Static marking device for pushing pipe fittings with inserts one by one
The static marking device uses a guide limit plate and fiber optic sensor to achieve precise marking of pipe fittings, solving the problems of QR code deformation, overlap and blanking caused by dynamic marking, and improving the aesthetics of the products and the reliability of information binding.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LINHAI WEIXING NEW BUILDING MATERIALS CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-06-02
AI Technical Summary
In existing technologies, when QR codes are engraved on pipe fittings during dynamic processes, they are prone to deformation, overlap, or blank areas, affecting the product's aesthetics and the reliability of information binding.
A static marking device is used to push each pipe fitting with an insert one by one. It includes a laser engraving machine, a docking conveyor belt, a product static dwell connecting plate, and a guide and limit mechanism. The static dwell and precise marking of the pipe fitting are achieved through the guide and limit plate and fiber optic sensors.
It enables precise engraving of QR codes on pipe fittings, avoiding deformation, overlap, and blank areas, thus improving the product's aesthetics and the reliability of information binding.
Smart Images

Figure CN224309828U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PPR pipe fitting production and packaging technology, and in particular to a static marking device for sequentially pushing pipe fittings with inserts. Background Technology
[0002] In the automated packaging process for anti-counterfeiting and anti-counterfeiting of PPR pipe fittings, an anti-counterfeiting QR code needs to be engraved at a fixed position on the surface of the fitting for information binding and subsequent anti-counterfeiting verification. Currently, the anti-counterfeiting QR code is engraved while the fitting is moving on a belt conveyor. Due to fluctuations in the conveyor speed and the physical vibration of the conveyor belt itself, the QR code is deformed during dynamic marking, affecting the product's appearance. In severe cases, overlapping or blank areas may occur, seriously impacting the scanning and binding of product information and anti-counterfeiting verification. Engraving the QR code when the product is stationary avoids the impact of conveyor speed fluctuations and belt vibration, thus improving the aesthetics of the QR code and reducing overlapping and blank areas, thereby improving product quality and the reliability of subsequent information binding and anti-counterfeiting verification. Utility Model Content
[0003] To address the aforementioned issues, this utility model aims to provide a static marking device for individually pushing and marking pipe fittings with inserts, thereby resolving the problems of deformation, overlap, blank spaces, and incompleteness in the QR codes engraved on pipe fitting products.
[0004] The technical problem solved by this utility model can be achieved by the following technical solution: a static marking device for sequentially pushing inserts into pipes, comprising a laser engraving machine, a docking conveyor belt, a product acceleration conveyor belt, a product static dwell connecting plate, and a guide limiting mechanism. The outlet end of the docking conveyor belt is connected to the inlet end of the product acceleration conveyor belt. A product static dwell connecting plate is provided at the connection between the docking conveyor belt and the product acceleration conveyor belt. A laser engraving machine is provided above the product static dwell connecting plate. A guide limiting mechanism is provided at the connection between the docking conveyor belt and the product acceleration conveyor belt.
[0005] The guiding and limiting mechanism includes two symmetrically arranged guiding and limiting plates and multiple adjustable mounting brackets. The guiding and limiting plates are fixed on the adjustable mounting brackets, which are respectively installed on the sides of the docking conveyor belt and the product acceleration conveyor belt. The guiding and limiting plates are located on both sides above the product static dwell connecting plate.
[0006] The inlet end of the guide limiting plate is inclined from the outside to the inside.
[0007] The static dwell connecting plate is fixed to the docking conveyor belt by screws, and the upper surface of the static dwell connecting plate is flush with the upper surface of the conveyor belt of the docking conveyor belt and the product acceleration conveyor belt.
[0008] A fiber optic sensor transmitter is installed on one side of the product static stopping connection plate, and a fiber optic sensor receiver is installed on the other side. The installation height of the fiber optic sensor transmitter and the fiber optic sensor receiver is lower than the height of the guide limit plate.
[0009] The product acceleration belt conveyor is fixed on the counterweight support cabinet, and one end of the docking conveyor belt conveyor is fixed on the fixed bracket, while the other end is fixed to the side of the counterweight support cabinet through the support frame.
[0010] The laser engraving machine includes a laser engraving machine body and a laser engraving head. The laser engraving head is mounted on the laser engraving machine body and is located directly above the product static dwelling connecting plate. The laser engraving machine body is fixed on the laser engraving machine bracket.
[0011] Compared with the prior art, this utility model has the following advantages: It enables static marking of products one by one, preventing deformation, overlap, or blanking of QR codes on pipe fittings. The mounting bracket of the guide limit plate adopts an adjustable design, allowing adjustment of the height of the guide limit plate and the distance between the two adjustable guide limit plates, thus accommodating pipe fittings of different specifications with inserts. The guide limit plate is made of polytetrafluoroethylene (PTFE), possessing good self-lubricating properties, ensuring smooth guiding and limiting of pipe fittings with inserts. After the product static stop connection plate is installed, its upper surface remains flush with the upper surface of the conveyor belts of the docking conveyor belt and the product acceleration conveyor belt, ensuring seamless connection of the pipe fitting product transportation, improving the stability of docking transportation between the two belt conveyors. Furthermore, the product static stop connection plate, made of PTFE, has a low coefficient of friction, ensuring smooth and stable pushing of the pipe fittings. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model;
[0013] Figure 2 This is a detailed drawing of the static marking connection mechanism of the device of this utility model;
[0014] Figure 3 This is a top view of the static marking connection mechanism of the device of this utility model;
[0015] The components in the attached diagram are labeled as follows: 1 is the laser engraving machine, 2 is the docking conveyor belt, 3 is the product acceleration conveyor belt, 4 is the counterweight support cabinet, 5 is the laser engraving head, 6 is the adjustable mounting bracket, 7 is the guide limit plate, 8 is the product static dwell connection plate, 9 is the pipe fitting with inserts, 10 is the fiber optic sensor transmitter, and 11 is the fiber optic sensor receiver. Detailed Implementation
[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.
[0017] In the description of this utility model, it should be understood that the terms "one end", "the other end", "outer side", "upper", "inner side", "horizontal", "coaxial", "center", "end", "length", "outer end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0018] Combined with appendix Figures 1 to 3 As shown in the figure, this embodiment discloses a static marking device for sequentially pushing inserts into pipes, including a laser engraving machine 1, a docking conveyor belt 2, a product acceleration conveyor belt 3, a product static dwell connecting plate 8, and a guide and limiting mechanism. The outlet end of the docking conveyor belt 2 is connected to the inlet end of the product acceleration conveyor belt 3. A product static dwell connecting plate 8 is provided at the connection between the docking conveyor belt 2 and the product acceleration conveyor belt 3. The laser engraving machine 1 is provided above the product static dwell connecting plate 8. A guide and limiting mechanism is provided at the connection between the docking conveyor belt 2 and the product acceleration conveyor belt 3.
[0019] The static dwell connection plate 8 is made of polytetrafluoroethylene (PTFE). PTFE has a low coefficient of friction, ensuring smooth and stable pipe pushing. The static dwell connection plate 8 is connected and fixed to the docking conveyor belt 2 using four hexagon socket head cap screws. The upper surface of the static dwell connection plate 8 is flush with the upper surfaces of the conveyor belts of both the docking conveyor belt 2 and the product acceleration conveyor belt 3, ensuring seamless connection during the transport of the pipe fitting 9 with inserts.
[0020] The guiding and limiting mechanism includes two symmetrically arranged guiding and limiting plates 7 and multiple adjustable mounting brackets 6. The guiding and limiting plates 7 are fixed on the adjustable mounting brackets 6, which are respectively installed on the sides of the docking conveyor belt 2 and the product acceleration conveyor belt 3. The guiding and limiting plates 7 are located on both sides above the product static dwell connecting plate 8. The inlet end of the guiding and limiting mechanism is located above the docking conveyor belt 2, and the outlet end is located above the product acceleration conveyor belt 3.
[0021] The inlet end of the guide limiting plate 7 is inclined from the outside to the inside, and the inlet end formed by the two guide limiting plates 7 tapers inward, with a straight section from the inlet end to the outlet end. The guide limiting plate 7 is made of polytetrafluoroethylene, which has good self-lubricating properties and can ensure smooth guiding and limiting of the insert-equipped pipe fitting.
[0022] The adjustable mounting bracket 6 is assembled from a support, two clamps, two adjusting rods, and screws. It can adjust the height of the guide limit plate 7 and the distance between the two adjustable guide limit plates 7, thus accommodating different specifications of pipe fittings 9 with inserts. The support is fixed to the belt conveyor. One clamp is mounted on the support and connected to the vertical adjusting rod, while the other clamp is connected to both adjusting rods. The two adjusting rods are perpendicular to each other, with one end of the horizontal adjusting rod fixedly connected to the guide limit plate 7. The clamping tightness of the clamps is adjusted by screws. The adjustable mounting bracket 6 is connected and fixed to the docking conveyor belt conveyor 2 and the product acceleration belt conveyor 3 using hex socket head cap screws. The guide limit plates 7 are fixedly connected to the adjustable mounting bracket 6 using countersunk screws.
[0023] The product acceleration belt conveyor 3 is fixed on the counterweight support cabinet 4, and one end of the docking conveyor belt conveyor 2 is fixed on the fixed bracket, while the other end is fixed to the side of the counterweight support cabinet 4 through the support frame. The counterweight design can reduce the impact of ground vibration on the device.
[0024] A fiber optic sensor transmitter 10 is mounted on one side of the product static stopping connecting plate 8, and a fiber optic sensor receiver 11 is mounted on the other side. The fiber optic sensor transmitter and receiver are connected to the product static stopping connecting plate by screws. After installation, the fiber optic sensor transmitter 10 and receiver 11 face each other, and their installation height is lower than the height of the guide limiting plate 7. When a tubular product appears between them, a corresponding electrical signal change is generated, which can trigger the laser engraving machine 1 to perform an engraving action.
[0025] The laser marking machine 1 includes a laser marking machine body and a laser marking head 5. The laser marking head 5 is mounted on the laser marking machine body and is located directly above the product static holding connecting plate 8. The laser marking machine body is fixed on the laser marking machine bracket. The laser marking head 5 is used to emit a marking laser to mark anti-counterfeiting QR codes on the surface of the product.
[0026] The specific implementation process of this utility model device in the production process is as follows: Before starting the device, adjust the height and position of the adjustable mounting brackets 6 on both sides according to the specifications of the insert-equipped tubes to be produced, so that the guide limiting plates 7 on both sides just limit the upper part of the insert-equipped tube 9 and leave a certain gap to prevent jamming during conveying. Then start the device, and the docking conveyor belt 2 and the product acceleration conveyor belt 3 start to operate. The insert-equipped tube 9 is conveyed from the previous feeding device and enters the docking conveyor belt 2 from the left. The docking conveyor belt 2 picks up the insert-equipped tube 9 and conveys it to the right. After being guided by the left opening of the guide limiting plates 7 on both sides and limited by the right closing part, the insert-equipped tube 9 continues to be conveyed to the right in a fixed posture. When the insert-equipped tube 9 enters the product static stopping connecting plate 8, the product 9 is detached from the conveyor belt of the docking conveyor belt 2 on the left, and the product is in a stationary state. Simultaneously, the fiber optic sensor transmitter 10 and fiber optic sensor receiver 11 sense the arrival of the insert tube 9 and send a signal to the laser engraving machine 1. The laser engraving machine 1 triggers the engraving action, and the laser engraving head 5 emits a laser beam downwards to engrave an anti-counterfeiting QR code on the surface of the insert tube 9. At this time, the insert tube with the engraved QR code continues to stay on the static stop connecting plate 8 until the next insert tube 9 is transported by the docking conveyor belt 2. After being guided and limited by the front and rear guide limit plates 7, it continues to be transported to the right. Then, the next insert tube pushes the insert tube with the engraved QR code on the static stop connecting plate 8 to the right, and it itself stays on the static stop connecting plate 8. It is then sensed by the fiber optic sensor transmitter 10 and fiber optic sensor receiver 11, triggering the laser engraving machine 1 to engrave a new round of anti-counterfeiting QR codes. The tube 9 with the QR code engraved, pushed to the right, enters the product acceleration belt conveyor 3 and is accelerated and driven to the right for the next step of scanning, counting, packaging, and other processes. This process is repeated until the device completes its operation.
[0027] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the utility model. Any simple modifications, equivalent changes, or alterations made to the above embodiments based on the technical principles of the present utility model shall still fall within the scope of the technical solution of the present utility model.
Claims
1. A static marking device for sequentially pushing inserts into pipes, comprising a laser engraving machine (1), a docking conveyor belt (2), a product acceleration conveyor belt (3), a product static stopping connection plate (8), and a guide limiting mechanism, characterized in that: The outlet end of the docking conveyor belt (2) is connected to the inlet end of the product acceleration conveyor belt (3). A product static dwelling connecting plate (8) is provided at the connection between the docking conveyor belt (2) and the product acceleration conveyor belt (3). A laser engraving machine (1) is provided above the product static dwelling connecting plate (8). A guide limiting mechanism is provided at the connection between the docking conveyor belt (2) and the product acceleration conveyor belt (3).
2. The static marking device for sequentially pushing tubes with inserts according to claim 1, characterized in that: The guide limiting mechanism includes two guide limiting plates (7) arranged symmetrically to each other and multiple adjustable mounting brackets (6). The guide limiting plates (7) are fixed on the adjustable mounting brackets (6). The adjustable mounting brackets (6) are respectively installed on the sides of the docking conveyor belt conveyor (2) and the product acceleration conveyor belt conveyor (3). The guide limiting plates (7) are located on both sides above the product static dwell connecting plate (8).
3. The static marking device for sequentially pushing tubes with inserts according to claim 2, characterized in that: The inlet end of the guide limiting plate (7) is inclined from the outside to the inside.
4. The static marking device for sequentially pushing tubes with inserts according to claim 1, characterized in that: The product static dwell connecting plate (8) is fixed to the docking conveyor belt (2) by screws. The upper surface of the product static dwell connecting plate (8) is flush with the upper surface of the conveyor belt of the docking conveyor belt (2) and the product acceleration conveyor belt (3).
5. A static marking device for sequentially pushing tubular components with inserts according to claim 1, characterized in that: A fiber optic sensor transmitter (10) is provided on one side of the product static stop connection plate (8), and a fiber optic sensor receiver (11) is provided on the other side of the product static stop connection plate (8). The installation height of the fiber optic sensor transmitter (10) and the fiber optic sensor receiver (11) is lower than the height of the guide limit plate (7).
6. The static marking device for sequentially pushing tubular components with inserts according to claim 1, characterized in that: The product acceleration belt conveyor (3) is fixed on the counterweight support cabinet (4), and one end of the docking conveyor belt conveyor (2) is fixed on the fixed bracket, and the other end is fixed to the side of the counterweight support cabinet (4) through the support frame.
7. A static marking device for sequentially pushing tubular components with inserts according to claim 1, characterized in that: The laser engraving machine (1) includes a laser engraving machine body and a laser engraving head (5). The laser engraving head (5) is mounted on the laser engraving machine body and is located directly above the product static dwelling connecting plate (8).
8. A static marking device for sequentially pushing tubular components with inserts according to claim 7, characterized in that: The main body of the laser engraving machine is fixed on the laser engraving machine bracket.