PU (polyurethane) foam sheet roller conveying mechanism
By designing a PU foam roller conveyor mechanism, using rollers and transmission mechanisms made of polytetrafluoroethylene (PTFE), the problem of adhesive residue on belt conveyors was solved, enabling easy cleaning of the adhesive layer and protection of the belt.
Patent Information
- Application Number
- CN202423114153.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-17
AI Technical Summary
In existing automotive roof PU roller bonding equipment, residual glue remains on the contact surface between the belt conveyor and the foam, making the glue layer difficult to clean and easily damaging the belt.
The PU foam roller conveying mechanism includes a frame, a fixed roller mechanism, and a movable roller mechanism. The rollers are made of polytetrafluoroethylene (PTFE) material and are driven to rotate by a worm gear reducer and a sprocket transmission mechanism, which reduces the contact area with the foam and uses a low-adhesion material to easily peel off the adhesive layer.
It effectively reduces glue residue, simplifies the cleaning process, avoids belt damage, and improves production efficiency and safety.
Smart Images

Figure CN223480357U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of conveying equipment technology, and in particular to a PU foam roller conveying mechanism. Background Technology
[0002] The car headliner is one of the important decorative components inside the car. Using polyurethane (PU) material, headliners with different textures and colors can be made, enhancing the visual effect and texture of the car interior.
[0003] Conventional automotive headliner PU roller coating equipment uses a belt conveyor to transport bubbles with glue rolled on both sides. However, glue residue remains on the contact surface between the conveyor belt and the bubbles. Over time, the glue solidifies, causing subsequent bubbles to stick to the belt. When workers remove the bubbles, they tear them apart. During the production process, glue residue continues to accumulate, forming a thick glue layer that is difficult to clean and can easily scratch the belt during cleaning. Utility Model Content
[0004] The purpose of this invention is to provide a PU foam roller conveying mechanism to solve the problems in the prior art.
[0005] To achieve the above objectives, this utility model provides a PU foam roller conveying mechanism, which includes a frame, a fixed roller mechanism, and a movable roller mechanism. C-shaped steel is provided on both sides of the upper part of the frame, and the fixed roller mechanism is installed between the two C-shaped steel. The movable roller mechanism is provided at the front end of the upper part of the frame.
[0006] The fixed roller mechanism includes 18 rows of first steel pipes and a first worm gear reducer. The 18 rows of first steel pipes are evenly arranged between the two C-shaped steel sections. Each row of first steel pipes has 8 first rollers spaced apart. The first worm gear reducer is also installed on one side of the frame. The first worm gear reducer drives the 18 rows of first steel pipes to rotate via a first sprocket transmission mechanism. The movable roller mechanism includes two aluminum profiles, four rows of second steel pipes, a third steel pipe, and a second worm gear reducer. The two aluminum profiles are installed on both sides of the two ends of the frame. Four rows of second steel pipes are arranged between the front ends of the two aluminum profiles, and the third steel pipe is arranged between the ends of the two aluminum profiles. Each row of second steel pipes has 15 second rollers, and the third steel pipe has 8 third rollers evenly arranged. A second worm gear reducer is installed on the side of one of the aluminum profiles. The second worm gear reducer drives the four rows of second steel pipes and the third steel pipe to rotate via a second sprocket transmission mechanism. Each first roller, each second roller, and each third roller is made of polytetrafluoroethylene (PTFE).
[0007] The frame is equipped with push cylinders on both sides of the bottom of the top of the frame. Each aluminum profile is rotatably connected to the corresponding C-shaped steel, and the output end of each push cylinder is connected to the bottom of the corresponding aluminum profile.
[0008] Each of the first steel pipes has a first bearing seat on both sides, and the first bearing seat is installed on the side of the C-shaped steel.
[0009] Each of the second steel pipes and the third steel pipes is provided with a second bearing seat on both sides, and the second bearing seat is installed on the side of the aluminum profile.
[0010] The first sprocket transmission mechanism consists of multiple inner sprockets, each outer sprocket, multiple first chains, and multiple second chains. Each first steel pipe has an inner sprocket and an outer sprocket arranged sequentially at one end near the first worm gear reducer. A first chain is arranged between two adjacent inner sprockets, and a second chain is arranged between two adjacent outer sprockets. The first chain and the second chain are arranged alternately.
[0011] This utility model discloses a PU foam roller conveying mechanism, comprising a frame, a fixed roller mechanism, and a movable roller mechanism. Activating the first worm gear reducer drives 18 rows of first steel pipes to rotate between two C-shaped steel sections via the first sprocket transmission mechanism. Activating the second worm gear reducer drives four rows of second steel pipes and third steel pipes to rotate between two aluminum profiles via the second sprocket transmission mechanism. The arrangement of multiple first, second, and third rollers completes the conveying of PU foam. Compared to belt conveying, this reduces the contact area with the PU foam. Furthermore, since the first, second, and third rollers are all made of polytetrafluoroethylene (PTFE), their adhesion to adhesives is very weak; therefore, once an adhesive layer forms on the rollers, it can be easily peeled off manually. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a top view of the PU foam roller conveying mechanism provided by this utility model.
[0014] Figure 2 This utility model provides Figure 1 A magnified view of the local structure at point A.
[0015] Figure 3 This is a side view of the PU foam roller conveying mechanism provided by this utility model.
[0016] 101-Frame, 102-C-shaped steel, 103-First steel pipe, 104-First worm gear reducer, 105-First roller, 106-Aluminum profile, 107-Second steel pipe, 108-Third steel pipe, 109-Second worm gear reducer, 110-Second roller, 111-Third roller, 112-Second sprocket transmission mechanism, 113-Push cylinder, 114-First bearing housing, 115-Second bearing housing, 116-Inner sprocket, 117-Outer sprocket, 118-First chain, 119-Second chain. Detailed Implementation
[0017] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0018] Please see Figures 1 to 3 This utility model provides a PU foam roller conveying mechanism, which includes a frame 101, a fixed roller mechanism and a movable roller mechanism. C-shaped steel 102 is provided on both sides of the upper part of the frame 101, and the fixed roller mechanism is installed between the two C-shaped steel 102. The movable roller mechanism is provided at the front end of the upper part of the frame 101.
[0019] The fixed roller mechanism includes 18 rows of first steel pipes 103 and a first worm gear reducer 104. The 18 rows of first steel pipes 103 are evenly arranged between the two C-shaped steel sections 102. Each row of first steel pipes 103 has 8 first rollers 105 spaced apart. The first worm gear reducer 104 is also installed on one side of the frame 101. The first worm gear reducer 104 drives the 18 rows of first steel pipes 103 to rotate via a first sprocket transmission mechanism. The movable roller mechanism includes two aluminum profiles 106, four rows of second steel pipes 107, a third steel pipe 108, and a second worm gear reducer 109. The two aluminum profiles 106 are installed on both sides of both ends of the frame 101. Four rows of second steel pipes 107 are arranged between the front ends of the aluminum profile 106, and a third steel pipe 108 is arranged between the ends of two aluminum profiles 106. Each row of second steel pipes 107 is provided with 15 second rollers 110, and each third steel pipe 108 is provided with 8 third rollers 111. A second worm gear reducer 109 is provided on the side of one of the aluminum profiles 106. The second worm gear reducer 109 drives the four rows of second steel pipes 107 and the third steel pipes 108 to rotate through a second sprocket transmission mechanism 112. Each first roller 105, each second roller 110 and each third roller 111 is made of polytetrafluoroethylene.
[0020] In this embodiment, the first turbine reducer 104 is started, driving 18 rows of the first steel pipes 103 to rotate between the two C-shaped steels 102 via the first sprocket transmission mechanism. The second turbine reducer 109 is started, driving four rows of the second steel pipes 107 and the third steel pipes 108 to rotate between the two aluminum profiles 106 via the second sprocket transmission mechanism 112. The PU foam is conveyed by multiple first rollers 105, second rollers 110 and third rollers 111. Compared with belt conveying, the contact area with the PU foam can be reduced. At the same time, since the first rollers 105, second rollers 110 and third rollers 111 are all made of polytetrafluoroethylene, the adhesion to glue is very small. Therefore, after the glue layer is formed on the rollers, it can be gently peeled off by hand.
[0021] Furthermore, a push cylinder 113 is provided on both sides of the bottom of the top of the frame 101, each aluminum profile 106 is rotatably connected to the corresponding C-shaped steel 102, and the output end of each push cylinder 113 is connected to the bottom of the corresponding aluminum profile 106.
[0022] In this embodiment, the push cylinder 113 can drive the movable roller mechanism to rotate to a 45-degree downward angle, thus creating a passage between the roller mechanism and the glue rolling machine, making it convenient for people to walk in and perform glue cleaning operations on the glue rolling machine.
[0023] Furthermore, each of the first steel pipes 103 is provided with a first bearing seat 114 on both sides, and the first bearing seat 114 is installed on the side of the C-shaped steel 102.
[0024] In this embodiment, the arrangement of the first bearing seat 114 makes the first steel pipe 103 rotate more smoothly when it rotates between the two C-shaped steels 102.
[0025] Furthermore, each of the second steel pipe 107 and the third steel pipe 108 is provided with a second bearing seat 115 on both sides, and the second bearing seat 115 is installed on the side of the aluminum profile 106.
[0026] In this embodiment, the second bearing seat 115 makes the rotation of the second steel pipe 107 and the third steel pipe 108 smoother when they rotate between the two aluminum profiles 106.
[0027] Furthermore, the first sprocket transmission mechanism is composed of multiple inner sprockets 116, each outer sprocket 117, multiple first chains 118, and multiple second chains 119. Each of the first steel pipes 103 is provided with an inner sprocket 116 and an outer sprocket 117 in sequence at one end near the first worm gear reducer 104. A first chain 118 is provided between two adjacent inner sprockets 116, and a second chain 119 is provided between two adjacent outer sprockets 117. The first chains 118 and the second chains 119 are arranged alternately.
[0028] In this embodiment, the inner sprocket 116, the outer sprocket 117, the first chain 118 and the second chain 119 cooperate to enable the first turbine reducer 104 to drive the 18 rows of the first steel pipes 103 to rotate.
[0029] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.
Claims
1. A PU foam roller conveying mechanism, characterized in that, It includes a frame, a fixed roller mechanism, and a movable roller mechanism. C-shaped steel is provided on both sides of the upper part of the frame. The fixed roller mechanism is installed between the two C-shaped steels. The movable roller mechanism is provided at the front end of the upper part of the frame. The fixed roller mechanism includes 18 rows of first steel pipes and a first worm gear reducer. The 18 rows of first steel pipes are evenly arranged between the two C-shaped steel sections. Each row of first steel pipes has 8 first rollers spaced apart. The first worm gear reducer is also installed on one side of the frame. The first worm gear reducer drives the 18 rows of first steel pipes to rotate via a first sprocket transmission mechanism. The movable roller mechanism includes two aluminum profiles, four rows of second steel pipes, a third steel pipe, and a second worm gear reducer. The two aluminum profiles are installed on both sides of the two ends of the frame. Four rows of second steel pipes are arranged between the front ends of the two aluminum profiles, and the third steel pipe is arranged between the ends of the two aluminum profiles. Each row of second steel pipes has 15 second rollers, and the third steel pipe has 8 third rollers evenly arranged. A second worm gear reducer is installed on the side of one of the aluminum profiles. The second worm gear reducer drives the four rows of second steel pipes and the third steel pipe to rotate via a second sprocket transmission mechanism. Each first roller, each second roller, and each third roller is made of polytetrafluoroethylene (PTFE).
2. The PU foam roller conveying mechanism as described in claim 1, characterized in that, Both sides of the top and bottom of the frame are provided with push cylinders, each aluminum profile is rotatably connected to the corresponding C-shaped steel, and the output end of each push cylinder is connected to the bottom of the corresponding aluminum profile.
3. The PU foam roller conveying mechanism as described in claim 2, characterized in that, Each of the first steel pipes is provided with a first bearing seat on both sides, and the first bearing seat is installed on the side of the C-shaped steel.
4. The PU foam roller conveying mechanism as described in claim 3, characterized in that, Each of the second steel pipes and the third steel pipes is provided with a second bearing seat on both sides, and the second bearing seat is installed on the side of the aluminum profile.
5. The PU foam roller conveying mechanism as described in claim 4, characterized in that, The first sprocket transmission mechanism consists of multiple inner sprockets, each outer sprocket, multiple first chains, and multiple second chains. Each of the first steel pipes has an inner sprocket and an outer sprocket arranged sequentially at one end near the first worm gear reducer. A first chain is arranged between two adjacent inner sprockets, and a second chain is arranged between two adjacent outer sprockets. The first chains and the second chains are arranged alternately.