A blanking device and a paper dinner plate forming machine

Abstract

This application relates to the technical field of paper dinner plate processing, and provides a blanking device, including a mounting base, a driving member, a connecting base and a blanking assembly; the connecting plate is located above the mounting base, the connecting cylinder is arranged on the connecting plate, the abutting column is slidably connected in the connecting cylinder, and the first spring is arranged between the abutting column and the connecting cylinder; a connecting groove is formed in the connecting plate, a plugging groove is formed in the abutting column, the plugging block is slidably connected in the connecting groove, and the second spring is arranged between the plugging block and the bottom wall of the connecting groove; the abutting plate is located above the mounting base, and the third spring is arranged between the abutting plate and the mounting base; one end of a plurality of the blanking plates is arranged on the abutting plate, and the blanking plates are located on the periphery of the suction cup. Based on this, the blanking effect of the paper dinner plate can be improved. In addition, a paper dinner plate forming machine is also provided.

Description

Technical Field

[0001] The present application relates to the field of paper dinner plate processing, and particularly relates to a blanking device and a paper dinner plate forming machine. Background Art

[0002] A paper dinner plate is a tableware made of paper materials, which is used to replace traditional plastic dinner plates to reduce environmental pollution. Due to the advantages of being light, easy to degrade, and environmentally friendly, paper dinner plates are widely used in some fast food restaurants, takeaways, and other occasions. Among them, paper dinner plates are processed by a forming machine.

[0003] In the related art, a paper dinner plate forming machine includes a frame, a pulp foaming device, a forming device, and a blanking device. The pulp foaming device, the forming device, and the blanking device are sequentially installed on the frame. Through the cooperation of the pulp foaming device and the forming device, the forming of the paper dinner plate is realized, and then the formed paper dinner plates are stacked and blanked through the blanking device.

[0004] Among them, the blanking device includes a connecting plate, a mounting seat, a plurality of suction cups, and a driving component. The connecting plate is slidably connected to the frame in the horizontal direction, the mounting seat is slidably connected to the connecting plate in the vertical direction, a plurality of suction cups are installed on the lower side of the mounting seat and are connected to a blower, and the driving component is used to drive the connecting plate and the mounting seat to slide. After the paper dinner plate is formed, the driving component drives the connecting plate to slide, and then drives the mounting seat to slide through the driving component, so that the plurality of suction cups are located above the paper dinner plate. At the same time, the blower works to adsorb the paper dinner plate. Then, the driving component drives the mounting seat and the connecting plate to slide, and then the blower stops working to release the adsorption of the paper dinner plate by each suction cup, so that the paper dinner plate is separated from the suction cup and blanked onto the frame. This process is repeated in a cycle to realize the stacking and blanking of the paper dinner plates.

[0005] However, in actual applications, the timing of the paper dinner plate separating from the suction cup is sometimes incorrect, resulting in the offset of the blanking position of the paper dinner plate, making it difficult to stack the subsequent paper dinner plates and resulting in a poor blanking effect of the paper dinner plate. Therefore, improvement is needed. Summary of the Invention

[0006] In order to improve the blanking effect of the paper dinner plate, in the first aspect, the present application provides a blanking device.

[0007] The blanking device provided by the present application adopts the following technical solutions:

[0008] A blanking device includes a mounting seat, a driving member, a connecting seat, and a blanking component; the mounting seat is slidably connected to the connecting seat in the vertical direction under the drive of the driving member;

[0009] The connecting seat includes a connecting plate, a connecting cylinder, an abutting column, a first spring, a plugging block, a second spring and a pulling rope; the connecting plate is located above the mounting seat, the connecting cylinder is arranged on the connecting plate, the abutting column is slidably connected in the connecting cylinder, the first spring is arranged between the abutting column and the connecting cylinder to drive the abutting column to approach the mounting seat; a connecting groove is formed in the connecting plate, a plugging groove is formed in the abutting column, the plugging block is slidably connected in the connecting groove, a chamfer is arranged on the lower side of one end of the plugging block close to the plugging groove, the second spring is arranged between the plugging block and the bottom wall of the connecting groove to drive the plugging block to be plugged into the plugging groove; the pulling rope is movably threaded through the connecting plate, one end of the pulling rope is arranged at one end of the plugging block close to the second spring, and the other end is arranged on the driving member;

[0010] The blanking assembly includes a plurality of suction cups, a fan, an abutting plate, a third spring and a plurality of blanking plates; the plurality of suction cups are arranged on the lower side of the mounting seat and communicated with the fan; the abutting plate is located above the mounting seat, the third spring is arranged between the abutting plate and the mounting seat to drive the abutting plate to approach the connecting plate; one ends of the plurality of blanking plates are arranged on the abutting plate and are slidably connected to the mounting seat in the vertical direction, and each blanking plate is located on the periphery of each suction cup.

[0011] By adopting the above technical scheme, in practical applications, the fan works to enable each suction cup to adsorb the paper dinner plates. During the process that the driving member drives the mounting seat to move downward to the paper dinner plate blanking position, the pulling rope is switched from a loose state to a taut state to pull the plugging block to compress the second spring and disengage from the plugging groove, so that the abutting column is abutted tightly against the abutting plate under the drive of the first spring, and drives the abutting plate to move downward and compress the third spring. Each blanking plate follows the abutting plate to move downward, so that each blanking plate moves to the lower side of each suction cup, so that each paper dinner plate disengages from each suction cup, and can abut the corresponding paper dinner plate on the stacked paper dinner plates to ensure the timing of the paper dinner plate disengaging from the suction cup, thereby improving the blanking effect of the paper dinner plates.

[0012] Preferably, a mounting post is arranged on the upper side of the mounting seat, and the third spring is placed in the mounting post.

[0013] By adopting the above technical scheme, by arranging the mounting post, the third spring can be installed by being placed in the mounting post, so as to facilitate the installation and disassembly of the third spring. At the same time, when the upper end of the mounting post abuts against the abutting plate, the further movement of the abutting plate can be restricted to ensure that there is a certain gap between the abutting plate and the mounting seat, and the wiring between the suction cup and the fan is avoided being squeezed as much as possible.

[0014] Preferably, a mounting sleeve is threadedly connected to the upper end of the mounting post.

[0015] By adopting the above technical solution, by providing the mounting sleeve and rotating the mounting sleeve, the distance between the abutting plate and the mounting base can be adjusted, so that the position of the blanking plate can be adjusted, enabling the blanking plate to accurately and stably blank paper dinner plates.

[0016] Preferably, the blanking assembly further includes a contact switch and a controller. The contact switch is provided at the upper end of the mounting post, and the controller is electrically connected to the contact switch and the blower.

[0017] By adopting the above technical solution, by providing the contact switch and the controller, when the abutting plate abuts against the contact switch, the contact switch transmits the contact signal to the controller, causing the controller to control the blower to stop working, which is more convenient for the blanking plate to blank paper dinner plates.

[0018] Preferably, the connecting seat further includes a guide rod. The guide rod is provided at the lower end of the abutting post. The guide rod passes through the abutting plate, the mounting post and the mounting base, and the third spring is sleeved on the guide rod.

[0019] By adopting the above technical solution, by providing the guide rod, the bending deformation of the third spring can be restricted, so as to improve the service life of the third spring, and the force exerted by the third spring on the abutting plate is more uniform, improving the stability of the movement of the abutting plate. At the same time, it can also guide the movement of the abutting plate.

[0020] Preferably, the upper end of the blanking plate is inserted into the abutting plate.

[0021] By adopting the above technical solution, by providing the upper end of the blanking plate inserted into the abutting plate, a detachable connection between the blanking plate and the abutting plate is realized, facilitating the installation and disassembly of the blanking plate.

[0022] Preferably, the blanking assembly further includes a limiting seat. The limiting seat is located above the abutting plate and is clamped in each blanking plate.

[0023] By adopting the above technical solution, by providing the limiting seat, the limiting seat is clamped in each blanking plate, thereby improving the stability of the detachable connection between the blanking plate and the abutting plate, and improving the stability of blanking paper dinner plates.

[0024] Preferably, the guide rod is inserted into the limiting seat.

[0025] By adopting the above technical solution, by providing the guide rod inserted into the limiting seat, the displacement of the limiting seat is restricted, further ensuring the stability of the detachable connection between the blanking plate and the abutting plate.

[0026] Preferably, an embedding groove is provided on the upper side of the limiting seat for the lower end of the abutting post to be embedded.

[0027] By adopting the above technical solution, by providing the slot, the abutting column is embedded in the slot under the drive of the first spring, so that the abutting column can drive the abutting plate to move more stably through the limiting seat, thereby improving the stability of the blanking of the paper dinner plate.

[0028] In a second aspect, the present application provides a paper dinner plate forming machine.

[0029] The paper dinner plate forming machine provided by the present application adopts the following technical solution:

[0030] A paper dinner plate forming machine includes the blanking device described above.

[0031] In summary, the present application includes at least one of the following beneficial technical effects:

[0032] 1. During the process that the driving member drives the mounting seat to move downward to the paper dinner plate blanking position, the pull rope switches from a slack state to a taut state, so as to pull the plugging block to compress the second spring and disengage from the plugging slot, so that the abutting column abuts tightly against the abutting plate under the drive of the first spring, and drives the abutting plate to move downward and compress the third spring. Each blanking plate moves downward following the abutting plate, so that each blanking plate moves to the lower side of each suction cup, so that each paper dinner plate disengages from each suction cup, and can abut the corresponding paper dinner plate against the stacked paper dinner plates, so as to ensure the timing of the paper dinner plate disengaging from the suction cup, thereby improving the blanking effect of the paper dinner plate;

[0033] 2. By providing the mounting post, the third spring can be installed by placing it on the mounting post, which is convenient for the installation and disassembly of the third spring. At the same time, when the upper end of the mounting post abuts against the abutting plate, it can limit the further movement of the abutting plate, so as to ensure that there is a certain gap between the abutting plate and the mounting seat, and try to avoid the wiring between the suction cup and the blower from being squeezed;

[0034] 3. By providing the guide rod, it can limit the bending deformation of the third spring, so as to improve the service life of the third spring, and make the force exerted by the third spring on the abutting plate more uniform, improve the stability of the movement of the abutting plate, and can also guide the movement of the abutting plate, and at the same time limit the displacement of the limiting seat, thereby ensuring the stability of the detachable connection between the blanking plate and the abutting plate. Description of the Drawings

[0035] Figure 1 is the overall structural schematic diagram of the blanking device in the embodiment of the present application;

[0036] Figure 2 is the sectional structural schematic diagram of the connecting seat in the embodiment of the present application;

[0037] Figure 3 is the front structural schematic diagram of the blanking device in the embodiment of the present application;

[0038] Figure 4 It is a partial explosion schematic diagram of the blanking device in the embodiment of the present application;

[0039] Figure 5 It is a partial structural schematic diagram of the blanking device in the embodiment of the present application.

[0040] Reference numerals: 1, mounting base; 11, mounting plate; 12, guiding track; 13, mounting column; 14, mounting sleeve; 2, driving member; 3, connecting seat; 31, connecting plate; 311, communication hole; 312, connecting groove; 32, connecting cylinder; 33, abutting column; 331, inserting groove; 34, first spring; 35, inserting block; 351, chamfer; 36, second spring; 37, pulling rope; 38, guiding rod; 4, blanking assembly; 41, suction cup; 42, abutting plate; 43, third spring; 44, blanking plate; 45, contact switch; 46, limiting seat; 461, embedding groove. Detailed implementation manners

[0041] The following further elaborates on the present application in conjunction with the attached Figures 1-5 drawings.

[0042] The embodiment of the present application discloses a blanking device.

[0043] Referring to Figure 1 , the blanking device includes a mounting base 1, a driving member 2, a connecting seat 3 and a blanking assembly 4. The mounting base 1 includes a mounting plate 11 and two guiding tracks 12. The mounting plate 11 is horizontally arranged, and the two guiding tracks 12 are vertically and fixedly connected to the upper side of the mounting plate 11 and are slidably connected to the connecting seat 3. In this embodiment, the driving member 2 is a cylinder. The driving member 2 is fixedly connected to the connecting seat 3 and the power output shaft is fixedly connected to the upper side of the mounting plate 11 to drive the mounting base 1 to slide in the vertical direction. Of course, in other embodiments, the driving member 2 can also be an oil cylinder, an electric push cylinder, etc., which are not limited in the present application.

[0044] Referring to Figure 1 and Figure 2 , the connecting seat 3 includes a connecting plate 31, a connecting cylinder 32, an abutting column 33, a first spring 34, an inserting block 35, a second spring 36 and a pulling rope 37. The connecting plate 31 is parallel to the mounting plate 11 and is located above the mounting plate 11. The connecting cylinder 32 is hollow and has an open lower end. The connecting cylinder 32 is vertically and fixedly connected to the upper side of the connecting plate 31, and the lower end of the connecting cylinder 32 is communicated with the communication hole 311 of the connecting plate 31. The abutting column 33 is slidably connected in the connecting cylinder 32 in the vertical direction. The upper end of the first spring 34 is fixedly connected to the upper end of the connecting cylinder 32, and the lower end of the first spring 34 is fixedly connected to the upper end of the abutting column 33 to drive the abutting column 33 to approach the mounting plate 11, that is, to drive the abutting column 33 to slide downward.

[0045] Among them, a connecting groove 312 is formed at the position of the connecting plate 31 corresponding to the communication hole 311. A plugging groove 331 is formed on the circumferential side of the abutting column 33. The plugging block 35 is slidably connected in the connecting groove 312, and the sliding direction is horizontal. One end of the second spring 36 is fixedly connected to the plugging block 35, and the other end is fixedly connected to the bottom wall of the connecting groove 312 to drive the plugging block 35 to extend out of the connecting groove 312, so that the plugging block 35 is plugged into the plugging groove 331 to limit the sliding of the abutting column 33. The pulling rope 37 movably penetrates through the connecting plate 31, and one end of the pulling rope 37 is fixedly connected to one end of the plugging block 35 close to the second spring 36, and the other end is detachably connected to the power output shaft of the driving member 2. The detachable manner may include, but is not limited to, knotting, winding, bundling, etc. at the end of the pulling rope 37, and the present application does not limit it.

[0046] Referring to Figure 1 and Figure 3 , the blanking assembly 4 includes a plurality of suction cups 41, a blower (not shown in the figure), an abutting plate 42, a third spring 43 and a plurality of blanking plates 44. The plurality of suction cups 41 are fixedly connected to the lower side of the mounting seat 1 and are communicated with the blower through a pipeline (not shown in the figure). The abutting plate 42 is horizontally arranged and located above the mounting plate 11. The upper end of the third spring 43 elastically abuts against the lower side of the abutting plate 42, and the lower end elastically abuts against the upper side of the mounting plate 11 to drive the abutting plate 42 to move upward so that the abutting plate 42 approaches the connecting plate 31. It should be noted that the central position of the abutting plate 42, the axis of the third spring 43 and the axis of the abutting column 33 are located on the same straight line. The number of the blanking plates 44 corresponds to the number of the suction cups 41, that is, each suction cup 41 is provided with two blanking plates 44, and the two blanking plates 44 are arranged at intervals along the circumferential direction of the suction cup 41. The upper end of the blanking plate 44 is mounted on the abutting plate 42, and the blanking plate 44 is slidably connected to the mounting plate 11 in the vertical direction.

[0047] When the blower is started to enable each suction cup 41 to adsorb the paper dinner plate, the pulling rope 37 is in a relaxed state. The second spring 36 drives the plugging block 35 to be plugged into the plugging groove 331 to limit the sliding of the abutting column 33, so that there is a distance between the abutting column 33 and the abutting plate 42, and the lower ends of the blanking plates 44 are higher than the lower ends of the suction cups 41 to ensure the normal adsorption of the paper dinner plate.

[0048] When unloading paper dinner plates, the driving member 2 drives the mounting seat 1 to move downward, so that the paper dinner plates move to the unloading position, and the pull rope 37 switches from a relaxed state to a tight state, so as to pull the plug block 35 to compress the second spring 36 and disengage from the plug slot 331, so that the abutment column 33 is driven by the first spring 34 to press against the upper side of the abutment plate 42, so as to drive the abutment plate 42 to move downward and compress the third spring 43, and each unloading plate 44 moves downward following the abutment plate 42, so that each unloading plate 44 moves to the bottom of each suction cup 41, so that each paper dinner plate is separated from each suction cup 41, and the corresponding paper dinner plate can be abutted against the stacked paper dinner plates to ensure the timing of the paper dinner plate being separated from the suction cup 41, thereby improving the unloading effect of the paper dinner plate.

[0049] It should be noted that the driving member 2 drives the mounting plate 11 to move upward, thereby driving the abutment plate 42 and the abutment column 33 to move upward, so that the abutment column 33 abuts against the chamfer 351 of the plug-in block 35, so that the plug-in block 35 automatically slides, and after the abutment column 33 slides a certain distance, the plug-in block 35 is automatically inserted into the plug-in groove 331, and the driving member 2 then drives the mounting plate 11 to move downward for a certain distance, so that the abutment plate 42 is reset to its initial state, so as to facilitate the next material unloading work.

[0050] Reference Figure 3 and Figure 4 In some embodiments, the mounting base 1 further includes a mounting column 13, which is fixedly connected to the upper side of the mounting plate 11. The third spring 43 is placed in the mounting column 13 to complete the installation of the third spring 43 without fixing the third spring 43, thereby facilitating the installation and removal of the third spring 43. The third spring 43 is limited in the mounting column 13, which can avoid the third spring 43 from bending in different directions as much as possible to ensure the stability of the movement of the abutment plate 42. More importantly, when the upper end of the mounting column 13 abuts against the abutment plate 42, it can limit the further movement of the abutment plate 42 to ensure that there is a certain gap between the abutment plate 42 and the mounting base 1, and avoid the connection pipe between the suction cup 41 and the fan from being squeezed as much as possible to ensure the normal operation of the suction cup 41.

[0051] In some embodiments, the upper end of the mounting column 13 is threadedly connected with a mounting sleeve 14, and the mounting sleeve 14 replaces the mounting column 13 to abut the abutment plate 42. The position of the mounting sleeve 14 in the vertical direction can be adjusted by rotating the mounting sleeve 14 to adjust the distance between the abutment plate 42 and the mounting seat 1, thereby adjusting the position of the blanking plate 44, so that the blanking plate 44 can accurately and stably discharge the paper plate.

[0052] In some embodiments, the blanking assembly 4 further includes a contact switch 45 and a controller (not shown in the figure). The contact switch 45 is fixedly connected to the upper end of the mounting sleeve 14, such that the contact switch 45 is located at the upper end of the mounting post 13. The controller is electrically connected to the contact switch 45 and the blower. Specifically, the abutting plate 42 moves downward, such that the abutting plate 42 abuts against the contact switch 45 on the mounting sleeve 14. The contact switch 45 transmits the contact signal to the controller, such that the controller controls the blower to stop working. In this way, the paper dinner plate can be automatically and accurately separated from the suction cup 41, and with the cooperation of each blanking plate 44, the blanking of the paper dinner plate is more convenient and accurate.

[0053] In some embodiments, the connecting seat 3 further includes a guide rod 38. The guide rod 38 is threadedly connected to the lower end of the abutting post 33. The guide rod 38 movably passes through the abutting plate 42, the mounting post 13, and the mounting plate 11, and the third spring 43 is sleeved on the guide rod 38. In practical applications, since the guide rod 38 movably passes through the abutting plate 42, the movement of the abutting plate 42 can be guided to ensure stable movement in the vertical direction. At the same time, since the third spring 43 is sleeved on the guide rod 38, the bending deformation of the third spring 43 can be restricted, the service life of the third spring 43 can be improved, and the force applied by the third spring 43 to the abutting plate 42 is more uniform, further improving the stability of the movement of the abutting plate 42.

[0054] Refer to Figure 3 and Figure 5 In some embodiments, the upper end of the blanking plate 44 is inserted into the abutting plate 42, so that the detachable connection between the blanking plate 44 and the abutting plate 42 can be realized, facilitating the installation and disassembly of the blanking plate 44.

[0055] In some embodiments, the blanking assembly 4 further includes a limit seat 46. The limit seat 46 is located on the upper side of the abutting plate 42 and is clamped in each blanking plate 44. Since the blanking plate 44 inserted into the abutting plate 42 is prone to loosening after long-term use, the limit seat 46 can clamp each blanking plate 44, thereby improving the stability of the detachable connection between the blanking plate 44 and the abutting plate 42, and further improving the stability of the blanking of the paper dinner plate. Among them, one end of the limit seat 46 abuts against the abutting plate 42 to facilitate the positioning and installation of the limit seat 46.

[0056] In some embodiments, the guide rod 38 is inserted into the limit seat 46 to restrict the displacement of the limit seat 46, thereby further ensuring the stability of the detachable connection between the blanking plate 44 and the abutting plate 42, and facilitating the installation and disassembly among the abutting plate 42, each blanking plate 44, and the limit seat 46.

[0057] In some embodiments, an embedding groove 461 is formed on the upper side of the limit seat 46 for the lower end of the abutting column 33 to be embedded. Specifically, the abutting column 33 is embedded in the embedding groove 461 under the drive of the first spring 34, so that the abutting column 33 can drive the abutting plate 42 to move more stably through the limit seat 46, thereby improving the stability of the paper dinner plate blanking.

[0058] The implementation principle of this embodiment is as follows: when the fan is started to enable each suction cup 41 to adsorb the paper dinner plate, the pull rope 37 is in a relaxed state, and the second spring 36 drives the insertion block 35 to be inserted into the insertion groove 331 to limit the sliding of the abutting column 33, so that there is a distance between the abutting column 33 and the abutting plate 42, and the lower ends of the blanking plates 44 are higher than the lower ends of the suction cups 41 to ensure the normal adsorption of the paper dinner plate.

[0059] When blanking the paper dinner plate, the driving member 2 drives the mounting seat 1 to move downward, so that the paper dinner plate moves to the blanking position, and the pull rope 37 is switched from the relaxed state to the taut state, so as to pull the insertion block 35 to compress the second spring 36 and disengage from the insertion groove 331, so that the abutting column 33 is urged by the first spring 34 to abut against the upper side of the abutting plate 42, so as to drive the abutting plate 42 to move downward and compress the third spring 43. Each blanking plate 44 moves downward following the abutting plate 42, so that each blanking plate 44 moves below each suction cup 41, so that each paper dinner plate is separated from each suction cup 41, and the corresponding paper dinner plate can be abutted against the stacked paper dinner plates, so as to ensure the timing of the paper dinner plate separating from the suction cup, thereby improving the blanking effect of the paper dinner plate.

[0060] It should be noted that the driving member 2 drives the mounting plate 11 to move upward, so as to drive the abutting plate 42 and the abutting column 33 to move upward, so that the abutting column 33 abuts against the chamfer 351 of the insertion block 35, so that the insertion block 35 automatically slides, and after the abutting column 33 slides a certain distance, the insertion block 35 automatically inserts into the insertion groove 331. The driving member 2 then drives the mounting plate 11 to move downward a certain distance, so that the abutting plate 42 is reset to the initial state, so as to facilitate the next blanking operation.

[0061] The embodiment of the present application also discloses a paper dinner plate forming machine.

[0062] The paper dinner plate forming machine includes the blanking device described in the above embodiment.

[0063] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A feeding device, characterized in that: The invention comprises a mounting seat (1), a driving member (2), a connecting seat (3) and a blanking assembly (4); the mounting seat (1) is slidably connected to the connecting seat (3) in a vertical direction under the driving of the driving member (2); the connecting seat (3) comprises a connecting plate (31), a connecting tube (32), an abutting column (33), a first spring (34), a plug-in block (35), a second spring (36) and a pull rope (37); the connecting plate (31) is located above the mounting seat (1), the connecting tube (32) is arranged on the connecting plate (31), the abutting column (33) is slidably connected to the connecting tube (32), and the first spring (34) is arranged between the abutting column (33) and the connecting tube (32) to drive the abutting column (33) to abut against the connecting tube (32). near the mounting seat (1); the connecting plate (31) is provided with a connecting groove (312), the abutting column (33) is provided with a plug-in groove (331), the plug-in block (35) is slidably connected to the connecting groove (312), the lower side of the plug-in block (35) close to one end of the plug-in groove (331) is provided with a chamfer (351), the second spring (36) is arranged between the plug-in block (35) and the bottom wall of the connecting groove (312) to drive the plug-in block (35) to be plugged into the plug-in groove (331); the pull rope (37) is movably arranged on the connecting plate (31), and one end of the pull rope (37) is arranged on one end of the plug-in block (35) close to the second spring (36), and the other end is arranged on the driving member (2); The blanking assembly (4) comprises a plurality of suction cups (41), a fan, an abutment plate (42), a third spring (43) and a plurality of blanking plates (44); the plurality of suction cups (41) are arranged on the lower side of the mounting seat (1) and are connected to the fan; the abutment plate (42) is located above the mounting seat (1), and the third spring (43) is arranged between the abutment plate (42) and the mounting seat (1) to drive the abutment plate (42) to approach the connecting plate (31); one end of the plurality of blanking plates (44) is arranged on the abutment plate (42) and is slidably connected to the mounting seat (1) in the vertical direction, and each blanking plate (44) is located on the peripheral side of each suction cup (41); The upper side of the mounting seat (1) is provided with a mounting column (13), and the third spring (43) is placed in the mounting column (13); the connecting seat (3) also includes a guide rod (38), the guide rod (38) is arranged at the lower end of the abutment column (33), the guide rod (38) penetrates the abutment plate (42), the mounting column (13) and the mounting seat (1), and the third spring (43) is sleeved on the guide rod (38); The mounting seat (1) is driven to move downward by the driving member (2), so that the paper dinner plate moves to the unloading position, and the pull rope (37) switches from a relaxed state to a tight state, so as to pull the plug block (35) to compress the second spring (36) and disengage from the plug slot (331), so that the abutment column (33) is pressed against the upper side of the abutment plate (42) under the drive of the first spring (34), so as to drive the abutment plate (42) to move downward and compress the third spring (43), and each unloading plate (44) moves downward following the abutment plate (42), so that each unloading plate (44) moves to the bottom of each suction cup (41), so that each paper dinner plate is disengaged from each suction cup (41).

2. A feeding device according to claim 1, characterized in that: The upper end of the mounting column (13) is threadedly connected with a mounting sleeve (14).

3. A feeding device according to claim 2, characterized in that: The unloading assembly (4) further comprises a contact switch (45) and a controller, wherein the contact switch (45) is fixedly connected to the upper end of the mounting sleeve (14), and the controller is electrically connected to the contact switch (45) and the fan, and the abutment plate (42) moves downward so that the abutment plate (42) abuts against the contact switch (45) on the mounting sleeve (14), and the contact switch (45) transmits a contact signal to the controller so that the controller controls the fan to stop working.

4. A feeding device according to claim 1, characterized in that: The upper end of the blanking plate (44) is inserted into the abutting plate (42).

5. A feeding device according to claim 4, characterized in that: The blanking assembly (4) further comprises a limiting seat (46), wherein the limiting seat (46) is located on the upper side of the abutting plate (42) and is clamped in each of the blanking plates (44).

6. A feeding device according to claim 5, characterized in that: The guide rod (38) is plugged into the limiting seat (46).

7. A feeding device according to claim 6, characterized in that: The upper side of the limiting seat (46) is provided with an embedding groove (461) for embedding the lower end of the abutting column (33).

8. A paper tray forming machine, characterized in that: It comprises a feeding device as described in any one of claims 1 to 7.

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