Automatic injection molding equipment for LED modules

Abstract

The present invention discloses an automatic injection molding device for LED modules, comprising an unwinding mechanism, a vertical injection molding machine, a rewinding mechanism, and a transfer mechanism. The connecting wires, i.e., conductive wires, that constitute the LED modules are stretched from the unwinding roller of the unwinding mechanism under the action of the transfer mechanism and extend to the injection molding module of the vertical injection molding machine. The connecting wires are injection-molded into the plastic-coated shell of the LED module on the injection molding module and continue to extend until they are received by the rewinding mechanism. The present invention designs an automatic injection molding device for LED modules, which uses an unwinding mechanism, a rewinding mechanism, and a transfer mechanism to complete the automated production of the injection molding process of the LED modules, and correspondingly sets a variety of sensors to control various operational or safety hazards, thereby improving production efficiency and reducing labor costs. The overall structure of the device is simple and the cost is low. At the same time, the equipment used in subsequent processes can be arbitrarily spliced, promoting the development of intelligent and automated production.

Description

Technical Field

[0001] The present invention relates to the technical field of LED module assembly, and more particularly to an automatic injection molding device for an LED module. Background Art

[0002] LED lights are now widely used in various fields due to their advantages such as energy saving, ultra-long service life and low price. Compared with other LED products, LED modules are simpler in structure and electronics, smaller in size, and have the advantages of large light-emitting angle, high brightness and low light decay. They are one of the most widely used LED products and are widely used in various decoration and renovation industries.

[0003] An LED module includes a substrate on which LED components are provided, connecting wires used to connect the LED modules, and a plastic coating covering the substrate. The plastic coating mostly serves as a reinforcement or packaging material and is usually made of plastic materials such as PVC. Therefore, an injection molding machine and an injection mold are often set up on the LED module production line to form the plastic coating shell. Generally, the production of LED modules requires less space and the finished product volume is small, so vertical injection molding machines are often used for production. However, since the closing, injection, and opening directions of the vertical injection molding machine are perpendicular to the direction of gravity, and the injection molding and shaping of the injection molding machine are completed on the connecting line, it is not conducive to the automatic transportation of products in and out. Manual handling and storage are required, which increases labor costs and reduces production efficiency. It is also not conducive to the progress of subsequent processes, which is far from the development trend of existing intelligent production and automated production.

[0004] The above shortcomings need to be improved. Summary of the Invention

[0005] In order to overcome the deficiencies of the existing technology, the present invention provides an automatic injection molding device for an LED module.

[0006] The technical solution of the present invention is as follows:

[0007] An automatic injection molding device for LED modules, comprising

[0008] An unwinding mechanism, the unwinding mechanism comprising a plurality of unwinding rollers, and connecting lines are provided on the unwinding rollers;

[0009] A vertical injection molding machine, comprising an injection molding module, wherein the injection molding module is configured to injection-mold a plastic-coated housing on the connecting line;

[0010] A winding mechanism, comprising a plurality of winding rollers;

[0011] The transfer mechanism is driven by the transfer mechanism to extend the connecting line from the unwinding roller, pass through the injection molding module, and be wound up and fixed on the winding roller.

[0012] The above-mentioned automatic injection molding equipment for LED modules further includes a residual material transfer mechanism, the residual material transfer mechanism including a residual material clamp, a residual material sliding mechanism and a residual material blowing nozzle, the residual material sliding mechanism including a residual material slide rail and a residual material slider, the residual material slider slides on the residual material slide rail, and the residual material clamp is fixed to the residual material slider;

[0013] The residual material slider moves to the material taking setting position, and the residual material clamp extends into the injection module to clamp the injection molding residual material under the drive of the residual material slider. The residual material slider drives the residual material clamp to move to the blowing setting position on the residual material slide rail. The residual material blowing nozzle is arranged near the blowing setting position. The residual material clamp releases the injection molding residual material, and the residual material blowing nozzle blows out the injection molding residual material and drops it at a specified position.

[0014] Furthermore, a residual material sensor is provided on the residual material clamp.

[0015] The residual material sensor detects whether there is the injection molding residual material on the residual material clamp when the residual material slider moves to the blowing material setting position. If there is no injection molding residual material, the LED module automatic injection molding equipment suspends operation;

[0016] The residual material sensor detects whether the residual material exists in the residual material clamp after the residual material blowing nozzle blows. If the residual material exists, the automatic injection molding equipment for LED modules suspends operation.

[0017] Furthermore, a strong magnetic slider is provided inside the residual material slide rail, a strong magnetic block is provided inside the residual material slider, the residual material slider is sleeved on the residual material slide rail and is slidably connected to the residual material slide rail, and the residual material cylinder is connected at both ends inside the residual material slide rail, and the residual material cylinder pushes the strong magnetic slider to slide inside the residual material slide rail, and the strong magnetic slider drives the residual material slider to slide outside the residual material slide rail through the strong magnetic block.

[0018] In the above-mentioned automatic injection molding equipment for LED modules, a feed fixed port and a unwinding guide wheel are provided between the unwinding roller and the injection module. The number of the unwinding rollers is the same as the number of the feed fixed ports, and the unwinding guide wheel is provided with unwinding guide grooves, the number of which is the same as the number of the unwinding rollers.

[0019] Driven by the transfer mechanism, the connecting line is pulled out from the unwinding roller, passes through the feed fixed port, and extends into the injection mold along the unwinding guide groove.

[0020] Furthermore, the feed fixed port is provided with a feed sensor for sensing whether the connecting wire exists. If the connecting wire does not exist on the feed fixed port, the automatic injection molding device for the LED module suspends operation.

[0021] The above-mentioned automatic injection molding equipment for LED modules has an auxiliary stripping plate arranged near the injection module, and the auxiliary stripping plate is connected to a lifting cylinder, which drives the auxiliary stripping plate to move up and down, and the movement frequency of the auxiliary stripping plate is the same as the movement frequency of the stripping plate of the injection module.

[0022] Furthermore, the auxiliary stripping plate is provided with limiting grooves having the same number as the connecting lines, and the connecting lines extend into the injection mold along the limiting grooves.

[0023] Furthermore, a demoulding pressing roller is provided above the auxiliary demoulding plate.

[0024] The above-mentioned automatic injection molding equipment for LED modules, the transferring mechanism includes a transferring fixture, an up and down transferring mechanism and a front and back transferring mechanism, the transferring fixture is fixed on the up and down transferring mechanism, the up and down transferring mechanism is arranged on the front and back transferring mechanism, the up and down transferring mechanism drives the transferring fixture to move up and down, the front and back transferring mechanism drives the transferring fixture to move forward and backward through the up and down transferring mechanism, the transferring fixture clamps the connecting wire and pulls the connecting wire.

[0025] Furthermore, the front and rear transfer mechanisms are provided with a front limit point, a rear limit point and an origin, and the front limit point, the rear limit point and the origin are all provided with displacement sensors.

[0026] Furthermore, the front-rear transfer mechanism drives the up-down transfer mechanism to move from the origin to the front limit point and pause for a certain period of time, and then moves from the front limit point to the origin and pauses, at which time the control center counts.

[0027] In the above-mentioned automatic injection molding equipment for LED modules, the winding roller rotates coaxially with the winding motor, and the winding motor drives the winding roller to rewind the connecting wire.

[0028] Furthermore, when the injection number of the injection molding module reaches the set winding number, the winding motor stops after running for a certain period of time, and the recorded injection number is reset to zero.

[0029] Furthermore, a winding sensing device is provided between the winding mechanism and the injection mold, the winding sensing device including a winding sensor and a sensing lever, the connecting line is passed downward around one end of the sensing lever, the other end of the sensing lever is provided above the winding sensor, and the winding sensor is connected to the winding motor;

[0030] The winding motor drives the winding roller to wind up the connecting line, and the connecting line drives one end of the sensing lever to move upward, and the other end of the sensing lever to move downward. The winding sensor senses the sensing lever, and the winding motor pauses.

[0031] In the above-mentioned automatic injection molding equipment for LED modules, a plurality of winding guide wheels are arranged between the winding mechanism and the injection module, and the winding guide wheels are provided with the same number of winding guide grooves as the number of the connecting wires. The connecting wires extend from the injection module and extend along the winding guide grooves to the winding roller.

[0032] The above-mentioned automatic injection molding equipment for LED modules has a winding and swinging device arranged between the winding mechanism and the injection module. The winding and swinging device includes a swinging rail, a swinging slider and a wire passing plate. The wire passing plate is fixed on the swinging slider. Limit blocks are arranged at both ends of the swinging rail. The swinging slider slides left and right along the swinging rail between the limit blocks.

[0033] Furthermore, the wire passing plate is provided with the same number of discharge fixed ports and discharge fixed grooves as the connecting wires, and a winding wire pressing plate is provided above the wire passing plate. The connecting wire passes through the discharge fixed ports and extends along the discharge fixed grooves to the winding roller.

[0034] In the above-mentioned automatic injection molding equipment for LED modules, a full material sensor is provided above the winding roller. The full material sensor is a time-delay sensor for sensing whether the winding roller is full of material.

[0035] The beneficial effect of the present invention according to the above scheme is that the present invention designs automatic injection molding equipment for LED modules, uses a unwinding mechanism, a rewinding mechanism and a transfer mechanism to complete the automated production of the injection molding process of the LED module, and correspondingly arranges a variety of sensors to realize control of various operational or safety hazards, thereby improving production efficiency and reducing labor costs. The overall structure of the device is simple and the cost is low. At the same time, the equipment used in subsequent processes can be arbitrarily spliced, promoting the development of intelligent and automated production.

[0036] 1. The present invention is provided with a residual material transfer mechanism, and the residual material after injection molding of the injection module can be moved out by the residual material transfer mechanism. The residual material transfer mechanism has a simple structure and can accurately complete the recovery of the residual material through secondary induction of the same sensor. In addition, according to actual conditions, the weight of the residual material is relatively light, so a blow nozzle is used instead of a robot to recover the residual material, which further simplifies the mechanical structure of the device and reduces costs.

[0037] 2. The present invention's winding motor is activated and paused via front-end control. The number of injections required to activate the winding motor is set based on the equipment length, site, and injection frequency. The winding motor rotates for a set period of time to complete winding. Furthermore, a winding sensor device improves winding safety, prevents overwinding, reduces the number of synchronous motion mechanisms, improves equipment fault tolerance, reduces the likelihood of errors, and saves a certain amount of power and energy. Furthermore, the winding sensor utilizes a lever principle to accurately detect the winding status of the connecting wire, quickly responding to overtightening. The device also features a simple structure and is easy to install.

[0038] 3. The present invention sets an auxiliary demoulding plate next to the injection module of the vertical injection molding machine. On the one hand, it can add an auxiliary demoulding mechanism to the original demoulding mechanism of the injection molding machine, thereby improving the demoulding success rate and demoulding effect. On the other hand, it can further achieve precise positioning of the connecting line and reduce product defects caused by the deviation of the connecting line.

[0039] 4. The transfer mechanism is equipped with front and rear limit points, an origin, and corresponding displacement sensors, allowing operators to adjust the spacing between LED modules and between products through the control center to meet different product requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0041] Figure 1 It is a structural schematic diagram of the present invention.

[0042] Figure 2 It is a structural diagram of the unwinding mechanism, unwinding guide wheel and residual material transferring mechanism.

[0043] Figure 3 It is a structural diagram of the injection mold and the auxiliary stripping plate.

[0044] Figure 4 It is a structural diagram of the residual material transferring mechanism.

[0045] Figure 5 It is a structural diagram of the transfer mechanism, winding swing device and winding mechanism.

[0046] Figure 6 It is a structural diagram of the transfer mechanism.

[0047] Figure 7 It is a structural diagram of the winding and swinging device.

[0048] Among them, the reference numerals in the figures are:

[0049] 101. Unwinding mechanism; 1011. Unwinding roller;

[0050] 102. Unwinding guide wheel; 1021. Fixed feeding port;

[0051] 103. Residual material transfer mechanism; 1031. Residual material clamp; 1032. Residual material sliding mechanism; 10321. Residual material slide rail; 10322. Residual material slider; 1033. Residual material sensor;

[0052] 104. Vertical injection molding machine; 1041. Injection molding module;

[0053] 105. Auxiliary stripping plate; 1051. Demolding line roller; 1052. Lifting cylinder;

[0054] 106. Transfer mechanism; 1061. Front-back transfer mechanism; 10611. Front limit point; 10612. Origin; 10613. Rear limit point; 1062. Up-down transfer mechanism; 1063. Clamp mechanism;

[0055] 107. Winding guide wheel;

[0056] 108. Winding swing device; 1081. Swinging slide rail; 1082. Swinging slider; 1083. Wire guide plate;

[0057] 109. Winding mechanism; 1091. Winding roller; 1092. Full material sensor;

[0058] 110. Connecting wire; 1101. Plastic-coated casing. DETAILED DESCRIPTION

[0059] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0060] It should be noted that when a component is referred to as being "fixed," "disposed," or "connected" to another component, it may be located directly or indirectly on the other component. Terms such as "upper," "lower," "left," "right," "front," "back," "inner," and "outer" indicate directions or positions based on those shown in the accompanying drawings. These are for ease of description only and should not be construed as limitations on the present technical solution. "Multiple" means two or more, unless otherwise specifically defined. "Several" means one or more, unless otherwise specifically defined.

[0061] An automatic injection molding device for LED modules, such as Figure 1 As shown, it includes an unwinding mechanism 101, a vertical injection molding machine 104, a winding mechanism 109 and a transfer mechanism 106, which constitute the connecting wire 110 of the LED module, that is, the conductive wire. Under the action of the transfer mechanism 106, the connecting wire 110 is stretched from the unwinding roller 1011 of the unwinding mechanism 101 and extends to the injection module 1041 of the vertical injection molding machine 104. The connecting wire 110 is injection-molded on the injection module 1041 to form a plastic-coated shell 1101 of the LED module, and continues to extend until it is received by the winding mechanism 109.

[0062] like Figure 1 、 Figure 2 As shown, the unwinding mechanism 101 is provided with multiple unwinding rollers 1011, and the number of unwinding rollers 1011 is consistent with the number of injection moldings of the injection molding module 1041. A feed fixed port 1021 and an unwinding guide wheel 102 are provided between the unwinding rollers 1011 and the injection molding module 1041. The number of unwinding rollers 1011 is the same as the number of feed fixed ports 1021. The unwinding guide wheel 102 is provided with unwinding guide grooves that are the same as the number of unwinding rollers. The unwinding rollers 1011, the feed fixed port 1021, and the unwinding guide wheel 102 correspond to each other one by one. Multiple rolls of connecting wire 110 are fixed to the unwinding rollers 1011. The connecting wire 110 is pulled out from the unwinding rollers 1011. Driven by the transfer mechanism 106, the connecting wire 110 extends from the unwinding rollers 1011, passes through the feed fixed port 1021, and extends into the injection molding module 1041 along the unwinding guide grooves. Through the restriction of the fixed feed port 1021 and the guidance of the unwinding guide wheel 102, the connecting line 110 can be accurately introduced into the injection module 1041, preventing position deviation during the injection or winding process, which affects the injection and winding effects.

[0063] In order to further realize the positioning of the connecting line 110, the feed fixing port 1021 is provided with a feed sensor that can sense whether the connecting line 110 exists. If the connecting line 110 does not exist on the feed fixing port 1021, that is, the connecting line 110 is not set to pass through the feed fixing port 1021 or the connecting line 110 is offset, the feed sensor senses and sends control information to the injection molding machine and other mechanisms, and the LED module automatic injection molding equipment suspends work until the button is pressed again.

[0064] like Figure 1 As shown, the injection molding machine adopts a vertical injection molding machine 104, which occupies a smaller factory area than a horizontal injection molding machine. The surface of the mold faces upward, and the position of the connecting line 110 is convenient, which is conducive to the setting of various types of automated devices. Due to gravity, the mold is supported horizontally, and its durability is relatively good.

[0065] like Figure 3As shown, the connecting wire 110 is guided by the unwinding guide wheel 102 through the upper portion of the injection module 1041 of the vertical injection molding machine 104. An auxiliary stripper plate 105 is disposed near the injection module 1041. The connecting wire 110 passes above the auxiliary stripper plate 105. The auxiliary stripper plate 105 is provided with the same number of limiting grooves as the connecting wire 110. A stripper roller 1051 is disposed above the auxiliary stripper plate 105. The connecting wire 110 extends into the injection module 1041 along the limiting grooves and is positioned and restrained by the stripper roller 1051. The auxiliary stripper plate 105 is connected to a lifting cylinder 1052. The movement frequency of the auxiliary stripper plate 105 is the same as that of the stripper plate of the injection module 1041. The lifting cylinder 1052 drives the auxiliary stripper plate 105 up and down, thereby driving the connecting wire 110 above the auxiliary stripper plate 105 up and down, allowing the completed connecting wire 110 to be smoothly ejected from the mold.

[0066] During the molding process of the injection molding module 1041, there is often a residual material outside the mold pressing edge. If the residual material is allowed to continue to exist, it will affect the subsequent injection molding operation of the plastic shell 1101 on the connecting line 110. Therefore, it is necessary to set a mechanical mechanism to remove the residual material after each injection molding. Therefore, a residual material transfer mechanism 103 is set near the vertical injection molding machine 104. Figure 4 As shown, the residual material transfer mechanism 103 includes a residual material clamp 1031, a residual material sliding mechanism 1032, and a residual material blowing nozzle. The residual material sliding mechanism 1032 includes a residual material slide rail 10321 and a residual material slider 10322. The residual material slider 10322 slides on the residual material slide rail 10321, and the residual material clamp 1031 is fixed to the residual material slider 10322. The residual material slider 10322 moves to the material removal setting position. The residual material clamp 1031, driven by the residual material slider 10322, extends into the injection mold 1041 to clamp the injection molding residual material. The residual material slider 10322 drives the residual material clamp 1031 on the residual material slide rail 10321 to the material blowing setting position. The residual material blowing nozzle is arranged near the material blowing setting position. The residual material clamp 1031 releases the injection molding residual material, and the residual material blowing nozzle blows the residual material out and drops it at a designated position. Because the waste is light, it can be moved and placed without the need for a robot arm, simply by blowing it with the airflow of a nozzle. The nozzle can be mounted on an adjustable connector, and the angle of the nozzle can be adjusted according to the location of the waste recovery point, so that the waste can fall into the recovery point under the airflow of the nozzle.

[0067] A residual material sensor 1033 is provided on the residual material clamp 1031. When the residual material slider 10322 moves to the blowing setting position, the residual material sensor 1033 detects whether there is injection molding residual material on the residual material clamp 1031. If there is no injection molding residual material, the automatic injection molding equipment of the LED module suspends operation; the residual material sensor 1033 detects whether there is injection molding residual material on the residual material clamp 1031 after the residual material blowing nozzle blows. If there is injection molding residual material, the automatic injection molding equipment of the LED module suspends operation.

[0068] In one embodiment, a strong magnetic slider is provided inside the residual material slide rail 10321, and a strong magnetic block is provided inside the residual material slider 10322. The residual material slider 10322 is sleeved on the residual material slide rail 10321 and is slidingly connected to the residual material slide rail 10321. The two ends of the residual material slide rail 10321 are connected to the residual material cylinder. The residual material cylinder pushes the strong magnetic slider to slide inside the residual material slide rail 10321, and the strong magnetic slider drives the residual material slider 10322 to slide outside the residual material slide rail 10321 via the strong magnetic block.

[0069] Connected to the vertical injection molding machine 104 is the power source of the connecting line 110 - the transfer mechanism 106. Figure 5 、 Figure 6 As shown, the transfer mechanism 106 includes a transfer fixture, an up-down transfer mechanism 1062, and a front-back transfer mechanism 1061. The transfer fixture is fixed to the up-down transfer mechanism 1062, and the up-down transfer mechanism is arranged on the front-back transfer mechanism 1061. The up-down transfer mechanism 1062 drives the transfer fixture to move up and down, and the front-back transfer mechanism 1061 drives the transfer fixture to move back and forth via the up-down transfer mechanism 1062. The transfer fixture clamps the connecting line 110 and pulls the connecting line 110. In the present application, the up-down transfer mechanism 1062 is driven by a cylinder, and the front-back transfer mechanism 1061 is driven by a motor. After the injection molding of the injection mold 1041 is completed, the vertical injection molding machine 104 is demoulded, and the front and rear transfer mechanism 1061 sends the clamp mechanism 1063 to the top of the injection mold 1041. The upper and lower transfer mechanism 1062 moves the clamp mechanism 1063 downward. The clamp mechanism 1063 clamps all the connecting wires 110 laterally. The upper and lower transfer mechanism 1062 moves upward. The front and rear transfer mechanism 1061 moves the clamp mechanism 1063 out of the injection mold 1041. The clamp mechanism 1063 releases the clamping of the connecting wire 110. At this point, the movement of the connecting wire 110 is completed. Since the setting of the connecting wire 110 is continuous, the movement of the connecting wire 110 by the transfer mechanism 106 here drives the unwinding mechanism 101 to unwind, and at the same time completes the feeding step of the new connecting wire 110 into the injection mold 1041.

[0070] The front-to-back transfer mechanism 1061 is provided with a front limit point 10611, a rear limit point 10613, and an origin 10612. Each of these points is equipped with a displacement sensor. After the front-to-back transfer mechanism 1061 moves from the origin 10612 to the front limit point 10611, it pauses for a certain period. During this period, the front-to-back transfer mechanism 1061 delivers the vertical transfer mechanism 1062 and the clamping mechanism 1063 into the injection mold 1041. The vertical transfer mechanism 1062 moves, driving the clamping mechanism 1063 to clamp the connecting line 110 and then reset. The front-to-back transfer mechanism 1061 then drives the vertical transfer mechanism 1062 from the front limit point 10611 to the origin 10612, where it pauses. The control center then performs a count. The rear limit point 10613 is provided as a safety position. In addition, by setting the front limit point 10611, the rear limit point 10613 and the origin 10612 and their corresponding displacement sensors, the transfer length of the front and rear transfer mechanism 1061 can be controlled. In this way, the spacing length of each LED module plastic shell 1101 can be set through the control center, and the product length can also be controlled by the counting value (the product length here is a product composed of multiple continuous LED modules). The former can be set as the interval length, and the latter can be set as the thread end length.

[0071] like Figure 5 As shown, a plurality of winding guide wheels 107 are provided between the winding mechanism 109 and the injection mold 1041. The winding guide wheels 107 are provided with the same number of winding guide grooves as the number of connecting wires 110. The connecting wires 110 extend from the injection mold 1041 via the transfer mechanism 106 and follow the winding guide grooves to the winding roller 1091.

[0072] like Figure 5 、 Figure 7As shown, a winding swing device 108 is provided between the winding mechanism 109 and the injection mold assembly 1041. The winding swing device 108 comprises a swing rail 1081, a swing slider 1082, and a wire-passing plate 1083. The connecting wire 110 extends to the winding swing device 108 after passing through the winding guide wheel 107. The wire-passing plate 1083 is provided with the same number of discharge fixed openings and discharge fixed grooves as the connecting wires 110. A winding wire pressing plate is provided above the wire-passing plate 1083. The connecting wire 110 passes through the discharge fixed openings and extends along the discharge fixed groove to the winding roller 1091. The wire-passing plate 1083 is fixed to the swing slider 1082. Limit blocks are provided at both ends of the swing rail 1081. The swing slider 1082 slides left and right along the swing rail 1081 between the limit blocks. When the winding roller 1091 winds up the connecting line 110, the swinging slider 1082 swings back and forth between the two limit blocks along the swinging slide rail 1081. In this way, the connecting line 110 fixed through the wire plate 1083 swings together with the swinging slider 1082, so that the connecting line 110 is evenly distributed in the winding roller 1091, achieving the maximum storage effect.

[0073] The winding roller 1091 rotates coaxially with the winding motor, which drives the winding roller 1091 to reel in the connecting wire 110. The winding motor is normally stationary. After the transfer mechanism 106 completes the movement from origin 10612 to front limit point 10611 and back to origin 10612, the control center counts the number of injections. This count also represents the number of injections. When the injection molding module 1041 reaches the set number of rewinds, the winding motor stops after running for a certain period of time, and the recorded number of injections is reset to zero. The winding motor will not start again until the number of injections reaches the set number of rewinds again.

[0074] In this case, since the winding motor has a fixed action time, a winding sensor device is provided between the winding mechanism 109 and the injection molding module 1041 to prevent excessive winding from affecting the front-end injection molding operation. The winding sensor device includes a winding sensor and a sensing lever. The connecting wire 110 passes downward around one end of the sensing lever, and the other end of the sensing lever is positioned above the winding sensor. The winding sensor is connected to the winding motor. When the winding motor drives the winding roller 1091 to rewind the connecting wire 110, the connecting wire 110 drives one end of the sensing lever upward. Through the action of the lever, the other end of the sensing lever moves downward. The winding sensor senses the sensing lever, at which point the winding sensor sends a control signal, causing the winding motor to pause.

[0075] A full-fill sensor 1092 is located above the reel 1091 to detect when the reel 1091 is full. When the reel 1091 receives enough connecting wires 110, and the stacked wires 110 reach a certain height, the full-fill sensor 1092 is triggered. Upon sensing this, the full-fill sensor 1092 sends a control signal, pausing the automatic injection molding machine for the LED modules and allowing staff to replace the reel 1091. The full-fill sensor 1092 is a time-delayed sensor, meaning it takes a certain amount of time for the signal to activate. This prevents accidental triggering and ensures that the reel 1091 is full.

[0076] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automatic injection molding device for LED modules, characterized in that: include An unwinding mechanism, the unwinding mechanism comprising a plurality of unwinding rollers, and connecting lines are provided on the unwinding rollers; A vertical injection molding machine, comprising an injection molding module, wherein the injection molding module is configured to injection-mold a plastic-coated housing on the connecting line; A winding mechanism, comprising a plurality of winding rollers; A transfer mechanism, wherein the connecting wire is pulled out from the unwinding roller and is wound and fixed to the winding roller through the injection molding module; A feed fixed port and a feed guide wheel are provided between the unwinding roller and the injection module. The number of the unwinding rollers is the same as the number of the feed fixed ports. The unwinding guide wheel is provided with unwinding guide grooves which are the same as the number of the unwinding rollers. Driven by the transfer mechanism, the connecting wire extends from the unwinding roller, passes through the feed fixed port, and extends into the injection module along the unwinding guide groove. The connecting wire is restricted by the feed fixed port and guided by the unwinding guide wheel so that the connecting wire can be accurately introduced into the injection module. The feed fixed port is provided with a feed sensor for sensing whether the connecting wire exists. If the connecting wire does not exist on the feed fixed port, the automatic injection molding equipment for LED modules will suspend operation. An auxiliary stripper plate is arranged near the injection module, and the auxiliary stripper plate is connected to a lifting cylinder, and the lifting cylinder drives the auxiliary stripper plate to move up and down. The movement frequency of the auxiliary stripper plate is the same as the movement frequency of the stripper plate of the injection module. The auxiliary stripper plate is provided with limiting grooves with the same number as the connecting lines, and the connecting lines extend into the injection module along the limiting grooves. A stripper pressing roller is arranged above the auxiliary stripper plate.

2. The automatic injection molding equipment for LED modules according to claim 1, characterized in that: It also includes a residual material transfer mechanism, the residual material transfer mechanism includes a residual material clamp, a residual material sliding mechanism and a residual material blowing nozzle, the residual material sliding mechanism includes a residual material slide rail and a residual material slider, the residual material slider slides on the residual material slide rail, and the residual material clamp is fixed on the residual material slider; The residual material slider moves to the material taking setting position, and the residual material clamp extends into the injection module to clamp the injection molding residual material under the drive of the residual material slider. The residual material slider drives the residual material clamp to move to the blowing setting position on the residual material slide rail. The residual material blowing nozzle is arranged near the blowing setting position. The residual material clamp releases the injection molding residual material, and the residual material blowing nozzle blows out the injection molding residual material and drops it at a specified position.

3. The automatic injection molding equipment for LED modules according to claim 2, characterized in that: The residual material clamp is provided with a residual material sensor. The residual material sensor detects whether there is the injection molding residual material on the residual material clamp when the residual material slider moves to the blowing material setting position. If there is no injection molding residual material, the LED module automatic injection molding equipment suspends operation; The residual material sensor detects whether the residual material exists in the residual material clamp after the residual material blowing nozzle blows. If the residual material exists, the automatic injection molding equipment for LED modules suspends operation.

4. The automatic injection molding equipment for LED modules according to claim 1, characterized in that: The transferring mechanism includes a transferring fixture, an up and down transferring mechanism and a front and back transferring mechanism. The transferring fixture is fixed on the up and down transferring mechanism. The up and down transferring mechanism is arranged on the front and back transferring mechanism. The up and down transferring mechanism drives the transferring fixture to move up and down. The front and back transferring mechanism drives the transferring fixture to move back and forth via the up and down transferring mechanism. The transferring fixture clamps the connecting line and pulls the connecting line.

5. The automatic injection molding equipment for LED modules according to claim 4, characterized in that: The front and rear transfer mechanism is provided with a front limit point, a rear limit point and an origin, and the front limit point, the rear limit point and the origin are all provided with displacement sensors.

6. The automatic injection molding equipment for LED modules according to claim 1, characterized in that: The winding roller rotates coaxially with the winding motor, and the winding motor drives the winding roller to rewind the connecting line.

7. The automatic injection molding equipment for LED modules according to claim 6, characterized in that: When the injection number of the injection molding module reaches the set winding number, the winding motor stops after running for a certain period of time, and the recorded injection number is reset to zero.

8. The automatic injection molding equipment for LED modules according to claim 6, characterized in that: A winding sensing device is provided between the winding mechanism and the injection molding module, the winding sensing device comprising a winding sensor and a sensing lever, the connecting line is passed downwardly around one end of the sensing lever, the other end of the sensing lever is provided above the winding sensor, and the winding sensor is connected to the winding motor; The winding motor drives the winding roller to wind up the connecting line, and the connecting line drives one end of the sensing lever to move upward, and the other end of the sensing lever to move downward. The winding sensor senses the sensing lever, and the winding motor pauses.

9. The automatic injection molding equipment for LED modules according to claim 1, characterized in that: A winding swing device is provided between the winding mechanism and the injection mold group. The winding swing device includes a swing rail, a swing slider and a wire passing plate. The wire passing plate is fixed on the swing slider. Limit blocks are provided at both ends of the swing rail. The swing slider slides left and right along the swing rail between the limit blocks.

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