Pipe stick pearl wool knurling equipment
By introducing an adjustable knurling structure and rotational symmetry design into the pearl cotton knurling equipment, the problems of poor adaptability to different product specifications and complex adjustment have been solved, achieving rapid adaptation and knurling without dead angles, thus improving the ease of operation and product quality stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUIZHOU FULIYUAN MACHINERY
- Filing Date
- 2025-08-12
- Publication Date
- 2026-07-14
AI Technical Summary
The existing EPE foam knurling equipment lacks a flexible and adjustable knurling wheel design, resulting in poor adaptability to different product specifications. Furthermore, the equipment adjustment method is complex, relying on manual experience and cumbersome steps, and no quick adaptation structure is provided.
It adopts an adjustable knurling structure, including a cylinder, lead screw, adjusting nut and knurling shaft. The sliding distance of the lead screw is controlled by rotating the adjusting nut to achieve quick adaptation. Multiple knurling shafts are distributed in a circumferential array according to the through-hole to achieve 360° full coverage processing. The rotationally symmetrical structure of the two side fixing plates eliminates the need for secondary positioning.
It enables rapid equipment adaptation and seamless knurling of multi-specification products, improves operational convenience and production adaptability, ensures product quality stability and equipment versatility, simplifies adjustment steps, and reduces reliance on manual experience.
Smart Images

Figure CN224490484U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of knurling equipment technology, and in particular to a tube-and-rod pearl cotton knurling equipment. Background Technology
[0002] EPE foam products are widely used in packaging, filling and other fields. Knurling process can improve its surface friction, aesthetics and functionality. At present, the technical level of EPE foam knurling equipment on the market varies. With the growth of demand for EPE foam products and the diversification of specifications, higher requirements are put forward for the versatility, ease of operation, rationality of mechanical structure, production adaptability and product quality stability of knurling equipment.
[0003] However, the pearl cotton knurling equipment currently on the market usually has the following problems:
[0004] 1. The knurling wheel design lacks a flexible and adjustable mechanism, resulting in poor adaptability to products of different specifications;
[0005] Second, the equipment adjustment method is complex, relies on manual experience and cumbersome steps, and does not have a quick adaptation structure. Utility Model Content
[0006] The present invention is intended to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, the present invention adopts the following technical solution: a tube-and-rod pearl cotton knurling device, comprising a frame, two fixed plates installed opposite each other at the top of the frame, and multiple knurling structures installed on one side of the fixed plates. Each knurling structure includes a displacement component, an adjustment component, and a knurling shaft. The adjustment component is installed on one side of the displacement component, and the knurling shaft is installed on the displacement component. The knurling shafts of the multiple knurling structures are corresponding in position and size.
[0008] Preferably, the displacement component includes a mounting plate, a cylinder is fixedly connected to one side of the mounting plate, the output shaft of the cylinder passes through the mounting plate, and a mounting block is fixedly connected to its end, and a connecting plate is fixedly connected to one end of the mounting block.
[0009] Preferably, the adjusting component includes a lead screw with an adjusting nut threaded onto it. The adjusting nut is located on one side of the mounting plate. One end of the lead screw is slidably inserted into the mounting plate, and a fixing nut is fixedly connected to its end. The fixing nut is located on the other side of the mounting plate, and its end is fixedly connected to one side of the connecting plate.
[0010] Preferably, the knurled shaft includes a roller, the radial direction of which is consistent with the output shaft direction of the corresponding cylinder, a ball bearing is rotatably inserted into the middle of the roller, a connecting screw is inserted through the middle of the ball bearing, and one end of the connecting screw is threaded into the side of the connecting plate.
[0011] Preferably, the ball bearing is inserted into the flat end of the connecting screw, and a limiting nut is threaded onto the connecting screw. The limiting nut is located between the ball bearing and the connecting plate, with one side of the limiting nut abutting against one side of the ball bearing. The other end of the connecting screw is threaded into a limiting stud, with the head of the limiting stud abutting against the other side of the ball bearing.
[0012] Preferably, the connecting plate is provided with a limiting plate, one side of which abuts against one side of the mounting block and corresponds to the mounting block.
[0013] Preferably, the fixing plate has an opening, and multiple knurled structures on the same fixing plate are arranged in a regular circumferential array around the opening.
[0014] Preferably, the knurled structures mounted on one of the fixed plates are rotationally symmetrical to the knurled structures mounted on the other fixed plate.
[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0016] 1. In this utility model, when the equipment is in use, the distance that the lead screw can slide can be controlled by rotating the adjusting nut, thereby controlling the distance that the cylinder can drive the connecting plate, which can control the knurling force of the knurling shaft on the tube rod pearl cotton. This equipment is simple to operate and can be quickly adapted according to the diameter of the pearl cotton product by adjusting the adjusting nut. When in use, open the cylinder, put the pearl cotton product in, close the cylinder, and the knurling can begin. This solves the problems of traditional equipment having complicated adjustment methods, relying on manual experience and cumbersome steps, and not having a quick adaptation structure.
[0017] 2. In this utility model, multiple knurling shafts on the same fixed plate are arranged in a circumferential array along the opening, allowing simultaneous knurling of different longitude positions on the tubular pearl cotton. The rotationally symmetrical structure of the two fixed plates enables 360° full-coverage processing without secondary positioning. The coordinated knurling of multiple knurling shafts allows for one-time, dead-angle-free knurling of the tubular pearl cotton without secondary processing. Furthermore, since multiple knurling shafts can knurl different longitude positions, perfectly achieving 360° full-coverage processing, the shafts have a certain degree of versatility. One set of shafts can meet the production needs of tubular pearl cotton products of different specifications within a certain range, eliminating the need for frequent replacements. This solves the problem of traditional equipment knurling wheel design lacking a flexible and adjustable mechanism, resulting in poor adaptability to different product specifications. Attached Figure Description
[0018] Figure 1 This utility model provides a perspective view of a tube-and-rod pearl cotton knurling device;
[0019] Figure 2This utility model provides a perspective view of the installation position of the knurling structure of a tube-bar pearl cotton knurling device;
[0020] Figure 3 This utility model provides a three-dimensional view of the knurling structure of a tube-and-rod pearl cotton knurling device;
[0021] Figure 4 This utility model provides a three-dimensional cross-sectional view of the knurling shaft of a tube-bar pearl cotton knurling device.
[0022] Legend: 1. Frame; 2. Fixing plate; 201. Through port; 3. Knurled structure; 4. Displacement component; 401. Mounting plate; 402. Cylinder; 403. Mounting block; 404. Connecting plate; 405. Limiting plate; 5. Adjusting component; 501. Lead screw; 502. Adjusting nut; 503. Fixing nut; 6. Knurled shaft; 601. Shaft wheel; 602. Ball bearing; 603. Connecting screw; 604. Limiting nut; 605. Limiting stud. Detailed Implementation
[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0025] Example 1: Refer to Figure 1 - Figure 4As shown: A tube-shaped pearl cotton knurling device includes a frame 1. Two fixing plates 2 are installed opposite each other at the top of the frame 1. Multiple knurling structures 3 are installed on one side of the fixing plates 2. Each knurling structure 3 includes a displacement component 4, an adjusting component 5, and a knurling shaft 6016. The adjusting component 5 is installed on one side of the displacement component 4, and the knurling shaft 6016 is installed on the displacement component 4. The knurling shafts 6016 of the multiple knurling structures 3 are corresponding in position and size. The displacement component 4 includes a mounting plate 401. A cylinder 402 is fixedly connected to one side of the mounting plate 401. The output shaft of the cylinder 402 passes through the mounting plate 401, and a mounting block 403 is fixedly connected to its end. A connecting plate 4 is fixedly connected to one end of the mounting block 403. 04; Adjusting component 5 includes a lead screw 501, on which an adjusting nut 502 is threaded. The adjusting nut 502 is located on one side of the mounting plate 401. One end of the lead screw 501 is slidably inserted into the mounting plate 401, and its end is fixedly connected to a fixing nut 503. The fixing nut 503 is located on the other side of the mounting plate 401, and its end is fixedly connected to one side of the connecting plate 404; Knurled shaft 6016 includes a shaft wheel. The radial direction of the shaft wheel is consistent with the output shaft direction of the corresponding cylinder 402. A ball bearing 602 is rotatably inserted into the middle of the shaft wheel. A connecting screw 603 is inserted through the middle of the ball bearing 602. One end of the connecting screw 603 is threaded into the side of the connecting plate 404.
[0026] In this embodiment, during use, the distance that the lead screw 501 can slide can be controlled by rotating the adjusting nut 502, thereby controlling the distance that the cylinder 402 can drive the connecting plate 404, which in turn controls the knurling force of the knurling shaft 6016 on the tube rod pearl cotton. This equipment is simple to operate and can be quickly adapted to the diameter of the pearl cotton product by adjusting the adjusting nut 502. During use, the cylinder 402 is opened, the pearl cotton product is placed in, and the cylinder 402 is closed to start knurling. This solves the problems of traditional equipment having complicated adjustment methods, relying on manual experience and cumbersome steps, and lacking a quick adaptation structure.
[0027] Example 2: According to Figure 1 - Figure 4 As shown: the ball bearing 602 is inserted into the flat end of the connecting screw 603. The connecting screw 603 is threaded with a limit nut 604. The limit nut 604 is located between the ball bearing 602 and the connecting plate 404. One side of the limit nut 604 abuts against one side of the ball bearing 602. The other end of the connecting screw 603 is threaded with a limit stud 605. The head of the limit stud 605 abuts against the other side of the ball bearing 602.
[0028] In this embodiment, the ball bearing 602 and the connecting screw 603 are connected by a flat end, making the installation of the ball bearing 602 and the connecting screw 603 more compact and less prone to misalignment and slippage. This ensures that the rollers will not be dragged during the knurling process of the pearl cotton tube, resulting in clearer patterns. The limiting nut 604 is located between the ball bearing 602 and the connecting plate 404, with one side of the limiting nut 604 abutting against one side of the ball bearing 602. The other end of the connecting screw 603 is threaded with a limiting stud 605, with the head of the limiting stud 605 abutting against the other side of the ball bearing 602. This creates a certain distance between the rollers and the connecting plate 404, allowing for fine-tuning of the roller position and better coordination among multiple rollers. At the same time, the limiting nut 604 and the limiting stud 605 also better limit the position of the ball bearing 602, ensuring a tight installation and resulting in clearer patterns.
[0029] Example 3: According to Figure 1 and Figure 3 As shown: A limiting plate 405 is provided on the connecting plate 404. One side of the limiting plate 405 abuts against one side of the mounting block 403 and corresponds to the mounting block 403.
[0030] In this embodiment, one side of the limiting plate 405 abuts against one side of the mounting block 403, and one end of the mounting block 403 is fixedly connected to the connecting plate 404. Therefore, the mounting block 403 and the connecting plate 404 limit each other in two different directions, thereby making the positions of the mounting block 403 and the connecting plate 404 more accurately combined, and ultimately ensuring that the knurled shaft 6016 is installed flush.
[0031] Example 3: According to Figure 1 - Figure 2 As shown: A through-hole 201 is provided on the fixed plate 2, and multiple knurled structures 3 on the same fixed plate 2 are arranged in a regular circumferential array around the through-hole 201; the multiple knurled structures 3 installed on one fixed plate 2 are rotationally symmetrical with the multiple knurled structures 3 installed on another fixed plate 2.
[0032] In this embodiment, multiple knurling shafts 6016 on the same fixed plate 2 are arranged in a circumferential array according to the through-hole 201, which can simultaneously knurl different longitude positions of the tubular pearl cotton. The rotationally symmetrical structure of the two fixed plates 2 achieves 360° full coverage processing without secondary positioning. The multiple knurling shafts 6016 work together to knurl the tubular pearl cotton in one go without dead angles, without secondary processing. At the same time, since multiple knurling shafts 6016 can knurl different longitude positions, they can perfectly achieve 360° full coverage processing. Therefore, the shaft wheel has a certain degree of versatility, so that one set of shaft wheel can meet the production of tubular pearl cotton products of different specifications within a certain range without frequent replacement. This solves the problem that the knurling wheel design of traditional equipment lacks a flexible and adjustable mechanism, resulting in poor adaptability to different specifications of products.
[0033] Working Principle: When using this equipment, first adjust the adjusting nuts 502 according to the specifications of the pearl cotton. Then, start the cylinder 402. The cylinder 402 drives the connecting plate 404 to move via the mounting block 403. The movement of the connecting plate 404 drives the lead screw 501 to move until it reaches the distance limited by the adjusting nut 502. Then, pearl cotton is placed in, and the existing production line provides tension, causing the knurling shaft 6016 to knurl the pearl cotton, resulting in the finished product. This knurling equipment has excellent production line compatibility and can be directly installed before the traction process of the existing pearl cotton production line without requiring extensive modifications. It is ready to use immediately upon deployment, offering high production adaptability. This knurling equipment is composed of reasonably matched parts such as the cylinder 402, knurling shaft 6016, adjusting nut 502, lead screw 501, and connecting plate 404. It adopts a two-group combination method (four in the front and four in the back), and the coordinated operation of each component ensures high stability and convenient maintenance. The stable and reasonable mechanical mechanism and convenient and precise adjustment method ensure the consistency of the knurling process across different products, improving product quality stability.
[0034] By following the instructions above, you can complete the use of a tube-and-rod pearl cotton knurling device.
[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A tube-and-rod pearl cotton knurling device, characterized in that: The machine includes a frame (1), on which two fixing plates (2) are mounted opposite each other. Multiple knurled structures (3) are mounted on one side of the fixing plates (2). Each knurled structure (3) includes a displacement component (4), an adjustment component (5), and a knurled shaft (6). The adjustment component (5) is mounted on one side of the displacement component (4), and the knurled shaft (6) is mounted on the displacement component (4). The knurled shafts (6) of the multiple knurled structures (3) are in corresponding positions and sizes.
2. The tube-and-rod pearl cotton knurling equipment according to claim 1, characterized in that: The displacement component (4) includes a mounting plate (401), a cylinder (402) is fixedly connected to one side of the mounting plate (401), the output shaft of the cylinder (402) passes through the mounting plate (401), and a mounting block (403) is fixedly connected to its end. A connecting plate (404) is fixedly connected to one end of the mounting block (403).
3. The tube-and-rod pearl cotton knurling equipment according to claim 2, characterized in that: The adjusting component (5) includes a lead screw (501), on which an adjusting nut (502) is threaded. The adjusting nut (502) is located on one side of the mounting plate (401). One end of the lead screw (501) is slidably inserted into the mounting plate (401), and its end is fixedly connected to a fixing nut (503). The fixing nut (503) is located on the other side of the mounting plate (401), and its end is fixedly connected to one side of the connecting plate (404).
4. The tube-and-rod pearl cotton knurling equipment according to claim 2, characterized in that: The knurled shaft (6) includes a shaft wheel (601), the radial direction of which is consistent with the output shaft direction of the corresponding cylinder (402). A ball bearing (602) is rotatably inserted into the middle of the shaft wheel (601), and a connecting screw (603) is inserted through the middle of the ball bearing (602). One end of the connecting screw (603) is threaded into the side of the connecting plate (404).
5. The tube-and-rod pearl cotton knurling equipment according to claim 4, characterized in that: The ball bearing (602) is inserted into the flat end of the connecting screw (603). A limiting nut (604) is threaded onto the connecting screw (603). The limiting nut (604) is located between the ball bearing (602) and the connecting plate (404). One side of the limiting nut (604) abuts against one side of the ball bearing (602). The other end of the connecting screw (603) is threaded into a limiting stud (605). The head of the limiting stud (605) abuts against the other side of the ball bearing (602).
6. The tube-and-rod pearl cotton knurling equipment according to claim 2, characterized in that: The connecting plate (404) is provided with a limiting plate (405), one side of the limiting plate (405) abuts against one side of the mounting block (403) and corresponds to the mounting block (403).
7. The tube-and-rod pearl cotton knurling equipment according to claim 1, characterized in that: The fixing plate (2) has an opening (201), and multiple knurled structures (3) on the same fixing plate (2) are arranged in a regular circumferential array around the opening (201).
8. The tube-and-rod pearl cotton knurling equipment according to claim 1, characterized in that: The knurled structures (3) mounted on one of the fixed plates (2) are rotationally symmetrical with the knurled structures (3) mounted on the other fixed plate (2).