Stopping device of hot pressing line

Abstract

The utility model relates to the technical field of hot pressing lines, in particular to a material blocking device of a hot pressing line, which comprises a connecting rod, a connecting flange, a locking piece, a connecting plate, a baffle and a locking mechanism, the connecting rod is provided with a non-circular inserting head, the connecting flange is provided with an inserting hole, the connecting flange is provided with a dovetail sliding block, the connecting plate is provided with a non-circular inserting hole and a dovetail groove, and the baffle is provided with an L-shaped clamping block. A containing groove is formed between the L-shaped clamping block and the baffle, and a clamping groove is formed in the edge of the connecting plate in a concave mode. The dovetail sliding block is arranged in the dovetail groove in a sliding mode, the non-circular inserting head penetrates through the inserting hole in a sliding mode and then is inserted into the non-circular inserting hole, the connecting flange is locked on the connecting rod through the locking piece, the L-shaped clamping block is connected with the clamping groove in a clamping mode, and the locking mechanism locks the baffle on the connecting plate. Assembling is firm, the assembling position precision is high, loosening is avoided, the strength and perpendicularity of the baffle during material blocking are guaranteed, locking pieces such as screws do not need to be adopted for connection of the connecting flange and the connecting plate and connection of the connecting plate and the baffle, and the baffle is convenient to disassemble, assemble and replace.

Description

Technical Field

[0001] The utility model relates to the technical field of hot pressing lines, in particular to a material blocking device for a hot pressing line. Background Art

[0002] During the processing and production of hot pressing parts by a hot pressing line, a material blocking device is required to block and position the hot pressing parts, so as to ensure that the picking and placing manipulator can accurately pick up the hot pressing parts into the mold, and avoid damage to the mold caused by poor picking and placing accuracy. The existing material blocking devices generally lock the baffle on the connecting rod by screws. When the baffle blocks the hot pressing parts, problems such as broken screws or loose screws are likely to occur.

[0003] In the existing patent, the Chinese patent document with the application number 202223467648.9 discloses a discharging blocking and limiting mechanism, including a main body part; a blocking piece; a cavity is arranged in the main body part; a plurality of through holes are arranged on the opposite wall surfaces of the cavity, and a plurality of connecting rods are fixedly installed on one side of the blocking piece. The plurality of connecting rods are respectively inserted and installed in the plurality of through holes arranged oppositely to fixedly install the plurality of blocking pieces on one side of the main body part; jacking assemblies are arranged at both ends of the main body part; the jacking assembly includes an L-shaped plate, a pull cover and a cylinder. One end wall surface of the L-shaped plate is fixedly installed on one side of the step part, the cylinder is fixed on one side of the L-shaped plate, and the pull cover is fixedly installed on the other side of the L-shaped plate opposite to the cylinder. The blocking piece of this patent document is locked on the connecting rod by screws. When the blocking piece blocks the material, problems such as broken screws or loose screws are likely to occur, and it is difficult to ensure the perpendicularity of the blocking piece assembled on the connecting rod. Therefore, the defects are very obvious, and a solution is urgently needed. Summary of the Utility Model

[0004] In order to solve the above technical problems, the purpose of the utility model is to provide a material blocking device for a hot pressing line.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A material blocking device for a hot pressing line, which comprises a connecting rod, a connecting flange, a locking member, a connecting plate, a baffle and a locking mechanism. One end of the connecting rod is provided with a non-circular plug joint. A jack is formed in the middle of the connecting flange. A dovetail slider is arranged on one side of the connecting flange away from the connecting rod. The connecting plate is provided with a non-circular plugging hole that is concavo-convexly adapted to the non-circular plug joint and a dovetail groove that is concavo-convexly adapted to the dovetail slider. An L-shaped clamping block is arranged on one side of the baffle. A receiving groove is formed between the L-shaped clamping block and the baffle. A clamping groove is concavely arranged at the edge of the connecting plate. The dovetail slider is slidably arranged in the dovetail groove. The non-circular plug joint slides through the jack and then inserts into the non-circular plugging hole. The connecting flange is locked on the connecting rod via the locking member. The L-shaped clamping block is clamped with the clamping groove. The connecting plate is located in the receiving groove. The locking mechanism locks the baffle on the connecting plate.

[0007] Further, the locking mechanism comprises a spring, a sliding pull rod member, a pin shaft, a limiting head and a plugging and unplugging pin member. A pin hole, a sliding hole and a mounting hole are sequentially and communicatively arranged in the height direction of the connecting plate from top to bottom. The aperture of the pin hole and the aperture of the mounting hole are both larger than the aperture of the sliding hole. The spring is installed in the mounting hole. The pin shaft is slidably connected to the pin hole. The sliding pull rod member passes through the inner hole of the spring and the sliding hole and then is connected to the inner end of the pin shaft. The limiting head is connected to the outer end of the pin shaft. The two ends of the spring are elastically abutted against the top wall of the mounting hole and the end cap of the sliding pull rod member respectively. A plugging and unplugging through hole is formed in the thickness direction of the connecting plate. The plugging and unplugging through hole penetrates the pin hole. The inner end of the plugging and unplugging pin member is movably inserted into the plugging and unplugging through hole. An unlocking hole and a locking hole communicated with the unlocking hole are arranged at the inner end of the plugging and unplugging pin member. The aperture of the locking hole is smaller than the aperture of the unlocking hole. The baffle is provided with a plugging and unplugging hole for corresponding communication with the plugging and unplugging through hole. When the inner end of the plugging and unplugging pin member is inserted into the plugging and unplugging hole, the pin shaft is inserted into the locking hole, and the limiting head abuts against the upper end face of the connecting plate. When the inner end of the plugging and unplugging pin member is pulled out of the plugging and unplugging hole, the sliding pull rod member passes through the unlocking hole, and the end face of the pin shaft abuts against the side face of the plugging and unplugging pin member.

[0008] Further, pull rings are installed at the outer ends of the plugging and unplugging pin member and the limiting head.

[0009] Further, a receiving hole communicated with the plugging and unplugging through hole is concavely arranged on one side of the connecting plate close to the baffle. The aperture of the receiving hole is larger than the aperture of the plugging and unplugging through hole. A plugging and unplugging head is convexly arranged at the inner end of the plugging and unplugging pin member. The plugging and unplugging head can be received in the receiving hole or inserted into the plugging and unplugging hole.

[0010] Further, the sliding pull rod member is an adjusting bolt. The stud of the adjusting bolt is threadedly connected to one end of the pin shaft. The nut of the adjusting bolt is elastically abutted against one end of the spring.

[0011] Further, scale lines are arranged on the connecting rod. The scale lines are distributed along the axis of the connecting rod.

[0012] Further, positioning guide blocks are convexly arranged on the inner wall of the jack. Positioning guide grooves are concavely arranged on the outer side wall of the connecting rod. The positioning guide grooves are in sliding fit with the positioning guide blocks.

[0013] Further, the locking member is a locking bolt. A threaded hole communicating with the jack is provided on the outer side wall of the connecting flange. The locking bolt is threadedly connected to the threaded hole, and the end face of the stud of the locking bolt abuts against the outer side wall of the connecting rod.

[0014] Further, the number of the card slots is multiple, and the multiple card slots are distributed along the length direction of the connecting plate.

[0015] Further, the non-circular plug connector is a plugging square block, and the non-circular plugging hole is a plugging square hole.

[0016] The beneficial effects of the present utility model are as follows: In practical applications, during assembly, first install the dovetail slider of the connecting flange into the dovetail groove of the connecting plate. When the connecting flange and the connecting plate are installed in place, the jack of the connecting flange corresponds to and communicates with the non-circular plugging hole of the connecting plate. Then, insert the non-circular plug connector of the connecting rod through the jack and into the non-circular plugging hole. Next, lock the connecting flange on the connecting rod through the locking member to achieve the locking and fixing of the connecting rod and the connecting flange. Among them, through the cooperation of the non-circular plug connector and the non-circular plugging hole and the cooperation of the dovetail slider and the dovetail groove, the connecting plate is firmly locked on the connecting flange, and the assembly position accuracy of the connecting plate and the connecting flange is high. Finally, snap the L-shaped clamping block on the baffle plate with the card slot on the connecting plate. At this time, the connecting plate is located in the accommodating groove, the side surface of the connecting plate abuts against the side surface of the baffle plate, and the side surface of the connecting plate serves as the installation reference for the baffle plate, ensuring the perpendicularity of the baffle plate. The locking mechanism then locks the baffle plate on the connecting plate. When it is necessary to replace or disassemble the baffle plate, only need to unlock the baffle plate through the locking mechanism, making the disassembly, assembly and replacement of the baffle plate convenient. The assembly of the present utility model is firm, the assembly position accuracy is high, the structural stability is good, and it will not loosen, ensuring the strength and perpendicularity of the baffle plate when blocking materials, so that the position of the hot pressing part on the hot pressing line can be accurately positioned during work. Moreover, the connection between the connecting flange and the connecting plate and the connection between the connecting plate and the baffle plate do not require locking fasteners such as screws, reducing the usage amount of locking fasteners such as screws. The disassembly, assembly and replacement of the baffle plate are convenient, which is beneficial to the disassembly, assembly or replacement of the baffle plate on the hot pressing line. Description of the Drawings

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model.

[0018] Figure 2 It is an exploded structural schematic diagram of the present utility model.

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the connecting flange of the present utility model.

[0020] Figure 4 It is a three-dimensional structural schematic diagram of the connecting plate of the present utility model.

[0021] Figure 5This is a three-dimensional structural schematic diagram of another perspective of the connecting plate of the present utility model.

[0022] Figure 6 This is a three-dimensional structural schematic diagram of the baffle of the present utility model.

[0023] Figure 7 This is a cross-sectional view of the locking mechanism of the present utility model.

[0024] Figure 8 This is a three-dimensional structural schematic diagram of the plug-in and pull-out pin member of the present utility model.

[0025] Explanation of reference numerals:

[0026] 1. Connecting rod; 2. Connecting flange; 3. Locking member; 4. Connecting plate; 5. Baffle; 6. Locking mechanism; 7. Non-circular plug joint; 8. Insertion hole; 9. Dovetail slider; 10. Non-circular insertion hole; 11. Dovetail groove; 12. L-shaped clamping block; 13. Accommodating groove; 14. Card slot; 15. Spring; 16. Sliding pull rod member; 17. Pin shaft; 18. Limiting head; 19. Plug-in and pull-out pin member; 20. Pin hole; 21. Sliding hole; 22. Mounting hole; 23. Plug-in and pull-through hole; 24. Unlocking hole; 25. Locking hole; 26. Plug-in and pull-out hole; 27. Pulling ring; 28. Accommodating hole; 29. Plug-in and pull-out head; 30. Scale line; 31. Positioning guide block; 32. Positioning guide groove; 33. Screw hole. Detailed implementation manners

[0027] For the convenience of understanding by those skilled in the art, the present utility model will be further described below in conjunction with embodiments and the accompanying drawings. The content mentioned in the implementation manners does not limit the present utility model.

[0028] As Figures 1 to 8 shown, a material blocking device for a hot wire pressing machine provided by the present utility model includes a connecting rod 1, a connecting flange 2, a locking member 3, a connecting plate 4, a baffle 5 and a locking mechanism 6. One end of the connecting rod 1 is provided with a non-circular plug joint 7. A jack 8 is opened in the middle of the connecting flange 2. A dovetail slider 9 is arranged on the side surface of the connecting flange 2 away from the connecting rod 1. The connecting plate 4 is provided with a non-circular insertion hole 10 that is concavo-convexly adapted to the non-circular plug joint 7 and a dovetail groove 11 that is concavo-convexly adapted to the dovetail slider 9. An L-shaped clamping block 12 is arranged on one side surface of the baffle 5. A accommodating groove 13 is formed between the L-shaped clamping block 12 and the baffle 5. A card slot 14 is concavely arranged at the edge of the connecting plate 4; the dovetail slider 9 is slidably arranged in the dovetail groove 11. The non-circular plug joint 7 slides through the jack 8 and then inserts into the non-circular insertion hole 10. The connecting flange 2 is locked on the connecting rod 1 via the locking member 3. The L-shaped clamping block 12 is clamped with the card slot 14. The connecting plate 4 is located in the accommodating groove 13. The locking mechanism 6 locks the baffle 5 on the connecting plate 4; specifically, the dovetail groove 11 is concavely arranged from the upper end surface of the connecting plate 4 downward; the connecting flange 2 is detachably sleeved outside the connecting rod 1.

[0029] In practical applications, during assembly, first install the dovetail slider 9 of the connecting flange 2 into the dovetail groove 11 of the connecting plate 4. When the connecting flange 2 and the connecting plate 4 are installed in place, the jack 8 of the connecting flange 2 corresponds to and communicates with the non-circular plugging hole 10 of the connecting plate 4. Then, insert the non-circular plug 7 of the connecting rod 1 through the jack 8 and into the non-circular plugging hole 10. Next, lock the connecting flange 2 on the connecting rod 1 through the locking member 3 to achieve the locking and fixing of the connecting rod 1 and the connecting flange 2. Among them, through the cooperation of the non-circular plug 7 and the non-circular plugging hole 10 and the cooperation of the dovetail slider 9 and the dovetail groove 11, the connecting plate 4 is firmly locked on the connecting flange 2, and the assembly position accuracy between the connecting plate 4 and the connecting flange 2 is high. Finally, snap the L-shaped block 12 on the baffle 5 with the card slot 14 on the connecting plate 4. At this time, the connecting plate 4 is located in the receiving groove 13, the side surface of the connecting plate 4 is closely attached to the side surface of the baffle 5, and the side surface of the connecting plate 4 serves as the installation reference for the baffle 5, ensuring the perpendicularity, position accuracy and stability of the baffle 5. The locking mechanism 6 then locks the baffle 5 on the connecting plate 4. When it is necessary to replace or disassemble the baffle 5, only need to unlock the baffle 5 through the locking mechanism 6, making the disassembly, assembly and replacement of the baffle 5 convenient. The assembly of the utility model is firm, the assembly position accuracy is high, the structural stability is good, and it will not loosen, ensuring the strength and perpendicularity of the baffle 5 during material baffle. Thus, during work, the position of the hot pressing part on the hot pressing line can be accurately positioned. Moreover, the connection between the connecting flange 2 and the connecting plate 4 and the connection between the connecting plate 4 and the baffle 5 do not require the use of locking fasteners such as screws, reducing the usage amount of locking fasteners such as screws. The disassembly, assembly and replacement of the baffle 5 are convenient, which is conducive to the disassembly, assembly or replacement of the baffle 5 on the hot pressing line.

[0030] In this embodiment, the locking mechanism 6 includes a spring 15, a sliding pull rod member 16, a pin shaft 17, a limit head 18 and a plug-in pin member 19. A pin hole 20, a sliding hole 21 and a mounting hole 22 are sequentially communicated in the height direction of the connecting plate 4 from top to bottom. The aperture of the pin hole 20 and the aperture of the mounting hole 22 are both larger than the aperture of the sliding hole 21. The spring 15 is installed in the mounting hole 22. The pin shaft 17 is slidably connected to the pin hole 20. The sliding pull rod member 16 passes through the inner hole of the spring 15 and the sliding hole 21 and is connected to the inner end of the pin shaft 17. The limit head 18 is connected to the outer end of the pin shaft 17. The two ends of the spring 15 are elastically abutted against the top wall of the mounting hole 22 and the end cap of the sliding pull rod member 16 respectively. A plug-in through hole 23 is formed in the thickness direction of the connecting plate 4, and the plug-in through hole 23 penetrates through the pin hole 20. The inner end of the plug-in pin member 19 is movably inserted into the plug-in through hole 23. An unlocking hole 24 and a locking hole 25 communicated with the unlocking hole 24 are arranged at the inner end of the plug-in pin member 19. The aperture of the locking hole 25 is smaller than the aperture of the unlocking hole 24. The baffle 5 is provided with a plug-in hole 26 corresponding to and communicated with the plug-in through hole 23. When the inner end of the plug-in pin member 19 is inserted into the plug-in hole 26, the pin shaft 17 is inserted into the locking hole 25, and the limit head 18 abuts against the upper end face of the connecting plate 4. When the inner end of the plug-in pin member 19 is pulled out of the plug-in hole 26, the sliding pull rod member 16 passes through the unlocking hole 24, and the end face of the pin shaft 17 abuts against the side face of the plug-in pin member 19.

[0031] After assembly and forming, the L-shaped latch 12 on the baffle 5 is snap-fitted with the card slot 14 on the connecting plate 4. The connecting plate 4 is located in the receiving slot 13, and the side surface of the connecting plate 4 is in close contact with the side surface of the baffle 5. The inner end of the plug-in pin member 19 is inserted into the plug-in hole 26, the pin shaft 17 is inserted into the locking hole 25 of the plug-in pin member 19, the limiting head 18 abuts against the upper end surface of the connecting plate 4, the spring 15 is in an extended state, and the elastic force of the spring 15 acts on the pin shaft 17 via the sliding pull rod member 16, so that the pin shaft 17 can be continuously and stably inserted into the locking hole 25 to lock the baffle 5 on the connecting plate 4. When the baffle 5 needs to be disassembled, only need to apply a pulling force to the limiting head 18 to overcome the elastic force of the spring 15, so that the sliding pull rod member 16, the pin shaft 17 and the limiting head 18 move upward synchronously, the spring 15 is compressed until the pin shaft 17 moves out of the locking hole 25. At this time, apply an outward (away from the baffle 5) pulling force to the plug-in pin member 19, so that the inner end of the plug-in pin member 19 moves out of the plug-in hole 26 of the baffle 5, and the acting forces on the limiting head 18 and the plug-in pin member 19 can be released. At this time, the pin shaft 17 is misaligned with the locking hole 25, the sliding pull rod member 16 penetrates through the unlocking hole 24, under the elastic force of the spring 15, the inner end surface of the pin shaft 17 abuts against the side surface of the plug-in pin member 19, and then apply an upward acting force to the baffle 5, so that the L-shaped latch 12 on the baffle 5 is separated from the card slot 14, and the baffle 5 can be detached from the connecting plate 4. When the baffle 5 needs to be reinstalled, first snap-fit the L-shaped latch 12 of the baffle 5 with the card slot 14, and the plug-in hole 26 is exactly aligned with the inner end of the plug-in pin member 19, and then apply an inward (towards the baffle 5) pushing force to the plug-in pin member 19. During this process, the unlocking hole 24 cooperates with the sliding pull rod member 16 to guide the movement of the plug-in pin member 19 until the inner end of the plug-in pin member 19 is inserted into the plug-in hole 26, and the pin shaft 17 is firmly inserted into the locking hole 25 under the elastic force of the spring 15 to lock the baffle 5 on the connecting plate 4 again. This structural design makes it convenient to disassemble and assemble the baffle 5 without using auxiliary disassembly and assembly tools.

[0032] Specifically, the pin shaft 17 and the limiting head 18 are of an integral structure, making the connection between the pin shaft 17 and the limiting head 18 firm and the structural stability good.

[0033] In this embodiment, pull rings 27 are installed on both the outer end of the plug-in pin member 19 and the limiting head 18. The setting of the pull rings 27 facilitates the operation of the plug-in pin member 19 and the limiting head 18 by the operator.

[0034] In this embodiment, a receiving hole 28 communicating with the insertion and extraction through-hole 23 is recessed on one side surface of the connecting plate 4 close to the baffle 5. The aperture of the receiving hole 28 is larger than that of the insertion and extraction through-hole 23. The inner end of the insertion and extraction pin member 19 is provided with an insertion and extraction head 29, and the insertion and extraction head 29 can be received in the receiving hole 28 or inserted into the insertion and extraction hole 26. When disassembling the baffle 5, the insertion and extraction head 29 moves from the insertion and extraction hole 26 into the receiving hole 28; when locking the baffle 5, the insertion and extraction head 29 moves from the receiving hole 28 to the insertion and extraction hole 26. With this structural design, the structures of the connecting plate 4 and the baffle 5 are compact. After the baffle 5 and the connecting plate 4 are assembled, the two can be closely fitted and assembled together.

[0035] In this embodiment, the sliding pull rod member 16 is an adjusting bolt. The stud of the adjusting bolt slidably penetrates through the sliding hole 21. The stud of the adjusting bolt is threadedly connected to one end of the pin shaft 17, and the nut of the adjusting bolt elastically abuts against one end of the spring 15. With this structural design, it is convenient for the disassembly and assembly of the sliding pull rod member 16 and the pin shaft 17, thus facilitating the disassembly and assembly of the locking mechanism 6. Moreover, by loosening or tightening the adjusting bolt, the elastic force of the spring 15 can be adjusted.

[0036] In this embodiment, a scale line 30 is provided on the connecting rod 1, and the scale line 30 is distributed along the axis of the connecting rod 1. The setting of the scale line 30 is beneficial for the operator to accurately adjust the position where the material blocking device is installed on the hot pressing line.

[0037] In this embodiment, a positioning guide block 31 is convexly provided on the inner wall of the insertion hole 8, and a positioning guide groove 32 is recessed on the outer side wall of the connecting rod 1. The positioning guide groove 32 is in sliding fit with the positioning guide block 31. When assembling the connecting flange 2 and the connecting rod 1, the positioning guide block 31 and the positioning guide groove 32 are in sliding fit, which is convenient for the assembly of the connecting flange 2 and the connecting rod 1, and improves the position accuracy and stability of the assembly of the connecting flange 2 and the connecting rod 1.

[0038] In this embodiment, the locking member 3 is a locking bolt. A threaded hole 33 communicating with the insertion hole 8 is provided on the outer side wall of the connecting flange 2. The locking bolt is threadedly connected to the threaded hole 33, and the end face of the stud of the locking bolt abuts against the outer side wall of the connecting rod 1 to lock the connecting flange 2 on the connecting rod 1. Preferably, the threaded hole 33 penetrates through the positioning guide block 31, and the threaded hole 33 is correspondingly arranged with the positioning guide groove 32.

[0039] In this embodiment, the number of the clamping grooves 14 is multiple, and the multiple clamping grooves 14 are distributed along the length direction of the connecting plate 4. With this structural design, the firmness of the assembly of the baffle 5 and the connecting plate 4 is improved, and it is beneficial to meet the assembly requirements for baffles 5 of different specifications and sizes.

[0040] In this embodiment, the non-circular plug connector 7 is a plugging square block, and the non-circular plugging hole 10 is a plugging square hole.

[0041] All technical features in this embodiment can be freely combined according to actual needs.

[0042] The above embodiments are preferred implementation solutions of the present utility model. In addition, the present utility model can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution is within the protection scope of the present utility model.

Claims

1. A material blocking device for a hot pressing line, characterized in that: The invention comprises a connecting rod (1), a connecting flange (2), a locking piece (3), a connecting plate (4), a baffle (5) and a locking mechanism (6); a non-circular plug connector (7) is arranged at one end of the connecting rod (1); a plug hole (8) is provided in the middle of the connecting flange (2); a dovetail slider (9) is arranged on the side of the connecting flange (2) away from the connecting rod (1); a non-circular plug connector hole (10) which is concavely matched with the non-circular plug connector (7) and a dovetail groove (11) which is concavely matched with the dovetail slider (9); an L-shaped block (11) is arranged on one side of the baffle (5); 12), a receiving groove (13) is formed between the L-shaped block (12) and the baffle (5), and a receiving groove (14) is recessed on the edge of the connecting plate (4); a dovetail slider (9) is slidably arranged in the dovetail groove (11), the non-circular plug connector (7) slides through the plug hole (8) and is inserted into the non-circular plug hole (10), the connecting flange (2) is locked on the connecting rod (1) via a locking member (3), the L-shaped block (12) is engaged with the receiving groove (14), the connecting plate (4) is located in the receiving groove (13), and the locking mechanism (6) locks the baffle (5) on the connecting plate (4).

2. A material blocking device for a hot pressing line according to claim 1, characterized in that: The locking mechanism (6) comprises a spring (15), a sliding rod (16), a pin shaft (17), a limiting head (18) and a plug-in pin (19). The connecting plate (4) is provided with a pin hole (20), a sliding hole (21) and a mounting hole (22) in sequence from top to bottom in height direction. The diameter of the pin hole (20) and the diameter of the mounting hole (22) are both larger than the diameter of the sliding hole (21). The spring (15) is installed in the mounting hole (22). The pin shaft (17) is slidably connected to the pin hole (20). The sliding rod (16) passes through the inner hole of the spring (15) and the sliding hole (21) and is connected to the inner end of the pin shaft (17). The limiting head (18) is connected to the outer end of the pin shaft (17). The two ends of the spring (15) are elastically in conflict with the top wall of the mounting hole (22) and the end cap of the sliding rod (16) respectively. The connecting plate (4) is opened in the thickness direction. A plug-in through hole (23) is provided, the plug-in through hole (23) passes through the pin hole (20), the inner end of the plug-in pin (19) is movably inserted in the plug-in through hole (23), the inner end of the plug-in pin (19) is provided with an unlocking hole (24) and a locking hole (25) connected to the unlocking hole (24), the aperture of the locking hole (25) is smaller than the aperture of the unlocking hole (24), and the baffle (5) is provided with a locking hole (25) for connecting with the plug-in through hole (23). When the inner end of the plug-in pin (19) is inserted into the plug-in hole (26), the pin shaft (17) is inserted into the locking hole (25), and the limit head (18) contacts the upper end surface of the connecting plate (4); when the inner end of the plug-in pin (19) is pulled out of the plug-in hole (26), the sliding pull rod (16) passes through the unlocking hole (24), and the end surface of the pin shaft (17) contacts the side surface of the plug-in pin (19).

3. A material blocking device for a hot pressing line according to claim 2, characterized in that: The outer end of the plug-in pin (19) and the limit head (18) are both provided with a pull ring (27).

4. A material blocking device for a hot pressing line according to claim 2, characterized in that: A receiving hole (28) communicating with the plug-in hole (23) is recessed on a side surface of the connecting plate (4) close to the baffle plate (5); the diameter of the receiving hole (28) is larger than the diameter of the plug-in hole (23); a plug-in head (29) is protruding from the inner end of the plug-in pin (19); the plug-in head (29) can be accommodated in the receiving hole (28) or inserted into the plug-in hole (26).

5. The material blocking device for a hot pressing line according to claim 2, characterized in that: The sliding pull rod (16) is an adjusting bolt, the stud of the adjusting bolt is threadedly connected to one end of the pin (17), and the nut of the adjusting bolt elastically contacts one end of the spring (15).

6. The material blocking device for a hot pressing line according to claim 1, characterized in that: The connecting rod (1) is provided with scale lines (30), and the scale lines (30) are distributed along the axis of the connecting rod (1).

7. The material blocking device for a hot pressing line according to claim 1, characterized in that: A positioning guide block (31) is convexly provided on the inner wall of the insertion hole (8), and a positioning guide groove (32) is concavely provided on the outer wall of the connecting rod (1), and the positioning guide groove (32) is slidably matched with the positioning guide block (31).

8. The material blocking device for a hot pressing line according to claim 1, characterized in that: The locking member (3) is a locking bolt. The outer side wall of the connecting flange (2) is provided with a screw hole (33) connected to the insertion hole (8). The locking bolt is threadedly connected to the screw hole (33). The stud end face of the locking bolt contacts the outer side wall of the connecting rod (1).

9. The material blocking device for a hot pressing line according to claim 1, characterized in that: There are a plurality of card slots (14), and the plurality of card slots (14) are distributed along the length direction of the connecting plate (4).

10. The material blocking device for a hot pressing line according to claim 1, characterized in that: The non-circular plug connector (7) is a plug-in square block, and the non-circular plug hole (10) is a plug-in square hole.

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