CN211390093U

CN211390093U - Plastic device weight control system

Info

Publication number: CN211390093U
Application number: CN201922188836.XU
Authority: CN
Inventors: 刘丹妮; 唐忠强
Original assignee: Chongqing Xinglongtai Technology Co ltd
Current assignee: Chongqing Xinglongtai Technology Co ltd
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-09-01
Anticipated expiration: 2029-12-09

Abstract

The utility model provides a plastics equipment weight control system, include: production module and weight control module, the production module is including extruding host computer, cooler bin, tractor and cutting machine, the weight control module includes sensor unit, the potentiometre, the control unit that are used for detecting plastic equipment traction speed, sensor unit set up in extrude the host computer with between the cooler bin, sensor unit the potentiometre and the tractor respectively with the control unit signal connection. The weight of the plastic equipment between the extrusion main machine and the cooling box is collected through the sensor unit, when the weight of the plastic equipment is light, the traction speed is reduced, so that the weight of the plastic equipment is increased until the weight of the plastic equipment tends to a set value of the plastic equipment, when the weight of the plastic equipment is heavy, the traction speed is increased, so that the weight of the plastic equipment is reduced until the weight of the plastic equipment tends to the set value of the plastic equipment, and the purpose of controlling the weight of the plastic equipment to be stable is achieved through closed-loop control.

Description

Plastic device weight control system

Technical Field

The utility model belongs to processing and production field especially relate to a plastics material weight control system.

Background

At present, open-loop control is generally adopted in the production process of plastic equipment, more uncertain factors exist to cause extrusion amount to fluctuate in a larger range (2-8%), so that the quality of products is unstable, and in the process of manual operation, people often worry that the weight of the produced products is lighter, so that the traction speed is reduced in the production process, but the condition that the weight of the products is heavier occurs. In the product quality inspection process, the product can be qualified by the identification, but more raw material waste is generated; and many abnormal phenomena such as product blockage, deformation, vacuum drop, weight deviation and the like can occur.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a weight control system for plastic equipment, which is used to solve the problem that the weight of the plastic equipment is not convenient to control in the prior art.

To achieve the above and other related objects, there is provided a weight control system for plastic equipment, comprising: production module and weight control module, the production module is including the host computer of extruding that is used for the plastics equipment to extrude, the cooler bin that is used for cooling off the shaping, the tractor that is used for pulling the plastics equipment and the cutting machine that is used for cutting the plastics equipment, weight control module is including being used for detecting extrude the host computer with the sensor unit of the size of plastics equipment between the cooler bin, be used for detecting the potentiometre that the plastics equipment pulled speed, be used for signal transmission and control unit, the sensor unit includes laser displacement sensor, just the sensor unit set up in extrude the host computer with between the cooler bin, the sensor unit the potentiometre and the tractor respectively with the control unit signal connection.

Optionally, a shaping mold for shaping the plastic equipment is further disposed at an output port of the plastic equipment of the extrusion host, and the sensor unit is connected to the shaping mold.

Optionally, the laser displacement sensor is arranged on two sides of the plastic equipment.

Optionally, the laser displacement sensor is arranged above the plastic equipment.

Optionally, a stacking rack for bearing the plastic equipment is arranged behind the cutting machine.

Optionally, the laser displacement sensor includes an HG-C laser displacement sensor.

Optionally, the plastic equipment includes a plastic pipe, a plastic plate, a plastic profile, or a plastic cable.

As mentioned above, the utility model discloses a plastics equipment weight control system has following beneficial effect:

the weight of the plastic equipment between the extrusion main machine and the cooling box is collected through the sensor unit, when the weight of the plastic equipment is light, the control unit controls the tractor to reduce the traction speed, so that the weight of the plastic equipment is increased until the weight of the plastic equipment tends to the set value of the plastic equipment, when the weight of the plastic equipment is heavy, the control unit controls the tractor to increase the traction speed, so that the weight of the plastic equipment is reduced until the weight of the plastic equipment tends to the set value of the plastic equipment, and the purpose of controlling the stable weight of the plastic equipment is achieved through closed-loop control.

Drawings

Fig. 1 is a schematic structural diagram of a weight control system for plastic equipment according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a sensor unit according to an embodiment of the present invention.

Description of reference numerals

1 feeding unit

2 extrusion main machine

3 mould

4 Plastic material

5 potentiometer

6 vacuum box

7 traction machine

8 cutting machine

9 Stacking rack

10 control unit

11 sensor unit

113 laser displacement sensor

12 first transmission line

13 second transmission line

14 third transmission line

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

Please refer to fig. 1-2. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

In order to be able to describe the present invention in detail, first, the weight control system for plastic equipment of the present invention will be described in detail as follows:

referring to fig. 1, the present invention provides a weight control system for plastic equipment, comprising: production module and weight control module, the production module is including the extrusion host computer 2 that is used for the plastics equipment to extrude, be used for cooling fashioned cooler bin 6, be used for pulling the tractor 7 of plastics equipment and the cutting machine 8 that is used for cutting the plastics equipment, in some implementation processes, raw materials for production get into through unloading unit 1 and extrude in host computer 2 and carry out the heat treatment, then extrude the plastics equipment to carry out cooling shaping in the cooler bin, tractor 7 pulls the plastics equipment and gets into cutting machine 8, accomplishes the cutting, produces plastics equipment product, in order to facilitate the product weight of control plastics equipment, plastics equipment weight control system still includes the weight control module, the weight control module is including being used for detecting the sensor unit 11 of the size of plastics equipment between extrusion host computer 2 and the cooler bin 6, the potentiometre 5 that is used for detecting plastics equipment traction speed, A control unit 10 for signal transmission and control, the sensor unit 11 is disposed between the extrusion main machine 2 and the cooling tank 6, the sensor unit 11, the potentiometer 5 and the tractor 7 are respectively connected with the control unit 10 by signals, in some implementation processes, the sensor unit 11 detects the size of the plastic material between the extrusion main machine 2 and the cooling tank 6, for example, detects the displacement change of the plastic material in the radial direction to determine the weight of the plastic material, when the displacement in the radial direction is increased, the weight of the plastic material is determined to be increased, when the displacement in the radial direction is decreased, the weight of the plastic material is determined to be decreased, the signal of the weight change of the plastic material is transmitted to the control unit 10, the potentiometer 5 also transmits the speed signal of the tractor 7 to the control unit 10, when the weight of the plastic material is decreased, the control unit 10 controls the tractor 7 to decrease the traction speed, therefore, the weight of the plastic equipment is increased until the weight of the plastic equipment tends to a set value of the plastic equipment, when the weight of the plastic equipment is larger, the control unit 10 controls the tractor 7 to increase the traction speed, so that the weight of the plastic equipment is reduced until the weight of the plastic equipment tends to the set value of the plastic equipment, and the purpose of controlling the weight of the plastic equipment to be stable is achieved through closed-loop control.

Referring to fig. 2, in some implementations, the sensor unit further includes a laser displacement sensor 113 for detecting a size of the plastic material between the extrusion host and the cooling tank, for example, the laser displacement sensor 113 is disposed on two sides or above the plastic material 4, and the sensor unit 11 is disposed on the mold 3, for example, to avoid that the thermal radiation or the thermal transmission generated by the thermoformed plastic material 4 affects a precision of the laser displacement sensor 113, the laser displacement sensor 113 may be disposed on two sides of the plastic material 4, for example, on one side of the material tube 112, when the plastic material 4 performs a traction movement along a guide of the material tube 112, the plastic material 4 may generate an acting force on the material tube 112, when the plastic material 4 expands, the plastic material 4 generates an acting force on the material tube 112, and the material tube 112 generates a stress deformation, and then the displacement of the equipment pipe 112 generated by stress deformation is collected through the laser displacement sensor 113, when the distance between the equipment pipe 112 and the laser displacement sensor 113 is smaller, the weight of the plastic equipment 4 is judged to be larger, the control unit 10 controls the tractor 7 to increase the traction speed, so that the weight of the plastic equipment is reduced until the weight of the plastic equipment approaches the reference value of the plastic equipment, and when the distance between the equipment pipe 112 and the laser displacement sensor 113 is larger, the control unit 10 controls the tractor 7 to decrease the traction speed, so that the weight of the plastic equipment can be controlled to be increased until the weight of the plastic equipment approaches the reference value of the plastic equipment. The size of the plastic material extruded by the extrusion host machine, such as the length perpendicular to the moving direction, the weight of the plastic material between the extrusion main machine 2 and the cooling box 6 is calculated according to the length parameter, the weight of the plastic material and the traction speed, when the weight of the plastic equipment is light, the control unit 10 controls the traction machine 7 to reduce the traction speed, therefore, the weight of the plastic equipment is increased until the weight of the plastic equipment approaches to the set value of the plastic equipment, when the weight of the plastic equipment is heavy, the control unit 10 controls the traction machine 7 to increase the traction speed, therefore, the weight of the plastic equipment is reduced until the weight of the plastic equipment approaches to the set value of the plastic equipment, the purpose of controlling the weight of the plastic equipment to be stable is achieved through closed-loop control, in some implementations, the laser displacement sensor includes but is not limited to a HG-C laser displacement sensor.

In some implementations, a shaping mold for shaping the plastic equipment is further disposed between the extrusion main machine and the cooling box, and a stacking rack for carrying the plastic equipment is further disposed after the cutting machine.

In some implementations, the control unit includes a PID controller, and the control unit may also employ various units that can implement adjustable digital signals, such as various single-chip microcomputers, microcontrollers, DSPs (digital signal processors), FPGAs (Field-Programmable Gate arrays), upper computers or Central Processing Units (CPUs), in this embodiment, the control system can adopt a programmable controller, an analog quantity module, a weighing module, a touch screen, a switching power supply, a stepping driver, a stepping motor, a stepping speed reducer and the like, various control functions may be implemented by programming a programmable controller, such as in the present embodiment, the device realizes the functions of collecting, processing and demodulating the weight of the plastic equipment, the size of the plastic equipment and the traction speed of the plastic equipment, and has the advantages of convenience in interface calling and control.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. A plastic device weight control system, comprising: production module and weight control module, the production module is including the host computer of extruding that is used for the plastics equipment to extrude, the cooler bin that is used for cooling off the shaping, the tractor that is used for pulling the plastics equipment and the cutting machine that is used for cutting the plastics equipment, weight control module is including being used for detecting extrude the host computer with the sensor unit of the size of plastics equipment between the cooler bin, be used for detecting the potentiometre that the plastics equipment pulled speed, be used for signal transmission and control unit, the sensor unit includes laser displacement sensor, just the sensor unit set up in extrude the host computer with between the cooler bin, the sensor unit the potentiometre and the tractor respectively with the control unit signal connection.

2. A plastic equipment weight control system as claimed in claim 1, wherein a sizing die for sizing plastic equipment is further provided at an output port of the plastic equipment of the extrusion main machine, and the sensor unit is connected to the sizing die.

3. A plastic fixture weight control system as claimed in claim 1 or 2 wherein the laser displacement sensors are located on both sides of the plastic fixture.

4. A plastic fixture weight control system as claimed in claim 1 or 2 wherein the laser displacement sensor is disposed above the plastic fixture.

5. A plastic equipment weight control system as in claim 2 wherein there is a stacker for carrying plastic equipment after the cutter.

6. A plastic device weight control system as in claim 1 wherein said laser displacement sensor comprises a HG-C laser displacement sensor.

7. A plastic equipment weight control system as in claim 1 wherein the plastic equipment comprises plastic tubing, plastic sheet, plastic profile, or plastic cable.