Boxing robot for plastic bottles

Abstract

The boxing robot comprises a fixing barrel arranged at the mounting end of a manipulator, a piston plate is slidably mounted in the middle of the interior of the fixing barrel, an adsorption part is arranged in an opening in the bottom end of the fixing barrel and used for blocking a gap between the fixing barrel and the plastic bottle, and a driving mechanism is arranged at the top end of the fixing barrel and used for driving the piston plate to rotate; the piston plate is driven to slide in the fixing cylinder in a reciprocating mode. The invention relates to the technical field of plastic bottle boxing devices. When the improved plastic bottle boxing robot is used, in the process that plastic bottles are placed in a packaging box or a transfer box, the situation that due to angle deviation of the plastic bottles, the plastic bottles abut against partitions in the packaging box or partitions in the transfer box or the plastic bottles in the packaging box, and boxing operation of the plastic bottles is affected is effectively avoided; or the plastic bottles placed in the packaging box are toppled over, so that the subsequent packaging operation of the plastic bottles is influenced.

Description

Technical Field

[0001] The present disclosure belongs to the technical field of plastic bottle packing devices, and particularly relates to a packing robot for plastic bottles. Background Art

[0002] Plastic bottles are a widely used type of container, mainly made of plastic, and are characterized by being lightweight, durable, and low-cost. After packaging materials using plastic bottles, generally, a packing robot, that is, a packing manipulator, is used to complete the packing operation of plastic bottles.

[0003] When existing manipulators perform the packing operation of plastic bottles, with the long-term use of the manipulator, the positional deviation of the packing box, or the angular deviation of the plastic bottles, it may occur that when the manipulator places the plastic bottles into the packing box, they collide with the partitions or the plastic bottles inside the packing box, thus affecting the packing operation of the plastic bottles, or causing the plastic bottles placed in the packing box to fall over, affecting the subsequent packing operation of the plastic bottles. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to provide a packing robot for plastic bottles, which can effectively avoid the situation where due to the angular deviation or positional deviation of the plastic bottles, during the process of placing the plastic bottles into the packing box or transfer box, the plastic bottles collide with the partitions or each other, resulting in the plastic bottles being unable to be placed.

[0005] To solve the above problems, the present invention provides a packing robot for plastic bottles, including: a fixed cylinder provided at the manipulator installation end, a piston plate is slidably installed in the middle thereof, an adsorbing member is provided in the bottom opening thereof for blocking the gap between the fixed cylinder and the plastic bottle, and a driving mechanism is provided at the top thereof for driving the piston plate to reciprocate slidably within the fixed cylinder;

[0006] A plurality of guide rods are fixedly installed relatively on the top side of the adsorbing member, and each guide rod slidably penetrates through the piston plate;

[0007] A plurality of storage holes are relatively opened on the outer peripheral wall of the top of the fixed cylinder, a plurality of pressure monitoring sensors are fixedly installed inside the barrel wall of the top thereof, and the bottom end of each pressure monitoring sensor is inserted into the corresponding storage hole. A plurality of air storage grooves are relatively opened at the bottom end of the fixed cylinder, and the inside of the air storage groove is communicated with the inside of the corresponding storage hole. A piston rod I is slidably installed in the air storage groove.

[0008] Further, the driving mechanism includes a motor, which is fixedly installed at the top of the fixed cylinder, a threaded rod is fixedly installed at the driving end of the motor, the bottom end of the threaded rod threadedly penetrates through the piston plate, and the top end of the threaded rod is rotatably connected to the barrel wall of the fixed cylinder.

[0009] Further, the adsorbing member includes a fixing ring which is rotatably installed in the bottom opening of the fixing cylinder through a bearing, and a soft ring is fixedly installed on the bottom side of the fixing ring.

[0010] Further, the bottom side of the fixing ring is coplanar with the bottom side of the fixing cylinder, and the bottom side of the soft ring is coplanar with the bottom end of the first piston rod. The inside of the soft ring is hollow and filled with air.

[0011] Further, an annular groove is formed in the inner wall of the bottom opening of the fixing cylinder, a sealing ring is slidably arranged in the annular groove, and the inner ring wall of the sealing ring is in contact with the outer peripheral wall of the fixing ring.

[0012] Further, the bottom end of the guide rod is fixedly connected to the top side of the fixing ring, and the top end of the guide rod is in contact with the inner wall of the fixing cylinder.

[0013] Further, the opening at one end of the storage hole is communicated with the inside of the fixing cylinder through an electric control valve, and the end of the electric control valve close to the threaded rod is in clearance fit with the threaded rod. An adjusting mechanism is arranged on the outer peripheral side of the fixing cylinder for adjusting the position of the fixing cylinder.

[0014] Further, the adjusting mechanism includes a plurality of second piston rods which are respectively slidably installed in the openings at the other ends of the storage holes, and the bottom end of the pressure monitoring sensor and the top end of the air storage tank are both located between the corresponding second piston rods and the corresponding electric control valves. A square cylinder is sleeved on the top of the fixing cylinder, and the second piston rods are connected to the square cylinder through connecting members.

[0015] Further, a receiving groove is formed in the inner wall of the opening at the other end of the air storage tank, a sealing ring is slidably installed in the receiving groove, and the inner ring wall of the sealing ring is in contact with the outer peripheral wall of the corresponding second piston rod.

[0016] Further, the connecting member includes a sliding groove which is formed in the corresponding inner side wall of the square cylinder, a sliding block is arranged in the sliding groove, and the sliding block is fixedly connected to the corresponding second piston rod.

[0017] Further, the cross-sectional shape of the sliding groove and the cross-sectional shape of the sliding block are both convex-shaped, and the part of the sliding block located in the corresponding sliding groove is in contact with the inner side wall of the corresponding sliding groove.

[0018] In summary, the present invention includes at least one of the following beneficial technical effects:

[0019] 1. When the improved plastic bottle packing robot is in use, during the process of placing plastic bottles into a packing box or a transfer box, it can effectively avoid the situation where due to the angular deviation of the plastic bottles, the plastic bottles collide with the partitions in the packing box, the partitions in the transfer box, or the plastic bottles in the packing box, which affects the packing operation of the plastic bottles, or causes the plastic bottles placed in the packing box to fall over, affecting the subsequent packing operation of the plastic bottles.

[0020] 2. If the collision and restraint state of the plastic bottles still cannot be avoided after the angles of the plastic bottles are adjusted, then the high-pressure chamber at the top inside the fixed cylinder is used to drive the plastic bottles to move left and right or back and forth, so as to effectively avoid the situation where due to the position deviation of the plastic bottles, the plastic bottles collide with the partitions in the packing box or the plastic bottles in the packing box, which affects the packing operation of the plastic bottles, or causes the plastic bottles placed in the packing box to fall over, affecting the subsequent packing operation of the plastic bottles. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional view of the overall structure of the present invention;

[0022] Figure 2 is a front view of the internal structures of the fixed cylinder and the square cylinder of the present invention;

[0023] Figure 3 is a three-dimensional view of the overall structure of the driving mechanism and the seal of the present invention;

[0024] Figure 4 is a three-dimensional view of the internal structures of the seal and the piston plate of the present invention;

[0025] Figure 5 is a three-dimensional view of the internal structure of the fixed cylinder of the present invention;

[0026] Figure 6 is of the present invention Figure 5 an enlarged view of the structure at A;

[0027] Figure 7 is of the present invention Figure 5 an enlarged view of the structure at B;

[0028] Figure 8 is a three-dimensional view of the internal structure of the square cylinder of the present invention;

[0029] Figure 9 is a three-dimensional view of the second piston rod and the slider of the present invention.

[0030] The reference numerals are shown as:

[0031] 1. Fixed cylinder; 2. Piston plate; 3. Driving mechanism; 31. Motor; 32. Threaded rod; 4. Sucking attachment; 41. Fixed ring; 42. Soft ring; 5. Adjusting mechanism; 51. Second piston rod; 52. Square cylinder; 53. Connecting piece; 531. Chute; 532. Slide block; 54. Accommodating groove; 55. Sealing ring; 6. Guide rod; 7. Storage hole; 8. Pressure monitoring sensor; 9. Air storage tank; 10. First piston rod; 11. Annular groove; 12. Sealing ring; 13. Electric control valve. Detailed implementation manners

[0032] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present invention.

[0033] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0034] In the present invention, unless otherwise clearly defined and limited, the terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0035] The following describes the preferred embodiments of the present invention with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present invention and are not used to limit the present invention.

[0036] Referring to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8As shown, according to Embodiment 1 of the present invention, a packing robot for plastic bottles is provided, including: a fixed cylinder 1 provided at the mounting end of the manipulator. A piston plate 2 is slidably installed in the middle thereof. An adsorbing member 4 is provided in the bottom opening thereof for blocking the gap between the fixed cylinder 1 and the plastic bottle. A driving mechanism 3 is provided at the top thereof for driving the piston plate 2 to reciprocally slide within the fixed cylinder 1;

[0037] A plurality of guide rods 6 are fixedly installed opposite to the top side of the adsorbing member 4, and each guide rod 6 slidably penetrates through the piston plate 2;

[0038] A plurality of storage holes 7 are oppositely opened on the outer peripheral wall of the top of the fixed cylinder 1. A plurality of pressure monitoring sensors 8 are fixedly installed in the barrel wall at the top thereof, and the bottom end of each pressure monitoring sensor 8 is inserted into the corresponding storage hole 7. A plurality of air storage grooves 9 are oppositely opened at the bottom of the fixed cylinder 1, and the inside of the air storage groove 9 communicates with the inside of the corresponding storage hole 7. A piston rod 10 is slidably installed in the air storage groove 9.

[0039] In this embodiment, when the improved plastic bottle packing robot is in use, (the above-mentioned manipulator is an intelligent manipulator in the present technical field, mainly composed of a control host, a driving slide rail and a telescopic structure), please refer to Figure 1 、 Figure 2 and Figure 4 As shown, first, the manipulator moves the fixed cylinder 1 to the top of the plastic bottle and makes the sealing member fit with the top of the plastic bottle. Please refer to Figure 2 、 Figure 3 and Figure 4 As shown, subsequently, the driving mechanism 3 is started, so that the piston plate 2 slides upward within the fixed cylinder 1 until the piston plate 2 abuts against the inner wall of the fixed cylinder 1, thereby forming a negative pressure cavity in the bottom opening of the fixed cylinder 1, and adsorbing and fixing the plastic bottle on the top side of the fixed cylinder 1;

[0040] Please refer to Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6As shown, after the adsorption and fixation of the plastic bottle are completed, the manipulator moves the plastic bottle to the top side of the packing box, and then moves the plastic bottle downward to place it into the packing box. During the process of inserting the plastic bottle into the packing box, if the plastic bottle has an angular deviation (i.e., the placed plastic bottle is a plastic bottle with edges, such as a Wahaha plastic bottle), then during the process of placing the plastic bottle into the packing box, the plastic bottle will conflict with the partition of the packing box or the plastic bottles in the packing box. At this time, with the deformation of the bottom of the suction accessory 4, the plastic bottle can push the corresponding piston rod 10, causing the piston rod 10 to move upward, so as to push a part of the gas in the corresponding air storage tank 9 into the corresponding storage hole 7. At this time, the pressure monitoring sensor 8 detects a change in the pressure in the storage hole 7 (the pressure sensor transmits the detection signal into the manipulator control host through the Internet of Things). At this time, the driving mechanism 3 starts again. Due to the mutual conflict between the piston plate 2 and the inner wall of the fixed cylinder 1, the piston plate 2 cannot continue to move upward, so the piston plate 2 rotates along the inner top wall of the fixed cylinder 1. At this time, the guide rod 6 conflicts with the piston plate 2, and the rotating piston plate 2 drives the suction accessory 4 to rotate synchronously through the guide rod 6, thereby adjusting the plastic bottle to rotate by the corresponding angle until the plastic bottle no longer conflicts with the partition of the packing box or the plastic bottles in the packing box, so as to straighten the plastic bottle and enable the plastic bottle to be normally placed into the packing box. After the plastic bottle is placed into the packing box, the driving mechanism 3 drives the piston plate 2 to move downward, thereby relieving the negative pressure state at the bottom opening of the fixed cylinder 1, so as to relieve the adsorption and fixation state between the plastic bottle and the suction accessory 4. The placement of the plastic bottle in the packing box is completed. In this way, the placement of the plastic bottle in the packing box can be continuously completed reciprocally;

[0041] In summary, when the improved plastic bottle packing robot is used, during the process of placing the plastic bottle into the packing box or the transfer box, it can effectively avoid the mutual conflict between the plastic bottle and the partition in the packing box, the partition in the transfer box or the plastic bottles in the packing box due to the angular deviation of the plastic bottle, which affects the packing operation of the plastic bottle, or causes the plastic bottle placed in the packing box to fall over, affecting the subsequent packing operation of the plastic bottle.

[0042] In a further preferred embodiment of the present invention, as Figure 2 and Figure 3 shown, the driving mechanism 3 includes a motor 31, which is fixedly installed at the top end of the fixed cylinder 1. The driving end of the motor 31 is fixedly installed with a threaded rod 32. The bottom end of the threaded rod 32 threadedly penetrates through the piston plate 2, and the top end of the threaded rod 32 is rotatably connected to the cylinder wall of the fixed cylinder 1.

[0043] In this embodiment, please refer to Figure 2 and Figure 3As shown, after the plastic bottle is adsorbed and fixed, the motor 31 starts to drive the threaded rod 32 to rotate forward (the motor 31 is a servo motor). At this time, due to the constraint and limit of the guide rod 6 on the piston plate 2, the piston plate 2 slides upward within the fixed cylinder 1 (a seal is installed at the position corresponding to the guide rod 6 within the wall of the piston plate 2 to block the gap between the guide rod and the piston plate 2).

[0044] After the plastic bottle is placed into the packaging box or transfer box, the motor 31 drives the threaded rod 32 to rotate in the reverse direction, thereby driving the piston plate 2 to slide downward within the fixed cylinder 1 to relieve the negative pressure state within the bottom opening of the fixed cylinder 1. The device has a simple structure and a high degree of automation.

[0045] In a further preferred embodiment of the present invention, as Figure 1 , Figure 2 and Figure 4 shown, the adsorbing member 4 includes a fixing ring 41 which is rotatably installed within the bottom opening of the fixed cylinder 1 through a bearing, and a soft ring 42 is fixedly installed on the bottom side of the fixing ring 41.

[0046] In this embodiment, please refer to Figure 2 and Figure 4 shown. When the manipulator moves to the top of the plastic bottle towards the fixed cylinder 1, first, the soft ring 42 will contact the top side of the plastic bottle (the top side of the plastic bottle is the top side of the bottle cap). At this time, due to the pressing of the fixed cylinder 1 on the soft ring 42, corresponding telescopic deformations occur at various positions on the bottom side of the soft ring 42, so that a surface that completely fits the top side of the plastic bottle is formed on the bottom side of the soft ring 42 to block the gap between the bottom side of the fixing ring 41 and the top side of the plastic bottle, and it can effectively avoid raised or sunken markings on the top side of the plastic bottle.

[0047] In a further preferred embodiment of the present invention, as Figure 4 shown, the bottom side of the fixing ring 41 is coplanar with the bottom side of the fixed cylinder 1, and the bottom side of the soft ring 42 is coplanar with the bottom end of the piston rod 10. The interior of the soft ring 42 is hollow and filled with air.

[0048] In this embodiment, please refer to Figure 2 and Figure 4 shown. The coplanar setting of the bottom side of the fixing ring 41 and the bottom side of the fixed cylinder 1 makes the soft ring 42 located outside the fixed cylinder 1, so that there is enough space outside the soft ring 42 to generate corresponding deformations;

[0049] The coplanarity of the bottom sides of the soft ring 42 allows the soft ring 42 to deform in a corresponding state during the process of adsorbing and fixing the plastic bottle to the bottom side of the fixing cylinder 1 due to the pulling of the plastic bottle by the adsorption force, thereby causing the top side of the plastic bottle and the plurality of piston rods 10 to synchronously contact each other, thereby synchronously pushing the piston rods 10 upward to move a corresponding distance, thereby causing the plurality of pressure monitoring sensors 8 to synchronously detect the pressure change in the storage hole 7. At this time, the control host can determine whether the adsorption and fixation of the plastic is completed based on the detection results of the pressure monitoring sensors 8;

[0050] The hollow setting of the soft ring 42 allows the soft ring 42 to be deformed to a greater extent, and when a part of the plastic bottle collides with the baffle or the plastic bottle in the box, as the force on the part of the plastic bottle increases, the part of the soft ring 42 deforms to a corresponding state, and the gas inside the soft ring 42 at this position flows to the rest of the soft ring 42, thereby causing the plastic bottle to tilt, and only pushing the piston rod 10 at the corresponding position to determine which position of the front, back, left, or right side of the bottom side of the plastic bottle collides with the baffle or the plastic bottle in the box.

[0051] In a further preferred embodiment of the present invention, Figure 5 and Figure 7 As shown, an annular groove 11 is provided on the inner wall of the bottom opening of the fixing cylinder 1 , a sealing ring 12 is slidably provided in the annular groove 11 , and the inner ring wall of the sealing ring 12 contacts the outer peripheral wall of the fixing ring 41 .

[0052] In this embodiment, please refer to Figure 5 and Figure 7 As shown, when the piston plate 2 is in the process of sliding upward in the fixed cylinder 1 or when the fixed ring 41 is in the process of rotating in the bottom opening of the fixed cylinder 1, due to the sealing of the support ring and the inner wall of the bottom opening of the fixed cylinder 1 by the sealing ring 12, the outside air will not flow into the fixed cylinder 1 through the gap between the support ring and the inner wall of the bottom opening of the fixed cylinder 1, affecting the adsorption and fixation of the plastic bottle by the negative pressure chamber in the bottom opening of the fixed cylinder 1.

[0053] In a further preferred embodiment of the present invention, Figure 2 and Figure 5 As shown, the bottom end of the guide rod 6 is fixedly connected to the top side of the fixing ring 41 , and the top end of the guide rod 6 is in contact with the inner wall of the fixing cylinder 1 .

[0054] In this embodiment, please refer to Figure 2 and Figure 5As shown, (the top end of the guide rod 6 abuts against the inner top wall of the fixed cylinder 1 to generate a large frictional force). When the motor 31 drives the threaded rod 32 to rotate, due to the frictional force between the guide rod 6 and the inner wall of the fixed cylinder 1, and the constraint and limit of the guide rod 6 on the piston plate 2, the rotating threaded rod 32 will not drive the piston plate 2 to rotate synchronously at first. Instead, it will first drive the piston plate 2 to move up or down. After the piston plate 2 abuts against the inner top wall of the fixed cylinder 1 or the support ring, since the piston plate 2 cannot continue to move up or down, at this time, the rotating threaded rod 32 exerts a great axial thrust on the piston plate 2 to offset the frictional force between the guide rod 6 and the fixed cylinder 1 or the frictional force between the piston plate 2 and the inner top wall of the fixed cylinder 1, and drive the piston plate 2 to rotate. Without setting an additional driving structure, the production cost of the device is reduced;

[0055] It should be noted that a clamping groove can also be opened on the inner wall of the fixed cylinder 1, and a spring, a push rod and a ball are arranged inside the ring wall of the support ring. The support ring and the fixed cylinder 1 are constrained and limited by the mutual abutment of the ball and the inner wall of the clamping groove. When the support ring receives a great axial thrust, the ball is extruded from the clamping groove to release the constrained and limited state between the support ring and the fixed cylinder 1, so that the rotating piston plate 2 can drive the support ring to rotate through the guide rod 6.

[0056] In a further preferred embodiment of the present invention, as Figure 2 、 Figure 5 and Figure 6 shown, one end opening of the storage hole 7 is connected to the inside of the fixed cylinder 1 through an electric control valve 13, and one end of the electric control valve 13 close to the threaded rod 32 is in clearance fit with the threaded rod 32. An adjusting mechanism 5 is arranged on the outer peripheral side of the fixed cylinder 1 for adjusting the position of the fixed cylinder 1.

[0057] In this embodiment, please refer to Figure 2 、 Figure 5 and Figure 6 shown. During the upward movement of the piston plate 2, the gas at the top inside the fixed cylinder 1 can be compressed synchronously, so that a high-pressure cavity is formed at the top inside the fixed cylinder 1. After the plastic bottle adjusts its angle and still cannot avoid the state of being abutted and constrained, the electric control valve 13 at the corresponding position is opened, so that the excess gas at the top inside the fixed cylinder 1 flows through the electric control valve 13 into the storage hole 7 to drive the adjusting mechanism 5 to start, thereby driving the fixed cylinder 1 to move forward or backward or left or right to adjust the position of the plastic bottle, effectively avoiding the situation that due to the position deviation of the plastic bottle, the plastic bottle abuts against the partition in the packing box or the plastic bottles in the packing box, affecting the packing operation of the plastic bottle, or causing the plastic bottles placed in the packing box to fall down, affecting the subsequent packing operation of the plastic bottle;

[0058] It should be noted that when the gas in the fixed cylinder 1 flows through the electric control valve 13 into the storage hole 7, the control host judges the pressure in the storage hole 7 at the corresponding position according to the monitoring result of the pressure monitoring sensor 8, so as to judge the moving distance of the fixed cylinder 1 forward, backward, left or right according to the pressure in the storage hole 7.

[0059] In a further preferred embodiment of the present invention, as Figure 2 , Figure 5 and Figure 6 shown, the adjusting mechanism 5 includes a plurality of second piston rods 51 which are respectively slidably installed in the openings at the other ends of the storage holes 7, and the bottom end of the pressure monitoring sensor 8 and the top end of the air storage tank 9 are both located between the corresponding second piston rods 51 and the corresponding electric control valves 13. A square cylinder 52 is sleeved on the top of the fixed cylinder 1, and the second piston rod 51 is connected to the square cylinder 52 through a connecting piece 53.

[0060] In this embodiment, please refer to Figure 2 , Figure 5 and Figure 6 shown, (the second piston rod 51 divides the inside of the storage hole 7 into two parts, namely the first cavity and the second cavity, and the first cavity is located outside the fixed cylinder 1). When the electric control valve 13 is opened, part of the gas in the fixed cylinder 1 flows through the electric control valve 13 into the second cavity, so as to form a high-pressure cavity in the second cavity, thereby pushing out part of the corresponding second piston rod 51 from the storage hole 7, and at the same time, part of the second piston rod 51 at the opposite position retracts into the storage hole 7, so as to increase the distance between the inner walls of the square cylinder 52 at the corresponding position of the fixed cylinder 1 and reduce the distance between the inner walls of the square cylinder 52 at the corresponding reverse position of the fixed cylinder 1. Thus, by opening or closing the electric control valves 13 at different positions, the fixed cylinder 1 is driven to translate forward, backward, left or right in the square cylinder 52 to finely adjust the position of the plastic bottle within a certain range, without setting an additional driving structure, reducing the production cost of the device.

[0061] In a further preferred embodiment of the present invention, as Figure 5 and Figure 6 shown, a receiving groove 54 is formed on the inner wall of the opening at the other end of the air storage tank 9, a sealing ring 55 is slidably installed in the receiving groove 54, and the inner ring wall of the sealing ring 55 is in contact with the outer peripheral wall of the corresponding second piston rod 51.

[0062] In this embodiment, please refer to Figure 5 and Figure 6As shown, the sealing ring 55 can seal the gap between the second piston rod 51 and the inner wall of the storage hole 7, so that the first cavity forms a closed cavity. (The first cavity is filled with gas to form a high-pressure cavity with a corresponding strength inside, so as to apply a thrust force to the piston rod in the direction of the electric control valve 13). When the second piston rod 51 slides out of the storage hole 7, the gas in the first cavity can be compressed synchronously. As the fixed cylinder 1 moves, when the second piston rod 51 retracts into the storage hole 7, the second piston rod 51 compresses the gas in the second cavity, and the gas in the first cavity assists in pushing the second piston rod 51 to compress the gas in the second cavity;

[0063] When the piston plate 2 slides downward inside the fixed cylinder 1, the electric control valve 13 is fully opened. At this time, as the piston plate 2 moves downward, the gas flowing into the second cavity is re-sucked into the fixed cylinder 1. At this time, the pressures in the first cavity and the second cavity are restored. Due to the pushing of the gas in the first cavity on the second piston rod 51, the lengths of the second piston rods 51 retracted into the storage hole 7 are the same. At this time, the fixed cylinder 1 automatically moves to the central position inside the square cylinder 52, eliminating the need for an additional driving structure and reducing the production cost of the device.

[0064] In a further preferred embodiment of the present invention, as Figure 2 、 Figure 8 and Figure 9 shown, the connecting member 53 includes a sliding groove 531, which is opened on the corresponding inner side wall of the square cylinder 52. A sliding block 532 is provided in the sliding groove 531, and the sliding block 532 is fixedly connected to the corresponding second piston rod 51.

[0065] In this embodiment, please refer to Figure 2 、 Figure 8 and Figure 9 shown, during the movement of the fixed cylinder 1 inside the square cylinder 52, due to the mutual contact between the second piston rod 51 and the inner wall of the storage hole 7, two of the second piston rods 51 move synchronously with the fixed cylinder 1. At this time, the connection position between the second piston rod 51 and the inner wall of the square cylinder 52 can be adaptively changed by the sliding of the sliding block 532 in the sliding groove 531 to adapt to the position change of the fixed cylinder 1.

[0066] In a further preferred embodiment of the present invention, as Figure 8 and Figure 9 shown, the cross-sectional shape of the sliding groove 531 and the cross-sectional shape of the sliding block 532 are both convex-shaped, and the part of the sliding block 532 located in the corresponding sliding groove 531 is in contact with the inner side wall of the corresponding sliding groove 531.

[0067] In this embodiment, please refer to Figure 8 and Figure 9As shown, the slider 532 and the inner cavity of the slide groove 531 arranged in a convex shape can restrain the distance between the piston rod 2 51 and the inner wall of the square cylinder 52 through the mutual interference between the slider 532 and the inner wall of the slide groove 531, so as to prevent the retracted piston rod from pulling the slider 532 out of the slide groove 531 during the reset sliding process of the fixed cylinder 1, thereby affecting the use of the device.

[0068] Working principle:

[0069] When the improved plastic bottle packing robot is in use, the plastic bottle is adsorbed and fixed on the bottom side of the fixed cylinder 1 through the negative pressure chamber opened at the bottom end of the fixed cylinder 1. At this time, if all the pressure sensors detect the pressure change, the control host can determine that the plastic bottle is grabbed, otherwise the plastic bottle is not grabbed. Then, the robot drives the slide rail and the telescopic mechanism to cooperate with each other to put the plastic bottle into the packaging box or transfer box. At this time, if the angle or position of the plastic bottle deviates, the corresponding position of the bottom end of the plastic bottle will conflict with the partition or the plastic bottle in the box, and the pressure sensor at the corresponding position will detect the pressure change. If the obstruction disappears, the packing operation of the plastic bottle can be continued. If the obstruction does not disappear, the driving rod plastic rotation is reset, and the plastic bottle is driven to move forward, backward, left or right to adjust the position of the plastic bottle within a certain range, so as to complete the packing operation of the plastic bottle normally. When the plastic bottle packing is blocked, the host computer can intelligently determine the position of the blocked plastic bottle and make corresponding adjustments, so that the device can complete the packing operation of the plastic bottle normally. The device has a high degree of intelligence.

[0070] It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0071] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention. The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art may make various improvements and variations without departing from the technical principles of the present invention, and such improvements and variations shall also be considered within the scope of protection of the present invention.

Claims

1. A packing robot for plastic bottles, characterized in that, Comprising: A fixed cylinder (1) provided at the mounting end of the manipulator, in the middle of which a piston plate (2) is slidably installed. An adsorbing member (4) is provided in the bottom opening thereof for blocking the gap between the fixed cylinder (1) and the plastic bottle. A driving mechanism (3) is provided at the top thereof for driving the piston plate (2) to reciprocate slidably within the fixed cylinder (1); A plurality of guide rods (6) are fixedly installed opposite to the top side of the adsorbing member (4), and each guide rod (6) slidably penetrates through the piston plate (2); A plurality of storage holes (7) are oppositely opened on the outer peripheral wall of the top of the fixed cylinder (1). A plurality of pressure monitoring sensors (8) are fixedly installed inside the barrel wall of the top thereof, and the bottom end of each pressure monitoring sensor (8) is inserted into the corresponding storage hole (7). A plurality of air storage grooves (9) are oppositely opened at the bottom end of the fixed cylinder (1), and the inside of the air storage groove (9) is communicated with the inside of the corresponding storage hole (7). A piston rod one (10) is slidably installed in the air storage groove (9).

2. The cartoning robot for plastic bottles according to claim 1, characterized in that, The driving mechanism (3) includes a motor (31) fixedly installed at the top of the fixed cylinder (1). A threaded rod (32) is fixedly installed at the driving end of the motor (31). The bottom end of the threaded rod (32) threadedly penetrates through the piston plate (2), and the top end of the threaded rod (32) is rotatably connected to the barrel wall of the fixed cylinder (1).

3. The case-packing robot for plastic bottles according to claim 2, wherein The adsorbing member (4) includes a fixed ring (41) rotatably installed in the bottom opening of the fixed cylinder (1) through a bearing. A soft ring (42) is fixedly installed on the bottom side of the fixed ring (41).

4. A packing robot for plastic bottles according to claim 3, characterized in that, The bottom side of the fixed ring (41) is coplanar with the bottom side of the fixed cylinder (1), and the bottom side of the soft ring (42) is coplanar with the bottom end of the piston rod one (10). The inside of the soft ring (42) is hollow and filled with air.

5. A packing robot for plastic bottles according to claim 4, characterized in that, An annular groove (11) is opened on the inner wall of the bottom opening of the fixed cylinder (1). A sealing ring (12) is slidably installed in the annular groove (11), and the inner ring wall of the sealing ring (12) is in contact with the outer peripheral wall of the fixed ring (41).

6. The case-packing robot for plastic bottles according to claim 5, wherein The bottom end of the guide rod (6) is fixedly connected to the top side of the fixed ring (41), and the top end of the guide rod (6) is in contact with the inner wall of the fixed cylinder (1).

7. The case-packing robot for plastic bottles according to claim 6, characterized in that, One end opening of the storage hole (7) is communicated with the inside of the fixed cylinder (1) through an electric control valve (13), and one end of the electric control valve (13) close to the threaded rod (32) is in clearance fit with the threaded rod (32). An adjusting mechanism (5) is provided on the outer peripheral side of the fixed cylinder (1) for adjusting the position of the fixed cylinder (1).

8. A packing robot for plastic bottles according to claim 7, characterized in that, The adjusting mechanism (5) includes a plurality of piston rods two (51) respectively slidably installed in the other end opening of the storage hole (7), and the bottom end of the pressure monitoring sensor (8) and the top end of the air storage groove (9) are both located between the corresponding piston rod two (51) and the corresponding electric control valve (13). A square cylinder (52) is sleeved on the top of the fixed cylinder (1), and the piston rod two (51) is connected to the square cylinder (52) through a connecting member (53).

9. The case-packing robot for plastic bottles according to claim 8, wherein, An accommodation groove (54) is formed in the inner wall of the opening at the other end of the air storage tank (9). A sealing ring (55) is slidably installed in the accommodation groove (54), and the inner ring wall of the sealing ring (55) is in contact with the outer peripheral wall of the corresponding second piston rod (51).

10. A packing robot for plastic bottles according to claim 9, characterized in that, The connecting member (53) includes a sliding groove (531) formed in the corresponding inner side wall of the square cylinder (52). A sliding block (532) is arranged in the sliding groove (531), and the sliding block (532) is fixedly connected to the corresponding second piston rod (51).

11. A case-packing robot for plastic bottles according to claim 10, characterized in that, The cross-sectional shape of the sliding groove (531) and the cross-sectional shape of the sliding block (532) are both arranged in a convex shape, and the part of the sliding block (532) located in the corresponding sliding groove (531) is in contact with the inner side wall of the corresponding sliding groove (531).

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