Double-station feeding device for backboard trimming

Abstract

The double-station feeding device comprises a workbench, two material loading mechanisms and a driving mechanism, the workbench is provided with a first end close to an edge trimmer and a second end far away from the edge trimmer, the first end of the workbench is used for forming an edge trimming station, and the second end of the workbench is used for forming a material loading mechanism. The second end of the workbench is used for forming a loading and unloading station. The two material loading mechanisms are arranged on the workbench in a sliding mode and each provided with a cavity used for containing a backrest plate; the driving mechanism is connected with the two material carrying mechanisms and used for driving the two material carrying mechanisms to move between the first end and the second end of the workbench in a reciprocating mode. The edge trimmer has the advantages that in the process of taking and placing the backboard on the loading mechanism reaching the loading and unloading station, the cutting head of the edge trimmer can trim the backboard on the loading mechanism reaching the edge trimming station, the time for taking and placing the backboard is saved, and the efficiency of edge trimming work is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aircraft seat processing, in particular to a double-station feeding device for backrest plate trimming. Background Art

[0002] The aircraft seat backrest is one of the important components of the aircraft seat, which is used to provide support for the passenger's back.

[0003] After the aircraft backrest board is made by the hot pressing process, a trimming device is needed to be used to trim the edges of the backrest board. When the existing trimming device (such as a multi-station rubber plug punching and trimming device disclosed in application No. 201921947169.2) is used to trim the edges of the backrest board, the backrest board needs to be placed in a special positioning cavity first. After the trimming is completed, the backrest board is taken out of the positioning cavity. During the process of placing and taking out the backrest board, the cutter head of the trimming machine cannot trim the backrest board, which wastes a lot of time and leads to low trimming efficiency. Utility Model Content

[0004] The purpose of the utility model is to overcome the above-mentioned technical deficiencies and propose a double-station feeding device for backrest board trimming, so as to solve the technical problem in the prior art that during the process of placing and taking the backrest board, the cutter head of the trimming machine cannot trim the backrest board, which wastes a lot of time and leads to low trimming efficiency.

[0005] In order to achieve the above technical purpose, the technical solution of the utility model provides a double-station feeding device for backrest board trimming, comprising:

[0006] A workbench having a first end close to the trimming machine and a second end away from the trimming machine, wherein the first end of the workbench is used to form a trimming station, and the second end of the workbench is used to form a loading and unloading station;

[0007] Two loading mechanisms are both slidably disposed on the workbench and each has a cavity for placing the backrest plate;

[0008] The driving mechanism is connected to the two material-carrying mechanisms and is used to drive the two material-carrying mechanisms to move back and forth between the first end and the second end of the workbench, and to make the two material-carrying mechanisms alternately reach the trimming station and the loading and unloading station.

[0009] Furthermore, the trimming station is arranged directly below the cutter head of the trimming machine.

[0010] Furthermore, the workbench is provided with two first guide grooves extending from the first end of the workbench to the second end of the workbench, and the two first guide grooves are arranged oppositely on both sides of the trimming station and the loading and unloading station.

[0011] Furthermore, the two loading mechanisms each include a guide seat and a loading seat, the two guide seats are respectively slidably connected to the corresponding first guide grooves, and both can move along the length direction of the first guide groove, the two loading seats are respectively slidably connected to the corresponding guide seats, and both can move along the length direction perpendicular to the first guide groove, the cavity is opened on the upper surface of the loading seat, the driving mechanism is connected to the two guide seats, and is used to drive the two guide seats to move in the corresponding first guide grooves in opposite directions, when the two guide seats approach each other, the two loading seats move away from each other, when the two guide seats move away from each other, the two loading seats approach each other and reach the trimming station and the loading and unloading station respectively.

[0012] Furthermore, there is a distance between the mutually adjacent sides of the two guide seats.

[0013] Furthermore, the workbench is provided with two second guide grooves, both extending from the first end of the workbench to the second end of the workbench, the two second guide grooves are relatively arranged on the outer sides of the corresponding first guide grooves, the middle section of the second guide groove is a broken line structure, the distance from the middle section of the second guide groove to the corresponding first guide groove is greater than the distance from the end section of the second guide groove to the corresponding first guide groove, and the two loading mechanisms also include guide shafts, the upper ends of the two guide shafts are respectively rotatably connected to the corresponding loading seats, and the lower ends of the two guide shafts are respectively slidably connected to the corresponding second guide grooves.

[0014] Furthermore, the two loading mechanisms each include a guide block, and the two guide blocks are respectively slidably disposed in the corresponding first guide grooves and are respectively fixed to the bottom of the corresponding guide seat.

[0015] Furthermore, each of the two guide seats is provided with a slide groove extending in a length direction perpendicular to the first guide groove, and each of the two loading mechanisms also includes a slider, which is respectively slidably disposed in the corresponding slide groove and is respectively fixed to the bottom of the corresponding loading seat.

[0016] Furthermore, the workbench is provided with a through slot extending from the first end of the workbench to the second end of the workbench, and the through slot is located between the two first guide slots. The driving mechanism includes two gears, a chain belt and a rotating driving member. The two gears are rotatably arranged on the lower surface of the workbench, and the two gears correspond to the trimming station and the loading and unloading station one by one respectively. The chain belt is a closed belt and is wound around the two gears. The ends of the two guide seats pass through the through slot and are respectively fixed to one side of the corresponding chain belt. The output end of the rotating driving member is coaxially fixed to one of the gears for driving the corresponding gear to rotate.

[0017] Furthermore, the double-station feeding device for trimming the backrest plate also includes an ejection mechanism, and the ejection mechanism is used to eject the backrest plate in the cavity.

[0018] Compared with the prior art, the beneficial effects of the utility model include: when in use, by manipulating the driving mechanism, the driving mechanism can drive the two loading mechanisms to reciprocate between the first end and the second end of the workbench, so that the two loading mechanisms can alternately reach the trimming station and the loading and unloading station, and the trimming machine can trim the backrest board on the loading mechanism that reaches the trimming station, and when the trimming machine trims the backrest board on the loading mechanism that reaches the trimming station, the backrest board on the loading mechanism that reaches the loading and unloading station can be manually taken out, and the next backrest board to be trimmed can be placed into the mold cavity. In the utility model, in the process of placing and taking the backrest board on the loading mechanism that reaches the loading and unloading station, the cutter head of the trimming machine can trim the backrest board on the loading mechanism that reaches the trimming station, which saves the time for placing and taking the backrest board and improves the efficiency of the trimming work. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of an existing backrest board;

[0020] Figure 2 It is a three-dimensional structural schematic diagram of a double-station feeding device for backrest board trimming provided by the utility model;

[0021] Figure 3 yes Figure 1 A schematic diagram of the three-dimensional structure of a double-station feeding device for trimming a backrest plate when two material carriers are in a back-to-back state;

[0022] Figure 4 yes Figure 2 A structural schematic diagram of the connection relationship between a loading seat and an ejection mechanism of a double-station feeding device for trimming a backrest plate;

[0023] Figure 5 yes Figure 2A schematic diagram of the three-dimensional structure of a double-station feeding device for trimming a backrest plate when the backrest plate is placed in the cavity of a loading seat;

[0024] In the figure: 1-backrest plate, 100-workbench, 110-trimming station, 120-loading and unloading station, 130-first guide groove, 140-second guide groove, 150-through groove, 200-loading mechanism, 210-cavity, 220-guide seat, 221-slideway, 230-loading seat, 231-accommodating cavity, 232-ejection channel, 240-guide shaft, 250-guide block, 260-slider, 300-driving mechanism, 310-gear, 320-chain belt, 330-rotating driving member, 400-ejecting mechanism, 410-ejecting block, 411-ejecting groove, 420-ejecting shaft, 430-elastic member, 440-pressing shaft. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0026] The utility model provides a double-station feeding device for trimming backrest boards, the structure of which is as follows: Figure 2 - Figure 4 As shown, it includes a workbench 100, two loading mechanisms 200 and a driving mechanism 300. The workbench 100 has a first end close to the trimming machine and a second end away from the trimming machine. The first end of the workbench 100 is used to form a trimming station 110, and the second end of the workbench 100 is used to form a loading and unloading station 120; the two loading mechanisms 200 are slidably arranged on the workbench 100, and each has a cavity 210 for placing the backrest board 1; the driving mechanism 300 is connected to the two loading mechanisms 200, and is used to drive the two loading mechanisms 200 to reciprocate between the first end and the second end of the workbench 100, and make the two loading mechanisms 200 alternately reach the trimming station 110 and the loading and unloading station 120.

[0027] When in use, by manipulating the driving mechanism 300, the driving mechanism 300 can drive the two material carriers 200 to reciprocate between the first end and the second end of the workbench 100, so that the two material carriers 200 can alternately reach the trimming station 110 and the loading and unloading station 120, and the backrest board 1 on the material carrier 200 that reaches the trimming station 110 can be trimmed by the trimming machine, and the backrest board 1 on the material carrier 200 that reaches the trimming station 110 can be trimmed by the trimming machine. When trimming, the backboard 1 on the loading mechanism 200 that arrives at the loading and unloading station 120 can be manually taken out, and the next backboard 1 to be trimmed can be placed into the cavity 210. In the utility model, in the process of placing and taking the backboard 1 on the loading mechanism 200 that arrives at the loading and unloading station 120, the cutter head of the trimming machine can trim the backboard 1 on the loading mechanism 200 that arrives at the trimming station 110, which saves the time for placing and taking the backboard 1 and improves the efficiency of the trimming work.

[0028] As a preferred embodiment, the trimming station 110 is arranged directly below the cutter head of the trimming machine, so that the cutter head of the trimming machine can perform trimming processing on the upper edge of the backrest board 1.

[0029] As a preferred embodiment, please refer to Figure 2 and Figure 3 The workbench 100 is provided with two first guide grooves 130 extending from the first end of the workbench 100 to the second end of the workbench 100. The two first guide grooves 130 are relatively arranged on both sides of the trimming station 110 and the loading and unloading station 120, so as to facilitate guiding the two loading mechanisms 200 respectively through the two first guide grooves 130 and avoid collision between the two loading mechanisms 200 when they approach each other.

[0030] As a preferred embodiment, please refer to Figure 2 and Figure 3The two loading mechanisms 200 each include a guide seat 220 and a loading seat 230. The two guide seats 220 are respectively slidably connected to the corresponding first guide groove 130 and can move along the length direction of the first guide groove 130. The two loading seats 230 are respectively slidably connected to the corresponding guide seats 220 and can move along the length direction perpendicular to the first guide groove 130. The cavity 210 is opened on the upper surface of the loading seat 230. The driving mechanism 300 is connected to the two guide seats 220 and is used to drive the two guide seats 220 to move in the corresponding first guide groove 130 in the opposite direction. When the two guide seats 220 are close to each other, the two loading seats 230 move away from each other. When the two guide seats 220 move away from each other, the two loading seats 230 are close to each other and reach the trimming station 110 and the loading and unloading station 1 respectively. 20, the two guide seats 220 are guided respectively by the two first guide grooves 130, so that the two guide seats 220 can reciprocate between the first end and the second end of the workbench 100 in opposite directions under the drive of the driving mechanism 300, so that the two loading slots can alternately reach the first end and the second end of the workbench 100, because when the two guide seats 220 approach each other, the two loading seats 230 move away from each other, which can prevent the two loading seats 230 from colliding when approaching each other, and when the two guide seats 220 move away from each other, the two loading seats 230 approach each other, so that the two loading seats 230 can move toward the trimming station 110 and the loading and unloading station 120 when reaching the first end and the second end of the workbench 100, and reach the trimming station 110 and the loading and unloading station 120.

[0031] As a preferred embodiment, please refer to Figure 2 and Figure 3 There is a distance between the mutually adjacent sides of the two guide seats 220, so that the two guide seats 220 will not collide when they reciprocate between the first end and the second end of the workbench 100 in opposite directions.

[0032] As a preferred embodiment, please refer to Figure 2 and Figure 3The workbench 100 is also provided with two second guide grooves 140 extending from the first end of the workbench 100 to the second end of the workbench 100, the two second guide grooves 140 are relatively arranged on the outer sides of the corresponding first guide grooves 130, the middle section of the second guide groove 140 is a broken line structure, and the distance from the middle section of the second guide groove 140 to the corresponding first guide groove 130 is greater than the distance from the end section of the second guide groove 140 to the corresponding first guide groove 130, so that when the two guide seats 220 are close to each other, the two material loading seats 230 can move away from each other in reverse, and when the two guide seats 220 are moving away in reverse, the two material loading seats 230 The two loading mechanisms 200 can be close to each other, and each of the two loading mechanisms 200 further includes a guide shaft 240. The upper ends of the two guide shafts 240 are rotatably connected to the corresponding loading seats 230, and the lower ends of the two guide shafts 240 are slidably connected to the corresponding second guide grooves 140. Through the sliding connection between the guide shaft 240 and the second guide groove 140, the movement of the loading seats 230 can be guided, so that when the two loading seats 230 move to the middle of the workbench 100, they can move away from each other, so that both the two loading seats 230 can pass smoothly, avoiding interference between the mutual movement of the two loading seats 230, and avoiding collision between the two loading seats 230.

[0033] As a preferred embodiment, please refer to Figure 2 and Figure 3 The two loading mechanisms 200 also include guide blocks 250. The two guide blocks 250 are respectively slidably disposed in the corresponding first guide grooves 130 and are respectively fixed to the bottoms of the corresponding guide seats 220. The sliding connection between the guide blocks 250 and the first guide grooves 130 can guide the movement of the guide seats 220, thereby improving the stability of the movement of the guide seats 220.

[0034] As a preferred embodiment, please refer to Figure 2 and Figure 3 The two guide seats 220 are each provided with a slide groove 221 extending in a length direction perpendicular to the first guide groove 130. The two loading mechanisms 200 also include a slider 260. The two sliders 260 are respectively slidably disposed in the corresponding slide grooves 221 and are respectively fixed to the bottom of the corresponding loading seat 230. The sliding connection between the slider 260 and the slide groove 221 can guide the movement of the loading seat 230, thereby improving the stability of the movement of the loading seat 230.

[0035] As a preferred embodiment, please refer to Figure 2 and Figure 3The workbench 100 is also provided with a through slot 150 extending from the first end of the workbench 100 to the second end of the workbench 100, and the through slot 150 is located between the two first guide slots 130. The driving mechanism 300 includes two gears 310, a chain belt 320 and a rotating driving member 330. The two gears 310 are both rotatably arranged on the lower surface of the workbench 100. The two gears 310 correspond to the trimming station 110 and the loading and unloading station 120 respectively. The chain belt 320 is a closed belt and is wound around the two gears 310. The ends of the two guide seats 220 are The parts all pass through the through slot 150 and are respectively fixedly connected to one side of the corresponding chain belt 320. The output end of the rotating driving member 330 is coaxially fixedly connected to one of the gears 310 for driving the corresponding gear 310 to rotate. By manipulating the rotating driving member 330, the rotating driving member 330 can drive the corresponding gear 310 to rotate, and drive the other gear 310 to rotate via the chain belt 320. According to the transmission principle of the chain belt 320 and the gear 310, the movement directions of the two sides of the chain belt 320 are opposite, so that the two guide seats 220 can move in opposite directions.

[0036] As a preferred embodiment, please refer to Figure 2 and Figure 4 The double-station feeding device for trimming the backrest board also includes an ejection mechanism 400, which is used to eject the backrest board 1 in the cavity 210. Since both sides of the backrest board 1 have convex structures and the distance between the edge of the backrest board 1 and the upper surface of the cavity 210 is small, it is inconvenient to take out the backrest board 1 placed in the cavity 210. The backrest board 1 in the cavity 210 can be ejected by the ejection mechanism 400.

[0037] As a preferred embodiment, please refer to Figure 4The material carrier 230 is provided with a receiving cavity 231 located below the mold cavity 210 and extending along the length direction of the first guide groove 130, and an ejection channel 232 whose upper and lower ends are respectively connected to the mold cavity 210 and the receiving cavity 231. The ejection mechanism 400 includes an ejection block 410, an ejection shaft 420, an elastic member 430 and a pressing shaft 440. The ejection block 410 is slidably disposed in the receiving cavity 231. The ejection block 410 is provided with an ejection groove 411. The bottom of the groove 411 is an inclined structure, and the ejection shaft 420 is slidably arranged in the ejection channel 232. The lower end of the ejection shaft 420 abuts against the bottom of the ejection groove 411. When the lower end of the ejection groove 411 abuts against the lower end of the ejection shaft 420, the upper end of the ejection shaft 420 is located in the ejection channel 232. The elastic member 430 is arranged in the receiving cavity 231, and the two ends of the elastic member 430 are respectively fixed to the loading seat 230 and the ejection block 410, so that the The lower end of the ejection groove 411 abuts against the lower end of the ejection shaft 420, and the pressing shaft 440 is arranged along the length direction of the receiving cavity 231. One end of the pressing shaft 440 is fixedly connected to the ejection block 410, and the other end of the pressing shaft 440 slides out to the outside of the loading seat 230. When the backrest plate 1 in the cavity 210 needs to be taken out, the pressing shaft 440 is pressed inward, so that the ejection block 410 can be pushed to move in the receiving cavity 231 via the pressing shaft 440, so that the backrest plate 1 in the cavity 210 can be taken out. The high end of the ejection groove 411 can abut against the lower end of the ejection shaft 420, so that the upper end of the ejection shaft 420 can be moved out of the ejection channel 232. When the ejection block 410 moves in the receiving cavity 231, it presses the elastic member 430, so that the elastic member 430 is in a compressed state. When the backrest plate 1 in the cavity 210 is taken out, the pressing shaft 440 is released, and the elastic member 430 releases elastic potential energy to push the ejection block 410 back to its initial state.

[0038] In order to better understand the present invention, the following Figure 1 - Figure 4 The working principle of the technical solution of the utility model is described in detail:

[0039] When in use, by manipulating the rotating driving member 330, the rotating driving member 330 can drive the corresponding gear 310 to rotate, and drive the other gear 310 to rotate via the chain belt 320. According to the transmission principle of the chain belt 320 and the gear 310, the movement directions of the two sides of the chain belt 320 are opposite, so that the two guide seats 220 can reciprocate between the first end and the second end of the workbench 100 in opposite directions, so that the two loading seats 230 can alternately reach the workbench. The first end and the second end of the workbench 100 are provided with a guide groove 140 to guide the movement of the material carrier 230. When the two guide seats 220 are close to each other, the two material carriers 230 can move away from each other. When the two guide seats 220 are moving away from each other, the two material carriers 230 can move close to each other, so that when the two material carriers 230 move to the middle of the workbench 100, they can pass smoothly, avoiding interference between the movement of the two material carriers 230 and preventing the two material carriers 230 from interfering with each other. When the two guide seats 220 are facing away from each other, the two material carriers 230 are close to each other, so that when the two material carriers 230 reach the first end and the second end of the workbench 100, they can move toward the trimming station 110 and the loading and unloading station 120 and reach the trimming station 110 and the loading and unloading station 120, and the backrest board 1 on the material carrier 230 that reaches the trimming station 110 can be trimmed by the trimming machine. When trimming the backrest board 1 on the loading mechanism 200 that arrives at the loading and unloading station 120, the backrest board 1 on the loading seat 230 can be manually taken out, and the next backrest board 1 to be trimmed can be placed into the cavity 210. In the utility model, in the process of placing and taking the backrest board 1 on the loading mechanism 200 that arrives at the loading and unloading station 120, the cutter head of the trimming machine can trim the backrest board 1 on the loading mechanism 200 that arrives at the trimming station 110, which saves the time for placing and taking the backrest board 1 and improves the efficiency of the trimming work.

[0040] The double-station feeding device for backrest board trimming provided by the utility model has the following beneficial effects:

[0041] (1) When the two guide seats 220 are close to each other, the two material carriers 230 can move away from each other, and when the two guide seats 220 are moving away from each other, the two material carriers 230 can move toward each other, so that when the two material carriers 230 move to the middle of the workbench 100, they can pass smoothly, avoiding interference between the two material carriers 230 and collision between the two material carriers 230. When the two guide seats 220 are moving away from each other, the two material carriers 230 move toward each other, so that when the two material carriers 230 reach the first end and the second end of the workbench 100, they can move toward the trimming station 110 and the loading and unloading station 120 and reach the trimming station 110 and the loading and unloading station 120;

[0042] (2) Since both sides of the backrest board 1 have convex structures and the distance between the edge of the backrest board 1 and the upper surface of the cavity 210 is small, it is inconvenient to take out the backrest board 1 placed in the cavity 210. The backrest board 1 in the cavity 210 can be ejected by the ejection mechanism 400, making it more convenient to take out the backrest board 1;

[0043] (3) In the utility model, in the process of placing the backrest board 1 on the loading mechanism 200 arriving at the loading and unloading station 120 and taking the backrest board 1, the cutter head of the trimming machine can trim the backrest board 1 on the loading mechanism 200 arriving at the trimming station 110, thereby saving the time of placing the backrest board 1 and taking the backrest board 1 and improving the efficiency of the trimming work.

[0044] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A double-station feeding device for backrest board trimming, It is characterized in that include: A workbench having a first end close to the trimming machine and a second end away from the trimming machine, wherein the first end of the workbench is used to form a trimming station, and the second end of the workbench is used to form a loading and unloading station; Two loading mechanisms are both slidably disposed on the workbench and each has a cavity for placing the backrest plate; The driving mechanism is connected to the two material-carrying mechanisms and is used to drive the two material-carrying mechanisms to move back and forth between the first end and the second end of the workbench, and to make the two material-carrying mechanisms alternately reach the trimming station and the loading and unloading station.

2. The double-station feeding device for backrest board trimming according to claim 1, It is characterized in that The trimming station is arranged directly below the cutter head of the trimming machine.

3. The double-station feeding device for backrest board trimming according to claim 2, It is characterized in that The workbench is provided with two first guide grooves extending from the first end of the workbench to the second end of the workbench, and the two first guide grooves are arranged oppositely at two sides of the trimming station and the loading and unloading station.

4. The double-station feeding device for backrest board trimming according to claim 3, It is characterized in that The two loading mechanisms each include a guide seat and a loading seat, the two guide seats are respectively slidably connected to the corresponding first guide grooves, and both can move along the length direction of the first guide groove, the two loading seats are respectively slidably connected to the corresponding guide seats, and both can move along the length direction perpendicular to the first guide groove, the cavity is opened on the upper surface of the loading seat, the driving mechanism is connected to the two guide seats, and is used to drive the two guide seats to move in opposite directions in the corresponding first guide grooves, when the two guide seats approach each other, the two loading seats move away from each other, when the two guide seats move away from each other, the two loading seats approach each other and reach the trimming station and the loading and unloading station respectively.

5. The double-station feeding device for backrest board trimming according to claim 4, It is characterized in that There is a distance between the mutually approaching sides of the two guide seats.

6. The double-station feeding device for backrest board trimming according to claim 4, It is characterized in that The workbench is also provided with two second guide grooves extending from the first end of the workbench to the second end of the workbench, the two second guide grooves are relatively arranged on the outer sides of the corresponding first guide grooves, the middle section of the second guide groove is a broken line structure, the distance from the middle section of the second guide groove to the corresponding first guide groove is greater than the distance from the end section of the second guide groove to the corresponding first guide groove, the two loading mechanisms also include guide shafts, the upper ends of the two guide shafts are respectively rotatably connected to the corresponding loading seats, and the lower ends of the two guide shafts are respectively slidably connected to the corresponding second guide grooves.

7. The double-station feeding device for backrest board trimming according to claim 4, It is characterized in that The two loading mechanisms also include guide blocks. The two guide blocks are respectively slidably disposed in the corresponding first guide grooves and are respectively fixed to the bottom of the corresponding guide seat.

8. The double-station feeding device for backrest board trimming according to claim 4, It is characterized in that The two guide seats are each provided with a slide groove extending in a length direction perpendicular to the first guide groove. The two loading mechanisms also include a slider. The two sliders are respectively slidably disposed in the corresponding slide grooves and are respectively fixed to the bottom of the corresponding loading seat.

9. The double-station feeding device for backrest board trimming according to claim 4, It is characterized in that The workbench is also provided with a through slot extending from the first end of the workbench to the second end of the workbench, and the through slot is located between the two first guide slots. The driving mechanism includes two gears, a chain belt and a rotating driving member. The two gears are rotatably arranged on the lower surface of the workbench, and the two gears correspond to the trimming station and the loading and unloading station one by one respectively. The chain belt is a closed belt and is wound around the two gears. The ends of the two guide seats pass through the through slot and are respectively fixedly connected to one side of the corresponding chain belt. The output end of the rotating driving member is coaxially fixedly connected to one of the gears for driving the corresponding gear to rotate.

10. The double-station feeding device for backrest board trimming according to claim 4, It is characterized in that It also includes an ejection mechanism, which is used to eject the backrest plate in the cavity.

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