Device for producing and sorting bottle caps
By designing a bottle cap production and sorting device, which utilizes a feeding guide rail, sorting components, and transfer components, the device automates the sorting and recycling of incorrectly oriented bottle caps, solving the problem of low efficiency in manual sorting and improving sorting efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAOXING SHANGYU RONGPING PACKAGING PROD CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-19
AI Technical Summary
In existing technologies, bottle cap orientation sorting relies on manual operation, which results in high workload, low efficiency, and a high risk of errors, leading to low sorting quality.
A bottle cap production and sorting device was designed, comprising a feeding guide rail, a sorting component, and a transfer component. The device uses a catapult cylinder to drive a sorting rod to sort bottle caps with the opening facing upwards, and uses a collection rack and transfer component to recover bottle caps with the wrong opening, thereby improving sorting efficiency and quality.
The automated bottle cap orientation sorting system improves sorting efficiency and quality while reducing the intensity and error rate of manual operations.
Smart Images

Figure CN224253567U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of bottle cap sorting technology, and more specifically, relates to a bottle cap production and sorting device. Background Technology
[0002] Plastic bottles are mainly made of materials such as polyethylene or polypropylene with the addition of various organic solvents. Bottle caps are used to seal plastic bottles during the filling process. Before entering the sealing production line, the bottle caps need to be sorted by orientation to ensure they enter the line in the same direction. Currently, manual sorting of bottle cap orientation is labor-intensive, inefficient, prone to errors, and leads to reduced sorting quality. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a bottle cap production and sorting device, which can sort bottle caps with different opening orientations, transfer bottle caps with the correct opening orientation, and recycle bottle caps with the wrong opening orientation, thereby improving sorting efficiency and quality.
[0004] This utility model discloses a bottle cap production and sorting device for sorting bottle caps with upward-facing openings and bottle caps with downward-facing openings. It includes a feeding guide rail and a sorting component. Bottle caps with different opening orientations are arranged inside the feeding guide rail, and the discharge port of the feeding guide rail faces the sorting component. The feeding guide rail transports bottle caps one by one to the plane where the sorting component is located. The sorting component includes a sorting rod that can be ejected upwards. The working stroke of the sorting rod is shorter than the internal height of the bottle cap. The sorting rod ejects bottle caps with upward-facing openings.
[0005] As a further improvement of this utility model, the sorting assembly also includes an ejector cylinder; a sorting groove is provided in the center of the ejector cylinder, and a sorting rod is nested in the sorting groove, with the lower end of the sorting rod connected to the output end of the ejector cylinder; the ejector cylinder is fixedly installed on the lower side of the discharge port of the feeding guide rail.
[0006] As a further improvement of this utility model, the sorting assembly also includes a collection rack; the collection rack is disposed on the lower side of the sorting assembly, and the inclined surface of the collection rack is inclined downward for collecting the popped-open bottle caps.
[0007] As a further improvement of this utility model, the coverage area of the inclined surface of the collection rack is at least greater than the range that the sorting rod can eject bottle caps from.
[0008] As a further improvement of this utility model, a limiting block is provided at the lower opening of the collection rack; the limiting blocks are symmetrically arranged on both sides of the opening, and the limiting blocks are triangular structures with right-angled sides fixedly connected to the collection rack, and the inclined surfaces are set facing each other. The limiting blocks on both sides cooperate to form a notch, and the size of the notch is just enough to accommodate a bottle cap to pass through; a rounded transition is provided between the limiting block and the inclined surface of the collection rack.
[0009] As a further improvement of this utility model, the sorting component also includes a collection guide rail; the collection guide rail is disposed below the opening of the collection rack, and the conveying direction of the collection guide rail is opposite to the conveying direction of the feeding guide rail; the collection guide rail is used to convey the bottle caps that are bounced off.
[0010] As a further improvement of this utility model, it also includes a transfer component; the transfer component includes a transfer seat, an air pump and an external translation motor; the transfer seat is disposed on the upper side of the sorting component, and a transfer head is disposed on the lower side of the transfer seat. The transfer head is connected to the external air pump and is used to pick up bottle caps located on the sorting component with their openings facing downwards; the transfer seat is connected to the output end of the external translation motor, and when picking up bottle caps, it drives the transfer seat to align with the bottle caps.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] By setting up a feeding guide rail and a sorting component, the feeding guide rail transports bottle caps one by one into the sorting component. The sorting rod is driven by a catapult cylinder. Since bottle caps with downward openings will not be collided with the sorting rod, while bottle caps with upward openings will abut against the cap surface of the sorting rod, it is possible to sort bottle caps with different opening orientations, transfer bottle caps with the correct opening orientation, and recycle bottle caps with the wrong opening orientation, thereby improving sorting efficiency and quality. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the operation of the bottle cap with the opening facing downwards.
[0015] Figure 3 This is a schematic diagram of the operation of the bottle cap with the opening facing upwards.
[0016] Figure 4 This is a cross-sectional view of the sorting rod of this utility model;
[0017] Figure 5 This is a schematic diagram of the operation of the transfer component of this utility model.
[0018] Explanation of the labels in the diagram:
[0019] 1. Feeding guide rail, 2. Sorting assembly, 21. Ejection cylinder, 22. Sorting rod, 23. Sorting trough, 24. Collection rack, 25. Limiting block, 26. Collection guide rail, 3. Transfer assembly, 31. Transfer seat, 32. Transfer head, 4. Bottle cap. Detailed Implementation
[0020] Specific Implementation Example 1: Please refer to... Figures 1-5A bottle cap production and sorting device is used to sort bottle caps 4 with the opening facing upwards and bottle caps 4 with the opening facing downwards. It includes a feeding guide rail 1, a sorting component 2 and a transfer component 3.
[0021] like Figure 1 As shown, bottle caps 4 with different opening orientations are arranged inside the feeding guide rail 1. The discharge port of the feeding guide rail 1 faces the sorting component 2. The feeding guide rail 1 transports the bottle caps 4 one by one to the plane where the sorting component 2 is located. It should be noted that the bottle caps 4 in the feeding guide rail 1 can be transported and fed by devices such as feeding hoppers, and the bottle caps 4 in the feeding guide rail 1 have different opening orientations.
[0022] The sorting assembly 2 includes a sorting cylinder 21 capable of upward ejection, a sorting rod 22, a collection rack 24, and a collection guide rail 26. The working stroke of the sorting rod 22 is shorter than the internal height of the bottle cap 4, and the sorting rod 22 ejects the bottle cap 4 with its opening facing upward. When the bottle cap 4 with its opening facing downward lands on the sorting cylinder 22, the sorting rod 22 ejects upward without colliding with the inside of the bottle cap 4; when the bottle cap 4 with its opening facing upward lands on the sorting cylinder 22, the sorting rod 22 ejects upward and collides with the outer side of the bottle cap 4 to eject the bottle cap 4.
[0023] A sorting groove 23 is centrally located on the ejector cylinder 21. A sorting rod 22 is nested within the sorting groove 23, with its lower end connected to the output end of the ejector cylinder 21. The ejector cylinder 21 is fixedly mounted on the lower side of the discharge port of the feeding guide rail 1. A collection rack 24 is located on the lower side of the sorting assembly 2, with its inclined surface pointing downwards to collect the ejected bottle caps 4. It should be noted that using the ejector cylinder 21 to drive the sorting rod 22 is a conventional existing technology; its specific connection relationships and working principles will not be elaborated here.
[0024] The lower opening of the collection rack 24 is provided with limiting blocks 25. The limiting blocks 25 are symmetrically arranged on both sides of the opening. Each limiting block 25 has a triangular structure, with its right-angled sides fixedly connected to the collection rack 24. The inclined surfaces face each other, and the two limiting blocks 25 fit together to form a notch, the size of which is just large enough to allow a bottle cap 4 to pass through. A rounded corner transition is provided between the limiting blocks 25 and the inclined surfaces of the collection rack 24.
[0025] The collecting guide rail 26 is located below the opening of the collecting rack 24, and the conveying direction of the collecting guide rail 26 is opposite to the conveying direction of the feeding guide rail 1. The collecting guide rail 26 is used to convey the bottle caps 4 that have been bounced off.
[0026] Preferably, the coverage area of the inclined surface of the collection rack 24 is at least greater than the range that the sorting rod 22 can eject bottle caps 4, so as to ensure that all bottle caps 4 ejected from the sorting rod 22 can fall into the collection rack 24.
[0027] The transfer assembly 3 includes a transfer seat 31, an air pump, and an external translation motor. The transfer seat 31 is positioned above the sorting assembly 2, and a transfer head 32 is located below it. The transfer head 32 is connected to the external air pump and is used to pick up bottle caps 4 with their openings facing downwards on the sorting assembly 2. The transfer seat 31 is connected to the output of the external translation motor. When picking up bottle caps 4, the transfer seat 31 is driven to align with the bottle caps 4. By using the transfer seat 31 to pick up and transfer bottle caps with the correct opening orientation, it is possible to sort bottle caps with different opening orientations, transfer bottle caps with the correct opening orientation, and recycle bottle caps with the incorrect opening orientation, thereby improving sorting efficiency and quality.
Claims
1. A bottle cap production and sorting device for sorting bottle caps (4) with the opening facing upwards and bottle caps (4) with the opening facing downwards, characterized in that: It includes a feeding guide rail (1) and a sorting component (2); bottle caps (4) with different opening orientations are arranged inside the feeding guide rail (1), and the discharge port of the feeding guide rail (1) faces the sorting component (2). The feeding guide rail (1) transports the bottle caps (4) one by one to the plane where the sorting component (2) is located; the sorting component (2) includes a sorting rod (22) that can be ejected upwards. The working stroke of the sorting rod (22) is shorter than the internal height of the bottle cap (4), and the sorting rod (22) ejects the bottle cap (4) with the opening facing upwards.
2. The bottle cap production and sorting device according to claim 1, characterized in that: The sorting assembly (2) also includes an ejector cylinder (21); the ejector cylinder (21) has a sorting groove (23) in the center, and a sorting rod (22) is nested in the sorting groove (23). The lower end of the sorting rod (22) is connected to the output end of the ejector cylinder (21); the ejector cylinder (21) is fixedly installed on the lower side of the discharge port of the feeding guide rail (1).
3. The bottle cap production and sorting device according to claim 1, characterized in that: The sorting assembly (2) also includes a collection rack (24); the collection rack (24) is located on the underside of the sorting assembly (2), and the slope of the collection rack (24) is inclined downward for collecting the popped-open bottle caps (4).
4. The bottle cap production and sorting device according to claim 3, characterized in that: The coverage area of the inclined surface of the collection rack (24) is at least greater than the range that the sorting rod (22) can eject the bottle cap (4).
5. The bottle cap production and sorting device according to claim 3, characterized in that: The lower opening of the collection rack (24) is provided with a limiting block (25); the limiting blocks (25) are symmetrically arranged on both sides of the opening. The limiting blocks (25) are triangular structures, with the right angle sides fixedly connected to the collection rack (24) respectively. The inclined surfaces are set facing each other, and the limiting blocks (25) on both sides cooperate to form a gap. The size of the gap is just enough to accommodate a bottle cap (4) to pass through; a rounded transition is provided between the limiting block (25) and the inclined surface of the collection rack (24).
6. The bottle cap production sorting device according to claim 3, characterized in that: The sorting component (2) also includes a collection guide (26); the collection guide (26) is located on the lower side of the opening of the collection rack (24), and the conveying direction of the collection guide (26) is opposite to the conveying direction of the feeding guide (1); the collection guide (26) is used to convey the bottle caps (4) that are bounced off.
7. The bottle cap production and sorting device according to claim 1, characterized in that: It also includes a transfer assembly (3); the transfer assembly (3) includes a transfer seat (31), an air pump and an external translation motor; the transfer seat (31) is located on the upper side of the sorting assembly (2), and a transfer head (32) is located on the lower side of the transfer seat (31). The transfer head (32) is connected to the external air pump and is used to pick up bottle caps (4) located on the sorting assembly (2) with their openings facing down; the transfer seat (31) is connected to the output end of the external translation motor. When picking up bottle caps (4), the transfer seat (31) is driven to align with the bottle caps (4).