LED patch support automatic material changing and conveying device and injection molding equipment

Abstract

The present application relates to the technical field of LED patch support processing, and discloses an automatic material changing and conveying device for LED patch support and injection molding equipment. The automatic material changing and conveying device for LED patch support comprises a rack, a material feeding mechanism, a material collecting mechanism and a control device. The material feeding mechanism and the material collecting mechanism are arranged on the rack. The material feeding mechanism comprises a material feeding reel and a material feeding turntable. The material collecting mechanism comprises a material collecting reel and a material collecting turntable. The material feeding reel is used to drive the rotation of a to-be-processed material tape reel with a volume greater than a preset material tape volume. The material feeding turntable is used to receive a remaining to-be-processed material tape reel with a volume less than or equal to the preset material tape volume after the to-be-processed material tape reel is fed for multiple times. The material feeding turntable drives the rotation of the remaining to-be-processed material tape reel to further feed the material. When the material feeding turntable is working, the material feeding reel can receive a new to-be-processed material tape reel to be driven to start a new round of material feeding. The present application has the advantages of high production efficiency and stable product quality in the processing of LED patch support.

Description

[0001] This invention is a divisional application of the invention patent application filed on March 4, 2025, entitled "LED Patch Bracket Conveying Device and LED Patch Bracket Injection Molding Equipment", with application number 2025102464206. Technical Field

[0002] This invention relates to the field of LED chip bracket processing technology, and in particular to an automatic material changing and conveying device and injection molding equipment for LED chip brackets. Background Technology

[0003] The LED bracket is the base for LED chips before encapsulation. The LED chip is fixed on the LED bracket, and then the positive and negative electrodes are soldered on and then sealed with glue.

[0004] LED brackets typically include through-hole brackets, piranha brackets, and surface mount brackets. SMD LED brackets are generally manufactured through processes such as stamping, electroplating, injection molding, die-cutting, and packaging. During injection molding, a single-reel unloading machine is usually required. This type of machine requires stopping when changing materials after unloading from the single reel, which not only reduces work efficiency but also causes the rubber to age and yellow due to prolonged time spent on the screw during downtime. This necessitates remelting and re-injection, resulting in material waste and inconsistent product quality.

[0005] Therefore, there is an urgent need to provide an automatic material changing and conveying device and injection molding equipment for LED chip brackets that can improve production efficiency and product quality. Summary of the Invention

[0006] In view of this, embodiments of the present invention provide an automatic material changing and conveying device for LED chip brackets and an injection molding equipment to solve the technical problems of low production efficiency and unstable product quality in the processing of LED chip brackets in the prior art.

[0007] In a first aspect, embodiments of the present invention provide an automatic material changing and conveying device for LED chip brackets, comprising: a frame; a feeding mechanism disposed on the frame, including a feeding reel and a feeding turntable, the feeding reel being used to drive a roll of material to be processed that has a quantity greater than a preset material amount to rotate, a plurality of LED chip brackets being formed on the material to be processed, the feeding turntable being used to receive the remaining roll of material to be processed and to feed material further, during the feeding process, the LED chip brackets are processed in batches in a predetermined quantity, and when the feeding turntable is working, the feeding reel can receive a new roll of material to be processed in order to drive a new roll of material to be processed, thereby performing a new round of feeding; and a receiving mechanism disposed on the frame, used to wind the processed material, the wound processed material being wound into a processed material roll.

[0008] Furthermore, the strip roll to be processed, which is larger than the preset amount of strip, is rotated under the drive of the unloading reel to release the strip for feeding. The strip roll to be processed is formed by winding the strip multiple times. The remaining strip roll to be processed is obtained by feeding the strip roll multiple times and satisfying that it is less than or equal to the preset amount of strip. The unloading turntable drives the remaining strip roll to rotate to further release the strip for feeding. The processed strip is formed after the LED chip bracket on the strip to be processed has been processed. The receiving mechanism includes a receiving reel and a receiving turntable. The receiving reel is used to wind the processed strip to obtain a processed strip roll. When the processed strip roll reaches the preset winding amount, the processed strip is cut off. The receiving turntable is used to wind the remaining processed strip after the cut-off.

[0009] Furthermore, the feeding mechanism also includes a feeding sensor and a feeding motor. The feeding sensor is used to detect the material strip to be processed passing through it, and the feeding motor is used to drive the rotation of the feeding turntable. When the feeding sensor detects that the material strip to be processed meets the first preset condition, it controls the feeding motor to stop working, thereby waiting for the LED chip bracket on the material strip to be processed to be sent to the processing position for processing. When the feeding sensor detects that the material strip to be processed does not meet the first preset condition, it controls the feeding motor to start working, so that after the LED chip bracket is processed at the processing position, the feeding motor further drives the feeding turntable to release the material strip to be processed, thereby driving the LED chip bracket to be processed to be transported to the processing position.

[0010] Furthermore, the feeding mechanism includes a receiving sensor and a receiving motor. The receiving sensor is used to detect the processed material strip passing through it, and the receiving motor is used to drive the rotation of the receiving turntable. When the receiving sensor detects that the processed material strip meets the second preset condition, it controls the receiving motor to stop working, thereby waiting for the LED chip bracket on the material strip to be processed to be sent to the processing position for processing. When the receiving sensor detects that the processed material strip does not meet the second preset condition, it controls the receiving motor to start working, so that after the LED chip bracket is processed at the processing position, the receiving motor further drives the receiving turntable to wind up the processed material strip.

[0011] Furthermore, both the feeding sensor and the receiving sensor are pressure sensors. The first preset condition is that the pressure value applied to the feeding sensor by the material strip to be processed is greater than the first preset pressure value, and the second preset condition is that the pressure value applied to the receiving sensor by the processed material strip is equal to the second preset pressure value. Alternatively, both the feeding sensor and the receiving sensor are speed sensors. The first preset condition is that the speed value of the material strip to be processed moving relative to the feeding sensor is greater than the first preset speed value, and the second preset condition is that the speed value of the material strip to be processed moving relative to the receiving sensor is equal to the second preset speed value.

[0012] Furthermore, the frame includes a support and a column, the column being fixedly connected to the support and extending vertically. The feeding turntable and the take-up turntable are rotatably and vertically mounted on the column. The feeding turntable is located above the take-up turntable in the vertical direction, and the respective axes of rotation of the two turntables are arranged parallel. The support rotatably supports the feeding reel and the take-up reel. The feeding reel and the take-up reel are horizontally spaced and parallel in the vertical direction, and the feeding reel is located above the take-up reel in the vertical direction.

[0013] Furthermore, the support includes four horizontally spaced parallel support plates in the vertical direction. These four support plates are arranged vertically from top to bottom as a first layer support plate, a second layer support plate, a third layer support plate, and a fourth layer support plate. The first and second layer support plates respectively rotatably support a feeding reel. The two feeding reels synchronously drive the strip to be processed on them to feed the material synchronously. The two feeding reels share a feeding turntable, so that when one of the two feeding reels drives the strip to be processed after multiple feedings… After obtaining the remaining strip roll to be processed, the remaining strip roll is transferred and placed on the unloading turntable. The third and fourth support plates respectively rotate to support an unloading reel. The two take-up reels share a take-up turntable, so that the two take-up reels can simultaneously wind up the processed strip roll. When the processed strip roll on one of the two take-up reels reaches the preset winding amount and needs to be cut, the cut end corresponding to the remaining processed strip roll after cutting is wound onto the take-up turntable and thus wound up as the take-up turntable rotates.

[0014] Furthermore, the automatic material changing and conveying device for LED chip mount brackets also includes a support arm, two first roll thickness detectors, two second roll thickness detectors, and an indicator. The support arm is fixed to the first layer support plate, and a first roll thickness detector is suspended on the support arm. The first roll thickness detector faces the unloading reel rotatably supported on the upper side of the first layer support plate and is used to detect the thickness of the strip roll to be processed driven by the unloading reel. Another first roll thickness detector is arranged on the lower side of the first layer support plate. The other first roll thickness detector faces the other unloading reel rotatably supported on the second layer support plate and is used to detect the thickness of the strip roll to be processed driven by the other unloading reel. The second layer support plate and the lower side of the second layer support plate are respectively... A second roll thickness detector is installed. Two first roll thickness detectors face the take-up reels that are rotatably supported on the second and third support plates, respectively, and are used to detect the thickness of the processed strip rolls wound by the two take-up reels. When at least one of the two first roll thickness detectors detects that the thickness of the remaining strip roll to be processed is less than the preset strip amount, the prompt is triggered to prompt the remaining strip roll to be processed to be transferred and placed on the unloading turntable. When at least one of the two second roll thickness detectors detects that the thickness of the processed strip roll is equal to the preset winding amount, the prompt is triggered to prompt the processed strip to be cut and the cut end of the remaining processed strip to be wound onto the take-up turntable.

[0015] Furthermore, the frame also includes a support platform. The automatic material changing and conveying device for LED chip mount brackets also includes two release paper reels and two third roll thickness detectors mounted on the support platform. The two sides of the support platform are fixedly connected to four support plates and pillars, respectively. The two release paper reels are used to separate and wind up the release paper strips between each pair of adjacent turns of the material strip driven by the feed reel into release paper strip rolls. Both release paper reels are provided with perforations. The two third roll thickness detectors are located vertically at intervals below the two perforations. The third roll thickness detectors include... Includes a signal transmitter and a signal receiver. Two third roll thickness detectors transmit signals to the hollow arc through the signal transmitter and receive signals reflected back from the release paper roll to detect whether the release paper roll has reached the preset thickness. The preset thickness corresponds to the preset material amount. When at least one of the two third roll thickness detectors detects that the release paper roll has reached the preset thickness, the prompt is triggered to prompt the remaining material roll to be processed on the feed roll corresponding to the detected release paper roll to be transferred and placed on the feed turntable.

[0016] Secondly, embodiments of the present invention also provide an injection molding device, including any of the above-mentioned automatic material changing and conveying devices for LED chip brackets. The LED chip bracket injection molding device is provided with a processing station for injection molding. The LED chip bracket injection molding device applies a traction force to the material strip to be processed, which moves from the feeding mechanism to the processing station, and applies a pushing force to the processed material strip, which moves from the processing station to the receiving mechanism.

[0017] The beneficial effects of this invention are as follows:

[0018] The automatic material changing and conveying device for LED chip brackets provided by this invention utilizes the coordinated operation of the feeding reel and feeding turntable in the feeding mechanism. When the amount of material to be processed on the feeding reel is lower than a preset value, the remaining material is transferred to the feeding turntable for continued feeding. At the same time, the feeding reel can be loaded with new material rolls, realizing material changing without stopping the machine. Similarly, the receiving mechanism achieves material receiving without stopping the machine through the cooperation of the receiving turntable and receiving reel. The coordinated action of the feeding and receiving mechanisms enables the injection molding equipment to process the material to be processed without interruption, significantly improving production efficiency. It also avoids the problem of material waste caused by the rubber material aging and yellowing due to prolonged time on the screw of the injection molding machine during downtime, which necessitates remelting and injection. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments of the present invention will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, and these are all within the protection scope of the present invention.

[0020] Figure 1 This is a front view of the overall structure of an automatic material changing and conveying device for LED patch holders provided in an embodiment of the present invention;

[0021] Figure 2 This is a partial front view of the feeding mechanism and receiving mechanism of an automatic material changing and conveying device for LED chip brackets provided in an embodiment of the present invention;

[0022] Figure 3 This is a partial front view of an automatic material changing and conveying device for LED chip brackets provided in an embodiment of the present invention;

[0023] Figure 4 This is a partial structural side view of an automatic material changing and conveying device for LED patch holders provided in an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of an LED chip bracket injection molding equipment provided in an embodiment of the present invention;

[0025] Explanation of reference numerals in the attached figures:

[0026] 10. Automatic material changing and conveying device for LED chip brackets; 1. Frame; 11. Support; 111. Support plate; 12. Column; 13. Support platform; 2. Feeding mechanism; 21. Feeding reel; 22. Feeding turntable; 23. Feeding sensor; 24. Feeding motor; 3. Taking mechanism; 31. Taking reel; 32. Taking turntable; 33. Taking sensor; 34. Taking motor; 4. Guide wheel; 5. Release paper reel; 6. Support plate; 7. First reel motor speed controller; 8. Turntable motor speed controller; 9. Second reel motor speed controller; 20. Material strip to be processed; 30. Processed material strip; 40. LED chip bracket injection molding device. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element. Where there is no conflict, the various features in the embodiments and examples of this invention can be combined with each other, all of which are within the scope of protection of this invention.

[0028] refer to Figures 1 to 4As an objective of this invention, an automatic LED chip bracket changing and conveying device 10 is provided, comprising: a frame 1, a feeding mechanism 2 and a receiving mechanism 3 respectively disposed on the frame 1. The feeding mechanism 2 includes a feeding reel 21 and a feeding turntable 22. The feeding reel 21 is used to drive the roll of material to be processed, which has a quantity greater than a preset material amount, to rotate, thereby releasing the material to be processed 20 for feeding. That is, when releasing the material to be processed 20 for feeding, the roll of material to be processed is unwound, straightened and fed to the processing device from the outside to the inside, one turn at a time, under the traction force of the automatic LED chip bracket changing and conveying device 10 and the processing device. The roll of material to be processed is formed by winding the material to be processed 20 multiple times. Multiple LED chip brackets (not shown) are formed on the material to be processed 20. In this invention, the material to be processed 20 is specifically a copper strip, and multiple LED chip brackets (not shown) arranged in an array have been formed on the material to be processed 20 through a previous stamping process. The strip of material to be processed initially placed on the feeding reel 21 typically has a relatively large weight, for example, 200 to 300 catties. Preferably, a release paper strip is arranged between every two adjacent coils of strip of material to be processed 20. The release paper strip is rolled up and holds one strip of material to be processed 20 between every two coils, thereby reducing secondary contamination of the LED chip bracket during processing.

[0029] The feeding turntable 22 is used to receive the remaining strip rolls of material to be processed, which are less than or equal to the preset amount of strip rolls, after multiple feedings. When most of the strip rolls 20 have been processed, the weight of the remaining strip rolls is significantly reduced, and the user can manually or with simple tools move the remaining strip rolls onto the feeding turntable 22. The preset amount of strip rolls can be determined based on the ease of handling the remaining strip rolls, the time required, the processing speed of the strip rolls 20, etc., and is proportional to the radial thickness of the strip rolls. The feeding turntable 22 drives the remaining strip rolls to rotate to further release the strip rolls 20, thus achieving uninterrupted feeding. During the feeding process, LED chip holders are processed in batches in predetermined quantities. For example, an LED chip holder injection molding device 40 is used as the processing device to injection mold the LED chip holders on the predetermined length of strip rolls 20 that enters during feeding. The processing quantity for each injection molding operation can be set according to actual needs. When the feeding turntable 22 is working, the feeding reel 21 can receive new strip rolls to be processed in order to drive the new strip rolls to be processed for a new round of feeding.

[0030] The receiving mechanism 3 is used to wind up the processed material strip 30, which is formed after the LED chip bracket on the material strip 20 to be processed has been processed. The wound-up processed material strip 30 is wound into a processed material strip roll. When a section of the material strip 20 to be processed is processed in the processing device, this section of the strip becomes the processed material strip 30. Thus, while the feeding mechanism 2 feeds material, the receiving mechanism 3 picks it up, and the processed material strip 30 is gradually wound into a processed material strip roll.

[0031] As described above, since the feeding mechanism 2 of the automatic LED chip bracket feeding and conveying device 10 provided by the present invention uses a feeding reel 21 and a feeding turntable 22 to feed the material strip 20 to be processed, the feeding turntable 22 plays a transitional feeding role, providing sufficient time for the user to place a new material strip reel to be processed, thereby enabling the processing device to process the LED chip brackets on each predetermined length of material strip 20 continuously and with high automation. This avoids the processing device stopping to wait for the feeding reel 21 to be changed, and also avoids problems such as the easy aging and yellowing of the adhesive when the LED chip bracket injection molding device 40 stops, requiring remelting, significantly improving the product quality of the processed LED chip brackets.

[0032] Please refer to the reference. Figure 1 and Figure 2 Specifically, the receiving mechanism 3 includes a receiving reel 31 and a receiving turntable 32. The receiving reel 31 is used to wind up the processed strip 30 to form a processed strip roll. When the processed strip roll reaches the preset winding amount, the processed strip 30 can be manually cut using tools such as scissors. The receiving turntable 32 is used to wind up the remaining processed strip 30 after cutting. The preset winding amount can be determined based on the user's ease of handling the processed strip roll, the time required, the processing speed, etc., and is proportional to the radial thickness value of the processed strip roll. Therefore, the receiving mechanism 3 uses a receiving reel 31 and a receiving turntable 32 to reel in the processed material strip 30. The receiving turntable 32 plays a transitional receiving role, providing sufficient time to remove the processed material strip 30 from the receiving reel 31. At the same time, it ensures the uninterrupted operation of the LED chip bracket automatic material changing conveyor 10, and further ensures that the processing device processes the LED chip brackets on each predetermined length of material strip 20 without interruption and with high automation.

[0033] Please refer to the reference. Figure 1 and Figure 2Preferably, the feeding mechanism 2 further includes a feeding sensor 23 and a feeding motor 24. The feeding sensor 23 is used to detect the material strip 20 to be processed passing through it, and the feeding motor 24 is used to drive the rotation of the feeding turntable 22. When the feeding sensor 23 detects that the material strip 20 to be processed meets the first preset condition (e.g., the pressure value applied to the feeding sensor 23 is greater than zero or the relative speed is greater than zero), the feeding motor 24 is controlled to stop working, waiting for the LED chip holder on the material strip 20 to be processed. When the feeding sensor 23 detects that the material strip 20 to be processed does not meet the first preset condition (e.g., no pressure is applied or there is no relative movement), the feeding motor 24 is controlled to start working, so that after processing is completed, the feeding motor 24 drives the feeding turntable 22 to release the material strip 20 to be processed and transport the LED chip holder to be processed to the processing position. The feeding sensor 23 can accurately determine whether the material strip 20 to be processed is in the processing state, thereby accurately controlling the start and stop of the feeding motor 24 and ensuring accurate feeding of the material strip 22.

[0034] Please refer to the reference. Figure 1 and Figure 2 Preferably, the receiving mechanism 3 further includes a receiving sensor 33 and a receiving motor 34. The receiving sensor 33 is used to detect the processed material strip 30 passing through it, and the receiving motor 34 is used to drive the rotation of the receiving turntable 32. When the receiving sensor 33 detects that the processed material strip 30 meets the second preset condition (e.g., the pressure value is equal to zero or the relative speed is equal to zero), it controls the receiving motor 34 to stop working, waiting for the LED patch bracket on the material strip 20 to be processed. When the receiving sensor 33 detects that the processed material strip 30 does not meet the second preset condition (e.g., pressure is applied or there is relative movement), it controls the receiving motor 34 to start working, so that after processing, the receiving motor 34 drives the receiving turntable 32 to wind up the processed material strip 30. The receiving sensor 33 can accurately determine whether the material strip 20 to be processed is in a processing state, thereby accurately controlling the start and stop of the receiving motor 34 and ensuring the accuracy of receiving.

[0035] Please refer to the reference. Figure 2Specifically, both the feeding sensor 23 and the receiving sensor 33 are pressure sensors. A first preset condition is that the pressure applied by the material strip 20 to the feeding sensor 23 is greater than a first preset pressure value (e.g., 0), and a second preset condition is that the pressure applied by the processed material strip 30 to the receiving sensor 33 is equal to a second preset pressure value (e.g., 0). During processing at the processing station, the material strip 20 is not subjected to traction force and the processed material strip 30 is not subjected to pushing force. The material strip 20 hangs down under its own weight and presses down on the feeding sensor 23. At this time, the feeding sensor 23 detects a pressure value greater than 0, and the feeding motor 24 stops working. After processing is completed, the material strip 20 is pulled away from the feeding sensor 23 by traction force. At this time, the feeding sensor 23 does not detect a pressure value, and the feeding motor 24 starts working. Simultaneously, the processed material strip 30 is pushed away from the receiving sensor 33 by pushing force. At this time, the receiving sensor 33 does not detect a pressure value, and the receiving motor 34 starts working. In this way, the feeding motor 24 and the receiving motor 34 can be started synchronously to coordinate feeding and receiving.

[0036] Please refer to the reference. Figure 1 and Figure 3 Preferably, the frame 1 includes a support 11 and a support column 12. The support column 12 is fixedly connected to the support 11 and extends vertically. A feeding turntable 22 and a take-up turntable 32 are rotatably and vertically mounted on the support column 12, with the feeding turntable 22 located above the take-up turntable 32 and the rotation axes of the two turntables arranged parallel to each other. The support 11 rotatably supports the feeding reel 21 and the take-up reel 31, which are horizontally spaced parallel in the vertical direction, with the feeding reel 21 located above the take-up reel 31. This arrangement makes the feeding mechanism 2 and the take-up mechanism 3 compact, facilitating smooth and accurate displacement of the material strip 20 to be processed and the processed material strip 30 during the feeding and take-up processes.

[0037] Please refer to the reference. Figure 1Specifically, the support 11 includes four horizontally spaced parallel support plates 111 arranged vertically. These four support plates 111 are arranged vertically from top to bottom as a first layer support plate, a second layer support plate, a third layer support plate, and a fourth layer support plate. The first layer support plate and the second layer support plate rotatably support a feeding reel 21. The two feeding reels 21 synchronously drive the strip rolls to be processed on them for synchronous feeding, and the two feeding reels 21 share a feeding turntable 22. When the strip roll driven by one of the two feeding reels 21 has a remaining strip roll after multiple feedings, the remaining strip roll is transferred and placed on the feeding turntable 22. Generally, the two strips 20 to be processed have LED chip supports that are injection molded at two different processing positions of two different injection molds of the LED chip support injection molding device 40. Either the lengths of the two strips 20 entering the two different processing positions are different, or the initial thicknesses of the two strip rolls are different. Therefore, the probability that the remaining strip rolls after unloading need to be transferred to the unloading turntable 22 at the same time is very low. Therefore, setting up a shared unloading turntable 22 can simplify the structure and reduce costs.

[0038] The third and fourth support plates each rotatably support a take-up reel 31. The two take-up reels 31 share a take-up turntable 32, allowing both reels 31 to simultaneously wind up the processed material strip. When the processed material strip on one of the two take-up reels 31 reaches a preset winding amount and needs to be cut, the cut end corresponding to the remaining processed material strip 30 is wound onto the take-up turntable 32 and thus wound up as the turntable 32 rotates. Similar to the reason why the probability of two remaining processed material strips needing to be transferred to the unloading turntable 22 simultaneously is very low, the probability of two processed material strips needing to be cut simultaneously, thus requiring the cut ends of the two remaining processed material strips 30 to be wound onto the take-up turntable 32 simultaneously, is also very low. Therefore, providing a shared take-up turntable 32 further simplifies the structure and reduces costs. In summary, the automatic material changing and conveying device 10 for LED chip brackets uses two feeding reels 21 for feeding and two receiving reels 31 for receiving, which can increase the total number of LED chip brackets processed in one operation, thereby improving processing efficiency. Furthermore, by using a shared feeding turntable 22 and a receiving turntable 32, it can ensure uninterrupted feeding and supply, simplify the structure, and reduce costs.

[0039] Please refer to the reference. Figure 1 and Figure 2Preferably, the automatic material changing and conveying device 10 for LED patch holders further includes a support arm (not shown), two first roll thickness detectors, two second roll thickness detectors, and a prompter. The support arm is fixed to the first layer support plate and supports a first roll thickness detector suspended on the support arm. The prompter can specifically be a voice announcer, a display, etc. In this invention, the prompter is a voice announcer. The first roll thickness detector faces the unloading reel 21 rotatably supported on the upper side of the first layer support plate and is used to detect the thickness of the strip roll to be processed driven by the unloading reel 21. Another first roll thickness detector is arranged on the lower side of the first layer support plate, and the other first roll thickness detector faces another unloading reel 21 rotatably supported on the second layer support plate and is used to detect the thickness of the strip roll to be processed driven by the other unloading reel 21. A second roll thickness detector is arranged on the lower side of each of the second and third layer support plates. Two first roll thickness detectors face the take-up reels 31 rotatably supported on the second and third support plates, respectively, and are used to detect the thickness of the processed strip rolls wound by the two take-up reels 31. When at least one of the two first roll thickness detectors detects that the thickness of the remaining strip roll is less than a preset strip amount, the prompter receives a control command generated based on the detection result and is triggered to issue a voice message pre-stored in, for example, a memory, indicating that the remaining strip roll to be processed will be transferred and placed on the unloading turntable 22. When at least one of the two second roll thickness detectors detects that the thickness of the processed strip roll is equal to the preset winding amount, the prompter is also triggered to issue a corresponding voice message to prompt that the processed strip 30 be cut and the cut end of the remaining processed strip be wound onto the take-up turntable 32. Specifically, both the first and second roll thickness detectors include a signal transmitter and a signal receiver. They detect the thickness of the roll of material to be processed or the roll of material already processed by determining whether the signal emitted by the signal transmitter is reflected to the corresponding signal receiver by the signal transmitter. When the unloading turntable 22 and the take-up turntable 32 are used for transitional unloading and transitional take-up, they can respectively provide time for replacing the new roll of material to be processed onto the unloading reel 21 and transferring the processed roll of material already processed onto the take-up reel 31. After replacement and transfer, the front free end of the new material strip 20 to be processed is connected to the tail free end of the material strip 20 exposed after continuous feeding on the feeding turntable 22 by means of tape or masking tape. Then, the processed material strip 30 with the preset thickness wound on the receiving turntable 32 is cut off and the cut end of the processed material strip 30 located on the side of the processing device is wound onto the empty receiving reel 31.Therefore, by setting two first roll thickness detectors and two second roll thickness detectors, this LED chip bracket automatic material changing and conveying device 10 can detect the thickness of the corresponding remaining unprocessed material rolls and processed material rolls on the unloading reel 21 and the take-up reel 31 in a timely and accurate manner. The device then uses a prompter to provide the corresponding information to remind the user to perform the corresponding operation in a timely manner. This not only has a high degree of automation, but also avoids the need for continuous visual observation by the user, saves manpower, and ensures that the unloading and take-up of the LED chip bracket automatic material changing and conveying device 10 is carried out continuously and uninterruptedly, which significantly improves production efficiency and enhances the processing quality of the products.

[0040] Please refer to the reference. Figure 1 and Figure 4Preferably, the frame 1 further includes a support platform 13, and the automatic material changing and conveying device 10 for LED patch holders further includes two release paper reels 5 and two third roll thickness detectors mounted on the support platform 13. The aforementioned indicator can be mounted on the support platform 13. The two sides of the support platform 13 are fixedly connected to four support plates 111 and pillars 12, respectively. The two release paper reels 5 are driven by two paper reel motors, thereby separating and winding the release paper strips between each pair of adjacent turns of the feed strip 20 driven by a feed reel 21 into release paper strip rolls. The release paper strips are specifically made of sulfur-free paper. Preferably, the two release paper reels 5 are vertically higher than the two feed reels 21, which facilitates the separation of the release paper. In this embodiment, the two release paper reels 5 are fixedly connected to the support platform 13 via a support plate 6. The first extension direction of the four support plates 111 relative to the support platform 13 is perpendicular to the second extension direction of the two support plates 6 relative to the support platform 13. This ensures that the operations related to the material roll to be processed, the processed material roll, and the release paper roll have independent operating spaces, without interference, and facilitates direct observation of the working status of each roll and turntable. Both release paper rolls 5 are provided with perforated sections, which can be multiple central arcs passing through the same concentric circle. Two third roll thickness detectors are located vertically at intervals below the two perforated sections. Each third roll thickness detector includes a signal transmitter and a signal receiver. The two third roll thickness detectors transmit signals to the perforated arcs through the signal transmitters and receive signals reflected back from the release paper rolls 5 through the signal receivers to detect whether the release paper roll has reached the preset thickness. This preset thickness can be set to correspond to a preset material roll amount in a proportional relationship. When at least one of the two third roll thickness detectors detects that the release paper roll has reached the preset thickness, the indicator is triggered to prompt the transfer of the remaining roll of material to be processed on the feed reel 21 corresponding to the detected release paper roll to the feed turntable 22. It is understood that the LED patch holder automatic material changing and conveying device 10 includes a control device such as a CPU or PLC. The control device includes a storage unit and a controller, and is electrically connected to each sensor and each roll thickness detector. The storage unit stores a correspondence table between the thickness of the release paper roll and the processed roll detected by the first and second roll thickness detectors and the preset material amount and preset winding amount, along with corresponding detection result information. Similarly, the storage unit also stores a correspondence table between the thickness of the release paper roll detected by the third roll thickness detector and the preset material amount, along with corresponding detection result information. The controller controls the operation of each motor and the indicator according to the received detection result information.Therefore, the automatic material changing and conveying device 10 for LED chip brackets uses two third roll thickness detectors to detect the thickness of the release paper rolls. Although the release paper and the paper to be processed have certain differences in thickness and extensibility, they are related in length. Furthermore, the thickness of the release paper roll is also related to the preset material quantity. In other words, the decrease in the thickness of the material to be processed roll and the increase in the thickness of the release paper roll are inversely proportional. Therefore, not only can the release paper be separated and wound up by the two release paper reels 5, but the thickness of the two release paper rolls can also be detected in a timely and accurate manner by the two third roll thickness detectors. This is equivalent to timely and accurately detecting the thickness of the remaining material to be processed rolls on the two unloading reels 21. The device then uses an indicator to provide relevant information to remind the user to perform the corresponding operation in a timely manner. This device has a high degree of automation, significantly improves production efficiency, and enhances the processing quality of the products.

[0041] In the embodiment of the LED patch holder automatic material changing and conveying device 10, which uses two isolation paper rolls 5 and two third roll thickness detectors, not only can the thickness of the remaining material rolls to be processed on the two unloading rolls 21 be detected by the third roll thickness detector, but the detected thickness of the two isolation paper rolls 5 can also be used as a prompt message to be stored in the memory to indicate that the two isolation paper rolls need to be transferred, so that the prompter can remind the user to perform the corresponding operation in a timely manner.

[0042] Furthermore, as another improvement, the LED chip bracket automatic material changing conveyor 10 has reel motors that drive each feed reel 21, each take-up reel 31, and each release paper reel 5. The controller can automatically match and control the start and stop of each reel motor, feed motor 24, and take-up motor 34 according to the detection results of each detector and sensor, so that they work together in a coordinated manner. For example, the reel motor of the release paper reel 5 is controlled to start and stop synchronously with the reel motor of the corresponding feed reel 21 or the reel motor of the feed turntable 22. For another example, when the first roll thickness detector detects that the thickness of the material roll to be processed is less than the preset material amount, the reel motor of the feed reel 21 is turned off accordingly, and the feed motor 24 of the feed turntable 22 is automatically started, or the remaining material roll to be processed is manually placed on the feed turntable 22 before the control panel is manually operated to start it.

[0043] Furthermore, as another improvement, a first reel motor speed controller 7, a turntable motor speed controller 8, and a second reel motor speed controller 9, all electrically connected to the controller, are installed on the support 13 from top to bottom. The first reel motor speed controller 7 allows manual adjustment of the speed of the reel motors of each unloading reel 21 and each take-up reel 31. The turntable motor speed controller 8 allows manual adjustment of the speed of the unloading motor 24 and the take-up motor 34. The second reel motor speed controller 9 allows manual adjustment of the speed of the reel motors of each separator paper reel 5. The controller can match the above-mentioned various controls according to the speed parameters input through each speed controller. Moreover, through manual settings, it can adapt to the conveying and processing of material strips 20 with different parameters such as different extensibility and different total lengths. It can also slow down the speed of the corresponding motors accordingly during cutting and transfer operations, thereby ensuring the reliable implementation of each operation. Furthermore, in the event that the probability of either of the following two very low scenarios—that the remaining unprocessed material rolls obtained after unloading need to be transferred to the unloading turntable 22 simultaneously, or that the processed material rolls need to be cut simultaneously and thus the cut ends of the two remaining processed material rolls 30 need to be wound onto the take-up turntable 32 simultaneously—is very low, the rotation speed of the two unloading reels 21 or the two unloading reels 31 can be adjusted by the first reel motor speed controller 7. This will stagger the time when the two remaining unprocessed material rolls on the two unloading reels 21 need to be transferred, and also stagger the time when the processed material rolls on the two take-up reels 31 need to be cut, thus preventing either of the two very low-probability scenarios from occurring.

[0044] As a further improvement, multiple CCDs can be used to replace the individual roll thickness detectors. The image recognition function of the CCDs can be used to detect the thickness of the material roll to be processed, the processed material roll, and the release paper roll, thereby controlling the prompter to display the corresponding information based on the thickness detection results.

[0045] As another objective of this invention, please refer to Figure 5 and combined Figures 1 to 4An LED chip bracket injection molding equipment is provided, comprising: an LED chip bracket injection molding device 40 and an automatic LED chip bracket material changing and conveying device 10 of any one of the above. The LED chip bracket injection molding equipment can obtain the beneficial effects brought by any one of the automatic LED chip bracket material changing and conveying devices 10, which will not be elaborated here. The LED chip bracket injection molding device 40 is provided with a processing position for applying injection molding processing to the LED chip brackets on the section of the material strip 20 to be processed located at the processing position. The LED chip bracket injection molding device 40 applies a traction force to the material strip 20 to be processed, which moves towards the processing position by the unloading mechanism 2, specifically the unloading reel 21 or the unloading turntable 22, and applies a pushing force to the processed material strip 30, which moves towards the receiving mechanism 3, specifically the receiving reel 31 or the receiving turntable 32, from the processing position. Furthermore, when the LED chip bracket injection molding device 40 needs to perform initial processing at the processing station or after each processing cycle, the strip to be processed 20 is subjected to a traction force, causing it to move away from the unloading sensor 23. Since the unloading sensor 23 does not detect the strip to be processed 20, the unloading motor 24 is activated. Simultaneously, the processed strip 30 is subjected to a pushing force, causing it to come into contact with the take-up sensor 33. The take-up sensor 33 then detects the processed strip 30, and the take-up motor 34 is activated. At this time, the driving force and traction force applied by the unloading turntable 22 act together on the strip to be processed 20, and the driving force and pushing force applied by the take-up turntable 32 act together on the processed strip 30, conveying the next section of the strip to be processed 20 to the processing station for processing. Furthermore, when the LED chip bracket injection molding device 40 is processing at the processing station, it does not apply a traction force to the strip 20 to be processed, causing the strip 20 to droop and contact the feed sensor 23. The feed sensor 23 then detects the strip 20, and the feed motor 24 is controlled to stop working. Simultaneously, the processed strip 30 is not pushed, causing it to move away from the take-up sensor 33. The take-up sensor 33 then fails to detect the processed strip 30, and the take-up motor 34 is controlled to stop working. This ensures that when the strip 20 is being processed, it is not subjected to the driving and traction forces applied by the feed turntable 22, and the processed strip 30 is not subjected to the driving and pushing forces applied by the take-up turntable 32. Therefore, the strip 20 being processed is not subjected to any external forces other than the processing forces, guaranteeing the reliability of the processing quality. Therefore, the LED chip bracket injection molding equipment has the advantages of high production efficiency and good processing quality in the injection molding of LED chip brackets.

[0046] The above description is merely a specific embodiment of the present invention. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the protection scope of the present invention.

Claims

1. An automatic material changing and conveying device for LED patch supports, characterized in that, include: frame; A feeding mechanism is provided on the frame. The feeding mechanism includes a feeding reel and a feeding turntable. The feeding reel is used to drive the roll of material to be processed, which is larger than a preset amount of material, to rotate. Multiple LED chip supports are formed on the material to be processed. The feeding turntable is used to receive the remaining roll of material to be processed and feed it further. During the feeding process, the LED chip supports are processed in batches in a predetermined number. When the feeding turntable is working, the feeding reel can receive a new roll of material to be processed to drive the new roll of material to be processed, thereby performing a new round of feeding. A receiving mechanism is provided on the frame. The receiving mechanism includes a receiving reel and a receiving turntable. The receiving reel is used to wind up the processed material strip to obtain a processed material strip roll. When the processed material strip roll reaches a preset winding amount, the processed material strip is cut off. The receiving turntable is used to wind up the remaining processed material strip after the cut-off. A control device, the control device including a storage device and a controller.

2. The LED patch support automatic reloading conveying device according to claim 1, characterized in that, A roll of material strip with a quantity greater than the preset material strip is rotated under the drive of the unloading reel to release the material strip for feeding. The roll of material strip is formed by winding the material strip multiple times. The remaining roll of material strip is obtained by feeding the roll of material strip multiple times and satisfying that the quantity is less than or equal to the preset material strip quantity. The unloading turntable drives the remaining roll of material strip to rotate to further release the material strip for feeding. The processed material strip is formed after the LED chip bracket on the material strip has been processed. A release paper tape is sandwiched between every two turns of the material strip.

3. The LED patch support automatic reloading conveying device according to claim 1, characterized in that, The feeding mechanism also includes a feeding sensor and a feeding motor. The feeding sensor is used to detect the material strip to be processed passing through it, and the feeding motor is used to drive the rotation of the feeding turntable. When the feeding sensor detects that the material strip to be processed meets the first preset condition, it controls the feeding motor to stop working, thereby waiting for the LED chip bracket on the material strip to be processed to be sent to the processing position for processing. When the feeding sensor detects that the material strip to be processed does not meet the first preset condition, it controls the feeding motor to start working, so that after the LED chip bracket is processed at the processing position, the feeding motor further drives the feeding turntable to release the material strip to be processed, thereby driving the LED chip bracket to be processed to be transported to the processing position.

4. The LED patch support automatic reloading conveying device according to claim 3, characterized in that, The receiving mechanism includes a receiving sensor and a receiving motor. The receiving sensor detects the processed material strip passing through it, and the receiving motor drives the rotation of the receiving turntable. When the receiving sensor detects that the processed material strip meets a second preset condition, it controls the receiving motor to stop working, thus waiting for the LED chip holder on the material strip to be processed at the processing position to be processed. When the receiving sensor detects that the processed material strip does not meet the second preset condition, it controls the receiving motor to start working, so that after the LED chip holder is processed at the processing position, the receiving motor further drives the receiving turntable to wind up the processed material strip. The material strip is processed, and both the feeding sensor and the receiving sensor are pressure sensors. The first preset condition is that the pressure value applied by the material strip to the feeding sensor is greater than a first preset pressure value, and the second preset condition is that the pressure value applied by the processed material strip to the receiving sensor is equal to a second preset pressure value. Alternatively, both the feeding sensor and the receiving sensor are speed sensors, and the first preset condition is that the speed value of the material strip to be processed relative to the feeding sensor is greater than a first preset speed value, and the second preset condition is that the speed value of the material strip to be processed relative to the receiving sensor is equal to a second preset speed value.

5. The LED patch support automatic reloading conveying device according to claim 4, characterized in that, The frame includes a support and a column, the column being fixedly connected to the support and extending vertically. The feeding turntable and the taking-up turntable are rotatably and vertically mounted on the column. The feeding turntable is located above the taking-up turntable in the vertical direction, and the respective axes of rotation of the two turntables are parallel. The support rotatably supports the feeding reel and the taking-up reel. The feeding reel and the taking-up reel are horizontally spaced and parallel in the vertical direction, and the feeding reel is located above the taking-up reel in the vertical direction.

6. The LED patch support automatic reloading conveying device according to claim 5, characterized in that, The support includes four horizontally spaced and parallel support plates in the vertical direction. The four support plates are arranged vertically from top to bottom as a first layer support plate, a second layer support plate, a third layer support plate, and a fourth layer support plate. The first layer support plate and the second layer support plate rotatably support a feeding reel. The two feeding reels synchronously drive the strip roll to be processed on them to feed synchronously. The two feeding reels share a feeding turntable, so that when the strip roll to be processed driven by one of the two feeding reels has undergone multiple feedings to obtain the remaining strip roll to be processed… After the material strip is wound up, the remaining material strip roll to be processed is transferred and placed on the unloading turntable. The third layer support plate and the fourth layer support plate respectively rotatably support one of the take-up reels. The two take-up reels share one take-up turntable, so that the two take-up reels can simultaneously wind up the processed material strip roll. When the processed material strip roll on one of the two take-up reels reaches the preset winding amount and needs to be cut, the cut end corresponding to the remaining processed material strip to be formed after cutting is wound onto the take-up turntable, and thus is wound up as the take-up turntable rotates.

7. The LED patch support automatic reloading conveying device according to claim 6, characterized in that, The automatic material changing and conveying device for LED patch holders also includes a support arm, two first roll thickness detectors, two second roll thickness detectors, and a prompter. The support arm is fixed to a first-layer support plate and suspends a first roll thickness detector on the support arm. Both the first and second roll thickness detectors include a signal transmitter and a signal receiver. The prompter is a voice announcer. The first roll thickness detector faces the unloading reel rotatably supported on the upper side of the first-layer support plate and is used to detect the thickness of the strip roll to be processed driven by the unloading reel. Another first roll thickness detector is arranged on the lower side of the first-layer support plate. This other first roll thickness detector faces another unloading reel rotatably supported on the second-layer support plate and is used to detect the thickness of the strip roll to be processed driven by the other unloading reel. The second-layer support plate and the... Two second roll thickness detectors are respectively arranged on the lower side of each of the third layer support plates. The two second roll thickness detectors face the take-up reels that are rotatably supported on the third layer support plate and the fourth layer support plate, respectively, and are used to detect the thickness of the processed strip rolls wound by the two take-up reels. When at least one of the two first roll thickness detectors detects that the thickness of the remaining strip roll to be processed is less than the preset strip amount, the prompt is triggered to prompt the remaining strip roll to be processed to be transferred and placed on the unloading turntable. When at least one of the two second roll thickness detectors detects that the thickness of the processed strip roll is equal to the preset winding amount, the prompt is triggered to prompt the processed strip to be cut and the cut end of the remaining processed strip to be wound onto the take-up turntable.

8. The LED patch support automatic reloading conveying device according to claim 7, characterized in that, The frame also includes a support platform. The automatic material changing and conveying device for the LED chip holder also includes two release paper reels and two third roll thickness detectors mounted on the support platform. Each of the feed reel, take-up reel, and release paper reel is equipped with a reel motor. The reel motor of the release paper reel is controlled to start and stop synchronously with the reel motor of the corresponding feed reel or feed turntable. The indicator is located on the support platform. The two sides of the support platform are fixedly connected to the four support base plates and the pillar respectively. The two release paper reels are fixedly connected to the support platform through a support plate. The first extension direction of the four support base plates relative to the support platform is perpendicular to the second extension direction of the two support plates relative to the support platform. The two release paper reels are used to separate and wind the release paper tape between each pair of adjacent turns of the material strip to be processed driven by one feed reel into a release paper tape roll. In the vertical direction, the two release paper reels are used to separate and wind the release paper tape between each pair of adjacent turns of the material strip to be processed by one feed reel. The release paper reels are respectively higher than the two feed reels. Both release paper reels are provided with cutouts, each cutout including multiple central arcs passing through the same concentric circle. Two third roll thickness detectors are respectively located vertically at intervals below the two cutouts. Each third roll thickness detector includes a signal transmitter and a signal receiver. The two third roll thickness detectors respectively transmit signals to the cutouts through the signal transmitter and receive signals reflected back from the release paper reels through the signal receiver to detect whether the release paper roll has reached a preset thickness. The preset thickness corresponds to the preset material amount. When at least one of the two third roll thickness detectors detects that the release paper roll has reached the preset thickness, the prompter is triggered to prompt the remaining material roll to be processed on the feed reel corresponding to the detected release paper roll to be transferred and placed on the feed turntable.

9. The LED patch support automatic reloading conveying device according to claim 8, characterized in that, The support platform is equipped with a first reel motor speed controller, a turntable motor speed controller, and a second reel motor speed controller, all electrically connected to the controller. The first reel motor speed controller is electrically connected to the reel motors of the feeding reel and the taking reel. The turntable motor speed controller is electrically connected to the feeding motor and the taking reel motor. The second reel motor speed controller is electrically connected to the reel motor of the separator paper reel.

10. Injection molding apparatus characterized in that, The device includes an automatic material changing and conveying device for LED chip brackets as described in any one of claims 1-9. The injection molding equipment is provided with a processing station for injection molding. The injection molding equipment applies a traction force to the material strip to be processed, which moves it from the feeding mechanism to the processing station, and applies a pushing force to the processed material strip, which moves it from the processing station to the receiving mechanism. The traction force and the pushing force work in conjunction with the driving forces of the feeding turntable and the receiving turntable.

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