Inner card folding machine capable of automatically feeding

Abstract

The inner card folding machine capable of achieving automatic feeding comprises a workbench, an inner folding mechanism used for conducting inner folding forming on a paper box is arranged at the top of the workbench, a feeding mechanism used for conveying the paper box to the inner folding mechanism is arranged at the top of the workbench, and a pre-bending mechanism is arranged at the top of the workbench. By means of the feeding mechanism composed of the storage frame, the connecting plate, the baffle and the conveying belt, the paper boxes can be conveyed to the inner folding mechanism one by one, automatic feeding and discharging of the paper boxes one by one are achieved, and therefore labor intensity is effectively reduced, production efficiency is improved, and the safety and automation level of overall operation are improved; the middle of a paper box is pressed downwards through the pressing wheel, the two sides of the paper box are bent upwards through the supporting plates on the two sides, automatic pre-bending treatment on the paper box is achieved, the accuracy, stability and efficiency of inner folding forming are improved, and the requirement for higher-quality packaging is met.

Description

Technical Field

[0001] The present invention relates to an inner-fold card machine, and particularly to an inner-fold card machine capable of automatic feeding. Background Art

[0002] In order to enhance the support performance of a paper box, it is necessary to perform "inner folding" on the paper box folded into a sheet shape to form a formed inner card structure. This structure is manifested as follows: both sides of the paper box stand up, the middle remains flat, and the whole is in a stepped shape; the middle area can be used to place items, and the parts standing up on both sides play a role in strengthening the overall support force of the paper box.

[0003] Currently, this process is mainly completed by an inner-fold card machine. Although the existing inner-fold card machines can achieve the basic inner folding and forming of the paper box, there are still the following deficiencies in practical applications:

[0004] 1. Lack of automatic feeding mechanism: Currently, most inner-fold card machines still rely on manual feeding and discharging one by one, which not only has a high labor intensity and low production efficiency, but also has certain safety hazards during the operation process, affecting the safety and automation level of the overall operation.

[0005] 2. Lack of pre-forming mechanism for pre-bending both sides of the paper box: The existing inner-fold card machines usually directly drive the middle pressing plate to press down through the middle cylinder, and at the same time, the side cylinders push the side pressing plates to press towards the middle to complete the inner folding and forming action, lacking the pre-forming step of pre-bending both sides of the paper box upwards, resulting in an unsatisfactory final forming effect, and prone to problems such as unclear creases and unstable structures, affecting the quality of the finished product. Summary of the Invention

[0006] The purpose of the present invention is to provide an inner-fold card machine with a pre-bending function and capable of automatic feeding in order to solve the above problems.

[0007] The present invention achieves the above object through the following technical solutions: A folding inner card machine capable of automatic feeding, comprising a workbench. A folding inner mechanism for folding the inner part of the paper box into shape is provided on the top of the workbench. A feeding mechanism for conveying the paper box to the folding inner mechanism is provided on the top of the workbench. The feeding mechanism includes a storage frame installed on the top of the workbench. A connecting plate is connected to one side of the storage frame. A baffle plate located inside the storage frame is connected to the connecting plate. A conveyor belt for conveying the paper box is provided on the top of the workbench. A gap allowing only a single paper box to pass through is provided between the bottom of the baffle plate and the top of the conveyor belt. A pre-bending mechanism is provided on one side of the top of the workbench near the storage frame. The pre-bending mechanism includes a mounting frame connected to one side of the top of the workbench near the storage frame. Screws are rotatably connected to the mounting frame at intervals. A plurality of pressing wheels are threadedly connected to each screw. Two fixing plates are symmetrically connected to one side of the top of the workbench near the storage frame. A supporting plate for supporting the paper box is slidably connected to the fixing plates through sliding rods. The side of the supporting plate close to the storage frame is designed with an inclined surface. Lead screws are rotatably connected to the sides of the two supporting plates away from each other. The two lead screws are respectively threadedly connected to the two fixing plates. A driving component for driving the screws to rotate is provided on the mounting frame.

[0008] Preferably, a sorting mechanism is provided on the top of the workbench. The sorting mechanism includes two connecting frames symmetrically and slidably arranged on the top of the workbench with the storage frame as the symmetry center. The two connecting frames are respectively fixedly connected to the sliding rods on the two fixing plates. The lower part of the connecting frame is slidably connected to a connecting block through a sliding rod. A spring is connected between the connecting block and the connecting frame. A roller is rotatably connected to the connecting block. Through openings for the roller to move are provided on both sides of the storage frame.

[0009] Preferably, guide plates are connected to the sides of the two supporting plates away from the storage frame.

[0010] Preferably, a conveying mechanism is provided on one side of the workbench. The conveying mechanism includes a conveyor belt arranged on one side of the workbench. A pushing member is provided on the side of the storage frame away from the baffle plate for pushing the paper box on the conveyor belt into the storage frame. A mounting plate is connected to the top of the storage frame. An infrared sensor is installed on the mounting plate.

[0011] Preferably, a collecting mechanism for collecting the paper boxes is provided on the other side of the workbench. The collecting mechanism includes a collecting frame connected to the other side of the workbench. A guide plate is connected to the top of the collecting frame. A blanking port communicating with the collecting frame is opened on the guide plate. A material taking port is opened at the lower part of the side of the collecting frame away from the conveyor belt. A receiving plate is provided inside the collecting frame. Vertical through holes are spaced apart on both sides of the collecting frame. Plug rods matching the through holes are slidably provided on both sides of the receiving plate. Two guide plates located above the receiving plate are connected inside the collecting frame. The upper parts of the two guide plates are bent outwards.

[0012] Preferably, a cleaning mechanism is provided on the outer wall of the collection box close to the conveyor belt for cleaning the conveyor belt. The cleaning mechanism includes a frame body connected to the outer wall of the collection box close to the conveyor belt. A roller brush in contact with the conveyor belt is rotatably connected to the upper side of the frame body. The connecting shaft on the conveyor belt close to the roller brush is drivingly connected to the roller brush through a second transmission assembly. A dust collection box for collecting impurities is provided on the lower side of the frame body. A support plate for supporting the dust collection box is connected to the outer wall of the collection box close to the conveyor belt.

[0013] Preferably, a baffle for blocking the paper box is connected to the side of the material guiding plate far from the conveyor belt.

[0014] Preferably, the pushing member includes an electric slide rail installed on the side of the storage box away from the baffle plate. A connecting plate is connected to the electric slide rail, and a pushing plate for pushing the paper box on the conveyor belt into the storage box is connected to the connecting plate.

[0015] Preferably, the driving assembly includes a motor installed on the mounting frame. The output shaft of the motor is connected to the corresponding screw rod, and two adjacent screw rods are drivingly connected through a first transmission assembly.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. Through the feeding mechanism composed of the storage box, connecting plate, baffle plate and conveyor belt, the paper boxes can be conveyed to the inner folding mechanism one by one, realizing automatic feeding and discharging of the paper boxes one by one, thereby effectively reducing the labor intensity, improving the production efficiency, and enhancing the safety and automation level of the overall operation.

[0018] 2. By pressing down the middle part of the paper box with the pressing wheel and bending the two sides of the paper box upward with the two side support plates, the automatic pre-bending treatment of the paper box is realized, so as to improve the accuracy, stability and efficiency of the inner folding forming, and meet the requirements of higher-quality packaging.

[0019] 3. Through the two side rotating rollers, the paper boxes can be sorted and centered, thereby effectively preventing the paper boxes from being skewed when placed in the storage box, and improving the accuracy and stability of the subsequent inner folding forming.

[0020] 4. Through the conveying mechanism composed of the conveyor belt, pushing member and infrared sensor, when there is no paper box in the storage box, the paper box can be automatically pushed into the storage box to realize automatic feeding, greatly improving the working efficiency.

[0021] 5. Through the collection mechanism composed of components such as the collection box, material guiding plate, receiving plate and guide plate, the paper boxes after inner folding treatment can be collected, and the paper boxes are neatly stacked from bottom to top on the receiving plate for subsequent taking, without manual additional sorting of the paper boxes.

[0022] 6. The roller brush can clean the impurities on the surface of the conveyor belt, preventing a large amount of impurities from adhering to and staying on the conveyor belt, thus keeping the conveyor belt clean, avoiding the transfer of impurities to the paper box, and ensuring the cleanliness of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional structural schematic diagram of the present invention.

[0024] Figure 2 This is a three-dimensional structural schematic of a part of the present invention Figure 1 .

[0025] Figure 3 This is a three-dimensional structural schematic diagram of the pre-bending mechanism of the present invention.

[0026] Figure 4 This is a connection schematic diagram of the nut, screw rod and pressing wheel of the present invention.

[0027] Figure 5 This is a three-dimensional structural schematic diagram of the sorting mechanism of the present invention.

[0028] Figure 6 This is a connection schematic diagram of the connecting frame, sliding rod, connecting block, rotating roller and spring of the present invention.

[0029] Figure 7 This is a three-dimensional structural schematic of a part of the present invention.

[0030] Figure 8 This is a three-dimensional structural schematic diagram of the collection mechanism and cleaning mechanism of the present invention.

[0031] In the figure: 1 - workbench, 21 - frame, 22 - first cylinder, 23 - lower pressing plate, 24 - second cylinder, 25 - side pressing plate, 31 - storage frame, 32 - connecting plate, 33 - baffle plate, 34 - conveyor belt, 341 - connecting shaft, 40 - nut, 41 - mounting bracket, 42 - screw rod, 43 - pressing wheel, 44 - motor, 45 - first transmission assembly, 46 - fixing plate, 47 - sliding rod, 48 - support plate, 49 - lead screw, 51 - connecting frame, 52 - sliding rod, 53 - connecting block, 54 - rotating roller, 55 - spring, 6 - guiding plate, 71 - conveyor belt, 72 - pushing member, 721 - electric slide rail, 722 - connecting plate, 723 - pushing plate, 73 - mounting plate, 74 - infrared sensor, 81 - collection box, 82 - guiding plate, 83 - blanking port, 84 - material taking port, 85 - receiving plate, 86 - jack, 87 - inserting rod, 88 - guiding plate, 91 - frame body, 92 - roller brush, 93 - second transmission assembly, 94 - supporting plate, 95 - dust collection box, 10 - baffle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] See Figures 1-4A folding card machine capable of automatic feeding comprises a workbench 1, a folding mechanism for folding a paper box folded into a sheet is provided on the right side of the top of the workbench 1, the folding mechanism comprises a frame 21 connected to the right side of the top of the workbench 1, a cylinder 1 22 is installed on the top of the frame 21, a piston rod of the cylinder 1 22 slides through the top of the frame 21 and is connected to a lower pressure plate 23, two cylinders 24 are symmetrically installed on the right side of the top of the workbench 1, a side pressure plate 25 is connected to the piston rod of the cylinder 24, a feeding mechanism for conveying the paper box folded into a sheet to the folding mechanism is provided on the left side of the top of the workbench 1, and the feeding mechanism comprises a A material storage frame 31 is mounted on the left side of the top of the workbench 1. The upper and lower sides and the left and right sides of the material storage frame 31 are all open-type designs. A connecting plate 32 is connected to the left side of the material storage frame 31. A baffle plate 33 located in the material storage frame 31 is connected to the left side of the connecting plate 32. A conveyor belt 34 for conveying paper boxes is provided on the top of the workbench 1. A gap is provided between the bottom of the baffle plate 33 and the top of the conveyor belt 34 for only a single paper box to pass through. The angle between the baffle plate 33 and the material storage frame 31 is 45 degrees, so that the paper boxes can be stacked and stored in the material storage frame 31 from bottom to top in an inclined manner, so as to be convenient for subsequent conveying one by one by the conveyor belt 34. The pre-bending mechanism on the right side of the material storage frame 31 includes a mounting frame 41 connected to the left front side of the top of the workbench 1. The mounting frame 41 is located on the right side of the material storage frame 31. The mounting frame 41 is evenly spaced from left to right and rotatably connected with screws 42. Each screw 42 is threadedly connected with a plurality of pressure wheels 43. Each screw 42 is threadedly connected with two front and rear nuts 40 for positioning the pressure wheels 43. Two fixed plates 46 are symmetrically connected to the top of the workbench 1. The fixed plate 46 is located on the right side of the material storage frame 31. The fixed plate 46 is slidably connected with two left and right slide bars 47. The left and right slide bars 47 are connected There is a support plate 48 for supporting the paper box. The left side of the support plate 48 adopts an inclined design. The two sides of the two support plates 48 that are away from each other are rotatably connected with screw rods 49. The two screw rods 49 are respectively threadedly connected to the two fixed plates 46. The mounting frame 41 is provided with a driving assembly for driving the screw rod 42 to rotate. The driving assembly includes a motor 44 installed on the left front side of the mounting frame 41. The output shaft of the motor 44 is connected to the leftmost screw rod 42. The two adjacent screw rods 42 are connected by a transmission assembly 45. In a specific implementation, the transmission assembly 45 can be a belt transmission assembly, a synchronous belt transmission assembly, a chain transmission assembly, etc.

[0033] Place the cartons stacked from bottom to top into the storage bin 31 to the right. Since there is a gap only allowing a single carton to pass between the bottom of the baffle 33 and the top of the conveyor belt 34, the intermittent rotation of the conveyor belt 34 can intermittently convey the cartons from bottom to top in the storage bin 31 to the right one by one between the side pressing plates 25 on the front and back sides, realizing the automatic loading and unloading of cartons one by one, thus effectively reducing the labor intensity, improving the production efficiency, and enhancing the safety and automation level of the overall operation. Since the left side of the support plate 48 is beveled, when the carton is conveyed to the right, its front and back sides can smoothly move up onto the support plate 48. The middle part of the carton is pressed down by the pressing wheel 43, and the front and back sides of the carton are bent upward by the support plates 48 on the front and back sides, realizing the automatic pre-bending treatment of the carton to improve the accuracy, stability and efficiency of the inner folding forming and meet the requirements of higher-quality packaging. At the same time, control the motor 44 to drive the screw 42 connected to it to rotate, drive the other screws 42 to rotate synchronously through the transmission component 45, and the rotation of the screw 42 drives the pressing wheel 43 to rotate to push the carton to the right, so as to prevent the carton from getting stuck between the support plate 48 and the pressing wheel 43 and ensure that the carton can be smoothly conveyed to the right. Since the pressing wheel 43 is threadedly connected to the screw 42, the number of pressing wheels 43 can be adjusted according to the width of the carton to adapt to cartons of different width specifications. Rotating the screw 42 can adjust the distance between the two support plates 48 to adapt to cartons of different width specifications. After the carton is conveyed to the right between the side pressing plates 25 on the front and back sides, first control the two cylinders 24 to drive the two side pressing plates 25 to approach each other and apply pressure to the front and back sides of the carton synchronously, and then control the cylinder 22 to drive the lower pressing plate 23 to move down and apply pressure to the middle part of the carton, so that the front and back sides of the carton stand up and the middle part remains flat, presenting a stepped shape as a whole to complete the inner folding forming. After the inner folding forming of the carton, control the two cylinders 24 to drive the two side pressing plates 25 to move away from each other, and control the cylinder 22 to drive the lower pressing plate 23 to move up and reset. The carton after inner folding forming is then conveyed to the right by the conveyor belt 34 and taken away.

[0034] See Figure 2 , Figure 5 and Figure 6As shown in the figure, a sorting mechanism is provided on the top of the workbench 1. The sorting mechanism includes a connecting frame 51, a sliding rod 52, a connecting block 53, a rotating roller 54 and a spring 55. On the top of the left side of the workbench 1, chutes are symmetrically opened before and after with the storage box 31 as the symmetry center. In the chutes on the front and rear sides, connecting frames 51 are slidably connected. The two connecting frames 51 are respectively fixedly connected to the left sliding rods 47 on the two fixed plates 46. The lower part of the connecting frame 51 is slidably connected with two groups of left and right sliding rods 52. The number of each group of sliding rods 52 is two. The two sliding rods 52 in each group are symmetrically arranged left and right. Connecting blocks 53 are connected to each group of sliding rods 52. Between the connecting block 53 and the connecting frame 51, there are two left and right springs 55. A rotating roller 54 is rotatably connected to the connecting block 53. On the front and rear sides of the storage box 31, two left and right openings are opened for the front and rear movement of the rotating roller 54.

[0035] When the front and rear support plates 48 approach or move away from each other, the connecting frames 51 on the front and rear sides are driven to approach or move away from each other through the sliding rods 47, thereby driving the rotating rollers 54 on the front and rear sides to approach or move away from each other to adapt to cartons of different width specifications. Through the buffer structure composed of the sliding rod 52, the connecting block 53 and the spring 55, it can be avoided that the rotating roller 54 directly and rigidly squeezes the carton, resulting in the deformation of the carton, and the buffer protection of the carton is realized. Through the rotating rollers 54 on the front and rear sides to sort and center the cartons, it can effectively prevent the cartons from tilting front and back when entering the storage box 31 to the right, thereby improving the accuracy and stability of subsequent inner folding and forming.

[0036] See Figure 3 , on the right sides of the two support plates 48, guide plates 6 are connected. The shape of the guide plate 6 is L-shaped. Through the front and rear two guide plates 6, the cartons after pre-bending treatment can be guided to avoid the front and back offset of the cartons after pre-bending treatment during the rightward conveying process, thereby improving the accuracy of subsequent inner folding and forming.

[0037] See Figure 2 , a conveying mechanism is provided on the left side of the workbench 1. The conveying mechanism includes a conveyor belt 71 provided on the left side of the workbench 1. On the left front side of the storage box 31, a pusher 72 is provided for pushing the cartons on the conveyor belt 71 into the storage box 31. The pusher 72 includes an electric slide rail 721 installed on the left front side of the storage box 31. A connecting plate 722 in the shape of an L is connected to the slider of the electric slide rail 721. A push plate 723 for pushing the cartons on the conveyor belt 71 into the storage box 31 is connected to the connecting plate 722. The included angle between the push plate 723 and the connecting plate 722 is 45 degrees, so that the cartons can be stacked and stored in the storage box 31 in an inclined manner from bottom to top. An installation plate 73 is connected to the top of the storage box 31. An infrared sensor 74 is installed in the middle of the installation plate 73.

[0038] When the infrared sensor 74 detects that there is no carton in the material storage frame 31, it will send a signal to the controller (the controller is a prior art, not shown in the figure, and will not be repeated here). After receiving the signal, the controller first controls the conveyor belt 71 to rotate, and the carton stacked and stored on it from bottom to top is conveyed forward until it is aligned with the material storage frame 31 and the push plate 723; then the controller controls the electric slide rail 721 to drive the connecting plate 722 to move to the right, thereby driving the push plate 723 to move to the right to push the carton into the material storage frame 31, realizing automatic material replenishment, greatly improving work efficiency. When the infrared sensor 74 detects that there is a carton in the material storage frame 31, it will also send a signal to the controller. After receiving the signal, the controller controls the electric slide rail 721 to drive the connecting plate 722 to drive the push plate 723 to reset to the left, in preparation for the next material replenishment.

[0039] See Figure, Figure 7 and Figure 8 A collecting mechanism for collecting paper boxes is provided on the right side of the workbench 1. The collecting mechanism includes a collecting frame 81 connected to the right side of the workbench 1. The top of the collecting frame 81 adopts an open design. A material guide plate 82 is connected to the top of the collecting frame 81. The material guide plate 82 is provided with an inclined section and a horizontal section. A material drop opening 83 connected to the collecting frame 81 is provided at the horizontal section of the material guide plate 82. A material taking opening 84 is provided at the lower right side of the collecting frame 81. A material receiving plate 85 is provided in the collecting frame 81. The front and rear ends of the collecting frame 81 are provided with a material receiving plate 85. There are vertically spaced holes 86 on the sides, and the front and rear sides of the receiving plate 85 are slidably provided with plug rods 87 matching the holes 86. Two front and rear guide plates 88 are connected to the collection frame 81, and the guide plates 88 are located on the upper side of the receiving plate 85. The upper parts of the two guide plates 88 are bent outward. A baffle 10 for blocking the paper box is connected to the right side of the guide plate 82 to prevent the paper box from sliding too much to the right and falling from the right side of the guide plate 82, thereby ensuring that the paper box falls accurately into the collection frame 81 through the drop port 83.

[0040] The folded cartons are conveyed to the right onto the guide plate 82 by the conveyor belt 34, and the cartons are guided to the right onto the material drop opening 83 by the guide plate 82. The cartons then drop into the collection frame 81 through the material drop opening 83 for collection. The cartons are received by the receiving plate 85 to prevent the cartons from falling directly from a high place and being scattered. The cartons can be guided by the guide plate 88 to ensure that the cartons are neatly stacked from bottom to top and stored on the receiving plate 85 for subsequent retrieval without the need for manual additional tidying of the cartons. The locking of the receiving plate 85 can be released by pulling out the insertion rod 87 from the uppermost insertion hole 86, and then the receiving plate 85 can be moved down to drive the cartons on it to move down to the material removal opening 84, and then the neatly stacked cartons from bottom to top can be taken out of the collection frame 81. After the paper box is taken out, the receiving plate 85 is moved up and reset, and the insertion rod 87 is inserted into the insertion hole 86 at the uppermost end to re-lock the receiving plate 85.

[0041] See also Figures 7-8The left outer wall of the collecting frame 81 is provided with a cleaning mechanism for cleaning the conveyor belt 34. The cleaning mechanism includes a frame body 91 connected to the left outer wall of the collecting frame 81. The upper and lower sides of the frame body 91 are both open-type in design. A roller brush 92 in contact with the conveyor belt 34 is rotatably connected to the upper side of the frame body 91. The roller brush 92 is located at the lower side of the conveyor belt 34. When the roller brush 92 rotates, the bristles on the roller brush 92 can contact the right inner wall of the frame body 91, thereby scraping off the impurities adhering to the roller brush 92 to prevent a large amount of impurities from remaining on the roller brush 92. The right connecting shaft 341 on the conveyor belt 34 is connected to the roller brush 92 through a transmission component 93. In a specific implementation, the transmission component 93 can be a belt transmission component, a synchronous belt transmission component, a chain transmission component, etc. A dust collecting frame 95 for collecting impurities is provided on the lower side of the frame body 91, and a support plate 94 for lifting the dust collecting frame 95 is connected to the left outer wall of the collecting frame 81.

[0042] When the conveyor belt 34 drives the right connecting shaft 341 thereon to rotate, the roller brush 92 is driven to rotate through the transmission component 2 93. The roller brush 92 can clean the conveyor belt 34 by rotating to prevent a large amount of impurities from adhering to and staying on the conveyor belt 34, thereby keeping the conveyor belt 34 clean and preventing impurities from being transferred to the paper box, thereby ensuring the cleanliness of the product. The impurities cleaned from the conveyor belt 34 fall into the dust collecting frame 95 through the frame 91 for collection. The dust collecting frame 95 can be removed from the support plate 94 to clean the impurities in the dust collecting frame 95. The operation is convenient and quick.

Claims

1. An automatic feeding inner folding machine for cartons, comprising a workbench (1), and an inner folding mechanism for folding the inner part of the carton into shape is arranged on the top of the workbench (1), characterized in that, At the top of the workbench (1), there is a feeding mechanism for conveying the paper box to the inner folding mechanism. The feeding mechanism includes a storage frame (31) installed at the top of the workbench (1). One side of the storage frame (31) is connected with a connecting plate (32), and a baffle plate (33) located inside the storage frame (31) is connected to the connecting plate (32). At the top of the workbench (1), there is a conveyor belt (34) for conveying the paper box. There is a gap only allowing a single paper box to pass between the bottom of the baffle plate (33) and the top of the conveyor belt (34). On one side of the top of the workbench (1) close to the storage frame (31), there is a pre-bending mechanism. The pre-bending mechanism includes a mounting frame (41) connected to one side of the top of the workbench (1) close to the storage frame (31). A screw rod (42) is rotatably connected to the mounting frame (41) at intervals. A plurality of pressing wheels (43) are threadedly connected to each screw rod (42). On one side of the top of the workbench (1) close to the storage frame (31), two fixing plates (46) are symmetrically connected. A supporting plate (48) for supporting the paper box is slidably connected to the fixing plate (46) through a sliding rod (47). The side of the supporting plate (48) close to the storage frame (31) is designed with an inclined surface. On the side of each of the two supporting plates (48) away from each other, a lead screw (49) is rotatably connected. The two lead screws (49) are respectively threadedly connected to the two fixing plates (46). A driving component for driving the screw rod (42) to rotate is provided on the mounting frame (41).

2. The automatic feeding folding inner card machine according to claim 1, characterized in that, At the top of the workbench (1), there is an organizing mechanism. The organizing mechanism includes two connecting frames (51) symmetrically and slidably arranged at the top of the workbench (1) with the storage frame (31) as the symmetry center. The two connecting frames (51) are respectively fixedly connected to the sliding rods (47) on the two fixing plates (46). The lower part of the connecting frame (51) is slidably connected with a connecting block (53) through a sliding rod (52). A spring (55) is connected between the connecting block (53) and the connecting frame (51). A rotating roller (54) is rotatably connected to the connecting block (53). Through openings for the rotating roller (54) to move are opened on both sides of the storage frame (31).

3. The folding inner card machine capable of automatic feeding according to claim 2, characterized in that, Guide plates (6) are connected to the sides of the two supporting plates (48) away from the storage frame (31).

4. The in-fold card machine capable of automatic feeding according to claim 3, characterized in that, On one side of the workbench (1), there is a conveying mechanism. The conveying mechanism includes a conveyor belt (71) arranged on one side of the workbench (1). A pushing member (72) is provided on the side of the storage frame (31) away from the baffle plate (33) for pushing the paper box on the conveyor belt (71) into the storage frame (31). A mounting plate (73) is connected to the top of the storage frame (31), and an infrared sensor (74) is installed on the mounting plate (73).

5. The in-fold card machine capable of automatic feeding according to claim 4, characterized in that, On the other side of the workbench (1), there is a collecting mechanism for collecting paper boxes. The collecting mechanism includes a collecting frame (81) connected to the other side of the workbench (1). The top of the collecting frame (81) is connected with a guiding plate (82). A blanking port (83) communicating with the collecting frame (81) is opened on the guiding plate (82). A material taking port (84) is opened at the lower part of the side of the collecting frame (81) far from the conveyor belt (34). A receiving plate (85) is arranged in the collecting frame (81). Insertion holes (86) are vertically spaced apart on both sides of the collecting frame (81). Insertion rods (87) matching the insertion holes (86) are slidably arranged on both sides of the receiving plate (85). Two guiding plates (88) located above the receiving plate (85) are connected in the collecting frame (81). The upper parts of the two guiding plates (88) are bent outwards.

6. The automatic feeding folding inner card machine according to claim 5, characterized in that, A cleaning mechanism is arranged on the outer wall of the collecting frame (81) close to the conveyor belt (34) for cleaning the conveyor belt (34). The cleaning mechanism includes a frame body (91) connected to the outer wall of the collecting frame (81) close to the conveyor belt (34). A roller brush (92) contacting the conveyor belt (34) is rotatably connected to the upper side of the frame body (91). A connecting shaft (341) on the conveyor belt (34) close to the roller brush (92) is in transmission connection with the roller brush (92) through a second transmission assembly (93). A dust collecting frame (95) for collecting impurities is arranged at the lower side of the frame body (91). A supporting plate (94) for supporting the dust collecting frame (95) is connected to the outer wall of the collecting frame (81) close to the conveyor belt (34).

7. A folding inner card machine capable of automatic feeding according to claim 5, characterized in that, A baffle (10) for blocking paper boxes is connected to the side of the guiding plate (82) far from the conveyor belt (34).

8. A folding inner card machine capable of automatic feeding according to claim 4, characterized in that, The pushing member (72) includes an electric slide rail (721) installed on the side of the storage frame (31) far from the baffle plate (33). A connecting plate (722) is connected to the electric slide rail (721). A pushing plate (723) for pushing the paper boxes on the conveyor belt (71) into the storage frame (31) is connected to the connecting plate (722).

9. The automatic feeding folding inner card machine according to claim 1, characterized in that, The driving assembly includes a motor (44) installed on the mounting frame (41). The output shaft of the motor (44) is connected to the corresponding screw rod (42). Adjacent two screw rods (42) are in transmission connection through a first transmission assembly (45).

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