Guide rail with tension display mechanism

Abstract

The utility model discloses a guide rail with a tension display mechanism, which comprises a sliding guide rail head and a guide rail body, the guide rail body is connected with a spring sleeve component, the spring sleeve component comprises a telescopic spring sleeve and a spring, the telescopic spring sleeve is connected onto the guide rail body, the spring is positioned outside the spring sleeve, flange edges for limiting the spring are arranged at two ends of the spring sleeve, and the spring sleeve is connected with the guide rail body. One end of the telescopic piece is inserted into the spring sleeve and abuts against the spring sleeve assembly, the end, inserted into the spring sleeve, of the telescopic piece is fixed relative to the spring sleeve, a connecting piece is arranged at the end, located at the sliding guide rail head, of the spring sleeve, and the connecting piece is connected with a displacement sensor. According to the utility model, electric signal change generated inside during linear displacement is converted into a pressure digital signal through the displacement sensor, and data can be directly and remotely read without being influenced by the field environment.

Description

Technical Field

[0001] The utility model relates to the field of shaping machines, in particular to a shaping guide rail with a tension display mechanism. Background Art

[0002] At present, the main guide rails for setting machines in the printing and dyeing industry on the market include cast iron (guide rails with high temperature chain oil) guide rails such as Sunstar, Ligen, Lihe, and Meiguang. The chain tensioning device of the original Sunstar cast iron oiling guide rails all use a spring tensioning structure. Since the chain in the guide rail has been running at high temperature and high speed for a long time in the drying room of the setting machine, the chain is easy to stretch after being heated and pulled, and this stretching is not easy to be noticed. Once the chain stretches to a certain extent, there will be squeezing between the chains in the chain running groove at the chain exit of the main transmission sprocket at the tail of the machine (outside of the tail guide rail), and then the chain will squeeze through the chain running groove at that location;

[0003] During use in printing and dyeing factories, the service life of the chain is often shortened due to excessive chain tension. The current market measurement of spring compression force (i.e. chain tension) is to use a movable scale on the spring to compress the scale on a fixed sign with a preset pressure value and corresponding scale lines. Since the scale needs to be read manually, and the on-site environment scale is easily affected by oil and debris, it is difficult to read, resulting in a large deviation between the actual tension of the chain in the guide rail and the read pressure value. The tension is generally judged by the manufacturer based on the feel of the hand when turning the wrench. This will result in a large deviation due to factors such as the length of the person and the force arm. Most of the time, the tension is too large, because this tensioning can extend the time a lot and reduce the number of tensioning times, but it will shorten the service life of the chain.

[0004] During the use of printing and dyeing factories, the fabric often has weft skew problems during shaping due to the different chain tensions in the guide rails on both sides of the shaping machine, which affects the shaping quality of the fabric. Utility Model Content

[0005] The utility model aims to provide a guide rail with a tension display mechanism.

[0006] The innovation of the utility model is that the linear displacement is converted into a pressure digital signal by means of a displacement sensor, and the data can be directly read remotely without being affected by the on-site environment.

[0007] In order to achieve the above utility model purpose, the technical solution of the utility model is:

[0008] A tension display type guide rail comprises a sliding guide rail head and a guide rail body, a spring sleeve assembly is connected to the guide rail body, the spring sleeve assembly comprises a retractable spring sleeve connected to the guide rail body and a spring located outside the spring sleeve, flange edges of limit springs are provided at both ends of the spring sleeve, a retractable piece is provided on the guide rail body, one end of the retractable piece is inserted into the spring sleeve and presses against the spring sleeve assembly, and the end of the retractable piece inserted into the spring sleeve is fixed relative to the spring sleeve, a connecting piece is provided at one end of the spring sleeve located at the sliding guide rail head, and the connecting piece is connected to a displacement sensor.

[0009] Furthermore, the telescopic member is an oil cylinder, and the piston rod of the oil cylinder is inserted into the spring sleeve. The oil cylinder is used as the pressure source for tensioning the chain, so the chain tension is almost constant during the operation of the chain, and there is no need to manually adjust the tension regularly according to the original spring screw rod structure.

[0010] Furthermore, the piston rod and the spring sleeve are plugged in. This structure can avoid the service life of the cylinder being affected by the rigid fixed connection, and can also reduce the occupied space of the mechanism, and the connection is more stable.

[0011] Furthermore, a heat insulation board is provided at the connection between the oil cylinder and the sliding guide rail head to prevent the temperature at the sliding guide rail head from affecting the pressure of the oil cylinder.

[0012] Furthermore, the displacement sensor is arranged overhead to reduce the influence of temperature on the temperature sensor.

[0013] Furthermore, the displacement sensor is covered with a cover to protect the displacement sensor.

[0014] Furthermore, the spring sleeve is composed of two sections, one section is inserted into the other section.

[0015] Furthermore, an inserting tube for inserting the spring sleeve is provided on the edge of the flange, making the manufacturing easier.

[0016] The beneficial effects of the utility model are:

[0017] 1. In the utility model, the linear displacement drives the displacement sensor to make a corresponding linear displacement. At this time, the electrical signal of the displacement sensor will produce a corresponding linear change when it moves. The electrical signal will be processed by the digital display regulator to become a different pressure digital signal. The data can be read directly remotely without being affected by the on-site environment.

[0018] 2. The utility model adopts an oil cylinder as the pressure source for tensioning the chain. Therefore, the chain tension is almost constant during the operation of the chain. There is no need to manually adjust the tension regularly according to the tension conditions like the original spring screw structure. This can greatly reduce the frequency of regular chain tensioning and inspection by mechanical maintenance workers, thereby reducing the labor intensity of operators.

[0019] 3. The tensioning force of the chain in the guide rail of the utility model is relatively constant, which can increase the service life of the chain and reduce equipment accidents caused by chain relaxation during operation.

[0020] 4. The combination of the oil cylinder and the spring in the utility model can utilize the continuous tension of the oil cylinder and the unique elasticity of the spring to reduce or absorb the vibration generated by the chain running in the guide rail, thereby improving the stability and reliability of the chain transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present utility model will be described clearly and completely below in conjunction with the accompanying drawings.

[0023] Embodiment 1: A tension display type guide rail includes a sliding guide rail head 1 and a guide rail body 2, a spring sleeve assembly 3 is connected to the guide rail body 2, the spring sleeve assembly 3 includes a retractable spring sleeve 4 connected to the guide rail body 2 and a spring 5 located outside the spring sleeve, the spring sleeve 4 is composed of two sections, one section is inserted into the other section, and flange edges 4.1 of the limit spring 5 are provided at both ends of the spring sleeve 4, and a plug 4.11 for inserting the spring sleeve 4 is provided on the flange edge 4.1. A telescopic member 6 is provided on the guide rail body 2, one end of which is inserted into the spring sleeve 4 and presses against the spring sleeve assembly 3, and the end of the telescopic member 6 inserted into the spring sleeve 4 is fixed relative to the spring sleeve 4, the telescopic member 6 is an oil cylinder, the piston rod of the oil cylinder is inserted into the spring sleeve 4, and the piston rod and the spring sleeve 4 are plugged. A heat insulation board 9 is provided at the connection between the oil cylinder and the sliding guide rail head 1.

[0024] A connecting piece 7 is provided at one end of the spring sleeve 4 located at the sliding guide rail head 1. The connecting piece 7 is connected to a displacement sensor 8. The displacement sensor 8 is arranged overhead, and a cover 10 is provided outside the displacement sensor.

[0025] Working principle: The telescopic part 6, i.e., the thrust of the oil cylinder, is set according to the tensioning force requirement. When the telescopic part is pushed out by pressure, the sliding guide head 1 will move in the direction away from the guide rail body 2 under the pushing action, and the closed chain pre-installed in the guide rail will be gradually tensioned by the force; when the sliding guide head 1 moves to the point where the chain tensioning force is greater than the deformation force of the spring 5, the sliding guide head 1 stops moving, the telescopic part 6 pushes the spring sleeve assembly 3 to compress, and the connecting piece 7 moves in the direction away from the sliding guide head 1. At this time, the displacement sensor 8 will convert the change of the internal electrical signal during linear displacement into a digital pressure signal according to Hu Ke's law, thereby achieving the purpose of converting the spring pressure into a digital signal.

[0026] The described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Claims

1. A tension display type guide rail, comprising a sliding guide rail head and a guide rail body, the guide rail body is connected to a spring sleeve assembly, the spring sleeve assembly comprises a retractable spring sleeve connected to the guide rail body and a spring located outside the spring sleeve, the two ends of the spring sleeve are provided with flange edges of limit springs, characterized in that: The guide rail body is provided with a telescopic part with one end inserted into the spring sleeve and pressing the spring sleeve assembly, and the end of the telescopic part inserted into the spring sleeve is fixed relative to the spring sleeve. The spring sleeve is located at one end of the sliding guide rail head and is provided with a connecting piece, which is connected to the displacement sensor.

2. The guide rail with tension indicator according to claim 1, characterized in that: The telescopic member is an oil cylinder, and the piston rod of the oil cylinder is inserted into a spring sleeve.

3. The guide rail with tension indicator according to claim 2, characterized in that: The piston rod and the spring sleeve are plugged into each other.

4. The guide rail with tension indicator according to claim 2, characterized in that: A heat insulation board is arranged at the connection between the oil cylinder and the sliding guide rail head.

5. The guide rail with tension indicator according to claim 1, characterized in that: The displacement sensor is arranged overhead.

6. The guide rail with tension indicator according to claim 1, characterized in that: The displacement sensor is outer-coated with a cover shell.

7. The guide rail with tension indicator according to claim 1, characterized in that: The spring sleeve is composed of two sections, one section being inserted into the other section.

8. The guide rail with tension indicator according to claim 1, characterized in that: The flange edge is provided with an inserting tube for inserting the spring sleeve.

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