Weighing equipment for PVC drain pipe production

Abstract

The utility model discloses a weighing device for PVC drain pipe production, the weighing device is located at the outlet end of a cutting device on a PVC drain pipe production line, the next device of the weighing device is a guiding device for framing the PVC drain pipe, the weighing device comprises a vertical plate and a lifting device, the vertical plate is connected with the lifting device through a pressure scale, and the pressure scale is connected with the vertical plate. A plurality of shaft rods are installed on the front face of the vertical plate at equal intervals, guide cylinders are installed at the ends of the shaft rods through bearings, under the ascending action of the lifting device, the contact faces of the guide cylinders and the PVC drainage pipes are flush with the outlet end of the cutting-off equipment, and under the descending action of the lifting device, the PVC drainage pipes located on the guide cylinders are driven to descend. According to the utility model, the plurality of guide cylinders are used for receiving the cut-off pipeline, the pipeline can be received horizontally and stably at the outlet of the cutting assembly, and accurate weight data can be obtained immediately after the pipeline is completely cut off, so that the weight measuring efficiency is improved, and a production line control system can respond quickly.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment related to the production of PVC drainage pipes, in particular to a weighing device used for the production of PVC drainage pipes. Background Art

[0002] The production process of PVC drainage pipe is extrusion molding, cooling, laminating, cutting, weighing and framing. The purpose of weighing is to obtain the wall thickness data of the pipe. After the data is obtained, the wall thickness of the subsequent pipe can be controlled. The current weighing structure is set on the guide component between cutting and framing. That is, after cutting, the pipe enters the frame along the guide component and weighs it during this process. For this structure, there is a lag in the data obtained (caused by the flow time of the pipe), and the guide component has a support plate to catch the cut pipe. The support plate cannot ensure that it is level with the outlet of the cutting mechanism, so the pipe falls to the support plate, which is unstable. In addition, the pipe needs to stop in the guide component to generate accurate weight data, which will lead to low efficiency.

[0003] Therefore, in order to correct the above-mentioned defects, we have proposed a weighing device for the production of PVC drainage pipes. Utility Model Content

[0004] The utility model solves the technical problem of providing a weighing device for producing PVC drainage pipes.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a weighing device for the production of PVC drain pipes, which is located at the outlet end of the cutting device on the PVC drain pipe production line. The next device of the weighing device is a guide device for framing the PVC drain pipes, which includes a vertical plate and a lifting device. The vertical plate and the lifting device are connected by a pressure scale. Several shafts are equidistantly installed on the front of the vertical plate, and guide cylinders are installed on the ends of the shafts through bearings. Under the rising action of the lifting device, the contact surface of the guide cylinder and the PVC drain pipe is flush with the outlet end of the cutting device. Under the descending action of the lifting device, the PVC drain pipes on the several guide cylinders are driven to descend and transferred to the guide device.

[0006] Furthermore, the lifting device includes a carrier plate and a plurality of hydraulic rods at the bottom of the carrier plate, and a pressure scale is installed on the upper end surface of the carrier plate.

[0007] Furthermore, both ends of the guide cylinder are thicker than the middle portion, and the two ends and the middle connecting portion are in an inclined structure.

[0008] Furthermore, a door hole is provided at the connection between the vertical plate and the shaft rod, one end of the shaft rod passes through the door hole and extends to the back of the vertical plate, the shaft rod is connected to the door hole through an axle pin, a limit plate 1 is fixed on the front of the door hole, and a limit plate 2 is provided on the back of the door hole. When the shaft rod is in a horizontal state, both the limit plate 1 and the limit plate 2 are in contact with the upper end of the shaft rod.

[0009] Furthermore, the guide device has an inclined guide plate, and one upturned end of the guide plate is connected to a plurality of guide rods with the same slope as the guide plate, and the plurality of guide rods and the plurality of guide cylinders are staggered with each other.

[0010] Compared with the existing technology, the beneficial effects of the present invention are: the present device uses multiple guide cylinders to catch the cut pipe, which can be level with the outlet of the cutting component and stably catch the pipe. When the pipe is completely cut, accurate weight data can be immediately obtained, which improves the weight measurement efficiency and enables the production line control system to respond quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the guide cylinder structure in the utility model;

[0013] Figure 3 This is a schematic diagram of the guide cylinder installation structure in the utility model;

[0014] Figure 4 This is a schematic diagram of the guide rod structure in the utility model.

[0015] Numbers in the figure:

[0016] 1. Hydraulic rod; 2. Carrier plate; 3. Pressure scale; 4. Vertical plate; 5. Shaft rod; 6. Guide cylinder; 7. Limit plate 2; 8. Door opening; 9. Axis pin; 10. Limit plate 1; 11. Guide plate; 12. Guide rod. DETAILED DESCRIPTION

[0017] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] The utility model provides a technical solution:

[0019] See also Figure 1-4A weighing device for PVC drain pipe production, which is located at the outlet end of the cutting device on the PVC drain pipe production line. The next device of the weighing device is a guide device for framing the PVC drain pipe, including a vertical plate 4 and a lifting device. The vertical plate 4 and the lifting device are connected by a pressure scale 3. Several shaft rods 5 are equidistantly installed on the front of the vertical plate 4. The ends of the shaft rods 5 are installed with guide cylinders 6 through bearings. Under the rising action of the lifting device, the contact surface of the guide cylinder 6 and the PVC drain pipe is flush with the outlet end of the cutting device. Under the descending action of the lifting device, the PVC drain pipes on the several guide cylinders 6 are driven to descend and transferred to the guide device.

[0020] In the initial state, the height of all guide cylinders 6 is lowered by the action of the lifting device, that is, the uppermost end surface of the guide cylinder 6 is lower than the outlet end of the cutting device. When the end of the pipeline gradually extends from the outlet end of the cutting device, the lifting device starts to drive all guide cylinders 6 to rise. At this time, the first guide cylinder 6 begins to support the pipeline, and all guide cylinders 6 maintain this height, and there will be no height difference with the outlet end of the cutting device. As the pipeline extends, the pipeline begins to move forward along the guide cylinder 6. After the pipeline is cut, the pipeline has been supported by all guide cylinders 6 and there will be no instantaneous drop fluctuation. At this time, the pressure scale obtains weight data. According to information such as the cut length and density of the pipeline, the wall thickness of the pipeline can be calculated.

[0021] The guide device has an inclined guide plate 11, and the upturned end of the guide plate 11 is connected to a plurality of guide rods 12 with the same slope as the guide plate 11. The plurality of guide rods 12 and the plurality of guide cylinders 6 are staggered with each other. When the lifting device drives the pipeline to descend, the height of the guide cylinder 6 is lower than the guide rod 12, and the pipeline will be caught by the guide rod 12.

[0022] Specifically, the lifting device includes a carrier plate 2 and a plurality of hydraulic rods 1 at the bottom of the carrier plate 2 , and a pressure scale 3 is installed on the upper end surface of the carrier plate 2 .

[0023] Among them, as the length of the pipeline extends longer, the pipeline will become skewed. In order to prevent the pipeline from falling off the guide tube 6, the two ends of the guide tube 6 are thicker than the middle part, and the two ends and the middle connecting part are in an inclined structure, that is, the pipeline is blocked by the two ends of the guide tube 6.

[0024] In the above, after weighing is completed, the pipeline needs to enter the guide assembly and then enter the frame along the guide assembly. Since the two ends of the guide cylinder 6 can block the pipeline, in order to prevent the pipeline from being blocked by the end of the guide cylinder 6 when transitioning from the guide cylinder 6 to the guide rod 12, the guide cylinder 6 needs to be tilted toward the guide rod 12 after descending to facilitate the pipeline to detach from the guide cylinder 6. Specifically, a door hole 8 is provided at the connection between the vertical plate 4 and the shaft rod 5. One end of the shaft rod 5 passes through the door hole 8 and extends to the back of the vertical plate 4. The shaft rod 5 is connected to the door hole 8 by an axle pin 9. A limit plate 10 is fixed to the front of the door hole 8, and a limit plate 2 7 is provided on the back of the door hole 8. When the shaft rod 5 is in a horizontal state, the limit plate 10 and the limit plate 2 7 are both in contact with the upper end of the shaft rod 5;

[0025] That is, when the lifting device drives the guide cylinder 6 to rise to the required height, the guide cylinder 6 becomes horizontal under the action of the limit plate 10 and the limit plate 2 7. Once it descends, the shaft 5 is no longer suppressed by the limit plate 2 7 and will fall toward the guide rod 12.

[0026] It should be noted that the cutting equipment, guide assembly, guide rod 12, etc. mentioned in this case are not the technical points to be protected in this case, and their purpose is to modify this case.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A weighing device for PVC drain pipe production, located at the outlet of a cutting device on a PVC drain pipe production line. The device below the weighing device is a guide device for framing the PVC drain pipe. The device is characterized by: The invention comprises a vertical plate (4) and a lifting device, wherein the vertical plate (4) and the lifting device are connected via a pressure scale (3), a plurality of shafts (5) are equidistantly mounted on the front of the vertical plate (4), and a guide cylinder (6) is mounted on the end of the shaft (5) via a bearing. Under the rising action of the lifting device, the guide cylinder (6) is flush with the contact surface of the PVC drainage pipe and the outlet end of the cutting device. Under the descending action of the lifting device, the PVC drainage pipes on the plurality of guide cylinders (6) are driven to descend and transferred to the guide device.

2. The weighing equipment for PVC drainage pipe production according to claim 1, characterized in that: The lifting device comprises a carrier plate (2) and a plurality of hydraulic rods (1) located at the bottom of the carrier plate (2), and a pressure scale (3) is installed on the upper end surface of the carrier plate (2).

3. The weighing equipment for PVC drainage pipe production according to claim 1, characterized in that: The two ends of the guide cylinder (6) are thicker than the middle part, and the two ends and the middle connecting part are in an inclined structure.

4. The weighing equipment for PVC drainage pipe production according to claim 1, characterized in that: A door hole (8) is provided at the connection between the vertical plate (4) and the shaft (5), one end of the shaft (5) passes through the door hole (8) and extends to the back of the vertical plate (4), and the shaft (5) is connected to the door hole (8) through an axle pin (9). A limit plate 1 (10) is fixed to the front of the door hole (8), and a limit plate 2 (7) is provided on the back of the door hole (8). When the shaft (5) is in a horizontal state, the limit plate 1 (10) and the limit plate 2 (7) are both in contact with the upper end of the shaft (5).

5. The weighing equipment for PVC drainage pipe production according to claim 1, characterized in that: The guide device comprises an inclined guide plate (11), an upturned end of the guide plate (11) being connected to a plurality of guide rods (12) having the same slope as the guide plate, and the plurality of guide rods (12) and the plurality of guide cylinders (6) being staggered with each other.

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