Automatic cold roll forming equipment for side plate of radiator

Abstract

The invention discloses automatic cold roll forming equipment for a radiator side plate, and belongs to the technical field of machining. The device comprises a rack and a control device, a feeding mechanism, a cold roll forming mechanism, a leveling mechanism and a blanking mechanism are sequentially arranged at the top end of the rack, a width-adjustable cold bending wheel is arranged on the cold roll forming mechanism, the cold bending wheel rolls in the longitudinal axis direction of a cold bending channel, certain pressure is applied to a material belt, the material belt is gradually bent and deformed, and the material belt is cut into a shape of a flat plate. When cold-bending products of different sizes need to be machined, the width of the cold-bending wheel can be adjusted by adjusting the telescopic length of the telescopic rod, through the design of the adjustable limiting block, the straightening wheel and the cold-bending wheel, the device can adapt to plates of various sizes and shapes, and the universality and production efficiency of the device are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of machining, and more particularly to an automatic equipment for cold bending and forming of radiator side plates. Background Art

[0002] The existing cold bending and forming of metal sheet parts is mainly achieved by gradually rolling and cold bending a strip of material through several sets of roller pressing wheels. When processing sheet parts of each size, different specifications of roller pressing wheel sets need to be equipped. The process of frequently replacing and adjusting the roller pressing wheel sets not only takes time but also increases the equipment downtime, seriously affecting the production efficiency. It is difficult to meet the production requirements of multiple varieties and small batches, resulting in low versatility.

[0003] Therefore, based on the above technical problems, it is necessary to design an automatic equipment for cold bending and forming of radiator side plates. Summary of the Invention

[0004] In view of the deficiencies mentioned in the above technical background, the present invention provides an automatic equipment for cold bending and forming of radiator side plates to solve the above technical problems.

[0005] The object of the present invention can be achieved by the following technical solutions: An automatic equipment for cold bending and forming of radiator side plates includes a frame and a control device. A feeding mechanism, a cold bending and forming mechanism, a leveling mechanism, and a blanking mechanism are sequentially arranged at the top of the frame, and are all electrically connected to the control device. The feeding mechanism includes a guide wheel and a guide channel for driving the strip of material forward. Horizontally adjustable limit blocks are arranged on both the left and right sides of the guide channel, and vertically adjustable straightening wheels are arranged on both the upper and lower sides. The horizontally adjustable limit blocks and the vertically adjustable straightening wheels are both electrically connected to the control device. The cold bending and forming mechanism is internally provided with a cold bending channel connected to the guide channel. A plurality of vertically adjustable auxiliary wheels are arranged on the upper surface of the cold bending channel. The auxiliary wheels are rotatably mounted on the cold bending and forming mechanism through connecting rods, and are externally tangent to the upper surface of the cold bending channel. Horizontally adjustable cold bending wheels are arranged on both the left and right sides of the cold bending channel. The cold bending wheels are rotatably mounted on telescopic rods, and the telescopic rods are slidably arranged on the sliding tracks on the inner wall of the cold bending and forming mechanism on the side far away from the cold bending wheels. The cold bending wheels and the telescopic rods are both electrically connected to the control device. The leveling mechanism includes a plurality of vertically adjustable upper straightening roller wheels and lower straightening roller wheels rotatably mounted on the frame. The upper straightening roller wheels and the lower straightening roller wheels are arranged alternately and are both electrically connected to the control device. One upper straightening roller wheel is arranged above two adjacent lower straightening roller wheels, and a leveling channel is formed between the upper straightening roller wheels and the lower straightening roller wheels for the strip of material to pass through. The blanking mechanism is successively provided with a punching angle mechanism for punching an oblique angle on the cold bending and forming part of the strip and a punching and cutting mechanism for punching and cutting the strip along the conveying direction of the strip. The punching angle mechanism and the punching and cutting mechanism are both slidably arranged on the slide rails on the frame through sliders. The sliders are electrically connected to the control device. The sliding speeds of the punching angle mechanism and the punching and cutting mechanism along the strip conveying direction on the slide rails are consistent with the feeding speed of the feeding mechanism.

[0006] As a preferred technical solution of the present invention, guiding bevels are provided at both the input end and the output end of the horizontal limiting block, and the angle of the guiding bevel is 30° - 60°.

[0007] As a preferred technical solution of the present invention, the horizontal limiting block is composed of several groups of limiting wheels. The limiting wheels are externally tangent to the guiding channel. There are several groups of straightening wheels. Starting from the straightening wheel group on the side close to the input end of the feeding mechanism and ending with the straightening wheel group on the side close to the output end of the feeding mechanism, the distance between every two of the straightening wheels in each group decreases successively.

[0008] As a preferred technical solution of the present invention, the cold bending channel includes several rollers and a conveyor belt. The conveyor belt is formed by hinging several steel sheets. The rollers are arranged at equal intervals inside the conveyor belt and are installed in the cold bending and forming mechanism through transmission shafts. The rollers are electrically connected to the control device.

[0009] As a preferred technical solution of the present invention, the rotation axis of the cold bending wheel is inclined at an angle α with respect to the plane of the cold bending channel. The outer periphery of the cold bending wheel is an arc-shaped interface. The cold bending wheel is electrically connected to the control device.

[0010] As a preferred technical solution of the present invention, the longitudinal axis of the slideway is inclined at an angle θ with respect to the longitudinal axis of the cold bending channel. The angle θ satisfies the following relational expression:

[0011] In the formula, h is the cold bending height of the side plate of the radiator, and L is the length of the slideway.

[0012] As a preferred technical solution of the present invention, the width b1 of the upper straightening roller is greater than the width b2 of the side plate of the radiator, and the width b3 of the lower straightening roller is less than the width b2 of the side plate of the radiator minus twice the thickness t of the strip, satisfying the following relational expressions: b1 > b2; b3 < b2 - 2t.

[0013] As a preferred technical solution of the present invention, a unwinding mechanism is provided at the input end of the feeding mechanism, and a Hall sensor for detecting the number of unwound turns of the strip is arranged on the unwinding mechanism; an output end of the blanking mechanism is provided with a discharging mechanism for storing the processed radiator side plates.

[0014] As a preferred technical solution of the present invention, the corner punching mechanism includes a first machine base. Along the conveying direction of the strip, a first clamping device and a side punching device are sequentially arranged on the first machine base. The first clamping device includes two first clamping structures for clamping the strip and a first clamping driving device for driving the two first clamping structures to lift and move horizontally together. The side punching device includes a side punch head and a side punch head driving device for driving the side punch head to move horizontally. The side punch head is used for punching an oblique angle on the cold bending forming part of the strip. The first clamping driving device and the side punch head driving device are both electrically connected to the control device; The blanking-off mechanism includes a second machine base. Along the conveying direction of the strip, a second clamping device and a blanking-off device are sequentially arranged on the second machine base. The second clamping device includes two second clamping structures for clamping the strip and a second clamping driving device for driving the two second clamping structures to lift and move horizontally together. The blanking-off device includes a blanking-off head and a blanking-off head driving device for driving the blanking-off head to move vertically. The blanking-off head is used for punching and cutting off the strip. The second clamping driving device and the blanking-off head driving device are both electrically connected to the control device; The first machine base and the second machine base are slidably arranged on the slide rail through the sliders.

[0015] In summary, the beneficial effects of the present invention are as follows: The present invention replaces a group of cold bending wheels with adjustable widths with multiple groups of roller pressing wheels in the traditional processing method, solves the problems in the traditional technology that different specifications of roller pressing wheel sets need to be equipped when processing plates of different sizes, which is time-consuming and has poor versatility. According to the forming size requirements of the plate, the width of the cold bending wheels, the distance between the auxiliary wheels and the cold bending channel are adjusted, so as to realize the cold bending forming treatment of strips of various specifications without frequently replacing the roller pressing wheel sets, making the strip more conform to the predetermined shape requirements during the cold bending forming process. Compared with the traditional method, the present invention can reduce the forming defects of the plate caused by the incomplete matching of the specifications of the roller pressing wheel sets, such as inaccurate bending angles and uneven edges, thereby improving the quality stability and consistency of the product.

[0016] In addition, in the present invention, both the punching angle mechanism and the punching and cutting mechanism are arranged to slide on the slideway, and the control device makes their sliding speeds consistent with the feeding speed of the feeding mechanism, so that the strip does not need to stop and wait for the processing of the punching and cutting mechanism during the whole processing process, enabling the whole processing process to proceed continuously, greatly shortening the processing cycle of a single product; since the strip does not need to be frequently stopped and started, the whole production process is more stable, the fluctuation of the production rhythm is smaller, the connection between each process is smoother, and the continuous processing method avoids the deformation caused by inertia force, and at the same time reduces the wear and scratches and other damages of the strip during the stop and start process, thereby improving the dimensional accuracy and shape accuracy of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a cross-sectional view of the automatic equipment for cold bending and forming the side plate of the radiator of the present invention; Figure 2 is Figure 1 a partially enlarged view of Figure 3 is a movement locus diagram of the cold bending wheel of the present invention; Figure 4 is a top view of the automatic equipment for cold bending and forming the side plate of the radiator of the present invention; Figure 5 is a schematic diagram of the included angle α between the cold bending wheel and the cold bending channel of the present invention; Figure 6 is a schematic diagram of the upper straightening roller wheel and the lower straightening roller wheel of the present invention; Wherein, 1 - frame, 2 - feeding mechanism, 3 - cold bending and forming mechanism, 31 - cold bending channel, 32 - cold bending wheel, 33 - auxiliary wheel, 34 - slideway, 35 - connecting rod, 36 - telescopic rod, 4 - leveling mechanism, 41 - upper straightening roller wheel, 42 - lower straightening roller wheel, 5 - punching and cutting mechanism, 51 - punching angle mechanism, 52 - punching and cutting mechanism, 53 - slider, 6 - strip, 7 - unwinding mechanism. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following will describe in detail the specific embodiments of the present invention with reference to the accompanying drawings. It should be understood that the specific embodiments given here are only used to illustrate and explain the present invention and cannot be used to limit the present invention.

[0019] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also have other embodiments and its variations, and therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below.

[0020] Such as Figures 1 to 6As shown in the figure, an automatic equipment for cold bending forming of the side plate of a radiator according to the present invention includes a frame 1 and a control device. A feeding mechanism 2, a cold bending forming mechanism 3, a leveling mechanism 4, and a blanking mechanism 5 are sequentially arranged at the top of the frame 1, and are all electrically connected to the control device. The feeding mechanism 2 includes guide wheels and a guide channel for driving the strip 6 to move forward. Horizontal limit blocks with adjustable widths are arranged on the left and right sides of the guide channel, and straightening wheels with adjustable heights are arranged on the upper and lower sides. Both the horizontal limit blocks and the straightening wheels are electrically connected to the control device. The guide wheels can be flexibly arranged at the output end or the input end of the guide channel. The specific position selection needs to be comprehensively considered according to the actual feeding process and equipment layout. The strip 6 is accurately driven to move forward smoothly and continuously along a predetermined path through the static friction between the guide wheels and the strip 6, thereby ensuring the stability and accuracy of the material during transportation and providing a strong guarantee for subsequent processing.

[0021] A cold bending channel 31 connected to the guide channel is arranged inside the cold bending forming mechanism 3. A plurality of auxiliary wheels 33 with adjustable heights are arranged on the upper surface of the cold bending channel 31. The auxiliary wheels 33 are rotatably installed on the cold bending forming mechanism 3 through connecting rods 35, and the auxiliary wheels 33 are externally tangent to the upper surface of the cold bending channel 31. Cold bending wheels 32 with adjustable widths are arranged on the left and right sides of the cold bending channel 31. The cold bending wheels 32 are rotatably installed on the telescopic rods 36. The telescopic rods 36 are slidably arranged on the slideways 34 on the inner wall of the cold bending forming mechanism 3 away from the cold bending wheels 32. Both the cold bending wheels 32 and the telescopic rods 36 are electrically connected to the control device. The cold bending channel 31 not only provides guidance for the forward movement of the strip 6, but also provides a uniform supporting force for the strip 6 during its movement to complete the cold bending forming operation. The strip 6 is gradually bent under the action of the cold bending wheels 32. The supporting force of the cold bending channel 31 ensures that the strip 6 will not have excessive local deformation or distortion during the bending process. The cold bending channel 31 and the cold bending wheels 32 work together to ensure the stability of the strip 6 during the cold bending process and reduce the rejection rate during production. Among them, the shape and size of the cold bending channel 31 are designed according to the shape and size of the cold bending product to be produced, and it provides a stable space environment for the cold bending forming of the strip 6.

[0022] The auxiliary wheels 33 cooperate with the cold bending channel 31 to provide a stable clamping force for the strip 6, keep the strip 6 stable during the forward movement, and avoid problems such as shaking and deviation of the strip 6, so that the deformation of the strip 6 during the cold bending process is more uniform. The distance between the auxiliary wheels 33 and the cold bending channel 31 is adjusted according to the thickness and material characteristics of the strip 6, and appropriate constraints are provided according to these characteristics of the strip 6, so that strips 6 of various materials can maintain a good state during the cold bending process.

[0023] The cold bending wheels 32 are located on the left and right sides of the cold bending channel 31. When the control device drives the telescopic rod 36 to slide along the slideway 34, the cold bending wheels 32 will roll along the longitudinal axis direction of the cold bending channel 31. Since the outer periphery of the cold bending wheels 32 contacts the strip 6, during the rolling process, the cold bending wheels 32 will apply a certain pressure to the strip 6, causing the strip 6 to gradually bend and deform until the cold bending operation is completed. The width between the cold bending wheels 32 is adjustable, and the adjustment is based on the forming size of the strip 6. When it is necessary to process strips 6 with different widths or produce cold bent products with different shapes, the control device adjusts the distance between the cold bending wheels 32 according to the preset parameters, mainly by adjusting the telescopic length of the telescopic rod 36 to complete the adjustment of the width of the cold bending wheels 32, that is, the distance between the cold bending wheels 32. Therefore, the adjustable width characteristic makes the cold bending forming mechanism 3 highly versatile, adaptable to various strips 6 of different specifications, without the need to replace the dedicated cold bending wheels 32 for each strip 6 size, reducing the production cost and the time cost of equipment replacement. When producing cold bent products with different shapes, the distance between the cold bending wheels 32 can be flexibly adjusted, and the bending degree of the strip 6 can be accurately controlled, thereby improving the product quality.

[0024] The telescopic rod 36 slides in the slideway 34 in a predetermined direction, and the slideway 34 provides an accurate guiding function for it. Through the cooperation with the slideway 34, the movement trajectory of the cold bending wheels 32 can be accurately controlled, realizing the precise control of the cold bending forming of the strip 6.

[0025] The leveling mechanism 4 includes a plurality of upper leveling roller wheels 41 and lower leveling roller wheels 42 that are height-adjustable and rotatably installed on the frame 1. The upper leveling roller wheels 41 and the lower leveling roller wheels 42 are arranged staggeredly and are both electrically connected to the control device. Above two adjacent lower leveling roller wheels 42 is an upper leveling roller wheel 41. A leveling channel is formed between the upper leveling roller wheels 41 and the lower leveling roller wheels 42 for the strip 6 to pass through; A plurality of roller wheels are arranged in sequence to form a leveling channel. During the process of passing through the leveling channel, the strip 6 undergoes multiple leveling operations by the upper and lower roller wheels. The distance between the adjacent lower leveling roller wheels 42 and the upper leveling roller wheels 41 is relatively short, and the strip 6 will be leveled on the upper and lower surfaces once within a relatively short distance. This step-by-step progressive leveling method can more finely adjust the flatness of the strip 6. Compared with a single leveling operation, it can more thoroughly eliminate the unevenness of the strip 6 and improve the leveling accuracy. The upper leveling roller wheels 41 and the lower leveling roller wheels 42 are height-adjustable, enabling the leveling mechanism 4 to adapt to strips 6 of different thicknesses. In a production line for producing strips 6 of various specifications, there is no need to replace the leveling mechanism 4, and only by adjusting the height of the roller wheels can the leveling requirements of strips 6 of different thicknesses be met.

[0026] The blanking mechanism 5 is successively provided with a punching angle mechanism 51 for punching an oblique angle on the cold bending and forming part of the strip 6 and a punching and cutting mechanism 52 for punching and cutting the strip 6 along the conveying direction of the strip 6. Both the punching angle mechanism 51 and the punching and cutting mechanism 52 are slidably arranged on the slide rails on the frame 1 through sliders 53. The sliders 53 are electrically connected to the control device. The sliding speeds of the punching angle mechanism 51 and the punching and cutting mechanism 52 along the conveying direction of the strip 6 on the slide rails are the same as the feeding speed of the feeding mechanism 2.

[0027] In the traditional technology, the strip 6 often needs to stop at the blanking mechanism 5 and wait for the blanking operation to be completed before moving forward. The frequent stop and start of the strip 6 will generate inertial forces, resulting in unnecessary deformation of the strip 6 during the blanking process, leading to unstable production rhythm, affecting the arrangement of subsequent processes, poor blanking accuracy, and serious equipment wear. In the present invention, both the punching angle mechanism 51 and the punching and cutting mechanism 52 slide on the slide rails, and the sliding speed is the same as the feeding speed of the feeding mechanism 2, realizing that the strip 6 does not need to stop and wait for the processing of the blanking mechanism 5 during the whole processing process, so that the whole processing process can be carried out continuously, greatly shortening the processing cycle of a single product; since there is no need to frequently stop and start the strip 6, the whole production process is more stable, the fluctuation of the production rhythm is smaller, the connection between each process is smoother, and the continuous processing method avoids this kind of deformation caused by inertial forces, and at the same time reduces the wear and scratches and other damages of the strip 6 during the stop and start process, thereby improving the dimensional accuracy and shape accuracy of the product.

[0028] As a preferred embodiment of the present invention, guiding chamfers are provided at both the input end and the output end of the horizontal limiting block, and the angle of the guiding chamfer is 30° - 60°.

[0029] The guiding chamfer can guide the strip 6 to smoothly enter the horizontal limiting block and prevent the strip 6 from getting stuck or offset when entering. When the strip 6 is conveyed from the upstream equipment, the guiding chamfer at the input end can help the strip 6 accurately align with the entrance of the horizontal limiting block, enabling the strip 6 to smoothly enter the inside of the limiting block and reducing the friction and wear of the strip 6 during the entering process; the guiding chamfer at the output end can guide the strip 6 to smoothly leave the horizontal limiting block, ensuring that the strip 6 can continue to be conveyed in the predetermined direction after leaving the limiting block and preventing the strip 6 from getting stuck or deviating from the predetermined path when leaving.

[0030] As a preferred embodiment of the present invention, the horizontal limiting block is composed of several groups of limiting wheels, and the limiting wheels are tangent to the outside of the guiding channel. There are several groups of straightening wheels. Starting from the straightening wheel group on the side close to the input end of the feeding mechanism 2 to the straightening wheel group on the side close to the output end of the feeding mechanism 2, the distance between each two straightening wheels in each group decreases in turn.

[0031] Since the spacing between every two straightening wheels in each group decreases successively, a progressive straightening process is formed from the input end to the output end of the feeding mechanism 2. When the strip 6 enters the straightening wheel group, the relatively large spacing at the beginning can adapt to the initial bending state of the strip 6, avoid excessive extrusion of the strip 6 and cause damage, make the contact between the strip 6 and the straightening wheels relatively gentle, and reduce the impact force of the strip 6 on the straightening wheels; as the strip 6 advances, the straightening wheel group with gradually decreasing spacing can gradually increase the straightening force on the strip 6, effectively eliminate the bending deformation of the strip 6, improve the straightening effect. Secondly, the change in the acting force between the strip 6 and the straightening wheels is also stable, which helps to protect the straightening wheels and reduce the wear of the straightening wheels. The setting of the successively decreasing spacing of the straightening wheels can adapt to strips 6 with various bending degrees. If the bending degree of the strip 6 is large, it can be initially straightened in the straightening wheel group with a relatively large initial spacing, and for the strip 6 with a relatively small bending degree, the entire straightening process can also play a role in fine adjustment. There is no need to frequently adjust the parameters of the straightening equipment for strips 6 with different bending degrees, which improves the versatility and production efficiency of the equipment.

[0032] As a preferred embodiment of the present invention, the cold bending channel 31 includes a plurality of rollers and a conveyor belt. The conveyor belt is formed by hinging a plurality of steel sheets. The rollers are arranged equidistantly in the conveyor belt and are installed in the cold bending forming mechanism 3 through a transmission shaft. The rollers are electrically connected to the control device.

[0033] The control device drives the transmission shaft to rotate, and then drives the rollers to drive the conveyor belt to move. The equidistant arrangement of the rollers in the conveyor belt helps to apply a uniform force to the strip 6, so that the strip 6 deforms uniformly during the cold bending forming process. The rotation speed of the rollers is adjusted according to the movement and cold bending requirements of the strip 6 to ensure appropriate supporting force and friction force are applied to the conveyor belt.

[0034] As a preferred embodiment of the present invention, the rotation axis of the cold bending wheel 32 is inclined at an angle α with respect to the plane of the cold bending channel 31. The outer periphery of the cold bending wheel 32 is an arc-shaped interface. The cold bending wheel 32 is electrically connected to the control device.

[0035] The control device adjusts the inclination angle α of the rotation axis of the cold bending wheel 32 relative to the plane of the cold bending channel 31, which can change the contact position between the strip 6 and the outer circumferential arc-shaped interface of the cold bending wheel 32. The change in the inclination angle α of the rotation axis of the cold bending wheel 32 will cause changes in the position and attitude of the cold bending wheel 32 in the cold bending channel 31, thereby changing the geometric relationship between the strip 6 and the cold bending wheel 32. Specifically, when the inclination angle α increases, the contact point between the outer circumferential arc-shaped interface of the cold bending wheel 32 and the strip 6 will move to one side of the cold bending wheel 32; conversely, when the inclination angle α decreases, the contact point will move to the other side. This change can be precisely adjusted by the control device to achieve precise control of the position of the strip 6 in the cold bending channel 31. If the contact point moves too much to one side, the force on the strip 6 on the cold bending wheel 32 will be uneven, the force eccentricity will be too large, resulting in excessive local deformation, excessive stretching or compression of the material, and even cracks or wrinkles, affecting the mechanical properties and surface quality of the material.

[0036] The contact position between the strip 6 and the arc-shaped interface is preferably within the range of 20%S on both sides of the center line of the arc-shaped interface, where S is the arc length of the arc-shaped interface. When the contact position between the strip 6 and the arc-shaped interface is within the range of 20%S on both sides of the center line, it can ensure that the force on the strip 6 on the cold bending wheel 32 is more uniform, the contact point of the strip 6 on the cold bending wheel 32 is relatively stable, thereby reducing local stress concentration, avoiding excessive deformation or damage of the material, and reducing the forming error caused by excessive change in the contact position.

[0037] As a preferred embodiment of the present invention, the inclination angle θ of the longitudinal axis of the slideway 34 relative to the longitudinal axis of the cold bending channel 31 satisfies the following relational expression:

[0038] In the formula, h is the cold bending height of the radiator side plate, and L is the length of the slideway 34.

[0039] The angle θ determines the rolling path of the cold bending wheel 32 relative to the cold bending channel 31. By controlling the angle θ within a reasonable range, it can ensure that during the process of the strip 6 advancing on the cold bending channel 31, the cold bending wheel 32 bends the strip 6 evenly and sequentially.

[0040] As a preferred embodiment of the present invention, the width b1 of the upper straightening roller 41 is greater than the width b2 of the radiator side plate, and the width b3 of the lower straightening roller 42 is less than the width b2 of the radiator side plate minus twice the thickness t of the strip 6, satisfying the following relational expressions: b1>b2; b3<b2 - 2t.

[0041] The width b1 of the upper straight roller 41 is greater than the width b2 of the radiator side plate, completely covering the radiator side plate area and the surrounding part of the strip 6. When the strip 6 has edge bending or local deformation, the wider upper straight roller 41 can straighten the side plate and the surrounding area as a whole, avoiding the situation of only straightening the middle part of the side plate while ignoring the edge part, thereby improving the comprehensiveness and effect of straightening; the width b3 of the lower straight roller 42 is less than the width b2 of the radiator side plate minus twice the thickness t of the strip 6. The narrower design of the lower straight roller 42 can prevent excessive extrusion of the edge of the strip 6 (especially the edge part of the radiator side plate), avoiding excessive deformation or wrinkling of the strip 6 at the edge part of the side plate and protecting the shape integrity of the strip 6 edge and the radiator side plate.

[0042] As a preferred embodiment of the present invention, a unwind mechanism 7 is provided at the input end of the feeding mechanism 2, and a Hall sensor for detecting the unwind turns of the strip 6 is arranged on the unwind mechanism 7; an output mechanism is provided at the output end of the blanking mechanism 5 for receiving the processed radiator side plates.

[0043] As a preferred embodiment of the present invention, the corner punching mechanism 51 includes a first machine base. Along the conveying direction of the strip 6, a first clamping device and a side punching device are sequentially arranged on the first machine base. The first clamping device includes two first clamping structures for clamping the strip 6 and a first clamping driving device for driving the two first clamping structures to lift and move horizontally together. The side punching device includes a side punch head and a side punch head driving device for driving the side punch head to move horizontally. The side punch head is used for punching an oblique angle on the cold bending forming part of the strip 6. The first clamping driving device and the side punch head driving device are both electrically connected to the control device; The two first clamping structures lift and move horizontally together under the action of the first clamping driving device. When the strip 6 is conveyed to a suitable position, the first clamping driving device drives the two first clamping structures to clamp the strip 6 to fix the strip 6, preventing the strip 6 from shifting during the subsequent side punching operation and ensuring the accuracy of side punching; the side punch head driving device drives the side punch head to punch an oblique angle at a specific position of the strip 6 with appropriate force and speed according to the instruction of the control device; The blanking mechanism 52 includes a second machine base. Along the conveying direction of the strip 6, a second clamping device and a blanking device are sequentially arranged on the second machine base. The second clamping device includes two second clamping structures for clamping the strip 6 and a second clamping driving device for driving the two second clamping structures to lift and move horizontally together. The blanking device includes a blanking head and a blanking head driving device for driving the blanking head to move vertically. The blanking head is used for punching holes and cutting the strip 6. The second clamping driving device and the blanking head driving device are both electrically connected to the control device; The two second clamping structures are driven by the second clamping driving device to lift and horizontally move together. When the strip 6 reaches the corresponding position of the punching and cutting mechanism 52, the second clamping structure clamps the strip 6, providing stable fixation of the strip 6 for subsequent punching and cutting operations. The punching head moves vertically under the drive of the punching head driving device, and its task is to punch and cut the strip 6. After the strip 6 is clamped by the second clamping device, the punching head driving device drives the punching head to accurately perform punching and cutting operations on the strip 6 according to the instructions of the control device.

[0044] The first machine base and the second machine base are slidably arranged on the slide rail through the slider 53.

[0045] The first machine base and the second machine base are slidably arranged on the slide rail through the slider 53, enabling the punching angle mechanism 51 and the punching and cutting mechanism 52 to adjust their positions on the slide rail. This facilitates adjusting the positions of the punching angle mechanism 51 and the punching and cutting mechanism 52 relative to the strip 6 according to different production requirements, and has strong adaptability for processing strips 6 of different specifications or different technological processes, improving the flexibility and adaptability of the equipment.

[0046] Working principle of the automatic equipment for cold bending forming of the radiator side plate of the present invention: The unwinding mechanism 7 unwinds the strip 6. The Hall sensor detects the number of turns of the rotating end of the servo motor in the unwinding mechanism 7 to correspond to the number of turns of the strip 6 being unwound. The unwound strip 6 is conveyed to the feeding mechanism 2. The static friction force generated between the guide wheel and the strip 6 drives the strip 6 to move smoothly and continuously along the established path on the guide channel. The distance between the limit wheels on the left and right sides of the guide channel is adjusted according to the width of the strip 6, and the height of the straightening wheels on the upper and lower sides of the guide channel is adjusted according to the thickness of the strip 6. The strip 6 is gradually straightened by several groups of straightening wheel sets, and the straightening force on the strip 6 is gradually increased to effectively eliminate the bending deformation of the strip 6. The strip 6 after the straightening treatment enters the cold bending channel 31 in the cold bending forming mechanism 3. Multiple auxiliary wheels 33 cooperate with the cold bending channel 31 to provide a stable clamping force on the strip 6 to keep the strip 6 stable during the forward movement. When the strip 6 advances in the channel, the control device drives the telescopic rod 36 to slide along the slideway 34, and then drives the cold bending wheel 32 to roll along the longitudinal axis direction of the cold bending channel 31. The outer circumference of the cold bending wheel 32 always contacts the strip 6. During the rolling process, the cold bending wheel 32 applies a certain pressure to the strip 6 to make the strip 6 gradually bend and deform until the cold bending operation is completed. Among them, the longitudinal axis of the slideway 34 is inclined at an angle θ relative to the longitudinal axis of the cold bending channel 31. The angle θ determines the rolling path of the cold bending wheel 32 relative to the cold bending channel 31. The angle θ is controlled within a reasonable range to ensure that the strip 6 is evenly and sequentially cold bent and flanged during the forward movement on the cold bending channel 31. The strip 6 after the cold bending operation enters the leveling mechanism 4, and the non-cold bent part of the strip 6 is leveled by multiple upper and lower rollers. The blanking mechanism 5 sequentially performs the processes of punching bevels, punching holes, and cutting on the strip 6, and finally completes the processing of the radiator side plate. Among them, the blanking mechanism 5 slides on the slide rail, and the sliding speed is the same as the feeding speed of the feeding mechanism 2, so that the strip 6 does not need to stop and wait for the processing of the blanking mechanism 5 during the whole processing process, and the whole processing process is carried out continuously, and the dimensional accuracy and shape accuracy of the product are better.

[0047] It should be understood that the above embodiments are one or more embodiments of the present invention. Based on the present invention, there are many other embodiments and their deformations. When ordinary technicians in this industry do not make pioneering innovations, the deformations and modifications made through the present invention all fall within the protection scope of the present invention.

Claims

1. An automatic equipment for cold bending forming of radiator side plates, characterized in that: It comprises a frame and a control device, wherein a feeding mechanism, a cold bending forming mechanism, a flattening mechanism and a punching mechanism which are electrically connected to the control device are sequentially arranged on the top of the frame; The feeding mechanism includes a guide wheel and a guide channel for driving the material belt to move forward, and the left and right sides of the guide channel are provided with horizontal limit blocks with adjustable width, and the upper and lower sides are provided with straightening wheels with adjustable height, and the horizontal limit blocks and the straightening wheels are both electrically connected to the control device; The cold-bending forming mechanism is provided with a cold-bending channel connected with the guide channel, and the upper surface of the cold-bending channel is provided with a plurality of auxiliary wheels with adjustable heights, and the auxiliary wheels are rollably mounted on the cold-bending forming mechanism through connecting rods, and the auxiliary wheels are tangent to the outer surface of the upper surface of the cold-bending channel; the left and right sides of the cold-bending channel are provided with cold-bending wheels with adjustable widths, and the cold-bending wheels are rollably mounted on telescopic rods, and the side of the telescopic rod away from the cold-bending wheels is slidably arranged on a slideway on the inner wall of the cold-bending forming mechanism, and the cold-bending wheels and the telescopic rod are both electrically connected to the control device; The flattening mechanism is used to flatten the material strip that has been cold-bent; The punching mechanism is provided with a punching mechanism for punching an angle on the cold-bent part of the material strip and a breaking mechanism for punching and cutting the material strip in sequence along the conveying direction of the material strip. The punching mechanism and the breaking mechanism are both slidably arranged on a slide rail on the frame through a slider, and the slider is electrically connected to the control device. The sliding speed of the punching mechanism and the breaking mechanism on the slide rail along the conveying direction of the material strip is consistent with the feeding speed of the feeding mechanism.

2. The automatic equipment for cold bending and forming of the side plate of a radiator according to claim 1, characterized in that: The leveling mechanism includes a plurality of upper straightening rollers and lower straightening rollers which are height-adjustable and rotatably mounted on the frame. The upper straightening rollers and the lower straightening rollers are alternately arranged and are electrically connected to the control device. An upper straightening roller is located above two adjacent lower straightening rollers, and a leveling channel is formed between the upper straightening rollers and the lower straightening rollers for the feeding belt to pass through.

3. An automatic equipment for cold bending and forming of a radiator side plate according to claim 1, characterized in that: The input end and the output end of the horizontal limit block are both provided with guide grooves, and the angle of the guide grooves is 30° to 60°.

4. The automatic equipment for cold bending and forming of the side plate of a radiator according to claim 1, characterized in that: The horizontal limit block is composed of several groups of limit wheels, which are tangent to the outside of the guide channel. The straightening wheels are provided in several groups, starting with the straightening wheel group close to the input end of the feeding mechanism and ending with the straightening wheel group close to the output end of the feeding mechanism, and the distance between the two straightening wheels in each group decreases successively.

5. The automatic equipment for cold bending and forming of the side plate of a radiator according to claim 1, characterized in that: The cold bending channel includes a plurality of rollers and a conveyor belt. The conveyor belt is formed by hingedly connecting a plurality of steel sheets. The rollers are arranged at equal intervals in the conveyor belt and are installed in the cold bending forming mechanism through a transmission shaft. The rollers are electrically connected to the control device.

6. The automatic equipment for cold bending and forming of the radiator side plate according to claim 1, characterized in that: The rotation axis of the cold bending wheel is inclined at an angle α relative to the plane of the cold bending channel, the outer periphery of the cold bending wheel is an arc-shaped interface, and the cold bending wheel is electrically connected to the control device.

7. An automatic equipment for cold bending and forming of a radiator side plate according to claim 1, characterized in that: The longitudinal axis of the slideway is inclined at an angle θ relative to the longitudinal axis of the cold-bent channel, and the angle θ satisfies the following relationship: Wherein, h is the cold bending height of the side plate of the radiator, and L is the length of the slideway.

8. An automatic equipment for cold bending forming of a radiator side plate according to claim 2, characterized in that: The width b1 of the upper straightening roller is greater than the width b2 of the radiator side plate, and the width b3 of the lower straightening roller is less than the width b2 of the radiator side plate minus twice the thickness t of the strip, satisfying the following relational expressions: b1 > b2; b3 < b2 - 2t.

9. An automatic equipment for cold bending and forming of a radiator side plate according to claim 1, wherein: A unwinding mechanism is provided at the input end of the feeding mechanism, and a Hall sensor for detecting the number of unwound turns of the strip is arranged on the unwinding mechanism; an unloading mechanism is provided at the output end of the blanking mechanism for accommodating the processed radiator side plates.

10. An automatic equipment for cold bending and forming of a radiator side plate according to claim 1, characterized in that: The corner punching mechanism includes a first machine base. Along the conveying direction of the strip, a first clamping device and a side punching device are sequentially arranged on the first machine base. The first clamping device includes two first clamping structures for clamping the strip and a first clamping driving device for driving the two first clamping structures to move up and down and horizontally together. The side punching device includes a side punch head and a side punch head driving device for driving the side punch head to move horizontally. The side punch head is used for punching an oblique angle on the cold bending and forming part of the strip. The first clamping driving device and the side punch head driving device are both electrically connected to the control device; The blanking mechanism includes a second machine base. Along the conveying direction of the strip, a second clamping device and a blanking device are sequentially arranged on the second machine base. The second clamping device includes two second clamping structures for clamping the strip and a second clamping driving device for driving the two second clamping structures to move up and down and horizontally together. The blanking device includes a blanking head and a blanking head driving device for driving the blanking head to move vertically. The blanking head is used for punching and cutting the strip. The second clamping driving device and the blanking head driving device are both electrically connected to the control device; The first machine base and the second machine base are slidably arranged on the slide rail through the sliders.

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