Synchronous belt tension adjusting mechanism for wall printing machine

Abstract

The utility model relates to the technical field of printing machine, concretely relates to a wall printing machine is with synchronous belt tension adjusting mechanism, including backplate and adjusting assembly, adjusting assembly includes bearing frame, guide piece, pivot, hand wheel, hand wheel limiting piece and compression piece, will hand wheel be taken off from pivot, then will synchronous belt assemble on pivot, then will hand wheel be installed back, manual operation hand wheel rotation, make the superfluous synchronous belt winding on pivot, guide piece provides the guiding effect to synchronous belt, limit the direction of synchronous belt, compression piece is used for to synchronous belt carries out compression fixedly, and prevents synchronous belt and withdraws, compared with traditional adjusting mechanism, the length of retraction can increase greatly, expands the applicable floor height of synchronous belt, both facilitates user use, also avoided synchronous belt waste.

Description

Technical Field

[0001] This utility model relates to the field of printing press technology, and in particular to a synchronous belt tension adjustment mechanism for a wall printing press. Background Technology

[0002] When printing patterns on walls, the process is mostly done manually by brushing or by spraying with a stencil. The printing methods are limited, so a wall printing machine is used. A wall printing machine is a mechanical device specifically designed for efficient and precise printing on large flat surfaces such as walls. Wall printing machines are usually used in conjunction with a tension adjustment mechanism.

[0003] Currently, the tension adjustment mechanism on existing wall printing machines has a limited adjustable range. It fixes the position of the slider by tightening the slide rail with locking screws. The smaller the distance between the two sliders, the more the synchronous belt is retracted and the tighter it becomes. Due to the limited length of the slide rail, the actual length of the synchronous belt that can be retracted and extended is limited. Utility Model Content

[0004] The purpose of this utility model is to provide a timing belt tension adjustment mechanism for a wall printing machine. By rotating the handwheel, the excess part of the timing belt is wound around the shaft of the handwheel. Compared with the traditional adjustment mechanism, the length that can be extended and retracted is greatly increased, which expands the applicable floor height of the timing belt. This not only makes it convenient for users to use, but also avoids the waste of timing belt.

[0005] To achieve the above objectives, this utility model provides a timing belt tension adjustment mechanism for a wall printing machine, including a back plate and an adjustment assembly.

[0006] The adjustment assembly includes a load-bearing frame, a guide, a rotating shaft, a handwheel, a handwheel limiter, a clamping component, and a timing belt;

[0007] The load-bearing frame is fixedly connected to the back plate and located on one side of the back plate; the guide is located on one side of the load-bearing frame; the rotating shaft is rotatably connected to the back plate and located on one side of the back plate; the handwheel is detachably connected to the rotating shaft and located on one side of the rotating shaft; the handwheel limiting member is located on one side of the rotating shaft; the clamping member is located on one side of the load-bearing frame; and the synchronous belt is located on one side of the rotating shaft, the clamping member, and the guide.

[0008] The guide component includes a guide post and a guide wheel. The guide post is fixedly connected to the back plate and is located on one side of the back plate. The guide wheel is rotatably connected to the guide post and is located on one side of the guide post.

[0009] The handwheel limiting component includes a ratchet, a pawl, a limiting post, a spring post, and a limiting spring. The ratchet is fixedly connected to the rotating shaft and located on one side of the rotating shaft; the pawl is rotatably connected to the back plate and located on one side of the back plate; the limiting post is fixedly connected to the pawl and located on one side of the pawl; the spring post is fixedly connected to the back plate and located on one side of the back plate; and the limiting spring is fixedly connected to the spring post and located on one side of the spring post.

[0010] The clamping component includes a toothed block, a pressing shaft, and a pressing wrench. The toothed block is fixedly connected to the load-bearing frame and located on one side of the load-bearing frame. The pressing shaft is fixedly connected to the load-bearing frame and located on one side of the load-bearing frame. The pressing wrench is rotatably connected to the pressing shaft and located on one side of the pressing shaft.

[0011] The handwheel has multiple anti-slip protrusions, which are located on one side of the handwheel.

[0012] This utility model discloses a timing belt tension adjustment mechanism for a wall printing machine. When adjusting the timing belt tension, the handwheel is removed from the rotating shaft, the timing belt is then mounted on the rotating shaft, and the handwheel is reinstalled. The handwheel is then manually rotated, causing excess timing belt to wind around the rotating shaft. The guide member provides guidance for the timing belt and restricts its direction. The clamping member is used to clamp and fix the timing belt and prevent it from slipping outwards. Compared to traditional adjustment mechanisms, the retractable length is greatly increased, expanding the applicable floor height of the timing belt. This not only facilitates user operation but also avoids timing belt waste. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a front view of the entire utility model.

[0016] Figure 3 This is a structural schematic diagram of the entire utility model from another angle.

[0017] 101-Backplate, 102-Bearing frame, 103-Guide component, 104-Spindle, 105-Handwheel, 106-Handwheel limiter, 107-Clamping component, 108-Guide post, 109-Guide wheel, 110-Ratchet, 111-Pawl, 112-Limit post, 113-Spring post, 114-Limit spring, 115-Tooth block, 116-Pressure spindle, 117-Pressure wrench, 118-Anti-slip protrusion, 119-Synchronous belt. Detailed Implementation

[0018] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0019] Please see Figures 1-3 ,in, Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 2 This is a front view of the entire utility model. Figure 3 This is a structural schematic diagram of the entire utility model from another angle.

[0020] This utility model discloses a timing belt tension adjustment mechanism for a wall printing machine, comprising a back plate 101 and an adjustment assembly. The adjustment assembly includes a load-bearing frame 102, a guide 103, a rotating shaft 104, a handwheel 105, a handwheel limiting component 106, a pressing component 107, and a timing belt 119. The guide 103 includes a guide post 108 and a guide wheel 109. The handwheel limiting component 106 includes a ratchet 110, a pawl 111, a limiting post 112, a spring post 113, and a limiting spring 114. The pressing component 107 includes a toothed block 115, a pressing rotating shaft 116, and a pressing wrench 117. The handwheel 105 has multiple anti-slip protrusions 118. By rotating the handwheel, the excess portion of the timing belt is wound around the rotating shaft of the handwheel. Compared with traditional adjustment mechanisms, the length that can be extended and retracted is greatly increased, expanding the applicable layer height of the timing belt, which is convenient for users and avoids the waste of timing belt.

[0021] In this specific embodiment, the back plate 101 works in conjunction with the adjustment assembly to adjust the tension of the timing belt 119.

[0022] The load-bearing frame 102 is fixedly connected to the back plate 101 and located on one side of the back plate 101; the guide member 103 is disposed on one side of the load-bearing frame 102; the rotating shaft 104 is rotatably connected to the back plate 101 and located on one side of the back plate 101; the handwheel 105 is detachably connected to the rotating shaft 104 and located on one side of the rotating shaft 104; the handwheel limiting member 106 is disposed on one side of the rotating shaft 104; the clamping member 107 is disposed on one side of the load-bearing frame 102; and the synchronous belt 119 is respectively disposed on one side of the rotating shaft 104, the clamping member 107, and the guide member 103, thereby controlling the handwheel 105 from the... Remove the timing belt 119 from the rotating shaft 104, then assemble it onto the rotating shaft 104. Then reinstall the handwheel 105 and manually rotate it to allow excess timing belt 119 to wind around the rotating shaft 104. The guide member 103 provides guidance for the timing belt 119 and restricts its direction. The clamping member 107 is used to clamp and fix the timing belt 119 and prevent it from slipping outward. Compared with traditional adjustment mechanisms, the retractable length is greatly increased, expanding the applicable layer height of the timing belt 119. This not only facilitates user use but also avoids wasting the timing belt 119.

[0023] Secondly, the guide post 108 is fixedly connected to the back plate 101 and is located on one side of the back plate 101; the guide wheel 109 is rotatably connected to the guide post 108 and is located on one side of the guide post 108. The guide post 108 is used to support the rotation of the guide wheel 109, and the guide wheel 109 is used to restrict the direction of the synchronous belt 119.

[0024] Furthermore, the ratchet 110 is fixedly connected to the rotating shaft 104 and located on one side of the rotating shaft 104; the pawl 111 is rotatably connected to the back plate 101 and located on one side of the back plate 101; the limiting post 112 is fixedly connected to the pawl 111 and located on one side of the pawl 111; the spring post 113 is fixedly connected to the back plate 101 and located on one side of the back plate 101; the limiting spring 114 is fixedly connected to the spring post 113 and located on one side of the spring post 113. When locking the handwheel 105, the limiting spring 114 is operated to engage the limiting post 112, causing the pawl 111 to operate and hook the pawl head onto the spike of the ratchet 110, thereby restricting the rotation of the handwheel 105.

[0025] Additionally, the toothed block 115 is fixedly connected to the load-bearing frame 102 and located on one side of the load-bearing frame 102; the pressing shaft 116 is fixedly connected to the load-bearing frame 102 and located on one side of the load-bearing frame 102; the pressing wrench 117 is rotatably connected to the pressing shaft 116 and located on one side of the pressing shaft 116. The toothed block 115 is used to cooperate with the pressing wrench 117 to restrict the timing belt 119. The pressing wrench 117 has a matching mechanism below it. The toothed block 115 is engaged, and the end of the timing belt 119 is pressed between the pressing wrench 117 and the toothed block 115. The toothed block 115 contacts the toothed surface of the timing belt 119 to reduce the risk of slippage. The toothed block 115 restricts the rotation range of the pressing wrench 117. The direction of rotation of the pressing wrench 117 driven by the outwardly withdrawn timing belt 119 is opposite to the direction of rotation of the pressing handle as it is removed from the timing belt 119, thus having a self-locking effect.

[0026] Furthermore, the plurality of anti-slip protrusions 118 are respectively located on one side of the handwheel 105, and the anti-slip protrusions 118 are used to increase the friction when operating the handwheel 105.

[0027] When using this utility model, remove the handwheel 105 from the rotating shaft 104, then assemble the synchronous belt 119 onto the rotating shaft 104, then reinstall the handwheel 105, and manually rotate the handwheel 105 so that the excess synchronous belt 119 is wound around the rotating shaft 104. The guide post 108 supports the rotation of the guide wheel 109, and the guide wheel 109 restricts the direction of the synchronous belt 119. The toothed block 115 cooperates with the pressing wrench 117 to restrict the synchronous belt 119. The pressing wrench 117 has a cooperating toothed block 115 below it. The end of the timing belt 119 is pressed between the pressing wrench 117 and the toothed block 115. The toothed block 115 contacts the toothed surface of the timing belt 119, reducing the risk of slippage. The toothed block 115 restricts the rotation range of the pressing wrench 117. The direction of rotation of the pressing wrench 117 driven by the outwardly retracted timing belt 119 is opposite to the direction of rotation of the pressing handle as it is removed from the timing belt 119, which has a self-locking effect. Compared with traditional adjustment mechanisms, the retractable length is greatly increased, expanding the applicable layer height of the timing belt 119. This not only facilitates user use but also avoids waste of the timing belt 119.

[0028] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A timing belt tension adjustment mechanism for a wall printing machine, comprising a back plate, characterized in that, It also includes adjustment components, The adjustment assembly includes a load-bearing frame, a guide, a rotating shaft, a handwheel, a handwheel limiter, a clamping component, and a timing belt; The load-bearing frame is fixedly connected to the back plate and located on one side of the back plate; the guide is located on one side of the load-bearing frame; the rotating shaft is rotatably connected to the back plate and located on one side of the back plate; the handwheel is detachably connected to the rotating shaft and located on one side of the rotating shaft; the handwheel limiting member is located on one side of the rotating shaft; the clamping member is located on one side of the load-bearing frame; and the synchronous belt is located on one side of the rotating shaft, the clamping member, and the guide.

2. The synchronous belt tension adjustment mechanism for a wall printing machine as described in claim 1, characterized in that, The guide component includes a guide post and a guide wheel. The guide post is fixedly connected to the back plate and is located on one side of the back plate. The guide wheel is rotatably connected to the guide post and is located on one side of the guide post.

3. The synchronous belt tension adjustment mechanism for a wall printing machine as described in claim 2, characterized in that, The handwheel limiting component includes a ratchet, a pawl, a limiting post, a spring post, and a limiting spring. The ratchet is fixedly connected to the rotating shaft and located on one side of the rotating shaft; the pawl is rotatably connected to the back plate and located on one side of the back plate; the limiting post is fixedly connected to the pawl and located on one side of the pawl; the spring post is fixedly connected to the back plate and located on one side of the back plate; and the limiting spring is fixedly connected to the spring post and located on one side of the spring post.

4. The synchronous belt tension adjustment mechanism for a wall printing machine as described in claim 3, characterized in that, The clamping component includes a toothed block, a pressing shaft, and a pressing wrench. The toothed block is fixedly connected to the load-bearing frame and is located on one side of the load-bearing frame. The pressing shaft is fixedly connected to the load-bearing frame and is located on one side of the load-bearing frame. The pressing wrench is rotatably connected to the pressing shaft and is located on one side of the pressing shaft.

5. The synchronous belt tension adjustment mechanism for a wall printing machine as described in claim 4, characterized in that, The handwheel has multiple anti-slip protrusions, which are located on one side of the handwheel.

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