A bottle cap screwing device for sports water bottle production
By using a sloping feed chute and a horizontally placed kettle body design, combined with a propulsion cylinder, servo motor, and screwing sleeve, and utilizing rubber protrusions to provide friction, the efficient and automated screwing of the bottle cap in kettle production is achieved. This solves the problems of low efficiency and complex structure in existing technologies and reduces maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUYI SENSI IND & TRADING CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-06-19
AI Technical Summary
In current kettle production, the cap screwing operation is inefficient, labor-intensive, and the clamping and fixing mechanism is complex and has high maintenance costs, which affects the screwing quality.
The design incorporates a sloping feed trough and a horizontally placed kettle body. Combined with a propulsion cylinder, servo motor, and screwing sleeve, it utilizes rubber protrusions to provide friction and integrates a pressure sensor to achieve automated screwing of the kettle lid.
It improves the twisting efficiency, reduces the requirements for feeding accuracy, simplifies the structure, reduces maintenance costs, prevents the kettle body from spinning idly, and improves production efficiency.
Smart Images
Figure CN224373339U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of water bottle manufacturing technology, and in particular to a bottle cap tightening device for sports water bottle manufacturing. Background Technology
[0002] In the industrial production of sports water bottles, the assembly of the lid and the bottle body is an essential step. In traditional production methods, tightening the lid mainly relies on manual labor or semi-automated equipment. Manual operation is inefficient and labor-intensive.
[0003] In existing screw-on devices, such as the automatic bottle cap screwing device disclosed in Chinese Patent Publication No. CN221544118U, an electric telescopic rod drives a servo motor to descend, causing a conical cap to press against the top of the bottle cap. Then, the servo motor drives the conical cap to rotate, using the friction of the inner liner to rotate the bottle cap and tighten it. This eliminates the need for clamping the top cap and reduces the number of components performing the clamping action. However, it has the following problems:
[0004] 1) It does not mention how to fix the packaging bottle. If there is no mechanism to fix the packaging bottle, it is easy for the packaging bottle to rotate synchronously when screwing, which will affect the screwing quality. According to the existing technology, vertically placed packaging bottles have a clamping and fixing mechanism. The common clamping and fixing mechanism is a two-way synchronous jaw clamp. This type of clamp has a relatively complex structure, high maintenance cost, and high clamping accuracy requirements.
[0005] 2) The bottle body and cap of the packaging bottle need to be fed separately to the base and bottle body, and the accuracy requirements for the feeding position are high. In addition, the elasticity of the inner liner provides the movement of the convex rib to generate enough friction to fix the cap, while the locking component is used to fix the inner liner, making the structure relatively complex.
[0006] The above content is only used to help understand the technical solution of this application and does not represent an admission that the above content is the closest prior art to this application. Summary of the Invention
[0007] Based on this, this application provides a bottle cap tightening device for sports water bottle production to solve one of the above-mentioned technical problems.
[0008] The technical solution adopted by this application to solve its technical problem is: a bottle cap tightening device for sports water bottle production, comprising: a bottle body and a bottle cap, and further comprising: a workbench, wherein an installation groove is provided on the workbench, and a first installation plate and a second installation plate extending vertically upward are respectively provided on both sides of the installation groove; a conveyor belt is installed in the installation groove, and a plurality of installation brackets are arrayed at equal intervals on the conveyor belt; two sets of clamping devices for fixing the bottle body are provided on the first installation plate; two material discharge grooves are provided on the top of the second installation plate, and the bottom of the material discharge grooves slopes from the end of the second installation plate towards the center; and a pushing and tightening device. There are two sets of devices, corresponding to the clamping device, set on the worktable between the two feeding troughs. Each set includes a propulsion cylinder, a servo motor, and a screwing sleeve. The propulsion cylinder is used to propel the servo motor and the screwing sleeve laterally. The screwing sleeve is fixed to the output end of the servo motor. The screwing sleeve has a feeding groove that penetrates the side wall of the screwing sleeve. Rubber protrusions are evenly distributed in a ring on the inner wall of the screwing sleeve. After the pot lid is placed into the feeding trough, it rolls down naturally and enters the screwing sleeve after passing through the feeding groove. The pot body is placed laterally on the mounting bracket. The propulsion and screwing device propels the pot lid towards the pot body to achieve screwing.
[0009] In some embodiments, the screwing sleeve includes a cylindrical feed section and a friction section with a gradually decreasing inner diameter. The friction section is funnel-shaped with a gradually decreasing inner diameter, wherein a limiting ring is formed on the inner wall of the feed section.
[0010] In some embodiments, a baffle is provided on the side of the screw sleeve near the feed trough, and a guide slope is formed on the baffle.
[0011] In some embodiments, a sliding hole is provided on the bottom wall of the screw sleeve, and a spring and a sliding rod are provided in the sliding hole. One end of the sliding rod abuts against the spring, and a pressure sensor is provided on the other end. The sliding rod is collinear with the axis of the screw sleeve.
[0012] In some embodiments, the workbench is provided with a mounting base, the mounting base has a receiving groove, the pushing and turning device is disposed in the receiving groove, and a limit groove is provided on the side wall of the receiving groove.
[0013] In some embodiments, the propulsion cylinder is fixed to the end of the receiving groove, the output end of the propulsion cylinder is fixed to the servo motor, the servo motor has lugs formed on both sides, the lugs slide in the limiting groove, and the screw sleeve on the output end of the servo motor can be disassembled and replaced.
[0014] In some embodiments, the pressing device is disposed directly above the conveyor belt and includes a vertically arranged pressing cylinder and a pressing block, the pressing block being fixed to the output end of the pressing cylinder.
[0015] The beneficial effects of this application are as follows:
[0016] 1) The lid is fed through a sloping feeding chute. The lid rolls through the feeding chute and enters the screwing sleeve through the feeding groove. The propulsion cylinder pushes the servo motor and the screwing sleeve to approach the pot body on the transmission belt for screwing. The pot body is positioned by the mounting bracket, and the lid is fed through the feeding chute. The operation is simple, the requirements for feeding accuracy are reduced, and the feeding, screwing and unloading operations can be completed efficiently, resulting in higher work efficiency.
[0017] 2) By placing the pot body horizontally and pressing it with a clamping device, the overall structure is simpler, the maintenance cost is lower, the operation is quicker, which helps to improve production efficiency and effectively prevents the pot body from spinning idly.
[0018] 3) By using rubber bumps and varying the inner diameter of the friction section, sufficient friction is provided to screw on the lid. Using rubber bumps allows for further simplification of the structure without affecting the performance, integrating the pressure sensor into the screwing sleeve, making the overall structure simpler and more compact. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a three-dimensional schematic diagram of this application.
[0021] Figure 2 This is a three-dimensional schematic diagram from another angle of this application.
[0022] Figure 3 This is a schematic diagram of the screw-on sleeve of this application.
[0023] Figure 4 This is a cross-sectional schematic diagram of the screw-on sleeve of this application.
[0024] Reference numerals: 1. Kettle body, 2. Kettle lid, 3. Workbench, 4. Mounting slot, 5. First mounting plate, 6. Second mounting plate, 7. Conveyor belt, 8. Mounting bracket, 9. Feeding chute, 10. Propulsion cylinder, 11. Servo motor, 12. Twisting sleeve, 1201. Feeding section, 1202. Friction section, 13. Rubber protrusion, 14. Limiting ring, 15. Feeding chute, 16. Baffle, 17. Sliding hole, 18. Spring, 19. Sliding rod, 20. Pressure sensor, 21. Lug, 22. Pressing cylinder, 23. Pressing block, 24. Mounting base, 25. Receiving groove, 26. Limiting groove. Detailed Implementation
[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application. In addition, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those of ordinary skill in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection of this application.
[0026] In the embodiments of this application, please refer to Figure 1-4 As shown, this bottle cap tightening device for sports water bottle production mainly includes: a bottle body 1 and a bottle cap 2; a workbench 3, on which an installation groove 4 is provided; a first installation plate 5 and a second installation plate 6 extending vertically upwards are respectively provided on both sides of the installation groove 4; a conveyor belt 7 is installed in the installation groove 4; several installation brackets 8 are arrayed at equal intervals on the conveyor belt 7; two sets of clamping devices for fixing the bottle body 1 are provided on the first installation plate 5; two material discharge grooves 9 are provided on the top of the second installation plate 6; the bottom of the material discharge grooves 9 slopes from the end of the second installation plate 6 towards the center; and two sets of pushing and tightening devices, corresponding to the clamping devices, are provided on the workbench 3 between the two material discharge grooves 9. The device includes a propulsion cylinder 10, a servo motor 11, and a screwing sleeve 12. The propulsion cylinder 10 is used to propel the servo motor 11 and the screwing sleeve 12 laterally. The screwing sleeve 12 is fixed to the output end of the servo motor 11. The screwing sleeve 12 has a feed groove 15 that passes through the side wall of the screwing sleeve 12. Rubber protrusions 13 are evenly distributed in a ring on the inner wall of the screwing sleeve 12. After the lid 2 is placed into the feeding groove 9, it rolls down naturally and enters the screwing sleeve 12 after passing through the feed groove 15. The pot body 1 is placed laterally on the mounting bracket 8. The propulsion and screwing device propels the lid 2 towards the pot body 1 to achieve screwing. The mounting bracket 8 is made of flexible rubber and has a concave arc surface at its top for placing the pot body 1.
[0027] The following will continue to describe some preferred / improved embodiments based on the above embodiments. Any one of the following embodiments can be selected, or multiple embodiments can be combined.
[0028] like Figure 3-4As shown, the screw-on sleeve 12 includes a cylindrical feed section 1201 and a friction section 1202 with a gradually decreasing inner diameter. The friction section 1202 is funnel-shaped with a gradually decreasing inner diameter. A limiting ring 14 is formed on the inner wall of the feed section 1201. The limiting ring 14 is used to limit the lid 2 after it enters the screw-on sleeve 12 through the feed groove 15, preventing the lid 2 from tilting to the opening side of the screw-on sleeve 12. Since the friction section 1202 with a gradually decreasing inner diameter is on one side of the feed groove 15, the lid 2 is not likely to tilt to that side. In addition, the end of the rubber protrusion 13 has a smooth inclined surface, which allows the lid 2 to smoothly and easily extend into the friction section 1202, thus making the rubber protrusion 13 play a better frictional role. The rubber protrusion 13 adopts a variable cross-section design, with a root width of 4mm and a gradually narrowing end to 2mm, forming a cutting edge contact surface.
[0029] Furthermore, a baffle 16 is provided on the side of the screw sleeve 12 near the feed trough 15. A guide slope is formed on the baffle 16. The baffle 16 is used to keep the lid 2 at the end of the feed trough 9 during the stroke of the screw sleeve 12 to prevent the lid 2 from falling off. When the screw sleeve 12 returns, the feed trough 9 is aligned with the feed trough 15, and the lid 2 naturally falls into the screw sleeve 12. The propulsion motor adopts a step-by-step propulsion and stops at the alignment position of the feed trough 9 and the feed trough 15. In addition, the width of the feed trough 15 is greater than the height of the lid 2, leaving redundant space so that the lid 2 can be accurately inserted into the screw sleeve 12. The guide slope can push the lid 2 back into the feed trough 9 when the end of the baffle 16 contacts the lid 2 to prevent the baffle 16 from making hard contact with the lid 2.
[0030] like Figure 4 As shown, a sliding hole 17 is provided on the bottom wall of the screw-on sleeve 12. A spring 18 and a sliding rod 19 are provided in the sliding hole 17. One end of the sliding rod 19 abuts against the spring 18, and a pressure sensor 20 is provided on the other end. The sliding rod 19 is collinear with the axis of the screw-on sleeve 12. In this application, the pressure sensor 20 is integrated on the sliding rod 19. The sliding rod 19 slides in the sliding hole 17, and the spring 18 always abuts against the sliding rod 19. Based on the stroke of the lid 2 extending into the friction section 1202, it is determined whether the lid 2 is in full contact with the friction section 1202 and generates a sufficient coefficient of friction. When the pressure reaches the threshold, the servo motor 11 is controlled to rotate, and the lid 2 is screwed onto the body of the pot. The function is integrated into the screw-on sleeve 12, making the components more compact and convenient for maintenance.
[0031] like Figure 1As shown, the workbench 3 is provided with a mounting base 24, and the mounting base 24 has a receiving groove 25. The push-twisting device is disposed in the receiving groove 25. A limiting groove 26 is provided on the side wall of the receiving groove 25. The push cylinder 10 is fixed to the end of the receiving groove 25. The output end of the push cylinder 10 is fixed to the servo motor 11. Lugs 21 are formed on both sides of the servo motor 11. The lugs 21 slide in the limiting groove 26. The twisting sleeve 12 on the output end of the servo motor 11 can be disassembled and replaced. The two are fixed by fasteners such as threads or screws.
[0032] Furthermore, the pressing device is located directly above the conveyor belt 7, including a vertically arranged pressing cylinder 22 and a pressing block 23. The pressing block 23 is fixed on the output end of the pressing cylinder 22. The pressing device has a relatively simple structure, is easy to maintain and repair daily, and has low requirements for pressing accuracy.
[0033] In another embodiment, the two sets of propulsion and twisting devices are driven by the same propulsion cylinder 10, thereby saving power and realizing multi-station, high-efficiency operation.
[0034] In use, the kettle lid 2 is first loaded manually or automatically using an industrial robotic arm. The lid is placed in the unloading trough 9 with its opening facing the conveyor belt 7. The kettle body is then placed on the mounting bracket 8 on the conveyor belt 7. The device is then activated, and the conveyor belt 7 starts moving until the kettle body is positioned under the clamping device, at which point it stops. The push cylinder 10 is then activated, propelling the servo motor 11 and the screwing sleeve 12 forward (before activation, the screwing sleeve 12 blocks the end of the unloading trough 9, and the unloading trough 9 intersects with the feeding trough 15). When the unloading trough 9 and the feeding trough 15 are nearly aligned, the kettle lid 2 rolls into the screwing sleeve 12. The push cylinder 10 continues to advance until the kettle lid 2 contacts the kettle body, pushing the lid 2 into the clamping device. Inside the rubbing section 1202, the rubber protrusion 13 fully presses against the lid 2, triggering the pressure sensor 20, which controls the servo motor 11 to start, driving the screwing sleeve 12 to rotate and begin screwing the lid 2 onto the pot body. At the same time as the pressure sensor 20 is triggered, the pot body abuts against the first mounting plate 5, the clamping device starts to clamp the pot body, and the push cylinder 10 feeds according to the pre-designed feed amount until the lid 2 is completely screwed onto the pot body. After the screwing step is completed (i.e., the push cylinder 10 completes its stroke), the servo motor 11 stops, the push cylinder 10 returns, and the clamping cylinder 22 raises the pressing block 23 again. The conveyor belt 7 restarts and repeats the above steps.
[0035] The various embodiments of this application have now been described in detail. To avoid obscuring the concept of this application, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.
[0036] Finally, it should be noted that the above description is only a preferred embodiment of this application. The foregoing embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. A bottle cap screwing device for producing a sports water bottle, comprising a bottle body and a bottle cap, characterized in that, Also includes: The workbench has an installation slot, and a first installation plate and a second installation plate extending vertically upward are respectively provided on both sides of the installation slot. A conveyor belt is installed in the installation slot, and several installation brackets are arrayed at equal intervals on the conveyor belt. The first installation plate is provided with two sets of clamping devices for fixing the pot body. The top of the second installation plate has two material discharge slots, and the bottom of the material discharge slots slopes from the end of the second installation plate towards the center. The push-and-twisting device has two sets, corresponding to the clamping device, and is set on the worktable between the two feeding troughs. It includes a push cylinder, a servo motor and a twisting sleeve. The push cylinder is used to push the servo motor and the twisting sleeve laterally. The twisting sleeve is fixed on the output end of the servo motor. The twisting sleeve has a feeding groove that passes through the side wall of the twisting sleeve. Rubber protrusions are evenly distributed in a ring on the inner wall of the twisting sleeve. After the lid is placed into the feeding trough, it rolls down naturally and enters the screwing sleeve after passing through the feeding trough. The pot body is placed horizontally on the mounting bracket, and the pushing and screwing device pushes the lid towards the pot body to achieve screwing.
2. The bottle cap screwing device for producing a sports water bottle according to claim 1, wherein The screwing sleeve includes a cylindrical feed section and a friction section with a gradually decreasing inner diameter. The friction section is funnel-shaped with a gradually decreasing inner diameter, and a limiting ring is formed on the inner wall of the feed section.
3. The bottle cap tightening device for sports water bottle production according to claim 1, characterized in that, A baffle is provided on the side of the screw sleeve near the feed trough, and a guide slope is formed on the baffle.
4. The bottle cap tightening device for sports water bottle production according to claim 1, characterized in that, A sliding hole is provided on the bottom wall of the screwing sleeve. A spring and a sliding rod are installed in the sliding hole. One end of the sliding rod abuts against the spring, and a pressure sensor is installed on the other end. The sliding rod is collinear with the axis of the screwing sleeve.
5. A bottle cap tightening device for sports water bottle production according to claim 1, characterized in that, The workbench is provided with a mounting base, the mounting base has a receiving groove, the pushing and turning device is located in the receiving groove, and a limit groove is provided on the side wall of the receiving groove.
6. A bottle cap tightening device for sports water bottle production according to claim 5, characterized in that, The propulsion cylinder is fixed to the end of the receiving groove, and the output end of the propulsion cylinder is fixed to the servo motor. Lugs are formed on both sides of the servo motor, and the lugs slide in the limiting groove. The screw sleeve on the output end of the servo motor can be disassembled and replaced.
7. A bottle cap tightening device for sports water bottle production according to claim 1, characterized in that, The pressing device is located directly above the conveyor belt and includes a vertically arranged pressing cylinder and a pressing block, with the pressing block fixed to the output end of the pressing cylinder.