High-precision automatic meter counting device for pultrusion
By introducing components such as a fixed bracket, a clamping mechanism and a rotary encoder into the meter counting device, the problem of meter wheel jumping caused by product jumping is solved, and high-precision automatic meter counting and slip alarm functions are realized to ensure the accuracy of product length.
Patent Information
- Application Number
- CN202422740933.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-11-11
AI Technical Summary
In the existing meter counting device, the meter wheel will jump due to the jumping of the product during the production process, resulting in length measurement error and affecting the length measurement accuracy.
The use of fixed brackets, clamping mechanisms and rotary encoders ensures that the meter wheel and pressure roller are always pressed against the surface of the workpiece. Combined with the encoder, it provides accurate meter counting and achieves high-precision meter counting and slip alarm through program control.
It realizes high-precision automatic metering of products, reduces length measurement errors, and ensures the stability and accuracy of the production process.
Smart Images
Figure CN223389159U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of meter counting devices, and in particular to a high-precision automatic meter counting device for pultrusion. Background Art
[0002] The fiber-reinforced composite pultrusion process is a thermosetting composite molding method. The raw materials include a resin matrix and a reinforcing material. After the reinforcing material is mixed with the resin matrix, it enters the mold and is heated. After the mold is heated, it is solidified and formed, and then the product is pulled out of the mold by a traction machine. Since this process is an online continuous pultrusion, the product needs to be cut into profiles of a certain length as needed. In this case, the product needs to be measured and cut with a cutting saw when the set length is reached. The automatic metering device is very important in the composite material pultrusion process, which determines the length accuracy of the product cut. If the cutting length does not reach the required length of the profile, it will cause waste or even unqualified products.
[0003] In the existing meter counting device, a roller is installed under the product and a tension spring is installed above the product. The meter wheel is pressed against the surface of the product by the spring. When the product jumps, the spring tensioning process will cause the meter wheel to jump, resulting in length measurement error and affecting the length measurement accuracy. Therefore, a high-precision automatic meter counting device for pultrusion is needed. Utility Model Content
[0004] In order to address the shortcomings of the prior art, the present invention provides a high-precision automatic meter counting device for pultrusion, which solves the technical problem of inaccurate meter counting during the product production process in the above-mentioned background technology.
[0005] The technical solution of the utility model is as follows: a high-precision automatic meter counting device for pultrusion, comprising a fixed bracket and a meter wheel, wherein the fixed bracket is provided with a clamping mechanism for adjusting the height of the meter wheel, and the clamping mechanism includes a meter wheel fixing seat;
[0006] The fixed bracket is provided with a length measuring mechanism for pressing the product and accurately measuring it. The length measuring mechanism includes a rotary encoder fixed to the outside of the meter wheel for providing a pulse signal for the length measuring process. The outside of the meter wheel fixing seat is fixedly connected to an encoder mounting plate for preventing the rotary encoder from rotating with the meter wheel and an encoder bracket for fixing the meter wheel. The fixed bracket is provided with a pressing mechanism for preventing the product from jumping.
[0007] Preferably, the clamping mechanism includes a pressure roller mounting plate fixed outside the fixed bracket, a pressure cylinder is fixed outside the pressure roller mounting plate, a pressure roller bracket is fixed to the telescopic end of the pressure cylinder, a pressure roller shaft is provided in the pressure roller bracket, and a pressure roller is fixed outside the pressure roller shaft.
[0008] Preferably, a screw rotates inside the fixed bracket, a handwheel is fixed outside the screw, a nut is connected to the external thread of the screw, and the nut is fixed outside the meter wheel fixing seat. A linear guide rail assembly is provided outside the fixed bracket for installing, fixing and adjusting the meter wheel fixing seat.
[0009] Preferably, the linear guide rail assembly includes a linear slide rail fixed on a fixed bracket, a slider slides outside the linear slide rail, and the meter wheel fixing seat is fixed to the slider.
[0010] Preferably, the outer surfaces of the meter wheel and the pressure roller are both formed from polyurethane material.
[0011] Preferably, a meter wheel cover is fixed outside the meter wheel fixing seat to protect the meter wheel.
[0012] Compared with the prior art, the beneficial effects of the present invention are:
[0013] The utility model can ensure that the meter wheel is always pressed against the lower surface of the product, and ensure that the pressure roller is always pressed against the upper surface of the product. When the product is pulled and extruded, the meter wheel is driven to rotate. The metering function of the rotary encoder and the meter wheel is utilized to realize the length measurement function of the product. In addition, the high-precision automatic meter counting function and the slippage alarm function of the product are realized in conjunction with program control. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.
[0015] Figure 1 This is a schematic diagram of the three-dimensional structure proposed by the utility model;
[0016] Figure 2 This is a rear view structural diagram of the utility model;
[0017] Figure 3 The utility model proposed Figure 2 Schematic diagram of the enlarged structure of A in the figure.
[0018] In the figure: 1. Fixed bracket; 2. Handwheel; 3. Linear guide assembly; 4. Nut; 5. Lead screw; 6. Meter wheel fixing base; 7. Rotary encoder; 8. Encoder mounting plate; 9. Encoder bracket; 10. Meter wheel; 11. Pressure roller shaft; 12. Pressure roller bracket; 13. Pressure roller; 14. Clamping cylinder; 15. Pressure roller mounting plate; 16. Meter wheel cover. DETAILED DESCRIPTION
[0019] The following will be combined with 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.
[0020] In existing meter counting devices, rollers are installed below the product and tension springs are installed above the product. The meter wheel is pressed against the surface of the product by the spring. When the product jumps, the spring tension will cause the meter wheel to jump, resulting in length measurement errors and affecting the length measurement accuracy. Figure 1-Figure 3 This embodiment provides a high-precision automatic meter counting device for pultrusion, including a fixed bracket 1 and a meter counting wheel 10. The fixed bracket 1 is formed by connecting and installing high-quality carbon steel plates and industrial aluminum profiles, and is used for fixing and adjusting the meter counting device. The fixed bracket 1 can be installed and fixed according to the position of the product.
[0021] refer to Figure 1-Figure 3 As shown, a clamping mechanism for adjusting the height of the meter wheel 10 is provided on the fixed bracket 1. The clamping mechanism includes a meter wheel holder 6. A lead screw 5 rotates within the fixed bracket 1, and a handwheel 2 is fixed to the outside of the lead screw 5 for adjusting the rotation of the lead screw 5. A nut 4 is externally threadedly connected to the lead screw 5, forming a lead screw clamping mechanism with the lead screw 5 for adjusting the height of the meter wheel holder 6. The nut 4 is fixed to the outside of the meter wheel holder 6. A linear guide assembly 3 is provided on the outside of the fixed bracket 1 for mounting, fixing, and adjusting the meter wheel holder 6. The linear guide assembly 3 includes a linear slide fixed to the fixed bracket 1. A slider slides on the outside of the linear slide. The meter wheel holder 6 is fixed to the slider. The linear slide allows the slider to drive the meter wheel holder 6 for linear height adjustment.
[0022] refer to Figure 1-Figure 3As shown, in an existing meter counting device, a roller is mounted below the product and a tension spring is mounted above the product. The meter wheel is pressed against the surface of the product by the spring. When the product jumps, the spring tensioning process causes the meter wheel to jump, resulting in length measurement errors and affecting the length measurement accuracy. To improve the length measurement accuracy, the following configuration is made: a length measurement mechanism is provided on the fixed bracket 1 to press the product and accurately measure the length. The length measurement mechanism includes a rotary encoder 7 fixed to the outside of the meter wheel 10 to provide a pulse signal for the length measurement process. The rotary encoder 7 adopts a high-pulse-count, high-precision encoder. The rotary encoder 7 can be used to measure the speed through a program. The speed measured by the rotary encoder 7 is compared with the operating speed of the device, and a difference is set. When the difference exceeds the set value, the device alarm indicates that the product has slipped. An encoder mounting plate 8 is fixedly connected to the outside of the meter wheel fixed base 6 to prevent the rotary encoder 7 from rotating with the meter wheel 10. The rotary encoder 7 is mounted on one end of the encoder mounting plate 8, and an encoder bracket 9 is used to fix the meter wheel 10. Fixed bracket 1 is equipped with a clamping mechanism to prevent product bouncing. This mechanism includes a pressure roller mounting plate 15 fixed to the outside of fixed bracket 1, which is used to secure the clamping assembly. A clamping cylinder 14 is fixed to the outside of pressure roller mounting plate 15. A pressure roller bracket 12 is fixed to the telescopic end of pressure cylinder 14. A pressure roller shaft 11 is mounted within pressure roller bracket 12, and a pressure roller 13 is fixed to the outside of pressure roller shaft 11. The clamping cylinder 14 is used to compress and release pressure roller 13.
[0023] refer to Figure 1-Figure 3 As shown, the outer surfaces of the meter wheel 10 and the pressure roller 13 are both made of polyurethane material, and the outer circle is ground after CNC turning to ensure the accuracy of the outer diameter of the meter wheel 10. The outer surface of the meter wheel 10 is made of polyurethane material and is used for counting meters. The outer surface of the pressure roller 13 is made of polyurethane material and is used for pressing products.
[0024] refer to Figure 1 As shown, a meter wheel cover 16 is fixed outside the meter wheel fixing seat 6 to protect the meter wheel 10 to prevent the dry yarn from being entangled in the meter assembly when the machine is started, and to prevent the meter wheel 10 from being damaged due to the bending of the product when the product is just pulled out.
[0025] according to Figure 1-Figure 3During trial production, when length measurement is no longer needed, the clamping cylinder 14 can be retracted, raising the clamping mechanism. Simultaneously, the handwheel 2 and screw 5 are used to adjust the meter wheel 10 downward to prevent damage to the meter wheel 10 caused by bending of the product when it is first pulled out. During trial production, the meter wheel cover 16 is secured to the meter wheel mounting bracket 6 to protect the meter wheel 10 and prevent dry yarn from becoming entangled in the meter assembly during the initial trial run. When normal production resumes, the meter wheel cover 16 is removed. The handwheel 2 is used to adjust the meter wheel 10 upward to ensure contact with the product. Simultaneously, the clamping mechanism is lowered to ensure firm contact between the pressure roller 13 and the top surface of the product. The pressure can be adjusted using a pressure reducing valve. Furthermore, a program-controlled alarm is activated to warn of product slippage, ensuring process stability during production. A meter correction factor is set within the program to reduce metering errors.
[0026] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A high-precision automatic metering device for pultrusion, comprising a fixed bracket (1) and a metering wheel (10), characterized in that: The fixing bracket (1) is provided with a clamping mechanism for adjusting the height of the meter wheel (10), and the clamping mechanism includes a meter wheel fixing seat (6); The fixed bracket (1) is provided with a length measuring mechanism for pressing the product and accurately measuring the length of the product. The length measuring mechanism includes a rotary encoder (7) fixed to the outside of the meter wheel (10) for providing a pulse signal for the length measuring process. The meter wheel fixing seat (6) is fixedly connected to an encoder mounting plate (8) for preventing the rotary encoder (7) from rotating with the meter wheel (10) and an encoder bracket (9) for fixing the meter wheel (10). The fixed bracket (1) is provided with a pressing mechanism for preventing the product from jumping.
2. A high-precision automatic meter counting device for pultrusion according to claim 1, characterized in that: The pressing mechanism comprises a pressing roller mounting plate (15) fixed outside a fixed bracket (1), a pressing cylinder (14) fixed outside the pressing roller mounting plate (15), a pressing roller bracket (12) fixed to the telescopic end of the pressing cylinder (14), a pressing roller shaft (11) provided inside the pressing roller bracket (12), and a pressing roller (13) fixed outside the pressing roller shaft (11).
3. The high-precision automatic meter counting device for pultrusion according to claim 1, characterized in that: A lead screw (5) is rotated inside the fixed bracket (1), a hand wheel (2) is fixed outside the lead screw (5), a nut (4) is externally threadedly connected to the lead screw (5), and the nut (4) is fixed outside the meter wheel fixing seat (6). A linear guide rail assembly (3) for installing, fixing and adjusting the meter wheel fixing seat (6) is provided outside the fixed bracket (1).
4. A high-precision automatic meter counting device for pultrusion according to claim 3, characterized in that: The linear guide rail assembly (3) comprises a linear slide rail fixed on a fixed bracket (1), a slider slides outside the linear slide rail, and a meter wheel fixing seat (6) is fixed to the slider.
5. The high-precision automatic meter counting device for pultrusion according to claim 1, characterized in that: The outer surfaces of the meter wheel (10) and the pressure roller (13) are both formed by processing with polyurethane material.
6. The high-precision automatic meter counting device for pultrusion according to claim 1, characterized in that: A meter wheel cover (16) is fixed outside the meter wheel fixing seat (6) to protect the meter wheel (10).