Pressing mechanism with grating ruler and electric cylinder

Abstract

The utility model discloses a hold-down mechanism with a grating ruler and an electric cylinder, which comprises an equipment main body, and a servo electric cylinder, a pressure sensor, a cooling upper roller bearing seat, a detection positioning assembly and a control assembly which are arranged on the equipment main body, and the servo electric cylinder, the pressure sensor and the cooling upper roller bearing seat are sequentially connected. A bearing is arranged in the cooling upper roller bearing seat, the cooling pressing roller is contained through the bearing, the detecting and positioning assembly is connected with the cooling upper roller bearing seat, and the control assembly is connected with the servo electric cylinder, the pressure sensor and the detecting and positioning assembly. The gap between the two pressing rollers can be accurately adjusted, fine adjustment is supported, the pressure control accuracy and the repeated positioning accuracy are high, and independent control of an electric cylinder is supported.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical manufacturing, and in particular relates to a pressing mechanism with a grating ruler and an electric cylinder. Background Art

[0002] In the production process of continuous glass fiber reinforced thermoplastic composite materials, cooling and compacting is an important process in the entire glass fiber tape production process. The molten resin is mixed with the neatly arranged glass fiber yarn, and after heating and extrusion in the heating section, the molten resin is pressed into the gaps of the glass fiber yarn. At this time, the molten resin and the glass fiber yarn have initially formed a bond, forming a long ribbon of glass fiber with a rough surface. After the glass fiber tape passes through the heating section and is cooled and compacted by the upper and lower cooling rollers, the glass fiber tape has basically taken shape.

[0003] The thickness of the glass fiber tape is the most important parameter of the product. If the thickness control is not accurate, it is very easy to cause uneven thickness of the glass fiber tape, especially if there is thickness deviation in the middle and the two sides, it will affect the quality of the product and the subsequent processing procedures. Pressure control is an important parameter for controlling thickness. At present, the common clamping mechanism with grating scale and electric cylinder uses hydraulics as the power source. The left and right cylinders drive the cooling rollers to press down. The hydraulic oil is compressible, and the gap between the two cooling rollers cannot be accurately controlled by the cylinder. The pressure of the roller can only be controlled by the pressure of the hydraulic station. The pressure control accuracy is not high, and fine-tuning is particularly inconvenient. In addition, the cylinder drives the roller to move up and down, and the repeat positioning accuracy between the two rollers cannot be guaranteed. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a clamping mechanism with a grating ruler and an electric cylinder to solve the deficiencies in the prior art.

[0005] In order to achieve the above object, the utility model is implemented by the following technical solutions:

[0006] A clamping mechanism with a grating scale and an electric cylinder is provided, comprising an equipment main body, and a servo electric cylinder, a pressure sensor, a cooling upper roller bearing seat, a detection and positioning component and a control component arranged on the equipment main body, wherein the servo electric cylinder, the pressure sensor and the cooling upper roller bearing seat are connected in sequence, the cooling upper roller bearing seat is provided with a bearing and a cooling pressing roller is accommodated by the bearing, the detection and positioning component is connected to the cooling upper roller bearing seat, and the control component is respectively connected to the servo electric cylinder, the pressure sensor and the detection and positioning component.

[0007] As for the clamping mechanism with grating ruler and electric cylinder, the detection and positioning component is a grating ruler, and the grating ruler includes a scale grating and a displacement sensor. The displacement sensor is driven to move up and down along the grating ruler by the up and down movement of the cooling upper roller bearing seat.

[0008] As for the clamping mechanism with grating ruler and electric cylinder, the control component includes PLC and touch screen, and the extension and retraction of the servo electric cylinder is controlled by the touch screen. The signal of the grating ruler is connected to the PLC, and the position signal of the cooling upper roller bearing seat is fed back to the touch screen. The pressure sensor calculates the analog quantity of the PLC and feeds back the numerical value on the touch screen.

[0009] The clamping mechanism with a grating scale and an electric cylinder also includes an electric cylinder connecting plate, a pressure sensor connecting plate and a grating scale connecting plate. The electric cylinder connecting plate is arranged between the servo electric cylinder and the pressure sensor, the pressure sensor connecting plate is arranged between the pressure sensor and the cooling upper roller bearing seat, and the grating scale is connected to the cooling upper roller bearing seat via the grating scale connecting plate.

[0010] For example, in the clamping mechanism with grating ruler and electric cylinder, there are one or two servo electric cylinders. When there is only one servo electric cylinder, a protection value is preset before adjusting the lifting and lowering of the cooling upper roller bearing seat individually.

[0011] The beneficial effects of the technical solution of the utility model are:

[0012] The gap between the two pressure rollers can be accurately adjusted and fine-tuning is supported. The pressure control accuracy and repeat positioning accuracy are high, and the electric cylinder can be controlled independently. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] To further illustrate the above-mentioned purpose, structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the utility model;

[0015] Figure 2 This is a partial structural diagram of a preferred embodiment of the utility model;

[0016] In the figure: 1. Equipment body; 2. Servo electric cylinder; 3. Pressure sensor; 4. Cooling upper roller bearing seat; 5. Grating ruler; 6. Touch screen; 7. Electric cylinder connecting plate; 8. Pressure sensor connecting plate; 9. Grating ruler connecting plate; 10. Nut. DETAILED DESCRIPTION

[0017] The terms "utility model" and "the present utility model" used in this specification are intended to refer broadly to all subject matter of this specification and any patent claims below. Statements containing these terms should not be understood to limit the subject matter described herein or to limit the meaning or scope of any patent claim below. In addition, this specification does not attempt to describe or limit the subject matter covered by any claim of any specific component, paragraph, statement or figure of this application. The subject matter should be understood with reference to the entire specification, all drawings and any claims below. The present utility model may have other embodiments and be practiced or implemented in other ways. Moreover, it should be understood that the wording and terminology used herein are for illustrative purposes and should not be considered as limiting.

[0018] The details of the present invention will now be discussed with reference to the accompanying drawings which illustrate the present invention by way of example only. In the accompanying drawings, similar features or components may be marked with the same reference numerals.

[0019] The use of "including", "having" and "comprising" and variations thereof herein is meant to include the items listed thereafter and their equivalents and additional items. Although reference may be made to directions such as above, below, upward, downward, backward, bottom, top, front, back, etc. in describing the drawings, for convenience, reference is made relative to the drawings. These directions are not intended to literally accept or limit the present invention in any form. In addition, terms such as "first", "second", "third", etc. are used herein for illustrative purposes and are not intended to indicate or imply importance or significance.

[0020] See also Figure 1 , Figure 2 As shown, the clamping mechanism with a grating scale and an electric cylinder of the utility model comprises an equipment body 1, and a servo electric cylinder 2, a pressure sensor 3, a cooling upper roller bearing seat 4, a detection and positioning component and a control component arranged on the equipment body 1. The servo electric cylinder 2, the pressure sensor 3 and the cooling upper roller bearing seat 4 are connected in sequence. The cooling upper roller bearing seat 4 is provided with a bearing and accommodates a cooling pressure roller through the bearing, driving the cooling pressure roller to move. The detection and positioning component is connected to the cooling upper roller bearing seat 4, and the control component is respectively connected to the servo electric cylinder 2, the pressure sensor 3 and the detection and positioning component.

[0021] In a preferred embodiment, the detection and positioning component is a grating ruler 5, which includes a scale grating and a displacement sensor. The displacement sensor is driven to move up and down along the grating ruler by the up and down movement of the cooling upper roller bearing seat 4. The grating ruler 5 is used to accurately detect the gap between the two rollers and the repeat positioning accuracy. The grating ruler 5 is installed on the equipment body 1 to ensure that the gap between the upper and lower cooling rollers can be parameter controlled. At the same time, the grating ruler 5 can also ensure the repeat positioning accuracy of the upper roller. The equipment body 1 is the entire equipment bracket, and the pressure sensor 3 preferably adopts a spoke pressure sensor.

[0022] The control components include PLC and touch screen 6. Touch screen 6 is mainly used to control the lifting and lowering of servo electric cylinder 2, display the pressure feedback of pressure sensor 3 and the position size of grating ruler 5. The gap between the upper and lower rollers can be precisely controlled by fine-tuning the value through touch screen 6. The extension and retraction of servo electric cylinder 2 is controlled by touch screen 6. The signal of grating ruler 5 is connected to PLC, and the position signal of cooling upper roller bearing seat 4 is fed back to touch screen 6. Pressure sensor 3 calculates the analog quantity of PLC and feeds back the value on touch screen 6. Spoke pressure sensor is a sensor for detecting the downward pressure of servo electric cylinder 2. The pressure value of the upper roller downward pressure can be read through PLC as a reference pressure value, which is used to better adjust the process pressure value.

[0023] In a preferred embodiment, the clamping mechanism with grating scale and electric cylinder further includes electric cylinder connecting plate 7, pressure sensor connecting plate 8 and grating scale connecting plate 9. The electric cylinder connecting plate 7 is arranged between the servo electric cylinder 2 and the pressure sensor 3. The electric cylinder connecting plate 7 serves as an intermediate transition connecting piece between the electric cylinder and the spoke-type pressure sensor. The electric cylinder piston cylinder is threadedly connected to the electric cylinder connecting plate 7. The spoke-type pressure sensor and the electric cylinder connecting plate 7 are connected by bolts. The pressure sensor connecting plate 8 is arranged between the pressure sensor 3 and the cooling upper roller bearing seat 4. The pressure sensor connecting plate 8 serves as an intermediate transition connecting piece between the spoke-type pressure sensor and the cooling upper roller bearing seat 4. The spoke-type pressure sensor is threadedly connected to the pressure sensor connecting plate 8. The pressure sensor connecting plate 8 is bolted to the cooling upper roller bearing seat 4. The grating scale 5 is connected to the cooling upper roller bearing seat 4 through the grating scale connecting plate 9. One end of the grating scale connecting plate 9 is connected to the cooling upper roller bearing seat 4, and the other end is connected to the displacement sensor of the grating scale 5, which is used to drive the displacement sensor of the grating scale 5 to move up and down. The electric cylinder connecting plate 7 connected to the electric cylinder piston rod is locked by a nut 10 .

[0024] There are one or two servo electric cylinders 2. The servo electric cylinders 2 replace the oil cylinder as the power source. The two electric cylinders drive the cooling roller to move up and down. Each electric cylinder can independently control the cooling roller to move up and down. The protection value must be set for independent adjustment of the lifting to prevent the lifting difference between the left and right sides from being too large, causing damage to the equipment. The servo motor can accurately control the lifting value of the electric cylinder.

[0025] The servo electric cylinder 2 is controlled to extend and retract through the touch screen 6, and the electric cylinders at both ends are adjusted to descend synchronously to ensure that the cooling upper roller is in contact with the lower roller. At this time, the pressure value must be 0. When the pressure value starts to jump, it means that the roller surface on one side has been in contact, then the electric cylinder on the other side can be fine-tuned to descend until the upper and lower roller surfaces are in contact. Through multiple fine-tuning, the upper and lower roller surfaces can be completed in point (similar to the tool setting process in metal processing). After the tool setting is completed, the grating ruler position information is cleared, that is, the position calibration of all upper and lower cooling rollers is completed.

[0026] The above are only preferred embodiments of the present invention, and do not limit the implementation mode and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A clamping mechanism with a grating ruler and an electric cylinder, characterized in that: It includes an equipment body, and a servo electric cylinder, a pressure sensor, a cooling upper roller bearing seat, a detection and positioning component and a control component arranged on the equipment body. The servo electric cylinder, the pressure sensor and the cooling upper roller bearing seat are connected in sequence. The cooling upper roller bearing seat is provided with a bearing and the cooling pressure roller is accommodated through the bearing. The detection and positioning component is connected to the cooling upper roller bearing seat, and the control component is respectively connected to the servo electric cylinder, the pressure sensor and the detection and positioning component.

2. The clamping mechanism with a grating ruler and an electric cylinder as claimed in claim 1, characterized in that: The detection and positioning component is a grating ruler, which includes a scale grating and a displacement sensor. The displacement sensor is driven to move up and down along the scale grating by the up and down movement of the cooling upper roller bearing seat.

3. The clamping mechanism with a grating ruler and an electric cylinder as claimed in claim 2, characterized in that: The control component includes a PLC and a touch screen. The extension and retraction of the servo electric cylinder is controlled by the touch screen. The signal of the grating ruler is connected to the PLC, and the position signal of the cooling upper roller bearing seat is fed back to the touch screen. The pressure sensor calculates the analog quantity of the PLC and feeds back the numerical value on the touch screen.

4. The clamping mechanism with a grating ruler and an electric cylinder as claimed in claim 2, characterized in that: It also includes an electric cylinder connecting plate, a pressure sensor connecting plate and a grating ruler connecting plate. The electric cylinder connecting plate is arranged between the servo electric cylinder and the pressure sensor, the pressure sensor connecting plate is arranged between the pressure sensor and the cooling upper roller bearing seat, and the grating ruler is connected to the cooling upper roller bearing seat via the grating ruler connecting plate.

5. The clamping mechanism with a grating ruler and an electric cylinder as claimed in claim 1, characterized in that: The number of the servo electric cylinders is one or two. When the number of the servo electric cylinders is one, a protection value is preset before individually adjusting the lifting and lowering of the cooling upper roller bearing seat.

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