Quick tensioning mechanism for vacuum conveying belt

Abstract

The utility model provides a rapid tensioning mechanism for a vacuum conveying belt, which comprises a driving traction wheel, a tensioning wheel, a tensioning wheel and a tensioning wheel, the driving traction wheel comprises a driving motor and a speed reducer, a driving shaft of the driving motor is mounted on the speed reducer, and the speed reducer is connected with the driving traction wheel; the driven synchronizing wheel comprises a tensioning mechanism, an operating handle, a pre-tensioning screw, a rotating torsion spring and an eccentric wheel, the operating handle is installed on one side of the tensioning mechanism, the operating handle is installed at the tail end of the tensioning mechanism, and the pre-tensioning screw is further installed on the tensioning mechanism. Loss of spare parts can be saved, the vacuum conveying belt serves as an important functional part on the packaging machine and needs to be replaced and cleaned after being used for a long time, and the vacuum conveying belt needs to be dismantled for cleaning and protection when equipment is disinfected and maintained. If the preset tensile force of the vacuum conveying belt changes, the friction force between the vacuum conveying belt and a conveyed object in the working process is not uniform, the friction force on the left side and the right side is not consistent, and therefore failure and even damage are caused.

Description

Technical Field

[0001] The utility model belongs to the technical field of conveyor belts, in particular to a vacuum conveyor belt rapid tensioning mechanism. Background Art

[0002] The vacuum conveyor belt system of the equipment requires regular maintenance, cleaning and replacement. Since the vacuum conveyor belt adopts vacuum adsorption to the conveying target, the horizontality of the vacuum conveyor belt is required to be high. At the same time, the vacuum conveyor belt conveys on both sides at the same time, so the flatness and tension of the conveyor belts on both sides are very important for stable transportation. The existing technology has the following problems:

[0003] 1. The conveyor belt tensioning mechanism has a complex structure, and many mechanical connectors are connected by screws, which increases the possibility of failure during the installation process, because a clear and definite installation method and accurate installation position are required to ensure the accuracy of the installation process.

[0004] 2. When the existing vacuum conveyor belt device needs to be dismantled and replaced, the corresponding tensioning mechanism needs to be loosened using tools, which results in a long replacement process and low efficiency in actual production, which is not conducive to operations in narrow spaces.

[0005] 3. When replacing a new vacuum conveyor belt, personnel need to use tools to adjust the tension of the conveyor belt to ensure the reliability and life of the conveyor belt. However, the existing method has no accurate adjustment basis and requires the personal experience of the installation and adjustment personnel to feel the tension and flatness. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a vacuum conveyor belt rapid tensioning mechanism to solve the problems in the prior art.

[0007] A vacuum conveyor belt quick tensioning mechanism, comprising:

[0008] The active traction wheel comprises a driving motor and a reducer, wherein the driving shaft of the driving motor is mounted on the reducer, and the reducer is connected to the active traction wheel;

[0009] The passive synchronous wheel includes a tensioning mechanism, an operating handle, a pre-tensioning screw, a rotating torsion spring, and an eccentric wheel. An operating handle is installed on one side of the tensioning mechanism, and an operating handle is installed at the tail end of the tensioning mechanism. A pre-tensioning screw is also installed on the tensioning mechanism. An eccentric wheel extending to the interior of the passive synchronous wheel is installed at the center of the tensioning mechanism. The eccentric wheel and the tensioning mechanism are connected by a rotating torsion spring.

[0010] Preferably, the vacuum conveyor belt is cooperatively mounted on an active traction wheel and a passive synchronous wheel.

[0011] Preferably, the main mounting bracket is located at both sides of the active traction wheel and the passive synchronous wheel and is used for fixing and mounting the active traction wheel and the passive synchronous wheel.

[0012] Preferably, the active traction wheel and the passive synchronous wheel are both provided with gears that cooperate with the tooth grooves on the back of the vacuum conveyor belt.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model can improve the stability of equipment use and avoid deviations in the tension setting of the vacuum conveyor belt caused by human factors (experience, operating tools, environment, etc.).

[0015] 2. The utility model can improve work efficiency. Without using tools, one person can quickly replace and install the vacuum conveyor belt.

[0016] 3. The utility model can save the loss of spare parts. As an important functional component of the packaging machine, the vacuum conveyor belt needs to be replaced and cleaned after long-term use. It also needs to be removed, cleaned and protected when the equipment is disinfected and maintained. If the preset tension of the vacuum conveyor belt changes, it will cause uneven friction between the conveyed objects during operation, and the friction on the left and right sides will also be inconsistent, causing failure or even damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the utility model from top view;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the passive synchronous wheel of the utility model;

[0020] Figure 4 It is a side view structural diagram of the passive synchronous wheel of the utility model.

[0021] In the figure: 1. Active traction wheel; 2. Driving motor; 3. Passive synchronous wheel; 4. Main mounting bracket; 5. Vacuum conveyor belt; 6. Vacuum chamber; 7. Speed ​​reducer; 8. Tensioning mechanism; 9. Operating handle; 10. Pre-tensioning screw; 11. Rotating torsion spring; 12. Eccentric wheel. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0023] like Figure 1-4As shown, the utility model provides a vacuum conveyor belt rapid tensioning mechanism, which is characterized by comprising:

[0024] The active traction wheel 1 comprises a driving motor 2 and a reducer 7. The driving shaft of the driving motor 2 is mounted on the reducer 7. The reducer 7 is connected to the active traction wheel 1.

[0025] The passive synchronous wheel 3 includes a tensioning mechanism 8, an operating handle 9, a pre-tensioning screw 10, a rotating torsion spring 11, and an eccentric wheel 12. The operating handle 9 is installed on one side of the tensioning mechanism 8, and the operating handle 9 is installed at the tail end of the tensioning mechanism 8. The pre-tensioning screw 10 is also installed on the tensioning mechanism 8. An eccentric wheel 12 extending to the interior of the passive synchronous wheel 3 is installed at the center of the tensioning mechanism 8. The eccentric wheel 12 and the tensioning mechanism 8 are connected by a rotating torsion spring 11. The center distance between the passive synchronous wheel 3 and the active traction wheel 1 is adjusted by the movement of the eccentric wheel 12, thereby achieving the purpose of adjusting the tension of the vacuum conveyor belt 5.

[0026] The vacuum conveyor belt 5 is installed on the active traction wheel 1 and the passive synchronous wheel 3. The active traction wheel 1 and the passive synchronous wheel 3 are both provided with gears that cooperate with the tooth grooves on the back of the vacuum conveyor belt 5. When the active traction wheel 1 rotates, the active traction wheel 1 can drive the vacuum conveyor belt 5 to move, and the vacuum conveyor belt 5 can drive the active traction wheel 1 to move, thereby forming a mechanism for the movement of the conveyor belt.

[0027] The main mounting bracket 4 is located at both sides of the active traction wheel 1 and the passive synchronous wheel 3 and is used to fix the active traction wheel 1 and the passive synchronous wheel 3. The active traction wheel 1 and the passive synchronous wheel 3 can be mounted and formed into a whole by mounting the main mounting bracket 4.

[0028] Working principle: When the vacuum conveyor belt 5 needs to be removed, the operating handle 9 at the rear of the tensioning shaft of the torsion spring 11 is rotated without the need for tools, and the operating handle 9 drives the eccentric wheel 12 to rotate. At this time, due to the rotation of the eccentric wheel 12, the center distance between the eccentric wheel 12 and the active traction wheel 1 is reduced, so that the vacuum conveyor belt 5 can be taken out from the active traction wheel 1 and the passive synchronous wheel 3. The whole process does not require tool operation.

[0029] When installing the vacuum synchronous belt 5, the vacuum synchronous belt 5 is pre-installed on the passive synchronous wheel 3, and the eccentric wheel 12 is driven to rotate by the operating handle. Also due to the rotation of the eccentric wheel 12, the center distance between the passive wheel 3 connected to the eccentric wheel 12 and the active traction wheel 1 is reduced. At this time, the vacuum synchronous belt 5 is pushed into the active traction wheel 1. Release the operating handle 9. Driven by the central rotating torsion spring 11 of the eccentric wheel 12, the eccentric wheel 12 rotates in the opposite direction, thereby tensioning the vacuum conveyor belt 5. This process does not require tool operation.

[0030] The initial elastic force of the rotating torsion spring 11 is adjusted by the pre-tensioning screw 10 on the top of the eccentric wheel 12. After the initial installation of the mechanism is completed, the passive synchronous wheel 3 is adjusted upward or downward by adjusting the tensioning screw 1. Under the action of the vacuum synchronous belt 5 and the rotating torsion spring 11, it is only necessary to adjust the operating handle 9 to a fixed position by adjusting the pre-tensioning screw 10, indicating that the tension value has been set. There is no need for experienced operators to adjust the tension wheel. Lock the tensioning screw 10. Then, each time the vacuum conveyor belt 5 is replaced, the tensioning force of the vacuum conveyor belt 5 can be preset to the factory setting under the joint action of the eccentric wheel 12 and the rotating torsion spring 11. No adjustment is required each time.

[0031] The implementation modes of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A vacuum conveyor belt quick tensioning mechanism, characterized in that: include: The active traction wheel (1) comprises a driving motor (2) and a reducer (7), wherein the driving shaft of the driving motor (2) is mounted on the reducer (7), and the reducer (7) is connected to the active traction wheel (1); A passive synchronous wheel (3) comprises a tensioning mechanism (8), an operating handle (9), a pre-tensioning screw (10), a rotating torsion spring (11), and an eccentric wheel (12). The operating handle (9) is installed on one side of the tensioning mechanism (8), and the operating handle (9) is installed at the rear end of the tensioning mechanism (8). The pre-tensioning screw (10) is also installed on the tensioning mechanism (8). The eccentric wheel (12) extending into the interior of the passive synchronous wheel (3) is installed at the center of the tensioning mechanism (8). The eccentric wheel (12) and the tensioning mechanism (8) are connected by a rotating torsion spring (11).

2. The vacuum conveyor belt quick tensioning mechanism according to claim 1, characterized in that: The vacuum conveyor belt (5) is cooperatively mounted on the active traction wheel (1) and the passive synchronous wheel (3).

3. The vacuum conveyor belt quick tensioning mechanism according to claim 1, characterized in that: Main mounting brackets (4) are provided on both sides of the active traction wheel (1) and the passive synchronous wheel (3) and are used for fixing and mounting the active traction wheel (1) and the passive synchronous wheel (3).

4. The vacuum conveyor belt quick tensioning mechanism according to claim 2, characterized in that: The active traction wheel (1) and the passive synchronous wheel (3) are both provided with gears which cooperate with the tooth grooves on the back of the vacuum conveyor belt (5).

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