An automatic mold opening device

Abstract

The present invention discloses an automatic mold opening device, which includes a conveyor line. The conveyor line carries a mold through the mold inlet station of a frame. A stopper cooperating with the conveyor line is arranged in the mold inlet station. Above the mold inlet station, there are a vertical clamping mechanism and a translational clamping mechanism which cooperate with each other. The vertical clamping mechanism clamps out an inner mold in the blocked mold upwards, and the translational clamping mechanism translates the inner mold to a blank taking station. Above the blank taking station, there is a blank taking mechanism which can take out the blank in the inner mold and translate the blank to the blank unloading station for variable pitch unloading. Below the blank taking station, there is a mold brushing mechanism which can extend into the inner mold opened by the translational clamping mechanism for cleaning. This device can fully automatically complete mold opening, blank taking, unloading and cleaning work, improving the automation level of the production line. The device uses the variable pitch unloading method to unload the blank, further improving the man-machine performance and facilitating the subsequent sorting of the blank.

Description

Technical Field

[0001] The present invention relates to the technical field of rolling forming production line equipment, and particularly relates to an automatic mold opening device. Background Art

[0002] In the process of ceramic production, it is necessary to form the clay into a green body with certain specifications and strength through a forming process. The common forming methods can be mainly divided into two types: the slip casting method and the pressing method. As a kind of the pressing method, the rolling forming method evolved from the spinning forming method. Its principle is to extend and press the plastic clay in the mold through a rotating rolling head, so as to obtain a green body with high density and high mechanical strength. The clay pressing process of the rolling forming method is relatively easy to realize automated production, so it is favored by many manufacturers. However, the subsequent processes such as mold opening, green body taking, cleaning, and unloading after the green body is prepared and formed still rely on manual operation, which greatly weakens the automated advantage of the green body making process and reduces the production efficiency. A new type of automated device is needed to integrate the above processes. Summary of the Invention

[0003] To solve the above problems, the present invention proposes an automatic mold opening device, which includes a conveyor line. The conveyor line carries the mold through the mold inlet station of the frame. A stopper cooperating with the conveyor line is arranged in the mold inlet station. Above the mold inlet station, there are a vertical clamping mechanism and a translation clamping mechanism that cooperate with each other. The vertical clamping mechanism clamps out the inner mold in the blocked mold upward, and the translation clamping mechanism translates the inner mold to the green body taking station. Above the green body taking station, there is a green body taking mechanism, which can take out the green body in the inner mold and translate the green body to the variable pitch unloading at the green body unloading station. Below the green body taking station, there is a mold brushing mechanism, which can extend into the inner mold opened by the translation clamping mechanism for cleaning.

[0004] Further, the vertical clamping mechanism includes a track seat, which is vertically installed between the beam rods of the frame. An elevating motor A is arranged on the top plate of the track seat. The threaded output shaft of the elevating motor A is rotationally connected to the bottom plate of the track seat. The threaded output shaft is threadedly connected to the slider of the carriage. The slider is slidably connected to the track seat. The bottom of the carriage is connected to the cylinder body of a two-way pusher. The two push rods on both sides of the two-way pusher are connected to the clamping jaws.

[0005] Further, the translation clamping mechanism includes a track beam A, which is horizontally arranged between the beam rods of the frame and is located below the vertical clamping mechanism. One end of the track beam A is provided with a translation motor A. The sprocket at the output end of the translation motor A is connected to a sprocket seat A through a drag chain A. The sprocket seat A is installed at the other end of the track beam A. One side of the chain of the drag chain A is connected to an I-shaped frame. The I-shaped frame is slidably connected to the track beam A. The bottom surface of the protruding part on the same side of the I-shaped frame is connected to a pair of opening and closing cylinders. The opening and closing cylinders are connected to the cylinder body of the clamping cylinder. The upper and lower push rods of the clamping cylinder are connected to the clamping plates.

[0006] Furthermore, the blank taking mechanism includes a track beam B, which is horizontally erected between the beams of the frame and is located above the vertical clamping mechanism. A translation motor B is provided at one end of the track beam B. The sprocket at the output end of the translation motor B is connected to the sprocket seat B through a drag chain B. The sprocket seat B is installed at the other end of the track beam B. A chain on one side of the drag chain B is connected to the translation seat. The translation seat is slidably connected to the track beam B, and one side of the translation seat is connected to the swing arm assembly.

[0007] Furthermore, the swing arm assembly includes a vertical rail seat, which is installed on one side of the translation seat. The top plate of the vertical rail seat is provided with a lifting motor B. The threaded output rod of the lifting motor B is rotatably connected to the bottom plate of the vertical rail seat. The threaded output rod is threadedly connected to the slider of the vertical translation plate. The slider is slidably connected to the vertical rail seat. One end of a plurality of swing arms is symmetrically hinged above the vertical translation plate. The arm body of the swing arm is connected to the output end of the variable pitch cylinder. The cylinder body of the variable pitch cylinder is installed below the vertical translation plate. The other end of the swing arm is hinged to the mounting arm. The bottom of the mounting arm is connected to the billet suction tube. The body of the billet suction tube is provided with an anti-deflection sponge, and the anti-deflection sponge cooperates with the opening of the billet.

[0008] Furthermore, the brush mold mechanism includes a lifting cylinder, the cylinder body of the lifting cylinder is vertically installed between the beams of the frame, the output end of the lifting cylinder is upwardly connected to the transmission plate, the top surface of the transmission plate is provided with a plurality of bearing seats, the bearing seats are rotatably connected to a plurality of brush rod bodies, the bottom end of one of the brush rods is connected to the output end of the cleaning motor, the cleaning motor is installed on the bottom surface of the transmission plate, the brush rod body is provided with a pulley, and the brush rods are connected by a belt transmission through a pulley.

[0009] Furthermore, the mold is placed on a carrier plate of the conveyor line, each mold corresponds to a carrier plate, and the blocking arm of the blocker cooperates with the carrier plate to limit the mold just below the vertical clamping mechanism. Fixed cylinders are provided on both sides of the conveyor line, and the pressure plate at the output end of the fixed cylinder can press the outer mold of the mold against the carrier plate.

[0010] Furthermore, an output belt is provided below the unloading station, and the unloading mechanism can unload the blanks onto the belt surface of the output belt with variable distance.

[0011] The beneficial effects of the present invention are as follows:

[0012] The present invention utilizes a vertical clamping mechanism to clamp the inner mold out of the mold, and then translates the inner mold to the blank taking station through a translation clamping mechanism. The blank taking mechanism absorbs the blank in the inner mold and places it on the output belt for unloading. The translation clamping mechanism then pries the inner mold apart, and cooperates with the mold brushing mechanism to clean it, thereby fully automatically completing the mold opening, blank taking, unloading and cleaning work, thereby improving the automation level of the production line. Among them, the swing arm assembly in the blank taking mechanism adopts a variable distance unloading method to unload the blank, and the blank can be placed on the output belt with a small spacing, which further improves the human-machine performance and facilitates the subsequent sorting of the blank. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Schematic diagram of the strabismus structure of the present invention;

[0014] Figure 2 Schematic diagram of the front view structure of the present invention;

[0015] Figure 3 Schematic diagram of the left view structure of the present invention;

[0016] Figure 4 Schematic diagram of the top view structure of the present invention;

[0017] Figure 5 Schematic diagram of the strabismus structure of the vertical clamping mechanism in the present invention;

[0018] Figure 6 Schematic diagram of the strabismus structure of the translation clamping mechanism in the present invention;

[0019] Figure 7 Schematic diagram of the strabismus structure of the blank taking mechanism in the present invention;

[0020] Figure 8 Schematic diagram of the front view structure of the blank taking mechanism in the present invention;

[0021] Figure 9 Schematic diagram of the strabismus structure of the mold brushing mechanism in the present invention.

[0022] Explanation of the reference numerals is as follows: 1, conveyor line; 101, carrier plate; 2, mold; 201, inner mold; 202, blank; 203, outer mold; 3, frame; 4, stopper; 5, track base; 6, lifting motor A; 7, carriage; 8, bi-directional pusher; 9, jaw; 10, track beam A; 11, translation motor A; 12, drag chain A; 13, sprocket seat A; 14, I-shaped frame; 15, opening and closing cylinder; 16, clamping cylinder; 17, clamping plate; 18, track beam B; 19, translation motor B; 20, drag chain B; 21, sprocket seat B; 22, translation seat; 23, vertical track base; 24, lifting motor B; 25, vertical moving plate; 26, swing arm; 27, variable pitch cylinder; 28, mounting arm; 29, blank suction pipe; 30, anti-deviation sponge; 31, lifting cylinder; 32, transmission plate; 3201, bearing seat; 33, brush rod; 3301, pulley; 34, cleaning motor; 35, fixing cylinder; 36, output belt. Detailed implementation manners

[0023] 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.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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.

[0025] The present invention will be further described below in conjunction with the accompanying drawings:

[0026] like Figures 1 to 9 As shown, an automatic mold opening device includes a conveyor line 1, the conveyor line 1 carries a mold 2 through a mold-entering station of a frame 3 (the frame 3 is divided into three stations of mold-entering, blank-taking, and blank-unloading in sequence through vertical rods), the mold 2 is placed on a carrier plate 101 of the conveyor line 1, each mold 2 corresponds to a carrier plate 101, a blocker 4 cooperating with the conveyor line 1 is arranged in the mold-entering station, the blocking arm of the blocker 4 cooperates with the carrier plate 101, and the mold 2 can be limited in the mold-entering station, fixed cylinders 35 are arranged on both sides of the conveyor line 1, and when the pressure plate at the output end of the fixed cylinder 35 descends, the outer mold 203 of the mold 2 can be pressed against the carrier plate 101, and a vertical clamping mechanism (such as Figure 5 As shown in the figure, the vertical clamping mechanism includes a track seat 5, which is vertically installed between the beams of the frame 3. The top plate of the track seat 5 is provided with a lifting motor A6. The threaded output shaft of the lifting motor A6 is rotatably connected to the bottom plate of the track seat 5. The threaded output shaft is threadedly connected to the slider of the slide 7. The slider is slidably connected to the track seat 5. The bottom of the slide 7 is connected to the cylinder body of the two-way pusher 8. The push rods on both sides of the two-way pusher 8 are connected to the clamping claw 9. When the outer mold 203 is supported by the fixed cylinder 35, the lifting motor A6 lowers the slide 7, and the two-way pusher 8 contracts the push rods on both sides to make the clamping claw 9 clamp the neck of the inner mold 201. At this time, the slide 7 is raised, and the inner mold 201 can be drawn out of the outer mold 203.

[0027] In this embodiment, a translation clamping mechanism (such as Figure 6As shown in the figure, the translation and clamping mechanism includes a track beam A10. The track beam A10 is horizontally arranged between the beam rods of the frame 3 and is located below the vertical clamping mechanism. One end of the track beam A10 is provided with a translation motor A11. The sprocket at the output end of the translation motor A11 is connected to a sprocket seat A13 through a drag chain A12. The sprocket seat A13 is installed at the other end of the track beam A10. One side of the chain of the drag chain A12 is connected to an I-shaped frame 14. The I-shaped frame 14 is slidably connected to the track beam A10. Driven by the translation motor A11, the I-shaped frame 14 can slide along the track beam A10 between the mold loading station and the blank taking station. The bottom surface of the protruding part on the same side of the I-shaped frame 14 is slidably connected to the cylinder bodies of a pair of opening and closing cylinders 15. The push rods of the opening and closing cylinders 15 are connected to the ear plates of the protruding part. The cylinder bodies of the opening and closing cylinders 15 are connected to the cylinder bodies of the clamping cylinders 16. The upper and lower push rods of the clamping cylinders 16 are connected to the clamping plates 17. When the vertical clamping mechanism withdraws the inner mold 201, the I-shaped frame 14 is located at the mold loading station. The clamping plates 17 can clamp the inner mold 201 by retracting the clamping cylinders 16 (as shown in Figure 3 the figure, the clamping position of the clamping plates 17 is perpendicular to the clamping claws 9 to avoid interference between the two mechanisms. Before clamping, the two side clamping cylinders 16 need to be retracted by the opening and closing cylinders 15). After the vertical clamping mechanism releases the clamping claws 9 and moves upward, the translation and clamping mechanism can translate the inner mold 201 to the blank taking station.

[0028] In this embodiment, a blank taking mechanism is provided above the blank taking station (as shown in Figures 7 to 8 the figure). The blank taking mechanism includes a pair of track beams B18. The track beams B18 are horizontally arranged between the beam rods of the frame 3 and are located above the vertical clamping mechanism. One end of one of the track beams B18 is provided with a translation motor B19 (both can also be provided). The sprocket at the output end of the translation motor B19 is connected to a sprocket seat B21 through a drag chain B20. The sprocket seat B21 is installed at the other end of this track beam B18. One side of the chain of the drag chain B20 is connected to a translation seat 22. The translation seat 22 is slidably connected to the two track beams B18. Driven by the translation motor B19, the translation seat 22 can slide along the track beam B18 between the blank taking station and the blank unloading station.

[0029] In this embodiment, one side of the translation seat 22 is connected to a swing arm assembly, and the swing arm assembly includes a vertical rail seat 23, and the vertical rail seat 23 is installed on one side of the translation seat 22. The top plate of the vertical rail seat 23 is provided with a lifting motor B24, and the threaded output rod of the lifting motor B24 is rotatably connected to the bottom plate of the vertical rail seat 23. The threaded output rod is threadedly connected to the slider of the vertical movement plate 25, and the slider is slidably connected to the vertical rail seat 23. One end of two pairs of swing arms 26 are symmetrically hinged above the vertical movement plate 25, and the arm body of the swing arm 26 is connected to the output end of the variable pitch cylinder 27. The cylinder body of the variable pitch cylinder 27 is installed below the vertical movement plate 25. The other end of the swing arm 26 is hinged to the mounting arm 28, and the bottom of the mounting arm 28 is connected to the blank suction tube 29. The body of the blank suction tube 29 is provided with an anti-deflection sponge 30, and the anti-deflection sponge 30 cooperates with the opening of the blank body 202. When the inner mold 201 is translated to the blank taking station, the lifting motor B24 lowers the vertical plate 25, and the blank suction tube 29 extends into the opening of the inner mold 201. The suction cup at the bottom of the blank suction tube 29 adsorbs the inner bottom surface of the blank 202, and the anti-skewness sponge 30 blocks the opening of the blank 202. At this time, the opening and closing cylinder 15 pries the inner mold 201 to both sides along the mold line, and the vertical plate 25 moves upward to drive the blank 202 to separate from the inner mold 201. Then the translation motor B19 drives the translation seat 22 to the blank unloading station, and the vertical plate 25 moves downward. The variable pitch cylinder 27 shrinks the output end and pulls the swing arms 26 on both sides to close, thereby adjusting the distance between the two clamped blanks 202. Then the blank 202 is placed on the output belt 36 below the blank unloading station.

[0030] In this embodiment, a mold brushing mechanism (such as Figure 9 As shown), the mold brushing mechanism includes a lifting cylinder 31, the cylinder body of the lifting cylinder 31 is vertically installed between the beams of the frame 3, the output end of the lifting cylinder 31 is connected to the transmission plate 32 upward, the top surface of the transmission plate 32 is provided with two bearing seats 3201, the bearing seats 3201 are rotatably connected to the rod bodies of several brush rods 33, the bottom end of one of the brush rods 33 is connected to the output end of the cleaning motor 34, the cleaning motor 34 is installed on the bottom surface of the transmission plate 32, the rod body of the brush rod 33 is provided with a pulley 3301, and the two brush rods 33 are connected by a belt transmission connected by the pulley 3301. When the inner mold 201 is opened by the opening and closing cylinder 15, the lifting cylinder 31 can push the transmission plate 32, so that the brush rod 33 extends into the inner mold 201 for cleaning.

[0031] The working principle of the present invention is as follows:

[0032] The conveyor line 1 carries the mold 2 and moves to the die-entering station of the frame 3. The blocker 4 pops out the blocking arm limit carrier 101, so that the two molds 2 are located directly below the two vertical clamping mechanisms. The fixed cylinder 35 drives the pressing plate downward to press the outer mold 203 against the carrier 101. The lifting motor A6 drives the slide 7 downward from the middle position to the low position. The two-way pusher 8 contracts the push rods on both sides to make the clamping claws 9 clamp the neck of the inner mold 201. The slide 7 moves up to the middle position to extract the inner mold 201 from the outer mold 203. At this time, the I-frame 14 is located at the die-entering station, and the opening and closing cylinder 15 drives the clamping cylinders 16 on both sides to approach the inner mold 201. The clamping cylinders 16 are contracted to make the clamping plates 17 clamp the inner mold 201. The vertical clamping mechanism releases the clamping claws 9 and then moves up to the high position. The translation motor A11 is started to drive the I-frame 14 to translate the inner mold 201 to the blank removal station. Start the lifting motor B24 to move the vertical plate 25 downward, and the blank suction tube 29 extends into the opening of the inner mold 201 to absorb the blank 202. Then the opening and closing cylinder 15 pries the inner mold 201 to both sides. The vertical plate 25 moves upward to drive the blank 202 to separate from the inner mold 201. The lifting cylinder 31 pushes the transmission plate 32 upward, so that the brush rod 33 extends into the inner mold 201 for cleaning. At the same time, the translation motor B19 drives the translation seat 22 to the blank unloading station, the vertical plate 25 moves downward, and the variable pitch cylinder 27 pulls the swing arms 26 on both sides together, and then the blank 202 is placed on the output belt 36.

[0033] After the blank 202 is placed, the vertical moving plate 25 moves upward and opens the swing arm 26, the translation seat 22 returns to the blank taking station to wait, the brush rod 33 descends after cleaning the inner mold 201, the opening and closing cylinder 15 drives the inner mold 201 to close the mold, and then the I-frame 14 moves to the blank taking station, the slide 7 descends from the high position to the middle position, the clamping claw 9 clamps the neck of the inner mold 201, the splint 17 releases the inner mold 201, the opening and closing cylinder 15 drives the clamping cylinder 16 to move away from the inner mold 201 on both sides, the slide 7 descends to the low position to place the inner mold 201 into the outer mold 203, and then the slide 7 ascends to the middle position to wait, the fixed cylinder 35 lifts the pressure plate to release the outer mold 203, the blocker 4 releases the carrier plate 101, and the mold 2 moves to the next process along the conveyor line 1.

[0034] The present invention can automatically complete the work of mold opening, blank removal, unloading and cleaning, thereby improving the automation level of the production line. The device unloads the blank 202 in a variable-pitch unloading manner, further improving the human-machine performance and facilitating the subsequent arrangement of the blank 202.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. An automatic mold opening device, comprising a conveyor line (1), characterized in that: The conveyor line (1) carries the mold (2) through the mold loading station of the frame (3). The mold (2) is placed on the corresponding carrier plate (101) of the conveyor line (1). The blocking arm of the stopper (4) built in the mold loading station cooperates with the carrier plate (101), and can limit the two molds (2) in the mold loading station directly below the corresponding vertical clamping mechanism. After the carriage (7) in the vertical clamping mechanism descends from the middle position to the low position, the inner mold (201) neck is clamped by the jaw (9), and then ascends to the middle position to extract it. After the I-shaped frame (14) in the horizontal clamping mechanism clamps the inner mold (201) through the clamping plate (17), the vertical clamping mechanism releases the jaw (9) and ascends to the high position. The I-shaped frame (14) translates the inner mold (201) to the blank taking station. Above the blank taking station, there is a blank taking mechanism. One side of the translation seat (22) in the blank taking mechanism is connected to the vertical rail seat (23) in the swing arm assembly. The top plate of the vertical rail seat (23) is provided with a lifting motor B (24). The threaded output rod of the lifting motor B (24) is rotatably connected to the bottom plate of the vertical rail seat (23). The threaded output rod is threadedly connected to the slider of the vertical moving plate (25). The slider is slidably connected to the vertical rail seat (23). One end of a plurality of swing arms (26) is symmetrically hinged above the vertical moving plate (25). The arm body of the swing arm (26) is connected to the output end of the variable distance cylinder (27). The cylinder body of the variable distance cylinder (27) is installed below the vertical moving plate (25). The other end of the swing arm (26) is hinged to the mounting arm (28). The bottom of the mounting arm (28) is connected to the blank suction pipe (29). The body of the blank suction pipe (29) is provided with an anti-deviation sponge (30). The anti-deviation sponge (30) cooperates with the opening of the blank (202). The blank suction pipe (29) can take out the blank (202) in the inner mold (201) and translate the blank (202) to the blank unloading station for variable distance unloading. Below the blank taking station, there is a mold brushing mechanism, which can extend into the inner mold (201) opened by the horizontal clamping mechanism for cleaning.

2. The automatic mold opening device according to claim 1, wherein: The vertical clamping mechanism includes a track seat (5). The track seat (5) is vertically installed between the beam rods of the frame (3). The top plate of the track seat (5) is provided with a lifting motor A (6). The threaded output shaft of the lifting motor A (6) is rotatably connected to the bottom plate of the track seat (5). The threaded output shaft is threadedly connected to the slider of the carriage (7). The slider is slidably connected to the track seat (5). The bottom of the carriage (7) is connected to the cylinder body of the two-way pusher (8). The two push rods on both sides of the two-way pusher (8) are connected to the jaw (9).

3. An automatic mold opening device according to claim 1, characterized in that: The translation clamping mechanism includes a track beam A (10), which is horizontally arranged between the beam rods of the frame (3) and is located below the vertical clamping mechanism. One end of the track beam A (10) is provided with a translation motor A (11). The sprocket at the output end of the translation motor A (11) is connected to a sprocket seat A (13) through a drag chain A (12). The sprocket seat A (13) is installed at the other end of the track beam A (10). One side of the chain of the drag chain A (12) is connected to an I-shaped frame (14). The I-shaped frame (14) is slidably connected to the track beam A (10). The bottom surface of the protruding part on the same side of the I-shaped frame (14) is connected to a pair of opening and closing cylinders (15). The opening and closing cylinders (15) are connected to the cylinder body of the clamping cylinder (16). The push rods on the upper and lower sides of the clamping cylinder (16) are connected to the clamping plates (17).

4. An automatic mold opening device according to claim 1, characterized in that: The blank taking mechanism includes a track beam B (18), which is horizontally arranged between the beam rods of the frame (3) and is located above the vertical clamping mechanism. One end of the track beam B (18) is provided with a translation motor B (19). The sprocket at the output end of the translation motor B (19) is connected to a sprocket seat B (21) through a drag chain B (20). The sprocket seat B (21) is installed at the other end of the track beam B (18). One side of the chain of the drag chain B (20) is connected to a translation seat (22). The translation seat (22) is slidably connected to the track beam B (18).

5. An automatic mold opening device according to claim 1, characterized in that: The mold brushing mechanism includes a lifting cylinder (31). The cylinder body of the lifting cylinder (31) is vertically installed between the beam rods of the frame (3). The output end of the lifting cylinder (31) faces upward and is connected to a transmission plate (32). The top surface of the transmission plate (32) is provided with a number of bearing seats (3201). The rod bodies of a number of brush rods (33) are rotatably connected to the bearing seats (3201). The bottom end of one of the brush rods (33) is connected to the output end of a cleaning motor (34). The cleaning motor (34) is installed on the bottom surface of the transmission plate (32). The rod bodies of the brush rods (33) are provided with pulleys (3301). The brush rods (33) are driven by a belt connected through the pulleys (3301).

6. An automatic mold opening device according to claim 1, characterized in that: Fixed cylinders (35) are provided on both sides of the mold feeding station section of the conveyor line (1). The pressing plate at the output end of the fixed cylinder (35) can press the outer mold (203) of the mold (2) against the carrier plate (101).

7. An automatic mold opening device according to claim 1, characterized in that: An output belt (36) is provided below the blank unloading station. The blank taking mechanism can unload the blank (202) at a variable distance onto the belt surface of the output belt (36).

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