90-degree turning conveying mechanism and PVC plate production system

Abstract

The utility model discloses a 90-degree turning conveying mechanism and a PVC plate production system, and belongs to the technical field of conveying mechanisms. The device comprises a rack, the rack is of an arc-shaped structure, and a conveying unit is rotationally installed on the rack; each conveying unit comprises rotating shafts and riding wheels which are fixedly mounted on the rotating shafts and have different diameters, sector gears are fixedly mounted on one sides of the rotating shafts, and the sector gears mounted on the adjacent rotating shafts are meshed with each other; the conveying unit comprises a driving conveying unit and a driven conveying unit; a motor is installed on the side, away from the sector gear, of the driving conveying unit, and the driving conveying unit transmits power to the driven conveying unit through the sector gear. According to the 90-degree turning conveying mechanism, the 90-degree turning function of a plate on a conveying line is achieved according to the linear speed principle of the riding wheel set, and the riding wheel set in the 90-degree turning conveying mechanism achieves speed synchronization through the sector gear set.

Description

Technical Field

[0001] The utility model relates to the technical field of conveying mechanisms, and more specifically, to a 90-degree turning conveying mechanism and a PVC board production system. Background Art

[0002] PVC-U drainage board is a building material made of polyvinyl chloride (PVC). It is corrosion-resistant, heat-resistant, wear-resistant and has good sealing properties. It is suitable for various drainage systems and has a long service life and broad application prospects. The production process of PVC-U drainage board is: raw material feeding, intelligent mixing and feeding, raw material extrusion, mold forming, cooling and shaping, board traction, cutting machine, PVC board horizontal conveying, PVC board 90° conveying, PVC board vertical conveying, finished product packaging and off-line.

[0003] At present, there are some problems and limitations in achieving 90-degree turns on conveyor lines. First, traditional conveying mechanisms usually require the use of large-scale turning transmission mechanisms or curved conveyor belts, which are large in size and not suitable for compact production environments. Secondly, traditional conveying mechanisms are prone to friction and wear when turning, resulting in damage to conveyed items or reduced production efficiency. Finally, the operating stability and accuracy of traditional conveying mechanisms need to be improved, and adjustment and maintenance are relatively complex and costly. Utility Model Content

[0004] The utility model provides a 90-degree turning conveying mechanism and a PVC plate production system to realize the 90-degree turning function of the plate on the conveying line.

[0005] In order to solve the above technical problems, the technical solution of the utility model is as follows:

[0006] In a first aspect, the utility model provides a 90-degree turning conveying mechanism, which comprises a frame, the frame is an arc-shaped structure, M conveying units are rotatably mounted on the frame, and M is a positive integer greater than or equal to 2; the conveying unit comprises a rotating shaft and N supporting wheels with different diameters fixedly mounted on the rotating shaft, and N is a positive integer; a sector gear is fixedly mounted on one side of the rotating shaft, and the sector gears installed on adjacent rotating shafts are meshed with each other;

[0007] The M conveying units include 1 active conveying unit and M-1 driven conveying units; a motor is installed on the side of the active conveying unit away from the fan gear, and the active conveying unit transmits power to the M-1 driven conveying units through the fan gear.

[0008] Furthermore, the frame is provided with an inlet end and an outlet end, and the extension lines of the inlet end and the outlet end form an angle of 90 degrees.

[0009] Furthermore, a bearing seat is fixedly mounted on the frame, and the rotating shaft is rotatably mounted in the bearing seat.

[0010] Furthermore, the motor is a servo motor, and the output end of the motor is fixedly connected to the rotating shaft corresponding to the active conveying unit.

[0011] Furthermore, the edge material of the supporting wheel is nitrile rubber, which is used to increase the friction between the wheel edge and the conveyed items.

[0012] Furthermore, the supporting wheel is fixedly mounted on the rotating shaft via a key and a limiting ring.

[0013] Furthermore, the top ends of the N supporting wheels installed on the rotating shaft are located at the same height.

[0014] Furthermore, the side of the rotating shaft where the sector gear is mounted is the transmission side, and the diameter of the supporting wheel increases gradually from the transmission side of the rotating shaft to the other side of the rotating shaft.

[0015] In the second aspect, the utility model provides a PVC board production system, which includes a conveyor line, wherein the conveyor line includes a first conveyor belt and a second conveyor belt, the outlet end of the first conveyor belt and the inlet end of the second conveyor belt are connected by a 90-degree turning conveying mechanism, and the 90-degree turning conveying mechanism adopts the aforementioned 90-degree turning conveying mechanism.

[0016] Furthermore, the motor in the 90-degree turning conveying mechanism is electrically connected to a PLC controller; a first proximity switch is installed at the outlet end of the first conveyor belt, and a second proximity switch is installed at the inlet end of the second conveyor belt; the first proximity switch and the second proximity switch are electrically connected to the PLC controller.

[0017] Compared with the prior art, the beneficial effects of the technical solution of the utility model are:

[0018] 1. The 90-degree turning conveying mechanism provided by the utility model adopts an arc-shaped frame structure, has a compact design, is suitable for various production environments, and occupies less space.

[0019] 2. In the present invention, the conveying unit adopts a combination of a rotating shaft and a supporting wheel, and realizes transmission through a sector gear, thereby ensuring synchronous operation between the conveying units and improving the accuracy and stability of turning.

[0020] 3. In the present invention, a servo motor is used as the power source of the active conveying unit, which is transmitted to the driven conveying unit through the sector gear, and has the characteristic of high-efficiency power transmission.

[0021] Fourth, in the utility model, the edge material of the supporting wheel is made of nitrile rubber, which can increase the friction between the supporting wheel and the conveyed objects, ensuring that the objects are not easy to slide or be damaged during the turning process.

[0022] 5. In the present invention, the application of PLC controller and proximity switch realizes intelligent control and monitoring of the whole system, thus improving production efficiency and operation stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 This is a schematic diagram of the structure of the 90-degree turning conveying mechanism of the utility model;

[0025] Figure 2 It is a structural schematic diagram of the active conveying unit in the 90-degree turning conveying mechanism of the utility model;

[0026] Figure 3 It is a structural schematic diagram of a driven conveying unit in a 90-degree turning conveying mechanism of the utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the conveyor line in the PVC sheet production system of the utility model;

[0028] Description of the markings in the figure:

[0029] 1. First conveyor belt; 2. First proximity switch; 3. Motor;

[0030] 4. Rack; 401. Inlet end; 402. Outlet end;

[0031] 5. Sector gear; 6. Second conveyor belt; 7. Second proximity switch; 8. Rotating shaft; 9. Limiting ring; 10. Bearing seat; 11. Support wheel. DETAILED DESCRIPTION

[0032] In order to better understand the purpose, structure and function of the utility model, the technical solution of the utility model is further described in detail below in conjunction with the accompanying drawings and specific preferred embodiments.

[0033] In the description of the present utility model, it should be understood that the terms "left side", "right side", "upper part", "lower part", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. "First", "second", etc. do not indicate the importance of the components, and therefore cannot be understood as a limitation on the present utility model. The specific dimensions used in the embodiments are only for illustrating the technical solution, and do not limit the scope of protection of the present utility model. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0034] Unless otherwise clearly specified and limited, the terms "install", "set", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0035] Embodiment 1:

[0036] like Figure 1-3 As shown, the utility model provides a technical solution: a 90-degree turning conveying mechanism, comprising a frame 4, the frame 4 is an arc-shaped structure, M conveying units are rotatably mounted on the frame 4, and M is a positive integer greater than or equal to 2; the conveying unit comprises a rotating shaft 8 and N supporting wheels 11 with different diameters fixedly mounted on the rotating shaft 8, and N is a positive integer; a sector gear 5 is fixedly mounted on one side of the rotating shaft 8, and the sector gears 5 installed on adjacent rotating shafts 8 are meshed with each other;

[0037] The M conveying units include 1 active conveying unit and M-1 driven conveying units; a motor 3 is installed on the side of the active conveying unit away from the sector gear 5, and the active conveying unit transmits power to the M-1 driven conveying units through the sector gear 5.

[0038] In this embodiment, the 90° turning function of the plate on the conveyor line is realized based on the linear speed principle of the supporting roller group. The working principle is that the supporting roller groups with different diameters are evenly distributed on the same shaft, fixed on the shaft with a key and a positioning ring structure. When the motor drives the shaft to rotate, the linear speed of the supporting roller with the largest diameter is the largest, and the linear speed of the supporting roller with the smallest diameter is the smallest. Among them, the linear speed V 大轮 =2V 小轮, so that the linear speed of the wheel edge of the supporting roller group forms a uniform gradient, and the PVC-U sheet realizes a 90° turn when the transmission shaft rotates. The supporting roller group relies on the sector gear group to achieve speed synchronization.

[0039] Embodiment 2:

[0040] Based on Example 1, Figure 1-3 The frame 4 is provided with an inlet end 401 and an outlet end 402, and the extension lines of the inlet end 401 and the outlet end 402 form an angle of 90 degrees.

[0041] Furthermore, a bearing seat 10 is fixedly mounted on the frame 4 , and the rotating shaft 8 is rotatably mounted in the bearing seat 10 .

[0042] Furthermore, the motor 3 is a servo motor, and the output end of the motor 3 is fixedly connected to the rotating shaft 8 corresponding to the active conveying unit.

[0043] Furthermore, the edge material of the supporting wheel 11 is nitrile rubber, which is used to increase the friction between the wheel edge and the conveyed objects.

[0044] Furthermore, the support wheel 11 is fixedly mounted on the rotating shaft 8 via a key and a limit ring 9 .

[0045] Furthermore, the top ends of the N supporting wheels 11 installed on the rotating shaft 8 are located at the same height.

[0046] Furthermore, the side of the rotating shaft 8 where the sector gear 5 is installed is the transmission side, and the diameter of the supporting wheel 11 gradually increases from the transmission side of the rotating shaft 8 to the other side of the rotating shaft 8 .

[0047] Embodiment 3:

[0048] like Figure 4 As shown, the utility model provides a technical solution: a PVC board production system, including a conveyor line, the conveyor line includes a first conveyor belt 1 and a second conveyor belt 6, the outlet end of the first conveyor belt 1 and the inlet end of the second conveyor belt 6 are connected by a 90-degree turning conveying mechanism, and the 90-degree turning conveying mechanism adopts the aforementioned 90-degree turning conveying mechanism.

[0049] The PVC sheet production system may also include an electric control box, a frequency converter (high speed), an air switch, a fuse, etc.; the motor 3 has a plurality of wiring terminals, including a power input terminal, an encoder signal terminal, a control signal terminal, etc. The power input terminal is connected to the power supply terminal of the electric control box, and the encoder signal and control signal terminals are connected to the corresponding ports of the electric control box or the PLC controller through cables. The electric control box is a device for controlling the motor 3, and its wiring includes power input, motor output, and a communication interface with other controllers. The power input needs to be connected to the power supply, and the motor output is connected to the power input terminal of the servo motor. The communication interface with other controllers, such as the PLC controller and the frequency converter, is connected through a communication cable. The PLC controller is a programmable logic controller used to control the operating logic of the entire electrical system. The PLC controller has multiple input and output (I / O) ports, which can be connected to other devices such as servo motors, electric control boxes, frequency converters, proximity switches, etc. through cables. The specific connection method can be configured according to system requirements. The frequency converter is responsible for controlling the running speed of the motor and provides the function of adjusting the motor speed. The frequency converter has terminals such as power input, motor output, and control signal input. The power input needs to be connected to the power supply, the motor output is connected to the power input of the servo motor, and the control signal input is connected to the PLC controller through a communication cable. Air switches and proximity switches are electrical switches used to control electrical equipment. They are connected through wires, where the air switch is connected to the electrical control box or PLC controller, and the proximity switch is connected to the PLC controller or other control equipment. Fuses are used to protect electrical equipment and systems from damage caused by abnormal current conditions such as overload or short circuit. Fuses are connected between the electrical control box and the power supply to provide power protection.

[0050] Furthermore, the motor 3 in the 90-degree turning conveying mechanism is electrically connected to a PLC controller; a first proximity switch 2 is installed at the outlet end of the first conveyor belt 1, and a second proximity switch 7 is installed at the inlet end of the second conveyor belt 6; the first proximity switch 2 and the second proximity switch 7 are electrically connected to the PLC controller. After the first horizontal proximity switch 2 detects the plate, the PLC controller controls the servo motor to drive the main shaft of the supporting roller to rotate, and the main shaft of the supporting roller drives the other supporting roller group to rotate synchronously through the sector gear 5, completing the 90° rotation of the plate PVC plate to the vertical second conveyor belt 6.

[0051] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A 90-degree turning conveying mechanism, characterized in that: The invention comprises a frame (4), wherein the frame (4) is an arc-shaped structure, and M conveying units are rotatably mounted on the frame (4), wherein M is a positive integer greater than or equal to 2; the conveying unit comprises a rotating shaft (8) and N supporting wheels (11) with different diameters fixedly mounted on the rotating shaft (8), wherein N is a positive integer; a sector gear (5) is fixedly mounted on one side of the rotating shaft (8), and the sector gears (5) mounted on adjacent rotating shafts (8) are meshed with each other; The M conveying units include 1 active conveying unit and M-1 driven conveying units; a motor (3) is installed on the side of the active conveying unit away from the fan gear (5), and the active conveying unit transmits power to the M-1 driven conveying units through the fan gear (5).

2. The 90-degree turning conveying mechanism according to claim 1, characterized in that: The frame (4) is provided with an inlet end (401) and an outlet end (402), and the extension lines of the inlet end (401) and the outlet end (402) form an angle of 90 degrees.

3. The 90-degree turning conveying mechanism according to claim 1, characterized in that: A bearing seat (10) is fixedly mounted on the frame (4), and the rotating shaft (8) is rotatably mounted in the bearing seat (10).

4. The 90-degree turning conveying mechanism according to claim 1, characterized in that: The motor (3) is a servo motor, and the output end of the motor (3) is fixedly connected to a rotating shaft (8) corresponding to the active conveying unit.

5. The 90-degree turning conveying mechanism according to claim 1, characterized in that: The edge material of the supporting wheel (11) is nitrile rubber, which is used to increase the friction between the wheel edge and the conveyed objects.

6. The 90-degree turning conveying mechanism according to claim 1, characterized in that: The supporting wheel (11) is fixedly mounted on the rotating shaft (8) via a key and a limiting ring (9).

7. The 90-degree turning conveying mechanism according to claim 1, characterized in that: The top ends of the N supporting wheels (11) mounted on the rotating shaft (8) are located at the same height.

8. The 90-degree turning conveying mechanism according to claim 1, characterized in that: The side of the rotating shaft (8) on which the sector gear (5) is mounted is the transmission side, and the diameter of the supporting wheel (11) gradually increases from the transmission side of the rotating shaft (8) to the other side of the rotating shaft (8).

9. A PVC sheet production system, characterized in that: The invention comprises a conveyor line, wherein the conveyor line comprises a first conveyor belt (1) and a second conveyor belt (6), wherein the outlet end of the first conveyor belt (1) and the inlet end of the second conveyor belt (6) are connected via a 90-degree turning conveying mechanism, and the 90-degree turning conveying mechanism adopts the 90-degree turning conveying mechanism as described in any one of claims 1 to 8.

10. The PVC sheet production system according to claim 9, characterized in that: The motor (3) in the 90-degree turning conveying mechanism is electrically connected to a PLC controller; a first proximity switch (2) is installed at the outlet end of the first conveying belt (1), and a second proximity switch (7) is installed at the inlet end of the second conveying belt (6); the first proximity switch (2) and the second proximity switch (7) are electrically connected to the PLC controller.

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