Ultra pitch transition module
By designing an ultra-small pitch transition module, the problem of product residue caused by the transition gap in the plate chain conveyor is solved, realizing smooth transmission of the chain plate and continuous operation of the conveyor, and simplifying installation and maintenance.
Patent Information
- Application Number
- CN202210400358.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-04-16
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2042-04-16
AI Technical Summary
Existing plate chain conveyors have large transition gaps at the head and tail connections, which prevents products from being directly conveyed to the next process section. Transition plates or stainless steel plates are needed to fill the gaps, but product residue still accumulates and requires manual handling.
The ultra-small pitch transition module, including side plates, ultra-small pitch mesh chain and drive components, utilizes equilateral triangular side plates, needle roller bearings and ultra-high molecular weight polyethylene material support plates, combined with direct drive motor drive, to achieve smooth transmission of the chain plate and avoid wear and product retention.
It achieves smooth transmission of the chain plate, avoids wear and stagnation of products at transition points, simplifies installation and maintenance, and ensures continuous operation of the conveyor and product integrity.
Smart Images

Figure CN114572618B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of conveyor technology, and in particular to ultra-small pitch transition modules. Background Technology
[0002] Conveyors can be classified according to their operation mode as follows: integrated loading and unloading conveyors, belt conveyors, screw conveyors, bucket elevators, roller conveyors, plate chain conveyors, mesh belt conveyors, and chain conveyors.
[0003] Existing plate chain conveyors use chain plates or mesh chains with large transition gaps at the head and tail connections. These gaps prevent products from being directly conveyed to the next process stage, requiring transition plates or stainless steel plates to solve this problem. However, using transition plates or stainless steel plates to fill the gaps requires products to push against each other to pass through smoothly, resulting in a small amount of product always accumulating on the conveyor line and needing to be manually removed and transferred. To address this, we have proposed an ultra-small pitch transition module. Summary of the Invention
[0004] The main objective of this invention is to provide an ultra-small pitch transition module, which can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:
[0006] An ultra-small pitch transition module includes side plates, an ultra-small pitch mesh chain, and a drive assembly. Two side plates are arranged parallel to each other. The side plates have an equilateral triangular cross-section and chamfered corners. A first pad and a second pad are mounted on the inner walls of each side plate, with the second pad positioned on top of the first pad. A support plate is mounted on top of the first pad, and both sides of the support plate are respectively attached to the two second pads. An ultra-small pitch mesh chain is tumbling between the surface of the support plate and the outer walls of the second pads. A drive assembly is mounted on the side wall of one of the side plates.
[0007] Furthermore, the ultra-small pitch mesh chain is composed of multiple chain plates and needle roller bearings. Both sides and ends of the chain plates are rotatably connected to other chain plates through needle roller bearings. The chain plates at the ends of the ultra-small pitch mesh chain are equipped with cylindrical pins on the side near the side plate. The ends of the cylindrical pins extend into the interior of the second pad. When the ultra-small pitch mesh chain rotates and transports products, the ultra-small pitch mesh chain is restricted by the second pad, avoiding severe wear caused by the left and right swing of the ultra-small pitch mesh chain.
[0008] Furthermore, the drive assembly comprises a drive shaft, a sprocket, a motor mount, and a direct drive motor. The side wall of the side plate has a circular hole, and a deep groove ball bearing is installed in the circular hole. The drive shaft is rotatably connected between the inner circumferences of the deep groove ball bearing. The sprocket is sleeved on the outer circumference of the drive shaft. The outer circumference of the sprocket is connected to the chain plate through a groove drive connection. A motor mount is installed on the side wall of one of the side plates, and a direct drive motor is installed on the side wall of the motor mount. The output shaft of the direct drive motor is fixedly connected to the end of the drive shaft. The output shaft of the direct drive motor drives the drive shaft and the sprocket on the outer circumference of the drive shaft to rotate. The sprocket drives the ultra-small pitch mesh chain, which is connected by the chain plate and the needle roller bearing, to rotate between the surface of the support plate and the outer circumference of the sprocket.
[0009] Furthermore, the support plate is made of ultra-high molecular weight polyethylene (UHMWPE), which has high strength and less wear when it rubs against the ultra-small pitch mesh chain, thus minimizing the wear of the ultra-small pitch mesh chain.
[0010] Furthermore, a straight groove is constructed on each adjacent side of the second pad, and the height of the straight groove is slightly larger than the diameter of the cylindrical pin. When the ultra-small pitch mesh chain rotates between the support plate and the sprocket, the cylindrical pin at the end of the chain plate continuously enters the straight groove and moves to fit the second pad, thereby limiting the movement trajectory of the ultra-small pitch mesh chain.
[0011] Furthermore, the chain plate has a T-shaped cross-section, a thickness of 5-6mm, a pitch of 6-8mm, and a width that increases in positive multiples of 85mm or 76.2mm, conforming to standardized design and manufacturing standards. This facilitates the installation and connection of accessories later. The pin hole diameter of the chain plate near the side plate is set to 2.5-3mm. The chain plate is small in size, making it less likely for products to get stuck in the gaps between the chain plates. Therefore, there is no need for products to push each other, which would result in a small number of products being stuck on the ultra-small pitch chain.
[0012] Furthermore, a rotating shaft is installed between the side walls of the side plates, and a tensioning wheel is installed on the outer periphery of the rotating shaft. The outer periphery of the tensioning wheel fits against the inner periphery of the ultra-small pitch mesh chain. Depending on the situation, a rotating shaft and a tensioning wheel can be added between the side plates to prevent the ultra-small pitch mesh chain from becoming excessively loose in the area between the support plate and the sprocket.
[0013] Furthermore, the sidewalls of the side plates are each constructed with a rectangular array of circular mounting holes, which facilitate the installation of this ultra-small pitch transition module at the end of the conveyor line.
[0014] Compared with the prior art, the present invention has the following advantages: The present invention uses an ultra-small pitch mesh chain with a pitch of 8mm or 6mm, and uses 9.2 million ultra-high molecular weight polyethylene material processed at both ends of the chain plate and combined with self-developed micro bearings to replace conventional gears, which greatly reduces the radius of the chain plate when rotating; This device can be installed at the beginning and end of the conveyor, which is convenient to install and simple to maintain, and has its own power system, which enables it to run at the same speed as the entire conveyor, regardless of the product packaging form, and there is no need to worry about damage to the packaging, squeezing and deformation, product retention, or inconsistent speed during product transition. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of the ultra-small pitch transition module of the present invention;
[0016] Figure 2 This is a top view of the ultra-small pitch transition module of the present invention;
[0017] Figure 3 This is a side view of the ultra-small pitch transition module of the present invention;
[0018] Figure 4 This is a cross-sectional view of the ultra-small pitch mesh chain of the ultra-small pitch transition module of the present invention;
[0019] Figure 5 This is a rear view of the ultra-small pitch transition module of the present invention.
[0020] In the diagram: 1. Side plate; 2. First pad; 3. Second pad; 4. Drive shaft; 5. Sprocket; 6. Motor base; 7. Cylindrical pin; 8. Chain plate; 9. Direct drive motor; 10. Deep groove ball bearing; 11. Needle roller bearing; 12. Rotating shaft; 13. Tensioner wheel; 14. Support plate. Detailed Implementation
[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.
[0022] like Figure 1-5As shown, the ultra-small pitch transition module includes a side plate 1, an ultra-small pitch mesh chain, and a drive assembly. The side plate 1 consists of two pieces, made of stainless steel plate after cutting and polishing. The two side plates 1 are arranged parallel to each other. The cross-sectional structure of the side plate 1 is an equilateral triangle, and the corners of the side plate 1 are chamfered. The inner walls of each side plate 1 are equipped with a first pad 2 and a second pad 3, with the second pad 3 located on top of the first pad 2. A support plate 14 is installed on the top of the first pad 2. The two sides of the support plate 14 are respectively attached to the two second pads 3. The ultra-small pitch mesh chain is tumbling between the surface of the support plate 14 and the outer wall of the second pad 3. The first pad 2, the second pad 3, and the two side plates 1 can restrict the movement trajectory of the ultra-small pitch mesh chain from both sides, preventing the ultra-small pitch mesh chain from swinging left and right during operation, thereby reducing the wear of the ultra-small pitch mesh chain. The drive assembly is installed on the side wall of one of the side plates 1.
[0023] The ultra-small pitch mesh chain consists of multiple chain plates 8 and needle roller bearings 11. Both sides and ends of the chain plates 8 are rotatably connected to other chain plates 8 through the needle roller bearings 11. Adjacent chain plates 8 can rotate relative to each other to adapt to changes at the turning points of the ultra-small pitch mesh chain. The chain plates 8 at the ends of the ultra-small pitch mesh chain are equipped with cylindrical pins 7 on the side near the side plate 1. The ends of the cylindrical pins 7 extend into the interior of the second pad plate 3. When the ultra-small pitch mesh chain moves on the top of the support plate 14, the cylindrical pins 7 can pass through the interior of the second pad plate 3 in sequence. When the ultra-small pitch mesh chain rotates and transports products, the ultra-small pitch mesh chain is restricted by the second pad plate 3 to avoid severe wear caused by the left and right swing of the ultra-small pitch mesh chain.
[0024] The drive assembly comprises a drive shaft 4, a sprocket 5, a motor mount 6, and a direct drive motor 9. The direct drive motor 9 can be replaced with an electric roller as the power drive. The side wall of the side plate 1 has a circular hole, and a deep groove ball bearing 10 is installed in the circular hole. The drive shaft 4 is rotatably connected between the inner circumferences of the deep groove ball bearing 10 and the outer circumference of the drive shaft 4. The sprocket 5 is sleeved on the outer circumference of the drive shaft 4 and is connected to the chain plate 8 by a groove transmission. The motor mount 6 is installed on the side wall of one of the side plates 1, and the direct drive motor 9 is installed on the side wall of the motor mount 6. The output shaft of the direct drive motor 9 is fixedly connected to the end of the drive shaft 4. The output shaft of the direct drive motor 9 drives the drive shaft 4 and the sprocket 5 on the outer circumference of the drive shaft 4 to rotate. The sprocket 5 drives the ultra-small pitch mesh chain, which is connected by the chain plate 8 and the needle roller bearing 11, to rotate between the surface of the support plate 14 and the outer circumference of the sprocket 5.
[0025] The support plate 14 is made of ultra-high molecular weight polyethylene (UHMWPE), which has high strength and less wear when it rubs against the ultra-small pitch mesh chain, thus minimizing the wear of the ultra-small pitch mesh chain.
[0026] In this case, a straight groove is constructed on each adjacent side of the second pad 3, and the height of the straight groove is slightly larger than the diameter of the cylindrical pin 7. When the ultra-small pitch mesh chain rotates between the support plate 14 and the sprocket 5, the cylindrical pin 7 at the end of the chain plate 8 continuously enters the straight groove and moves to fit the second pad 3, thereby limiting the movement trajectory of the ultra-small pitch mesh chain.
[0027] The chain plate 8 has a T-shaped cross-section, a thickness of 5-6mm, a pitch of 6-8mm, and a width that increases in positive multiples of 85mm or 76.2mm, conforming to standardized design and manufacturing standards. This facilitates the installation and connection of accessories later. The pin hole diameter of the chain plate 8 near the side plate 1 is set to 2.5-3mm. The chain plate 8 is relatively small, making it less likely for products to get stuck in the gaps between the chain plates. Therefore, there is no need for products to push each other, avoiding a small number of products from getting stuck on the ultra-small pitch chain during transport.
[0028] A rotating shaft 12 is installed between the side walls of the side plate 1, and a tensioning wheel 13 is installed on the outer periphery of the rotating shaft 12. The outer periphery of the tensioning wheel 13 is in contact with the inner periphery of the ultra-small pitch mesh chain. Depending on the situation, a rotating shaft 12 and a tensioning wheel 13 can be added between the side plates 1 to prevent the ultra-small pitch mesh chain from becoming too loose in the part between the support plate 14 and the sprocket 5.
[0029] The sidewalls of the side plate 1 are each constructed with a rectangular array of circular mounting holes, which facilitate the installation of the ultra-small pitch transition module at the end of the conveyor line.
[0030] It should be noted that this invention is an ultra-small pitch transition module. The side plate 1 is installed at the end of the conveyor line using bolts or screws. The output shaft of the direct drive motor 9 drives the drive shaft 4 and the sprocket 5 on the outer periphery of the drive shaft 4 to rotate directly. The sprocket 5 drives the chain plate 8 to move to one side. The relative angle of the adjacent chain plates 8 changes under the action of the needle roller bearing 11 to adapt to the surface change of the ultra-small pitch mesh chain. At the same time, the cylindrical pin 7 passes through the straight groove on the inner side wall of the second pad 3 to limit the movement trajectory of the ultra-small pitch mesh chain and avoid the ultra-small pitch mesh chain from swinging left and right and causing severe wear.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.
Claims
1. An ultra-small pitch transition module, comprising a side plate (1), characterized in that, It also includes an ultra-small pitch mesh chain and a drive assembly. The side plate (1) is set as two pieces, and the two side plates (1) are arranged parallel to each other. The cross-sectional structure of the side plate (1) is an equilateral triangle, and the corners of the side plate (1) are chamfered. The inner walls of the side plates (1) are each equipped with a first pad (2) and a second pad (3), and the second pad (3) is set on the top of the first pad (2). The top of the first pad (2) is equipped with a support plate (14). The two sides of the support plate (14) are respectively attached to the two second pads (3). The surface of the support plate (14) and the outer wall of the second pad (3) are connected by an ultra-small pitch mesh chain. The side wall of one of the side plates (1) is equipped with a drive assembly. The ultra-small pitch mesh chain is composed of multiple chain plates (8) and needle roller bearings (11). Both sides and ends of the chain plates (8) are rotatably connected to other chain plates (8) through needle roller bearings (11). The chain plates (8) located at the end of the ultra-small pitch mesh chain are equipped with cylindrical pins (7) on the side of the side plate (1). The ends of the cylindrical pins (7) extend into the interior of the second pad (3). The drive assembly comprises a drive shaft (4), a sprocket (5), a motor mount (6), and a direct drive motor (9). The side wall of the side plate (1) has a circular hole, and a deep groove ball bearing (10) is installed in the circular hole. The inner circumference of the deep groove ball bearing (10) is rotatably connected to the drive shaft (4). The outer circumference of the drive shaft (4) is fitted with a sprocket (5). The outer circumference of the sprocket (5) is connected to the chain plate (8) by a slot transmission. A motor mount (6) is installed on the side wall of one of the side plates (1). A direct drive motor (9) is installed on the side wall of the motor mount (6). The output shaft of the direct drive motor (9) is fixedly connected to the end of the drive shaft (4).
2. The ultra-small pitch transition module according to claim 1, characterized in that: The support plate (14) is made of ultra-high molecular weight polyethylene.
3. The ultra-small pitch transition module according to claim 1, characterized in that: The second pad (3) has a groove on each side of its adjacent side, and the height of the groove is slightly greater than the diameter of the cylindrical pin (7).
4. The ultra-small pitch transition module according to claim 2, characterized in that: The cross-section of the chain plate (8) is T-shaped. The thickness of the chain plate (8) is set to 5-6mm, the pitch of the chain plate (8) is set to 6-8mm, the width of the chain plate (8) is set to increase in positive multiples of 85mm or 76.2mm, and the pin hole diameter of the chain plate (8) near the side plate (1) is set to 2.5-3mm.
5. The ultra-small pitch transition module according to claim 1, characterized in that: A rotating shaft (12) is installed between the side walls of the side plate (1), and a tensioning wheel (13) is installed on the outer periphery of the rotating shaft (12). The outer periphery of the tensioning wheel (13) is in contact with the inner periphery of the ultra-small pitch mesh chain.
6. The ultra-small pitch transition module according to claim 1, characterized in that: The sidewalls of the side plate (1) are all constructed with circular mounting holes arranged in a rectangular array.
Citation Information
Patent Citations
Multi-channel small-pitch chain plate conveyor
CN112047076A
Transition device of conveying line
CN212355585U