A conveying roller mounting structure and a tape-conveyor

Abstract

The utility model is suitable for digital printing field provides a kind of conveying roller mounting structure and guide tape type conveying device.Conveying roller mounting structure includes: vertical board, two piece vertical board interval arrangement;Conveying roller is respectively threaded in two piece vertical board;Driving assembly, driving end is connected with one end of conveying roller and drives conveying roller rotation;Supporting seat, it is below driving assembly and is fixed on vertical board, supporting seat is equipped with the slot on;Supporting plate, one end is connected with driving assembly, and the other end is inserted in the slot;Elastic supporting assembly, it is on supporting seat and provides the upward force to supporting plate, wherein, the bending moment that elastic supporting assembly provides to supporting plate is equal to the bending moment that driving assembly self gravity generates.The bending resistance of conveying roller in axial direction and the anti-swing setting in circumferential direction ensure that conveying roller can rotate smoothly and uniformly, and improve the accuracy of printing position and pattern form.

Description

Technical Field

[0001] This utility model belongs to the field of digital printing, and in particular relates to a conveyor roller mounting structure and a belt conveyor device. Background Technology

[0002] In digital printing equipment, there are various methods for conveying printing media. Based on the different methods, they can be divided into sheet-fed conveying, roll-fed conveying, flatbed conveying, and belt conveying. Belt conveying uses a driven roller to guide the printing media. The belt is anti-slip and wear-resistant. The printing media is placed on the belt and smoothly passes through the printing area with the belt's cyclical movement.

[0003] In existing belt conveyor structures, the printing media is transported by a drive assembly that drives a drive roller, which in turn drives a driven roller. The guide belt is fitted onto the drive and driven rollers and is driven to circulate, thus moving the printing media. To ensure the required tension on the printing media, the drive assembly needs extremely high power to drive the guide belt and circulate the printing media. This high-power drive assembly typically includes a high-power drive component, a matching high-power reduction assembly, and a coupling connecting the drive component to the drive roller. Therefore, the entire drive assembly plus the coupling is extremely heavy. The weight can be as high as 200 kg. The weight of the drive component can cause the drive roller to bend downwards beyond the allowable range of deflection. This bending can cause the drive roller to shake or vibrate when it rotates, thereby disrupting the "uniform speed + smooth" motion of the guide belt. This can lead to problems with the accuracy of the printing position and pattern shape, which can manifest as lateral misalignment of the pattern (inaccurate registration), longitudinal stretching / compression of the pattern (shape distortion), and local ink dot offset (decrease in clarity). In addition, it can also damage the stability of the guide belt, cause secondary failures, accelerate the wear and tear of equipment components, and shorten the service life. Utility Model Content

[0004] The conveyor roller mounting structure provided by this utility model aims to solve the problem in the prior art where the conveyor roller bends beyond the allowable range due to the excessive weight of the drive component, causing swaying or shaking during rotation.

[0005] This utility model is implemented as follows: a conveyor roller mounting structure, applied to a belt conveyor device, includes:

[0006] Elevating board;

[0007] The conveying roller has an end that is rotatably mounted on the vertical plate;

[0008] A drive assembly, the drive end of which is connected to the conveying roller through one end of the vertical plate and drives the conveying roller to rotate, the drive assembly and the conveying roller are respectively disposed on opposite sides of the vertical plate;

[0009] A support base is located below the drive assembly and fixed to the upright plate, and the support base is provided with a slot;

[0010] A support plate, one end of which is connected to the drive assembly, and the other end of which is inserted into the slot, the support plate being able to float up and down within the slot;

[0011] An elastic support assembly is disposed on the support base and provides an upward force to the support plate, wherein the bending moment generated by the force provided by the elastic support assembly to the support plate is equal to the bending moment generated by the weight of the drive assembly itself.

[0012] Furthermore, one end of the support plate is sleeved outside the drive assembly, and the side of the slot has an opening, through which the support plate is inserted into the slot.

[0013] Furthermore, the side of the support plate is provided with an abutment portion, and the elastic support assembly includes:

[0014] The base plate is fixed to the support base;

[0015] The pressure plate is movably disposed above the base plate and can abut against the lower part of the abutment portion;

[0016] A guide post is provided on the base plate and passes through the pressure plate, and the pressure plate can move up and down along the guide post;

[0017] An elastic element is sleeved on the guide post and located between the base plate and the pressure plate. The elastic element provides an upward force to the abutment portion through the pressure plate.

[0018] Furthermore, the elastic support assembly also includes an auxiliary connector detachably connected between the pressure plate and the base plate. When the auxiliary connector is connected between the pressure plate and the base plate, the abutment portion is located above the pressure plate. When the auxiliary connector is removed, the pressure plate abuts against the lower part of the abutment portion.

[0019] Furthermore, one end of the guide post that passes through the pressure plate is provided with a flange, and the pressure plate is provided with a step that can abut against the flange. The other end of the guide post is connected and fixed to the base plate.

[0020] Furthermore, the support base is provided with a positioning pin on one side of the slot, and the positioning pin passes through the slot and abuts against the support plate.

[0021] Furthermore, the end of the positioning pin that abuts against the support plate is spherical.

[0022] A belt-type conveyor includes a frame, a guide belt, a driven roller, and the aforementioned conveyor roller mounting structure. The upright plates are respectively fixed on opposite sides of the frame. The driven roller is rotatably mounted on the frame and arranged parallel to the conveyor roller. The guide belt is sleeved on the conveyor roller and the driven roller.

[0023] The beneficial effects achieved by this utility model are as follows: By setting a support base on one of the upright plates and a support plate on the drive assembly, with the support plate directly or indirectly abutting against the support base, the support base can provide support to the drive assembly through the support plate, thus preventing the conveyor roller from bending due to the weight of the drive assembly. Furthermore, by setting an elastic support component on the support base, a flexible connection is formed between the support plate and the support base. The force exerted by the elastic support component on the support plate can be set to be equal to the weight of the drive assembly itself, making the force exerted by the support base on the drive assembly precisely adjustable. This avoids the problems associated with direct connections that could affect the drive assembly. The installation complexity of the required force is reduced by using a flexible connection. During the installation and assembly process, it is only necessary to set the force generated by the elastic support component on the support plate to reach the target parameters. After assembly, the elastic support component and the support plate abut against each other to form a complete anti-bending system, which can easily and quickly support the drive component. In addition, a slot is provided on the support base for the support plate to be inserted. The cooperation between the slot and the support plate can prevent the inertial force of the conveyor roller from acting in the opposite direction to the drive component when the drive component drives the conveyor roller to rotate, thus playing a circumferential restraining role. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the conveyor roller mounting structure provided by this utility model;

[0025] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0026] Figure 3 This is a cross-sectional view of the elastic support component of the conveyor roller mounting structure provided in this embodiment of the utility model;

[0027] Figure 4 yes Figure 3 Enlarged view of point B in the middle;

[0028] Figure 5 yes Figure 3 The enlarged view at point B shows the state of the elastic support component after the auxiliary connector has been removed;

[0029] Figure 6 This is a cross-sectional view of the conveyor roller mounting structure provided in this embodiment of the present invention located at the positioning pin;

[0030] Figure 7 yes Figure 6 Enlarged view of point C in the middle;

[0031] Figure 8 This is a structural diagram of the belt conveyor provided in an embodiment of the present invention.

[0032] Explanation of icon numbers:

[0033] 1. Vertical plate; 2. Conveyor roller; 3. Drive assembly; 4. Support base; 41. Slot; 5. Support plate; 51. Abutment part; 6. Elastic support assembly; 61. Base plate; 62. Pressure plate; 621. Step; 63. Guide column; 631. Flange; 64. Elastic element; 65. Auxiliary connecting part; 7. Positioning pin; 71. Spherical; 10. Conveyor roller mounting structure; 20. Frame; 30. Guide belt. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0035] See Figures 1-2 This utility model provides a conveyor roller mounting structure for a belt conveyor device, including a vertical plate 1, a conveyor roller 2, a drive assembly 3, a support base 4, a support plate 5, and an elastic support assembly 6. The end of the conveyor roller 2 is rotatably mounted on two vertical plates 1. The drive end of the drive assembly 3 is connected to the end of the conveyor roller 2 that passes through the vertical plate 1 and drives the conveyor roller 2 to rotate. The drive assembly 3 and the conveyor roller 2 are located on opposite sides of the vertical plate 1. The support base 4 is located below the drive assembly 3 and fixed to the vertical plate 1. The support base 4 has a slot 41. One end of the support plate 5 is connected to the drive assembly 3, and the other end is inserted into the slot 41. The support plate 5 can float up and down within the slot 41, forming a movable connection between the support plate 5 and the support base. The elastic support assembly 6 is located on the support base 4 and provides an upward force to the support plate 5. The bending moment generated by the force provided by the elastic support assembly 6 on the support plate 5 is equal to the bending moment generated by the weight of the drive assembly 3 itself.

[0036] By setting a support base 4 on the vertical plate 1 installed at one end of the conveyor roller 2, and setting a support plate 5 on the drive assembly 3, the support plate 5 and the support base 4 directly or indirectly abut against each other. That is, the weight of the drive assembly 3 can be transferred to the vertical plate 1 through the support plate 5 and the support base 4, so that the support base 4 can provide support for the drive assembly 3 through the support plate 5, thereby preventing the conveyor roller 2 from bending due to the weight of the drive assembly 3. Furthermore, an elastic support component 6 is set on the support base 4, so that a flexible connection is formed between the support plate 5 and the support base 4. The bending moment generated by the force exerted by the elastic support component 6 on the support plate 5 is equal to the bending moment generated by the weight of the drive assembly 3 itself, so that the force exerted by the support base 4 on the drive assembly 3 is precisely adjustable, avoiding the need for direct connection. To address the complex installation issue when the force required by the support 4 to counteract the bending moment caused by the weight of the drive component 3, a flexible connection is adopted. During installation and assembly, it is only necessary to ensure that the bending moment generated by the force exerted by the elastic support component 6 on the support plate 5 reaches the target parameter. After assembly, the elastic support component 6 and the support plate 5 abut against each other to form a complete anti-bending system, thus providing simple and quick anti-bending support for the drive component 3. In addition, a slot 41 is provided on the support 4 for the support plate 5 to be inserted. The cooperation between the slot 41 and the support plate 5 prevents circumferential sway caused by the inertial force of the conveyor roller 2 acting in the opposite direction on the drive component 3 when the drive component 3 drives the conveyor roller 2 to rotate, thereby limiting the circumferential sway.

[0037] The conveyor roller mounting structure provided by this utility model ensures that the conveyor roller 2 can rotate smoothly and at a uniform speed by setting anti-bending in the axial direction and anti-sway in the circumferential direction, which improves the accuracy of the printing position and pattern shape, avoids the disruption of the stability of the guide belt driven by the conveyor roller 2, and also avoids accelerated wear of equipment parts, thereby extending the service life.

[0038] It should be noted that the number of upright plates 1 can be one or two. When there is one upright plate 1, the conveyor roller 2 is installed with one end connected to the upright plate 1 and the other end suspended. The drive assembly 3 is fixed to one end of the conveyor roller 2. When there are two upright plates 1, both ends of the conveyor roller 2 can be rotatably connected to the two upright plates 1 respectively, and the drive assembly 4 is connected to one end of the conveyor roller 2. In this embodiment, two upright plates are used.

[0039] Specifically, the drive assembly 3 includes a drive component and a reduction component. The force of the elastic support component 6 is equal to the weight of the drive assembly 3 itself. This force is calculated based on the weight of the drive component, the weight of the reduction component, the lever arm between the reduction component and the support plate 5, and the lever arm between the drive component and the support plate 5. The resulting force is the force required by the elastic support component 6. This force ensures that the conveyor roller 2 maintains stable axial stiffness when acting on the drive assembly 3 during the operation of the conveyor roller 2.

[0040] See Figure 2 Furthermore, the support plate 5 is sleeved on the outside of the drive assembly 3, so that the overall weight of the drive assembly 3 can be evenly transferred to the elastic support assembly 6 through the support plate 5. The side of the slot 41 is provided with an opening, and the support plate 5 is inserted into the slot 41 through the opening, so that after the support plate 5 is installed, it can cooperate with the slot 41 under the premise that the height position of the conveying roller 2 is restricted.

[0041] During installation, first insert two vertical plates 1 through both ends of the conveyor roller 2, and fix one end of the support component onto the drive assembly 3. The drive end of the drive assembly 3 is installed with one end of the conveyor roller 2 through a coupling. At the same time, the support plate 5 is moved from the opening of the slot 41 into the slot 41.

[0042] See Figure 2 Furthermore, the side of the support plate 5 is provided with an abutment part 51, and the elastic support assembly 6 includes a base plate 61, a pressure plate 62, a guide post 63, and an elastic element 64. The base plate 61 is fixed to the support base 4 so that the entire elastic support assembly 6 can be fixed on the support base 4. The pressure plate 62 is movably disposed above the base plate 61 and can abut against the lower part of the abutment 51 so that the pressure plate 62 can move up and down during the installation process to ensure smooth installation with the abutment 51 and avoid interference with the abutment 51, thereby affecting the installation of the support plate 5. The guide post 63 is disposed on the base plate 61 and passes through the pressure plate 62. The pressure plate 62 can move up and down along the guide post 63. The elastic element 64 is sleeved on the guide post 63 and located between the base plate 61 and the pressure plate 62. The guide post 63 provides guidance for the movement of the pressure plate 62 and can also ensure that the elastic element 64 can be compressed / expanded in the axial direction. The elastic element 64 provides an upward force to the abutment 51 through the pressure plate 62.

[0043] See Figures 3-5Furthermore, the elastic support assembly 6 also includes an auxiliary connector 65 detachably connected between the pressure plate 62 and the base plate 61. When the auxiliary connector 65 is connected between the pressure plate 62 and the base plate 61, the abutment portion 51 is located above the pressure plate 62. That is, the auxiliary connector 65 can shorten the distance between the base plate 61 and the pressure plate 62. The pressure plate 62 compresses the elastic member 64 and moves away from the abutment portion 51 to a preset position. When the auxiliary connector 65 is removed, the pressure plate 62 abuts against the lower part of the abutment portion 51. That is, the pressure plate 62 returns to its initial position under the action of the elastic member 64. In other words, by setting the auxiliary connector 65, the elastic support assembly 6 is installed on the support base 4 in the form of a component during installation. This causes interference between the pressure plate 62 and the abutment portion of the support plate 5 during installation. After the support plate 5 is installed, the auxiliary connector 65 is removed, allowing the pressure plate 62 to return to its initial position under the action of the elastic member 64 and abut against the lower part of the abutment portion 51, thereby achieving support for the support plate. In addition, it avoids the difficulty that when the elastic support component 6 is installed one by one in the support base 4 in order to place the pressure plate 62 under the abutment part 51, the operator needs to compress the elastic element 64 at the same time as installation to achieve the force required to withstand the gravity of the drive component 3.

[0044] In this embodiment, the weight of the drive assembly 3 required for the following belt conveyor can reach approximately 200 kg. During installation, the base plate 61, pressure plate 62, guide column 63, and elastic element 64 are first assembled. Then, the auxiliary connector 65 is connected to the pressure plate 62 and the base plate 61, so that the pressure plate 62 compresses the elastic element 64 towards the base plate 61. This step can be performed by multiple people working together and / or with mechanical assistance to compress the elastic element 64. The pressure plate 62 moves from the initial position to the preset position. Then, the elastic support assembly 6 is fixed on the support base 4. After the support plate 5 is moved into the slot 41, the abutment part 51 moves exactly above the pressure plate 62. After removing the auxiliary connector 65, the pressure plate 62 moves towards the abutment part 51 under the action of the elastic element 64 and abuts against the lower part of the abutment part 51.

[0045] See Figure 4 Specifically, the guide post 63 has a flange 631 at one end through the pressure plate 62, and the pressure plate 62 has a step 621 that can abut against the flange 631. The other end of the guide post 63 is connected and fixed to the base plate 61. The cooperation between the flange 631 and the step 621 ensures that the pressure plate 62 will not detach from the base plate 61 under the action of the elastic element 64.

[0046] See Figures 6-7Furthermore, the support base 4 is provided with a positioning pin 7 on one side of the slot 41. The positioning pin 7 passes through the slot 41 and abuts against the support plate 5. By setting the positioning pin 7 to abut against the support plate 5, the support plate 5 can be precisely limited in the circumferential direction of the conveying roller 2, thereby reducing the fit between the support plate 5 and the slot 41, that is, it is not necessary to make the slot 41 and the support completely fit together, so as to reduce the processing difficulty.

[0047] See Figure 7 Furthermore, the end of the positioning pin 7 that abuts against the support plate 5 is spherical 71. By setting the end of the positioning pin 7 to be spherical 71, when the support plate 5 is subjected to the rotation of the conveying roller 2 and has a tendency to move in the circumferential direction of the conveying roller 2, the spherical 71 can reduce the contact area between the positioning pin 7 and the support plate 5, thereby making the force on the positioning pin 7 more concentrated and the limiting effect on the support plate 5 better.

[0048] See Figure 8 This utility model embodiment also provides a belt-type conveyor device, including a frame 20, a guide belt 30, a driven roller (not shown in the figure), and the above-mentioned conveyor roller 2 mounting structure. The upright plates 1 are respectively fixed on opposite sides of the frame 20. The driven roller is rotatably mounted on the frame 20 and arranged parallel to the conveyor roller 2. The guide belt 30 is sleeved on the conveyor roller 2 and the driven roller.

[0049] The belt conveyor device provided by this utility model ensures that the conveyor roller 2 can rotate smoothly and at a uniform speed by setting anti-bending in the axial direction and anti-sway in the circumferential direction. This improves the accuracy of the printing position and pattern shape, avoids the disruption of the stability of the guide belt driven by the conveyor roller 2, and also avoids accelerated wear of equipment components, thereby extending the service life.

[0050] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A conveyor roller mounting structure, applied to a belt conveyor device, characterized in that, include: Elevating board; The conveying roller has an end that is rotatably mounted on the vertical plate; A drive assembly, the drive end of which is connected to one end of the conveying roller that passes through the vertical plate and drives the conveying roller to rotate, the drive assembly and the conveying roller are respectively disposed on opposite sides of the vertical plate; A support base is located below the drive assembly and fixed to the upright plate, and the support base is provided with a slot; A support plate, one end of which is connected to the drive assembly, and the other end of which is inserted into the slot, the support plate being able to float up and down within the slot; An elastic support assembly is disposed on the support base and provides an upward force to the support plate, wherein the bending moment generated by the force provided by the elastic support assembly to the support plate is equal to the bending moment generated by the weight of the drive assembly itself.

2. The conveyor roller mounting structure as described in claim 1, characterized in that, One end of the support plate is sleeved on the outside of the drive assembly, and the side of the slot has an opening through which the support plate is inserted into the slot.

3. The conveyor roller mounting structure as described in claim 1 or 2, characterized in that, The side of the support plate is provided with an abutment portion, and the elastic support assembly includes: The base plate is fixed to the support base; The pressure plate is movably disposed above the base plate and can abut against the lower part of the abutment portion; A guide post is provided on the base plate and passes through the pressure plate, and the pressure plate can move up and down along the guide post; An elastic element is sleeved on the guide post and located between the base plate and the pressure plate. The elastic element provides an upward force to the abutment portion through the pressure plate.

4. The conveyor roller mounting structure as described in claim 3, characterized in that, The elastic support assembly also includes an auxiliary connector detachably connected between the pressure plate and the base plate. When the auxiliary connector is connected between the pressure plate and the base plate, the abutment portion is located above the pressure plate. When the auxiliary connector is removed, the pressure plate abuts against the lower part of the abutment portion.

5. The conveyor roller mounting structure as described in claim 3, characterized in that, The guide post has a flange at one end that passes through the pressure plate, and the pressure plate has a step that can abut against the flange. The other end of the guide post is connected and fixed to the base plate.

6. The conveyor roller mounting structure as described in claim 1, characterized in that, The support base is provided with a positioning pin on one side of the slot, and the positioning pin passes through the slot and abuts against the support plate.

7. The conveyor roller mounting structure as described in claim 6, characterized in that, The end of the positioning pin that abuts against the support plate is spherical.

8. A belt conveyor device, characterized in that, The device includes a frame, a guide belt, a driven roller, and a conveyor roller mounting structure as described in any one of claims 1-7. The upright plates are respectively fixed on opposite sides of the frame. The driven roller is rotatably mounted on the frame and arranged parallel to the conveyor roller. The guide belt is sleeved on the conveyor roller and the driven roller.

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