Die changing device of press machine die

Abstract

The invention discloses a press machine die changing device, which belongs to the technical field of die changing equipment, and comprises a press machine body and a power mechanism positioned on the front surface of the press machine body, a die changing trolley is arranged between the press machine body and the power mechanism, and an auxiliary support frame is rotatably mounted on the front surface of the press machine body; an electric telescopic rod is rotationally installed between the bottom of the auxiliary supporting frame and the outer wall of the front face of the press body, a bearing plate is installed on the inner side of the press body, a mold body is installed on the top of the bearing plate, a plurality of pressing plates slidably installed on the top of the bearing plate are arranged on the outer side of the mold body, and hooks are fixedly connected to the front face of the bearing plate. According to the mold changing device, the mold changing trolley is arranged, the multiple mold changing stations are arranged on the top of the mold changing trolley, before mold changing, the standby bearing plate is installed on one mold changing station, the mold body is fixed to the bearing plate through the pressing plate, then machine halt mold changing is conducted, the machine halt duration can be greatly shortened, and the mold changing efficiency is improved.

Description

Technical Field

[0001] The invention relates to a die changing device, in particular to a die changing device for a press die, and belongs to the technical field of die changing equipment. Background Art

[0002] As presses develop towards multi-variety, high-speed, automation and flexibility, how to quickly change molds has become a bottleneck restricting the efficient production of presses. Especially for large-tonnage presses, the replacement and transportation of large mold bases are more difficult, and the mold change downtime is long. The mold base must be moved out of the press using lifting equipment for mold change, which increases the labor intensity of operators, prolongs the mold change downtime, and seriously affects the production efficiency of the press.

[0003] The present invention proposes a new solution to the above problems. Summary of the Invention

[0004] The main purpose of the present invention is to solve the problems of the existing mold changing device having high labor intensity and long mold changing downtime, which seriously affects the production efficiency of the press, and to provide a mold changing device for a press.

[0005] The purpose of the present invention can be achieved by adopting the following technical solutions:

[0006] The top of the mold changing device is provided with a power box and a driving chain plate located inside the power box, one end of the driving chain plate is fixedly connected to the power head, and a hanging plate is rotatably installed on the top of the power head, and a plurality of mold changing stations are provided on the top of the mold changing trolley, and a first roller is rotatably installed on the mold changing station and the auxiliary support frame, and the bottom of the mold changing trolley is provided with a power track installed on the ground.

[0007] Preferably, a plurality of parallel mounting grooves are provided on the inner wall of the bottom of the press body, a pneumatic cylinder is fixedly connected to the inner side of the mounting groove, a lifting frame is fixedly connected to the output end of the pneumatic cylinder, and a second roller is rotatably installed on the inner side of the lifting frame.

[0008] Preferably, the back of the power box is fixedly connected to a first limit frame that slides with the drive chain plate, the middle of the mold changing station is provided with a second limit frame, and the middle of the auxiliary support frame is fixedly connected to a third limit frame.

[0009] Preferably, both sides of the mold changing station are fixedly connected with a first side plate, and both sides of the auxiliary support frame are fixedly connected with a second side plate.

[0010] Preferably, the top of the mold changing station is fixedly connected to an over-limit block located on the front of the carrying plate, and the bottom inner wall of the press body is fixedly connected to an over-limit positioning column located on the back of the carrying plate.

[0011] Preferably, a positioning groove cooperating with the over-limit positioning column is provided on the back of the supporting plate.

[0012] Preferably, a first electric top cylinder close to the power box is fixedly connected to one side of the first limit frame, and a second electric top cylinder close to the press body is fixedly connected to the same side of the third limit frame as the first limit frame.

[0013] Preferably, a hanging groove cooperating with the hook is provided on the top of the hanging plate, and a top plate is fixedly connected to one side of the hanging plate.

[0014] Preferably, a plurality of limiting sliding grooves slidably matched with the pressure plate are provided on the top of the bearing plate, a limiting sliding block is fixedly connected to the bottom of the pressure plate, and a set screw is threadedly connected to the top of the pressure plate.

[0015] Preferably, a frame cooperating with the auxiliary support frame is fixedly connected to the back of the mold changing trolley.

[0016] The beneficial technical effects of the present invention are as follows: according to the mold changing device for a press mold of the present invention, a plurality of mold changing stations are provided on the top of the mold changing trolley through the arrangement of the mold changing trolley and the carrying plate. Before changing the mold, a spare carrying plate is installed on a mold changing station, and the mold body is fixed on the carrying plate using a pressing plate, and then the machine is stopped to change the mold, which can greatly reduce the downtime and improve the mold changing efficiency; through the arrangement of the power mechanism, when changing the mold, the mold changing trolley is moved to align the empty mold changing station with the press body, the power box is started to drive the driving chain plate to drive the power head to pass through the mold changing station and the auxiliary support frame in turn, the hanging plate is put on the hook, and the power box is operated in reverse to pull the carrying plate and the mold body inside the press body out to the mold changing station, and then the mold changing trolley is moved to align the mold changing station with the pre-installed carrying plate and mold body with the press body, and then the power box is started to push the carrying plate and the mold body into the press body, which is convenient and fast, and the mold changing efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1A schematic diagram of the overall structure of a preferred embodiment provided according to the present invention;

[0018] Figure 2 A schematic diagram of the installation of an auxiliary support frame according to a preferred embodiment of the present invention;

[0019] Figure 3 A schematic diagram of the power mechanism structure according to a preferred embodiment of the present invention;

[0020] Figure 4 A schematic structural diagram of a mold changing trolley according to a preferred embodiment of the present invention;

[0021] Figure 5 A schematic structural diagram of a press body according to a preferred embodiment of the present invention;

[0022] Figure 6 A schematic diagram of a carrier plate connection according to a preferred embodiment of the present invention;

[0023] Figure 7 The figure is a schematic structural diagram of an auxiliary support frame according to a preferred embodiment of the present invention.

[0024] Figure: 1. Press body; 2. Power mechanism; 3. Die-changing trolley; 4. Auxiliary support frame; 5. Electric telescopic rod; 6. Loading plate; 7. Die body; 8. Hook; 9. Power box; 10. Drive chain plate; 11. Power head; 12. Hanging plate; 13. Die-changing station; 14. First roller; 15. Pneumatic cylinder; 16. Lifting frame; 17. Second roller; 101. Mounting slot; 901. First limit frame ; 131, second limit frame; 401, third limit frame; 132, first side plate; 402, second side plate; 133, over-limit block; 102, over-limit positioning column; 601, positioning groove; 902, first electric top cylinder; 403, second electric top cylinder; 121, hanging groove; 122, top plate; 18, pressure plate; 602, limit slide; 181, limit slider; 182, set screw; 301, frame. DETAILED DESCRIPTION

[0025] In order to make the technical solution of the present invention more clear and specific to those skilled in the art, the present invention is further described in detail below with reference to embodiments and drawings, but the embodiments of the present invention are not limited thereto.

[0026] like Figure 1-Figure 7As shown, the mold changing device of a press machine provided in this embodiment includes a press body 1 and a power mechanism 2 located on the front of the press body 1, a mold changing trolley 3 is provided between the press body 1 and the power mechanism 2, an auxiliary support frame 4 is rotatably installed on the front of the press body 1, and an electric telescopic rod 5 is rotatably installed between the bottom of the auxiliary support frame 4 and the front outer wall of the press body 1, a carrying plate 6 is installed on the inner side of the press body 1, and a mold body 7 is installed on the top of the carrying plate 6, and a plurality of pressing plates 18 slidably installed on the top of the carrying plate 6 are provided on the outer side of the mold body 7, and a hook 8 is fixedly connected to the front of the carrying plate 6, the power mechanism 2 includes a power box 9 and a driving chain plate 10 located on the inner side of the power box 9, one end of the driving chain plate 10 is fixedly connected to the power head 11, and a hanging plate 12 is rotatably installed on the top of the power head 11, a plurality of mold changing stations 13 are provided on the top of the mold changing trolley 3, and a first roller 14 is rotatably installed on the mold changing station 13 and the auxiliary support frame 4, and a power track installed on the ground is provided at the bottom of the mold changing trolley 3.

[0027] Through the arrangement of the die-changing trolley 3 and the carrier plate 6, a plurality of die-changing stations 13 are arranged on the top of the die-changing trolley 3. Before changing the die, the spare carrier plate 6 is mounted on a die-changing station 13, and the die body 7 is fixed on the carrier plate 6 using the pressing plate 18. Then, when stopping the machine to change the die, the downtime can be greatly reduced and the die-changing efficiency can be improved. Through the arrangement of the power mechanism 2, when changing the die, the die-changing trolley 3 is moved to align the empty die-changing station 13 with the press body 1, and the power box 9 is started to drive the die. The driving chain plate 10 drives the power head 11 to pass through the mold changing station 13 and the auxiliary support frame 4 in sequence, the hanging plate 12 is put on the hook 8, and the power box 9 is operated in reverse to pull the carrying plate 6 and the mold body 7 on the inner side of the press body 1 to the mold changing station 13, and then the mold changing trolley 3 is moved to align the mold changing station 13 with the pre-installed carrying plate 6 and mold body 7 with the press body 1, and then start the power box 9 to push the carrying plate 6 and mold body 7 into the press body 1, which is convenient and fast, and the mold changing efficiency is high.

[0028] In this embodiment, if Figure 1 、 Figure 2 and Figure 5 As shown, the bottom inner wall of the press body 1 is provided with a plurality of parallel mounting grooves 101. A pneumatic cylinder 15 is fixedly connected to the inner side of the mounting groove 101. A lifting frame 16 is fixedly connected to the output end of the pneumatic cylinder 15. A second roller 17 is rotatably mounted on the inner side of the lifting frame 16. Due to the arrangement of the pneumatic cylinder 15, when changing molds, the pneumatic cylinder 15 is activated, causing the second roller 17 to support and raise the carrier plate 6, thereby enabling rolling and facilitating mold changes. When performing die pressing, the second roller 17 is lowered to ensure that the carrier plate 6 is stably supported.

[0029] In this embodiment, if Figure 1 and Figure 3 As shown, the back of the power box 9 is fixedly connected to a first limit frame 901 that slides with the drive chain plate 10, the middle of the mold changing station 13 is provided with a second limit frame 131, the middle of the auxiliary support frame 4 is fixedly connected to a third limit frame 401, both sides of the mold changing station 13 are fixedly connected to the first side plate 132, and both sides of the auxiliary support frame 4 are fixedly connected to the second side plate 402. Through the arrangement of the first limit frame 901, the second limit frame 131 and the third limit frame 401, the three are arranged in a straight line. When the power box 9 drives the drive chain plate 10 to push the power head 11 to move forward, it plays a guiding role. Through the arrangement of the first side plate 132 and the second side plate 402, it plays a guiding role on the load-bearing plate 6 to prevent deviation.

[0030] In this embodiment, if Figure 1 、 Figure 4 、 Figure 5 and Figure 7 As shown, the top of the die-changing station 13 is fixedly connected to an over-limit block 133 located on the front of the carrier plate 6. The bottom inner wall of the press body 1 is fixedly connected to an over-limit positioning post 102 located on the back of the carrier plate 6. The back of the carrier plate 6 is provided with a positioning groove 601 that cooperates with the over-limit positioning post 102. The over-limit block 133 plays a limiting role when the carrier plate 6 is pulled and slid onto the die-changing carriage 3; the over-limit positioning post 102 and the positioning groove 601 are used to limit and position the die loading of the carrier plate 6.

[0031] In this embodiment, if Figure 1 、 Figure 3 and Figure 7 As shown, a first electric jacking cylinder 902 near the power box 9 is fixedly connected to one side of the first limit frame 901, a second electric jacking cylinder 403 near the press body 1 is fixedly connected to the third limit frame 401 on the same side as the first limit frame 901, a hanging groove 121 is provided on the top of the hanging plate 12 to cooperate with the hook 8, and a top plate 122 is fixedly connected to one side of the hanging plate 12. Due to the provision of the hanging groove 121, when unloading the mold, as the power head 11 approaches the carrier plate 6, the hanging plate 12 can automatically be put on the hook 8. Through the provision of the first electric jacking cylinder 902, the second electric jacking cylinder 403 and the top plate 122, the hanging plate 12 and the hook 8 can be automatically separated.

[0032] In this embodiment, if Figure 1 、 Figure 4 and Figure 6As shown, the top of the carrier plate 6 is provided with a plurality of limiting slots 602 that slidably engage with the pressure plate 18. The bottom of the pressure plate 18 is fixedly connected to a limiting slider 181, and the top of the pressure plate 18 is threadedly connected to a set screw 182. The back of the mold-changing trolley 3 is fixedly connected to a bracket 301 that cooperates with the auxiliary support frame 4. The arrangement of the limiting slots 602 and the limiting slider 181 allows the pressure plate 18 to slide, thereby being suitable for securing mold bodies 7 of different sizes. The arrangement of the set screws 182 further secures the fixation. The bracket 301 provides a stable support for the auxiliary support frame 4.

[0033] In this embodiment, if Figure 1-Figure 7 As shown, the working process of a die changing device for a press machine provided in this embodiment is as follows:

[0034] Step 1: Install the spare carrier plate 6 on a mold changing station 13, and fix the mold body 7 on the carrier plate 6 using the pressing plate 18, and then stop the machine to change the mold;

[0035] Step 2: Move the die-changing trolley 3 to align the empty die-changing station 13 with the press body 1, start the power box 9 to drive the drive chain plate 10 to drive the power head 11 to pass through the die-changing station 13 and the auxiliary support frame 4 in sequence, put the hanging plate 12 on the hook 8, and start the pneumatic cylinder 15 to make the second roller 17 support the load-bearing plate 6 to rise;

[0036] Step 3: Run the power box 9 in reverse to pull the supporting plate 6 and the mold body 7 on the inner side of the press body 1 out to the mold changing station 13, start the first electric top cylinder 902 to disengage the hanging plate 12 from the hook 8, and then move the mold changing trolley 3 to align the mold changing station 13 pre-installed with the supporting plate 6 and the mold body 7 with the press body 1, and then start the power box 9 to make the power head 11 push the supporting plate 6 and the mold body 7 into the press body 1, start the second electric top cylinder 403 to disengage the hanging plate 12 from the hook 8, pull back the power head 11, and then start the pneumatic cylinder 15 to lower the supporting plate 6, move the mold changing trolley 3 out of the working surface, and start the electric telescopic rod 5 to retract the auxiliary support frame 4 without affecting normal work.

[0037] The above is only a further embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solutions and concepts of the present invention within the scope disclosed by the present invention, which fall within the scope of protection of the present invention.

Claims

1. A die changing device for a press machine, characterized in that: The invention comprises a press body (1), and a power mechanism (2) located on the front of the press body (1), a mold changing trolley (3) is arranged between the press body (1) and the power mechanism (2), an auxiliary support frame (4) is rotatably mounted on the front of the press body (1), an electric telescopic rod (5) is rotatably mounted between the bottom of the auxiliary support frame (4) and the front outer wall of the press body (1), a bearing plate (6) is mounted on the inner side of the press body (1), a mold body (7) is mounted on the top of the bearing plate (6), and a plurality of sliding bearings (5) are mounted on the outer side of the mold body (7) and are slidably mounted on the bearing plate (6). 6) a pressure plate (18) at the top, a hook (8) is fixedly connected to the front of the carrying plate (6), the power mechanism (2) comprises a power box (9) and a driving chain plate (10) located inside the power box (9), one end of the driving chain plate (10) is fixedly connected to a power head (11), a hanging plate (12) is rotatably installed on the top of the power head (11), a plurality of mold changing stations (13) are arranged on the top of the mold changing station (13) and the auxiliary support frame (4) are rotatably installed with a first roller (14), and a power track installed on the ground is arranged at the bottom of the mold changing trolley (3).

2. A die changing device for a press machine as claimed in claim 1, characterized in that: A plurality of parallelly distributed mounting grooves (101) are provided on the inner wall of the bottom of the press body (1); a pneumatic cylinder (15) is fixedly connected to the inner side of the mounting groove (101); a lifting frame (16) is fixedly connected to the output end of the pneumatic cylinder (15); and a second roller (17) is rotatably mounted on the inner side of the lifting frame (16).

3. A die changing device for a press machine as claimed in claim 1, characterized in that: The back of the power box (9) is fixedly connected to a first limit frame (901) that slidably cooperates with the driving chain plate (10), the middle of the mold changing station (13) is provided with a second limit frame (131), and the middle of the auxiliary support frame (4) is fixedly connected to a third limit frame (401).

4. A die changing device for a press machine as claimed in claim 1, characterized in that: Both sides of the mold changing station (13) are fixedly connected to a first side plate (132), and both sides of the auxiliary support frame (4) are fixedly connected to a second side plate (402).

5. A die changing device for a press machine as claimed in claim 1, characterized in that: The top of the mold changing station (13) is fixedly connected to an over-limit block (133) located on the front of the carrying plate (6), and the bottom inner wall of the press body (1) is fixedly connected to an over-limit positioning column (102) located on the back of the carrying plate (6).

6. A die changing device for a press machine as claimed in claim 5, characterized in that: The back of the bearing plate (6) is provided with a positioning groove (601) which cooperates with the over-limit positioning column (102).

7. A die changing device for a press machine as claimed in claim 3, characterized in that: A first electric top cylinder (902) close to the power box (9) is fixedly connected to one side of the first limit frame (901), and a second electric top cylinder (403) close to the press body (1) is fixedly connected to the third limit frame (401) on the same side as the first limit frame (901).

8. A die changing device for a press machine as claimed in claim 1, characterized in that: The top of the hanging plate (12) is provided with a hanging groove (121) that cooperates with the hook (8), and one side of the hanging plate (12) is fixedly connected to a top plate (122).

9. A die changing device for a press machine as claimed in claim 1, characterized in that: The top of the bearing plate (6) is provided with a plurality of limiting sliding grooves (602) that slidably cooperate with the pressure plate (18); the bottom of the pressure plate (18) is fixedly connected to a limiting sliding block (181); and the top of the pressure plate (18) is threadedly connected to a set screw (182).

10. A die changing device for a press machine as claimed in claim 1, characterized in that: The back of the mold-changing trolley (3) is fixedly connected with a frame (301) that cooperates with the auxiliary support frame (4).

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