Conveyor belt with adjustable bending degree

Abstract

The invention relates to the field of conveying belts, in particular to a conveying belt with the adjustable curvature, and solves the problem that a conveying path of a traditional conveying belt is difficult to arrange flexibly. The conveying belt comprises a sectional structure which is formed by sequentially hinging a head conveying section, a middle conveying section and a tail conveying section, each section comprises a frame assembly composed of an inner supporting plate, an outer supporting plate, an upper supporting strip and a lower supporting strip, and a containing cavity is formed to protect internal mechanical parts. The transmission chain assembly is composed of a plurality of chain plate units, guide flanges are arranged on the two sides of the transmission chain assembly, and the transmission chain assembly is embedded in the mounting groove to form a continuous material supporting face. The driving system comprises a rotating gear, a transmission shaft and a motor, tooth crests are inserted into inserting holes of the chain plate units to drive the chains to move, the curvature adjusting mechanism is located at the hinged position of the adjacent conveying sections and comprises an adjusting gear and an arc-shaped toothed plate, the motor drives the gear to rotate along the arc-shaped toothed plate to achieve angle adjustment, and therefore the conveying belt can provide flexible and changeable conveying paths; and the equipment adaptability and the production line efficiency are improved.

Description

Technical Field

[0001] The invention relates to the technical field of conveyor belts, and in particular to a conveyor belt with adjustable curvature. Background Art

[0002] A conveyor belt, also known as a conveyor belt or a transmission belt, is a device used to continuously move materials between different processing points.

[0003] Traditional conveyor belts usually have a fixed shape and structure and cannot be adjusted according to different transmission routes. For production lines that need to operate in complex spatial layouts, traditional linear conveyor belts are difficult to meet the needs. Especially when it is necessary to change direction or flexibly arrange in three-dimensional space, traditional designs seem to be unable to cope with it; once the fixed structure conveyor belt is installed, any modification or adjustment often requires a large amount of engineering, including disassembly, reconfiguration or even replacement of the entire system, which is not only time-consuming but also increases maintenance costs; in some application scenarios, such as the packaging industry or automated assembly lines, due to the diversity of materials and changes in production line layout, traditional conveyor belts cannot effectively cope with these changes, resulting in reduced production efficiency, and may even cause problems such as material blockage or damage. Summary of the invention

[0004] The purpose of the present invention is to provide a conveyor belt with adjustable curvature, so as to solve the technical problem that it is difficult to realize flexible arrangement of the transport path during the use of the current traditional conveyor belt device.

[0005] The present invention provides a conveyor belt with adjustable curvature, comprising: a segmented conveying structure, comprising a head-end conveying section, a middle-end conveying section and a terminal conveying section which are hinged in sequence, each conveying section comprising a frame assembly, wherein the frame assembly is surrounded by an inner support plate, an outer support plate, an upper support bar and a lower support bar to form a receiving cavity; a transmission chain assembly, comprising a plurality of chain plate units, each chain plate unit having guide flanges on both sides, which can be slidably embedded in the mounting grooves on the tops of the inner and outer support plates to form a continuous material supporting surface; a driving system, comprising a rotating gear, a transmission shaft and a conveying driving motor, wherein the rotating gear is installed in the receiving cavity of the head-end conveying section through a bearing, and the tooth top of the rotating gear can be inserted into the insertion hole of the chain plate unit to drive the transmission chain to move; a curvature adjustment mechanism, which is arranged at the hinge of adjacent conveying sections, and comprises a meshing adjustment gear and an arc-shaped tooth plate, and the adjustment gear is driven by a motor to rotate along the arc-shaped tooth plate to achieve angle adjustment of adjacent conveying sections.

[0006] According to one embodiment of the present invention, the axial directions of the adjusting gear and the arcuate tooth plate of the curvature adjusting mechanism are perpendicular to the extension plane of the conveying section, and the adjusting gear is arranged at the end of the previous conveying section, and the arcuate tooth plate is arranged at the head end of the next conveying section.

[0007] According to one embodiment of the present invention, the number of the middle-end conveying sections is at least two, and adjacent middle-end conveying sections are connected by the curvature adjustment mechanism.

[0008] According to one embodiment of the present invention, the chain plate unit includes: a base plate portion having a material contact plane; a first hinge portion and a second hinge portion, which are respectively arranged at both ends of the base plate portion; and a guide flange extending along both sides of the base plate portion, and its cross-sectional shape is adapted to the cross-sectional shape of the mounting groove.

[0009] According to one embodiment of the present invention, a spring compensation mechanism is further included, which is connected between adjacent conveying sections and is used to buffer stress fluctuations when the conveyor belt is bent.

[0010] According to one embodiment of the present invention, a self-lubricating gasket is provided in the installation groove, and the thickness of the self-lubricating gasket is 1 / 5-1 / 3 of the height of the installation groove.

[0011] According to one embodiment of the present invention, an auxiliary support system is also included, which includes: a main support base with an inverted T-shaped cross-section; a bracket arranged on the top of the main support base, and the bracket is provided with a receiving groove matching the shape of the conveying section.

[0012] According to one embodiment of the present invention, a non-slip pad is provided at the bottom of the bracket, and the non-slip pad is made of a rubber material with a high friction coefficient.

[0013] According to one embodiment of the present invention, it also includes an airflow control system, including: an air suction member, which is arranged in the accommodating cavity of the head end conveying section; and an adsorption hole array, which is evenly distributed on the material contact plane of the chain plate unit.

[0014] According to one embodiment of the present invention, it also includes an intelligent control system, including: a PLC controller electrically connected to the drive system; a laser scanner, arranged at the feeding end of the conveyor belt; and strain gauge sensors, which are arranged at intervals on each frame component.

[0015] The technical solution of the present invention has at least the following advantages and beneficial effects:

[0016] The present invention uses a segmented conveying structure and a curvature adjustment mechanism set at the hinge of adjacent conveying sections, so that the conveyor belt can adjust its curvature according to actual needs and adapt to complex spatial layouts and changeable transmission routes; it solves the problem that traditional linear conveyor belts are inconvenient to arrange in three-dimensional space, and improves the overall flexibility of the production line; at the same time, due to the setting of multiple conveying sections, once production needs change or equipment adjustment is required, there is no need to perform large-scale disassembly and reconfiguration like traditional conveyor belts. Only fine-tuning of specific parts is required, which greatly reduces maintenance costs and time consumption; the conveyor belt is equipped with an intelligent control system, including components such as a PLC controller, a laser scanner and a strain gauge sensor, which can achieve precise control of the material transmission process, thereby improving production efficiency; the self-lubricating pad reduces the friction of the transmission chain components during movement, prolongs the service life of the equipment, and reduces the noise level; the presence of the spring compensation mechanism can buffer stress fluctuations during the bending process of the conveyor belt and protect the equipment from damage; and the anti-slip foot pad in the auxiliary support system increases the stability of the entire device and ensures safe operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A schematic diagram of the overall structure of a conveyor belt with adjustable curvature provided in Example 1 of the present invention.

[0019] Figure 2 A schematic diagram of the relative positions of a rotating gear, a conveying drive motor and an air suction member of a conveyor belt with adjustable curvature provided in Example 1 of the present invention.

[0020] Figure 3 A front view of a conveyor belt with adjustable curvature provided in Example 1 of the present invention omitting each inner support plate.

[0021] Figure 4 A schematic diagram of the structure of a curvature adjustment mechanism for a conveyor belt with adjustable curvature provided in Example 1 of the present invention.

[0022] Figure 5 A schematic diagram of the chain plate unit structure of a conveyor belt with adjustable curvature provided in Example 1 of the present invention.

[0023] Figure 6 A schematic diagram of the overall structure of a conveyor belt with adjustable curvature provided in Example 2 of the present invention.

[0024] Reference numerals:

[0025] 100, head end conveying section; 111, inner support plate; 112, outer support plate; 113, upper support bar;

[0026] 210, chain plate unit; 211, base plate portion; 212, first hinge portion; 213, second hinge portion; 214, guide flange;

[0027] 310, rotating gear; 320, conveying drive motor;

[0028] 410, adjusting gear; 420, arc-shaped toothed plate;

[0029] 500, spring;

[0030] 710, main support base; 720, bracket;

[0031] 810, air suction piece;

[0032] 900. Auxiliary support plate. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0034] Example 1

[0035] Embodiment 1 of the present invention provides a conveyor belt with adjustable curvature, so as to provide a conveyor belt with a flexibly adjustable conveying path.

[0036] See also Figure 1 The conveyor belt with adjustable curvature provided by the embodiment of the present invention comprises:

[0037] The segmented conveying structure comprises a first conveying section 100, a middle conveying section and a terminal conveying section which are hinged in sequence, each conveying section comprises a frame assembly, the frame assembly is enclosed by an inner support plate 111, an outer support plate 112, an upper support bar 113 and a lower support bar to form a receiving cavity, the inner support plate 111 and the outer support plate 112 can be arc-shaped plates or straight plates, the upper support bar 113 and the lower support bar are gaskets, the upper support bar 113 and the lower support bar are relatively arranged with a horizontal plane as a reference, the inner support plate 111 and the outer support plate 112 are provided with support plates to support the upper support bar 113, and the upper support bar 113 and the lower support bar are connected to the inner walls of the inner support plate 111 and the outer support plate 112;

[0038] The transmission chain assembly includes a plurality of chain plate units 210, each of which is provided with a guide flange 214 on both sides, and is slidably embedded in the mounting grooves at the top of the inner support plate 111 and the outer support plate 112 to form a continuous material support surface, that is, the transmission chain assembly moves along the extension direction of the mounting groove;

[0039] See also Figure 2 , a driving system, including a rotating gear 310, a transmission shaft and a conveying driving motor 320, wherein the rotating gear 310 is installed in the accommodating cavity of the head-end conveying section 100 through a bearing, and the tooth top of the rotating gear can be inserted into the insertion hole of the chain plate unit 210 to drive the transmission chain to move;

[0040] See also Figure 3 The curvature adjustment mechanism is arranged at the hinge of adjacent conveying sections, and includes a meshing adjusting gear 410 and an arc-shaped tooth plate 420. The adjusting gear 410 is driven by a motor to rotate along the arc-shaped tooth plate 420 to achieve angle adjustment of adjacent conveying sections. In this embodiment, the motor is a servo motor (rated torque 10Nm) connected to the gear shaft through a harmonic reducer, and the gear shaft is connected to the adjusting gear 410. The motor drives the adjusting gear 410 to rotate, and the gear rotates along the tooth plate to achieve relative movement of two adjacent conveying sections and bend in the horizontal direction. An absolute encoder is integrated at the end of the gear shaft to feed back angle data to the control system in real time.

[0041] In this embodiment, the axial directions of the adjusting gear 410 and the arc-shaped tooth plate 420 of the curvature adjusting mechanism are perpendicular to the extension plane of the conveying section, and the adjusting gear 410 is arranged at the end of the previous conveying section, and the arc-shaped tooth plate 420 is arranged at the head end of the next conveying section.

[0042] In this embodiment, the number of the middle-end conveying sections is at least two, and adjacent middle-end conveying sections are connected by the curvature adjustment mechanism.

[0043] See also Figure 4 In this embodiment, the chain plate unit 210 includes: a base plate portion 211, which has a material contact plane and a surface with anti-slip patterns; a first hinge portion 212 and a second hinge portion 213, which are respectively arranged at both ends of the base plate portion 211, the first hinge portion 212 is a protrusion, and the second hinge portion 213 is a slot, and adjacent chain plates are connected by a pin; a guide flange 214, which extends along both sides of the base plate portion 211, and its cross-sectional shape is adapted to the cross-sectional shape of the mounting groove. In this embodiment, the cross-section of the guide flange 214 is dovetail-shaped, which cooperates with the inverted dovetail groove of the mounting groove, and the gap is controlled at 0.1-0.3mm. In this embodiment, a socket is provided at the bottom of the chain plate, which meshes with the helical teeth of the rotating gear 310 so that the rotation of the rotating gear 310 drives the chain plate to move.

[0044] In this embodiment, adjacent conveying sections are connected through a curvature adjustment mechanism, which includes an adjustment support and an adjustment gear 410, an arcuate tooth plate 420 and a motor connected to the adjustment gear 410, wherein the adjustment support includes an I-shaped support, on which a support surface is provided, and both ends of the arcuate tooth plate 420 are fixedly connected to the adjustment support, and the motor is provided on the support surface. The motor drives the adjustment gear 410 to rotate. Since the adjustment gear 410 and the arcuate tooth plate 420 are meshed, the adjustment gear 410 is rotated circumferentially along the arcuate tooth plate 420. Since the adjustment support is connected to the frame assembly, the frame assembly drives the entire conveying section to rotate to adjust the curvature. In this embodiment, the adjustment support members of two adjacent curvature adjustment mechanisms can also be connected by a spring 500 so that they can quickly return to their original state after the external force is removed.

[0045] In this embodiment, a spring compensation mechanism is also included, which is connected between adjacent conveying sections and is used to buffer stress fluctuations when the conveyor belt is bent.

[0046] In this embodiment, a self-lubricating gasket is provided in the mounting groove, and its thickness is 1 / 5-1 / 3 of the height of the mounting groove. The self-lubricating gasket is a polytetrafluoroethylene gasket containing graphite embedded in the mounting groove to reduce the friction coefficient to below 0.08.

[0047] See also Figure 2 In this embodiment, an air flow control system is also included, including: an air suction member 810, which is arranged in the accommodating chamber of the head end conveying section 100. In this embodiment, the air suction member 810 is a centrifugal fan (air volume 800m

[0048] / h) is connected to the head-end accommodating cavity through a hose; an adsorption hole array is evenly distributed on the material contact plane of the chain plate unit 210. In this embodiment, the adsorption holes are Φ2mm conical holes arranged in a 15×15mm matrix, and a filter cotton layer is provided at the bottom of the holes to achieve negative pressure adsorption, which can act on light materials and form a 300-500Pa negative pressure zone on the chain plate surface to enhance the adhesion of light and thin materials. The filtration system can also capture particulate matter.

[0049] In this embodiment, an intelligent control system is also included, including: a PLC controller, which is electrically connected to the drive system. In this embodiment, the PLC controller is a Siemens S7-1200 series, and each actuator is connected via a PROF I NET bus; a laser scanner, which is arranged at the feeding end of the conveyor belt. In this embodiment, the laser scanner is a SICK LMS111 type with a scanning frequency of 50 Hz, and generates a three-dimensional point cloud path planning; a strain gauge sensor, which is arranged at intervals on each frame component. In this embodiment, the strain gauge sensor is a Wheatstone bridge structure and is mounted on the stress concentration area of ​​the frame.

[0050] See also Figure 5In this embodiment, auxiliary support plates 900 are provided at intervals in each conveying section along the extending direction of the conveying section to increase the supporting effect on the conveyed materials.

[0051] The following is a description of the use of the conveyor belt with adjustable curvature of the present invention:

[0052] When in use, the motor of the curvature adjustment mechanism drives the adjacent conveying sections to rotate, so that the curvature of the adjacent conveying sections in the horizontal direction changes, thereby achieving curvature adjustment.

[0053] Example 2

[0054] Embodiment 2 of the present invention provides a conveyor belt with adjustable curvature, so as to provide a conveyor belt with a flexibly adjustable conveying path.

[0055] See also Figure 6 The conveyor belt with adjustable curvature provided in the embodiment of the present invention is different from that in embodiment 1 only in that, in the present embodiment, an auxiliary support system is also included, which includes: a main support base 710 having an inverted T-shaped cross-section; a bracket 720, which is arranged on the top of the main support base 710, and the bracket 720 is provided with a receiving groove matching the shape of the conveying section.

[0056] In this embodiment, a non-slip pad is provided at the bottom of the bracket 720, and the non-slip pad is made of a rubber material with a high friction coefficient.

[0057] The embodiments of the present invention have at least the following advantages:

[0058] The present invention uses a segmented conveying structure and a curvature adjustment mechanism set at the hinge of adjacent conveying sections, so that the conveyor belt can adjust its curvature according to actual needs and adapt to complex spatial layouts and changeable transmission routes; it solves the problem that traditional linear conveyor belts are inconvenient to arrange in three-dimensional space, and improves the overall flexibility of the production line; at the same time, due to the setting of multiple conveying sections, once production needs change or equipment adjustment is required, there is no need to perform large-scale disassembly and reconfiguration like traditional conveyor belts. Only fine-tuning of specific parts is required, which greatly reduces maintenance costs and time consumption; the conveyor belt is equipped with an intelligent control system, including components such as a PLC controller, a laser scanner and a strain gauge sensor, which can achieve precise control of the material transmission process, thereby improving production efficiency; the self-lubricating pad reduces the friction of the transmission chain components during movement, prolongs the service life of the equipment, and reduces the noise level; the presence of the spring compensation mechanism can buffer stress fluctuations during the bending process of the conveyor belt and protect the equipment from damage; and the anti-slip foot pad in the auxiliary support system increases the stability of the entire device and ensures safe operation.

[0059] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A conveyor belt with adjustable curvature, characterized in that: include: The segmented conveying structure comprises a first conveying section, a middle conveying section and a terminal conveying section which are hinged in sequence, each conveying section comprises a frame assembly, and the frame assembly is surrounded by an inner support plate, an outer support plate, an upper support bar and a lower support bar to form a receiving cavity; The transmission chain assembly comprises a plurality of chain plate units, each of which is provided with guide flanges on both sides and can be slidably embedded in the mounting grooves on the top of the inner and outer support plates to form a continuous material support surface; The driving system includes a rotating gear, a transmission shaft and a conveying driving motor. The rotating gear is installed in the accommodating cavity of the head-end conveying section through a bearing. The tooth top of the rotating gear can be inserted into the insertion hole of the chain plate unit to drive the transmission chain to move. The curvature adjustment mechanism is arranged at the hinge of adjacent conveying sections, and comprises meshing adjustment gears and arc-shaped tooth plates. The adjustment gears are driven by a motor to rotate along the arc-shaped tooth plates to achieve angle adjustment of adjacent conveying sections.

2. The conveyor belt with adjustable curvature according to claim 1, characterized in that: The axial directions of the adjusting gear and the arc-shaped tooth plate of the curvature adjusting mechanism are perpendicular to the extension plane of the conveying section, and the adjusting gear is arranged at the end of the previous conveying section, and the arc-shaped tooth plate is arranged at the head end of the next conveying section.

3. The conveyor belt with adjustable curvature according to claim 1, characterized in that: The number of the middle-end conveying sections is at least two, and adjacent middle-end conveying sections are connected by the curvature adjustment mechanism.

4. The conveyor belt with adjustable curvature according to claim 1, characterized in that: The chain plate unit comprises: A substrate portion having a material contact plane; The first hinge part and the second hinge part are respectively arranged at two ends of the base plate part; The guide flanges extend along both sides of the base plate, and the cross-sectional shape of the guide flanges matches the cross-sectional shape of the mounting grooves.

5. The conveyor belt with adjustable curvature according to claim 1, characterized in that: It also includes a spring compensation mechanism, which is connected between adjacent conveying sections and is used to buffer stress fluctuations when the conveyor belt is bent.

6. The conveyor belt with adjustable curvature according to claim 1, characterized in that: A self-lubricating liner is arranged in the installation groove, and the thickness of the self-lubricating liner is 1 / 5-1 / 3 of the height of the installation groove.

7. The conveyor belt with adjustable curvature according to claim 1, characterized in that: Also included is an auxiliary support system, which includes: The main support base has an inverted T-shaped cross section; The bracket is arranged on the top of the main supporting base, and the bracket is provided with a receiving groove matching the shape of the conveying section.

8. The auxiliary support system according to claim 7, characterized in that: The bottom of the bracket is provided with an anti-skid pad, and the anti-skid pad is made of a rubber material with a high friction coefficient.

9. The conveyor belt with adjustable curvature according to claim 1, characterized in that: Also included is an airflow control system, including: The air suction member is arranged in the accommodating cavity of the conveying section at the head end; The adsorption hole array is evenly distributed on the material contact surface of the chain plate unit.

10. The conveyor belt with adjustable curvature according to any one of claims 1 to 9, characterized in that: It also includes an intelligent control system, including: A PLC controller, electrically connected to the drive system; Laser scanner, located at the feed end of the conveyor belt; Strain gauge sensors are arranged at intervals on each frame assembly.

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