Double-body scale continuous weighing system for rubber extruded products

Abstract

The utility model discloses a rubber extruded product double-body scale continuous weighing system, comprising a double-body scale, the double-body scale comprises a double-platform scale body installed on a scale rack and used for weighing rubber extruded products, and a roller way arranged on the double-platform scale body, the double-platform scale body is connected with a central processor, and the central processor is connected with the double-platform scale body. A front-end power roller way and a rear-end power roller way are further arranged on the two sides of the double-body scale, a CCD camera is arranged at an inlet of the front-end power roller way, a marking device is arranged on the rear-end power roller way, and the CCD camera and the marking device are connected with a central processing unit. The double-body scale is placed between the front and rear power roller ways with the same speed, so that the influence caused by front and rear speed fluctuation is avoided; the number information of products is collected through the CCD camera, the double-body scale is controlled to automatically switch production modes, and when the weight of the products exceeds a controllable range, marks are automatically marked on unqualified products. According to the utility model, the requirements of high-automation, high-stability and real-time dynamic weighing of single and double rubber extruded products can be met.

Description

Technical Field

[0001] This utility model relates to the technical field of rubber extrusion composite production line, specifically to a continuous weighing system for rubber extruded products using a dual-body weighing system. Background Technology

[0002] In rubber extrusion compounding production lines, to ensure consistent product quality, the weight of each extruded section needs to be continuously weighed on the production line. Typically, continuous dynamic weighing is performed on each 1-meter-long section; therefore, the weighing device is also called a meter scale or dynamic scale. With the development of rubber extrusion compounding technology, the technology of simultaneously extruding two sections has been available for some time. This technology significantly improves production efficiency and has a clear advantage for symmetrical rubber products (such as tire sidewalls), ensuring consistent size and weight between the left and right symmetrical sections, and significantly improving the dynamic balance performance of the tire.

[0003] To meet the requirement of simultaneous continuous dynamic weighing of two batches of products, Chinese utility model patent CN201429454Y discloses a dynamic scale capable of simultaneously and continuously weighing multiple materials. This dynamic scale includes a weighing frame, weighing body, roller conveyors, and a weighing instrument. Two or more weighing bodies are arranged side-by-side on the weighing frame, and each weighing body has a row of roller conveyors. This dynamic scale can continuously and dynamically weigh the weight per unit length of one material in real time, and can also continuously and dynamically weigh the weight per unit length of two or more materials. When producing multiple batches of materials, each batch passes through the roller conveyors on the weighing body independently without interference. The sensors under two adjacent weighing bodies can share a single weighing instrument, which can simultaneously display the weight of each weighing body and the cumulative weight on a single display window. The weight status of the product is displayed via five-color indicator lights, including overweight, slightly overweight, acceptable, slightly underweight, and underweight states.

[0004] The dynamic scale disclosed in the aforementioned Chinese utility model is still widely used in the continuous dynamic weighing of rubber extruded products. Since most single-piece and dual-piece rubber products are produced on the same rubber extrusion composite production line, the aforementioned dynamic scale is referred to as a dual-piece scale when the number of products exceeds two. Existing dual-piece scales are typically used as an independent functional section in rubber extrusion composite production lines, and their use has the following shortcomings:

[0005] 1. The length of the weighing body of a dual-body scale is relatively short, usually 1 meter. When used as an independent functional section, the speed fluctuation between the front and rear functional sections can easily affect the weighing accuracy of the products.

[0006] 2. When switching between single-line and double-line production, it is necessary to manually set the single-line or double-line production mode on the weighing instrument. In case of human negligence, a large number of products may be scrapped without being weighed.

[0007] 3. The weight status of the products is only displayed by indicator lights. When the weight of a product is found to be outside the controllable range, it is necessary to manually mark the defective products in order to facilitate the identification and rejection of the products by the operators in the next process. The automation level is low and the influence of human factors is large.

[0008] 4. When producing double-strip products, the products often need to be conveyed a long distance before entering the double-body scale. The products are prone to deviation, and the double-strip products may even overlap, causing the products to not be correctly placed in the corresponding weighing rollers. Utility Model Content

[0009] In view of the shortcomings of the existing technology, this utility model aims to provide a highly automated, stable and reliable dual-body continuous weighing system for rubber extrusion products that can meet the real-time dynamic weighing requirements of both single-line and double-line extrusion products.

[0010] To achieve the above objectives, this utility model provides the following technical solution:

[0011] A continuous weighing system for rubber extruded products using a dual-body weighing system includes a dual-body weighing system. The dual-body weighing system includes two weighing platforms mounted on a weighing frame for weighing rubber extruded products, and roller conveyors set on the dual weighing platforms. The dual weighing platforms are connected to a central processing unit. A front-end power roller conveyor and a rear-end power roller conveyor are also set on both sides of the dual-body weighing system. A CCD camera is set at the entrance of the front-end power roller conveyor, and a marking device that can mark marks on rubber products is set on the rear-end power roller conveyor. The CCD camera and the marking device are respectively connected to the central processing unit.

[0012] Furthermore, both the front and rear power roller conveyors are equipped with inner sprockets. At the tail end of the rear power roller conveyor, there is a drive roller connected to a reduction motor. Near the double-body scale, there is a transition roller A on the rear power roller conveyor and a transition roller B on the front power roller conveyor. Both transition rollers A and B are equipped with outer sprockets. The inner sprocket of the drive roller is connected to the inner sprocket of transition roller A through a rear chain. The outer sprocket of transition roller A is connected to the outer sprocket of transition roller B through a transition chain. The inner sprocket of transition roller B is connected to the inner sprocket of the front power roller conveyor through a front chain.

[0013] Furthermore, the marking device includes two marking wheel mechanisms, each of which includes an indentation roller with spikes and a cylinder connected to the indentation roller via a swing arm.

[0014] Furthermore, the marking wheel mechanism can move laterally above the rear power roller conveyor.

[0015] Furthermore, an automatic centering device connected to a central processing unit is installed at the head of the front-end power roller conveyor.

[0016] Furthermore, the automatic centering device includes two sets of inner guide rollers, two sets of outer guide rollers, two sets of adjusting screws arranged vertically, and a guide rod located between the upper and lower adjusting screws. The adjusting screws are fixed to the frame of the front-end power roller conveyor through bearing seats and connected to a stepper motor. The threaded sections on the adjusting screws are symmetrically arranged along the center line. One end of the threaded section is a left-hand thread and the other end is a right-hand thread. The inner guide rollers are threadedly connected to the lower adjusting screw, slidably connected to the guide rod through a sliding sleeve, and suspended on the upper adjusting screw. The outer guide rollers are threadedly connected to the upper adjusting screw, slidably connected to the guide rod through a sliding sleeve, and suspended on the lower adjusting screw.

[0017] Furthermore, the front end of the automatic centering device is equipped with a fulai roller, which includes a mandrel fixed on the front power roller conveyor frame and a fulai roller sleeved on the mandrel.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. By collecting the quantity information of rubber extruded products through a CCD camera installed at the entrance of the front-end power roller conveyor, the information is transmitted to the central processor to automatically determine whether it is a single-line extrusion product or a double-line extrusion product, thereby controlling the dual-body scale to automatically switch between single and double-line production modes; when the weight of the product weighed by the dual-body scale exceeds the controllable range, the central processor automatically sends an instruction to the marking device to mark the defective products, reducing manual operation and improving production efficiency.

[0020] 2. The dual-body scale is placed between the front and rear power roller conveyors. The power for both the front and rear power roller conveyors on both sides of the dual-body scale is provided by a single geared motor, which ensures the consistency of the speed at which rubber extruded products enter and exit the dual-body scale, avoids the impact of speed fluctuations before and after the dual-body scale, and improves weighing accuracy.

[0021] 3. After the rubber extruded products enter the front-end power roller conveyor, the width and quantity information of the rubber extruded products are collected by the CCD camera. The central processing unit automatically adjusts the width of the inner and outer guide rollers in the automatic centering device to ensure that the rubber extruded products can be correctly placed in the roller conveyor of the corresponding weighing body, thereby improving the stability of continuous weighing of rubber extruded products.

[0022] 4. This utility model has a high degree of automation, which greatly reduces the intensity of operation. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0024] Figure 2 yes Figure 1Top view

[0025] Figure 3 yes Figure 1 Left view after hiding the marking device

[0026] Figure 4 This is a schematic diagram of the automatic centering device according to an embodiment of the present invention.

[0027] Figure 5 yes Figure 4 Sectional view of AA

[0028] Figure 6 yes Figure 4 Sectional view of BB

[0029] Attached diagram labels: 1. Double-body scale; 2. Front-end power roller conveyor; 3. Rear-end power roller conveyor; 4. CCD camera; 5. Marking device; 5. Cylinder; 501. Indentation roller; 502. Automatic centering device; 6. Adjusting screw; 601. Stepper motor; 602. Guide rod; 603. Inner guide roller; 604. Outer guide roller; 605. Sliding sleeve; 606. Drive roller; 7. Rear-end chain; 8. Transition roller A; 9. Transition chain; 10. Transition roller B; 11. Front-end chain; 12. Fulai wheel roller; 13. Inner sprocket; 14. Outer sprocket; 15. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0031] The continuous weighing system for rubber extruded products provided by this utility model, such as... Figure 1 and Figure 2As shown, it includes a dual-body scale 1, which comprises two weighing platforms mounted on a weighing frame for weighing rubber extruded products, and roller conveyors mounted on the two platforms. The dual platforms are connected to a central processing unit. A front-end power roller conveyor 2 and a rear-end power roller conveyor 3 are arranged on both sides of the dual-body scale 1. A CCD camera 4 is installed at the entrance of the front-end power roller conveyor 2, and a marking device 5 for marking rubber products is installed on the rear-end power roller conveyor 3. During the production process, the CCD camera 4 collects the quantity information of the rubber extruded products and transmits it to the central processing unit. The central processing unit can automatically determine whether it is a single extruded product based on the quantity information collected by the CCD camera 4. For products produced by dual-extrusion, the dual-weighing system 1 automatically selects between single-line and dual-line production modes. During continuous dynamic weighing, the weighing instrument on the dual-weighing system 1 displays the weight per meter and cumulative weight of either single-line or dual-line products. The central processing unit can set the baseline and deviation values ​​for the product weight and control the five-color indicator lights on the dual-weighing system 1 to display the product weight status, including overweight, slightly overweight, acceptable, slightly underweight, and underweight. When the product weight exceeds the set deviation value, the central processing unit automatically sends a command to the marking device 5. After receiving the command, the marking device 5 marks a segment on the defective product to facilitate identification and removal of that segment by the operators in the next process.

[0032] It should be noted that the central processing unit described in this utility model is used to control the operating status of the entire rubber extrusion composite production line and is responsible for the control and coordination of the entire production line.

[0033] To ensure consistent speeds of the rubber extruded products entering and exiting the dual-body scale 1, and to avoid the impact of speed fluctuations before and after entering and exiting the dual-body scale 1, such as... Figure 1 and Figure 2As shown, this utility model unifies the power supply of the front power roller conveyor 2 and the rear power roller conveyor 3 located on both sides of the double-body scale 1 to a single geared motor, avoiding the speed difference caused by the front power roller conveyor 2 and the rear power roller conveyor 3 being driven by separate geared motors. Specifically, the rollers on both the front power roller conveyor 2 and the rear power roller conveyor 3 are equipped with inner sprockets 14. At the tail end of the rear power roller conveyor 3, there is an active roller 7 connected to the geared motor. A transition roller A is provided on the rear power roller conveyor 3 near the double-body scale 1. 9. A transition roller B11 is provided near the double-body scale 1 on the front-end power roller conveyor 2. Outer sprockets 15 are also provided on the transition rollers A9 and B11. The inner sprocket 14 of the drive roller 7 is connected to the inner sprocket 14 of the transition roller A9 via the rear chain 8. The outer sprocket 15 of the transition roller A9 is connected to the outer sprocket 15 of the transition roller B11 via the transition chain 10. The inner sprocket 14 of the transition roller B11 is connected to the inner sprocket 14 of the rollers on the front-end power roller conveyor 2 via the front chain 12. During production, the geared motor drives the drive roller 7, which in turn drives the transition roller A9 to rotate via the rear chain 8. The transition roller A9 then drives the transition roller B11 to rotate via the transition chain 10, and the transition roller B11 drives the rollers on the front-end power roller conveyor 2 to rotate via the front chain 12.

[0034] The specific structure of the marking device 5 of this utility model for marking defective products is as follows: Figure 1 and Figure 2 As shown, the marking device 5 includes two marking wheel mechanisms. The marking wheel mechanism includes an indentation roller 502 with spikes and a cylinder 501 connected to the indentation roller 502 via a swing arm. When the weight of the product weighed by the dual-body scale 1 exceeds the set deviation value, the central processing unit sends a command to the cylinder 501. After receiving the command, the cylinder 501 drives the indentation roller 502 to press onto the rubber extruded product via the swing arm, and the spikes of the indentation roller 502 press out a groove-shaped mark on the rubber extruded product.

[0035] To meet the needs of products with multiple specifications, the marking wheel mechanism can move laterally above the rear power roller conveyor 3.

[0036] This utility model is equipped with an automatic centering device 6, such as Figure 1 , Figure 2 , Figure 5 and Figure 6As shown, the automatic centering device 6 is installed at the head of the front-end power roller conveyor 2. The automatic centering device 6 includes two sets of inner guide rollers 604, two sets of outer guide rollers 605, two sets of adjusting screws 601 arranged vertically, and a guide rod 603 located between the upper and lower adjusting screws 601. The adjusting screws 601 are fixed to the frame of the front-end power roller conveyor 2 through bearing seats and connected to the stepper motor 602. The threaded sections on the adjusting screws 601 are symmetrically arranged along the center line. One end of the threaded section is a left-hand thread and the other end is a right-hand thread. The inner guide rollers 604 are threadedly connected to the lower adjusting screws 601, slidably connected to the guide rods 603 through the sliding sleeves 606, and are suspended on the upper adjusting screws 601. The outer guide rollers 605 are threadedly connected to the upper adjusting screws 601, slidably connected to the guide rods 603 through the sliding sleeves 606, and are suspended on the lower adjusting screws 601. After the rubber extruded product enters the front-end power roller conveyor 2 a certain distance, the CCD camera 4 sends the collected product width and quantity information to the central processor. The central processor sends a control signal to the stepper motor 602, which drives the upper adjusting screw 601 or / and the lower adjusting screw 601 to rotate, further driving the inner guide roller 604 or / and the outer guide roller 605 to move laterally, realizing the automatic centering function of the rubber extruded product, ensuring that the rubber extruded product can be correctly placed in the corresponding weighing roller conveyor, and improving the stability of continuous weighing.

[0037] This invention features a fulling roller 13 at the front end of the automatic centering device 6. The fulling roller 13 includes a mandrel fixed to the frame of the front power roller conveyor 2 and a fulling wheel sleeved on the mandrel. Before entering the automatic centering device 6, the rubber extruded product contacts the fulling wheel. The fulling wheel is equipped with a small, laterally rotating roller. During the automatic centering process, this reduces the friction of the rubber extruded product's lateral movement, enabling rapid centering and improving production efficiency.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection," "fixed," "set," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal connection of two components or the interaction between two components, unless otherwise explicitly limited. Furthermore, the terms "left," "right," "upper," "lower," "top," "bottom," "front," "rear," "inner," "outer," "back," "middle," "longitudinal," and "transverse," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0039] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A continuous weighing system for rubber extruded products using a dual-body weighing system, comprising a dual-body weighing system (1), wherein the dual-body weighing system (1) comprises a dual weighing platform mounted on a weighing frame for weighing rubber extruded products, and a roller conveyor disposed on the dual weighing platform, wherein the dual weighing platform is connected to a central processing unit, characterized in that: A front-end power roller conveyor (2) and a rear-end power roller conveyor (3) are provided on both sides of the double-body scale (1). A CCD camera (4) is provided at the entrance of the front-end power roller conveyor (2), and a marking device (5) that can mark marks on rubber products is provided on the rear-end power roller conveyor (3). The CCD camera (4) and the marking device (5) are respectively connected to the central processing unit.

2. The continuous weighing system for rubber extruded products using a dual-body weighing system according to claim 1, characterized in that: Both the front-end power roller conveyor (2) and the rear-end power roller conveyor (3) have inner sprockets (14) on their rollers. The rear-end power roller conveyor (3) has an active roller (7) connected to a geared motor at its tail end. The rear-end power roller conveyor (3) has a transition roller A (9) near the double-body scale (1), and the front-end power roller conveyor (2) has a transition roller B (11) near the double-body scale (1). The transition rollers A (9) and B (11) also have outer sprockets. (15) The inner sprocket (14) of the drive roller (7) is connected to the inner sprocket (14) of the transition roller A (9) via the rear chain (8). The outer sprocket (15) of the transition roller A (9) is connected to the outer sprocket (15) of the transition roller B (11) via the transition chain (10). The inner sprocket (14) of the transition roller B (11) is connected to the inner sprocket (14) of the front power roller conveyor (2) via the front chain (12).

3. The continuous weighing system for rubber extruded products using a dual-body weighing system according to claim 1, characterized in that: The marking device (5) includes two marking wheel mechanisms, which include an indentation roller (502) with spikes and a cylinder (501) connected to the indentation roller (502) via a swing arm.

4. The continuous weighing system for rubber extruded products using a dual-body weighing system according to claim 3, characterized in that: The marking wheel mechanism can move laterally above the rear power roller conveyor (3).

5. The continuous weighing system for rubber extruded products using a dual-body weighing system according to claim 1, characterized in that: An automatic centering device (6) connected to the central processor is provided at the head of the front power roller conveyor (2).

6. The continuous weighing system for rubber extruded products using a dual-body weighing system according to claim 5, characterized in that: The automatic centering device (6) includes two sets of inner guide rollers (604), two sets of outer guide rollers (605), two sets of adjusting screws (601) arranged vertically, and a guide rod (603) located between the upper and lower adjusting screws (601). The adjusting screws (601) are fixed to the frame of the front-end power roller conveyor (2) through bearing seats and connected to a stepper motor (602). The threaded sections on the adjusting screws (601) are symmetrically arranged along the center line. One end of the section has a left-hand thread and the other end has a right-hand thread. The inner guide roller (604) is threaded to the lower adjusting screw (601), slides through the sliding sleeve (606) to the guide rod (603), and is suspended on the upper adjusting screw (601). The outer guide roller (605) is threaded to the upper adjusting screw (601), slides through the sliding sleeve (606) to the guide rod (603), and is suspended on the lower adjusting screw (601).

7. The continuous weighing system for rubber extruded products using a dual-body weighing system according to claim 6, characterized in that: The front end of the automatic centering device (6) is provided with a fulai roller (13), which includes a spindle fixed on the frame of the front power roller conveyor (2) and a fulai roller sleeved on the spindle.

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