Automatic wine bottle cap stacking equipment

Abstract

The application discloses a kind of automatic stacking equipment of wine bottle cap, it is related to automatic stacking field, including equipment ontology, mechanical arm and drive rod, the bottom of the drive rod is movably connected with connecting frame, the bottom of the connecting frame is provided with fixed mechanism, the inside of the fixed mechanism is provided with taking and placing mechanism, the inside of the taking and placing mechanism is provided with suction disc ontology.The invention is connected with the single gear double rack structure of driving motor connection driving assembly, drives two groups of second mounting seat reverse constant speed movement, and then is driven by two groups of gear number doubling driven transmission assembly, drives two groups of first mounting seat to separate synchronously outward at faster speed, finally realizes the equidistance synchronous opening and closing adjustment of four groups of suction disc ontology, then drives multiple groups of suction disc ontology synchronous equidistance opening and closing, can adapt to different diameter, different arrangement pitch wine bottle cap grabbing demand, in the adjusting process, movable seat is synchronously slid along movable track, and the communication expansion pipe that adapts to interval change keeps closed throughout.

Description

Technical Field

[0001] This invention relates to the field of automatic palletizing, specifically to an automatic palletizing device for wine bottle caps. Background Technology

[0002] With the large-scale development of the liquor manufacturing industry and the continuous enrichment of bottle cap production capacity and product specifications, automatic palletizing is the core process in the subsequent production and packaging of bottle caps. Suction cup palletizing mechanisms are widely used in the transfer and palletizing of bottle caps due to their advantages of stable gripping and no damage to the workpiece.

[0003] Currently, the gripping end of the automatic bottle cap palletizing equipment requires the operator to adjust the installation position of each suction cup according to the specifications and spacing of the bottle caps to be palletized, tighten the fixing bolts to complete the positioning, and then connect a negative pressure air pipe to each suction cup individually. After the arrangement and fixing, the suction cups are connected to the negative pressure system. During the palletizing operation, the robotic arm drives the suction cup group to descend, the negative pressure is activated to adsorb the bottle caps, and after they are transferred to the tray, the negative pressure is released to complete the palletizing. When it is necessary to replace the suction cups or switch product specifications, the fixing bolts must be unscrewed one by one, the air pipe connectors must be disconnected, the old suction cups must be removed and replaced with new ones, and then the positions must be re-aligned and fixed.

[0004] However, the existing device has a messy air circuit layout. Each suction cup is equipped with an exposed air pipe, and the multiple air pipes are easily tangled and knotted. During the reciprocating motion of the mechanism, the air pipes are repeatedly pulled and bent, which can easily cause the pipes to age and crack, and the joints to leak and fall off. Secondly, the suction cup spacing is inconvenient to adjust. When switching between different sizes of bottle caps, the bolts need to be loosened one by one to adjust the position. Moreover, when replacing and maintaining the suction cups, multiple fasteners and air pipe joints need to be disassembled. The internal operating space of the equipment is limited, the disassembly and reassembly process is complicated, and the downtime for maintenance is long, which increases the production and maintenance costs. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic bottle cap palletizing device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automatic bottle cap palletizing device, comprising a device body, a robotic arm and a drive rod, wherein a connecting frame is movably connected to the bottom of the drive rod, a fixing mechanism is provided at the bottom of the connecting frame, a picking and placing mechanism is provided inside the fixing mechanism, and a suction cup body is provided inside the picking and placing mechanism. The fixing mechanism includes a fixed seat, a movable seat, and a mounting head. Two sets of fixed seats are fixedly installed at the bottom of the connecting frame, and multiple sets of movable seats are slidably installed between the two sets of fixed seats. The mounting head is rotatably installed on the top of the movable seat and is used to connect the negative pressure air circuit and dock with the fixed suction cup body. The picking and placing mechanism includes a fixed shell, a first mounting base, a second mounting base, and a placement cavity. The fixed shell is movably installed inside the fixed base. Two sets of first mounting bases and two sets of second mounting bases are slidably connected between the two sets of fixed shells. Each set of first mounting bases and second mounting bases has a placement cavity inside. The suction cup body includes a mounting cover and a connector. The mounting cover is disposed inside the placement cavity, and the connector is connected to the mounting head to form a negative pressure passage.

[0007] Preferably, the fixing mechanism further includes two sets of movable tracks, which are slidably installed inside the fixed seats on both sides. Movable blocks are fixedly connected to both sides of the movable seats. Movable grooves are opened inside the movable tracks, and the movable blocks are slidably connected inside the movable grooves to provide guidance for the lateral sliding of the movable seats.

[0008] Preferably, the upper and lower sides of the movable track are fixedly connected with fixing pins, and the outer wall of the fixing pin is fitted with a return spring. The movable track is slidably connected to the fixing seat through the fixing pins.

[0009] Preferably, the top of the movable seat is fixedly connected to a mounting bracket, the mounting head is rotatably mounted on the inner side of the mounting bracket, the interior of the movable seat has a connecting cavity through which the air supply passage passes, and the bottom of the movable seat is fixedly connected to two sets of pressure blocks, and the bottom of the pressure blocks is provided with an elastic rubber pad, which is used to press the top of the connector head to prevent it from falling off after installation.

[0010] Preferably, the picking and placing mechanism further includes a drive motor and an active transmission assembly. The drive motor is installed inside the fixed housing. The active transmission assembly consists of a set of gears and two sets of racks. The gears are fixedly connected to the output end of the drive motor. The two sets of racks are respectively fixedly connected to the same-direction sidewalls of the two sets of second mounting seats and are meshed with the gears.

[0011] Preferably, the picking and placing mechanism further includes two sets of driven transmission components. Each set of driven transmission components consists of a set of gears and two sets of racks. One set of racks is fixedly connected to the second mounting seat, and the other set of racks is fixedly connected to the first mounting seat, which moves in the opposite direction to the second mounting seat. The number of teeth of the gears in the driven transmission components is twice the number of teeth of the gears in the driving transmission components, so as to enable the first mounting seat and the second mounting seat to separate synchronously at a faster speed.

[0012] Preferably, each set of first mounting seats has two sets of sliding grooves on its top. A connecting rod is fixedly connected to the side of the first mounting seat near the second mounting seat. The connecting rod is slidably connected to the inside of the second mounting seat to provide support for the telescopic movement of the first mounting seat.

[0013] Preferably, the outer wall of the fixed shell is provided with a fixing hole that matches the fixing pin, and the cross-sectional size of the fixing hole matches the cross-sectional size of the fixing pin, so as to fix the fixed shell.

[0014] Preferably, the cross-sectional dimensions of the mounting cover are adapted to the cross-sectional dimensions of the placement cavity, and the mounting cover is embedded inside the placement cavity to achieve the positioning and installation of the suction cup body.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention utilizes a single-gear double-rack structure connected to a drive motor and an active transmission component to drive two sets of second mounting seats to move in opposite directions at the same speed. Then, through two sets of driven transmission components with doubled teeth, the two sets of first mounting seats are driven to separate outwards synchronously at a faster speed. This ultimately achieves equidistant synchronous opening and closing adjustment of the four suction cup bodies, subsequently driving multiple sets of suction cup bodies to open and close synchronously at the same distance. The spacing adjustment is controllable, adapting to the gripping needs of bottle caps of different diameters and arrangement spacings. During adjustment, the movable seat slides synchronously along the movable track, maintaining a completely sealed environment with an adaptive telescopic tube that changes the spacing. This eliminates the need for separate exposed flexible air pipes for each suction cup, preventing the problem of multiple air pipes being haphazardly arranged, tangled, and knotted. It also eliminates aging and cracking, joint leaks, and hook detachment caused by repeated pulling and bending of the pipes. Spacing adjustment is not hindered by the pipes, while maintaining the overall neatness and order of the equipment, improving long-term operational stability.

[0016] 2. This invention pre-embeds the suction cup body into the placement cavity of the pick-and-place mechanism to form a suction cup module. Simultaneously, mechanical locking and air circuit connection are completed. During maintenance and replacement, simply loosen the locking nut on the mounting head; the return spring will drive the movable seat and movable track upwards synchronously. The fixing pin will automatically disengage from the fixing hole in the fixing shell, releasing the lock. At the same time, the mounting head and connector will disengage from the air circuit connection, allowing the pick-and-place mechanism along with all the suction cups to be pulled out as a whole. There is no need to disassemble each air pipe or remove each fastener individually. Compared to the cumbersome process of disassembling and assembling each suction cup and connecting each air circuit individually in traditional multi-suction cup mechanisms, this design shortens replacement and maintenance time. When replacing with a new module, pressing down and tightening the nut simultaneously completes the positioning, locking, and air circuit connection, eliminating the need for repeated calibration. Combined with adjustable spacing adaptability, it can respond to production changes of different bottle cap specifications, effectively reducing the operational intensity of maintenance personnel and ensuring the continuity of palletizing production. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of some parts of the present invention; Figure 3 This is an exploded view of some parts of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of point A; Figure 5 This is a schematic diagram of the structure of the movable seat of the present invention; Figure 6 This is a schematic diagram of the structure of the active track of the present invention; Figure 7 This is an exploded view of the pick-and-place mechanism and the suction cup body of the present invention; Figure 8 This is a first-view structural diagram of the internal structure of the picking and placing mechanism of the present invention; Figure 9 This is a second-view structural diagram of the internal structure of the picking and placing mechanism of the present invention; Figure 10 This is a schematic diagram showing the unfolded arrangement of the first mounting base and the second mounting base of the present invention.

[0018] In the diagram: 1. Equipment body; 2. Robotic arm; 3. Drive rod; 4. Fixing mechanism; 40. Fixed seat; 41. Movable seat; 410. Mounting frame; 411. Connecting cavity; 412. Pressure block; 42. Movable track; 420. Movable groove; 421. Movable block; 43. Fixing pin; 430. Return spring; 44. Mounting head; 5. Picking and placing mechanism; 50. Fixed shell; 500. Fixing hole; 51. First mounting seat; 510. Sliding groove; 511. Connecting rod; 52. Second mounting seat; 53. Drive motor; 54. Active transmission assembly; 55. Driven transmission assembly; 56. Placement cavity; 6. Connecting telescopic tube; 7. Connecting frame; 8. Suction cup body; 80. Mounting cover; 81. Connecting head. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-10 The present invention provides the following technical solution: an automatic bottle cap palletizing device, including a device body 1, a robotic arm 2 and a drive rod 3, a connecting frame 7 movably connected to the bottom of the drive rod 3, a fixing mechanism 4 provided at the bottom of the connecting frame 7, a picking and placing mechanism 5 provided inside the fixing mechanism 4, and a suction cup body 8 provided inside the picking and placing mechanism 5. The conveying device transports the processed bottle caps to the working area of ​​the equipment body 1. The robotic arm 2 is then activated and adjusted to position the fixing mechanism 4 and the pick-and-place mechanism 5 directly above the conveying device. The angles of the fixing mechanism 4 and the pick-and-place mechanism 5 can then be adjusted via the drive rod 3 and the connecting frame 7 so that each set of suction cup bodies 8 is positioned directly above the bottle cap.

[0021] As one embodiment of the present invention, the fixing mechanism 4 includes a fixed seat 40, a movable seat 41 and a mounting head 44. Two sets of fixed seats 40 are fixedly installed at the bottom of the connecting frame 7, and multiple sets of movable seats 41 are slidably installed between the two sets of fixed seats 40. The mounting head 44 is rotatably installed on the top of the movable seat 41 for connecting the negative pressure air circuit and docking with the fixed suction cup body 8. Furthermore, the fixing mechanism 4 also includes two sets of movable rails 42, which are slidably installed inside the two fixed seats 40 on both sides. Movable blocks 421 are fixedly connected to both sides of the movable seat 41. Movable grooves 420 are opened inside the movable rails 42. The movable blocks 421 are slidably connected inside the movable grooves 420 to provide guidance for the lateral sliding of the movable seat 41. Fixed pins 43 are fixedly connected to the upper and lower sides of the movable rails 42. Return springs 430 are sleeved on the outer wall of the fixed pins 43. The movable rails 42 are slidably connected to the fixed seats 40 through the fixed pins 43. As the movable track 42 descends along with the movable base 41, the fixing pin 43 at the bottom of the movable track 42 inserts into the fixing hole 500, penetrates the fixing hole 500, and abuts against the inner bottom end of the fixing base 40, thereby completing the restriction of the fixing shell 50. Furthermore, the top of the movable seat 41 is fixedly connected to the mounting bracket 410, and the mounting head 44 is rotatably mounted on the inner side of the mounting bracket 410. The interior of the movable seat 41 is provided with a connecting cavity 411 through which the air supply passage passes. The bottom of the movable seat 41 is fixedly connected to two sets of pressure blocks 412, and the bottom of the pressure blocks 412 is provided with an elastic rubber pad, which is used to press the top of the connector 81 to prevent it from falling off after installation. The rotating mounting head 44 is rotatably connected to the movable seat 41 via the mounting bracket 410. A connecting cavity 411 is opened in the center of the movable seat 41 to provide space for the connection between the mounting head 44 and the connector head 81.

[0022] As one embodiment of the present invention, the pick-and-place mechanism 5 includes a fixed shell 50, a first mounting base 51, a second mounting base 52 and a placement cavity 56. The fixed shell 50 is movably installed inside the fixed base 40. Two sets of first mounting bases 51 and two sets of second mounting bases 52 are slidably connected between the two sets of fixed shells 50. Each set of first mounting bases 51 and second mounting bases 52 has a placement cavity 56 inside. Furthermore, the pick-and-place mechanism 5 also includes a drive motor 53 and an active transmission assembly 54. The drive motor 53 is installed inside the fixed housing 50. The active transmission assembly 54 consists of a set of gears and two sets of racks. The gears are fixedly connected to the output end of the drive motor 53. The two sets of racks are respectively fixedly connected to the same-direction sidewalls of the two sets of second mounting seats 52 and are meshed with the gears. In the example, the pick-and-place mechanism 5 also includes two sets of driven transmission components 55. Each set of driven transmission components 55 consists of a set of gears and two sets of racks. One set of racks is fixedly connected to the second mounting base 52, and the other set of racks is fixedly connected to the first mounting base 51, which moves in the opposite direction to the second mounting base 52. The number of teeth on the gears of the driven transmission component 55 is twice the number of teeth on the gears of the driving transmission component 54, so as to enable the first mounting base 51 and the second mounting base 52 to separate synchronously at a faster speed. The driven transmission assembly 55 on the other side of the second mounting base 52 is also composed of gears and racks. The second mounting base 52 meshes with the gears in the driven transmission assembly 55 through the rack that is fixedly connected, driving another set of racks to move in the opposite direction. The other set of racks is fixedly connected to a set of first mounting bases 51 that move in the opposite direction to the second mounting base 52. The number of teeth in the gear in the driven transmission assembly 55 is greater than the number of teeth in the gear in the driving transmission assembly 54, and the number of teeth in the gear in the driven transmission assembly 55 is twice the number of teeth in the gear in the driving transmission assembly 54. When the two sets of second mounting seats 52 are moved in opposite directions by the driving transmission assembly 54, the two sets of first mounting seats 51 will separate from the second mounting seats 52 at a speed greater than that of the second mounting seats 52. Two sets of sliding grooves 510 are provided on the top of each first mounting base 51. A connecting rod 511 is fixedly connected to the side of the first mounting base 51 near the second mounting base 52. The connecting rod 511 is slidably connected to the inside of the second mounting base 52 to provide support for the telescopic movement of the first mounting base 51. In the example, the outer wall of the fixed shell 50 is provided with a fixing hole 500 that is adapted to the fixing pin 43, and the cross-sectional size of the fixing hole 500 matches the cross-sectional size of the fixing pin 43, so as to fix the fixed shell 50.

[0023] As one embodiment of the present invention, the suction cup body 8 includes a mounting cover 80 and a connector 81. The mounting cover 80 is disposed inside the placement cavity 56, and the connector 81 is connected to the mounting head 44 to form a negative pressure passage. The cross-sectional dimensions of the mounting cover 80 are adapted to the cross-sectional dimensions of the placement cavity 56, and the mounting cover 80 is embedded inside the placement cavity 56 to realize the positioning and installation of the suction cup body 8. As the movable track 42 descends along with the movable base 41, the fixing pin 43 at the bottom of the movable track 42 inserts into the fixing hole 500 and passes through the fixing hole 500, pressing against the bottom of the inner side of the fixing base 40, thus restricting the fixing shell 50. After the mounting head 44 is connected to the connector head 81, the pressure block 412 presses against the top of the connector head 81, thus restricting the connector head 81 and preventing the suction cup body 8 from detaching during operation.

[0024] Working principle: When in use, after the power is turned on, the conveying device will first transport the processed bottle caps to the working area of ​​the equipment body 1. The robotic arm 2 will start and adjust its position so that the fixing mechanism 4 and the picking and placing mechanism 5 are positioned directly above the conveying device. Then, the angle of the fixing mechanism 4 and the picking and placing mechanism 5 can be adjusted through the drive rod 3 and the connecting frame 7 so that each set of suction cup bodies 8 is positioned directly above the bottle cap. Then, the robotic arm 2 lowers the fixing mechanism 4 and the picking and placing mechanism 5 via the drive rod 3. Then the suction cup body 8 will contact the top of the bottle cap. After the suction cup body 8 is activated by the negative pressure device, it will adsorb the bottle cap. Then the robotic arm 2 can put the bottle cap into the tray. Different sizes of bottle caps have different specifications, so the spacing between bottle caps on the conveying device is also different. Therefore, in order to accommodate bottle caps of different sizes, a drive motor 53 is installed inside the fixed shell 50, and the output end of the drive motor 53 is connected to the active transmission component 54. The active transmission component 54 consists of a gear and two sets of racks, with the gear and the two sets of racks meshing with each other. The two sets of racks are fixedly connected to two sets of second mounting seats 52 respectively. On the other side of the first mounting seat 51 and the second mounting seat 52, they are driven by two sets of driven transmission components 55. When the drive motor 53 starts, its output end is fixedly connected to the gear in the active transmission assembly 54. Therefore, the gear will be driven to rotate by the drive motor 53, and then drive the two sets of racks to move in opposite directions, thereby causing the two sets of second mounting seats 52 to move in opposite directions. The driven transmission assembly 55 on the other side of the second mounting base 52 is also composed of gears and racks. The second mounting base 52 meshes with the gears in the driven transmission assembly 55 through the rack that is fixedly connected, driving another set of racks to move in the opposite direction. The other set of racks is fixedly connected to a set of first mounting bases 51 that move in the opposite direction to the second mounting base 52. The number of teeth in the gear in the driven transmission assembly 55 is greater than the number of teeth in the gear in the driving transmission assembly 54, and the number of teeth in the gear in the driven transmission assembly 55 is twice the number of teeth in the gear in the driving transmission assembly 54. When the two sets of second mounting seats 52 are moved in opposite directions by the driving transmission assembly 54, the two sets of first mounting seats 51 will separate from the second mounting seats 52 at a speed greater than that of the second mounting seats 52. Therefore, after the drive motor 53 starts, through the cooperation of the active transmission component 54 and the two sets of driven transmission components 55, the two sets of second mounting seats 52 and the two sets of first mounting seats 51 can be separated synchronously and at equal distances. Both the first mounting base 51 and the second mounting base 52 have placement cavities 56. The suction cup body 8 is installed inside the placement cavity 56 through the mounting cover 80, and the connector 81 is connected to the mounting head 44. The mounting head 44 is connected to the connecting telescopic tube 6. So after the suction cup body 8 is moved at equal distances, it will be separated from the movable base 41 through multiple sets of mounting heads 44, and the connecting telescopic tube 6 will also open at the same time. Two sets of first mounting seats 51 have sliding grooves 510 on their tops. When the two sets of first mounting seats 51 move outward from the fixed housing 50, they will separate from the second mounting seat 52 along with the connecting rod 511. The connecting rod 511 provides sufficient support for the first mounting seat 51. When the sliding groove 510 moves to its limit distance, the first mounting seat 51 will no longer be able to move outward from the fixed housing 50. When it is necessary to replace the suction cup body 8, the user can use a tool to loosen the nut on the outer wall of the mounting head 44, thereby detaching the mounting head 44 from the connector 81. After multiple sets of mounting heads 44 are detached from the connector 81, the movable seat 41 will release the restriction on the first mounting seat 51 and the second mounting seat 52. Under the elastic action of the return spring 430, the movable seat 41 and the movable track 42 move upward synchronously within the fixed seat 40, and then the fixed pin 43 will disengage from the fixed hole 500, thereby releasing the restriction on the fixed shell 50. At this time, the user can take out the entire pick-up and put-down mechanism 5. After placing a new set of suction cup bodies 8 into the placement cavity 56, fix the position of the suction cup bodies 8, and then place them into the fixing seat 40. Then press down the connecting telescopic tube 6, which will bring down multiple sets of mounting heads 44 and multiple sets of movable seats 41 simultaneously. The movable seats 41 are simultaneously moved by the cooperation of the movable blocks 421 and the movable grooves 420 on both sides, so that the movable track 42 moves down synchronously. Until the pressure block 412 abuts against the top of the connector 81, the mounting head 44 is rotated. The mounting head 44 is rotatably connected to the movable seat 41 via the mounting bracket 410. A connecting cavity 411 is opened in the center of the movable seat 41 to provide space for the connection between the mounting head 44 and the connector 81. As the movable track 42 descends along with the movable base 41, the fixing pin 43 at the bottom of the movable track 42 will be inserted into the fixing hole 500 and pass through the fixing hole 500, pressing against the bottom of the inner side of the fixing base 40, thus completing the restriction of the fixing shell 50. After the mounting head 44 is connected to the connector head 81, the pressure block 412 will press against the top of the connector head 81, thus completing the restriction of the connector head 81 and preventing the suction cup body 8 from detaching during operation. With the above structure, the spacing between multiple suction cup bodies 8 can be adjusted according to the spacing of the bottle cap, and multiple suction cup bodies 8 can be disassembled as a whole when replacing them, making it easy to replace the suction cup bodies 8. It should be emphasized that the gear and rack transmission principle, slider and groove transmission principle, working principle of robotic arm 2, and negative pressure adsorption principle of suction cup body 8 involved in this invention are all existing known technologies. At the same time, the specific models of gears and racks, the specific models of drive motor 53, and the elastic coefficient of return spring 430 need to be flexibly adjusted according to actual use, and will not be discussed in detail.

[0025] To further illustrate the technical means and effects adopted by the present invention in order to achieve the intended purpose, the following detailed description is provided in conjunction with the accompanying drawings and preferred embodiments, based on the specific implementation methods, structures, features and effects of the present invention.

[0026] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An automatic bottle cap palletizing device, comprising a device body (1), a robotic arm (2), and a drive rod (3), characterized in that: The bottom of the drive rod (3) is movably connected to a connecting frame (7), and the bottom of the connecting frame (7) is provided with a fixing mechanism (4). The inside of the fixing mechanism (4) is provided with a pick-and-place mechanism (5), and the inside of the pick-and-place mechanism (5) is provided with a suction cup body (8). The fixing mechanism (4) includes a fixed seat (40), a movable seat (41) and a mounting head (44). Two sets of fixed seats (40) are fixedly installed at the bottom of the connecting frame (7). Multiple sets of movable seats (41) are slidably installed between the two sets of fixed seats (40). The mounting head (44) is rotatably installed on the top of the movable seat (41) for connecting the negative pressure air circuit and docking with the fixed suction cup body (8). The picking and placing mechanism (5) includes a fixed shell (50), a first mounting base (51), a second mounting base (52), and a placement cavity (56). The fixed shell (50) is movably installed inside the fixed base (40). Two sets of first mounting bases (51) and two sets of second mounting bases (52) are slidably connected between the two sets of fixed shells (50). Each set of first mounting bases (51) and second mounting bases (52) has a placement cavity (56) inside. The suction cup body (8) includes a mounting cover (80) and a connector (81). The mounting cover (80) is disposed inside the placement cavity (56), and the connector (81) is connected to the mounting head (44) to form a negative pressure passage.

2. The automatic bottle cap palletizing equipment according to claim 1, characterized in that: The fixing mechanism (4) also includes two sets of movable rails (42). The two sets of movable rails (42) are slidably installed inside the two fixed seats (40) on both sides. Movable blocks (421) are fixedly connected to both sides of the movable seat (41). Movable grooves (420) are opened inside the movable rails (42). The movable blocks (421) are slidably connected inside the movable grooves (420) to provide guidance for the lateral sliding of the movable seat (41).

3. The automatic bottle cap palletizing equipment according to claim 2, characterized in that: The upper and lower sides of the movable track (42) are fixedly connected with fixing pins (43), and the outer wall of the fixing pins (43) is fitted with a return spring (430). The movable track (42) is slidably connected to the fixed seat (40) through the fixing pins (43).

4. The automatic bottle cap palletizing equipment according to claim 1, characterized in that: The top of the movable seat (41) is fixedly connected to the mounting bracket (410), and the mounting head (44) is rotatably mounted on the inner side of the mounting bracket (410). The interior of the movable seat (41) is provided with a connecting cavity (411) through which the air supply passage passes. The bottom of the movable seat (41) is fixedly connected to two sets of pressure blocks (412), and the bottom of the pressure blocks (412) is provided with an elastic rubber pad, which is used to press the top of the connector (81) to prevent it from falling off after installation.

5. The automatic bottle cap palletizing equipment according to claim 1, characterized in that: The picking and placing mechanism (5) also includes a drive motor (53) and an active transmission assembly (54). The drive motor (53) is installed inside the fixed housing (50). The active transmission assembly (54) consists of a set of gears and two sets of racks. The gears are fixedly connected to the output end of the drive motor (53). The two sets of racks are fixedly connected to the same-direction sidewalls of the two sets of second mounting seats (52) respectively, and both mesh with the gears.

6. The automatic bottle cap palletizing equipment according to claim 5, characterized in that: The picking and placing mechanism (5) also includes two sets of driven transmission components (55). Each set of driven transmission components (55) consists of a set of gears and two sets of racks. One set of racks is fixedly connected to the second mounting seat (52), and the other set of racks is fixedly connected to the first mounting seat (51) which moves in the opposite direction to the second mounting seat (52). The number of teeth of the gears in the driven transmission component (55) is twice the number of teeth of the gears in the active transmission component (54), which is used to enable the first mounting seat (51) and the second mounting seat (52) to separate synchronously at a faster speed.

7. The automatic bottle cap palletizing equipment according to claim 1, characterized in that: Two sets of sliding grooves (510) are provided on the top of each first mounting base (51). A connecting rod (511) is fixedly connected to the side of the first mounting base (51) near the second mounting base (52). The connecting rod (511) is slidably connected to the inside of the second mounting base (52) to provide support for the telescopic movement of the first mounting base (51).

8. The automatic bottle cap palletizing equipment according to claim 3, characterized in that: The outer wall of the fixed shell (50) is provided with a fixing hole (500) that is adapted to the fixing pin (43), and the cross-sectional size of the fixing hole (500) matches the cross-sectional size of the fixing pin (43) to achieve the fixing of the fixed shell (50).

9. The automatic bottle cap palletizing equipment according to claim 1, characterized in that: The cross-sectional dimensions of the mounting cover (80) are adapted to the cross-sectional dimensions of the placement cavity (56), and the mounting cover (80) is embedded inside the placement cavity (56) to achieve the positioning and installation of the suction cup body (8).

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