Cap screwing machine with bidirectional adjusting type conveying device

Abstract

A cap screwing machine with a two-way adjusting type conveying device comprises the two-way adjusting type conveying device and a four-axis multi-specification cap screwing device, the two-way adjusting type conveying device comprises a conveyor fixedly installed on a rack, a guide rail is arranged on the portion, below the conveyor, of the rack, and transverse sliding blocks are arranged at the two ends of the guide rail; a movable seat is arranged between the corresponding transverse sliding blocks, a nut seat is arranged in the middle of the movable seat, a two-way threaded rod is connected between the nut seats at the two ends, and the four-axis multi-specification cap screwing device is installed over the bottle arranging and conveying mechanism through a vertical support and comprises a square frame body, four universal couplings and four cap screwing wheels. A motor is mounted on a top plate of the square frame body, a driving shaft of the motor is connected with a four-shaft speed reducer, and four universal couplings are connected with four output ends of the four-shaft speed reducer; the cap screwing machine has the advantages of being convenient and fast to adjust and operate and high in adjusting precision, meanwhile, the phenomenon that the bottle cap screwing force is too large can be avoided, and the cap screwing packaging quality can be improved.

Description

Technical Field

[0001] This utility model relates to the field of packaging machines, and in particular to a capping machine with a bidirectional adjustable conveying device. Background Technology

[0002] Automatic capping packaging machines are highly automated devices primarily used for sealing bottled products. These machines are commonly used in the food, beverage, pharmaceutical, and chemical industries to achieve efficient, fast, and precise capping of various bottles. The machine automatically feeds the bottles and caps to the working position, using photoelectric sensors and other technologies to detect their position and status, ensuring accuracy at every step. Based on set parameters, it applies appropriate pressure and rotation speed to the caps to achieve a perfect seal.

[0003] Current automatic capping and packaging machines typically use grippers to hold bottle caps and screw them on. This type of capping mechanism has the problem of excessive gripping force on the bottle caps, requiring high-precision control of the rotating shaft's torque to ensure the caps achieve the appropriate tightening force, which is not conducive to ensuring the quality of bottle capping and packaging. In addition, current automatic capping and packaging machines require adjustment structures at the conveying and positioning devices to achieve conveying and positioning of platforms of different sizes by adjusting their width. However, the adjustment operation is generally cumbersome and the adjustment accuracy is not high, affecting the debugging efficiency and requiring improvement. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a capping machine with a bidirectional adjustable conveying device.

[0005] The technical solution of this utility model is as follows: a capping machine with a bidirectional adjustable conveying device, comprising a bidirectional adjustable conveying device and a four-axis multi-specification capping device mounted on a frame. The bidirectional adjustable conveying device includes a conveyor fixedly mounted on the frame. A guide rail is provided on the frame below the conveyor. A transverse slider is provided at both ends of the guide rail. A movable seat is provided between the corresponding transverse sliders. A nut seat is provided in the middle of the movable seat. A bidirectional threaded rod is connected between the nut seats at both ends. The ends of the bidirectional threaded rod are connected to the corresponding bearing seats. A column is provided at both ends of the upper surface of the movable seat. A bottle-swinging conveying mechanism is slidably connected between the upper parts of the two columns. The bottle-swinging conveying mechanisms on both sides are symmetrically arranged. An end plate is provided between the upper ends of the two columns. A screw is rotatably connected to the middle of the end plate. The screw is threadedly connected to the bottle-swinging conveying mechanism. A bottle-clamping cylinder is provided in the middle of the bottle-clamping conveying mechanism. An arc-shaped clamping plate is provided at the outer end of the piston rod of the bottle-clamping cylinder. The openings of the arc-shaped clamping plates on both sides face each other.

[0006] Preferably, the four-axis multi-specification capping device is installed directly above the bottle conveying mechanism via a vertical bracket. The four-axis multi-specification capping device includes a square frame, four universal couplings, and four capping wheels. The square frame includes a top plate, a bottom plate, and two side plates fixedly connected between the top plate and the bottom plate. A motor is installed on the top plate, and the drive shaft of the motor is connected to a four-axis reducer. The four universal couplings are connected to the four output ends of the four-axis reducer. Two guide pillars are arranged side by side between the lower parts of the two side plates. Two slide blocks are slidably connected to the guide pillars. A cylinder is provided on the outer side of the slide block and connected to the middle of its outer side. Two capping shafts are rotatably installed side by side inside the slide blocks. The capping wheels are connected to the lower end of the capping shafts, and the upper end of the capping shafts is connected to the corresponding four-sided universal couplings.

[0007] Preferably, a pressure cover shaft is provided between the four universal couplings, and a pressure cover head is provided at the lower end of the pressure cover shaft. Two vertical slide rods are provided on a square frame on one side of the pressure cover shaft. A lifting seat is connected between the vertical slide rods. The outer end of the lifting seat is connected to the upper end of the pressure cover shaft. A fixed seat is provided between the middle parts of the two slide rods. A cylinder B connected to the lifting seat is installed on the fixed seat.

[0008] Preferably, a limit adjustment mechanism is provided on one side of the two slide blocks. The limit adjustment mechanism includes two blocks slidably connected to the support column. A limit block corresponding to the position of the block is provided on the end face of the slide block. A bidirectional lead screw is threaded between the two blocks. A handwheel is provided at the outer end of the bidirectional lead screw.

[0009] Preferably, the four-axis reducer includes four driven gears disposed at the four corners of the housing, the upper end of a universal coupling is connected to the driven gears, and a driving gear is disposed between the four driven gears, which is connected to the output shaft of the motor.

[0010] Preferably, the vertical support is provided with two symmetrical slide rails on both sides, the four-axis multi-specification capping device is connected to the two slide rails through a vertical slider, and a drive mechanism is provided between the vertical support and the four-axis multi-specification capping device.

[0011] Preferably, the frame is provided with adjustable legs at all four corners and at least two casters on the side of the bottom surface of the frame.

[0012] The beneficial technical effects of this utility model are:

[0013] (1) The conveying device inside the capping machine has a bidirectional adjustment function. The height of the bottle-swinging conveying mechanism relative to the conveyor can be adjusted by turning the screw with the handwheel, and the distance between the bottle-swinging conveying mechanisms can be adjusted by turning the bidirectional screw with the handwheel. Therefore, the two bottle-swinging conveying mechanisms can be quickly adjusted to adapt to packaging bottles of different sizes. It has the advantages of convenient and quick adjustment operation and high adjustment accuracy, which is conducive to improving market competitiveness.

[0014] (2) The capping device of the capping machine transmits the power of the motor to the capping rollers below through four universal couplings. The capping rollers press against the side of the bottle cap to achieve capping packaging. After the bottle cap is tightened, the capping rollers can rotate relative to the outer side of the bottle cap, avoiding the phenomenon of excessive tightening force of the bottle cap, which helps to improve the quality of capping packaging. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0016] Figure 2 This is a side view of the structure of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the frame and the bidirectional adjustable conveyor;

[0018] Figure 4 yes Figure 3 Front view structural diagram;

[0019] Figure 5 yes Figure 4 A schematic diagram of the AA-direction cross-section structure;

[0020] Figure 6 This is one of the three-dimensional structural diagrams of a four-axis multi-specification capping device;

[0021] Figure 7 This is the second three-dimensional structural schematic diagram of a four-axis multi-specification capping device;

[0022] Figure 8 This is a schematic diagram of the main structure of a four-axis multi-specification capping device;

[0023] Figure 9 yes Figure 8 Schematic diagram of the BB-direction cross-section structure;

[0024] Figure 10 yes Figure 8 Schematic diagram of the CC-direction cross-section structure;

[0025] Figure 11 It is a three-dimensional structural diagram of the universal coupling, slide, and cap shaft;

[0026] Figure 12 This is a three-dimensional structural diagram of the capping head and the adjustment mechanism.

[0027] In the diagram, 01. Four-axis multi-specification capping device, 11. Square frame, 12. Universal coupling, 121. Capping shaft, 122. Capping wheel, 123. Bushing, 13. Four-axis reducer, 131. Housing, 132. Driven gear, 133. Drive gear, 14. Motor, 151. Guide post, 152. Slide block, 153. Cylinder A, 16. Capping shaft, 161. Capping head, 162. Vertical slide rod, 163. Lifting seat, 164. Fixed seat, 165. Cylinder B, 166. Capping adjusting screw, 171. Support column, 17 2. Stop block, 173. Limit block, 174. Bidirectional screw, 175. Handwheel, 02. Bidirectional adjusting conveyor device, 21. Conveyor, 221. Guide rail, 222. Transverse slider, 223. Moving seat, 224. Bidirectional threaded rod, 225. Nut seat, 226. Bearing seat, 231. Column, 231. End plate, 232. Screw, 24. Bottle swing conveyor mechanism, 25. Bottle clamping cylinder, 251. Arc-shaped clamping plate, 3. Vertical support, 31. Slide rail, 32. Vertical slider, 41. Adjustable support leg, 42. Caster wheel, 5. Frame. Detailed Implementation

[0028] Example 1, see appendix Figure 1-5 A capping machine with a bidirectional adjustable conveyor includes a bidirectional adjustable conveyor 02 and a four-axis multi-specification capping device 01 mounted on a frame 5. The bidirectional adjustable conveyor 02 includes a conveyor 21 fixedly mounted on the frame 5. Packaging bottles are placed on the conveyor 21 and conveyed forward. A guide rail 221 is provided on the frame 5 below the conveyor 21. Both ends of the guide rail 221 are provided with transverse sliders 222. A movable seat 223 is provided between the corresponding transverse sliders 222. The movable seat 223 moves along the guide rail 221 via the transverse sliders 222. A nut seat 225 is provided in the middle of the movable seat 223. A bidirectional threaded rod 224 is connected between the nut seats 225 at both ends. The ends of the bidirectional threaded rod 224 are connected to the corresponding bearing seats 226. Twisting the bidirectional threaded rod 174 can drive the movable seat 224 at both ends through the nut seats 225. The movable seat 223 moves synchronously towards each other or in opposite directions; both ends of the upper surface of the movable seat 223 are provided with columns 231, and the upper parts of the two columns 231 are slidably connected to a bottle-swinging conveyor mechanism 24. The bottle-swinging conveyor mechanism 24 is a belt conveyor 21. The bottle-swinging conveyor mechanisms 24 on both sides are symmetrically arranged. An end plate is provided between the upper ends of the two columns 231. The middle part of the end plate is rotatably connected to a screw 232 through a bearing. The screw 232 is threadedly connected to the bottle-swinging conveyor mechanism 24. Tightening the screw 232 can drive the bottle-swinging conveyor mechanism 24 to move up and down to adjust the height; a bottle-clamping cylinder 25 is provided in the middle of the bottle-clamping conveyor mechanism 24. The outer end of the piston rod of the bottle-clamping cylinder 25 is provided with an arc-shaped clamping plate 251. The openings of the arc-shaped clamping plates 251 on both sides face each other. The synchronous action of the two bottle-clamping cylinders 25 can drive the two arc-shaped clamping plates 251 to move towards each other to clamp and fix the bottle.

[0029] Two slide rails 31 are symmetrically arranged on both sides of the vertical support 3. The four-axis multi-specification capping device 01 is connected to the two slide rails 31 through the vertical slider 32. A drive mechanism is provided between the vertical support 3 and the four-axis multi-specification capping device 01. The drive mechanism drives the four-axis multi-specification capping device 01 to move up and down along the slide rails 31 to change the height of the capping device so that it matches the height of different packaging bottles.

[0030] The frame 5 is equipped with adjustable support legs 41 at all four corners, and at least two casters 42 are provided on the side of the bottom surface of the frame 5. When the capping machine needs to be moved to adjust its position or to be moved for transportation, the height of the four adjustable support legs 41 is reduced so that the casters 42 can contact the ground. The capping machine can be easily moved by these casters 42.

[0031] When the capping machine in this embodiment is working, the packaging bottle moves forward from the conveyor 21. When it reaches between the two bottle-swinging conveyor mechanisms 24, the two bottle-swinging conveyor mechanisms 24 clamp the packaging bottle and assist in forward conveying, ensuring that it is in the middle position of the conveyor 21. When the packaging bottle reaches between the two bottle-clamping cylinders 25, the two bottle-clamping cylinders 25 move synchronously, driving the two arc-shaped clamping plates 251 to move towards each other to clamp and fix the bottle body, so that the packaging bottle is directly opposite the four-axis multi-specification capping device 01 above, and the cap is screwed onto the bottle mouth by the four-axis multi-specification capping device 01.

[0032] Example 2, see appendix Figure 6-12 This embodiment is basically the same as Embodiment 1, and the similarities will not be repeated. The difference is that the four-axis multi-specification capping device 01 is installed directly above the bottle conveying mechanism 24 via the vertical bracket 3. The four-axis multi-specification capping device 01 includes a square frame 11, four universal couplings 12, and four capping wheels 122. The square frame 11 includes a top plate, a bottom plate, and two side plates fixedly connected between the top plate and the bottom plate. A motor 14 is installed on the top plate. The drive shaft of the motor 14 is connected to a four-axis reducer 13. The four universal couplings 12 are connected to the four output ends of the four-axis reducer 13. The motor 14 transmits power to the four reducers. The power is transmitted to four universal couplings 12. Two guide pillars 151 are arranged side by side between the lower parts of the two side plates. Two slide blocks 152 are slidably connected to the guide pillars 151. A cylinder A 153 is provided on the outer side of the slide block 152 and connected to the middle of its outer side. The cylinder A 153 drives the slide block 152 to slide along the guide pillars 151. Two capping shafts 121 are rotatably mounted side by side inside the slide block 152. The capping wheel 122 is connected to the lower end of the capping shaft 121. The upper end of the capping shaft 121 is connected to the corresponding universal couplings 12 around the perimeter. The universal couplings 12 transmit power to the capping shaft 121, and the capping shaft 121 rotates with the capping wheel 122 at its lower end.

[0033] The four-axis reducer 13 includes four driven gears 132 disposed at the four corners of the housing 131. The upper end of the universal coupling 12 is connected to the driven gears 132. A driving gear 133 is disposed between the four driven gears 132. The size of the driving gear 133 is larger than that of the driven gears 132. The driving gear 133 is connected to the output shaft of the motor 14. The motor 14 drives the driving gear 133 to rotate. The driving gear 133 synchronously drives the four driven gears 132 to rotate. The driven gears 132 drive the capping shaft 121 to rotate through the universal coupling 12.

[0034] The slide block 152 is provided with a bushing 123, and the capping shaft 121 is rotatably fitted inside the bushing 123. The lower end of the bushing 123 is close to the capping wheel 122. The bushing 123 is used to provide stable rotational support for the capping shaft 121.

[0035] A limiting adjustment mechanism is provided on one side of each of the two slide blocks 152. This limiting adjustment mechanism includes two stops 172 slidably connected to the support column 171. A limiting block 173 corresponding to the position of the stop block 172 is provided on the end face of the slide block 152. A double-acting screw 174 is threaded between the two stops 172, and a handwheel 175 is provided at the outer end of the double-acting screw 174. The sliding stroke of the slide block 152 is limited by the corresponding limiting blocks 173 and stops 172, ensuring that the lower capping wheel 122 clamps the platform with the same force each time. The double-acting screw 174 can synchronously drive the two stops 172 to slide in opposite directions, which facilitates and quickly adjusts the movement stroke of the capping wheel 122, making it suitable for capping packaging of various sizes of bottle caps.

[0036] A pressure cap shaft 16 is provided between four universal couplings 12. A pressure cap head 161 is provided at the lower end of the pressure cap shaft 16. Two vertical slide rods 162 are provided on a square frame 11 on one side of the pressure cap shaft 16. A lifting seat 163 is connected between the vertical slide rods 162. The outer end of the lifting seat 163 is connected to the upper end of the pressure cap shaft 16. The lifting seat 163 slides along the slide rods, thereby moving the pressure cap shaft 16 and the pressure cap head 161 up and down. A fixed seat 164 is provided between the middle of the two slide rods. A cylinder B 165 connected to the lifting seat 163 is installed on the fixed seat 164. The piston rod of the cylinder B 165 is fixedly connected or hinged to the middle of the bottom surface of the lifting seat 163.

[0037] The top plate is equipped with a capping adjustment screw 166, which passes through the lifting seat 163 and is threadedly connected to the fixed seat 164 below. The upper end of the adjustment screw is equipped with a handwheel 175. When adjusting the height of the capping head 161 through this adjustment screw, the set screw on the fixed seat 164 is loosened, and the handwheel 175 is rotated to drive the adjustment screw to rotate. The adjustment screw drives the fixed seat 164 to slide along the vertical slide bar 162 through the bolt. The fixed seat 164, along with the lifting seat 163, adjusts the height as a whole. After the adjustment is completed, the set screw is tightened again so that the capping head 161 can adapt to bottle caps of different heights.

[0038] When the capping device of this embodiment is in use, the starter motor 14 drives the drive gear 133 in the four-axis reducer 13 to rotate. The drive gear 133 synchronously drives the four driven gears 132 to rotate. The driven gears 132 drive the universal coupling 12 to rotate. The universal coupling 12 transmits power to the capping shaft 121. The capping shaft 121 drives the capping wheel 122 below to rotate. Then, the cylinders on both sides are started simultaneously to drive the two slide blocks 152 to slide towards each other along the guide post 151. The slide blocks 152 on both sides move towards each other with the capping wheel 122 below to hold the bottle cap. During the movement of the slide blocks 152, the universal coupling 12 extends and retracts accordingly to ensure power transmission. The rotational force of the capping wheel 122 drives the bottle cap to be tightened at the mouth of the packaging bottle.

Claims

1. A cap screwing machine with a bidirectional adjustment type conveying device, characterized in that: The device includes a bidirectional adjustable conveyor and a four-axis multi-specification capping device mounted on a frame. The bidirectional adjustable conveyor includes a conveyor fixedly mounted on the frame. A guide rail is provided on the frame below the conveyor. Both ends of the guide rail are provided with transverse sliders. A movable seat is provided between the corresponding transverse sliders. A nut seat is provided in the middle of the movable seat. A bidirectional threaded rod is connected between the nut seats at both ends. The ends of the bidirectional threaded rod are connected to the corresponding bearing seats. Both ends of the upper surface of the movable seat are provided with columns. A bottle-swinging conveyor mechanism is slidably connected between the upper parts of the two columns. The bottle-swinging conveyor mechanisms on both sides are symmetrically arranged. An end plate is provided between the upper ends of the two columns. A screw is rotatably connected to the middle of the end plate. The screw is threadedly connected to the bottle-swinging conveyor mechanism. A bottle-clamping cylinder is provided in the middle of the bottle-clamping cylinder. An arc-shaped clamping plate is provided at the outer end of the piston rod of the bottle-clamping cylinder. The openings of the arc-shaped clamping plates on both sides face each other.

2. The spin-on cap machine with bidirectional adjustment type conveying device according to claim 1, characterized in that: The four-axis multi-specification capping device is installed directly above the bottle conveying mechanism via a vertical bracket. The four-axis multi-specification capping device includes a square frame, four universal couplings, and four capping wheels. The square frame includes a top plate, a bottom plate, and two side plates fixedly connected between the top plate and the bottom plate. A motor is installed on the top plate, and the drive shaft of the motor is connected to a four-axis reducer. The four universal couplings are connected to the four output ends of the four-axis reducer. Two guide pillars are arranged side by side between the lower parts of the two side plates. Two slide blocks are slidably connected to the guide pillars. A cylinder is provided on the outer side of the slide block and connected to the middle of its outer side. Two capping shafts are rotatably installed side by side inside the slide block. The capping wheels are connected to the lower end of the capping shafts, and the upper end of the capping shafts is connected to the corresponding four-sided universal couplings.

3. The spin-on cap machine with bidirectional adjustment type conveying device according to claim 2, characterized in that: A pressure cover shaft is provided between the four universal couplings. A pressure cover head is provided at the lower end of the pressure cover shaft. Two vertical slide rods are provided on a square frame on one side of the pressure cover shaft. A lifting seat is connected between the vertical slide rods. The outer end of the lifting seat is connected to the upper end of the pressure cover shaft. A fixed seat is provided between the middle of the two slide rods. A cylinder B connected to the lifting seat is installed on the fixed seat.

4. The spin-on cap machine with bidirectional adjustment type conveying device according to claim 2, characterized in that: One side of the two slide blocks is provided with a limit adjustment mechanism, which includes two blocks slidably connected to the support column. The end face of the slide block is provided with a limit block corresponding to the position of the block. A two-way screw is threaded between the two blocks, and a handwheel is provided at the outer end of the two-way screw.

5. The spin-on cap machine with bidirectional adjustment type conveying device according to claim 2, characterized in that: The four-axis reducer includes four driven gears located at the four corners of the housing. The upper end of the universal coupling is connected to the driven gears. A driving gear is provided between the four driven gears and is connected to the output shaft of the motor.

6. The spin-on cap machine with bidirectional adjustment type conveying device according to claim 2, characterized in that: The vertical support has two symmetrical slide rails on both sides. The four-axis multi-specification capping device is connected to the two slide rails through a vertical slider, and a drive mechanism is provided between the vertical support and the four-axis multi-specification capping device.

7. A capping machine with a bidirectional adjustable conveying device according to claim 1, characterized in that: The frame is equipped with adjustable legs at all four corners and at least two casters on the side of the bottom surface of the frame.

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