Automatic splitting and pinching equipment and method for spraying wine cover

Abstract

The present application relates to the technical field of wine cap production, and provides a kind of spray plating wine cap automatic split pinch cap equipment and method, equipment includes index workbench and the sequentially arranged upper feeding device, punching device, a plurality of pinch cap devices, front unloading device and rear unloading device along its circumference;Index workbench is equipped with multiple support tool along its circumference, and upper feeding device is used to transfer wine cap to support tool;Punching device is used to apply force to the top surface of downward sleeve, so that it is separated from upper sleeve;Pinch cap device includes pinch mechanism and cap screwing mechanism, pinch mechanism is used to pinch and extrude upper sleeve from radial, and cap screwing mechanism is used to drive wine cap to rotate;Front unloading device is used to transfer the upper sleeve and its internal structure after splitting, and rear unloading device is used to transfer the lower sleeve after splitting.The present application replaces manual picking and pinching operation, and makes operation force uniform through automatic equipment, avoids scratching wine cap appearance surface, simultaneously improves splitting efficiency, and reduces manual labor intensity.

Description

Technical Field

[0001] This invention relates to the field of wine cap production technology, and more specifically, to an automatic disassembly and pinching device and method for spray-coated wine caps. Background Technology

[0002] Some existing wine bottle caps (hereinafter referred to as wine caps) such as Figure 1 As shown, it consists of an outer cap 901, an upper outer sleeve 902 and a lower outer sleeve 903, an inner cap 904, an inner sleeve 905, and an inner plug 906. In actual manufacturing processes, to reduce injection molding costs, the upper outer sleeve 902 and the lower outer sleeve 903 are usually injection molded as a single piece. After injection molding, the two are connected as one piece by several easily breakable ribs 9031. In addition, to reduce electroplating (or spraying) processing costs, currently, after the bottle cap 9 is assembled, the outer cap 901, the upper outer sleeve 902, and the lower outer sleeve 903 are electroplated (or sprayed) together. After electroplating (or spraying), the electroplated layer (coating) will form a continuous adhesive layer in the gap between the outer cap 901 and the upper outer sleeve 902. Subsequently, the adhesive layer needs to be broken to ensure that the bottle cap 9 can be opened normally. Moreover, after electroplating (or spraying), the upper outer sleeve 902 and the lower outer sleeve 903 need to be separated before subsequent processes such as printing and hot stamping can be carried out.

[0003] However, there is currently no dedicated equipment to perform the above two actions (i.e., separating the upper and lower jackets and breaking the adhesive layer at the gap between the outer cover and the upper jacket). It mostly relies on manual prying and kneading with hand tools, which makes it difficult to control the force uniformly, easily scratching the electroplated surface, resulting in low disassembly efficiency and high manual labor intensity. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic cap-removing and pinching device and method for spray-coated wine caps, so as to solve the above-mentioned defects of the prior art.

[0005] This invention is achieved through the following technical solution: An automatic cap-splitting and cap-disassembling device for spray-plated wine caps includes an indexing worktable and a feeding device, a stamping device, several cap-splitting devices, a front unloading device, and a rear unloading device arranged sequentially along its circumference. The indexing worktable is provided with multiple support fixtures along its circumference for carrying wine caps, and the feeding device is used to transfer the wine caps onto the support fixtures. The stamping device includes a stamping actuator and a stamping head. The stamping actuator is used to drive the stamping head to rise and fall, so as to apply a force to the top surface of the lower outer jacket and separate it from the upper outer jacket. The capping device includes a pinching mechanism and a capping mechanism. The pinching mechanism can move horizontally closer to the cap and squeeze the upper outer sleeve radially. The capping mechanism can press the cap and drive it to rotate so that after the upper outer sleeve has been pinched once, the cap can be rotated to the target angle before the next pinch is performed. The front unloading device is used to transfer the disassembled upper jacket and its internal structure to the target position, and the rear unloading device is used to transfer the disassembled lower jacket to the target position.

[0006] Optionally, the clamping mechanism includes a clamping drive, a clamping translation component, and a pair of clamping claws. The clamping drive is used to drive the pair of clamping claws to move closer or further away from each other to extrude the upper jacket. The clamping translation component is used to drive the clamping claws to move closer or further away from the supporting fixture.

[0007] Optionally, the capping mechanism includes a capping head, a capping drive, and a capping lifting component. The capping lifting component is used to drive the capping head to move up and down to press against or move away from the cap, and the capping drive is used to drive the capping head to rotate so as to drive the cap to rotate.

[0008] Optionally, the cap lifting component includes a support base, a cap-screwing double-headed cylinder, a limiting screw, and a limiting nut. Two support bases are arranged side by side along the lifting direction. The piston rod of the cap-screwing double-headed cylinder is fixedly connected between the two support bases. The cap-screwing drive component is mounted on a mounting base, and the mounting base is fixedly connected to the cylinder body of the cap-screwing double-headed cylinder. One end of the limiting screw is fixedly connected to the cap-screwing double-headed cylinder, and the other end passes through the top of the support base. The limiting nut is connected to the limiting screw and is located above the support base.

[0009] Optionally, the supporting fixture includes a fixture support and a mandrel. The fixture support is fixedly connected to the indexing worktable, and the mandrel is connected to the fixture support. The mandrel has a clearance section and a positioning section with progressively increasing diameters from top to bottom. The top of the clearance section has a positioning hole that can mate with the outer wall of the inner plug. The upper outer sleeve and its internal structure are supported by the top surface of the clearance section or the bottom of the positioning hole. The outer diameter of the positioning section can mate with the inner wall of the lower outer sleeve. The lower end of the positioning section has a supporting step to support the lower outer sleeve after it is separated from the upper outer sleeve.

[0010] Optionally, the tooling support includes a tooling base and a support sleeve. The tooling base is fixedly connected to the indexing worktable, and the support sleeve is threadedly connected to the tooling base. The mandrel is inserted inside the support sleeve, and the mandrel is connected to the support sleeve through a bearing.

[0011] Optionally, the feeding device and the front unloading device have the same structure, both including a suction cup, a first material transfer lifting drive and a first material transfer translation drive. The first material transfer lifting drive is used to drive the suction cup to lift, and the first material transfer translation drive is used to drive the suction cup to translate.

[0012] Optionally, the post-feeding device includes a second material transfer lifting drive, a second material transfer translation drive, a clamping drive, and a pair of material picking claws. The clamping drive is used to drive the pair of material picking claws to move closer or further apart to clamp the lower outer sleeve. The second material transfer lifting drive is used to drive the clamping drive to lift and lower, and the second material transfer translation drive is used to drive the clamping drive to translate.

[0013] Optionally, a pre-pressing device is provided before the stamping device. The pre-pressing device includes a pre-pressing actuator and a pre-pressing head. The pre-pressing actuator is used to drive the pre-pressing head to rise and fall, so as to apply force to the top surface of the bottle cap, so as to accurately position the bottle cap placed on the support fixture.

[0014] The present invention also provides an automatic cap-removing and pinching method for spray-plated wine caps, using the equipment described in the previous item, and comprising the following steps in sequence: S1. Loading: The loading device transfers the wine caps to be disassembled to the support fixture on the indexing worktable. The loading device loads the wine caps one time for each indexing worktable rotation, and the wine caps are transported to each workstation in sequence. S2, Pre-compression: The pre-compression device presses the cap downwards to accurately position the cap and the support fixture. S3, Stamping: The stamping device applies a downward force to the top surface of the lower outer jacket, causing the lower outer jacket to separate from the upper outer jacket; S4, Capping: The capping mechanism of the first capping device moves horizontally closer to the bottle cap and clamps and squeezes the upper outer sleeve from the radial direction. Before the capping mechanism of the next capping device squeezes the upper outer sleeve, the capping mechanism first rotates the bottle cap to the target angle until all capping devices have completed the squeezing of the upper outer sleeve. S5. First unloading: The front unloading device removes the disassembled upper jacket and its internal structure from the support fixture and transfers them to the target position; S6. Second feeding: The rear feeding device removes the lower outer jacket from the support fixture and transfers it to the target position.

[0015] The technical solution of the present invention has at least the following advantages and beneficial effects: In the present invention, by arranging the feeding device, stamping device, several cap pinching devices, front unloading device and rear unloading device in sequence along the indexing working circumference, and cooperating with the supporting fixture to carry the wine cap, it is possible to realize automatic feeding of wine cap, stamping separation of the lower outer cover and the upper outer cover, multiple extrusions from different directions to break the electroplated (or sprayed) adhesive layer at the gap between the outer cover and the upper outer cover, and automatic sorting and unloading of each component after disassembly, thereby replacing manual prying and kneading operations. The automated equipment makes the operating force uniform, avoids scratching the appearance of the wine cap, and at the same time improves the disassembly efficiency and reduces the intensity of manual labor.

[0016] The stamping device applies force to the top surface of the lower outer cover to achieve initial separation between the lower and upper outer covers. Meanwhile, multiple cap-pinching devices radially squeeze the upper outer cover through a pinching mechanism and, in conjunction with a cap-screwing mechanism, rotate the cap to a target angle before each squeeze. This causes the upper outer cover to be squeezed at multiple different positions in the circumference, thereby causing the continuous adhesive layer at the gap between the outer cap and the upper outer cover to break under multi-directional forces. This ensures that the adhesive layer is completely broken and avoids damage to the appearance of the cap. Attached Figure Description

[0017] Figure 1 A cross-sectional view of a wine cap provided for the prior art; Figure 2 This is a schematic diagram of the structure of an automatic cap-removing and pinching device for spray-plated wine caps provided in Example 1; Figure 3 This is a top view of an automatic cap-removing and pinching device for spray-coated wine caps provided in Example 1; Figure 4 This is a schematic diagram of the indexing worktable. Figure 5 A sectional view of the supporting tooling; Figure 6 A schematic diagram showing the state after the bottle cap and supporting fixture are accurately positioned; Figure 7 This is a schematic diagram of the feeding device. Figure 8 This is a schematic diagram of the post-feeding device; Figure 9 This is a schematic diagram of the pre-compression device; Figure 10 This is a schematic diagram of the stamping device. Figure 11 This is a schematic diagram of the installation structure of the cap-squeezing device; Figure 12 This is a schematic diagram of the clamping mechanism. Figure 13 Schematic diagram of the capping mechanism Figure 1 ; Figure 14 Schematic diagram of the capping mechanism Figure 2 ; Reference numerals: 1-Indexing table, 2-Support fixture, 201-Tooling support, 2011-Tooling base, 2012-Support sleeve, 202-Mandrel, 2021-Allowing section, 2022-Positioning section, 2023-Positioning hole, 2024-Supporting step, 203-Bearing, 3-Feeding device, 301-Suction cup, 302-First material transfer lifting drive, 303-First material transfer translation drive, 304-Material transfer frame, 4-Pre-pressing device, 401-Pre-pressing actuator, 402-Pre-pressing head, 403-Pre-pressing frame, 5-Punching device, 501-Punching actuator, 502-Punching head, 503-Punching frame, 6-Cap pinching device, 61-Clamping mechanism, 61 1-Clamping drive component, 612-Clamping translation component, 613-Clamping claw, 614-Clamping frame, 62-Capping mechanism, 621-Capping head, 622-Capping drive component, 623-Support base, 624-Capping double-head cylinder, 625-Limit screw, 626-Limit nut, 627-Mounting base, 7-Front unloading device, 8-Rear unloading device, 801-Second material transfer lifting drive component, 802-Second material transfer translation drive component, 803-Clamping drive component, 804-Material picking claw, 805-Unloading frame, 9-Wine cap, 901-Outer cap, 902-Upper outer sleeve, 903-Lower outer sleeve, 9031-Easily broken rib, 904-Inner cap, 905-Inner sleeve, 906-Inner plug. Detailed Implementation

[0018] Example 1 refer to Figure 2 and Figure 3 This embodiment provides an automatic cap-squeezing device for spray-plated wine caps 9, including a dividing worktable 1 and a feeding device 3, a stamping device 5, several cap-squeezing devices 6, a front unloading device 7 and a rear unloading device 8 arranged sequentially along its circumference. It should be understood that each device is fixedly installed on a fixed component of the dividing worktable 1 and does not rotate with the dividing worktable 1.

[0019] Those skilled in the art will understand that the indexing table 1 performs a step-by-step intermittent rotary motion under the drive of a corresponding driving mechanism (not shown, such as a cam divider). The indexing table 1 has multiple support fixtures 2 (see reference) along its circumference for supporting the wine caps 9. Figure 4The supporting fixture 2 provides stable support and positioning for the bottle caps 9 during the rotation of the indexing table 1, ensuring that the bottle caps 9 maintain the correct posture at each workstation, so that each device can perform the corresponding processing action. Those skilled in the art should understand that each rotation of the indexing table 1 causes the corresponding supporting fixture 2 to rotate to the next workstation. In practical applications, each device can work simultaneously and independently, improving efficiency. Each time a device works, the indexing table 1 rotates once. As a preferred embodiment, in this embodiment, the angle of each rotation of the indexing table 1 is twice the angle between two adjacent supporting fixtures 2. In this way, two bottle caps 9 can be processed simultaneously, improving efficiency. Based on this, it should be understood that the structures in each device that realize the corresponding processing action should be provided in duplicate.

[0020] The feeding device 3 is located at the feeding station of the indexing worktable 1. In practical applications, a feeding conveyor line (not shown in the figure) can be configured. When the bottle cap 9 arrives at the feeding device 3, the feeding device 3 transfers the bottle cap 9 to be disassembled from the feeding conveyor to the support fixture 2, realizing automatic feeding of the bottle cap 9. The stamping device 5 is used to apply force to the top surface of the lower outer sleeve 903, separating it from the upper outer sleeve 902. The cap pinching device 6 is used to repeatedly squeeze from different directions to break the electroplated (or sprayed) adhesive layer at the gap between the outer cap 901 and the upper outer sleeve 902. The front unloading device 7 is used for automatic unloading of the upper outer sleeve 902 and its internal structure as a whole, and the rear unloading device 8 is used for automatic unloading of the lower outer sleeve 903. This replaces manual prying and kneading operations, and the automated equipment ensures uniform operating force, avoiding scratches on the appearance of the bottle cap 9, while improving disassembly efficiency and reducing manual labor intensity.

[0021] Because the bottle cap 9 may not be fully positioned during the transfer process from the feeding device 3 to the supporting fixture 2, direct subsequent stamping and separation may result in skewed stamping force, causing damage to the bottle cap 9 or poor separation effect. Therefore, in this embodiment, a pre-pressing device 4 is provided before the stamping device 5 (which is easily understood to be after the feeding device 3). [Reference] Figure 9 The pre-compression device 4 includes a pre-compression actuator 401 and a pre-compression head 402. The pre-compression actuator 401 is preferably a cylinder, with its cylinder body fixedly mounted on the pre-compression frame 403. Its piston rod is connected to the pre-compression head 402, thereby driving the pre-compression head 402 to rise and fall. Under the action of the pre-compression actuator 401, the pre-compression head 402 can press down against the top surface of the wine cap 9, applying a downward force to the wine cap 9, so that the wine cap 9 and the supporting fixture 2 are accurately positioned.

[0022] refer to Figure 5 and Figure 6In this embodiment, the supporting fixture 2 includes a fixture support 201 and a mandrel 202. The fixture support 201 is fixedly connected to the indexing table 1 and rotates synchronously with the indexing table 1. The mandrel 202 is connected to the fixture support 201 and extends vertically to pass through the inside of the bottle cap 9, providing radial positioning and axial support for the bottle cap 9. The mandrel 202 has a clearance section 2021 and a positioning section 2022 with progressively increasing diameters from top to bottom. It is easy to understand that the outer diameter of the clearance section 2021 is smaller than the inner diameter of the internal components of the upper outer sleeve 902 (such as the inner cap 904, inner sleeve 905, etc.) to avoid interference with the upper outer sleeve 902 and its internal structure during the stamping separation and cap squeezing process. The top of the clearance section 2021 is provided with a positioning hole 2023, which can cooperate with the outer wall of the inner plug 906. That is, the lower end of the inner plug 906 is inserted into the positioning hole 2023, realizing the initial positioning of the bottle cap 9 on the spindle 202. At the same time, in this embodiment, the top surface of the clearance section 2021 supports the upper bottom surface of the inner plug 906 (in other embodiments, the bottom of the positioning hole 2023 can also support the inner plug 9), thereby achieving the purpose of supporting the entire bottle cap 9 before it is disassembled.

[0023] The positioning section 2022 is located below the clearance section 2021, and its outer diameter is adapted to the inner wall of the lower outer sleeve 903. In practical applications, the outer diameter of the positioning section 2022 is preferably 0.3-0.5mm smaller than the inner diameter of the lower outer sleeve 903 to facilitate the smooth pressing of the lower outer sleeve 903. The lower end of the positioning section 2022 is provided with a support step 2024 to support the lower outer sleeve 903 after it is separated from the upper outer sleeve 902. It should be understood that after the cap 9 is fully placed on the spindle 202 (i.e., the top surface of the spindle 202 abuts against the inner plug 906), there should be a distance between the bottom surface of the lower outer sleeve 903 and the support step 2024 (this distance should be greater than or equal to the stamping stroke). The lower outer sleeve 903 is only supported by the support step 2024 after being punched out by the stamping device 5.

[0024] Since one of the actions of the cap-pinching device 6 is to rotate the bottle cap 9, to ensure smooth rotation, this embodiment also makes the following improvements to the support fixture 2. The fixture support 201 includes a fixture base 2011 and a support sleeve 2012. The fixture base 2011 is fixedly connected to the indexing table 1, and the support sleeve 2012 is threadedly connected to the fixture base 2011. The spindle 202 is inserted inside the support sleeve 2012, and the spindle 202 and the support sleeve 2012 are connected by a bearing 203. In this way, when the bottle cap 9 rotates, the spindle 202 rotates together, and the bearing 203 between the spindle 202 and the support sleeve 2012 can greatly reduce friction.

[0025] refer to Figure 1 and Figure 7The feeding device 3 and the front unloading device 7 have the same structure, both employing a suction cup 301-type material-grabbing structure to achieve flexible gripping of the wine cap 9. Specifically, both the feeding device 3 and the front unloading device 7 include a suction cup 301, a first material transfer lifting drive 302, and a first material transfer translating drive 303, both of which are cylinders. The suction cup 301 is mounted on a suction cup base. Those skilled in the art should understand that in practical applications, a corresponding vacuuming component (not shown in the figure, such as a vacuum generator, control valve, vacuum pipeline, etc.) should be configured to generate negative pressure in the suction cup 301 to achieve the purpose of gripping the wine cap 9.

[0026] The piston rod of the first material transfer lifting drive 302 is connected to the suction cup seat, and the piston rod of the first material transfer translation drive 303 is connected to the cylinder of the first material transfer lifting drive 302. The cylinder of the first material transfer translation drive 303 is fixedly mounted on the material transfer frame 304. When the first material transfer lifting drive 302 is working, it can drive the suction cup 301 to rise and fall, so as to move the suction cup 301 closer to or away from the wine cap 9. When the first material transfer translation drive 303 is working, it drives the suction cup 301 (and the first material transfer lifting drive 302) to move horizontally, so as to transfer the wine cap 9 from the loading position to the support fixture 2. Those skilled in the art should understand that in other embodiments, the first material transfer lifting drive 302 and the first material transfer translation drive 303 can of course also be linear drive elements such as electric cylinders or linear modules. In addition, in other embodiments, the loading device 3 can of course also adopt a gripper-type material picking structure, which uses a pair of openable grippers to hold the outer wall of the wine cap 9 for transfer.

[0027] refer to Figure 8 The post-feeding device 8 includes a second material transfer lifting drive 801, a second material transfer translation drive 802, a clamping drive 803, and a pair of material-picking claws 804. In this embodiment, the clamping drive 803 is preferably a finger cylinder (also called a pneumatic finger, pneumatic gripper, etc.), and the pair of gripping claws 613 are connected to the two fingers of the finger cylinder in a one-to-one correspondence. When the clamping drive 803 is working, it drives the pair of material-picking claws 804 to move closer or further apart. When the pair of material-picking claws 804 move closer together, the material-picking claws 804 clamp the outer wall of the lower outer sleeve 903 from opposite sides; when the pair of material-picking claws 804 move further apart, they release the clamping of the lower outer sleeve 903. The second material transfer lifting drive 801 and the second material transfer translation drive 802 are preferably cylinders. The cylinder body of the second material transfer translation drive 802 is fixedly installed on the unloading frame 805. The piston rod of the second material transfer translation drive 802 is connected to the cylinder body of the second material transfer lifting drive 801. The piston rod of the second material transfer lifting drive 801 is connected to the clamping drive 803.

[0028] When the second material transfer lifting drive 801 is working, it drives the clamping drive 803 and the picking gripper 804 to rise and fall as a whole, thereby adjusting the position of the picking gripper 804 in the vertical direction. When the second material transfer translation drive 802 is working, it drives the second material transfer lifting drive 801, the clamping drive 803, and the picking gripper 804 to translate as a whole in the horizontal direction, thereby transferring the lower outer sleeve 903 from the support fixture 2 to the target position. In practical applications, the picking gripper 804 can be set as an arc-shaped structure that matches the outer wall of the lower outer sleeve 903. To avoid damaging the appearance of the upper and lower outer sleeves 903, an elastic pad (not shown in the figure, such as a silicone pad, polyurethane pad, or rubber pad) can be provided on the inner side of the picking gripper 804.

[0029] In practical applications, feeding channels (not shown in the figure) can be set at the front feeding device 7 and the rear feeding device 8 respectively, and corresponding collection frames (not shown in the figure) can be set at the end of the feeding channels to achieve the classified collection of the upper outer jacket 902 (and its internal structure) and the lower outer jacket 903.

[0030] refer to Figure 10 The stamping device 5 includes a stamping actuator 501 and a stamping head 502. The stamping actuator 501 is mounted on the stamping frame 503. The stamping head 502 is connected to the output end of the stamping actuator 501. The stamping head 502 can rise and fall under the action of the stamping actuator 501. During the descent, the stamping head 502 contacts the top surface of the lower outer jacket 903 and applies a downward force to the top surface of the lower outer jacket 903. Since the upper outer jacket 902 and the lower outer jacket 903 are connected only by a few fracturing ribs 9031, these fracturing ribs 9031 will break when subjected to sufficient axial force, thereby separating the lower outer jacket 903 from the upper outer jacket 902. The stamping actuator 501 can be a cylinder, hydraulic cylinder, electric cylinder, or other components capable of providing linear driving force. It is easy to understand that the stamping head 502 should be cylindrical in shape, and its inner diameter and inner hole length should be able to avoid the portion of the bottle cap 9 above the top surface of the lower outer jacket 903.

[0031] refer to Figure 11 The cap-squeezing device 6 includes a clamping mechanism 61 and a cap-screwing mechanism 62. The clamping mechanism 61 can move closer to the cap 9 and radially clamp and squeeze the upper outer sleeve 902. That is, the clamping mechanism 61 applies radial pressure to the outer wall of the upper outer sleeve 902 from the side of the cap 9, causing the upper outer sleeve 902 to undergo a slight radial deformation under pressure, thereby transmitting the force to the gap between the outer cap 901 and the upper outer sleeve 902, causing the electroplated layer (or coating) adhesive layer at that location to break under stress. The cap-screwing mechanism 62 can press the cap 9 tightly and drive it to rotate, so that after the upper outer sleeve 902 has been clamped once, the cap 9 can be rotated to a target angle before the next clamping.

[0032] It is worth noting that by setting several cap-pinching devices 6 and rotating the cap 9 by a certain angle through the cap-screwing mechanism 62 before each pinch, each pinch is applied to different positions around the upper outer cover 902, thereby subjecting the adhesive layer between the outer cover 901 and the upper outer cover 902 to tensile, compressive, or shear stress in multiple different directions, ensuring that the adhesive layer is completely broken along the entire circumference and avoiding local failure to break.

[0033] refer to Figure 2 and Figure 3 In this embodiment, there are four pinching devices 6, arranged sequentially and at intervals along the circumference of the indexing worktable 1. After each pinching device 6 completes one pinching operation, the capping mechanism 62 of the next pinching device 6 rotates the cap 9 by 90 degrees (or, after pinching, the capping mechanism 62 of the same pinching device 6 can rotate the cap 9 by 90 degrees), so that the next pinching position is offset by 90 degrees from the previous pinching position, thereby achieving sequential squeezing in four orthogonal directions. Those skilled in the art should understand that in other embodiments, the number of pinching devices 6 is not limited to four, but can also be two, three, five or more. Correspondingly, the target angle for each rotation is 360 degrees divided by the number of pinching devices 6. For example, with three devices, each rotation is 120 degrees, and with six devices, each rotation is 60 degrees, as long as the pinching positions are evenly distributed along the circumference of the upper outer sleeve 902. In addition, in other embodiments, the rotation angles between the pinching devices 6 can of course be unevenly distributed.

[0034] refer to Figure 12 In this embodiment, the clamping mechanism 61 has the following specific structure: it includes a clamping drive component 611, a clamping translation component 612, and a pair of clamping claws 613. The pair of clamping claws 613 are arranged opposite to each other, forming a clamping space between them to accommodate the upper outer sleeve 902. It is easy to understand that the clamping claws 613 have an overall arc-shaped structure, which facilitates adaptation to the outer wall shape of the upper outer sleeve 902. In practical applications, an elastic pad layer (not shown in the figure, such as a silicone pad, polyurethane pad, or rubber pad) can also be provided on the inner sidewall of the clamping claws 613 to provide cushioning and protection during compression.

[0035] In this embodiment, the pinching drive 611 is preferably a finger cylinder. A pair of pinching claws 613 are connected to the two fingers of the finger cylinder in a one-to-one correspondence. When the pinching drive 611 is working, it drives the pair of pinching claws 613 to move closer or further apart. When the pair of pinching claws 613 move closer together, the inner sidewall of the pinching claws 613 contacts the outer wall of the upper outer sleeve 902 and applies radial pressure, thereby squeezing the upper outer sleeve 902. When the pair of pinching claws 613 move further apart, the squeezing of the upper outer sleeve 902 is released. In practical applications, the pinching mechanism 61 of each pinching device 6 can pinch multiple times. In other embodiments, the pinching drive 611 can of course be a double-headed cylinder, an electric gripper, or other actuators that can realize the synchronous opening and closing of the two claws.

[0036] The clamping translation component 612 drives the clamping claw 613 to move closer to or further away from the support fixture 2. When not performing a clamping operation, the clamping claw 613 retracts to a position away from the support fixture 2 to avoid interference with the rotation of the indexing table 1. When a clamping operation is required, the clamping translation component 612 drives the clamping claw 613 to move closer to the support fixture 2, aligning the clamping claw 613 with the radial pressing position of the upper outer sleeve 902. In this embodiment, the clamping translation component 612 is preferably a cylinder, with its piston rod connected to the clamping drive component 611, and its cylinder body fixedly mounted on the clamping frame 614. In other embodiments, the clamping translation component 612 can also be an electric cylinder or a linear drive element such as a linear module.

[0037] refer to Figure 13 and Figure 14 In this embodiment, the capping mechanism 62 has the following specific structure: it includes a capping head 621, a capping drive component 622, and a capping lifting component. The capping lifting component drives the capping head 621 to move up and down, causing the capping head 621 to press downwards against the top surface of the bottle cap 9 or move upwards away from the bottle cap 9. The capping drive component 622 drives the capping head 621 to rotate around its own axis. When the capping head 621 presses against the top surface of the bottle cap 9, a frictional engagement is formed between the capping head 621 and the bottle cap 9. When the capping head 621 rotates, it can drive the bottle cap 9 to rotate synchronously, thereby realizing the angle adjustment of the bottle cap 9 between pinching operations. In practical applications, an anti-slip pad (not shown in the figure) can be provided on the surface of the capping head 621 that contacts the top surface of the bottle cap 9 to ensure that the capping head 621 can reliably drive the bottle cap 9 to rotate without relative slippage. In this embodiment, the capping drive 622 is preferably a servo motor, which facilitates precise control of the rotation angle of the cap 9. The capping drive 622 is mounted on the mounting base 627, and the capping head 621 is connected to the output end of the capping drive 622. In other embodiments, the capping drive 622 may also be a rotary cylinder stepper motor or other components capable of providing rotational power.

[0038] The capping and lifting component includes a support base 623, a capping double-headed cylinder 624, a limiting screw 625, and a limiting nut 626. Those skilled in the art should understand that a double-headed cylinder refers to a cylinder whose piston rod extends from both ends of the cylinder body, enabling reciprocating motion in both directions. Two support bases 623 are arranged side-by-side along the lifting direction. The piston rod of the capping double-headed cylinder 624 is fixedly connected between the two support bases 623, allowing the cylinder body of the capping double-headed cylinder 624 to move up and down relative to the piston rod. The mounting base 627 of the capping drive component 622 is fixedly connected to the cylinder body of the capping double-headed cylinder 624. When the cylinder body of the capping double-headed cylinder 624 moves up and down, the mounting base 627, the capping drive component 622 mounted thereon, and the capping head 621 move up and down synchronously, thereby realizing the lifting action of the capping head 621.

[0039] One end of the limiting screw 625 is fixedly connected to the capping double-head cylinder 624, and the other end passes through the top of the support base 623 and extends upward. The limiting nut 626 is connected to the limiting screw 625 and is located above the support base 623. By adjusting the position of the limiting nut 626 on the limiting screw 625, the downward stroke of the cylinder body of the capping double-head cylinder 624 can be limited, thereby precisely controlling the descent height of the capping head 621. This ensures that the capping head 621 can press against the top surface of the cap 9 with appropriate pressure, ensuring reliable rotation of the cap 9 while avoiding excessive pressure that could damage the cap 9.

[0040] Example 2 This embodiment also provides an automatic cap-splitting device for spray-plated wine caps 9, which is further optimized based on Embodiment 1. Specifically, this embodiment has a top-loading cylinder (not shown in the figure) located below the indexing worktable 1 corresponding to the front unloading device 7, and the output end of the top-loading cylinder is connected to a top-loading rod. Those skilled in the art should understand that the top-loading cylinder should not rotate with the indexing worktable 1, and at the same time, the top-loading rod can pass through the inner hole of the support fixture 2 (i.e., the inner hole of the mandrel 202). The purpose of the top-loading rod is to push the upper outer sleeve 902 and its internal structure upward before the front unloading device 7 operates, so that it separates from the lower outer sleeve 903 on the support fixture 2, thus preventing the front unloading device 7 from taking the lower outer sleeve 903 away.

[0041] Example 3 This embodiment provides an automatic disassembly and pinching method for spray-plated wine caps, using the equipment provided in Embodiment 1, and includes the following steps: S1. Loading: The wine caps 9 to be disassembled are transferred to the support fixture 2 on the indexing worktable 1 by the gripping device. The gripping device performs a loading action every time the indexing worktable 1 rotates by one indexing angle, and the wine caps 9 are sequentially transported to each subsequent work station.

[0042] S2. Pre-compression: The indexing table 1 rotates, and the bottle cap 9 reaches the pre-compression device 4. The pre-compression actuator 401 of the pre-compression device 4 drives the pre-compression head 402 to descend. The pre-compression head 402 presses down against the top surface of the bottle cap 9, applying a downward force to the bottle cap 9, so that the bottle cap 9 is fully positioned on the support fixture 2, ensuring that the relative position between the bottle cap 9 and the mandrel 202 is accurate and reliable. After pre-compression is completed, the pre-compression actuator 401 drives the pre-compression head 402 to rise and reset.

[0043] S3. Stamping: The indexing table 1 rotates, and the pre-pressed bottle cap 9 reaches the stamping device 5. The stamping actuator 501 of the stamping device 5 drives the stamping head 502 to descend. The stamping head 502 contacts the top surface of the lower outer sleeve 903 and applies a downward force to the top surface of the lower outer sleeve 903, causing the fracture rib 9031 between the lower outer sleeve 903 and the upper outer sleeve 902 to break, separating the lower outer sleeve 903 and the upper outer sleeve 902. After stamping is completed, the stamping actuator 501 drives the stamping head 502 to rise and reset.

[0044] S4. Capping: The indexing table 1 rotates, and the stamped cap 9 reaches the capping device 6. At the first capping device 6, the clamping translation component 612 drives the clamping claws 613 to translate closer to the support fixture 2, so that a pair of clamping claws 613 are located on both radial sides of the upper outer sleeve 902. The clamping drive component 611 drives the pair of clamping claws 613 to move closer to each other, and the inner sidewall of the clamping claws 613 contacts the outer wall of the upper outer sleeve 902 and applies radial pressure, thereby causing the electroplated layer (or coating) adhesive layer at the gap between the outer cap 901 and the upper outer sleeve 902 to partially break under stress. After extrusion, the clamping drive component 611 drives the pair of clamping claws 613 to move away from each other, and the clamping translation component 612 drives the clamping claws 613 to translate back to their original position.

[0045] Then, the indexing table 1 rotates, bringing the bottle cap 9 to the next pinching device 6. Before the pinching mechanism 61 performs the pinching, the capping mechanism 62 operates first. The capping lifting component drives the capping head 621 to descend, pressing against the top surface of the bottle cap 9. The capping drive component 622 drives the capping head 621 to rotate at a target angle (90 degrees in this embodiment). The capping head 621 drives the bottle cap 9 to rotate synchronously, causing the circumferential orientation of the upper outer sleeve 902 to rotate 90 degrees relative to the previous pinching position. Then, the capping lifting component drives the capping head 621 to rise and reset. Next, the pinching mechanism 61 pinches and squeezes the upper outer sleeve 902 in the same manner as described above, applying radial pressure to the upper outer sleeve 902 at a position offset by 90 degrees from the previous pinching position, causing the adhesive layer to break further at another location. Those skilled in the art should understand that when the cap is screwed on, the gripper 613 is in a released state, that is, the gripper 613 will not contact the upper outer cover 902; in addition, when the gripper 613 pinches and squeezes the upper outer cover 902, the capping head 621 can press against the cap 9.

[0046] Following this pattern, the cap 9 passes through the remaining cap-squeezing devices 6 in sequence. Each cap-squeezing station performs the action in the order of "rotating the cap 9 first and then squeezing the cap" until all cap-squeezing devices 6 have completed the squeezing of the upper outer cover 902. This causes the electroplated layer (or coating) adhesive layer at the gap between the outer cap 901 and the upper outer cover 902 to completely break along the entire circumference.

[0047] S5. First feeding: The indexing table 1 rotates, and the wine cap 9, after being pinched open, reaches the front feeding device 7. The front feeding device 7 removes the disassembled upper outer jacket 902 and its internal structure from the support fixture 2 and transfers them to the target position, completing the first feeding.

[0048] S6. Second loading. The indexing table 1 rotates, and the remaining lower outer sleeve 903 reaches the rear loading device 8. The rear loading device 8 removes the lower outer sleeve 903 from the support fixture 2 and transfers it to the target position, completing the second loading.

[0049] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An automatic cap-removing and pinching device for spray-plated wine caps, characterized in that, It includes an indexing worktable and a feeding device, a stamping device, several cap-squeezing devices, a front unloading device and a rear unloading device arranged sequentially along its circumference; The indexing worktable is provided with multiple support fixtures along its circumference for carrying wine caps, and the feeding device is used to transfer the wine caps onto the support fixtures. The stamping device includes a stamping actuator and a stamping head. The stamping actuator is used to drive the stamping head to rise and fall, so as to apply a force to the top surface of the lower outer jacket and separate it from the upper outer jacket. The capping device includes a pinching mechanism and a capping mechanism. The pinching mechanism can move horizontally closer to the cap and squeeze the upper outer sleeve radially. The capping mechanism can press the cap and drive it to rotate so that after the upper outer sleeve has been pinched once, the cap can be rotated to the target angle before the next pinch is performed. The front unloading device is used to transfer the disassembled upper jacket and its internal structure to the target position, and the rear unloading device is used to transfer the disassembled lower jacket to the target position.

2. The automatic cap-removing and pinching device for spray-plated wine caps according to claim 1, characterized in that, The clamping mechanism includes a clamping drive, a clamping translation component, and a pair of clamping claws. The clamping drive is used to drive the pair of clamping claws to move closer or further away from each other to squeeze the upper jacket. The clamping translation component is used to drive the clamping claws to move closer or further away from the supporting fixture.

3. The automatic cap-removing and pinching device for spray-plated wine caps according to claim 1, characterized in that, The capping mechanism includes a capping head, a capping drive component, and a capping lifting component. The capping lifting component is used to drive the capping head to move up and down to press against or move away from the cap. The capping drive component is used to drive the capping head to rotate, thereby causing the cap to rotate.

4. The automatic cap-disassembling and pinching device for spray-plated wine caps according to claim 3, characterized in that, The capping and lifting component includes a support base, a capping double-headed cylinder, a limiting screw, and a limiting nut. Two support bases are arranged side by side along the lifting direction. The piston rod of the capping double-headed cylinder is fixedly connected between the two support bases. The capping drive component is mounted on a mounting base, and the mounting base is fixedly connected to the cylinder body of the capping double-headed cylinder. One end of the limiting screw is fixedly connected to the capping double-headed cylinder, and the other end passes through the top of the support base. The limiting nut is connected to the limiting screw and is located above the support base.

5. The automatic cap-disassembling and pinching device for spray-plated wine caps according to claim 1, characterized in that, The supporting fixture includes a fixture support and a mandrel. The fixture support is fixedly connected to the indexing worktable, and the mandrel is connected to the fixture support. The mandrel has a clearance section and a positioning section with progressively increasing diameters from top to bottom. The top of the clearance section has a positioning hole that can mate with the outer wall of the inner plug. The upper outer sleeve and its internal structure are supported by the top surface of the clearance section or the bottom of the positioning hole. The outer diameter of the positioning section can mate with the inner wall of the lower outer sleeve. The lower end of the positioning section has a supporting step to support the lower outer sleeve after it is separated from the upper outer sleeve.

6. The automatic cap-disassembly and pinching device for spray-plated wine caps according to claim 5, characterized in that, The tooling support includes a tooling base and a support sleeve. The tooling base is fixedly connected to the indexing worktable, and the support sleeve is threaded to the tooling base. The mandrel is inserted inside the support sleeve, and the mandrel is connected to the support sleeve through a bearing.

7. The automatic cap-disassembling and pinching device for spray-plated wine caps according to claim 1, characterized in that, The loading device and the unloading device have the same structure, both including a suction cup, a first material transfer lifting drive and a first material transfer translation drive. The first material transfer lifting drive is used to drive the suction cup to lift, and the first material transfer translation drive is used to drive the suction cup to translate.

8. The automatic cap-removing and pinching device for spray-plated wine caps according to claim 1, characterized in that, The rear unloading device includes a second material transfer lifting drive, a second material transfer translation drive, a clamping drive, and a pair of material picking claws. The clamping drive is used to drive the pair of material picking claws to move closer or further apart to clamp the lower outer sleeve. The second material transfer lifting drive is used to drive the clamping drive to lift and lower, and the second material transfer translation drive is used to drive the clamping drive to translate.

9. The automatic cap-disassembling and pinching device for spray-plated wine caps according to claim 1, characterized in that, A pre-pressing device is provided before the stamping device. The pre-pressing device includes a pre-pressing actuator and a pre-pressing head. The pre-pressing actuator is used to drive the pre-pressing head to rise and fall, so as to apply force to the top surface of the bottle cap, so as to accurately position the bottle cap placed on the support fixture.

10. A method for automatically disassembling and pinching a spray-plated wine cap, using the equipment described in claim 9, characterized in that... The steps are as follows: S1. Loading: The loading device transfers the wine caps to be disassembled to the support fixture on the indexing worktable. The loading device loads the wine caps one time for each indexing worktable rotation, and the wine caps are transported to each workstation in sequence. S2, Pre-compression: The pre-compression device presses the cap downwards to accurately position the cap and the support fixture. S3, Stamping: The stamping device applies a downward force to the top surface of the lower outer jacket, causing the lower outer jacket to separate from the upper outer jacket; S4, Capping: The capping mechanism of the first capping device moves horizontally closer to the bottle cap and clamps and squeezes the upper outer sleeve from the radial direction. Before the capping mechanism of the next capping device squeezes the upper outer sleeve, the capping mechanism first rotates the bottle cap to the target angle until all capping devices have completed the squeezing of the upper outer sleeve. S5. First unloading: The front unloading device removes the disassembled upper jacket and its internal structure from the support fixture and transfers them to the target position; S6. Second feeding: The rear feeding device removes the lower outer jacket from the support fixture and transfers it to the target position.

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