A tension adjustment device for a belt feeder
By combining the comb teeth and convex points with the scale markings, the problem of uneven tension adjustment in small belt feeders is solved, achieving precise tension control without the need for tape measure calibration, and ensuring consistent tension on both sides of the conveyor belt.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINGXING COUNTY JIXING HEAVY CALCIUM TECHNOLOGY CO LTD
- Filing Date
- 2025-08-22
- Publication Date
- 2026-06-19
AI Technical Summary
In existing small belt feeders, the tension adjustment on both sides is uneven, mainly because the tape measure calibration is easily affected by the viewing angle deviation and the difference in operating habits, resulting in inconsistent tension.
The system uses a combination of comb teeth and convex points, along with a ring scale and pointer one for initial positioning. It uses sound to indicate the consistency of the screw rotation count, and then uses a horizontal scale and pointer two for secondary calibration to ensure that the screws on both sides rotate synchronously and achieve tension balance.
It ensures tension balance on both sides without the need for measuring with a tape measure, reducing human error and ensuring the uniformity and accuracy of conveyor belt tension adjustment.
Smart Images
Figure CN224376747U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tension adjustment devices, and in particular to a tension adjustment device for a belt feeder. Background Technology
[0002] Existing small belt feeders typically use a spiral tensioning device for adjusting the conveyor belt tension. This device is installed on the bearing seat of the tail roller and consists of an adjusting screw, nut, slide rail, and fixed frame. The nut is loosened manually, and the screw is rotated to move the bearing seat of the tail roller forward or backward along the slide rail, thus tightening or loosening the conveyor belt. The belt feeder has spiral tensioning devices on both sides of the tail roller, requiring adjustment on both sides. Since the conveyor belt tension needs to be balanced on both sides during adjustment, the operator must use a measuring tape to measure the distance between the bearing seat and the tail end of the feeder frame.
[0003] During use, since the smallest scale of the measuring tape is usually 1mm, the visual reading is easily affected by the angle deviation, and different operating habits of workers (such as the force of tightening the measuring tape, the difference in the selection of the measurement reference point, etc.) will all lead to differences in the tension of the adjustment on both sides. Utility Model Content
[0004] In view of the problem that the calibration tension of the measuring tape is prone to difference in the above or existing technology, this utility model is proposed.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A primary positioning component, including a belt feeder tail end, wherein an adjustment component for adjusting tension is provided on the outer side of the belt feeder tail end, and a sound comb tooth that emits a prompt sound upon triggering is fixedly installed on the front of the belt feeder tail end; a ring-shaped scale with interlaced markings is provided on the front of the belt feeder tail end; and a raised point for triggering the sound and a pointer for calibration positioning are provided on the outer side of the adjustment component; a secondary calibration component, including a horizontal scale mark, wherein the horizontal scale mark is provided on the outer side of the belt feeder tail end, and a pointer is provided on the top of the adjustment component.
[0006] As a preferred embodiment of the tension adjustment device for the belt feeder of this utility model, the adjustment component includes a limiting slide rail, which is fixedly installed on the outer side of the tail end of the belt feeder. A bearing seat is slidably installed on the outside of the limiting slide rail, a screw is installed on the internal thread of the bearing seat, and a nut is installed on the external thread of the screw.
[0007] As a preferred embodiment of the tension adjustment device for the belt feeder of this utility model, the rotating end of the screw is provided with a hexagonal hole, and a limiting block is provided on the outside of the screw.
[0008] As a preferred embodiment of the tension adjustment device for the belt feeder of this utility model, a circular hole is provided inside the tail end of the belt feeder, and the size of the circular hole provided inside the tail end of the belt feeder corresponds to the size of the limiting circular block provided outside the screw, and the limiting circular block provided outside the screw is rotatably installed inside the circular hole provided inside the tail end of the belt feeder.
[0009] As a preferred embodiment of the tension adjustment device for the belt feeder of this utility model, the protrusions correspond to the positions of the comb teeth of the sound comb, and the protrusions and the pointer are both fixedly installed on the outside of the rotating end of the screw.
[0010] As a preferred embodiment of the tension adjustment device for the belt feeder of this utility model, the annular scale is composed of two sets of annular scales, and the two sets of scales are evenly distributed with alternating inner and outer edges.
[0011] As a preferred embodiment of the tension adjustment device for the belt feeder of this utility model, the bottom of the second pointer is fixedly installed with the top of the bearing seat, and the top of the second pointer is in contact with the bottom of the horizontal scale mark.
[0012] The beneficial effects of the tension adjustment device for the belt feeder of this utility model are as follows:
[0013] 1. By using the combination of the comb teeth and the raised points, the comb teeth bend upon contact with the raised points and generate sound upon rebound, thus indicating to the operator the number of screw rotations. Combined with the positioning assistance of the ring scale and pointer one, the number of screw rotations on both sides can be kept consistent, eliminating the need for measurement and calibration with a tape measure, and minimizing deviations, thereby ensuring the balance of tension on both conveyor belts.
[0014] 2. By setting a horizontal scale and pointer two, and using pointer two to follow the movement of the bearing seat and stop at a specified scale, calibration can be performed using the scales on both sides after the initial positioning, avoiding minor deviations. The positioning method with both scales corresponding further ensures tension balance and avoids deviations. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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.
[0016] Figure 1 This is a schematic diagram of the tension adjustment device for a belt feeder.
[0017] Figure 2 This is a cross-sectional view of the tension adjustment device of a belt feeder.
[0018] Figure 3 This is a schematic diagram of the external structure of the initial positioning component of the tension adjustment device for a belt feeder.
[0019] Figure 4 This is a schematic diagram of the secondary calibration component of the tension adjustment device for a belt feeder.
[0020] In the diagram: 10. Tail end of belt feeder; 11. Adjustment component; 111. Limit slide rail; 112. Bearing seat; 113. Screw; 114. Nut; 12. Comb teeth; 13. Circular scale mark; 14. Raised dot; 15. Pointer one; 20. Horizontal scale mark; 21. Pointer two. Detailed Implementation
[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0022] Example 1, referring to Figures 1-3 This is the first embodiment of the present invention. This embodiment provides a tension adjustment device for a belt feeder, which can achieve a tension balance effect by controlling the number of rotations of the positioning control screw 113. It includes an initial positioning component, including a belt feeder tail end 10. An adjustment component 11 for adjusting the tension force is provided on the outer side of the belt feeder tail end 10. A sound comb 12 that emits a prompt sound when triggered is fixedly installed on the front side of the belt feeder tail end 10. A ring scale 13 with interlaced markings is provided on the front side of the belt feeder tail end 10. A protrusion 14 for triggering the sound and a pointer 15 for calibration positioning are provided on the outer side of the adjustment component 11.
[0023] Specifically, by using a hexagonal wrench to enter the hexagonal hole, when the screw 113 is rotated, the protrusion 14 can contact the comb teeth 12, causing the comb teeth 12 to bend, rotate, and spring back, generating sound through vibration to indicate the approximate number of rotations to the operator. The rotation of the screw 113 also synchronously drives the pointer 15 to rotate, thus placing the pointer in a fixed position. This ensures that the rotation of the screws 113 on both sides can be precisely maintained at the same number of rotations, thereby controlling the tension of the conveyor belts on both sides to maintain balance.
[0024] Furthermore, the adjusting component 11 includes a limiting slide rail 111, which is fixedly installed on the outside of the tail end 10 of the belt feeder. A bearing seat 112 is slidably installed on the outside of the limiting slide rail 111. A screw 113 is installed on the internal thread of the bearing seat 112. A nut 114 is installed on the external thread of the screw 113. A hexagonal hole is provided at the rotating end of the screw 113, and a limiting block is provided on the outside of the screw 113. A circular hole is opened inside the tail end 10 of the belt feeder, and the size of the circular hole opened inside the tail end 10 of the belt feeder corresponds to the size of the limiting block provided on the outside of the screw 113. The limiting block provided on the outside of the screw 113 is rotatably installed inside the circular hole opened inside the tail end 10 of the belt feeder.
[0025] When adjusting the tension of the conveyor belt, the nut 114 is loosened by using an Allen wrench. The screw 113 is rotated by the Allen wrench, which causes the bearing seat 112 to slide under the restriction of the limiting slide rail 111, changing the position of the bearing so that it moves forward or backward, thereby tightening or loosening the conveyor belt. At the same time, rotating the limiting block inside the circular hole can effectively limit the screw 113, keeping it always inside the tail end 10 of the belt feeder, preventing it from detaching.
[0026] Preferably, the protrusion 14 corresponds to the position of the comb teeth 12 of the tone comb, and the protrusion 14 and the pointer 15 are both fixedly installed on the outside of the rotating end of the screw 113. The annular scale 13 is composed of two sets of annular scales, and the two sets of scales are evenly distributed with alternating inner and outer edges.
[0027] It should be noted that the comb teeth 12 are fixedly installed on the front of the tail end 10 of the belt feeder. Whenever the screw 113 rotates, it will drive the protrusion 14 to rotate. Each time the protrusion 14 rotates, it will contact the comb teeth 12 once. When in contact, the comb teeth 12 will bend. During the rebound process, a crisp sound will be emitted due to vibration. The number of sound counts controls the approximate number of rotations of the screw 113. Then, it is only necessary to make the pointer 15 correspond to the annular scale mark 13 to make the screws 113 on both sides rotate the same number of times.
[0028] In use, first place the Allen wrench on the outside of the nut 114, then turn the wrench to loosen the nut 114, allowing the Allen wrench to be inserted into the hexagonal hole on the front of the screw 113. Then turn the wrench to allow the bearing seat 112 to move under the restriction of the limit slide rail 111 until it moves to the designated position, at which point you can stop turning the screw 113. When the screw 113 rotates, it will drive the protrusion 14 and the pointer 15 to rotate. When the protrusion 14 rotates, it will contact the comb teeth 12, causing it to vibrate and produce sound. When the screw 113 on the other side rotates, it should also produce the same number of sounds. Then, you only need to perform positioning calibration. By controlling the positions of the pointers 15 on both sides and the scale corresponding to the annular scale 13, you can make them be in the same position to achieve synchronous rotation of the screw 113, thus keeping the tension on both sides of the conveyor belt balanced after adjustment.
[0029] The tension adjustment device can be installed on one side only, while the other side is equipped with a relative limiting slide rail 111 and a bearing seat 112. If adjustment devices are installed on both sides, two workers are required to adjust them simultaneously to avoid obstructing the movement of the bearing seat 112, or a single worker is required to adjust them alternately on both sides.
[0030] Example 2, refer to Figure 4 This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a secondary calibration component for the tension adjustment device of the belt feeder based on embodiment 1. It further solves the problem of slight deviation in the initial positioning by means of secondary calibration positioning. It includes a secondary calibration component, including a horizontal scale mark 20. The horizontal scale mark 20 is set on the outside of the tail end 10 of the belt feeder. A pointer 21 is set on the top of the adjustment component 11. The bottom of the pointer 21 is fixedly installed with the top of the bearing seat 112, and the top of the pointer 21 is in contact with the bottom of the horizontal scale mark 20.
[0031] Specifically, when the bearing housing 112 moves, it makes the pointer 21 contact the corresponding horizontal scale mark 20, which can further calibrate the position of the pointers 21 on both sides and avoid slight deviations.
[0032] When in use, when the screw 113 moves the bearing housing 112, it will cause the pointer 21 to move. After the bearing housing 112 moves to the designated position and stops, and after the initial positioning adjustment, observe whether the positions of the pointers 21 on both sides correspond on the scale. If they do not correspond, it means that there is a deviation in the initial positioning, and fine adjustment can be made.
[0033] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A tension adjustment device for a belt feeder, characterized in that: include, The initial positioning component includes a belt feeder tail end (10), an adjustment component (11) for adjusting tension is provided on the outer side of the belt feeder tail end (10), a sound comb (12) for emitting a prompt sound by triggering is fixedly installed on the front of the belt feeder tail end (10), an annular scale (13) with staggered markings is provided on the front of the belt feeder tail end (10), and a protrusion (14) for triggering sound and a pointer (15) for calibration positioning are provided on the outside of the adjustment component (11). The secondary calibration component includes a horizontal scale (20), which is located on the outside of the tail end (10) of the belt feeder, and a pointer (21) is provided on the top of the adjustment component (11).
2. The tension adjustment device for the belt feeder as described in claim 1, characterized in that: The adjustment assembly (11) includes a limiting slide rail (111), which is fixedly installed on the outside of the tail end (10) of the belt feeder. A bearing seat (112) is slidably installed on the outside of the limiting slide rail (111). A screw (113) is installed on the internal thread of the bearing seat (112), and a nut (114) is installed on the external thread of the screw (113).
3. The tension adjustment device for the belt feeder as described in claim 2, characterized in that: The rotating end of the screw (113) is provided with a hexagonal hole, and a limiting block is provided on the outside of the screw (113).
4. The tension adjustment device for the belt feeder as described in claim 3, characterized in that: The tail end (10) of the belt feeder has a circular hole inside, and the size of the circular hole inside the tail end (10) of the belt feeder corresponds to the size of the limiting circular block set outside the screw (113). The limiting circular block set outside the screw (113) is rotatably installed inside the circular hole inside the tail end (10) of the belt feeder.
5. The tension adjustment device for the belt feeder as described in claim 4, characterized in that: The protrusion (14) corresponds to the position of the comb teeth (12) of the sound comb, and the protrusion (14) and the pointer (15) are both fixedly installed on the outside of the rotating end of the screw (113).
6. The tension adjustment device for the belt feeder as described in claim 1, characterized in that: The annular scale (13) consists of two sets of annular scales, and the two sets of scales are evenly distributed with alternating inner and outer scales.
7. The tension adjustment device for the belt feeder as described in claim 2, characterized in that: The bottom of the second pointer (21) is fixedly installed with the top of the bearing seat (112), and the top of the second pointer (21) is in contact with the bottom of the horizontal scale mark (20).