Feeding and discharging device of proofing press

Abstract

The invention relates to the technical field of proofing machines, in particular to a proofing machine feeding and discharging device which comprises a proofing machine body and further comprises a material collecting mechanism arranged on one side of the proofing machine body, corrugated paper falling from the proofing machine body is collected through the material collecting mechanism, and a bearing frame is arranged on one side of the proofing machine body. A feeding unit is arranged on the bearing frame, the feeding unit is used for conveying corrugated paper to a designated position, through the arrangement of the feeding unit, the corrugated paper stacked in order can be efficiently conveyed to a preset proper position, and it is ensured that all pieces of corrugated paper can be conveyed to the designated position according to a set sequence. According to the corrugated paper feeding device, the corrugated paper is stably pushed to the proofing press body at a uniform speed, so that the working efficiency of corrugated paper feeding is greatly improved, the feeding process is smoother and more efficient, an operator can accurately place the corrugated paper on the feeding position conveniently, and the overall corrugated paper feeding effect is effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of proofing press, in particular to a feeding and discharging device of proofing press. BACKGROUND

[0002] The proofing press is a kind of special equipment for small batch and high precision sample production, which is widely used in printing, packaging, clothing, leather, advertising, electronics and other industries. Its core function is to quickly process raw materials into samples that meet the requirements according to design drawings or digital files. In the feeding and discharging device of the proofing press, the vacuum chuck technology is commonly used. This technology generates negative pressure to adsorb materials and cooperates with mechanical arms or linear modules to complete the feeding process. However, this vacuum chuck feeding method has some shortcomings in practical application. First, due to the limited adsorption force of the vacuum chuck, material sticking or falling off may occur, especially when handling thick and hard materials. After being adsorbed by the vacuum chuck, such materials often fall off during transportation due to unstable adsorption. This phenomenon not only affects the feeding efficiency, but also makes it difficult to ensure the stability and reliability of the feeding work of the proofing press, causing great trouble to the production process. Therefore, a feeding and discharging device of proofing press is designed. SUMMARY

[0003] The purpose of the present application is to provide a feeding and discharging device of proofing press to solve the problem of material sticking or falling off in the feeding of proofing press mentioned in the background.

[0004] In order to achieve the above purpose, the present application adopts the following technical scheme: A feeding and discharging device of proofing press, comprising a proofing press body, further comprising: A material collecting mechanism is arranged on one side of the proofing press body to collect the fallen corrugated paper at the proofing press body. A load-bearing frame is arranged on one side of the proofing press body. A feeding unit is arranged on the load-bearing frame. The feeding unit is used to transport the corrugated paper to a designated position.

[0005] Preferably, the feeding unit comprises a rack fixed on the load-bearing frame, at least two channels are formed in the rack, and a load carrier is slidably connected to the rack. A rotating shaft is fixed to the load carrier and slidably connected to the channel. A pressing piece is arranged on the load carrier to position the stacked corrugated paper. A straight gear is fixed to the rotating shaft, and a toothed plate is fixed to the rack and meshingly connected to the straight gear. A lead screw is rotatably connected to the rack through a bearing seat. A lead sleeve is threadedly connected to the lead screw. One of the rotating shafts is rotatably connected to the lead sleeve. A drive motor is fixed to the rack. The output shaft of the drive motor is driven by a belt and pulley transmission between the lead screw. A pushing mechanism is arranged on the load carrier to push the corrugated paper onto the proofing press body.

[0006] Preferably, the material collecting mechanism comprises a mounting frame fixed on one side of the proofing machine body, a mounting frame fixed on the mounting frame, a collecting box slidably connected to the mounting frame, a plurality of universal wheels fixed on the collecting box, the bottom surface of the universal wheels being arranged on the same horizontal plane as the bottom surface of the proofing machine body, and a handle b fixed on the collecting box.

[0007] Preferably, the material pressing part comprises a movable plate rotatably connected to the frame through a rotating rod, at least two rotating seats fixed on the material loading frame, a pneumatic cylinder rotatably connected to the rotating seats, at least two grooves formed in the movable plate, and a rod body rotatably connected to the grooves on the output end of the pneumatic cylinder.

[0008] Preferably, the material pushing mechanism comprises a mounting plate fixed on the material loading frame, a servo motor fixed on the mounting plate, a mounting sleeve fixed on one end of the output shaft of the servo motor, a guide rod fixed on the material loading frame through a mounting block, a guide sleeve slidably penetrating the guide rod, a guide rod fixed on the guide sleeve, a movable block slidably penetrating the guide rod, a through slot formed in the material loading frame, a pushing plate slidably connected to the through slot and fixed on the movable block, a bracket rotatably connected to the movable block, a connecting rod slidably penetrating the mounting sleeve, one end of the connecting rod being fixed to the bracket, a spring sleeved on the connecting rod, one end of the spring being fixed to the mounting sleeve, and the other end of the spring being fixed to the bracket.

[0009] Preferably, a guide groove is fixed on the frame, the wire sleeve is slidably connected to the guide groove, and the length of the guide groove is greater than the length of the channel.

[0010] Preferably, a material guide plate is fixed on the material loading frame, and the material guide plate and the material loading frame are arranged in an inclined distribution.

[0011] Preferably, a plurality of load-bearing legs are fixed on the material loading frame, and the length of the load-bearing legs is greater than the distance between the pneumatic cylinder and the material loading frame.

[0012] Preferably, a limiting ring is fixed on one end of the connecting rod, the diameter of the limiting ring is greater than the diameter of the connecting rod, the cross section of the guide rod is arranged in a square shape, and the cross section of the guide rod is arranged in a hexagonal shape.

[0013] Preferably, a side plate is rotatably connected to the collecting box, a handle a is fixed on the side plate, at least two limiting rods are fixed on the side plate, and limiting grooves matched with the limiting rods are formed in the collecting box.

[0014] Compared with the prior art, the present application has the following beneficial effects: The present application can efficiently transmit the neatly stacked corrugated paper to the predetermined suitable position through the arrangement of the feeding unit, ensure that each corrugated paper can be smoothly pushed to the body of the proofing machine according to the predetermined order and at a uniform speed, not only greatly improve the work efficiency of the corrugated paper feeding, but also make the feeding process more smooth and efficient, greatly facilitate the operator to accurately place the corrugated paper on the feeding position, thereby effectively improving the overall effect of the corrugated paper feeding and ensuring the smooth production process and stable improvement of product quality of the corrugated paper proofing production process.

[0015] The present application can flexibly adjust the angle and position of the movable plate according to the specific needs of actual operation through the arrangement of the pressing member, not only simplifies the process of corrugated paper feeding, but also has the function of effectively pressing and positioning the corrugated paper during the lifting of the loading rack, so that the corrugated paper can always maintain a neat state during the entire feeding process, avoiding the problems of inconvenience and low production efficiency caused by misalignment or looseness of the corrugated paper, thereby ensuring the efficiency and stability of the entire corrugated paper feeding link. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0017] Figure 1 is a schematic diagram of the overall structure of the present application; Figure 2 is a schematic diagram of the side view structure of the present application; Figure 3 is a schematic diagram of the structure of the collection box of the present application; Figure 4 is Figure 3 is an enlarged schematic diagram of the structure of area A in the middle; Figure 5 is Figure 3 is an enlarged schematic diagram of the structure of area B in the middle; Figure 6 is a schematic diagram of the structure of the rack of the present application; Figure 7 is a schematic diagram of the overall structure of the pressing member of the present application; Figure 8 is Figure 7 is an enlarged schematic diagram of the structure of area C in the figure; Figure 9 is a schematic diagram of the bottom view structure of the loading rack of the present application; Figure 10 is Figure 9Schematic view of the structure of the middle D region is enlarged; Figure 11 Schematic view of the side structure of the carrier frame of the present application is shown; Figure 12 Schematic view of the structure of the middle D region is enlarged; Figure 11 Schematic view of the structure of the middle D region is enlarged; Figure 13 Schematic view of the structure of the middle D region is enlarged;

[0018] Figure number explanation: 1, the body of the proofing machine; 2, the material receiving mechanism; 3, the bearing frame; 4, the feeding unit; 5, the rack; 6, the passage; 7, the carrier frame; 8, the rotating shaft; 9, the pressing piece; 10, the straight gear; 11, the toothed plate; 12, the screw rod; 13, the screw sleeve; 14, the driving motor; 15, the pulley; 16, the belt; 17, the pushing mechanism; 18, the mounting frame; 19, the mounting frame; 20, the collection box; 21, the universal wheel; 22, the handle b; 23, the movable plate; 24, the rotating seat; 25, the air cylinder; 26, the groove; 27, the mounting plate; 28, the servo motor; 29, the mounting sleeve; 30, the mounting block; 31, the guide rod; 32, the guide sleeve; 33, the guide rod; 34, the movable block; 35, the through slot; 36, the pushing plate; 37, the support; 38, the connecting rod; 39, the spring; 40, the guide slot; 41, the guide plate; 42, the bearing leg; 43, the limiting ring; 44, the side plate; 45, the handle a; 46, the limiting rod; 47, the limiting groove. DETAILED DESCRIPTION

[0019] The present application will be further described in details below with reference to the accompanying drawings.

[0020] The following description is provided so as to enable any person skilled in the art to practice the present application. The preferred embodiments described below are merely exemplary and those skilled in the art can devise other obvious modifications without departing from the spirit and scope of the present application. The principles defined in the following description can be applied to other embodiments, variations, improvements, equivalents and other technical solutions without departing from the spirit and scope of the present application.

[0021] Those skilled in the art should understand that in the disclosure of the present application, the orientation or position indicated by the terms "longitudinal", "transverse", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientation or position shown in the drawings, which are only for the convenience of the simplified description of the present application, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the above terms cannot be understood as a limitation of the present application.

[0022] It can be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as a limitation on the number.

[0023] Embodiment 1: please refer to Figures 1-13 A sample machine feeding and discharging device, comprising a sample machine body 1, further comprising: a material collecting mechanism 2 arranged on one side of the sample machine body 1, the corrugated paper falling from the sample machine body 1 is collected through the material collecting mechanism 2, a load-bearing frame 3 is arranged on one side of the sample machine body 1, a feeding unit 4 is arranged on the load-bearing frame 3, and the feeding unit 4 is used to transmit the corrugated paper to a designated position; It should be noted that the sample machine body 1 is a product, which converts digital information into mechanical action by receiving design files, drives cutting tools, cutting heads or other processing components to accurately process raw materials, so as to realize accurate cutting and sample control of corrugated paper. This is a conventional setting in the art and will not be described in detail here. In this scheme, the corrugated paper stacked in the feeding unit 4 is lifted to a suitable height position, and the stacked corrugated paper is pushed to the sample machine body 1, and the sample machine body 1 processes the corrugated paper. After the sample processing of the corrugated paper is completed, it is sent into the material collecting mechanism 2, and the material collecting mechanism 2 collects the corrugated paper.

[0024] Further, the material collecting mechanism 2 comprises: a mounting frame 18 fixed on one side of the sample machine body 1, and a mounting frame 18 fixed on the mounting frame 18, a collecting box 20 is slidably connected to the mounting frame 19, a plurality of universal wheels 21 are fixed on the collecting box 20, the bottom surface of the universal wheel 21 and the bottom surface of the sample machine body 1 are arranged on the same horizontal plane, a handle b 22 is fixed on the collecting box 20, and the handle b 22 is pulled out when the collecting box 20 needs to be pulled out. Wherein, the collecting box 20 is rotatably connected with a side plate 44, the side plate 44 is fixed with a handle a 45, and at least two limiting rods 46 are fixed on the side plate 44. A limiting groove 47 matched with the limiting rod 46 is formed on the collecting box 20. By adding the side plate 44, the corrugated paper collected in the collecting box 20 can be easily taken out after the limiting of the collecting box 20 is released. When the limiting rod 46 and the limiting groove 47 are in the engaged state, the stability of the side plate 44 and the collecting box 20 can be ensured when they are kept in the vertical state. It should be noted that the top surface of the collecting box 20 and the top surface of the mounting frame 19 are arranged on the same horizontal plane, so that the corrugated paper processed by the sample machine can accurately fall into the collecting box 20. The collecting box 20 is arranged to slide in the mounting frame 19, so that the collecting box 20 can be stably pulled out and moved; It also needs to be explained that through the configuration of the material collecting mechanism 2, not only greatly facilitates the efficient and orderly collection of the finished sample paper by the staff, but also significantly improves the operation experience of the staff in the subsequent link of the corrugated paper stored in the collection box 20. In addition, the material collecting mechanism 2 ingeniously combines the innovative mechanism that the collection box 20 can slide flexibly in the mounting frame 19, making the entire corrugated paper collection process more time-saving and labor-saving, effectively improving the work efficiency and optimizing the work process, bringing great operation convenience to the staff. In this scheme, the principle of using the material collecting mechanism 2 to collect the finished sample paper is that the sample machine body 1 samples the corrugated paper, and the finished sample paper falls into the collection box 20. After the collection of the corrugated paper is completed, the corrugated paper in the collection box 20 needs to be collected. Pull out the handle b22 until the collection box 20 moves out of the mounting frame 18. Pull the handle a45 to flip the side plate 44 to facilitate the taking of the corrugated paper stored in the collection box 20.

[0025] Further, the feeding unit 4 includes: a rack 5 fixed on the bearing frame 3, at least two channels 6 are formed on the rack 5, and a load carrier 7 is slidably connected to the rack 5. The load carrier 7 is fixed with a rotating shaft 8 slidably connected to the channel 6. The rotating shaft 8 is fixed with a straight gear 10, and the rack 5 is fixed with a toothed plate 11 meshingly connected with the straight gear 10. The rack 5 is rotatably connected with a bearing seat. A lead screw 12 is threadedly connected with a lead sleeve 13. One of the rotating shafts 8 is rotatably connected with the lead sleeve 13. The rack 5 is fixed with a drive motor 14. The output shaft of the drive motor 14 is driven by a belt 16 through a belt pulley 15. The load carrier 7 is fixed with a guide plate 41. The guide plate 41 and the load carrier 7 are arranged in an inclined manner. The addition of the guide plate 41 plays a guiding role when the corrugated paper in the load carrier 7 is discharged. Wherein, the rack 5 is fixed with a guide groove 40, the lead sleeve 13 is slidably connected with the guide groove 40, the length of the guide groove 40 is greater than the length of the channel 6, through the addition of the guide groove 40, the guide groove 40 plays a guiding role for the lead sleeve 13, ensures the relative stability of the lead sleeve 13, and avoids the situation that the lead sleeve 13 moves unsmoothly. It should be noted that through the setting of the feeding unit 4, the corrugated paper stacked in an orderly manner can be accurately and efficiently transmitted to the predetermined appropriate position, ensuring that each corrugated paper can be smoothly and stably pushed to the sample machine body 1 at a uniform speed according to the predetermined order. This process not only greatly improves the work efficiency of the corrugated paper feeding, making the entire feeding process more smooth and efficient, but also greatly facilitates the operator to place the corrugated paper accurately on the feeding position, thereby effectively improving the overall effect of the corrugated paper feeding and ensuring the smooth progress of the corrugated paper sampling production process and the stable improvement of product quality. In the scheme, the corrugated paper is lifted to the designated feeding position by the feeding unit 4. First, the corrugated paper is neatly stacked in the carrier frame 7. By driving the motor 14, the belt wheel 15 and the belt 16 are driven, so that the lead screw 12 rotates synchronously. By the threaded transmission between the lead screw 12 and the sleeve 13, the carrier frame 7 is lifted. By the meshing transmission between the spur gear 10 and the toothed plate 11, the carrier frame 7 is rotated by ninety degrees. Then the corrugated paper is pushed to the body 1 of the proofing machine by the pushing mechanism 17.

[0026] Further, the carrier frame 7 is provided with a pressing member 9 for positioning the stacked corrugated paper. The pressing member 9 comprises: an activity plate 23 rotatably connected to the rack 5 by a rotating rod; at least two rotating seats 24 fixed on the carrier frame 7; a cylinder 25 rotatably connected to the rotating seat 24; and at least two grooves 26 formed in the activity plate 23, and the output end of the cylinder 25 is rotatably connected to the grooves 26 by a rod body. The carrier frame 7 is fixed with a plurality of load-bearing legs 42, and the length of the load-bearing leg 42 is greater than the distance between the cylinder 25 and the carrier frame 7. When the carrier frame 7 needs to be fed, the load-bearing leg 42 is in contact with the load-bearing frame 3. It should be noted that by configuring the pressing member 9, the angle and position of the activity plate 23 can be flexibly adjusted according to the specific needs of actual operation. This not only greatly simplifies the process of feeding the corrugated paper, but also enables the operator to easily place the corrugated paper on the carrier frame 7. Moreover, it also has the function of effectively pressing and accurately positioning the corrugated paper during the lifting of the carrier frame 7. In this way, the corrugated paper can always maintain a neat state during the entire feeding process, avoiding the problems of inconvenience and low production efficiency caused by misalignment or looseness of the corrugated paper, thereby ensuring the efficiency and stability of the entire corrugated paper feeding process.

[0027] In the scheme, the corrugated paper feeding and discharging process is as follows: First, the corrugated paper is neatly stacked on the carrier frame 7. The angle and position of the activity plate 23 are adjusted by the pressing member 9 until the activity plate 23 is in contact with the corrugated paper. Second, the carrier frame 7 is lifted to the feeding position by the feeding unit 4. The carrier frame 7 rotates ninety degrees while being lifted, and the adjustment of the carrier frame 7 is completed. Third, the corrugated paper neatly stacked on the carrier frame 7 is uniformly pushed to the body 1 of the proofing machine by the pushing mechanism 17. The corrugated paper is processed by the body 1 of the proofing machine. The fourth step is that the corrugated paper after the sample processing is dropped into the collecting box 20, and the corrugated paper is stored and collected by the collecting box 20. The corrugated paper can be collected by pulling out the collecting box 20.

[0028] Embodiment 2: please refer to Figure 7 Figure 12 The embodiment is further illustrated based on the first embodiment, and the difference lies in a way of pushing the corrugated paper.

[0029] Further, the loading rack 7 is provided with a pushing mechanism 17 for pushing the corrugated paper to the sample machine body 1. The pushing mechanism 17 comprises: a mounting plate 27 fixed on the loading rack 7, a servo motor 28 fixed on the mounting plate 27, an installation sleeve 29 fixed on one end of the output shaft of the servo motor 28, a guide rod 31 fixed on the loading rack 7 through a mounting block 30, a guide sleeve 32 slidingly penetrating the guide rod 31, a guide rod 33 fixed on the guide sleeve 32, a movable block 34 slidingly penetrating the guide rod 33, a through slot 35 formed in the loading rack 7, a pushing plate 36 slidingly connected in the through slot 35 and fixed on the movable block 34, a bracket 37 rotatably connected to the movable block 34, a connecting rod 38 slidingly penetrating the installation sleeve 29, one end of the connecting rod 38 being fixed with the bracket 37, a spring 39 sleeved on the connecting rod 38, one end of the spring 39 being fixed with the installation sleeve 29, and the other end of the spring 39 being fixed with the bracket 37. The connecting rod 38 has a limiting ring 43 fixed on one end, the diameter of the limiting ring 43 is greater than the diameter of the connecting rod 38, the guide rod 33 has a square cross section, and the guide rod 31 has a hexagonal cross section. The limiting ring 43 limits the movement distance of the connecting rod 38, prevents the connecting rod 38 from being separated from the installation sleeve 29, and ensures that the movable block 34 and the guide sleeve 32 remain stable during movement by the shape of the guide rod 33 and the guide rod 31. It should be noted that the pushing mechanism 17 can accurately push the corrugated paper to the sample machine body 1 at a uniform speed and stable force, thereby significantly improving the work efficiency of the corrugated paper feeding. The feeding process is smooth and efficient, and the multiple feeding of the corrugated paper can be effectively avoided, ensuring that the corrugated paper is accurately pushed each time. The design of the pushing mechanism 17 has strong practicality, significantly improves the production efficiency and product quality, and greatly improves the accuracy and reliability of the operation. ​In the scheme, the corrugated paper pushing principle using pushing mechanism 17: through the drive of servo motor 28, make the installation sleeve 29 synchronous rotation, thus driving the connecting rod 38 synchronous rotation, make the support 37 synchronous rotation, using the hinge effect of support 37 and movable block 34, and cooperate with the elasticity of spring 39, can drive the push plate 36 in the through slot 35 translation movement, by push plate 36 will be corrugated paper to the proofing press body 1, complete the push of corrugated paper, using the elastic effect of spring 39, make movable block 34 along the guide rod 33 on the move, make push plate 36 and through slot 35 in separation, so as to realize the purpose of reciprocating to corrugated paper feeding.

[0030] Those skilled in the art will understand that the embodiments of the application shown in the above description and drawings are only as an example and do not limit the application. The purpose of the application has been fully and effectively achieved. The function and structural principle of the application have been shown and explained in the embodiments, and the embodiments of the application can have any modification or modification without departing from the principle.

Claims

1. A proofing machine loading and unloading device, comprising a proofing machine body (1); It is characterized in that Also includes: A material receiving mechanism (2) is provided on one side of the proofing machine body (1), and corrugated paper dropped from the proofing machine body (1) is collected by the material receiving mechanism (2). A load-bearing frame (3) is provided on one side of the proofing machine body (1), and a feeding unit (4) is provided on the load-bearing frame (3). The feeding unit (4) is used to transport the corrugated paper to a designated position.

2. A proofing machine loading and unloading device according to claim 1, characterized in that: The feeding unit (4) comprises: a frame (5) fixed on a load-bearing frame (3), at least two channels (6) are provided on the frame (5), a loading frame (7) is slidably connected to the frame (5), a rotating shaft (8) slidably connected to the channel (6) is fixed on the loading frame (7), a pressing piece (9) is provided on the loading frame (7), the pressing piece (9) is used to position the stacked corrugated paper, a spur gear (10) is fixed on the rotating shaft (8), and a toothed plate (11) meshingly connected to the spur gear (10) is fixed on the frame (5). ), a screw rod (12) is rotatably connected to the frame (5) through a bearing seat, a threaded sleeve (13) is threadedly connected to the screw rod (12), one of the rotating shafts (8) is rotatably connected to the threaded sleeve (13), a driving motor (14) is fixed to the frame (5), an output shaft of the driving motor (14) and the screw rod (12) are driven by a pulley (15) and a belt (16), a pushing mechanism (17) is provided on the loading frame (7), and the pushing mechanism (17) is used to push the corrugated paper onto the proofing machine body (1).

3. The loading and unloading device of a proofing machine according to claim 1, characterized in that: The material receiving mechanism (2) comprises: a mounting frame (18) fixed to one side of the proofing machine body (1), and a mounting frame (19) fixed to the mounting frame (18), a collection box (20) slidably connected to the mounting frame (19), a plurality of universal wheels (21) fixed to the collection box (20), the bottom surface of the universal wheel (21) and the bottom surface of the proofing machine body (1) being located on the same horizontal plane, and a handle b (22) fixed to the collection box (20).

4. The loading and unloading device of a proofing machine according to claim 2, characterized in that: The pressing member (9) comprises: a movable plate (23) rotatably connected to the frame (5) via a rotating rod, at least two rotating seats (24) are fixed to the material carrier (7), a cylinder (25) is rotatably connected to the rotating seat (24), at least two grooves (26) are provided on the movable plate (23), and the output end of the cylinder (25) is rotatably connected to the groove (26) via a rod body.

5. The loading and unloading device of a proofing machine according to claim 2, characterized in that: The pushing mechanism (17) comprises: a mounting plate (27) fixed on the material carrier (7), a servo motor (28) fixed on the mounting plate (27), a mounting sleeve (29) fixed on one end of the output shaft of the servo motor (28), a guide rod (31) fixed on the material carrier (7) through a mounting block (30), a guide sleeve (32) slidingly passing through the guide rod (31), a guide rod (33) fixed on the guide sleeve (32), a movable block (34) slidingly passing through the guide rod (33), and the material carrier. (7) is provided with a through slot (35), a push plate (36) is fixed on the movable block (34) and is slidably connected in the through slot (35), a bracket (37) is rotatably connected to the movable block (34), a connecting rod (38) is slidably passed through the mounting sleeve (29), one end of the connecting rod (38) is fixed to the bracket (37), a spring (39) is sleeved on the connecting rod (38), one end of the spring (39) is fixed to the mounting sleeve (29), and the other end of the spring (39) is fixed to the bracket (37).

6. A proofing machine loading and unloading device according to claim 2, characterized in that: A guide groove (40) is fixed on the frame (5), the wire sleeve (13) is slidably connected to the guide groove (40), and the length of the guide groove (40) is greater than the length of the channel (6).

7. The loading and unloading device of a proofing machine according to claim 2, characterized in that: A material guide plate (41) is fixed on the material carrier (7), and the material guide plate (41) and the material carrier (7) are arranged in an inclined distribution.

8. The loading and unloading device of a proofing machine according to claim 4, characterized in that: A plurality of load-bearing legs (42) are fixed on the material carrier (7), and the length of the load-bearing legs (42) is greater than the distance between the cylinder (25) and the material carrier (7).

9. The loading and unloading device of a proofing machine according to claim 5, characterized in that: A limiting ring (43) is fixed to one end of the connecting rod (38), the diameter of the limiting ring (43) is larger than the diameter of the connecting rod (38), the cross section of the guide rod (33) is square, and the cross section of the guide rod (31) is hexagonal.

10. The loading and unloading device of a proofing machine according to claim 3, characterized in that: The collecting box (20) is rotatably connected to a side plate (44), a handle a (45) is fixed to the side plate (44), and at least two limiting rods (46) are fixed to the side plate (44), and a limiting groove (47) adapted to the limiting rod (46) is provided on the collecting box (20).

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