Mechanism for clamping, dragging and automatically feeding fiber boards into mold

Abstract

The utility model discloses a mechanism for clamping, dragging and automatically feeding fiber boards into a mold, which comprises a transmission mechanism, a hot press and a cold molding press, the gripper mechanism can move back and forth between the outlet of the hot press and the cold molding press through the transmission mechanism; the gripper mechanism is used for gripping fiber boards at an outlet of the hot press and placing the fiber boards into the cold molding press. According to the utility model, not only is the labor intensity of staff reduced, but also the potential safety hazards such as scalding caused by manual operation are effectively avoided, the risk of occupational injury is reduced, and the safety of the working environment is improved; meanwhile, the shutdown waiting time of equipment is shortened, so that the production efficiency is remarkably improved; and meanwhile, the consistency and the stability of each operation can be ensured, the influence of human factors on the product quality is reduced, and the uniformity and the percent of pass of products are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fiberboard processing, in particular to an automatic mold-entering mechanism for clamping and dragging fiberboards. Background Art

[0002] With the development of the automotive industry, lightweighting of automotive interior structures has become an important trend. As an environmentally friendly and high-performance raw material, hemp fiber has been widely used in automotive interior parts. Hemp fiber interior parts have the advantages of heat insulation, sound absorption, toughness and low flame retardancy, which significantly improves the performance and driving experience of the car.

[0003] At present, the main processing technology for hemp fiber interior parts is hot pressing. Usually, the hot press is installed on one side of the cold mold press. The specific process includes heating the hemp fiber raw material to more than 200 degrees in the hot press to soften it and make it plastic. Then, the high-temperature material needs to be quickly transferred to the cold mold press within about 20 seconds for cold mold press molding. However, this process currently relies mainly on manual operation, which can easily cause scalding accidents to personnel during operation; employees need to frequently put their arms into high-temperature environments and cold molds, which is labor-intensive and harmful to the body; at the same time, the speed and accuracy of manual operation are limited, which affects production efficiency and product quality. Therefore, there is an urgent need for an automatic mold entry mechanism for fiberboard clamping and dragging. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an automatic mold-entering mechanism for clamping and dragging fiberboards.

[0005] The utility model discloses an automatic mold-entering mechanism for clamping and dragging fiberboards, comprising:

[0006] A transmission mechanism connecting the hot press outlet with the cold mold press;

[0007] The gripper mechanism can move back and forth between the hot press outlet and the cold mold press through the transmission mechanism; the gripper mechanism is used to grab the fiberboard at the hot press outlet and place it in the cold mold press.

[0008] As a further improvement of the utility model, the transmission mechanism includes a bracket, a guide rail, a belt and a belt tensioner;

[0009] The two brackets are respectively arranged at the front and rear ends of the cold die press along the transmission direction of the transmission mechanism;

[0010] The two guide rails are respectively arranged on the left and right sides of the cold die press in parallel with the transmission direction and fixed on the brackets on the corresponding sides; a pulley is respectively arranged at the two ends of the two brackets corresponding to the two guide rails;

[0011] The two belts are respectively sleeved on the two pulleys on the corresponding sides along the transmission direction, the two pulleys at one end are connected to the servo motor through the transmission shaft, the gripper mechanism is slidably mounted on the two guide rails and connected to the belts on the corresponding sides; the servo motor is electrically connected to the PLC;

[0012] The two belt pulleys away from one end of the transmission shaft are both equipped with the belt tensioning member, which is used to adjust the distance between the two belt pulleys located on the same side.

[0013] As a further improvement of the utility model, the belt tensioner includes an adjusting screw;

[0014] Mounting plates are installed on both sides of the two pulleys away from one end of the transmission shaft, and the two mounting plates are provided with adjustment holes corresponding to the central axes of the pulleys, and the adjustment holes extend along the transmission direction. The central axes on both sides of the pulleys are placed in the corresponding adjustment holes, and the end surfaces of the two mounting plates away from the guide rails are provided with threaded holes connected to the adjustment holes, and two adjusting screws are respectively passed through the corresponding threaded holes and connected to the central axes on the corresponding sides; adjusting the adjusting screws can drive the central axis of the pulley to move back and forth in the adjustment hole along the transmission direction.

[0015] As a further improvement of the present invention, the two brackets are provided with first limiting parts at both ends of the two guide rails; the two brackets are provided with second limiting parts inside the first limiting parts at both ends of one of the guide rails.

[0016] As a further improvement of the utility model, the gripper mechanism comprises a vertical rod, a belt clamping block, a first crossbar and a second crossbar;

[0017] The bottom ends of the two vertical poles are slidably connected to the guide rails on the corresponding sides through sliding members; the two belt clamping blocks are respectively arranged on the sliding members on both sides of the vertical poles along the transmission direction, and clamp the belts on the corresponding sides;

[0018] The first crossbars are respectively installed at the top ends of the two vertical bars, and the first crossbars are arranged parallel to the laying direction of the guide rails; the second crossbar is installed between the two first crossbars near the outlet of the hot press, and the second crossbar is arranged perpendicular to the laying direction of the guide rails;

[0019] A plurality of guide plates and pneumatic clamps are alternately installed at intervals on one side of the second cross bar close to the hot press outlet, and the plurality of pneumatic clamps are electrically connected to the PLC.

[0020] As a further improvement of the utility model, the sliding member includes a fixed plate and at least one linear bearing arranged under the fixed plate, and the fixed plate can be slidably mounted on the guide rail through the linear bearing; the two belt clamping blocks are respectively mounted on the fixed plate; the two belt clamping blocks are respectively used to clamp the belts on the corresponding sides, and the tension of the belts can be adjusted.

[0021] As a further improvement of the utility model, a limit switch cooperating with the second limit part is provided at the bottom of the vertical pole on one side, and the limit switch is electrically connected to the PLC; the limit switch includes a front limit switch, a front over-limit switch, a rear over-limit switch and a rear limit switch arranged in sequence along the transmission direction.

[0022] As a further improvement of the utility model, one end of the belt is clamped in the belt clamping block on one side of the vertical pole, and the other end of the belt is successively sleeved on the front and rear end pulleys and then clamped in the belt clamping block on the other side of the vertical pole; the length of the two ends of the belt clamped in the belt clamping blocks on both sides is adjusted to adjust the tension of the belt.

[0023] As a further improvement of the present invention, the belt clamping block includes a first clamping portion and a second clamping portion arranged at the upper and lower parts, and the upper surface of the second clamping portion is provided with a toothed groove adapted to the toothed protrusions on the inner side of the belt; the two ends of the belt are respectively clamped in the toothed groove by the first clamping portion and the second clamping portion.

[0024] As a further improvement of the utility model, the guide plate includes a first nylon plate and a second nylon plate arranged up and down, and the first nylon plate and the second nylon plate are both inclined at one end close to the hot press, and the first nylon plate and the second nylon plate are spaced apart to form a coarse guide groove for inserting the fiberboard.

[0025] Compared with the prior art, the beneficial effects of the utility model are:

[0026] The utility model replaces the traditional manual material taking method by arranging a transmission mechanism and a gripping mechanism, which not only reduces the labor intensity of employees, but also effectively avoids safety hazards such as burns caused by manual operation, reduces the risk of occupational injuries, and improves the safety of the working environment.

[0027] The utility model can perform material transfer and mold insertion operations at a faster speed and higher precision by arranging a transmission mechanism and a gripper mechanism, thereby reducing the downtime waiting time of the equipment and significantly improving production efficiency; at the same time, it can ensure the consistency and stability of each operation, reduce the influence of human factors on product quality, and help to improve the uniformity and qualified rate of products. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of a clamping and dragging automatic mold-feeding mechanism for fiberboard disclosed in an embodiment of the utility model;

[0029] Figure 2 This is a top view of the structure of a clamping and dragging automatic mold-feeding mechanism for fiberboard disclosed in an embodiment of the utility model;

[0030] Figure 3 This is a structural side view of a clamping and dragging automatic mold-feeding mechanism for fiberboard disclosed in an embodiment of the utility model;

[0031] Figure 4 It is a schematic diagram of the structure of the transmission mechanism for the automatic mold-feeding mechanism for clamping and dragging fiberboards disclosed in one embodiment of the utility model;

[0032] Figure 5 It is a structural schematic diagram of a first limiting part and a second limiting part of a clamping and dragging automatic mold-feeding mechanism for fiberboards disclosed in an embodiment of the utility model;

[0033] Figure 6 It is a structural schematic diagram of the first limiting part and the second limiting part at another angle of the automatic mold-feeding mechanism for clamping and dragging fiberboard disclosed in an embodiment of the utility model;

[0034] Figure 7 This is a structural schematic diagram of a belt tensioning member for a fiberboard-type clamping and dragging automatic mold-feeding mechanism disclosed in an embodiment of the utility model;

[0035] Figure 8 It is a structural side view of a belt tensioning member of a clamping and dragging automatic mold-feeding mechanism for fiberboards disclosed in an embodiment of the utility model;

[0036] Fig. 9 This is a schematic diagram of the structure of a gripper mechanism for a fiberboard-type clamping and dragging automatic mold-feeding mechanism disclosed in an embodiment of the utility model;

[0037] Fig.10 The present invention is a schematic structural diagram of a limit switch for a fiberboard-type clamping and dragging automatic mold-feeding mechanism disclosed in an embodiment of the present invention.

[0038] In the figure:

[0039] 1. Transmission mechanism; 11. Bracket; 12. Guide rail; 13. Belt; 14. Servo motor; 15. Transmission shaft; 16. Pulley; 161. Center shaft; 17. First limiting part; 18. Second limiting part;

[0040] 2. Gripper mechanism; 21. Vertical pole; 22. First crossbar; 23. Second crossbar; 24. Fixed plate; 25. Linear bearing; 26. Belt clamping block; 27. Guide plate; 28. Pneumatic clamping claw;

[0041] 3. Limit switch; 31. Front limit switch; 32. Front over limit switch; 33. Rear over limit switch; 34. Rear limit switch;

[0042] 4. Mounting plate; 41. Adjustment hole; 5. Adjustment screw. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0044] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0045] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] The utility model is further described in detail below in conjunction with the accompanying drawings:

[0047] like Figure 1-3 As shown, according to the utility model, a clamping and dragging automatic mold-entry mechanism for fiberboards includes a transmission mechanism 1 and a gripper mechanism 2, wherein the transmission mechanism 1 connects the hot press outlet with the cold mold press; the gripper mechanism 2 can move back and forth between the hot press outlet and the cold mold press through the transmission mechanism 1; the gripper mechanism 2 is used to grab the fiberboard at the hot press outlet and place it in the cold mold press.

[0048] In this embodiment, by setting up the transmission mechanism 1 and the gripper mechanism 2, the traditional manual material picking method is replaced, which not only reduces the labor intensity of employees, but also effectively avoids safety hazards such as burns caused by manual operation, reduces the risk of occupational injuries, and improves the safety of the working environment; by setting up the transmission mechanism 1 and the gripper mechanism 2, material transfer and mold insertion operations can be performed at a faster speed and higher precision, reducing the downtime waiting time of the equipment, thereby significantly improving production efficiency; at the same time, it can ensure the consistency and stability of each operation, reduce the impact of human factors on product quality, and help improve the uniformity and qualified rate of products.

[0049] Specific:

[0050] like Figure 4-6 As shown, in the above embodiment, preferably, the transmission mechanism 1 includes a bracket 11, a guide rail 12, a belt 13 and a belt tensioner, wherein two brackets 11 are respectively arranged at the front and rear ends of the cold mold press along the transmission direction of the transmission mechanism 1; two guide rails 12 are respectively arranged on the left and right sides of the cold mold press in parallel to the transmission direction and fixed on the brackets 11 on the corresponding sides; two brackets 11 are respectively provided with a pulley 16 at both ends of the two guide rails 12; two belts 13 are respectively sleeved on the two pulleys 16 on the corresponding sides along the transmission direction, wherein the two pulleys 16 at one end are connected to the servo motor 14 through the transmission shaft 15, and the gripper mechanism 2 is slidably mounted on the two guide rails 12 and connected to the belts 13 on the corresponding sides. The two pulleys 16 at one end away from the transmission shaft 15 are both provided with a belt tensioner, which is used to adjust the spacing between the two pulleys 16 on the same side.

[0051] In the above embodiment, preferably, the bracket 11 close to the servo motor 14 and the transmission shaft 15 includes a horizontal rectangular frame beam, which is welded and fixed to one end of the cold mold press close to the hot press; a diagonal bracing beam is also installed between the bottom of the horizontal rectangular frame beam and the side wall of the cold mold press; the transmission shaft 15 is laid on the horizontal rectangular frame beam perpendicular to the transmission direction, and a pulley 16 is respectively connected to both ends of the transmission shaft 15; the servo motor 14 is fixedly installed on the horizontal rectangular frame beam and is connected to the transmission shaft 15 to realize the synchronous rotation of the belts 13 on both sides.

[0052] In the above embodiment, preferably, the bracket 11 on the side away from the servo motor 14 and the transmission shaft 15 includes two sub-brackets, and the two sub-brackets are respectively installed on both sides of one end of the cold mold press away from the hot press. The sub-brackets include a cross beam and a bottom diagonal bracing beam. The cross beam is welded and fixed to the cold mold press, and the two ends of the diagonal bracing beam are respectively welded and fixed to the cross beam and the side wall of the cold mold press.

[0053] In the above embodiment, preferably, the horizontal rectangular frame beam and the two sub-brackets are provided with a first limit portion 17 at both ends of the corresponding two guide rails 12; the horizontal rectangular frame beam and the two sub-brackets are provided with a second limit portion 18 inside the first limit portion 17 at both ends of the corresponding one of the guide rails 12. In this embodiment, the first limit portion is a hard limit, and its main function is to limit the maximum operating position of the gripper mechanism 2, and it can also protect the entire mechanism to prevent accidents such as the mechanical gripper falling or tipping over when the position is exceeded; the second limit portion 17 includes a limit block, and the side of the limit block away from the pulleys 16 on both sides is designed with an inclined surface to cooperate with the limit switch 3 of the gripper mechanism 2.

[0054] like Figure 7-8 As shown, in the above embodiment, preferably, the belt tensioner includes an adjusting screw 5; mounting plates 4 are installed on both sides of the two pulleys 16 away from one end of the transmission shaft 15, and the two mounting plates 4 are provided with adjusting holes 41 corresponding to the central axis 161 of the pulley 16, and the adjusting holes 41 extend along the transmission direction to form an elliptical hole, and the central axes 161 on both sides of the pulley 16 are placed in the corresponding adjusting holes 41, and the end surfaces of the two mounting plates 4 away from the guide rail 12 are provided with threaded holes connected to the adjusting holes 41, and the two adjusting screws 5 are respectively connected to the central axis 161 on the corresponding side after passing through the corresponding threaded holes; adjusting the adjusting screw 5 can drive the central axis 161 of the pulley 16 to move forward and backward in the adjusting hole 41 along the transmission direction, and then drive the pulley 16 to move forward and backward along the transmission direction, so as to adjust the distance between the two pulleys 16 on the same side, so as to meet the requirement of adjusting the tension of the belt 13.

[0055] like Fig. 9As shown, in the above embodiment, preferably, the gripper mechanism 2 includes a vertical rod 21, a first crossbar 22, a second crossbar 23, a belt clamping block 26 and a sliding member; wherein, the bottom ends of the two vertical rods 21 are respectively connected to the guide rail 12 on the corresponding side by sliding members; the two belt clamping blocks 26 are respectively arranged on the sliding members on both sides of the vertical rod 21 along the transmission direction, and clamp the belt on the corresponding side; the top ends of the two vertical rods 21 are respectively installed with a first crossbar 22, and the first crossbar 22 is arranged parallel to the laying direction of the guide rail 12; the second crossbar 23 is installed between the two first crossbars 22 near the outlet of the hot press, and the second crossbar 23 is arranged perpendicular to the laying direction of the guide rail 12; the second crossbar 23 is alternately installed with multiple guide plates 27 and pneumatic clamps 28 at intervals on the side near the outlet of the hot press. In this embodiment, the two vertical rods 21, the two first crossbars 22 and the one second crossbar together constitute a mounting frame of the gripper mechanism 2 with a gantry structure.

[0056] In the above embodiment, preferably, the sliding member includes a fixed plate 24 and at least one linear bearing 25 arranged below the fixed plate 24. In this embodiment, the number of linear bearings 25 installed is at least 2, and they are installed at intervals at the bottom of the fixed plate 24 along the transmission direction. The fixed plate 24 is slidably installed on the guide rail 12 through the two linear bearings 25; two belt clamping blocks 26 are respectively installed on the fixed plate 24; the two belt clamping blocks 26 are respectively used to clamp the belt 13 on the corresponding side, and the tension of the belt 13 can be adjusted. In this embodiment, one end of the belt 13 is clamped in the belt clamping block 26 on one side of the vertical pole 21, and the other end of the belt 13 is clamped in the belt clamping block 26 on the other side of the vertical pole 21 after being successively sleeved on the front and rear end pulleys 16; by adjusting the length of the two ends of the belt 13 clamped in the belt clamping blocks 26 on both sides, the tension of the belt 13 can be adjusted.

[0057] In the above embodiment, preferably, the belt clamping block 26 includes a first clamping portion and a second clamping portion arranged at the upper and lower parts, and the upper surface of the second clamping portion is provided with a toothed groove adapted to the toothed protrusion inside the belt; the two ends of the belt 13 are clamped in the toothed groove by the first clamping portion and the second clamping portion respectively. The belt 13 and the belt clamping blocks 26 on both sides cooperate with the fixing plate 24 to form a transmission circuit.

[0058] In the above embodiment, preferably, the guide plate 27 includes a first nylon plate and a second nylon plate arranged up and down, and the first nylon plate and the second nylon plate are both inclined at one end close to the hot press, and the first nylon plate and the second nylon plate are spaced apart to form a rough guide groove for inserting the fiber sheet. The setting of the guide plate 27 can ensure that the fiber sheet can enter the center position of the pneumatic clamp 28 to ensure the grasping position.

[0059] In the above embodiment, preferably, the pneumatic clamp 28 includes a clamp and a cylinder, and the clamp is opened and closed by the extension and retraction of the cylinder, thereby achieving the grasping and releasing of the fiberboard.

[0060] like Fig.10 As shown, in the above embodiment, preferably, a limit switch 3 cooperating with the second limit portion 18 is installed at the bottom of the vertical pole at the guide rail 12 on the side where the second limit portion 18 is provided through a mounting plate, and the limit switch includes a front limit switch 31, a front over-limit switch 32, a rear over-limit switch 33 and a rear limit switch 34 which are arranged in sequence along the transmission direction.

[0061] In the above embodiment, preferably, a PLC is also included, and the front limit switch 31, the front over-limit switch 32, the rear over-limit switch 33 and the rear limit switch 34 are all electrically connected to the input end of the PLC; the servo motor 14 and the pneumatic clamp 28 are all electrically connected to the output end of the PLC; the function of the front limit switch 31 and the rear limit switch 34 is: when the gripper mechanism 2 moves forward or backward to the position, the front limit switch 31 or the rear limit switch 34 collides with the front or rear second limit portion 18 to press the roller at the bottom of the front limit switch 31 or the rear limit switch 34, at this time, the front limit switch 31 or the rear limit switch 34 triggers a signal and feeds back to the PLC, the function of the front over-limit switch 32 and the rear over-limit switch 33 is: to ensure the movement safety of the gripper mechanism 2, when the front limit switch 31 or the rear limit switch 34 passes, the front over-limit switch 32 or the rear over-limit switch 33 is triggered, and it is fed back to the PLC, at this time the PLC controls the servo motor 14 to stop in time.

[0062] In the above embodiment, preferably, in addition to mechanical limit, the forward and backward positions of the gripper mechanism 2 can also be given position parameters by PLC to achieve the start and stop of the servo motor 14 at any position to facilitate debugging.

[0063] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A clamping and dragging automatic mold-feeding mechanism for fiberboard, characterized in that: include: A transmission mechanism connecting the hot press outlet with the cold mold press; The gripper mechanism can move back and forth between the hot press outlet and the cold mold press through the transmission mechanism; the gripper mechanism is used to grab the fiberboard at the hot press outlet and place it in the cold mold press.

2. The automatic mold-feeding mechanism for gripping and dragging fiberboard according to claim 1 is characterized in that: The transmission mechanism comprises a bracket, a guide rail, a belt and a belt tensioner; The two brackets are respectively arranged at the front and rear ends of the cold die press along the transmission direction of the transmission mechanism; The two guide rails are respectively arranged on the left and right sides of the cold die press in parallel with the transmission direction and fixed on the brackets on the corresponding sides; a pulley is respectively arranged at the two ends of the two brackets corresponding to the two guide rails; The two belts are respectively sleeved on the two pulleys on the corresponding sides along the transmission direction, the two pulleys at one end are connected to the servo motor through the transmission shaft, the gripper mechanism is slidably mounted on the two guide rails and connected to the belts on the corresponding sides; the servo motor is electrically connected to the PLC; The two belt pulleys away from one end of the transmission shaft are both equipped with the belt tensioning member, which is used to adjust the distance between the two belt pulleys located on the same side.

3. The automatic mold-feeding mechanism for gripping and dragging fiberboard according to claim 2 is characterized in that: The belt tensioner includes an adjusting screw; Mounting plates are installed on both sides of the two pulleys away from one end of the transmission shaft, and the two mounting plates are provided with adjustment holes corresponding to the central axes of the pulleys, and the adjustment holes extend along the transmission direction. The central axes on both sides of the pulleys are placed in the corresponding adjustment holes, and the end surfaces of the two mounting plates away from the guide rails are provided with threaded holes connected to the adjustment holes, and two adjusting screws are respectively passed through the corresponding threaded holes and connected to the central axes on the corresponding sides; adjusting the adjusting screws can drive the central axis of the pulley to move back and forth in the adjustment hole along the transmission direction.

4. The automatic mold-feeding mechanism for gripping and dragging fiberboard according to claim 2 is characterized in that: The two brackets are provided with first limiting parts at both ends of the two guide rails; the two brackets are provided with second limiting parts inside the first limiting parts at both ends of one of the guide rails.

5. The automatic mold-feeding mechanism for gripping and dragging fiberboard according to claim 4 is characterized in that: The gripper mechanism comprises a vertical rod, a belt clamping block, a first crossbar and a second crossbar; The bottom ends of the two vertical poles are slidably connected to the guide rails on the corresponding sides through sliding members; the two belt clamping blocks are respectively arranged on the sliding members on both sides of the vertical poles along the transmission direction, and clamp the belts on the corresponding sides; The first crossbars are respectively installed at the top ends of the two vertical bars, and the first crossbars are arranged parallel to the laying direction of the guide rails; the second crossbar is installed between the two first crossbars near the outlet of the hot press, and the second crossbar is arranged perpendicular to the laying direction of the guide rails; A plurality of guide plates and pneumatic clamps are alternately installed at intervals on one side of the second crossbar close to the hot press outlet, and the plurality of pneumatic clamps are electrically connected to the PLC.

6. The automatic mold-entering mechanism for gripping and dragging fiberboard according to claim 5 is characterized in that: The sliding member comprises a fixed plate and at least one linear bearing arranged below the fixed plate, and the fixed plate is slidably mounted on the guide rail through the linear bearing; the two belt clamping blocks are respectively mounted on the fixed plate; The two belt clamping blocks are respectively used to clamp the belts on corresponding sides, and the tension of the belts can be adjusted.

7. The automatic mold-entering mechanism for gripping and dragging fiberboard according to claim 5 is characterized in that: A limit switch cooperating with the second limit part is provided at the bottom of the vertical pole on one side, and the limit switch is electrically connected to the PLC; the limit switch includes a front limit switch, a front over-limit switch, a rear over-limit switch and a rear limit switch arranged in sequence along the transmission direction.

8. The automatic mold-feeding mechanism for gripping and dragging fiberboard according to any one of claims 5 or 6, characterized in that: One end of the belt is clamped in the belt clamping block on one side of the vertical pole, and the other end of the belt is successively sleeved on the front and rear end pulleys and then clamped in the belt clamping block on the other side of the vertical pole; the length of the two ends of the belt clamped in the belt clamping blocks on both sides is adjusted to adjust the tension of the belt.

9. The automatic mold-feeding mechanism for gripping and dragging fiberboard according to claim 8 is characterized in that: The belt clamping block includes a first clamping part and a second clamping part arranged at the upper and lower parts, and the upper surface of the second clamping part is provided with a toothed groove adapted to the toothed protrusion on the inner side of the belt; the two ends of the belt are clamped in the toothed groove by the first clamping part and the second clamping part respectively.

10. The automatic mold-entering mechanism for gripping and dragging fiberboard according to claim 5, characterized in that: The guide plate includes a first nylon plate and a second nylon plate arranged up and down, and the first nylon plate and the second nylon plate are both inclined at one end close to the hot press, and the first nylon plate and the second nylon plate are spaced apart to form a rough guide groove for inserting the fiberboard.

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