Automatic material changing and conveying device for LED patch support and injection molding equipment

Abstract

The invention relates to the technical field of LED patch support machining, and discloses an LED patch support automatic material changing and conveying device and injection molding equipment. The automatic material changing and conveying device for the LED patch support comprises a rack, a discharging mechanism, a material collecting mechanism and a control device, the discharging mechanism and the material collecting mechanism are both arranged on the rack, the discharging mechanism comprises a discharging reel and a discharging rotary disc, the material collecting mechanism comprises a material collecting reel and a material collecting rotary disc, and the control device is arranged on the rack. The discharging reel is used for driving the to-be-machined material strip coil larger than the preset material strip amount to rotate, the discharging rotary disc is used for receiving the remaining to-be-machined material strip coil smaller than or equal to the preset material strip amount obtained after the to-be-machined material strip coil is discharged for multiple times, and the discharging rotary disc drives the remaining to-be-machined material strip coil to rotate so as to further discharge materials. And the discharging reel can receive a new to-be-processed material strip coil so as to drive the new to-be-processed material strip coil, so that a new round of discharging is carried out. The device has the advantages of being high in production efficiency and stable in product quality when being used for processing the LED patch support.

Description

[0001] This invention is a divisional application of the invention patent application filed on March 4, 2025, with the invention name “LED patch bracket conveying device and LED patch bracket injection molding equipment” and application number: 2025102464206. Technical Field

[0002] The present invention relates to the technical field of LED patch bracket processing, and in particular to an automatic material changing and conveying device and injection molding equipment for an LED patch bracket. Background Art

[0003] The LED bracket is the base of the LED lamp bead before packaging. The LED chip is fixed on the LED bracket, and then the positive and negative electrodes are welded, and then sealed with glue to form.

[0004] LED brackets typically include plug-in brackets, piranha brackets, and surface mount brackets. LED surface mount brackets are typically manufactured through stamping, electroplating, injection molding, blanking, and packaging. During the injection molding process, a single-reel reel-type rewinder is typically required. This type of rewinder requires shutdown to reload material after unloading from the reel. This not only reduces efficiency but also causes the rubber to age and yellow due to its prolonged time on the injection molding machine's screw during downtime. This necessitates re-soldering and re-injection, resulting in wasteful rubber and unstable product quality.

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

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

[0007] In the first aspect, an embodiment of the present invention provides an automatic material changing and conveying device for LED patch brackets, comprising: a frame; a material unloading mechanism arranged on the frame, comprising a material unloading reel and a material unloading turntable, the material unloading reel is used to drive a roll of material tape to be processed that is larger than a preset material tape amount to rotate, a plurality of LED patch brackets are formed on the material tape to be processed, the material unloading turntable is used to receive the remaining roll of material tape to be processed and further unload the material, during the unloading process, the LED patch brackets are processed in batches in a predetermined quantity, when the material unloading turntable is working, the material unloading reel can receive a new roll of material tape to be processed to wait for driving a new roll of material tape to be processed, thereby performing a new round of unloading; a material receiving mechanism arranged on the frame is used to rewind the processed material tape, and the rewound processed material tape is wound into a processed material tape roll.

[0008] Furthermore, the roll of unprocessed material tape that is larger than the preset material tape amount rotates under the drive of the unwinding reel to release the unprocessed material tape for unwinding. The roll of unprocessed material tape is formed by winding the unprocessed material tape around multiple times. The remaining roll of unprocessed material tape is obtained by unwinding the unprocessed material tape roll multiple times and meeting a value less than or equal to the preset material tape amount. The unwinding turntable drives the remaining roll of unprocessed material tape to rotate to further release the unprocessed material tape for further unwinding. The processed material tape is formed after the LED patch bracket on which the unprocessed material tape has been processed. The material receiving mechanism includes a material receiving reel and a material receiving turntable. The material receiving reel is used to rewind the processed material tape to obtain a processed material tape roll. When the processed material tape roll reaches the preset winding amount, the processed material tape is cut off, and the material receiving turntable is used to rewind the processed material tape remaining after the cut.

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

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

[0011] Furthermore, the material unloading sensor and the material receiving sensor are both set as pressure sensors, the first preset condition is set as the pressure value applied by the material strip to be processed on the material unloading sensor is greater than the first preset pressure value, and the second preset condition is set as the pressure value applied by the processed material strip to the material receiving sensor is equal to the second preset pressure value, or, the material unloading sensor and the material receiving sensor are both set as speed sensors, the first preset condition is set as the speed value of the relative movement of the material strip to be processed on the material unloading sensor is greater than the first preset speed value, and the second preset condition is set as the speed value of the relative movement of the material strip to be processed on the material receiving sensor is equal to the second preset speed value.

[0012] Furthermore, the frame includes a support and a pillar, which is fixedly connected to the support and extends in the vertical direction. The unloading turntable and the receiving turntable are rotatably mounted vertically on the pillar. The unloading turntable is located above the receiving turntable in the vertical direction and the respective rotating axes of the two turntables are arranged in parallel. The unloading reel and the receiving reel are rotatably supported on the support. The unloading reel and the receiving reel are horizontally spaced and parallel in the vertical direction. The unloading reel is located above the receiving reel in the vertical direction.

[0013] Furthermore, the support includes four support base plates that are horizontally spaced and parallel in the vertical direction. The four support base plates are formed in sequence from top to bottom in the vertical direction as a first-layer support base plate, a second-layer support base plate, a third-layer support base plate and a fourth-layer support base plate. The first-layer support base plate and the second-layer support base plate rotate and support a discharge reel respectively. The two discharge reels synchronously drive the material strip to be processed thereon to discharge the material synchronously, and the two discharge reels share a discharge turntable, so that when the material strip to be processed driven by one of the two discharge reels is discharged multiple times After obtaining the remaining material strip rolls to be processed, the remaining material strip rolls to be processed are transferred and placed on the unwinding turntable. The third-layer support seat plate and the fourth-layer support seat plate rotate to support a unwinding reel respectively. The two take-up reels share a take-up turntable, so that the two take-up reels can rewind the processed material strip rolls at the same time. When the processed material strip roll on one of the two take-up reels reaches the preset take-up amount and needs to be cut off, the cut head corresponding to the remaining processed material strip to be formed after the cut is wound onto the take-up turntable, and thus is wound up as the take-up turntable rotates.

[0014] Furthermore, the automatic material changing and conveying device for the LED patch bracket also includes a support arm, two first roll thickness detectors, two second roll thickness detectors and a prompter. The support arm is fixed to the first-layer support base plate and a first roll thickness detector is suspended on the support arm. The first roll thickness detector faces the unwinding reel supported by rotation on the upper side of the first-layer support base plate and is used to detect the thickness of the material roll to be processed driven by the unwinding reel. Another first roll thickness detector is arranged on the lower side of the first-layer support base plate. The other first roll thickness detector faces the other unwinding reel supported by rotation on the second-layer support base plate and is used to detect the thickness of the material roll to be processed driven by the other unwinding reel. The second-layer support base plate and the second-layer support base plate are respectively provided on their lower sides. A second roll thickness detector is arranged separately, and the two first roll thickness detectors face the take-up reels supported by the second support base plate and the third support base plate respectively, and are used to detect the thickness of the processed material strip rolls respectively taken up by the two take-up reels. When at least one of the two first roll thickness detectors detects that the thickness of the remaining material strip roll to be processed corresponds to less than the preset material strip amount, the prompter is triggered to prompt the remaining material strip roll to be processed to be transferred and placed on the unwinding turntable. When at least one of the two second roll thickness detectors detects that the thickness of the processed material strip roll corresponds to the preset winding amount, the prompter is triggered to prompt the processed material strip to be cut off and the cut end of the remaining processed material strip to be wound onto the take-up turntable.

[0015] Furthermore, the frame also includes a support platform, and the automatic material changing and conveying device for the LED patch bracket also includes two isolation paper reels and two third roll thickness detectors arranged on the support platform. The two sides of the support platform are fixedly connected to the four supporting base plates and pillars respectively. The two isolation paper reels are used to separate the isolation paper tapes between each two adjacent circles of the material tape to be processed driven by a material unwinding reel and rewind them into isolation paper tape rolls. Hollow parts are provided on the two isolation paper reels, and the two third roll thickness detectors are respectively located below the two hollow parts at intervals in the vertical direction. The third roll thickness detector includes The device comprises a signal transmitter and a signal receiver, wherein the two third roll thickness detectors respectively transmit signals to the hollow arc through the signal transmitter, and detect whether the isolation paper tape roll reaches a preset thickness by receiving the signal reflected back by the isolation paper roll reel through the signal receiver. The preset thickness corresponds to the preset material tape amount. When at least one of the two third roll thickness detectors detects that the isolation paper tape roll reaches the preset thickness, the prompter is triggered to prompt the remaining material tape roll to be processed on the unwinding reel corresponding to the detected isolation paper tape roll to be transferred and placed on the unwinding turntable.

[0016] In the second aspect, an embodiment of the present invention also provides an injection molding device, including any of the above-mentioned automatic material changing and conveying devices for LED patch brackets, the LED patch bracket injection molding device is provided with a processing position for injection molding, the LED patch bracket injection molding device applies a traction force from the unloading mechanism to the processing position to the material strip to be processed, and applies a pushing force from the processing position to the receiving mechanism to the processed material strip.

[0017] The beneficial effects of the present invention are:

[0018] The automatic material changing and conveying device for the LED patch bracket provided by the present invention utilizes the unloading reel and the unloading turntable in the unloading mechanism to work together. When the amount of the material strip to be processed on the unloading reel is lower than the preset value, the remaining material strip is transferred to the unloading turntable to continue unloading, and at the same time the unloading reel can be loaded with a new material roll, thereby realizing non-stop material changing; the receiving mechanism similarly realizes non-stop material receiving through the cooperation of the receiving turntable and the receiving reel. The coordinated action of the unloading mechanism and the receiving mechanism enables the injection molding equipment to realize uninterrupted processing of the material strip to be processed, significantly improving production efficiency, and also avoiding the problem of the injection molding equipment being wasted due to the long time the glue stays in the screw of the injection molding machine during shutdown, causing the glue to age and turn yellow easily, resulting in the need for re-solution and injection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work, and these are all within the scope of protection 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 an LED patch bracket provided by an embodiment of the present invention;

[0021] Figure 2 This is a partial structural front view of a material discharging mechanism and a material receiving mechanism of an automatic material changing and conveying device for an LED patch bracket provided by an embodiment of the present invention;

[0022] Figure 3 This is a partial structural front view of an automatic material changing and conveying device for an LED patch bracket provided by 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 an LED patch bracket provided by an embodiment of the present invention;

[0024] Figure 5 This is a structural diagram of an LED patch bracket injection molding device provided by an embodiment of the present invention;

[0025] Description of reference numerals:

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

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. It should be noted that, in this article, relational terms such as first and second are only used 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 directions or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. Moreover, the terms "include", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further limitations, elements defined by the phrase "comprising..." do not preclude the presence of other identical elements in the process, method, article, or apparatus comprising the elements. The various features of the embodiments and examples of the present invention may be combined with each other if there is no conflict, and all are within the scope of protection of the present invention.

[0028] refer to Figures 1 to 4As an object of the present invention, an automatic reeling and conveying device 10 for LED chip holders is provided, comprising: a frame 1, a discharging mechanism 2, and a reeling mechanism 3, respectively disposed on the frame 1. The discharging mechanism 2 comprises a discharging reel 21 and a discharging turntable 22. The discharging reel 21 is used to rotate a reel of unprocessed tape exceeding a predetermined amount of tape, thereby releasing the unprocessed tape 20 for unloading. Specifically, when the unprocessed tape 20 is released, the unprocessed tape reel is unwound and straightened from the outside to the inside under the traction force of the automatic reeling and conveying device 10 and the processing device, and then fed to the processing device. The unprocessed tape reel is formed by winding the unprocessed tape 20 multiple times, with multiple LED chip holders (not shown) formed on the unprocessed tape 20. In the present invention, the unprocessed tape 20 is specifically a copper strip, and multiple LED chip holders (not shown) arranged in an array have been formed on the unprocessed tape 20 through a previous stamping process. The roll of unprocessed tape initially placed on the unwinding reel 21 typically weighs a considerable amount, for example, 200 to 300 kilograms. Preferably, a loop of isolation paper tape is placed between each pair of adjacent loops of unprocessed tape 20. The isolation paper tape is in a roll shape, with one unprocessed tape 20 sandwiched between each two loops, thereby reducing secondary contamination of the LED chip holder during processing.

[0029] The unloading turntable 22 is used to receive the remaining unprocessed tape rolls, which are less than or equal to a preset amount, after multiple unloadings. Once the majority of the unprocessed tape 20 has been unloaded and processed, the weight of the remaining unprocessed tape rolls is significantly reduced. The user can then manually or with a simple tool transfer the remaining unprocessed tape rolls to the unloading turntable 22. The preset amount of tape rolls can be determined based on the user's ease of handling, the time required, and the processing speed of the unprocessed tape 20, and is proportional to the radial thickness of the unprocessed tape rolls. The unloading turntable 22 rotates the remaining unprocessed tape rolls to release more unprocessed tape 20, thereby achieving uninterrupted unloading. During the unloading process, LED SMD brackets are processed in batches of a predetermined number. For example, an LED SMD bracket injection molding device 40 is used as the processing device to injection mold the LED SMD brackets on the predetermined length of unprocessed tape 20 that enters the unloading process. The number of LED SMD brackets processed in each injection molding operation can be set according to actual needs. When the unwinding turntable 22 is working, the unwinding reel 21 can receive a new material roll to be processed so as to drive the new material roll to be processed to perform a new round of unwinding.

[0030] The rewinding mechanism 3 is used to wind up the processed material strip 30. This processed material strip 30 is formed after the LED chip holders on the processed material strip 20 are processed. The wound processed material strip 30 is wound into a processed material roll. Once a length of the processed material strip 20 is processed in the processing device, it becomes the processed material strip 30. As the unwinding mechanism 2 unwinds the material, the rewinding mechanism 3 takes it up, gradually winding the processed material strip 30 into a processed material roll.

[0031] As described above, since the unloading mechanism 2 of the automatic material reloading and conveying device 10 for LED patch brackets provided by the present invention uses a material unloading reel 21 and a material unloading turntable 22 to unload the material strip 20 to be processed, the material unloading turntable 22 serves as a transitional unloading function, providing sufficient time for the user to place a new roll of material strip to be processed, thereby enabling the processing device to continuously and highly automatically process the LED patch brackets on each predetermined length of the material strip 20 to be processed. This avoids the need for the processing device to stop waiting for the material unloading reel 21 to be reloaded, and at the same time avoids problems such as the easy aging and yellowing of the rubber material when the LED patch bracket injection molding device 40 is stopped, requiring re-solution, thereby significantly improving the product quality of the processed LED patch brackets.

[0032] Please refer to Figure 1 and Figure 2 Specifically, the material rewinding mechanism 3 includes a rewinding reel 31 and a rewinding turntable 32. The rewinding reel 31 is used to rewind the processed material strip 30 into a processed material roll. When the processed material roll reaches a preset rewinding amount, the processed material strip 30 can be manually cut using a tool such as scissors. The rewinding turntable 32 is used to rewind the remaining processed material strip 30 after cutting. The preset rewinding amount can be determined based on the user's convenience in handling the processed material roll, the time required, the processing speed, and other factors, and is proportional to the radial thickness of the processed material roll. Therefore, the material receiving mechanism 3 adopts the material receiving reel 31 and the material receiving turntable 32 to reel up the processed material strip 30. The material receiving turntable 32 plays the role of transitional material receiving, providing sufficient time for moving the processed material strip 30 on the material receiving reel 31 away, while ensuring the uninterrupted operation of the automatic material changing and conveying device 10 of the LED patch bracket, and further ensuring that the processing device continuously and highly automatically processes the LED patch bracket on each predetermined length of the material strip 20 to be processed.

[0033] Please refer to Figure 1 and Figure 2Preferably, the unloading mechanism 2 further includes a unloading sensor 23 and a unloading motor 24. The unloading sensor 23 is used to detect the material strip 20 to be processed passing through it, and the unloading motor 24 is used to drive the rotation of the unloading turntable 22. When the unloading sensor 23 detects that the material strip 20 to be processed meets a first preset condition (for example, the pressure value applied to the unloading sensor 23 is greater than zero or the relative speed is greater than zero), the unloading motor 24 is controlled to stop working and wait for the LED patch holders on the material strip 20 to be processed to be processed. When the unloading sensor 23 detects that the material strip 20 to be processed does not meet the first preset condition (for example, no pressure is applied or there is no relative motion), the unloading motor 24 is controlled to start working. After processing is completed, the unloading motor 24 drives the unloading turntable 22 to release the material strip 20 to be processed and transport the LED patch holders to be processed to the processing position. The unloading 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 unloading motor 24 to ensure accurate unloading of the material strip 20 from the unloading turntable 22.

[0034] Please refer to Figure 1 and Figure 2 Preferably, the receiving mechanism 3 also 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 (for example, the pressure value is equal to zero or the relative speed is equal to zero), the receiving motor 34 is controlled to stop working and wait for the LED patch bracket on the material strip 20 to be processed to be processed. When the receiving sensor 33 detects that the processed material strip 30 does not meet the second preset condition (for example, pressure is applied or there is relative movement), the receiving motor 34 is controlled to start working, so that after the processing is completed, the receiving motor 34 drives the receiving turntable 32 to reel up the processed material strip 30. The receiving sensor 33 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 receiving motor 34 to ensure the accuracy of the receiving.

[0035] Please refer to Figure 2Specifically, the unloading sensor 23 and the receiving sensor 33 are both configured as pressure sensors. The first preset condition is that the pressure applied by the unprocessed material strip 20 to the unloading sensor 23 is greater than a first preset pressure value (e.g., 0), and the 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 unprocessed material strip 20 is not subjected to traction and the processed material strip 30 is not subjected to pushing force. The unprocessed material strip 20 sags under its own weight and presses down on the unloading sensor 23. At this time, the unloading sensor 23 detects a pressure value greater than 0, and the unloading motor 24 stops working. After processing is completed, the unprocessed material strip 20 is subjected to traction and moves away from the unloading sensor 23. At this time, the unloading sensor 23 does not detect a pressure value, and the unloading motor 24 starts working. At the same time, the processed material strip 30 is subjected to pushing force and moves away from the receiving sensor 33. At this time, the receiving sensor 33 does not detect a pressure value, and the receiving motor 34 starts working. In this way, the material discharging motor 24 and the material receiving motor 34 are started synchronously to coordinate the material feeding and receiving.

[0036] Please refer to Figure 1 and Figure 3 Preferably, the frame 1 includes a support 11 and a pillar 12. The pillar 12 is fixedly connected to the support 11 and extends in the vertical direction. The unloading turntable 22 and the receiving turntable 32 are rotatably mounted vertically on the pillar 12, the unloading turntable 22 is located above the receiving turntable 32 and the rotating axes of the two turntables are arranged in parallel. The unloading reel 21 and the receiving reel 31 are rotatably supported on the support 11, the unloading reel 21 and the receiving reel 31 are horizontally spaced and parallel in the vertical direction, and the unloading reel 21 is located above the receiving reel 31. This layout makes the unloading mechanism 2 and the receiving mechanism 3 compact in structure, which facilitates the smooth and accurate displacement of the material strip 20 to be processed and the processed material strip 30 during the unloading and receiving processes.

[0037] Please refer to Figure 1Specifically, the support 11 includes four support plates 111 spaced horizontally and parallel in the vertical direction. The four support plates 111 are arranged vertically from top to bottom as a first layer, a second layer, a third layer, and a fourth layer. The first layer and the second layer each rotatably support a discharge reel 21. The two discharge reels 21 synchronously drive the unprocessed material rolls thereon to discharge the material, and the two discharge reels 21 share a discharge turntable 22. When the unprocessed material roll driven by one of the two discharge reels 21 has a remaining unprocessed material roll after multiple discharges, the remaining unprocessed material roll is transferred and placed on the discharge turntable 22. Generally speaking, when the LED chip holders on the two processing strips 20 are injection molded in two different processing stations of the LED chip holder injection molding device 40 with two different injection molds, either the lengths of the two processing strips 20 entering the two processing stations are different, or the initial thicknesses of the two processing strips are different. Therefore, the probability that the remaining processing strips obtained after unloading from the two strips need to be transferred to the unloading turntable 22 at the same time is very low. Therefore, providing 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. Both take-up reels 31 share a take-up turntable 32, allowing them to simultaneously take up the processed material roll. When the processed material roll on one of the two take-up reels 31 reaches a predetermined take-up amount and needs to be cut, the cut end of the processed material roll 30 remaining after the cut is wound onto the take-up turntable 32, where it is then reeled up as the take-up turntable 32 rotates. For the same reason as the probability of both remaining unprocessed material rolls needing to be transferred to the unwind turntable 22 at the same time is very low, the probability of both processed material rolls needing to be cut simultaneously, and thus the cut ends of both remaining processed material rolls 30 needing to be wound onto the take-up turntable 32 at the same time, is also very low. Therefore, providing a shared take-up turntable 32 further simplifies the structure and reduces costs. To sum up, the automatic material changing and conveying device 10 for the LED patch bracket adopts two unloading reels 21 for unloading and two receiving reels 31 for receiving, which can increase the total number of LED patch brackets processed in one processing operation, thereby improving the processing efficiency, and adopts a shared unloading turntable 22 and a receiving turntable 32, which can not only ensure uninterrupted unloading and feeding of materials, but also simplify the structure and reduce costs.

[0039] Please refer to Figure 1 and Figure 2Preferably, the automatic material changing and conveying device 10 for the LED patch bracket 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 base plate and a first roll thickness detector is suspended on the support arm. The prompter can specifically adopt a voice announcer, a display, etc. In the present invention, the prompter adopts a voice announcer. The first roll thickness detector faces the unwinding reel 21 rotatably supported on the upper side of the first-layer support base plate and is used to detect the thickness of the material roll to be processed driven by the unwinding reel 21. Another first roll thickness detector is arranged on the lower side of the first-layer support base plate, and the other first roll thickness detector faces the other unwinding reel 21 rotatably supported on the second-layer support base plate and is used to detect the thickness of the material roll to be processed driven by the other unwinding reel 21. A second roll thickness detector is respectively arranged on the lower side of each of the second-layer support base plate and the third-layer support base plate. The two first roll thickness detectors face the take-up reels 31 rotatably supported on the second and third support plates, respectively, and are configured to detect the thickness of the processed web rolls being taken up 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 web to be processed is less than a predetermined web quantity, a prompter, receiving a control instruction generated based on the detection result, is triggered to emit a voice message, pre-stored in a memory, prompting the transfer of the detected remaining web to be processed and placing it on the unwinding turntable 22. When at least one of the two second roll thickness detectors detects that the thickness of the processed web is equal to the predetermined web quantity, the prompter is also triggered to emit a corresponding voice message prompting the transfer of the processed web 30 and the winding of the remaining web 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 unprocessed or processed roll by determining whether the signal emitted by the transmitter is reflected by the unprocessed or processed roll 20 or the processed roll 30. When the unwinding and winding turntables 22 and 32 function as transitional unwinding and winding operations, they allow time to replace a new unprocessed roll onto the unwinding reel 21 and to transfer a processed roll from the winding reel 31, respectively. After the replacement and transfer, the front free end of the new material strip 20 to be processed is manually connected to the tail free end of the material strip 20 to be processed on the unwinding turntable 22 after continuous unwinding by tape or masking paper, and the processed material strip 30 with a preset thickness wound on the receiving turntable 32 is cut off in time and the cut end of the processed material strip 30 located on one side of the processing device is wound onto the empty receiving reel 31.Therefore, the automatic material changing and conveying device 10 of the LED patch bracket is able to timely and accurately detect the thickness of the corresponding remaining material rolls to be processed and the processed material rolls on the unwinding reel 21 and the receiving reel 31 by setting two first roll thickness detectors and two second roll thickness detectors, so as to use the prompter to prompt the corresponding information to remind the user to perform the corresponding operation in time. It not only has a high degree of automation, but also avoids the user's continuous naked eye observation and saves manpower, ensuring that the unwinding and receiving of the LED patch bracket automatic material changing and conveying device 10 are carried out uninterruptedly, significantly improving production efficiency and improving the processing quality of the product.

[0040] Please refer to Figure 1 and Figure 4Preferably, the frame 1 also includes a support 13, and the LED patch bracket automatic material changing and conveying device 10 also includes two isolation paper reels 5 and two third roll thickness detectors arranged on the support 13. The above-mentioned prompter can be set on the support 13. The two sides of the support 13 are fixedly connected to the four supporting base plates 111 and the pillars 12 respectively. The two isolation paper reels 5 are driven by two paper reel motors respectively, so as to separate the isolation paper tapes between each two adjacent turns of the material strip 20 to be processed driven by a discharge reel 21 and rewind them into isolation paper tape rolls. The isolation paper tape is specifically made of sulfur-free paper. Preferably, the two isolation paper reels 5 are respectively higher than the two discharge reels 21 in the vertical direction, which makes it easier to separate the isolation paper. In this embodiment, the two isolation paper reels 5 are respectively fixedly connected to the support 13 through a support plate 6. The first extension direction of the four support plates 111 away from 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 independent operation of the processing material roll, the processing material roll, and the release paper roll, without interfering with each other, and facilitates intuitive observation of the working status of each reel and turntable. Both release paper reels 5 are provided with a hollow portion, which can be a plurality of hollow arcs with central arcs passing through the same concentric circle. Two third roll thickness detectors are located vertically spaced below the two hollow portions. The third roll thickness detectors include a signal transmitter and a signal receiver. The two third roll thickness detectors transmit signals to the hollow arcs through the signal transmitters, and the signal receivers detect whether the release paper roll has reached a preset thickness by detecting whether the release paper roll has been reflected back from the release paper reel 5. The preset thickness can be set to correspond to a preset material volume in a conversion ratio. When at least one of the two third roll thickness detectors detects that the separator paper tape roll has reached a preset thickness, the indicator is triggered to prompt the remaining unprocessed roll on the unwinding reel 21 corresponding to the detected separator paper tape roll to be transferred and placed on the unwinding turntable 22. It is understood that the automatic material change and conveying device 10 for LED patch holders includes a control device, such as a CPU or PLC. The control device includes a memory and a controller, and the control device is electrically connected to each sensor and each roll thickness detector. The memory stores a correspondence table and corresponding detection result information corresponding to the thickness of the unprocessed and processed rolls detected by the first and second roll thickness detectors, respectively, and the preset roll amount and the preset rewind amount. Similarly, the memory also stores a correspondence table and corresponding detection result information corresponding to the thickness of the separator paper tape roll detected by the third roll thickness detector and the preset roll amount. The controller controls the operation of each motor and the indicator accordingly based on the received detection result information.It can be seen that the automatic material changing and conveying device 10 of the LED patch bracket detects the thickness of the isolation paper tape roll respectively through the two third roll thickness detectors. Although there are certain differences in thickness and ductility between the isolation paper tape and the paper tape to be processed, the two are in a certain corresponding relationship in length. In addition, the thickness of the isolation paper tape roll is also in a corresponding relationship with the preset material tape amount. That is to say, the decrease in the thickness of the material tape roll to be processed and the increase in the thickness of the isolation paper tape roll are in a certain proportion. Therefore, not only can the isolation paper be separated and reeled by the two isolation paper reel disks 5, but the two third roll thickness detectors can also detect the thickness of the two isolation paper rolls in a timely and accurate manner, which is equivalent to timely and accurately detecting the thickness of the remaining material tape roll to be processed on the two unwinding reels 21, and then using the prompter to prompt the corresponding information to remind the user to perform the corresponding operation in time. It has a high degree of automation, significantly improves production efficiency and improves the processing quality of the product.

[0041] For the embodiment of the automatic material changing and conveying device 10 for LED patch brackets using two isolation paper reels 5 and two third roll thickness detectors, not only can the third roll thickness detector be used to detect the thickness of the two isolation paper reels 5 to detect the thickness of the remaining material rolls to be processed on the two unwinding reels 21, but the detected thickness of the two isolation paper reels 5 can also be used as a trigger for the prompt information pre-stored in the storage device to transfer the two isolation paper rolls so that the prompter can prompt the user to perform the corresponding operation in time.

[0042] In addition, as another improvement, it is known that the automatic material change and conveying device 10 for the LED patch bracket has reel motors that respectively drive each unwinding reel 21, each take-up reel 31, and each isolation paper reel 5. The controller can automatically control the start and stop of each reel motor, the unwinding motor 24, and the take-up motor 34 according to the detection results of each detector and each sensor, so that they work together in a coordinated manner. For example, the reel motor of the isolation paper reel 5 is controlled to start and stop synchronously with the reel motor of the corresponding unwinding reel 21 or the reel motor of the unwinding turntable 22. For another example, when the first roll thickness detector detects that the thickness of the material strip to be processed is less than the preset material strip amount, the reel motor of the unwinding reel 21 is correspondingly turned off, and the unwinding motor 24 of the unwinding turntable 22 is automatically started, or the control panel is manually operated to manually start after the remaining material strip to be processed is manually placed on the unwinding turntable 22.

[0043] In addition, as another improvement, a first reel motor speed regulator 7, a turntable motor speed regulator 8, and a second reel motor speed regulator 9, all electrically connected to the controller, are disposed on the support 13 from top to bottom. The first reel motor speed regulator 7 allows for manual adjustment of the speed of the reel motors for each unwinding reel 21 and each winding reel 31; the turntable motor speed regulator 8 allows for manual adjustment of the speed of the unwinding motor 24 and the winding motor 34; and the second reel motor speed regulator 9 allows for manual adjustment of the speed of the reel motors for each release paper reel 5. The controller can match the various aforementioned control modes based on the speed-related parameters input via the speed regulators. Through manual settings, it can accommodate the conveying and processing of different parameters of the material strip 20 to be processed, such as different ductility and total length. Furthermore, the speed of the corresponding motors can be slowed down during cutting and transfer operations, thereby ensuring the reliable implementation of each operation. In addition, before the two situations with very low probabilities of the remaining unprocessed material strip rolls obtained after unloading need to be transferred to the unloading turntable 22 at the same time or the processed material strip rolls need to be cut at the same time, and the two remaining cut ends of the processed material strips 30 to be formed need to be wound onto the receiving turntable 32 at the same time, the first reel motor speed regulator 7 can be used to adjust the rotation speed of the two unloading reels 21 or the two unloading reels 31 respectively, so as to stagger the time when the two remaining unprocessed material strip rolls on the two unloading reels 21 need to be transferred, and also stagger the time when the processed material strip rolls on the two receiving reels 31 need to be cut, thereby preventing the occurrence of either of the two situations with very low probabilities.

[0044] As another improvement, multiple CCDs can be used to replace each roll thickness detector, and the image recognition function of the CCD can be used to detect the thickness of the above-mentioned material roll to be processed, the processed material roll and the isolation paper roll, so as to control the prompter to prompt the corresponding information according to the results of each thickness detection.

[0045] As another object of the present invention, please refer to Figure 5 Combined with Figures 1 to 4, provides an LED patch bracket injection molding equipment, including: an LED patch bracket injection molding device 40 and any one of the above LED patch bracket automatic material changing and conveying devices 10. The LED patch bracket injection molding equipment can obtain the beneficial effects brought by any one of the LED patch bracket automatic material changing and conveying devices 10, which will not be repeated here. The LED patch bracket injection molding device 40 is provided with a processing position and is used to perform injection molding processing on the LED patch bracket on the section of the material strip 20 to be processed that is located at the processing position. The LED patch bracket injection molding device 40 applies a traction force to the material strip 20 to be processed, specifically the unloading reel 21 or the unloading turntable 22, to move toward the processing position by the unloading mechanism 2, and applies a pushing force to the processed material strip 30, specifically the rewinding reel 31 or the rewinding turntable 32, to move from the processing position to the receiving mechanism 3. Furthermore, when the LED patch bracket injection molding device 40 needs to perform processing for the first time at the processing position or after each processing is completed, a pulling force is applied to the unprocessed material strip 20, causing the unprocessed material strip 20 to move away from the unloading sensor 23. The unloading sensor 23 does not detect the unprocessed material strip 20, and the unloading motor 24 is controlled to start working. At the same time, a pushing force is applied to the processed material strip 30, causing the processed material strip 30 to abut against the receiving sensor 33. The receiving sensor 33 detects the processed material strip 30, and the receiving motor 34 is controlled to start working. At this time, the driving force and the pulling force applied by the unloading turntable 22 act together on the unprocessed material strip 20, and the driving force and the pushing force applied by the receiving turntable 32 act together on the processed material strip 30, so as to transport the next length of the unprocessed material strip 20 to the processing position for processing. Furthermore, when the LED chip bracket injection molding device 40 is processing at the processing position, it does not apply traction to the processing strip 20, causing the processing strip 20 to sag and contact the unloading sensor 23. The unloading sensor 23 then detects the processing strip 20, and the unloading motor 24 is controlled to stop working. At the same time, no pushing force is applied to the processed strip 30, causing the processed strip 30 to move away from the receiving sensor 33. The receiving sensor 33 does not detect the processed strip 30, and the receiving motor 34 is controlled to stop working. This ensures that when the processing strip 20 is being processed, the processing strip 20 is not subjected to the driving force and traction force applied by the unloading turntable 22, and the processed strip 30 is not subjected to the driving force and pushing force applied by the receiving turntable 32. Therefore, the processed processing strip 20 is not subjected to any external forces other than the processing force, ensuring 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 for the injection molding of LED chip brackets.

[0046] The above description is only a specific embodiment of the present invention. Those skilled in the art will clearly understand that for the convenience and brevity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present invention is not limited to this. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention.

Claims

1. Automatic material changing and conveying device for LED patch bracket, characterized in that: include: frame; A material unloading mechanism is provided on the frame, and the material unloading mechanism includes a material unloading reel and a material unloading turntable. The material unloading reel is used to drive the material tape roll to be processed that is larger than the preset material tape amount to rotate. A plurality of LED patch holders are formed on the material tape to be processed. The material unloading turntable is used to receive the remaining material tape roll to be processed and further unload the material. During the unloading process, the LED patch holders are processed in batches according to a predetermined number. When the material unloading turntable is working, the material unloading reel can receive a new material tape roll to be processed to wait for driving the new material tape roll to be processed, thereby performing a new round of unloading. a material receiving mechanism, provided on the frame, comprising a material receiving reel and a material receiving turntable, wherein the material receiving reel is used to receive the processed material strip to obtain a processed material strip roll, and when the processed material strip roll reaches the preset receiving amount, the processed material strip is cut off, and the material receiving turntable is used to receive the processed material strip remaining after the cutting; A control device includes a storage and a controller.

2. The automatic material changing and conveying device for LED patch brackets according to claim 1 is characterized in that: The roll of unprocessed tape that is larger than the preset tape quantity is driven by the unwinding reel to rotate so as to release the unprocessed tape for unwinding. The unprocessed tape roll is formed by winding the unprocessed tape around multiple times. The remaining unprocessed tape roll is obtained by unwinding the unprocessed tape roll multiple times and meeting the requirement of being less than or equal to the preset tape quantity. The unwinding turntable drives the remaining unprocessed tape roll to rotate to further release the unprocessed tape for further unwinding. The processed tape is formed after the LED patch bracket on the unprocessed tape has been processed, and a circle of isolation paper tape is sandwiched between every two circles of the unprocessed tape.

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

4. The automatic material changing and conveying device for LED patch brackets according to claim 3 is characterized in that: The material receiving mechanism includes a material receiving sensor and a material receiving motor. The material receiving sensor is used to detect the processed material strip passing through it, and the material receiving motor is used to drive the rotation of the material receiving turntable. When the material receiving sensor detects that the processed material strip meets the second preset condition, the material receiving motor is controlled to stop working, thereby waiting for the LED patch bracket on the material strip to be processed that is sent to the processing position to be processed to be processed. When the material receiving sensor detects that the processed material strip does not meet the second preset condition, the material receiving motor is controlled to start working, so that after the LED patch bracket is processed at the processing position, the material receiving motor further drives the material receiving turntable to reel in the processed material strip. For processing the material strip, the material discharge sensor and the material receiving sensor are both set as pressure sensors, the first preset condition is set as the pressure value applied by the material strip to be processed on the material discharge sensor is greater than the first preset pressure value, and the second preset condition is set as the pressure value applied by the processed material strip to the material receiving sensor is equal to the second preset pressure value, or, the material discharge sensor and the material receiving sensor are both set as speed sensors, the first preset condition is set as the speed value of the relative movement of the material strip to be processed on the material discharge sensor is greater than the first preset speed value, and the second preset condition is set as the speed value of the relative movement of the material strip to be processed on the material receiving sensor is equal to the second preset speed value.

5. The automatic material changing and conveying device for LED patch brackets according to claim 1 is characterized in that: The frame includes a support and a pillar, the pillar is fixedly connected to the support, the pillar extends in the vertical direction, the unloading turntable and the winding turntable are rotatably mounted vertically on the pillar, the unloading turntable is located above the winding turntable in the vertical direction and the respective rotating shafts of the two turntables are arranged in parallel, the support rotatably supports the unloading reel and the winding reel, the unloading reel and the winding reel are horizontally spaced and parallel in the vertical direction, and the unloading reel is located above the winding reel in the vertical direction.

6. The automatic material changing and conveying device for LED patch brackets according to claim 5, characterized in that: The support includes four supporting base plates horizontally spaced and parallel in the vertical direction, and the four supporting base plates are formed in sequence from top to bottom in the vertical direction as a first supporting base plate, a second supporting base plate, a third supporting base plate and a fourth supporting base plate, the first supporting base plate and the second supporting base plate respectively rotate to support the unwinding reel, and the two unwinding reels synchronously drive the material strip to be processed thereon to unwind synchronously, and the two unwinding reels share the unwinding turntable, so that when the material strip to be processed driven by one of the two unwinding reels is unwound multiple times and the remaining material to be processed is obtained, After the material strip is wound, the remaining material strip to be processed is transferred and placed on the unwinding turntable, and the third-layer support seat plate and the fourth-layer support seat plate respectively rotate to support one of the take-up reels, and the two take-up reels share one take-up turntable, so that the two take-up reels can rewind the processed material strip at the same time, and when the processed material strip on one of the two take-up reels reaches the preset rewinding amount and needs to be cut off, the cut head of the processed material strip that will be formed after the cut is wound onto the take-up turntable, and thus is rewound as the take-up turntable rotates.

7. The automatic material changing and conveying device for LED patch brackets according to claim 3 is characterized in that: The automatic material changing and conveying device of the LED patch bracket also includes a support arm, two first roll thickness detectors, two second roll thickness detectors and a prompter. The support arm is fixed to the first support base plate and supports a first roll thickness detector in suspension on the support arm. The first roll thickness detector and the second roll thickness detector both include a signal transmitter and a signal receiver. The prompter is a voice broadcaster. The first roll thickness detector faces the unwinding reel rotatably supported on the upper side of the first support base plate and is used to detect the thickness of the material roll to be processed driven by the unwinding reel. Another first roll thickness detector is arranged on the lower side of the first support base plate. The other first roll thickness detector faces the other unwinding reel rotatably supported on the second support base plate and is used to detect the thickness of the material roll to be processed driven by the other unwinding reel. The second support base plate and A second roll thickness detector is respectively arranged on the lower side surface of each of the third support base plates, and the two second roll thickness detectors respectively face the take-up reels respectively supported by the third support base plate and the fourth support base plate, and are respectively used to detect the thickness of the processed material rolls respectively taken up by the two take-up reels. When at least one of the two first roll thickness detectors detects that the thickness of the remaining material roll to be processed corresponds to less than the preset material amount, the prompter is triggered to prompt the remaining material roll to be processed to be transferred and placed on the unwinding turntable. When at least one of the two second roll thickness detectors detects that the thickness of the processed material roll corresponds to the preset winding amount, the prompter is triggered to prompt to cut the processed material roll and wind the cut end of the remaining material roll onto the take-up turntable.

8. The automatic material changing and conveying device for LED patch brackets according to claim 7, characterized in that: The frame also includes a support platform, and the automatic material changing and conveying device of the LED patch bracket also includes two isolation paper reels and two third roll thickness detectors arranged on the support platform, and each of the unwinding reel, the receiving reel and the isolation paper reel is provided with a reel motor, and the reel motor of the isolation paper reel and the reel motor of the corresponding unwinding reel or the reel motor of the unwinding turntable are controlled to start and stop synchronously. The prompter is arranged on the support platform, and the two sides of the support platform are respectively fixedly connected to the four support base plates and the pillars, and the two isolation paper reels are respectively fixedly connected to the support platform through a support plate, and the first extension direction of the four support base plates away from the support platform is perpendicular to the second extension direction of the two support plates relative to the support platform. The two isolation paper reels are respectively used to separate the isolation paper tape between each two adjacent circles of the material tape to be processed driven by the unwinding reel and rewind them into isolation paper tape rolls, and in the vertical direction, the two The isolation paper reel is higher than the two unwinding reels, and a hollow portion is provided on each of the two isolation paper reels. The hollow portion includes a plurality of hollow arcs whose central arcs pass through the same concentric circle. Two third roll thickness detectors are respectively located below the two hollow portions at intervals in the vertical direction. The third roll thickness detector includes a signal transmitter and a signal receiver. The two third roll thickness detectors respectively transmit signals to the hollow arcs through the signal transmitter, and detect whether the isolation paper tape roll reaches a preset thickness by receiving the signal reflected back by the isolation paper reel through the signal receiver. The preset thickness corresponds to the preset material tape amount. When at least one of the two third roll thickness detectors detects that the isolation paper tape roll reaches the preset thickness, the prompter is triggered to prompt the remaining material tape roll to be processed on the unwinding reel corresponding to the detected isolation paper tape roll to be transferred and placed on the unwinding turntable.

9. The automatic material changing and conveying device for LED patch brackets according to claim 8, characterized in that: The support platform is provided with a first reel motor speed regulator, a turntable motor speed regulator and a second reel motor speed regulator which are all electrically connected to the controller from top to bottom. The first reel motor speed regulator is electrically connected to the reel motors of the unwinding reel and the rewinding reel, the turntable motor speed regulator is electrically connected to the unwinding motor and the rewinding motor, and the second reel motor speed regulator is electrically connected to the reel motor of the isolation paper reel.

10. Injection molding equipment, characterized in that, An automatic material changing and conveying device for an LED patch bracket comprising the invention as claimed in any one of claims 1 to 9, wherein the injection molding equipment is provided with a processing position for injection molding, the injection molding equipment applies a traction force from a discharge mechanism to the material strip to be processed so as to move the material strip toward the processing position, and applies a pushing force from the processing position to the receiving mechanism so as to move the material strip that has been processed so as to move the material strip toward the receiving mechanism, the traction force and the pushing force cooperate with the driving force of the discharge turntable and the receiving turntable.

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