Modularized conveying belt with straight plate type metal reinforcing strips
By setting straight-plate metal reinforcing strips and low-friction coefficient pins at the modular belt unit connections, the problem of plastic main components breaking due to excessive sprocket meshing force was solved, thus improving the tensile strength and load capacity of the conveyor.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2026-03-10
AI Technical Summary
When transporting heavy-duty products, the toothed cavity of the plastic main body of the existing modular belt unit is prone to breakage due to the excessive force when the sprockets mesh, which means that the tensile strength of the metal reinforcing strip cannot be effectively improved, and thus cannot meet the conveying requirements of heavy-duty products.
The sprocket engagement chamber is moved from the modular belt unit plate surface to the connection point. A pin made of straight metal reinforcing strip and low friction coefficient material is used. The sprocket pressure is transmitted to the pin through the rear lug, which avoids excessive stress on the pure plastic structure and enhances the tensile strength of the connection point.
It effectively avoids the breakage of the plastic structure, improves the tensile strength of the modular belt unit, enhances the load capacity of the conveyor, and achieves higher tensile strength and load capacity.
Smart Images

Figure CN223982997U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cargo conveyor technology, specifically to a modular conveyor belt. Background Technology
[0002] Modular belts are typically used to transport discrete products or workpieces in production environments. These modular belt units are generally manufactured from plastic materials through injection molding. The modular belt units are arranged continuously perpendicular to the conveying direction and are positioned with adjacent modules in the conveying direction and rotatably connected by pins.
[0003] For conveying heavy-duty products, such as ATMs or automotive conveyors, modular belt units are required to be very robust, and those made from relatively inexpensive plastic materials may not meet the specific application requirements. Over the years, various industries have proposed a variety of solutions. One such example is known through WO2013 / 077734EN, which discloses a modular belt unit 1 with straight-plate-type metal reinforcing strips 14 in the plastic body component to improve the tensile strength of the modular belt. Figure 5 As shown, Figure 5 These are the original drawings from patent document WO2013 / 077734. The meanings of the reference numerals in WO2013 / 077734 are explained therein, and their meanings differ from those in the description of the drawings in this application. Figure 5 Reference numeral 6 in the diagram refers to the toothed cavity, which is the sprocket engagement cavity described in this application. This cavity is located in the middle of the plastic main body component. Although a metal reinforcing strip 14 is added, due to the meshing of the sprocket with the toothed cavity in the middle of the plastic main body component in existing conveyors, when the force transmitted by the steel or nylon sprocket is sufficiently large, the pure plastic structure at the plastic toothed cavity will break before the metal reinforcing strip. The tensile strength of the metal reinforcing strip cannot be demonstrated in actual conveyor applications. Even using thicker metal reinforcing strips and thicker pins cannot further improve the load capacity of the conveyor. Utility Model Content
[0004] The purpose of this invention is to provide a modular conveyor belt with straight metal reinforcing strips that can change the position of the sprocket meshing cavity to improve the load capacity of the conveyor belt.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0006] A modular conveyor belt with a straight metal reinforcing strip includes multiple modular belt unit bodies. Adjacent modular belt unit bodies are hinged by pins. The front end of each modular belt unit body has multiple front lugs, and the rear end of each modular belt unit body has multiple rear lugs. A notch is provided on the lower surface of each modular belt unit body in the area between two front lugs. The notch of the modular belt unit body and the rear lug of the adjacent modular belt unit body form a sprocket engagement cavity. The rear lugs transmit the pressure of the sprocket to the pins.
[0007] Furthermore, the pin is divided into a front pin and a rear pin, which are respectively inserted into the front lug and the rear lug of the modular belt unit body. The lower surface of the modular belt unit is provided with a through groove, and a straight metal reinforcing strip is provided in the through groove. The front hole and the rear hole on the straight metal reinforcing strip are respectively inserted into the front pin and the rear pin.
[0008] Furthermore, multiple through slots and straight metal reinforcing strips are provided, with the multiple straight metal reinforcing strips located in multiple through slots respectively.
[0009] Furthermore, the lower surface of the modular belt unit body is provided with multiple reinforcing strips.
[0010] Furthermore, the modular belt unit body is injection molded from plastic.
[0011] Furthermore, the straight-plate type metal reinforcing strip, the front pin, and the rear pin are made of friction-reducing materials with low friction coefficient and good wear resistance.
[0012] Furthermore, the front lug, rear lug, and modular belt unit body are integrally formed.
[0013] The beneficial effects of this utility model are as follows:
[0014] In this application, the sprocket engagement cavity is located at the connection between two modular belt unit bodies. The stress point between the sprocket and the modular belt unit body is on the rear lug. The rear lug at the engagement point is subjected to the pressure of the sprocket and transmitted to the pin shaft. This avoids the pure plastic structure from being subjected to excessive tensile force and breaking due to insufficient material strength when it engages with the sprocket. The tensile strength of the straight metal reinforcing strip is fully reflected in the actual application of the conveyor, and it makes it possible to further improve the tensile strength of the conveyor by increasing the thickness of the metal reinforcing strip and the diameter of the pin shaft. Attached Figure Description
[0015] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort:
[0016] Figure 1 This is a schematic diagram of the structure of the lower surface of this utility model;
[0017] Figure 2 for Figure 1 The 3D diagram shown;
[0018] Figure 3 for Figure 1 The diagram shows the structure of the modular unit body.
[0019] Figure 4 for Figure 3 The diagram shows the structure of a straight-plate type metal reinforcing strip;
[0020] Figure 5 This is a schematic diagram of a modular structure with units, based on existing technology.
[0021] In the diagram: 1. Modular belt unit body; 2. Front lug; 3. Rear lug; 4. Front pin; 5. Rear pin; 6. Through groove; 7. Straight metal reinforcing strip; 8. Front hole; 9. Rear hole; 10. Reinforcing strip; 11. Notch groove; 12. Sprocket engagement cavity. Detailed Implementation
[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other.
[0023] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper surface", "lower surface", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "forward", "reverse", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0024] like Figure 1 , 2As shown in Figures 3 and 4, a modular conveyor belt with straight metal reinforcing strips includes multiple modular belt unit bodies 1. Adjacent modular belt unit bodies 1 are hinged together by pins. Each modular belt unit body 1 has multiple front lugs 2 at its front end and multiple rear lugs 3 at its rear end. The front lugs 2, rear lugs 3, and modular belt unit bodies 1 are integrally formed. The modular belt unit body 1 is injection molded from plastic. A notch 11 is provided on the lower surface of the modular belt unit body, in the area between two front lugs. The notch 11 of the modular belt unit body and the rear lugs 3 of adjacent modular belt unit bodies form a sprocket engagement cavity 12. The rear lugs 3 transmit the pressure of the sprocket to the pins.
[0025] The pins are divided into a front pin 4 and a rear pin 5, which are respectively inserted into the front lug 2 and the rear lug 3 of the modular belt unit body 1. The lower surface of the modular belt unit is provided with a through groove 6, and a straight plate-shaped metal reinforcing strip 7 is provided in the through groove 6. The front hole 8 and the rear hole 9 on the straight plate-shaped metal reinforcing strip 7 are respectively inserted into the front pin 4 and the rear pin 5. There are 4 through grooves 6 and 4 straight plate-shaped metal reinforcing strips 7, and the 4 straight plate-shaped metal reinforcing strips are located in 4 through grooves.
[0026] The lower surface of the modular belt unit body 1 is provided with multiple reinforcing strips 10, and the notch 11 is formed by the reinforcing strips 10.
[0027] The straight-plate type metal reinforcing strip 7, the front pin 4, and the rear pin 5 are made of friction-reducing materials with low friction coefficient and good wear resistance.
[0028] Working principle: In existing modular belt unit bodies, the sprocket engagement cavity is located on the plate surface, not at the connection point. This application modifies the modular conveyor belt by moving the sprocket engagement cavity to the connection point between two modular belt unit bodies. The stress point between the sprocket and the modular belt unit body is on the rear lug. The rear lug at the engagement point is subjected to the pressure of the sprocket and transmitted to the pin shaft. This avoids the pure plastic structure from being subjected to excessive tensile force and breaking due to insufficient material strength when engaging with the sprocket. The tensile strength of the straight metal reinforcing strip is fully reflected in the actual application of the conveyor, and it makes it possible to further improve the tensile strength of the conveyor by increasing the thickness of the metal reinforcing strip and the diameter of the pin shaft.
[0029] Furthermore, those skilled in the art can combine and integrate the different embodiments or examples described herein, as well as the features of those different embodiments or examples, without contradiction. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.
Claims
1. A modular conveyor belt with straight plate type metal reinforcing strips, comprising a plurality of modular belt unit bodies, adjacent modular belt unit bodies are hingedly connected by a pin, a front end of the modular belt unit body is provided with a plurality of front lugs, and a rear end of the modular belt unit body is provided with a plurality of rear lugs, characterized in that: The area on the lower surface of the modular belt unit body between the two front lugs is provided with a notch groove, the notch groove of the modular belt unit body and the rear lug of the adjacent modular belt unit body enclose a sprocket meshing cavity, the rear lug transmits the pressure of the sprocket to the pin shaft.
2. Modular conveyor belt with straight plate metal reinforcing strips according to claim 1, characterized in that: The pin shaft is divided into a front pin shaft and a rear pin shaft, the front pin shaft and the rear pin shaft are respectively inserted into the front lug and the rear lug of the modular belt unit body, the lower surface of the modular belt unit is provided with a through groove, a straight plate type metal reinforcing strip is arranged in the through groove, and front holes and rear holes on the straight plate type metal reinforcing strip are respectively inserted into the front pin shaft and the rear pin shaft.
3. Modular conveyor belt with straight plate metal reinforcing strips according to claim 2, characterized in that: The lower surface of the modular belt unit body is provided with a reinforcing strip.
4. Modular conveyor belt with straight plate metal reinforcing strips according to claim 3, characterized in that: The through groove and the straight plate type metal reinforcing strip are provided with a plurality of reinforcing strips, and the plurality of straight plate type metal reinforcing strips are respectively located in the plurality of through grooves.
5. Modular conveyor belt with straight plate metal reinforcing strips according to claim 4, characterized in that: The lower surface of the modular belt unit body is provided with a plurality of reinforcing strips, and the notch groove is surrounded by the reinforcing strips.
6. Modular conveyor belt with straight plate metal reinforcing strips according to claim 5, characterized in that: The reinforcing strip, the front lug, the rear lug and the modular belt unit body are integrally formed.
7. Modular conveyor belt with straight plate metal reinforcing strips according to claim 6, characterized in that: The modular belt unit body is made of plastic injection.
8. Modular conveyor belt with straight plate metal reinforcing strips according to claim 7, characterized in that: The straight plate type metal reinforcing strip, the front pin shaft and the rear pin shaft are made of a friction coefficient low and wear resistant material.
9. The modular conveyor belt with straight plate metal reinforcing strips of claim 1, wherein: The front lug, the rear lug and the modular belt unit body are integrally formed.
Citation Information
Patent Citations
Modular conveyor mat and conveyor provided with a modular conveyor mat
WO2013077734A1