Static curing equipment

Abstract

The present invention discloses a static curing device, which includes a conveying device, a loading device, a feeding device, a static device, a feeding device and a disassembling device. The conveying device is used to convey the product fixed in the positioning fixture. The loading device is used to assemble the gasket for preventing glue overflow on the product. The conveying device cooperates with the feeding device to separate the upper carrier of the positioning fixture from the lower carrier, and after the upper carrier is rotated by a certain angle, it is transferred to the static device by the feeding device. The static device can be used to place multiple upper carriers, and the placed upper carriers can also be transferred to the direction of the feeding device according to the order of placement. The conveying device also cooperates with the feeding device to reversely rotate the upper carrier taken out by the static device by the angle and then install it back on the lower carrier. The disassembling device is used to remove the gasket from the product. The device has a simple structure, high efficiency and effectively prevents glue overflow. While improving production efficiency, it effectively guarantees product quality.

Description

Technical Field

[0001] The invention relates to machining equipment, in particular to static curing equipment. Background Art

[0002] During the production and processing of products, products are often bonded by dispensing glue. After dispensing glue, in order to ensure the firmness of the bond, the product needs to be left to stand for a certain period of time to wait for the glue to solidify before being transported to the next workstation. At present, the products that have been glued are usually placed on shelves manually for static use. When the next workstation needs to take the product, the product is taken out manually and placed on the next workstation, which results in low operating efficiency and high labor costs. In addition, it is impossible to effectively prevent the problem of product contamination caused by excess glue overflowing during the curing process, thereby affecting product quality.

[0003] Therefore, there is an urgent need for a static curing device that can realize automated operation, has a simple structure, high efficiency and effectively prevents glue overflow to overcome the above problems, so as to improve production efficiency and product quality at the same time. Summary of the invention

[0004] The object of the present invention is to provide a static curing device which can realize automated operation, has a simple structure, high efficiency and effectively prevents glue overflow.

[0005] In order to achieve the above-mentioned purpose, the present invention discloses a static curing device, which includes a conveying device and a loading device, a feeding device, a static device, a unloading device and a disassembly device arranged in sequence along the conveying direction of the conveying device. The conveying device is used to convey the product fixed in the positioning fixture, and the loading device is used to assemble the gasket for anti-overflow glue on the product. The conveying device cooperates with the feeding device to separate the upper carrier of the positioning fixture from the lower fixture, and after the upper carrier is rotated by a certain angle, it is transferred to the static device by the feeding device. The static device can be used for placing multiple upper carriers, and can also transfer the placed upper carriers toward the direction of the unloading device in the order of placement. The conveying device also cooperates with the unloading device to rotate the upper carrier taken out by the static device in the opposite direction by the angle and then install it back on the lower fixture. The disassembly device is used to remove the gasket from the product.

[0006] Preferably, the stationary device comprises a stationary platform erected above the conveying device, the stationary platform is provided with a plurality of placement positions arranged in a straight line, and the conveying direction of the stationary platform is the same as the conveying direction of the conveying device.

[0007] Preferably, the stationary platform includes a plurality of rows of conveyor belts arranged along the conveying direction of the conveying device and a driving motor for driving the plurality of rows of conveyor belts to transmit synchronously.

[0008] Preferably, the conveyor belt comprises two belt bodies arranged in parallel at a certain interval, a conveying path for the upper carrier to be conveyed is formed between the two belt bodies, and the interval between the two belt bodies corresponds to the length dimension of the upper carrier.

[0009] Preferably, the stationary device comprises a plurality of stationary platforms arranged in layers above the conveying device, and the loading device operates in the order of feeding a full layer and then transferring an adjacent layer.

[0010] Preferably, the conveying device includes a conveying guide rail and a positioning mechanism, and the loading device and the unloading device are each provided with a positioning mechanism, the positioning mechanism includes a push plate, a rotating member and a limit plate, the push plate is arranged at the lower side of the conveying guide rail of the conveying device and can move linearly up and down relative to the conveying guide rail to push the positioning fixture, the rotating member is protruding from the push plate and can move linearly up and down with the push plate, the rotating member can also rotate relative to the push plate, and the limit plate is arranged at the edge of the conveying device in a direction to block the lower tool from moving upward.

[0011] Preferably, the static curing equipment of the present invention also includes a feeding device, which is arranged beside the conveying device and is used to drive two material trays installed thereon to alternately move back and forth between the loading device and the disassembly device, thereby realizing cyclic feeding of the gasket.

[0012] Preferably, the material tray has a plurality of positions corresponding to the shape of the gasket, each position is provided with a conical positioning column, the gasket is sleeved on the positioning column, and has a certain distance between it and the end surface of the material tray.

[0013] Preferably, the static curing equipment of the present invention also includes a mixing device arranged at the front end of the loading device, and the mixing device includes a suction cup and a driving mechanism connected to the suction cup, and the driving mechanism can drive the suction cup to reciprocate linearly to pick up the download tool that is conveyed or stacked beside the driving mechanism and deliver it to the conveying device.

[0014] Preferably, the static curing equipment of the present invention also includes a detection and identification device, which is arranged at the head end of the conveying device or between the mixing device and the loading device, and is used to sense and identify the positioning fixture passing through, and at the same time send a signal to the control system after sensing the upper carrier and the lower carrier, so as to facilitate the operation of the loading device and the feeding device.

[0015] Compared with the prior art, the static curing equipment of the present invention automatically realizes the taking and placing of the product to be cured in the static device through the loading device and the unloading device arranged in sequence along the conveying direction of the conveying device. The static device can accommodate the storage of multiple products to be cured, and in the taking and placing process, the conveying device cooperates with the loading device to separate the upper carrier and the lower carrier of the positioning fixture used to fix the product, and after the upper carrier carrying the product is rotated a certain angle, it is transferred to the static device by the loading device. Since only the upper carrier that occupies a smaller space and is more convenient to transfer the tightly arranged upper carrier to the static device after rotation, And further increase the storage capacity of products in the static device; the static device can not only realize the placement of multiple upper carriers, but also transfer the upper carriers to the direction of the unloading device in the order of placement, so as to realize the first-in-first-out of the cured products, and then the conveying device cooperates with the unloading device to take out the upper carrier carrying the cured products from the static device and put it back on the lower carrier after rotating it in the opposite direction for a certain angle; in addition, the gasket is assembled in the product before static by the loading device, effectively preventing the contamination of the product by overflowing glue, and after curing, the gasket is removed by the disassembly device, so that the gasket can be recycled. The static curing equipment of the present invention can realize automated flow operation, with simple structure, reasonable layout, high efficiency and effective prevention of contamination of the product by overflowing glue, while improving production efficiency, effectively ensuring product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the positioning fixture of the present invention.

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the static curing equipment of the present invention.

[0018] Figure 3 It is a schematic diagram of the planar structure of the static curing equipment of the present invention.

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the loading device of the present invention.

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the stationary device of the present invention.

[0021] Figure 6 It is a side view of the stationary device of the present invention.

[0022] Figure 7 It is a side view of the positioning mechanism of the present invention.

[0023] Figure 8 It is a schematic diagram of the three-dimensional structure of the static platform of the present invention. DETAILED DESCRIPTION

[0024] In order to explain the technical content, structural features, achieved objectives and effects of the present invention in detail, the following is a detailed description in conjunction with the implementation methods and the accompanying drawings.

[0025] See also Figures 1 to 3 The present invention relates to a product 200 assembled by glue, especially an electronic product. In the present application, the product 200 includes but is not limited to a stylus pen used in electronic products such as mobile phones, tablet computers and electronic dictionaries. The components of the stylus pen are assembled and fixed by glue, so it is necessary to wait for the glue to solidify to achieve a firm assembly. The present invention discloses a static curing device 100, which is suitable for static curing of the glue in the above-mentioned product 200 bonded by glue, and includes a conveying device 10 arranged along the longitudinal direction of a working platform 101 and a loading device 20, a feeding device 30, a static device 40, a unloading device 50 and a disassembly device 60 arranged in sequence along the conveying direction of the conveying device 10. The conveying device 10 is used to convey the product 200 fixed in the positioning fixture 300, wherein the positioning fixture 300 includes a detachably connected upper carrier 301 and a lower carrier 302, the upper carrier 301 is connected to the relative center of the lower carrier 302, and the bottom ends of the two have a first connecting hole (not shown in the figure) that is connected, and a second connecting hole 3011 is respectively provided on the left and right opposite sides of the upper carrier 301, and the product 200 is specifically fixed in the upper carrier 301. The loading device 20 is used to assemble the gasket 400 for anti-overflow glue on the product 200. The conveying device 10 can cooperate with the loading device 30 to separate the upper carrier 301 of the positioning fixture 300 from the lower carrier 302, and after the upper carrier 302 loaded with the product 200 is rotated to a certain angle, it is transferred to the static device 40 by the loading device 30. The stationary device 40 can be used to place multiple upper carriers 301. The rotated upper carriers 301 are closely arranged in the stationary device 40 at an angle that is convenient for arrangement. The stationary device 40 can also transfer the placed upper carriers 301 to the direction of the unloading device 50 in the order of placement to achieve first-in-first-out. The conveying device 10 can also cooperate with the unloading device 50. After the upper carrier 301 taken out from the stationary device 40 is reversely rotated at a certain angle, it is installed back on the lower carrier 302. Then, the positioning fixture 300 carries the cured product 200 and continues to be conveyed to the disassembly device 60. The disassembly device 60 is used to remove the gasket 400 from the product 200 so that the gasket 400 can be recycled and reused, and the cured product 200 continues to flow out of the device under the conveyance of the conveying device 10.

[0026] Of course, the static curing equipment 100 of the present invention also includes a casing (not shown in the figure) and a control system covered on the outside of the platform 101. The control system is electrically connected to the conveying device 10, the loading device 20, the loading device 30, the static device 40, the unloading device 50 and the disassembly device 60, respectively, and the coordinated actions between the devices are controlled by the control system. Among them, the control system is an existing control system, and its structure and control principle are well known in the art, so it will not be described in detail here.

[0027] See below Figures 1 to 8 , the structure and working principle of each device of the static curing equipment 100 of the present invention are described:

[0028] See first Figure 4 The loading device 20 includes a first clamping jaw 21, an industrial camera 22 and a first driving mechanism 23. The industrial camera 22 is used to identify the position coordinates of the product 200 and feed back the identification information to the control system. Under the instruction of the control system, the first driving mechanism 23 can drive the first clamping jaw 21 connected thereto to reciprocate linearly, and assemble the gasket 400 obtained from the gasket feeding place on the corresponding product 200 according to the corresponding assembly position. In this embodiment, the first clamping jaw 21 can move linearly along the X-axis, Y-axis and Z-axis directions under the drive of the first driving mechanism 23, so as to accurately install the gasket 200 on the product 200. Of course, in other embodiments, the first clamping jaw 21 can also move linearly only along the Y-axis and Z-axis directions, as long as the automatic placement of the gasket 200 can be realized. The industrial camera 22 can be fixed above the conveying device 10, or it can be connected to the output end of the first driving mechanism 23, and move synchronously with the first clamping jaw 21. The disassembling device 60 has a substantially similar structure to the loading device 20 , except that the specific actions to be performed are different, which will not be described in detail herein.

[0029] The gasket 400 can be fed by a vibrating material tray, or manually stacked on a material tray carrying the gasket 400. In the preferred embodiment of the present application, in order to further improve efficiency, the gasket 400 can be circulated and fed by a feeding device 70. Figure 2 and Figure 3As shown, the feeding device 70 is arranged beside the conveying device 10, and can drive the two material trays 500 installed thereon to alternately go back and forth between the loading device 20 and the disassembling device 60, so that the disassembling device 60 can put the gaskets 400 removed from the product 200 on the empty material tray 500 located beside it, until it is full of gaskets 400, and the material tray 500 is conveyed to the loading device 20 for feeding, and at the same time, the material tray 500 from which the gaskets 400 at the loading device 20 have been taken out is returned to the disassembling device 60, thereby realizing the cyclic feeding of the gaskets 400. Specifically, the two material trays 500 can reciprocate linearly under the drive of their respective corresponding conveyor belts, and the two conveyor belts can be arranged in parallel or in high and low arrangements.

[0030] Among them, in order to facilitate material removal, the material tray 500 has a plurality of positions corresponding to the shape of the gasket 400, and each position is provided with a conical positioning column. When the gasket 400 is sleeved on the positioning column, there is a certain distance between the gasket 400 and the end face of the material tray 500, thereby facilitating the picking and placing operation of the first clamp 21.

[0031] See also Figures 5 to 8 The conveying device 10 includes a conveying guide rail 11 and a positioning mechanism 12. A positioning mechanism 12 is provided at each of the loading device 30 and the unloading device 50. The positioning mechanism 12 includes a push plate 121, a rotating member 122 and a limit plate 123. The push plate 121 is provided at the lower side of the conveying guide rail 11 and is located between the two conveying belts 111 of the conveying guide rail 11. The push plate 121 can move linearly up and down relative to the conveying guide rail 11 to push and position the carrier 300 to make it separate from the conveying guide rail 11. The limit plate 123 is provided at the side of the conveying guide rail 11 in a direction that blocks the lower carrier 302 from moving upward. The edge of the lower tool 302 can be separated from the upper carrier 301, and the rotating member 122 is protruded on the pushing plate 121 and can move up and down with the pushing plate 121, and can be plugged into the first plug hole at the bottom of the positioning fixture 300. The rotating member 122 can also rotate relative to the pushing plate 121, thereby driving the upper carrier 301 that has separated from the lower tool 302 to rotate a certain angle, so that the second plug hole 3011 at the side end of the upper carrier 301 is in a position convenient for the loading device 30 to pick up and deliver, and the upper carrier 301 at this angle is more convenient to be arranged closely in the static device 40.

[0032] Specifically, when the pushing plate 121 is driven by the pushing mechanism 124 connected thereto to move upward in a straight line to push the positioning fixture 300, the positioning fixture 300 can be pushed as a whole to be separated from the conveying guide rail 11. During this process, the rotating member 122 also moves upward to be inserted into the first plug hole at the bottom of the lower carrier 302 from the first plug hole of the upper carrier 301. The lower carrier 302 cannot move further upward because its edge is blocked by the limiting plate 123, thereby separating the upper carrier 301 that continues to move upward from the lower carrier 302 until the rotating member 122 is completely inserted into the lower carrier 302. After being received in place, the rotating drive mechanism 125 connected to the output end of the pushing mechanism 124 drives the rotating member 122 connected thereto to rotate, thereby driving the upper carrier 301 that has separated from the lower carrier 302 to rotate 90° in a clockwise direction, so that the second plug-in holes 3011 on both side ends of the rotated upper carrier 301 are located at positions corresponding to the second clamping jaws 31 of the loading device 30. The second clamping jaw 31 then moves in a straight line under the drive of the driving mechanism connected thereto, and can be conveniently inserted into the second plug-in hole 3011 to realize the picking and placing operations of the upper carrier 301.

[0033] Among them, the structure of the unloading device 50 is basically the same as that of the loading device 30, and only the actions performed are different. The third clamping claw 51 of the unloading device 50 is to take and place the upper carrier 301 from the static device 40 onto the lower carrier 302. At this time, the rotating drive mechanism 125 matched therewith drives the rotating member 122 to rotate 90° in the counterclockwise direction, thereby rotating the positioning fixture 300 to a direction convenient for transmission. Preferably, the positioning mechanism 12 also includes a blocking member 126 and a blocking mechanism 127 that drives the blocking member 126 to move linearly up and down, thereby preventing the positioning fixture 300 from continuing to be transmitted along the transmission direction of the transmission guide rail 11, so as to facilitate the corresponding actions of the loading device 30 and the unloading device 50.

[0034] Continue reading Figures 5 to 8 The stationary device 40 includes a stationary platform 41 mounted above the conveying device 10. The stationary platform 41 is provided with a plurality of placement positions arranged in a straight line, and the conveying direction of the stationary platform 41 can be the same as the conveying direction of the conveying device 10, which can effectively utilize the space and facilitate the implementation of the first-in-first-out setting.

[0035] Specifically, the stationary platform 41 includes a plurality of conveyor belts 411 arranged along the conveying direction of the conveying device 10 and a driving motor 412 for driving the plurality of conveyor belts 411 to transmit synchronously. The conveyor belt 411 is driven by a driving motor 412, which effectively simplifies the structure and reduces the cost accordingly. The conveyor belt 411 includes two belt bodies 4111 arranged in parallel at a certain interval, and a transmission path is formed between the two belt bodies 4111. The interval between the two belt bodies 4111 corresponds to the length of the upper carrier 301. More specifically, the two belt bodies 4111 are wound around a driving wheel 4112 and a driven wheel 4113 arranged in a one-to-one correspondence, and a plurality of rollers 4114 are evenly distributed between each driving wheel 4112 and the driven wheel 4113. The driving motor 412 is connected to the driving wheel 4112 of the plurality of conveyor belts 411, so as to drive the plurality of conveyor belts 411 to rotate synchronously.

[0036] During specific operations, after the sensor located at the feeding end of the static platform 41 senses that the first row positions of the multi-column conveyor belts 411 are all placed with upper carriers 301, it sends a signal to the control system. Under the instruction of the control system, the driving motor 412 drives the multi-column conveyor belts 411 to rotate synchronously, and moves the multiple upper carriers 301 in the first row to the second row. Every time a row is filled, the driving motor 412 is activated once until the conveyor belt 411 is full of upper carriers 301. The row of upper carriers 301 first fed into the static platform 41 is located at the position closest to the unloading device 50. At this time, the sensor located at the discharging end sends a signal to the control system. Under the instruction of the control system, the driving motor 412 does not operate temporarily, waiting for the glue in the product to solidify until the preset curing time is reached. The unloading device 50 starts to operate and removes the row of upper carriers 301 at the discharging end one by one.

[0037] Furthermore, in order to improve the curing efficiency, the stationary device 40 includes a plurality of stationary platforms 41 arranged in layers above the conveying device 10, and the loading device 30 transfers the upper carrier 301 in the order of feeding a full layer and then transferring the adjacent layer. When the curing time required for the product 200 is short, while the loading device 30 is still feeding other layers, the product 200 of the first placed layer has been cured and discharged, thereby realizing uninterrupted assembly line operation and further improving efficiency.

[0038] See also Figure 2 and Figure 3When the product 200 requires a long curing time, in order to balance the problem of the mismatch in the number of upper carriers 301 stored in the static device 40 and the separated lower carriers 302 transported on the conveying device 10, the static curing equipment 100 of the present invention also includes a mixing device 80. The mixing device 80 can be arranged at the front end of the loading device 20, and specifically can include a suction cup 81 and a driving mechanism 82 connected to the suction cup 81. The driving mechanism 82 can drive the suction cup 81 to move relative to the conveying device 10, and take the lower carrier 302 transported or stacked beside the driving mechanism 82 to the conveying device 10, so as to facilitate the assembly with the upper carrier 301 after it has been stationary for a period of time.

[0039] See also Figure 2 and Figure 3 The static curing equipment 100 of the present invention also includes a detection and identification device 90, which is arranged at the head end of the conveying device 10 or between the mixing device 80 and the loading device 20, and is used to sense and identify the positioning fixture 300 flowing through. At the same time, after sensing the upper carrier 301 and the lower carrier 302, a signal is sent to the control system so that the loading device 20 and the feeding device 30 complete the corresponding actions. Only the single lower carrier 302 that is identified is directly released to be transported on the conveying device 10.

[0040] Compared with the prior art, the static curing equipment 100 of the present invention automatically realizes the placement and taking of the product 200 to be cured in the static device 40 by means of the loading device 30 and the unloading device 50 arranged in sequence along the conveying direction of the conveying device 10. The static device 40 can accommodate the storage of multiple products 200 to be cured, and in the placing and taking process, the conveying device 10 cooperates with the loading device 30 to separate the upper carrier 301 of the positioning fixture 300 for fixing the product from the lower carrier 302, and after the upper carrier 301 carrying the product 200 is rotated a certain angle, it is transferred to the static device 40 by the loading device 30. Since only the upper carrier 301 which occupies a smaller space and is more convenient to be closely arranged after rotation is transferred to the static device 40, further The storage capacity of the product 200 in the static device 40 is increased; in addition, the static device 40 can not only realize the placement of multiple upper carriers 301, but also transfer the upper carriers 301 to the direction of the unloading device 50 in the order of placement, so as to realize the first-in-first-out of the cured product, and then the conveying device 10 cooperates with the unloading device 50 to take out the upper carrier 301 carrying the cured product 200 from the static device 40 and reversely rotate it to a certain angle and then put it back on the lower carrier 302 to realize flow-pull transmission; in addition, the gasket 400 is also assembled in the product 200 before static by the loading device 20, effectively preventing the contamination of the product 200 by overflowing glue, and after curing, the gasket is removed by the disassembly device 60, so that the gasket 400 can be recycled. The static curing equipment 100 of the present invention can realize automated assembly line operation, has a simple structure, high efficiency, and effectively prevents the contamination of the product by overflowing glue, while improving production efficiency, effectively ensuring product quality.

[0041] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A static curing device, characterized in that: The static curing equipment includes a conveying device and a loading device, a feeding device, a static device, a discharge device and a disassembly device arranged in sequence along the conveying direction of the conveying device. The conveying device is used to convey the product fixed in the positioning fixture. The loading device is used to assemble the gasket for anti-overflow glue on the product. The conveying device cooperates with the feeding device to separate the upper carrier of the positioning fixture from the lower carrier, and after rotating the upper carrier by a certain angle, it is transferred to the static device by the feeding device. The static device can be used to place multiple upper carriers, and can also transfer the placed upper carriers toward the direction of the discharge device in the order of placement. The conveying device also cooperates with the discharge device to rotate the upper carrier taken out by the static device in the opposite direction by the angle and then install it back on the lower carrier. The disassembly device is used to remove the gasket from the product; the stationary device includes a stationary platform mounted above the conveying device, and the stationary platform is provided with a plurality of placement positions arranged in a straight line, and the conveying direction of the stationary platform is the same as the conveying direction of the conveying device; the conveying device includes a conveying guide rail and a positioning mechanism, and the loading device and the unloading device are each provided with a positioning mechanism, and the positioning mechanism includes a push plate, a rotating member and a limit plate, the push plate is arranged at the lower side of the conveying guide rail of the conveying device and can move linearly up and down relative to the conveying guide rail to push the positioning fixture, the rotating member is convexly arranged on the push plate and can move linearly up and down with the push plate, the rotating member can also rotate relative to the push plate, and the limit plate is arranged at the edge of the conveying device in a direction to block the lower tool from moving upward.

2. The static curing device according to claim 1, characterized in that: The stationary platform includes a plurality of rows of conveyor belts arranged along the conveying direction of the conveying device and a driving motor for driving the plurality of rows of conveyor belts to transmit synchronously.

3. The static curing device according to claim 2, characterized in that: The conveyor belt comprises two belt bodies arranged in parallel at a certain interval, a conveying path for the upper carrier to be conveyed is formed between the two belt bodies, and the interval between the two belt bodies corresponds to the length dimension of the upper carrier.

4. The static curing device according to claim 2, characterized in that: The stationary device includes a plurality of stationary platforms arranged in layers above the conveying device, and the loading device operates in the order of feeding a full layer and then transferring an adjacent layer.

5. The static curing device according to claim 1, characterized in that: It also includes a feeding device, which is arranged beside the conveying device and is used to drive two material trays installed thereon to alternately move back and forth between the loading device and the disassembling device, thereby realizing cyclic feeding of the gasket.

6. The static curing device according to claim 5, characterized in that: The material tray is provided with a plurality of positions corresponding to the shape of the gasket, each position is provided with a conical positioning column, the gasket is sleeved on the positioning column, and has a certain distance between it and the end surface of the material tray.

7. The static curing device according to claim 1, characterized in that: The static curing equipment also includes a mixing device arranged at the front end of the loading device, and the mixing device includes a suction cup and a driving mechanism connected to the suction cup. The driving mechanism can drive the suction cup to reciprocate in a straight line to pick up the download tool that is conveyed or stacked beside the driving mechanism and deliver it to the conveying device.

8. The static curing device according to claim 7, characterized in that: The static curing equipment also includes a detection and identification device, which is arranged at the head end of the conveying device or between the mixing device and the loading device, and is used to sense and identify the positioning fixture passing through, and at the same time, after sensing the upper carrier and the lower carrier, send a signal to the control system to facilitate the operation of the loading device and the feeding device.

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