An adjustable pitch chain cassette conveyor
By controlling the chain clamping box conveyor mechanism with dual servo motors and adjusting the pawl spacing, the problem of inaccurate product positioning during chain conveying is solved, achieving precise item positioning and spacing adjustment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN XINJINJIA TECH DEV CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-05-29
AI Technical Summary
In existing technologies, due to different product sizes, the spacing between chain pawls is fixed, resulting in inaccurate product positioning during transmission and making it difficult to adjust.
Two servo motors are used to control two sets of chains respectively. By adjusting the transmission speed of the chains, the distance between the claws can be changed, thus achieving precise and adjustable claw spacing.
It achieves accurate positioning during item delivery, ensures adjustable product spacing, and improves positioning precision during delivery.
Smart Images

Figure CN224298265U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of automated mechanical equipment and relates to automatic gripping mechanisms, specifically a chain clamp box conveying mechanism with adjustable spacing. Background Technology
[0002] With the continuous improvement of automated equipment performance, the production capacity of the liquor production line has been increasing, and the production line speed has been significantly improved, leading to a growing demand for automated packaging equipment. In the liquor processing industry, products are mainly transported using a combination of belt conveyor and chain conveyor. To ensure uniform spacing and accurate positioning of products during transport, multiple evenly spaced claws are installed on the chain. These claws are used to limit and push the conveyed items, thus ensuring accurate spacing. However, due to varying product sizes, the product dimensions are often smaller than the gaps between the claws, resulting in positioning deviations that are difficult to adjust. Summary of the Invention
[0003] To overcome the shortcomings of the prior art, this application proposes a chain clamping box conveying mechanism with adjustable spacing, wherein the spacing between the clamps can be adjusted, thereby effectively ensuring the accuracy of the conveying and positioning of items.
[0004] The technical problem solved by this application is achieved through the following technical solution:
[0005] An adjustable-pitch chain box conveying mechanism includes a chain frame, chain assemblies, a first motor, and a second motor. The chain frame is a horizontally arranged elongated shelf structure. Two sets of chain assemblies are installed parallel to each other on the chain frame. The chain assemblies are used to limit and push the box. The first motor and the second motor are respectively installed at both ends of the chain frame along its length. The first motor and the second motor control the two sets of chain assemblies respectively.
[0006] Moreover, multiple pawls are evenly spaced on the chains of the two sets of chain assemblies, with the pawls extending cantilevered outwards from the chain frame.
[0007] Moreover, both the first motor and the second motor are servo motors.
[0008] Furthermore, the chain frame contains a first chain, a second chain, a third chain, and a fourth chain arranged sequentially from top to bottom. The first chain and the fourth chain are respectively connected to a second motor and are controlled by the second motor to rotate synchronously. The second chain and the third chain are respectively connected to a first motor and are controlled by the first motor to rotate synchronously.
[0009] Moreover, the first motor and the second motor are respectively limited and installed at the lower ends of both sides of the chain frame. The drive shafts of the first motor and the second motor both pass vertically through the chain frame. On the drive shaft inside the chain frame, the first sprocket, the second sprocket, the third sprocket and the fourth sprocket are arranged sequentially from top to bottom. The first sprocket, the second sprocket, the third sprocket and the fourth sprocket on both sides are respectively engaged with the first chain, the second chain, the third chain and the fourth chain.
[0010] Furthermore, a sleeve is fixedly connected between the second sprocket and the third sprocket, and a gap is maintained between the sleeve and the drive shaft.
[0011] Furthermore, the second and third sprockets are rotatably connected to the drive shaft of the second motor via bearings, while the first and fourth sprockets are fixedly connected to the drive shaft of the second motor.
[0012] Furthermore, the first and fourth sprockets are rotatably connected to the drive shaft of the second motor via bearings, while the second and third sprockets are fixedly connected to the drive shaft of the second motor.
[0013] The advantages and positive effects of this utility model are:
[0014] This invention employs dual servo motors to control two sets of chains, allowing the transmission speed of the two sets of chains to be adjusted independently. This alters the distance between the grippers, making the gripper distance precisely adjustable, thus ensuring accurate positioning and adjustable spacing of the conveyed items. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of the adjustable-spacing chain clamp conveyor mechanism in the embodiment.
[0016] Figure 2 This is a front view of the adjustable-spacing chain clamp conveyor mechanism in the embodiment.
[0017] Figure 3 yes Figure 2 Sectional view along line AA (partial).
[0018] Reference numerals: 1. Chain frame; 2. Box body; 3. Chain assembly; 31. First chain; 32. Second chain; 33. Third chain; 34. Fourth chain; 35. Paw; 4. First motor; 5. Second motor; 51. Drive shaft; 52. First sprocket; 53. Second sprocket; 54. Sleeve; 55. Servo motor. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this application clearer and easier to understand, the application will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only for explaining this application and are not intended to limit this application.
[0020] An adjustable-pitch chain clamp conveyor mechanism, see attached. Figure 1 The system includes a chain frame 1, chain assemblies 3, a first motor 4, and a second motor 5. The chain frame 1 is a horizontally arranged elongated shelf structure. Two sets of chain assemblies 3 are installed parallel to each other on the chain frame 1. The chain assemblies 3 are used to limit and push the box body 2. The first motor 4 and the second motor 5 are respectively installed at both ends of the chain frame 1 along its length. The first motor 4 and the second motor 5 control the rotation speed of the two sets of chain assemblies 3 respectively.
[0021] Both the first motor 4 and the second motor 5 are servo motors 55, which can precisely control the motor speed through the PLC and adjust the speed at any time.
[0022] The structure of chain assembly 3 in this embodiment is shown in the appendix. Figure 2 As shown, the chain includes a first chain 31, a second chain 32, a third chain 33, a fourth chain, and a pawl 35. The first chain 31, the second chain 32, the third chain 33, and the fourth chain 34 are arranged sequentially from top to bottom inside the chain frame 1. Multiple pawls 35 are evenly spaced on the first chain 31, the second chain 32, the third chain 33, and the fourth chain 34. The pawls 35 extend outward in a cantilever manner from the outside of the chain frame 1. The pawls 35 move synchronously with the chain and are used to push the housing 2, so that the housing 2 moves with the pawls 35.
[0023] The first chain 31 and the fourth chain 34 are respectively connected to the second motor 5. The first chain 31 and the fourth chain 34 are controlled by the second motor 5 to rotate synchronously. The first chain 31 and the fourth chain 34 are the first chain 31 assembly 3.
[0024] The second chain 32 and the third chain 33 are respectively connected to the first motor 4. The second chain 32 and the third chain 33 are controlled by the first motor 4 to rotate synchronously. In this embodiment, the second chain 32 and the third chain 33 are both components 3 of the second chain 32.
[0025] The rotational speed of the first chain assembly 31 and the second chain assembly 32 can be changed, which allows the spacing between the pawl 35 of the first chain assembly 31 and the pawl 35 of the second chain assembly 32 to be adjusted.
[0026] The drive structure of chain assembly 3 is shown in the appendix. Figure 3 As shown, taking the end where the second motor 5 is located as an example, the drive structure of the chain assembly 3 includes a servo motor 55, a drive shaft 51, a first sprocket 52, a second sprocket 53, a third sprocket, and a fourth sprocket.
[0027] The servo motor 55 is limited and installed at the lower end of the chain frame 1. The output shaft of the servo motor 55 is coaxially connected to the drive shaft 51. The drive shaft 51 passes vertically through the chain frame 1. On the drive shaft 51 inside the chain frame 1, a first sprocket 52, a second sprocket 53, a third sprocket, and a fourth sprocket are arranged sequentially from top to bottom. The first sprocket 52, the second sprocket 53, the third sprocket, and the fourth sprocket respectively mesh with the first chain 31, the second chain 32, the third chain 33, and the fourth chain 34.
[0028] A sleeve 54 is fixedly connected between the second sprocket 53 and the third sprocket. A gap is maintained between the sleeve 54 and the drive shaft 51. A bearing is provided between the second sprocket 53 and the drive shaft 51. The drive shaft 51 and the second sprocket 53 assembly can rotate freely relative to each other.
[0029] Both the first sprocket 52 and the fourth sprocket are fixedly connected to the drive shaft 51, and the drive shaft 51 of the second motor 5 drives the first sprocket 52 and the fourth sprocket to rotate synchronously.
[0030] The installation structure of the drive shaft 51 of the first motor 4 is not shown in the accompanying drawings of the instruction manual. Its principle is the same as that of the end where the second motor 5 is located. The difference is that the second sprocket 53 and the third sprocket are fixedly connected to the drive shaft 51 of the first motor 4, while the first sprocket 52 and the fourth sprocket are connected to the drive shaft 51 of the first motor 4 through bearings and can rotate freely.
[0031] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A chain clamp box conveying mechanism with adjustable spacing, characterized in that, It includes a chain frame, chain assemblies, a first motor, and a second motor. Two sets of chain assemblies are installed parallel to each other on the chain frame. The chain assemblies are used to limit and push the box. The first motor and the second motor are installed at both ends of the chain frame along its length, and the first motor and the second motor control the two sets of chain assemblies respectively.
2. The adjustable-pitch chain clamp conveyor mechanism according to claim 1, characterized in that, The two sets of chain assemblies each have multiple pawls evenly spaced on their chains, with the pawls extending cantilevered outwards from the chain frame.
3. The adjustable-pitch chain clamp conveyor mechanism according to claim 1, characterized in that, Both the first motor and the second motor are servo motors.
4. The adjustable-pitch chain clamp conveyor mechanism according to claim 1, characterized in that, The chain frame contains a first chain, a second chain, a third chain, and a fourth chain arranged sequentially from top to bottom. The first chain and the fourth chain are respectively connected to a second motor and are controlled by the second motor to rotate synchronously. The second chain and the third chain are respectively connected to a first motor and are controlled by the first motor to rotate synchronously.
5. The adjustable-pitch chain clamp conveyor mechanism according to claim 4, characterized in that, The first motor and the second motor are respectively limited and installed at the lower ends on both sides of the chain frame. The drive shafts of the first motor and the second motor pass vertically through the chain frame. On the drive shaft inside the chain frame, the first sprocket, the second sprocket, the third sprocket and the fourth sprocket are arranged sequentially from top to bottom. The first sprocket, the second sprocket, the third sprocket and the fourth sprocket on both sides are respectively engaged with the first chain, the second chain, the third chain and the fourth chain.
6. The adjustable-pitch chain clamp conveyor mechanism according to claim 5, characterized in that, A sleeve is fixedly connected between the second sprocket and the third sprocket, and a gap is maintained between the sleeve and the drive shaft.
7. The adjustable-pitch chain clamp conveyor mechanism according to claim 5, characterized in that, The second and third sprockets are rotatably connected to the drive shaft of the second motor via bearings, while the first and fourth sprockets are fixedly connected to the drive shaft of the second motor.
8. The adjustable-pitch chain clamp conveyor mechanism according to claim 1, characterized in that, The first and fourth sprockets are rotatably connected to the drive shaft of the second motor via bearings, while the second and third sprockets are fixedly connected to the drive shaft of the second motor.