Adjustable pinch roller mechanism for plastic sheet conveyor

Abstract

The embodiment of the application provides an adjustable compression wheel mechanism for a plastic plate belt conveyor, which comprises a support, a swing rod, an elastic device and a compression wheel; the support is arranged on a rack of the plastic plate belt conveyor; the swing rod is in a long strip structure, the middle part of the swing rod is hinged to the support, and the compression wheel is hinged to the bottom end of the swing rod; the top end of the swing rod is connected to the support through the elastic device; and the side of the compression wheel, which is far away from the elastic device, is in contact with a conveying plate belt of the plastic plate belt conveyor. After the technical scheme is adopted, reliable meshing between the conveying plate belt and a chain wheel of the plastic plate belt conveyor can be realized during long-term operation of the plastic plate belt conveyor, the tooth skipping phenomenon is effectively avoided, and the service life of the conveying plate belt is increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile assembly, in particular to a pressing mechanism, more particularly to an adjustable pressing wheel mechanism for a plastic plate belt conveyor. BACKGROUND

[0002] In the automobile assembly line, more and more plastic plate belt conveyors are used for vehicle conveying. In the plastic plate belt conveyor, chain wheels at both ends are used for dragging, the inner side of the conveying plate belt has a toothed structure and can be engaged with the chain wheel, and the outer side is a conveying plane.

[0003] In the process of implementing the present application, the inventors have found that at least the following problems exist in the prior art:

[0004] During long-term operation of the plastic plate belt, the tooth skipping phenomenon often occurs, that is, the conveying plate belt cannot be correctly engaged with the chain wheel, at which time the conveying line cannot be normally operated and must be stopped for repair, thereby reducing the production efficiency. Therefore, how to avoid the tooth skipping phenomenon of the plastic plate belt conveyor is a problem to be solved. SUMMARY

[0005] The embodiment of the present application provides an adjustable pressing wheel mechanism for a plastic plate belt conveyor to solve the problem that the existing plastic plate belt conveyor is prone to tooth skipping.

[0006] To achieve the above purpose, the embodiment of the present application provides an adjustable pressing wheel mechanism for a plastic plate belt conveyor, which comprises a support, a swing rod, an elastic device and a pressing wheel; the support is arranged on the rack of the plastic plate belt conveyor; the swing rod is in a long strip shape, the middle part of the swing rod is hinged to the support, and the pressing wheel is hinged to the bottom end of the swing rod; the top end of the swing rod is connected to the support through the elastic device; the side of the pressing wheel away from the elastic device is in contact with the conveying plate belt of the plastic plate belt conveyor.

[0007] Further, the support comprises a spring mounting seat, and the spring mounting seat is provided with an opening; a screw rod is arranged through the opening, and the elastic device is a spring; the spring is sleeved outside the screw rod, the top end of the swing rod is connected to the front end of the screw rod, the rear end of the screw rod is connected with a locking nut, and the spring is abutted between the spring mounting seat and the locking nut.

[0008] Further, the support further comprises a horizontally arranged mounting plate and a support body fixedly connected above the mounting plate and arranged obliquely, and the spring mounting seat is arranged on the top surface of the support body; the screw rod is arranged parallel to the top surface of the support body.

[0009] Further, the included angle between the screw rod and the mounting plate is 20°-40°.

[0010] Further, a guide sleeve is sleeved between the spring and the screw rod; the guide sleeve is two in total and is distributed between the spring mounting seat and the locking nut.

[0011] Further, the support further comprises an adjusting cross plate, and the middle part of the swing rod is hingedly connected to the end part of the adjusting cross plate; the adjusting cross plate is provided with an oblong hole, and the adjusting cross plate is connected to the support main body in a screwing manner through the oblong hole.

[0012] Further, the pressing wheel is two in total, and the swing rod is two in total; the two swing rods are connected to the left and right sides of the support main body respectively; the two pressing wheels are connected with the corresponding swing rods respectively; the two swing rods are connected together through a cross rod; and the front end of the screw rod is hingedly connected to the cross rod.

[0013] Further, the outer edge of the pressing wheel is further provided with an elastic layer.

[0014] Further, the material of the elastic layer is rubber or polyurethane.

[0015] Further, the pressing wheel is further provided with a plurality of lightening holes.

[0016] The above technical scheme has the following beneficial effects:

[0017] In the technical scheme, the pressing wheel mechanism is arranged below the side of the chain wheel, and the pressing wheel is always extruded against the conveying plate belt running along the chain wheel through the cooperation of the connecting rod and the spring, so that most of the powder generated during the long-term operation of the plastic plate belt conveyor is extruded out due to the pressing of the mechanism, the powder is effectively avoided from being brought into the gap between the conveying plate belt and the chain wheel tooth shape, the original meshing through the load is improved, the existing pressing meshing is realized, the tooth skipping phenomenon is avoided, and the service life of the plastic plate belt is increased.

[0018] Further, the adjusting cross plate is arranged in the pressing wheel mechanism, the position of the pressing wheel can be adjusted through the adjusting cross plate, and the pressing wheel has better adaptability to various models. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort.

[0020] Figure 1 is a structural schematic view of an adjustable pressing wheel mechanism for a plastic plate belt conveyor according to an embodiment of the present application;

[0021] Figure 2is a working principle schematic diagram of an adjustable compression wheel mechanism of a plastic plate belt conveyor according to an embodiment of the present application;

[0022] Figure 3 is an application schematic diagram of a plastic plate belt conveyor according to an embodiment of the present application;

[0023] The drawing reference: 1, screw; 2, locking nut; 3, guide sleeve; 4, elastic device; 5, spring mounting seat; 6, adjusting cross plate; 61, long round hole; 7, swing lever; 8, swing lever pin; 9, compression wheel; 91, lightening hole; 10, compression wheel pin; 11, support body; 12, mounting plate; 14, clamping plate; 15, cross bar; 20, chain wheel; 21, conveying plate belt; 30, rack. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0025] As Figure 1 shown, the present application provides an adjustable compression wheel mechanism for a plastic plate belt conveyor, which comprises a support, a swing lever 7, an elastic device 4 and a compression wheel 9; the support is arranged on a rack 30 of the plastic plate belt conveyor; the swing lever 7 is in a long strip structure, the middle part of the swing lever 7 is hinged to the support, and the compression wheel 9 is hinged to the bottom end of the swing lever 7; the top end of the swing lever 7 is connected to the support through the elastic device 4; the side of the compression wheel 9 away from the elastic device 4 is in contact with a conveying plate belt 21 of the plastic plate belt conveyor.

[0026] The inventor found that the root cause of the tooth skipping phenomenon in the prior art is that a lot of powder is generated in the conveying plate belt 21 made of plastic material due to wear and other reasons during long-term operation, and if the powder cannot be cleaned in time, the powder will be brought into the gap between the conveying plate belt 21 and the chain wheel 20, thereby affecting the cooperation between the conveying plate belt 21 and the chain wheel 20, so that they cannot be correctly meshed, and at this time, the tooth skipping phenomenon occurs. Therefore, if the powder between the conveying plate belt 21 and the chain wheel 20 can be reduced or even eliminated, and appropriate external force is applied to the conveying plate belt 21 to make it closer to the chain wheel 20, the problem can be significantly improved.

[0027] Therefore, in the present technical solution, the adjustable compression wheel mechanism according to the present application is arranged at the chain wheel 20 of the existing plastic plate belt conveyor, and the adjustable compression wheel mechanism is arranged below the rear side of the chain wheel 20 (as Figure 2 ,Figure 3 When the plastic plate belt conveyor is running, the conveying plate belt 21 is moved in the direction shown by the arrow in the figure, i.e. the upper conveying plate belt 21 is moved from front to back, and after being turned over by the sprocket 20 at the end, the lower conveying plate belt 21 is formed, the lower conveying plate belt 21 is moved from back to front, and then when reaching the sprocket 20 (not shown in the figure) located in front, the lower conveying plate belt 21 is turned over to form the upper conveying plate belt 21, and the work is repeated in this way. In this process, the pressing wheel 9 is pressed against the conveying plate belt 21 from the lower side of the rear side of the sprocket 20 to the upper side of the front side, so as to push the conveying plate belt 21, so that most of the powder is squeezed out due to the pressing force, and the conveying plate belt 21 is better engaged with the sprocket 20 under the action of the external force, so as to avoid the gear tooth skipping and improve the production stability. Figure 2 , Figure 3

[0028] Due to the manufacturing precision of the conveying plate belt 21 and the sprocket 20, etc., the pressing wheel 9 and the conveying plate belt 21 may jump at the contact point, at this time, if the pressing wheel 9 is completely fixed, the jump cannot be compensated in time, the conveying plate belt 21 may be damaged due to excessive extrusion of the conveying plate belt 21 and the pressing wheel 9, or the two cannot be attached due to too large gap, and the tooth skipping still occurs, therefore, in the embodiment of the application, the elastic device 4 must be arranged, and the elastic force of the elastic device 4 is used to ensure that the pressing wheel 9 is always pressed on the conveying plate belt 21.

[0029] Further, the support includes a spring mounting seat 5, the spring mounting seat 5 is provided with an opening, the screw rod 1 is arranged through the opening, the elastic device 4 is a spring, the spring is sleeved on the outer side of the screw rod 1, the top end of the swing rod 7 is connected with the front end of the screw rod 1, the rear end of the screw rod 1 is connected with the locking nut 2, and the spring is abutted between the spring mounting seat 5 and the locking nut 2.

[0030] The pressing wheel 9 needs to be always pressed on the conveying plate belt 21 in the working process, and the elastic device 4 is used to provide the pressing force. In the application, as shown in the figure, the elastic device 4 is preferably a spring. The spring is arranged on the rear side of the spring mounting seat 5 and is limited between the locking nut 2 and the spring mounting seat 5. In the initial installation, the spring has a certain compression amount, and since the spring mounting seat 5 is fixedly arranged, the spring generates a forward pushing force on the screw rod 1 due to the deformation, the pushing force acts on the swing rod 7, the swing rod 7 generates a counterclockwise rotation trend with the swing rod pin 8 as the center, the front side of the pressing wheel 9 is extruded on the conveying plate belt 21, and the dust carried in the inner side of the conveying plate belt 21 is extruded to the side. Figure 2

[0031] ​​Further, the support further comprises a horizontally arranged mounting plate 12, and a support body 11 fixedly connected to the top of the mounting plate 12 and arranged obliquely, the spring mounting seat 5 is arranged on the top surface of the support body 11, and the screw rod 1 is arranged parallel to the top surface of the support body 11.

[0032] The mounting plate 12 is horizontally arranged so as to be connected with the rack 30 (as shown in Figure 3 ). During installation, the mounting plate 12 is clamped on the panel of the platform of the rack 30 through the clamping plate 14 with connecting bolts. The support body 11 is arranged obliquely, which is more convenient for arranging the adjustable compression wheel mechanism and reduces the space occupation. It is found through actual measurement and analysis that when the included angle between the screw rod 1 and the mounting plate 12 is 20°-40°, the structure of the adjustable compression wheel mechanism is more optimized.

[0033] Further, a guide sleeve 3 is further sleeved between the spring and the screw rod 1; the guide sleeve 3 is two in total and is arranged between the spring mounting seat 5 and the locking nut 2 in a spaced manner.

[0034] Since the screw rod 1 is thin, and the diameter of the spring is much larger than that of the screw rod 1 in order to ensure sufficient stability, the guide sleeve 3 can be sleeved outside the screw rod 1. The guide sleeve 3 plays a guiding role when the spring deforms, avoiding the occurrence of jamming and other phenomena. The guide sleeves 3 are used in pairs in front and back, and appropriate gaps are reserved between the two guide sleeves 3 to avoid interfering with the deformation of the spring.

[0035] Further, the support further comprises an adjusting cross plate 6, and the middle part of the swing rod 7 is hingedly connected to the end of the adjusting cross plate 6; the adjusting cross plate 6 is provided with an oblong hole 61, and the adjusting cross plate 6 is connected to the support body 11 in a screwing manner through the oblong hole 61.

[0036] In order to adapt to different models of plastic plate belt conveyors, in the present application, the swing rod 7 is not directly installed on the support body 11, but is connected to the support body 11 through the adjusting cross plate 6. When it is necessary to adjust the position of the compression wheel 9, the installation position of the adjusting cross plate 6 on the support body 11 can be changed. Preferably, the oblong hole 61 is arranged on the adjusting cross plate 6, so that the adjusting cross plate 6 has a certain front and back adjusting capability.

[0037] Further, the compression wheel 9 is two in total, and the swing rod 7 is two in total; the two swing rods 7 are respectively connected to the left and right sides of the support body 11; the two compression wheels 9 are respectively connected to the corresponding swing rods 7; the two swing rods 7 are connected together through a cross rod 15; and the front end of the screw rod 1 is hingedly connected to the cross rod 15.

[0038] The two compression wheels 9 are symmetrically arranged on the left and right sides of the support body 11, which can ensure the force balance of the adjustable compression wheel mechanism, and the swing rods 7 on which the two compression wheels 9 are arranged are connected into one body through the cross rod 15, so that the synchronous action of the two swing rods 7 can be realized. In addition, since the width size of the conveying plate belt 21 is large, after the two compression wheels 9 are used, the two compression wheels 9 can press the left and right sides of the conveying plate belt 21 respectively, so that better compression effect can be realized.

[0039] Further, the compression wheel 9 is made of hard metal or non-metal material inside to ensure sufficient strength, and an elastic layer is covered on the outside to avoid crushing the plastic conveying plate belt during use.

[0040] Further, the material of the elastic layer is rubber or polyurethane, which has good elasticity and wear resistance, and can well meet the demand of the use scene, so the compression wheel 9 can also be called a rubber-coated wheel.

[0041] Further, the compression wheel 9 is also provided with a plurality of lightening holes 91. The lightening holes 91 can effectively reduce the weight of the equipment without affecting the strength. In addition, the compression wheel 9 and the swing rod 7 are connected through the compression wheel pin shaft 10, and a bearing is embedded between the compression wheel pin shaft 10 and the compression wheel 9 to reduce friction and improve the service life of the compression wheel 9.

[0042] In the above detailed description, various features are combined together in a single embodiment to simplify the disclosure. Such disclosure method should not be interpreted as reflecting the intention that the embodiments of the claimed subject matter require more features than those clearly stated in each claim. On the contrary, as reflected in the appended claims, the present application is in a state of less than all the features of the disclosed single embodiment. Therefore, the appended claims are hereby expressly incorporated into the detailed description, wherein each claim is separately a preferred embodiment of the present application.

[0043] In order for any person skilled in the art to be able to implement or use the present application, the above discloses the disclosed embodiments. Various modifications of these embodiments are obvious to those skilled in the art, and the general principles defined herein can also be applied to other embodiments without departing from the spirit and protection scope of the present disclosure. Therefore, the present disclosure is not limited to the embodiments given herein, but is consistent with the broadest scope of the principles and novel features disclosed in the present application.

[0044] The above detailed description of the specific embodiments of the present application has been given to understand the purpose, technical solutions and beneficial effects of the present application. It should be understood that the above description is only a specific embodiment of the present application and is not used to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An adjustable clamping roller mechanism for a plastic sheet conveyor, characterized in that, The conveyor includes a support, a swing arm (7), an elastic device (4), and a pressure wheel (9). The support is mounted on the frame (30) of the plastic sheet conveyor. The swing arm (7) is a long strip structure. The middle part of the swing arm (7) is hinged to the support, and the pressure wheel (9) is hinged to the bottom end of the swing arm (7). The top end of the swing arm (7) is connected to the support through the elastic device (4). The side of the pressure wheel (9) away from the elastic device (4) is in contact with the conveyor belt (21) of the plastic sheet conveyor. And below the rear side of the sprocket (20), the pressure wheel (9) presses against the conveyor belt (21) on the front side and above, thereby pushing the conveyor belt (21) tight, so that the powder generated by wear during operation is squeezed out by the pressure force. The support includes a spring mounting seat (5) with an opening; a screw (1) passes through the opening; the elastic device (4) is a spring; the spring is sleeved on the outside of the screw (1); the top end of the rocker arm (7) is connected to the front end of the screw (1); the rear end of the screw (1) is connected to a locking nut (2); and the spring abuts against the spring mounting seat (5) and the locking nut (2). The support also includes a horizontally arranged mounting plate (12) and a support body (11) fixedly connected above the mounting plate (12) and arranged at an inclination. The spring mounting seat (5) is arranged on the top surface of the support body (11). The screw (1) is arranged parallel to the top surface of the support body (11). The included angle between the screw (1) and the mounting plate (12) is 20° to 40°.

2. The adjustable pressure roller mechanism for a plastic sheet conveyor as described in claim 1, characterized in that, A guide sleeve (3) is also provided between the spring and the screw (1); there are two guide sleeves (3), which are spaced apart between the spring mounting seat (5) and the locking nut (2).

3. The adjustable pressure roller mechanism for a plastic sheet conveyor as described in claim 1, characterized in that, The support also includes an adjusting plate (6), the middle part of the swing rod (7) is hinged to the end of the adjusting plate (6); the adjusting plate (6) is provided with an elongated hole (61), and the adjusting plate (6) is connected to the support body (11) by screwing through the elongated hole (61).

4. The adjustable pressure roller mechanism for a plastic sheet conveyor as described in claim 1, characterized in that, There are two clamping wheels (9) and two swing rods (7); the two swing rods (7) are respectively connected to the left and right sides of the support body (11); the two clamping wheels (9) are respectively connected to the corresponding swing rods (7); the two swing rods (7) are connected together by a crossbar (15); the front end of the screw (1) is hinged to the crossbar (15).

5. The adjustable pressure roller mechanism for a plastic sheet conveyor as described in claim 1, characterized in that, The outer edge of the clamping wheel (9) is also provided with an elastic layer.

6. The adjustable pressure roller mechanism for a plastic sheet conveyor as described in claim 5, characterized in that, The elastic layer is made of rubber or polyurethane.

7. The adjustable pressure roller mechanism for a plastic sheet conveyor as described in claim 1, characterized in that, The clamping wheel (9) is also provided with multiple weight reduction holes (91).

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