Tripping mechanism used for quickly replacing die and used for cold roll forming machine

Abstract

The invention belongs to the technical field of cold-bending forming machines, particularly relates to a tripping mechanism for quickly replacing a mold, and solves the problems of low automation degree, no protection mechanism and small application range in the prior art, the tripping mechanism comprises a rotating sleeve and a base, and one side of the rotating sleeve is provided with a motor; the output end of the motor is connected with a cross rod which is coaxially arranged through a coupler, through the arrangement of a driving screw, a sliding block and other structures, the motor is started, the motor drives the cross rod to rotate, a base is driven to move downwards through a supporting rod, a placing block and the like, and when the sliding block moves downwards, a first clamping rod is driven to rotate through a first steel rope; and the top of the first clamping rod moves out of a groove in the base, the motor is reversely started, the base is driven to ascend through the supporting rod, the placing block and the like, the mold can be replaced, the automation degree is high, convenience and rapidness are achieved, and the effect of higher automation degree is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of cold roll forming machines, in particular to a release mechanism for quickly replacing molds used in cold roll forming machines. Background Art

[0002] At present, the cold roll forming machine is a machine that continuously bends metal strips such as coils and strips horizontally through sequentially configured multi-pass forming rollers to form a plastic processing technology of specific cross-section profiles. The principle of average force in each pass is that the rollers of the entire line are evenly stressed, the wear is balanced, and the service life of the rolls is extended. The material used for the rolls is to utilize its wear resistance, but the specific strength and hardness are contradictory. The red hardness should be utilized during heat treatment. After quenching, it takes two or even three temperings to reach the hardness. The arc part of the track is the core part of the slide rail. The arc part after the first few press forming is in the latter When rolling and folding the vertical edge for the first time, the formed arc should be effectively restrained and protected by the upper and lower rollers or cross wheels. Otherwise, the arc position of the material will definitely change during the stretching process, R will become smaller and become a triangle, the steel ball will not reach the bottom, and the two-point contact will produce noise. When R becomes larger, the matching rail will shake, the track of the slide rail will be blurred when used, the force will be uneven, the slide rail will deform, the life will be shortened, and the rolling stability will be problematic. In production, the problem of material swinging left and right in the raceway is often encountered. In fact, a single set of rollers is asymmetrical, the left side is subjected to greater force, and the material swings to the right; the right side is subjected to greater force, and the material swings to the left.

[0003] The prior art has a release mechanism with the authorization announcement number of CN214254324U, including a flap, a flap hinged with a guide bracket, a moving contact connected to the flap in a transmission connection, and a flap connected to a release member in a transmission connection; the surge protector includes at least one release mechanism, and also includes a lightning protection element, a current transformer and a microcontroller unit, and the release mechanism is connected in series to the line where the lightning protection element is located. The release mechanism of the utility model has a simple and reliable structure and fast response, which significantly improves the sensitivity, reliability and stability of the closing and tripping actions, and can be closed and tripped repeatedly, improving the use efficiency, and also has a manual tripping function, while meeting the requirements of not tripping when a lightning current or surge current impact occurs, and quickly and accurately tripping when a power frequency current, a short-circuit current or an overload current occurs, improving the reliability, safety and service life of the surge protector, and ensuring the safety of the low-voltage distribution line. However, the multiple structures used in the utility model need to be manually operated when they are tripped, which is very troublesome when operated by a single person, and the degree of automation is too low, and the use efficiency is low. Summary of the invention

[0004] The purpose of the present invention is to provide a release mechanism for quickly changing molds used in a cold roll forming machine, which solves the problems of low automation, no protection mechanism and small application range.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a quick-change mold using a release mechanism for a cold roll forming machine comprises a rotating sleeve and a base, a motor is installed on one side of the rotating sleeve, an output end of the motor is connected to a coaxially arranged cross bar through a coupling, two symmetrically arranged active bevel gears are fixedly connected to the cross bar through screws, the top of the rotating sleeve is fixedly connected to a housing through screws, two symmetrically arranged active screws are installed in the rotating sleeve and the housing for common rotation, and the bottom of the active screw is fixedly connected to a driven bevel gear through screws;

[0006] The interior of the shell is fixedly connected with two symmetrically arranged second sliding sleeves by screws, the interior of the second sliding sleeve is slidably assembled with a sliding block, the active screw is threadedly installed in the interior of the sliding block, the top of the sliding block is fixedly connected with two symmetrically arranged support rods by screws, and the tops of the two support rods are jointly fixedly connected with a placement block by screws, and two symmetrically arranged rotating shafts and guide wheels are rotatably installed in the interior of the shell, the rotating shaft is fixedly connected with a first clamping rod by screws, one side of the sliding block is fixedly connected with a first steel rope, the other end of the first steel rope passes around the guide wheel and is fixedly connected to the first clamping rod, a transverse spring is welded on the first clamping rod, and the other end of the transverse spring is welded to the second sliding sleeve, and the top of the base is fixedly connected with a lower mold assembly by screws.

[0007] Preferably, the interior of the shell is fixedly connected with two symmetrically arranged first sliding sleeves by screws, the interior of the first sliding sleeve is slidably equipped with a safety rod, one side of the first sliding sleeve is fixedly connected with a third sliding sleeve by screws, the interior of the third sliding sleeve is slidably equipped with a second clamping rod, the interior of the shell is fixedly connected with two symmetrically arranged fourth sliding sleeves by screws, the interior of the fourth sliding sleeve is slidably equipped with a limiting rod, one side of the limiting rod is fixedly connected with a manual rod by screws, two symmetrically arranged first steering wheels and a second steering wheel are rotatably installed inside the shell, the limiting rod is fixedly connected with a second steel rope, the other end of the second steel rope passes around the first steering wheel and the second steering wheel respectively and is fixedly connected to the second clamping rod.

[0008] Preferably, the bottom of the rotating sleeve is fixedly connected to four symmetrically arranged support columns by screws, the internal threads of the support columns are installed with lifting screws, and the bottom of the lifting screw is fixedly connected to an anti-sliding block by screws.

[0009] Preferably, a second sliding groove is provided inside the second sliding sleeve, the sliding block is slidably connected inside the second sliding groove, a first thread groove is provided inside the sliding block, and the active screw is threadably connected inside the sliding block.

[0010] Preferably, a first sliding groove is provided inside the first sliding sleeve, the safety rod is slidably connected inside the first sliding groove, an ejection spring is welded to the bottom of the safety rod, and the other end of the ejection spring is welded to the inner wall of the first sliding groove.

[0011] Preferably, a third sliding groove is provided inside the third sliding sleeve, the second clamping rod is slidably connected inside the third sliding groove, a return spring is welded to one end of the second clamping rod, and the other end of the return spring is welded to the inner wall of the third sliding groove.

[0012] Preferably, a fourth sliding groove is opened inside the fourth sliding sleeve, the limiting rod is slidably connected inside the fourth sliding groove, a vertical spring is welded to the bottom of the limiting rod, and the other end of the vertical spring is welded to the inner wall of the fourth sliding groove.

[0013] Preferably, a second thread groove is provided inside the support column, the lifting screw is threadedly connected inside the second thread groove, and the lifting screw and the second thread groove have the same shape and size.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention starts the motor by setting structures such as an active screw rod and a sliding block. The motor drives the cross bar to rotate, and the base is driven to move downward through the support rod and the placement block. When the sliding block moves downward, the first clamping rod is driven to rotate through the first steel rope, and the top of the first clamping rod is moved out of the inner groove of the base. The motor is started in the reverse direction, and the base is driven to rise through the support rod and the placement block, so that the mold can be replaced. The present invention has a high degree of automation, is convenient and fast, and achieves a higher degree of automation.

[0016] 2. The present invention arranges structures such as a safety rod and a second clamping rod. When the first clamping rod rotates, it drives the limit rod to move downward. When the limit rod moves downward, the second clamping rod is pulled inward by the second steel rope. The safety rod is pushed out by the ejection spring. When the lower slot on the safety rod reaches the second clamping rod, the second clamping rod is pushed out by the reset spring and embedded in the slot. The safety rod is fixed to prevent someone from operating the upper mold assembly incorrectly when changing the mold, thereby preventing a safety accident from occurring due to the lowering of the upper mold assembly. The protective effect is achieved.

[0017] 3. The present invention, through the arrangement of supporting columns, lifting screws and other structures, can rotate and adjust four lifting screws according to the height of the equipment to be used in combination, and prevent the sliding block from falling. When the height of the lower module is consistent with the height of the equipment to be used in combination and the equipment as a whole is in a horizontal state, the rotation of the lifting screws can be stopped. The device can be used in combination on equipment of different models and heights, achieving a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view of the present invention;

[0019] Figure 2 It is an enlarged view of structure A of the present invention;

[0020] Figure 3 It is an enlarged view of structure B of the present invention;

[0021] Figure 4 It is an enlarged view of structure C of the present invention;

[0022] Figure 5 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 6 It is a schematic diagram of the overall structure of the second sliding sleeve of the present invention;

[0024] Figure 7 It is a schematic diagram of the overall structure of the first clamping rod of the present invention.

[0025] In the figure: 1. rotating sleeve; 2. cross bar; 3. lower mold assembly; 4. base; 5. shell; 6. first sliding sleeve; 7. ejection spring; 8. active bevel gear; 9. driven bevel gear; 10. motor; 11. second sliding sleeve; 12. sliding block; 13. active screw; 14. support rod; 15. placement block; 16. guide wheel; 17. cross spring; 18. first steel rope; 19. first clamping rod; 20. rotating shaft; 21. second clamping rod; 22. third sliding sleeve; 23. reset spring; 24. second steel rope; 25. first steering wheel; 26. second steering wheel; 27. limit rod; 28. vertical spring; 29. ​​safety rod; 30. manual rod; 31. fourth sliding sleeve; 32. support column; 33. lifting screw; 34. anti-sliding block. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Embodiment 1:

[0028] See also Figure 1-7The quick mold replacement mechanism used in the cold bending forming machine includes a rotating sleeve 1 and a base 4. A motor 10 is installed on one side of the rotating sleeve 1. The output end of the motor 10 is connected to a coaxially arranged cross bar 2 through a coupling. Two symmetrically arranged active bevel gears 8 are fixedly connected to the cross bar 2 by screws. The top of the rotating sleeve 1 is fixedly connected to a shell 5 by screws. Two symmetrically arranged active screws 13 are installed inside the rotating sleeve 1 and the shell 5 for rotation together. The bottom of the active screw 13 is fixedly connected to a driven bevel gear 9 by screws. The inside of the shell 5 is fixedly connected to two symmetrically arranged second sliding sleeves 11 by screws. The inside of the second sliding sleeve 11 is slidably assembled with a sliding block 12. The active screw 13 is threadedly installed inside the sliding block 12. The top of the sliding block 12 is fixedly connected to two symmetrically arranged support rods 14 by screws. The tops of the two support rods 14 are fixedly connected to a placement block 15 by screws. Two symmetrically arranged second sliding sleeves 11 are respectively installed inside the shell 5 for rotation. A rotating shaft 20 and a guide wheel 16 are arranged, and a first clamping rod 19 is fixedly connected to the rotating shaft 20 by screws. A first steel rope 18 is fixedly connected to one side of the sliding block 12, and the other end of the first steel rope 18 passes around the guide wheel 16 and is fixedly connected to the first clamping rod 19. A transverse spring 17 is welded on the first clamping rod 19, and the other end of the transverse spring 17 is welded to the second sliding sleeve 11. The top of the base 4 is fixedly connected to the lower mold group 3 by screws. Through the arrangement of the active screw 13, the sliding block 12 and other structures, the motor 10 is started, and the motor 10 drives the cross bar 2 to rotate, and drives the base 4 to move downward through the support rod 14 and the placement block 15. When the sliding block 12 moves downward, the first clamping rod 19 is driven to rotate by the first steel rope 18, and the top of the first clamping rod 19 is moved out of the internal groove of the base 4. The motor 10 is started in the reverse direction, and the base 4 is driven to rise through the support rod 14 and the placement block 15, so that the mold can be replaced. The degree of automation is high, convenient and fast, and a higher degree of automation is achieved.

[0029] See also Figure 1-7The interior of the housing 5 is fixedly connected to two symmetrically arranged first sliding sleeves 6 by screws, and the interior of the first sliding sleeve 6 is slidably equipped with a safety rod 29, and one side of the first sliding sleeve 6 is fixedly connected to a third sliding sleeve 22 by screws, and the interior of the third sliding sleeve 22 is slidably equipped with a second clamping rod 21, and the interior of the housing 5 is fixedly connected to two symmetrically arranged fourth sliding sleeves 31 by screws, and the interior of the fourth sliding sleeve 31 is slidably equipped with a limit rod 27, and one side of the limit rod 27 is fixedly connected to a manual rod 30 by screws, and the interior of the housing 5 is respectively rotatably equipped with two symmetrically arranged first steering wheels 25 and second steering wheels 26, and the limit rod 27 is fixedly connected to a second steel rope 24, and the first The other ends of the two steel ropes 24 are respectively passed around the first steering wheel 25 and the second steering wheel 26 and fixedly connected to the second clamping rod 21. Through the arrangement of the safety rod 29, the second clamping rod 21 and other structures, when the first clamping rod 19 rotates, it drives the limit rod 27 to move downward. When the limit rod 27 moves downward, the second clamping rod 21 is pulled inward by the second steel rope 24, and the safety rod 29 is ejected by the ejection spring 7. When the lower slot on the safety rod 29 reaches the second clamping rod 21, the second clamping rod 21 is ejected by the reset spring 23 and embedded in the slot. The safety rod 29 is fixed to prevent someone from operating the upper mold assembly incorrectly when changing the mold, causing a safety accident, thereby achieving a protective effect.

[0030] See also Figure 1-4 A second sliding groove is provided inside the second sliding sleeve 11 , and the sliding block 12 is slidably connected inside the second sliding groove. A first thread groove is provided inside the sliding block 12 , and the active screw 13 is threadedly connected inside the sliding block 12 .

[0031] See also Figure 1 A first sliding groove is provided inside the first sliding sleeve 6, and a safety rod 29 is slidably connected inside the first sliding groove. An ejection spring 7 is welded to the bottom of the safety rod 29, and the other end of the ejection spring 7 is welded to the inner wall of the first sliding groove.

[0032] See also Figure 1-2 A third sliding groove is provided inside the third sliding sleeve 22, and the second clamping rod 21 is slidably connected inside the third sliding groove. A return spring 23 is welded to one end of the second clamping rod 21, and the other end of the return spring 23 is welded to the inner wall of the third sliding groove.

[0033] See also Figure 1-3 A fourth sliding groove is provided inside the fourth sliding sleeve 31, and a limiting rod 27 is slidably connected inside the fourth sliding groove. A vertical spring 28 is welded to the bottom of the limiting rod 27, and the other end of the vertical spring 28 is welded to the inner wall of the fourth sliding groove.

[0034] The specific implementation process of the present invention is as follows: the motor 10 is started, the motor 10 drives the cross bar 2 to rotate, the active bevel gear 8 rotates accordingly and drives the driven bevel gear 9 to rotate, the active screw 13 rotates accordingly, the sliding block 12 moves downward inside the second sliding sleeve 11 as the active screw 13 rotates, and drives the base 4 to move downward through the support rod 14 and the placement block 15. When the sliding block 12 moves downward, it pulls the first steel rope 18, and the first clamping rod 19 is driven to rotate by the first steel rope 18. The top of the first clamping rod 19 moves out of the inner groove of the base 4, and the limit rod 27 is held by the vertical spring. 28 is ejected, the bottom of the first card rod 19 is blocked by the limit rod 27, the top of the first card rod 19 is in an open state, the motor 10 is started in the reverse direction, and the base 4 is driven to rise through the support rod 14 and the placement block 15, so that the mold can be replaced. The degree of automation is high, and it is convenient and fast. When the first card rod 19 rotates, it drives the limit rod 27 to move downward. When the limit rod 27 moves downward, the second card rod 21 is pulled inward by the second steel rope 24. The safety rod 29 is ejected by the ejection spring 7. When the lower slot on the safety rod 29 reaches the second card rod 21, the second card rod 2 1 is pushed out by the reset spring 23 and embedded in the card slot, and the safety rod 29 is fixed to prevent someone from operating the upper die set incorrectly when changing the die, causing a safety accident. After the die is replaced, the manual rod 30 is moved downward, and the manual rod 30 drives the limit rod 27 to move downward. The transverse spring 17 presses against the bottom of the first card rod 19 to rotate. When the limit rod 27 descends, the second card rod 21 is pulled inward by the second steel rope 24, pressing the safety rod 29 downward, and the manual rod 30 is released. When the card slot at the upper end of the safety rod 29 reaches the second card rod 21, the reset spring 23 The second card rod 21 is pushed out of the slot, the safety rod 29 is fixed, the motor 10 is started, and the base 4 is driven to descend through the support rod 14 and the placement block 15. The bottom of the base 4 pushes the first card rod 19 and moves downward. When the internal groove of the base 4 reaches the top position of the first card rod 19, the transverse spring 17 pushes the first card rod 19 to rotate and embed the top of the first card rod 19 into the groove. The motor 10 is started in the reverse direction, and the base 4 is driven to rise through the support rod 14 and the placement block 15. When the first card rod 19 is tightly fitted with the groove, the motor 10 is stopped and the base 4 is fixed.

[0035] Embodiment 2:

[0036] See also Figure 1-7The bottom of the rotating sleeve 1 is fixedly connected with four symmetrically arranged support columns 32 by screws, and the internal threads of the support columns 32 are installed with lifting screws 33, and the bottom of the lifting screws 33 is fixedly connected with an anti-sliding block 34 by screws. Through the arrangement of structures such as the support columns 32 and the lifting screws 33, the four lifting screws 33 are respectively rotated and adjusted according to the height of the equipment to be used in combination, and the anti-sliding block 34 descends. When the height of the lower module 3 is consistent with the height of the equipment to be used in combination and the equipment as a whole is in a horizontal state, the lifting screws 33 can be stopped from rotating. It can be used in combination on equipment of different models and heights, achieving a wider range of applications.

[0037] See also Figure 1 A second thread groove is provided inside the support column 32, and the lifting screw 33 is threadedly connected inside the second thread groove. The lifting screw 33 and the second thread groove have the same shape and size.

[0038] Working principle: according to the height of the equipment to be used, the four lifting screws 33 are rotated and adjusted to lower the anti-sliding block 34. When the height of the lower module 3 is consistent with the height of the equipment to be used and the equipment as a whole is in a horizontal state, the lifting screws 33 can be stopped. It can be used on equipment of different models and heights, making it more applicable.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick mold change release mechanism used in a cold roll forming machine comprises a rotating sleeve (1) and a base (4), characterized in that: A motor (10) is installed on one side of the rotating sleeve (1); the output end of the motor (10) is connected to a coaxially arranged cross bar (2) via a coupling; two symmetrically arranged active bevel gears (8) are fixedly connected to the cross bar (2) via screws; the top of the rotating sleeve (1) is fixedly connected to a housing (5) via screws; two symmetrically arranged active screws (13) are installed inside the rotating sleeve (1) and the housing (5) for co-rotation; the bottom of the active screw (13) is fixedly connected to a driven bevel gear (9) via screws; The shell (5) is fixedly connected to two symmetrically arranged second sliding sleeves (11) by screws, the second sliding sleeve (11) is slidably mounted with a sliding block (12) inside, the active screw (13) is threadedly mounted inside the sliding block (12), the top of the sliding block (12) is fixedly connected to two symmetrically arranged support rods (14) by screws, the tops of the two support rods (14) are fixedly connected to a placement block (15) by screws, and the shell (5) is rotatably mounted with two symmetrically arranged rotating shafts. (20) and a guide wheel (16), the rotating shaft (20) is fixedly connected to a first clamping rod (19) by screws, one side of the sliding block (12) is fixedly connected to a first steel rope (18), the other end of the first steel rope (18) passes around the guide wheel (16) and is fixedly connected to the first clamping rod (19), a transverse spring (17) is welded to the first clamping rod (19), and the other end of the transverse spring (17) is welded to the second sliding sleeve (11), and the top of the base (4) is fixedly connected to a lower mold assembly (3) by screws.

2. The quick mold change release mechanism used in the cold roll forming machine according to claim 1 is characterized in that: Two symmetrically arranged first sliding sleeves (6) are fixedly connected to the inside of the housing (5) by screws, a safety rod (29) is slidably mounted inside the first sliding sleeve (6), a third sliding sleeve (22) is fixedly connected to one side of the first sliding sleeve (6) by screws, a second clamping rod (21) is slidably mounted inside the third sliding sleeve (22), two symmetrically arranged fourth sliding sleeves (31) are fixedly connected to the inside of the housing (5) by screws, a limit rod (27) is slidably mounted inside the fourth sliding sleeve (31), a manual rod (30) is fixedly connected to one side of the limit rod (27) by screws, two symmetrically arranged first steering wheels (25) and second steering wheels (26) are rotatably mounted inside the housing (5), a second steel rope (24) is fixedly connected to the limit rod (27), the other end of the second steel rope (24) is respectively passed around the first steering wheel (25) and the second steering wheel (26) and fixedly connected to the second clamping rod (21).

3. The quick mold change release mechanism used in the cold roll forming machine according to claim 1 is characterized in that: The bottom of the rotating sleeve (1) is fixedly connected to four symmetrically arranged support columns (32) by means of screws, a lifting screw rod (33) is installed on the internal threads of the support columns (32), and the bottom of the lifting screw rod (33) is fixedly connected to an anti-sliding block (34) by means of screws.

4. The quick mold change release mechanism used in the cold roll forming machine according to claim 1 is characterized in that: A second sliding groove is provided inside the second sliding sleeve (11), the sliding block (12) is slidably connected inside the second sliding groove, a first thread groove is provided inside the sliding block (12), and the active screw (13) is threadedly connected inside the sliding block (12).

5. The quick mold change release mechanism used in the cold roll forming machine according to claim 2 is characterized in that: A first sliding groove is provided inside the first sliding sleeve (6), and the safety rod (29) is slidably connected inside the first sliding groove. An ejection spring (7) is welded to the bottom of the safety rod (29), and the other end of the ejection spring (7) is welded to the inner wall of the first sliding groove.

6. The quick mold change release mechanism used in the cold roll forming machine according to claim 2 is characterized in that: A third sliding groove is provided inside the third sliding sleeve (22), and the second clamping rod (21) is slidably connected inside the third sliding groove. A return spring (23) is welded to one end of the second clamping rod (21), and the other end of the return spring (23) is welded to the inner wall of the third sliding groove.

7. The quick mold change release mechanism used in the cold roll forming machine according to claim 2 is characterized in that: A fourth sliding groove is provided inside the fourth sliding sleeve (31), the limiting rod (27) is slidably connected inside the fourth sliding groove, a vertical spring (28) is welded to the bottom of the limiting rod (27), and the other end of the vertical spring (28) is welded to the inner wall of the fourth sliding groove.

8. The quick mold change release mechanism used in the cold roll forming machine according to claim 3 is characterized in that: A second thread groove is provided inside the support column (32), and the lifting screw rod (33) is threadedly connected inside the second thread groove. The lifting screw rod (33) and the second thread groove have the same shape and size.

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