to the PLC controller. The PLC controller controls the stepping motor to stop working through the encoder. Then the PLC controller delays for a few seconds (the delay time is the distance of the spacing between five cotton swabs conveyed by the conveying chain 34). The PLC controller controls the stepping motor to drive the rotating wheel 4 to rotate. When the next spacer bar 9 moves to the position of the photoelectric gate 10, the rotating wheel 4 stops rotating. In this way, the intermittent rotation of the rotating wheel 4 is realized.

[0041] The transfer slot 5 is an inclined slot, and the inclined direction of the inclined slot is opposite to the rotating direction of the rotating wheel 4. When working, it is convenient for multiple cotton swabs on the conveying chain 34 to be conveyed into the transfer slot 5. The cotton swabs are lifted and separated from the conveying chain 34 by the rotation of the transfer slot 5, so that the cotton swabs are conveyed in the transfer slot 5.

[0042] The material receiving part 35 consists of two sets of material receiving grooves 36 arranged side by side left and right. Between each material receiving groove 36 and the frame 1, a translation assembly 37 is fixed by means of bolt fastening. The translation assembly 37 is a guide rail, a sliding seat and a cylinder. A guide rail is fixed on the vehicle frame by means of bolt fastening. Two sets of sliding seats are clamped on the guide rail. The bottom of the material receiving groove 36 is installed with a sliding seat by bolts, so as to realize the sliding of the material receiving groove 36. Between the bottom of each sliding seat and the frame 1, a cylinder is arranged, and the left and right translation of the sliding seat is realized through the cylinder. The material receiving grooves 36 take turns receiving materials through the translation assembly 37. When the material receiving groove 36 is docked with the docking part 33, a pressing plate 38 capable of lifting is arranged above the material receiving groove 36. The top of the pressing plate 38 is installed with a cylinder by means of bolt fastening. The piston rod of the cylinder is installed on the frame 1 by bolts, and the lifting of the pressing plate 38 is realized through the telescopic cylinder; the material receiving groove 36 on the right side moves to directly below the rotating wheel 4, and the end of the arc-shaped groove 7 is also directly above this material receiving groove 36. When the cotton swab breaks away from the blockage of the arc-shaped groove 7, the closely arranged cotton swabs in the transfer groove 5 fall into the material receiving groove 36. When the specified number of cotton swabs is fed into the material receiving groove 36, the material receiving groove 36 moves to the right through the cylinder and is docked with the docking part 33 on the right side. At the same time, the material receiving groove 36 on the left side moves to directly below the material receiving wheel. Due to the extension of the feeding time interval, sufficient time is left for the switching of the material receiving groove 36. Through the downward pressing of the pressing plate 38, the pushing part 39 pushes forward, so that the cotton swab passes through the material receiving part 35 for bagging. The downward pressing of the pressing plate 38 is to prevent the cotton swab from bouncing up and down during pushing, and to prevent the cotton swab from not extending into the material receiving part 35 and pressing against the pushing part 39, which affects bagging.

[0043] The bag body opening mechanism 11 includes a self-sealing strip opening assembly 12 and a bagging opening assembly 18. Among them, the self-sealing strip opening assembly 12 and the bagging opening assembly 18 are arranged side by side. The bag body unfolded by the self-sealing strip opening assembly 12 is clamped and taken to the bagging opening assembly 18 for secondary opening, and the bagging opening assembly 18 sleeves the bag body on the docking part 33; since the bag body opening assembly adsorbs the outer wall of the bag body by negative pressure, and then the bag body opening assembly separates to open the bag body. When there is a self-sealing strip in the bag body, the method of opening the outer wall by negative pressure adsorption cannot open the bag mouth of each bag body. In this application, before the bagging opening assembly 18 opens the bag body, a self-sealing strip opening assembly 12 is provided. Through the self-sealing strip opening assembly 12, the self-sealing strip that closes the bag body is opened, and then the bag body is transported to the bagging opening assembly 18, and the bag body is unfolded by the method of adsorbing the outer wall by negative pressure, thus solving the problem of the difficulty in opening the self-sealing strip of the bag body.

[0044] The bag-opening assembly 18 includes a bag-opening module 19, a bag-sheathing component 23 and an elastic return component 27. The bag-sheathing component 23 includes a frame 24 and an opening piece 25. A first telescopic component 26, which is a cylinder, is arranged between the frame 24 and the mounting plate 2. The frame 24 is also a rectangular frame 24 with a hollow center. The first telescopic component 26 is mounted on the frame 24 and the mounting plate 2 by means of bolts. The frame 24 is moved closer to or away from the mounting plate 2 by the telescopic movement of the first telescopic component 26. When bagging, the docking part 33 passes through the frame 24 from the hollow area of the frame 24. Two upper and lower opening pieces 25 pass through the frame 24, and the opening pieces 25 protrude from the frame 24 to press against the inner side of the bag body. A vertical movable seat 28 is arranged between the frame 24 and the mounting plate 2. A cylinder is mounted between the movable seat 28 and the frame 24 by means of bolts. The movable seat 28 is moved closer to or away from the frame 24 by the cylinder. Two sealing plates 29 are arranged vertically on the back of the frame 24. The sealing plates 29 are slidably connected to the movable seat 28. The movable seat 28 is a vertical track. Two translation seats that move up and down on the vertical track are clamped on the vertical track. The sealing plates 29 are fixed to the corresponding translation seats by means of bolts. The opening and closing of the sealing plates 29 are realized through the translation seats. The sealing plates 29 and the opening pieces 25 are fixed by welding. When the sealing plates 29 are closed, the opening pieces 25 are in contact; when the sealing plates 29 are opened, the opening pieces 25 are separated. A second telescopic component 30, which is also a cylinder, is arranged between each sealing plate 29 and the movable seat 28. The cylinder block and the piston rod of the cylinder are respectively fixed to the translation seat and the vertical track by bolts, thus realizing the opening and closing of the sealing plates 29;The bag-opening module 19 is divided into an upper negative-pressure lifting plate 20 and a lower negative-pressure lifting plate 21. Negative-pressure suction heads are installed on the bottom surface of the upper negative-pressure lifting plate 20 and the top surface of the lower negative-pressure lifting plate 21 by means of bolt fastening. The lower negative-pressure lifting plate 21 is installed on the front surface of the frame 24 by means of bolt fastening. A two-axis moving platform 22 is arranged between the upper negative-pressure lifting plate 20 and the mounting plate 2. The left-right translation and up-down lifting are realized through the two-axis moving platform 22. The two-axis moving platform 22 includes a transverse slideway and a moving table. The transverse slideway is installed on the mounting plate 2 by bolts. A moving table that moves left and right on the transverse slideway is clamped on the transverse slideway. A vertically lifting air cylinder is installed on the moving table by means of bolt fastening. An air cylinder for left-right translation is installed between the moving table and the mounting plate 2 by means of bolt fastening. A sliding component 31 is arranged between the two-axis moving platform 22 and the upper negative-pressure lifting plate 20. The bottom of the sliding component 31 is installed on the upper negative-pressure lifting plate 20 by bolts. The upper negative-pressure lifting plate 20 is moved towards the mounting plate 2 through the sliding component 31. An elastic return component 27 is installed on the upper negative-pressure lifting plate 20 and the two-axis moving platform 22. The upper negative-pressure lifting plate 20 is made to move away from the mounting plate 2 through the elastic return component 27. The sliding component 31 is a slide rail. The slide rail is installed on the upper negative-pressure lifting plate 20. A slider that moves back and forth on the slide rail is clamped on the slide rail. The slider is fastened to the lifting air cylinder on the two-axis moving platform 22 by bolts. The elastic return component 27 is a rubber band. The two ends of the rubber band are respectively tied to the upper negative-pressure lifting plate 20 and the slider; when bagging, the upper negative-pressure lifting plate 20 moves the bag body with the self-sealing strip already opened to directly above the lower negative-pressure lifting plate 21. The bag body is opened by the upper negative-pressure lifting plate 20 and the lower negative-pressure lifting plate 21. Then, the second telescopic component 30 retracts, the sealing plate 29 moves towards the frame 24 and the sealing plate 29 is in close contact with the frame 24. Correspondingly, the opening piece 25 extends out of the frame 24 and extends into the bag body. The opening piece 25 extends between the self-sealing strips. Then, the sealing plate 29 opens and at the same time the opening piece 25 also opens. The bag body is pressed against the upper negative-pressure lifting plate 20 by the opening piece 25 located at the top. When the opening piece 25 moves backward, the upper negative-pressure lifting plate 20 also moves backward following the opening piece 25, and the bag opening correspondingly opens. The frame 24 moves backward under the action of the first telescopic component 26 and fits with the mounting plate 2. In this way, the bag body is sleeved on the docking part 33. Since the opening piece 25 opens the self-sealing strip in advance for bagging, it is avoided that the docking part 33 abuts against the self-sealing strip during bagging; after bagging is completed, the pushing part 39 pushes forward and pushes the cotton swabs into the bag body. Then, the frame 24 moves forward to return to its original position. At the same time, the sealing plate 29 closes to seal the docking part 33. At the same time, the opening piece 25 closes. Then, the sealing plate 29 moves away from the frame 24, and the opening piece 25 retracts to make way for the opening of the next bag body.;

[0045] The self-sealing strip opening assembly 12 includes an opening piece 13, an opening cylinder 14 and a bottom adsorption assembly 15. The opening piece 13 is divided into two pieces, and the two opening pieces 13 are arranged up and down. A moving seat 17 is installed on the mounting plate 2 in a sliding fit manner. A longitudinally arranged guide rail is installed on the mounting plate 2 by means of bolt fastening. A guide block that moves back and forth on the guide rail is clamped on the guide rail. A third telescopic assembly 16 is installed between the guide rail and the guide block by means of bolt fastening. The movement of the guide block is realized through the third telescopic assembly 16. One of the opening pieces 13 at the top is connected to the opening cylinder 14 by means of bolt fastening with the moving seat 17. The lifting of the top opening piece 13 is realized through the opening cylinder 14. The bottom opening piece 13 is connected to the moving seat 17 by means of bolt fastening. The opening and closing of the opening piece 13 are realized through the opening cylinder 14. A bottom adsorption assembly 15 is arranged on the front side of the opening piece 13 on the frame 1. A cylinder is installed between the bottom adsorption assembly 15 and the frame 1 by means of bolt fastening. The lifting of the bottom adsorption assembly 15 is carried out through the cylinder. The bottom adsorption assembly 15 can be lifted. When the upper negative pressure lifting plate 20 moves above the bottom adsorption assembly 15, the bag mouth at the front section of the self-sealing strip of the bag is opened by the upper negative pressure lifting plate 20 and the bottom adsorption assembly 15. The bottom adsorption assembly 15 is a negative pressure adsorption head installed on the top of the flat plate by means of bolt fastening. During operation, the bag is adsorbed by the bottom adsorption assembly 15. The self-sealing strip to one end of the bag mouth is opened by the upper negative pressure lifting plate 20 and the bottom adsorption assembly 15. The third telescopic assembly 16 jacks up, so that the opening piece 13 jacks up into the bag. In this way, the opening piece 13 presses the bag on the upper negative pressure lifting plate 20 and the bottom adsorption assembly 15 respectively. Then the upper negative pressure lifting plate 20, the bottom adsorption assembly 15 and the opening piece 13 open, so as to open the self-sealing strip. Then the opening piece 13 closes and retracts, and the bottom adsorption assembly 15 releases the negative pressure. The bag is adsorbed by the upper negative pressure lifting plate 20 and conveyed below the lower negative pressure lifting plate 21 of the conveyor belt 48.

[0046] A bag-equal-spacing conveying assembly 40 is provided below the front side of the bag filling mechanism 32 and the bag opening mechanism 11, and the bag-equal-spacing conveying assembly 40 is installed on the frame 1, wherein the bag-equal-spacing conveying includes a conveying chain 41 and a placement box 42, wherein a sprocket is installed on the frame 1 through a bearing and a bearing seat, a conveying chain 41 is sleeved on the sprocket, and the sprocket is fixed to the output shaft of the motor by bolting, a placement box 42 is installed on the conveying chain 41 by bolting, and the bottom of the placement box 42 is hollowed out, and a temporary storage frame 43 capable of translation is provided on the front side frame 1 of the bottom adsorption assembly 15, and the temporary storage frame 43 is a U-shaped frame and the notch of the temporary storage frame faces the bottom adsorption assembly 15, and an upward extending limit baffle 5044 is fixed on the edge of the temporary frame 43 by welding, so that the bag can be taken out from the left and right sides and the front side. The bag is lifted from the temporary storage frame 43 and the rack 1 below the temporary storage frame 43 is provided with a lifting support plate 45 for lifting upward. The lifting support plate 45 is also located below the placement box 42. The bottom of the lifting support plate 45 is installed with a cylinder by bolt fastening. The cylinder body of the cylinder is installed on the rack 1 by bolts. The bag in the placement box 42 is lifted onto the temporary storage frame 43 by the lifting support plate 45. When the placement box 42 moves to the top of the temporary storage frame 43, the cylinder below the placement box 42 is lifted, so that the lifting support plate 45 lifts the bag into the temporary storage frame 43. The lifting support plate 45 contacts the negative pressure and moves downward, and the temporary storage frame 43 moves backward. One end of the bag is located above the bottom adsorption component 15. The bottom adsorption component 15 rises to adsorb the bottom of the bag, and then the self-sealing strip opens, and the temporary storage frame 43 returns to the top of the placement box 42.

[0047] A bag stacking mechanism 46 is provided on the ground to the left of the bag uniform spacing conveying assembly 40. The bag stacking mechanism includes a placement rack 47, a conveyor belt 48 and a negative pressure transfer assembly 49, wherein two groups of conveyor belts 48 arranged in front and behind are arranged on the placement rack 47, and the conveyor belt 48 is transported by rollers driven by a motor, and a baffle 50 is provided at the tail end of each group of conveyor belts 48, which prevents the bag from continuing to move backward through the baffle 50. The baffle 50 is installed on the frame 1 by bolts, and a negative pressure transfer assembly 49 is provided above the two groups of conveyor belts 48. The negative pressure transfer assembly 49 is a negative pressure adsorption plate and a linear motor. The linear motor is installed on the placement rack 47 by bolts, and the top of the negative pressure adsorption plate is installed in the cylinder by bolt fastening, and the cylinder body of the cylinder is fixed to the mover of the linear motor by bolt fastening. The transfer of the bags on the conveyor belt 48 is realized by the negative pressure transfer assembly 49, and a negative pressure transfer assembly 49 is also provided at the tail end of the conveyor belt 48 and the conveying assembly 40 with equal spacing between the bags to transfer the bags on the conveyor belt 48 to the placement box 42, thereby realizing bag transportation.

[0048] A conveying assembly 51 is provided on the frame 1 below the docking member 33. The conveying assembly 51 has two sets and the two sets of conveying assemblies 51 are arranged longitudinally. The bags falling from the docking member 33 fall onto the conveying assembly 51 for conveying. The conveying assembly 51 conveys the bags forward. The conveying assembly 51 includes a rotating rod driven by a motor and a conveyor belt 48. Multiple rows of conveyor belts 48 arranged side by side are provided on each conveying assembly 51. The conveyor belt 48 is sleeved on two conveying rods, and the conveyor belt 48 is conveyed by the conveying rods; A sealing assembly 52 is installed on the frame 1 at the tail end of the conveying assembly 51. The sealing assembly 52 includes an inclined support plate, a lifting plate and a pressing plate 38. Among them, a support plate with a downward inclination at the front end is installed on the frame 1. A lifting plate and a pressing plate 38 arranged front and back are provided above the support plate. A cylinder is fixed between the lifting plate and the frame 1 by bolts, and a cylinder is installed between the pressing plate 38 and the frame 1 by bolts. The lifting of the lifting plate and the pressing plate 38 is realized by two sets of cylinders. A hot pressing strip is bolted to the rear side of the pressing plate 38, and hot pressing sealing is carried out through the hot pressing strip. The self-sealing strip is pressed and closed by the pressing plate 38. When the bag needs to be unloaded from the support plate, the lifting plate rises.When the cotton swabs are being transported, after the defective cotton swabs on the transport chain 34 are removed, no replacement cotton swabs are added, resulting in a decrease in the number of cotton swabs in the bag. A replacement mechanism 53 is provided at the head end of the transport chain 34. The replacement mechanism 53 includes a cotton swab transport component 54 and a replacement wheel 56. The cotton swab transport component 54 transports the cotton swabs. The cotton swab transport component 54 is a chain that is sleeved on two sprockets. The sprockets are installed on the mounting plate through bearings, and the sprockets are fixed to the output shaft of the stepping motor. The chain is used to transport the cotton swabs at a uniform speed through the sprockets. Placement grooves for placing cotton swabs are fixed to the chain by bolts and are arranged at equal intervals. The cotton swabs are placed in the placement grooves and are transported by the chain. The defective cotton swabs are selected on the cotton swab transport component 54. A coaxial transport wheel 55 is installed on the left sprocket of the cotton swab transport component 54 by bolting. Grooves for engaging single cotton swabs are formed on the transport wheel 55, and the grooves are arranged in a circular array on the transport wheel 55. The cotton swabs on the cotton swab transport component 54 are engaged in the grooves of the transport wheel 55. The replacement wheel 56 is installed on the mounting plate between the replacement wheel 56 and the transport chain 34 through a bearing. Grooves for engaging single cotton swabs are also formed on the replacement wheel 56, and the grooves are arranged in a circular array on the replacement wheel 56. The replacement wheel 56 and the transport wheel 55 partially overlap. When the replacement wheel 56 rotates, the cotton swabs on the transport wheel 55 are engaged in the grooves of the replacement wheel 56. When there is no cotton swab engaged on the transport wheel 55 due to the removal of cotton swabs, the replacement wheel 56 stops working. The replacement wheel 56 is synchronized with the transport chain 34 (the linear speeds are the same). Transport baffles are provided on the outer peripheries of the replacement wheel 56 and the transport wheel 55. The transport baffles are fixed to the mounting plate by bolts. Grooves for the replacement wheel 56 and the transport wheel 55 to be inserted are formed on the transport baffles to prevent the cotton swabs from falling out of the grooves of the replacement wheel 56 and the transport wheel 55 during transportation. A detection optical fiber 57 is provided on the outer periphery of the transport wheel 55. The detection optical fiber 57 is installed on the transport baffle by bolts. The detection optical fiber (reflective optical fiber SFRC4-110) faces the transport wheel 55 and the cotton swabs in the grooves of the transport wheel 55. When the cotton swabs at this position rotate to the next station, the cotton swabs are transported by the replacement wheel 56. When the detection optical fiber 57 detects a cotton swab, the detection optical fiber 57 feeds back to the input end of the PLC controller. The output end of the PLC controller is connected to an encoder, and the encoder controls the rotation of the stepping motor that drives the replacement wheel 56 to rotate. The replacement wheel 56 and the transport wheel 55 rotate synchronously. When the detection optical fiber 57 does not detect a cotton swab, the replacement wheel 56 stops rotating, ensuring that each placement groove on the transport chain 34 contains a cotton swab and the number of cotton swabs in the bag is consistent.

[0049] The cylinders of the present application are all connected to the solenoid valves. The solenoid valves are connected to the output end of the PLC controller. The on-off of the solenoid valves is controlled by the PLC controller. The air inlet end of the solenoid valves is connected to the air compressor. The motors and the stepping motors of the present application are both connected to the PLC controller through encoders. The connections of the above-mentioned cylinders, motors and PLCs are all prior arts.

Claims

1. A fully automatic packaging device for cotton swabs, comprising a frame, a rotary transfer mechanism, a bag opening mechanism and a bagging mechanism. An installation plate is provided on the frame. The rotary transfer mechanism and the bagging mechanism are respectively arranged on the back and front of the installation plate. The bag opening mechanism is arranged on the installation plate and the bag opening mechanism and the bagging mechanism are located on the same side of the installation plate; The conveying chain conveys cotton swabs, and a rotary transfer mechanism for transfer is docked at the tail end of the conveying chain. A plurality of transfer grooves are arranged on the outer periphery of the rotary transfer mechanism, and a material receiving member is arranged below the rotary transfer mechanism. It is characterized in that, The rotary transfer mechanism rotates intermittently. Each time the rotary transfer mechanism rotates, the transfer slots on it transfer multiple cotton swabs on the conveying chain to the rotary transfer mechanism; The bagging mechanism includes a docking member. The hollow docking member is arranged on the installation plate. The bag is opened by the bag opening mechanism and sleeved on the docking member. The docking member is docked with the material receiving member. The cotton swabs in the material receiving member pass through the docking member for bagging. A pushing member capable of lifting is arranged at one end of the material receiving member away from the docking; 2. The fully automatic packaging equipment for a cotton swab according to claim 1, characterized in that, The rotary intermediate mechanism includes a rotary wheel and a limiting plate. There are multiple groups of rotary wheels and the multiple groups of rotary wheels are arranged side by side. The multiple groups of rotary wheels rotate intermittently. Each rotary wheel is provided with transfer slots distributed in an annular array. A limiting plate is arranged between the multiple groups of rotary wheels. An arc-shaped groove is opened on the limiting plate. One end of the arc-shaped groove is located above the cotton swabs on the conveying chain. The inner wall of the arc-shaped groove is a spiral line gradually approaching the center of the rotary wheel. The bottom end of the arc-shaped groove is located directly above the material receiving member; the transfer slot is an inclined slot and the inclination direction of the inclined slot is opposite to the rotation direction of the rotary wheel.

3. The fully automatic packaging equipment for a cotton swab according to claim 2, characterized in that, The material receiving member is two groups of receiving grooves arranged side by side. A translation assembly is arranged between each receiving groove and the frame. The receiving grooves take turns receiving materials through the translation assembly. When the receiving groove is docked with the docking member, a pressing plate capable of lifting is arranged above the receiving groove.

4. The fully automatic packaging equipment for a cotton swab according to claim 1 or 3, characterized in that, The bag opening mechanism includes a self-sealing strip opening assembly and a bagging opening assembly. The self-sealing strip opening assembly and the bagging opening assembly are arranged side by side. The bag unfolded by the self-sealing strip opening assembly is clamped and taken to the bagging opening assembly for secondary opening. The bagging opening assembly sleeves the bag on the docking member.

5. The fully automatic packaging equipment for a cotton swab according to claim 4, characterized in that, The bagging opening assembly includes a bagging opening module, a bag sleeving assembly and an elastic return assembly. The bag sleeving assembly includes a frame and an opening piece. A first telescopic assembly is arranged between the frame and the installation plate. When bagging, the docking member passes through the frame. Two upper and lower opening pieces pass through the frame and the opening pieces protrude from the frame to press the inner side of the bag. A movable seat is arranged between the frame and the installation plate. A cylinder is arranged between the movable seat and the frame. Two upper and lower sealing plates are installed on the back of the frame. The sealing plates are slidably connected with the movable seat. The sealing plates are fixed to the opening pieces. A second telescopic assembly is arranged between each sealing plate and the movable seat; the bagging opening module is divided into an upper negative pressure lifting plate and a lower negative pressure lifting plate. The lower negative pressure lifting plate is installed on the front of the frame. The upper negative pressure lifting plate and the installation plate are on a two-axis moving platform. Translation and lifting are realized through the two-axis moving platform. A sliding assembly is arranged between the two-axis moving platform and the upper negative pressure lifting plate. The upper negative pressure lifting plate moves towards the installation plate through the sliding assembly. An elastic return assembly is installed on the upper negative pressure lifting plate and the two-axis moving platform. The upper negative pressure lifting plate is moved away from the installation plate through the elastic return assembly.

6. The fully automatic packaging equipment for a cotton swab according to claim 5, characterized in that, The self-sealing strip opening assembly includes an opening piece, an opening cylinder and a bottom adsorption assembly, wherein the opening piece is divided into two pieces and the two opening pieces are arranged up and down, a movable seat is installed on the mounting plate by sliding cooperation, and a third telescopic assembly is arranged between the movable seat and the mounting plate, one of the opening pieces is connected to the movable seat by an opening cylinder, and the other opening piece is connected to the movable seat, and a bottom adsorption assembly is arranged on one side of the opening piece, and the bottom adsorption assembly can be lifted and lowered. When the upper negative pressure lifting plate moves to above the bottom adsorption assembly, the bag opening of the front section of the self-sealing strip of the bag is opened by the upper negative pressure lifting plate and the bottom adsorption assembly.

7. An automatic packaging device for cotton swabs according to claim 1, characterized in that, A bag-equal-distance conveying component is provided below one side of the bag filling mechanism and the bag opening mechanism, wherein the bag-equal-distance conveying includes a conveying chain and a placement box, wherein a conveying chain driven by a sprocket is provided on the frame, a placement box is installed on the conveying chain, and the bottom of the placement box is hollowed out, and a temporary storage frame capable of translation is provided on one side of the bottom adsorption component, and the temporary storage frame is a U-shaped frame, and an upward-extending limit baffle is provided on the edge of the temporary storage frame, and an upward-lifting lifting pallet is provided below the temporary storage frame, and the lifting pallet is also located below the placement box, and the bag in the placement box is lifted onto the temporary storage frame by the lifting pallet.

8. The fully automatic packaging equipment for a cotton swab according to claim 7, characterized in that, A bag stacking mechanism is provided on one side of the bag-equally-spaced conveying assembly. The bag stacking mechanism includes a placement rack, a conveyor belt and a negative pressure transfer assembly. Two groups of conveyor belts are provided on the placement rack. A baffle is provided at the tail end of each group of conveyor belts. A negative pressure transfer assembly is provided above the two groups of conveyor belts. The transfer of bags on the conveyor belt is achieved through the negative pressure transfer assembly. A negative pressure transfer assembly is also provided at the tail end of the conveyor belt and the bag-equally-spaced conveying assembly to transfer the bags on the conveyor belt to the placement box.

9. The full-automatic packaging device for a cotton swab according to claim 1, characterized in that, A coaxial spacer ring is installed on one side of the rotating transfer mechanism, and spacer bars are installed on the spacer ring at equal intervals. The position and number of the spacer bars are consistent with the transfer slot. A photoelectric gate is set on one side of the spacer ring, and the spacer bars pass through the photoelectric gate. When the spacer bars are located between the photoelectric gates, the rotating transfer mechanism stops rotating.

10. The fully automatic packaging equipment for a cotton swab according to claim 1, characterized in that, A cotton swab replenishing mechanism is provided at the head end of the conveyor chain, which includes a cotton swab conveying assembly and a cotton swab replenishing wheel. A coaxial conveying wheel is installed on the cotton swab conveying assembly, and a cotton swab replenishing wheel is provided between the cotton swab replenishing wheel and the conveyor chain. The cotton swab replenishing wheel is synchronized with the conveyor chain, and a detection optical fiber is provided on the periphery of the conveyor wheel. When the detection optical fiber detects the presence of a cotton swab, the cotton swab replenishing wheel rotates synchronously with the conveying wheel. When the detection optical fiber does not detect the presence of a cotton swab, the cotton swab replenishing wheel stops rotating.

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