A rolling mill for steel swing door frame

Abstract

The present invention relates to a rolling mill for steel swing door frames in the field of metal extrusion shaping equipment. During the pre-inspection process and the production process, an abutting wheel abutting against the surface of a rolling roller and a pointer linked to the abutting wheel drive the pointer to move back and forth above a scale when the rolling roller undergoes eccentric motion, and the amplitude of the eccentric motion of the rolling roller is amplified by an amplifying gear set, so that personnel can intuitively find the eccentrically moving rolling roller, thus overcoming the traditional method of using naked eye observation and relying on experience judgment, and facilitating timely, low-cost and intuitive discovery of problematic rolling rollers before and during production, thereby improving production safety and the rolling quality of steel swing door frames; in addition, by adjusting a push switch driven by a screw and a buzzer lamp electrically connected to the push switch, it is convenient to send out an alarm signal in a timely manner when multiple detection mechanisms are detected simultaneously, and it is also convenient to adjust the vibration threshold value that requires an alarm.

Description

Technical Field

[0001] The invention relates to a rolling mill, in particular to a rolling mill for a steel swing door frame applied in the field of metal extrusion equipment. Background Art

[0002] The production of steel swing door frames relies on a precise multi-roller rolling process, which precisely forms door frame strips by shaping steel plates step by step. Generally, the eccentric movement of the rollers needs to be monitored before and during rolling. When the eccentric movement of the rollers is large, the rollers generally vibrate too much or the surface of the rollers is severely worn and needs to be replaced.

[0003] The existing monitoring of rolling mills mainly relies on workers' inspections and their subjective experience and judgment. Precision equipment is needed to accurately detect possible roll defects. The inspection quality is not high and the precise detection operation is complicated. Summary of the invention

[0004] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the existing detection of eccentric motion of the pinching roller relies on manual discovery and secondary detection by precision equipment, the accuracy of manual inspection is poor and the secondary precision detection operation is cumbersome.

[0005] To solve the above problems, the present invention provides a rolling mill for steel swing door frames, comprising a frame and a plurality of pairs of rollers mounted on the frame and arranged vertically opposite to each other, a detection mechanism is provided on one side of the roller, the detection mechanism comprises an abutting wheel abutting against the surface of the roller, the abutting wheel is rotatably connected to a gear frame, a mounting box slidably connected to the outer side of the gear frame is sleeved on the outer side of the gear frame, a passive gear meshing with the gear frame is provided in the mounting box, the passive gear is fixedly connected to a first support shaft extending to the outer side of the mounting box, the first support shaft is connected to a second support shaft through an amplifying gear set, an eccentric disk is fixedly connected to the upper end of the second support shaft, a first moving frame is clamped on the eccentric disk, a sliding rod is fixedly connected to the outer end of the first moving frame, a pointer is fixedly connected to the end of the sliding rod, and a scale fixedly connected to the mounting box is provided below the pointer; the amplifying gear set comprises a pair of gears with a transmission ratio less than one and arranged in parallel, and the wheel diameter of the eccentric disk is larger than the wheel diameter of the largest gear in the amplifying gear set.

[0006] In the above-mentioned rolling mill for steel swing door frames, the eccentric rotation of the roller is monitored by the abutment wheel and the pointer linked to the abutment wheel, so that the problematic roller can be found in a low-cost and intuitive manner.

[0007] As a further improvement of the present application, a push switch is installed above the installation box and is arranged opposite to the outer end of the sliding rod. The push switch is electrically connected in series with a buzzer light and a power supply through a wire.

[0008] As a further improvement of the present application, the push switch is connected to a second movable frame through an elastic pin, the second movable frame passes through a guide plate fixedly connected to the mounting box, the outer end of the guide plate is fixedly connected to an adjusting screw threadedly connected to the second movable frame, the outer end of the elastic pin is nested in the second movable frame and slidably connected thereto, and a third spring abutting against the elastic pin is provided in the second movable frame.

[0009] As a further improvement of the present application, the rolling roller is connected and fixed to the frame by a quick-release structure, the quick-release structure includes a pair of mounting blocks arranged on both sides of the rolling roller, a power shaft rotatably connected to the mounting block passes through the mounting block, the outer end of the power shaft is connected to the power mechanism for transmission, a core shaft engaged with the power shaft is provided on both sides of the rolling roller, a bearing is sleeved on the core shaft, a half-width insert cylinder fixedly connected to the mounting block is sleeved on the outer side of the bearing, the half-width insert cylinder abuts against a movable insert cylinder sleeved on the other side of the bearing, the movable insert cylinder extends into the mounting block and is slidably connected thereto, a second spring abutting against the mounting block is sleeved on the outer side of the movable insert cylinder, a limiting cylinder for inserting the movable insert cylinder is sleeved on the outer side of the second spring, and a limiting bolt cooperating with the movable insert cylinder is penetrated through the limiting cylinder.

[0010] As a further improvement of the present application, the gear frame consists of a U-shaped frame and a rectangular frame. The U-shaped frame is sleeved on the outside of the abutment wheel and the rectangular frame is nested in the installation box. A rectangular slide groove for the gear frame to slide is opened in the installation box. The inner wall of one side of the rectangular frame is fixedly connected with latch teeth that cooperate with the passive gear and are linearly equidistantly distributed. The abutment wheel is made of steel and is rotatably connected to the gear frame through a rotating shaft. The outer end of the gear frame is abutted with a first spring nested in the installation box.

[0011] As a further improvement of the present application, both the movable insert cylinder and the half-width insert cylinder are cylindrical structures with semicircular cross-sections and are spliced ​​together to form a cylindrical structure. The movable insert cylinder is an open structure facing the roller side, a clamping block is provided on the outer end face of the core shaft, and a radial clamping groove is provided on the power shaft for inserting the clamping block.

[0012] As a further improvement of the present application, a pair of mounting blocks arranged vertically opposite to each other are both threadedly connected with a bidirectional adjustment screw rod, and a bolt column is provided at the upper end of the bidirectional adjustment screw rod.

[0013] As a further improvement of the present application, the rolling roller includes a roller core, a shaping cylinder is sleeved on the outer side of the roller core, an annular shaping protrusion is provided on the outer wall of the shaping cylinder, the abutment wheel abuts against the shaping protrusion, and the end of the shaping cylinder is sleeved with a sleeve fixedly connected to the side wall of the roller core.

[0014] To summarize, during the pre-inspection process and the production process, the present invention uses an abutment wheel abutting against the surface of the roller and a pointer linked to the abutment wheel to drive the pointer to move back and forth above the scale when the roller moves eccentrically, and amplifies the amplitude of the eccentric motion of the roller through an amplifying gear set, so that personnel can intuitively find the roller with eccentric motion, overcoming the traditional method of using naked eye observation and relying on experience and judgment, and facilitating timely, low-cost and intuitive discovery of problematic rollers before and during production, thereby improving production safety and the rolling quality of steel swing door frames. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the installation of the roller in this application;

[0016] Figure 2 for Figure 1 Schematic diagram of the longitudinal section structure;

[0017] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the detection mechanism in this application;

[0019] Figure 5 It is a schematic diagram of the explosion assembly of the detection mechanism in this application;

[0020] Figure 6 for Figure 2 A schematic diagram of the enlarged structure at B in the middle;

[0021] Figure 7 This is a schematic diagram of the explosive assembly of the quick-disassembly structure in this application;

[0022] Figure 8 It is a schematic diagram of the linkage between the abutment wheel and the pointer in this application.

[0023] Description of the numbers in the figure:

[0024] 1. Frame; 2. Roller; 3. Detection mechanism; 4. Abutment wheel; 5. Gear frame; 501. Clamping teeth; 6. Mounting box; 601. Guide block; 7. Passive gear; 8. First support shaft; 9. Amplifying gear set; 10. Eccentric disk; 11. Second support shaft; 12. First moving frame; 13. Sliding rod; 14. Pointer; 15. Scale; 16. First spring; 17. Mounting frame; 18. Mounting bolt; 19. Roller core; 20. Shaping Cylinder; 21. Sleeve; 22. Mandrel; 2201. Block; 23. Bearing; 24. Half-width insert cylinder; 25. Mounting block; 26. Moving insert cylinder; 27. Second spring; 28. Limit cylinder; 29. ​​Limit bolt; 30. Power shaft; 3001. Radial slot; 31. Bidirectional adjustment screw rod; 32. Second moving frame; 33. Guide plate; 34. Adjustment screw rod; 35. Elastic pin; 36. Push switch; 37. Buzzer light; 38. Power supply. DETAILED DESCRIPTION

[0025] The following describes two implementation modes of the present application in detail with reference to the accompanying drawings.

[0026] The first implementation method:

[0027] Figure 1-8 A rolling mill for a steel swing door frame is shown, comprising a frame 1 and a plurality of pairs of rollers 2 vertically oppositely arranged on the frame 1, a detection mechanism 3 is provided on one side of the roller 2, the detection mechanism 3 comprises an abutting wheel 4 abutting against the surface of the roller 2, the abutting wheel 4 is rotatably connected to a gear frame 5, a mounting box 6 slidably connected to the outer side of the gear frame 5 is sleeved, a passive gear 7 meshing with the gear frame 5 is arranged in the mounting box 6, the passive gear 7 is fixedly connected to a first support shaft 8 extending to the outer side of the mounting box 6, the first support shaft 8 is connected to a second support shaft 11 through an amplifying gear set 9, an eccentric disk 10 is fixedly connected to the upper end of the second support shaft 11, a first moving frame 12 is clamped on the eccentric disk 10, a sliding rod 13 is fixedly connected to the outer end of the first moving frame 12, a pointer 14 is fixedly connected to the end of the sliding rod 13, and a scale 15 fixedly connected to the mounting box 6 is arranged below the pointer 14; the amplifying gear set 9 comprises a pair of gears with a transmission ratio less than one and arranged in parallel, the wheel diameter of the eccentric disk 10 is larger than the wheel diameter of the largest gear in the amplifying gear set 9.

[0028] For details, please refer to Figure 8Before producing the steel swing door frame, it is necessary to monitor the leveling state and wear state of the roller 2. When the roller 2 is not leveled or the surface of the roller 2 is worn, the roller 2 will rotate eccentrically. When the roller 2 rotates eccentrically, the roller 2 pushes the abutment wheel 4 to reciprocate along the length direction of the gear frame 5. The gear frame 5 drives the eccentric disk 10 to rotate through the passive gear 7, the first support shaft 8, the amplifying gear set 9 and the second support shaft 11. The eccentric disk 10 drives the sliding rod 13 and the pointer 14 to reciprocate along the length direction of the scale 15 through the first moving frame 12. In addition, during the production process, when the roller 2 is excessively worn or the vibration amplitude is too large, it will also rotate eccentrically, thereby driving the pointer 14 to move.

[0029] Compared with the traditional rolling mill for steel swing door frames, the present invention, during the pre-inspection process and the production process, uses the abutment wheel 4 abutting against the surface of the roller 2 and the pointer 14 linked to the abutment wheel 4 to drive the pointer 14 to move back and forth above the scale 15 when the roller 2 moves eccentrically, and amplifies the amplitude of the eccentric movement of the roller 2 by the amplifying gear set 9, so that personnel can intuitively find the eccentrically moving roller 2, overcoming the traditional method of using naked eye observation and relying on experience and judgment, and facilitating timely, low-cost and intuitive discovery of problematic rollers before and during production, thereby improving production safety and the rolling quality of steel swing door frames.

[0030] See also Figure 3-5 The gear frame 5 is composed of a U-shaped frame and a rectangular frame. The U-shaped frame is sleeved on the outside of the abutment wheel 4 and the rectangular frame is nested in the installation box 6. A rectangular slide groove for the gear frame 5 to slide is opened in the installation box 6. The inner wall of one side of the rectangular frame is fixedly connected with a latching tooth 501 that cooperates with the passive gear 7 and is linearly equidistantly distributed.

[0031] Specifically, after the contact wheel 4 is squeezed, it drives the gear frame 5 to move in the installation box 6, and the latching teeth 501 push the driven gear 7 to rotate.

[0032] See also Figure 3-5 The first moving frame 12 is a plate-like structure with an L-shaped cross section. An eccentric column that penetrates the first moving frame 12 is fixedly connected to the circumferential edge of the eccentric disk 10. The first moving frame 12 is provided with a transverse sliding groove for the eccentric column to slide transversely.

[0033] See also Figure 3-5 The surface of the mounting box 6 is fixedly connected with a guide block 601 for the sliding rod 13 to pass through, and the guide block 601 is provided with a through hole for the sliding rod 13 to pass through. The mounting box 6 is fixedly connected with a mounting frame 17, and the mounting frame 17 is fixed to the frame 1 by mounting bolts 18.

[0034] Specifically, the eccentric rotation amplitude of the roller 2 is amplified by the crank slider mechanism composed of the amplifying gear set 9 and the eccentric disk 10 and the first moving frame 12.

[0035] See also Figure 3-5 The abutting wheel 4 is made of steel and is rotatably connected to the gear frame 5 through a rotating shaft. The outer end of the gear frame 5 abuts against a first spring 16 nested in the mounting box 6 .

[0036] Specifically, the surface of the abutting wheel 4 is hard and elastically contacts with the surface of the roller 2 , so as to facilitate the transmission of the eccentric rotation amplitude of the roller 2 to the gear frame 5 .

[0037] See also Figure 6-7 The roller 2 is connected and fixed to the frame 1 through a quick-release structure. The quick-release structure includes a pair of mounting blocks 25 arranged on both sides of the roller 2. A power shaft 30 rotatably connected to the mounting block 25 is penetrated in the mounting block 25. The outer end of the power shaft 30 is connected to the power mechanism for transmission. A mandrel 22 engaged with the power shaft 30 is provided on both sides of the roller 2. A bearing 23 is sleeved on the mandrel 22. A half-width insert cylinder 24 fixedly connected to the mounting block 25 is sleeved on the outer side of the bearing 23. The half-width insert cylinder 24 abuts against a movable insert cylinder 26 sleeved on the other side of the bearing 23. The movable insert cylinder 26 extends into the mounting block 25 and is slidably connected thereto. A second spring 27 abutting against the mounting block 25 is sleeved on the outer side of the movable insert cylinder 26. A limiting cylinder 28 for inserting the movable insert cylinder 26 is sleeved on the outer side of the second spring 27. A limiting bolt 29 cooperating with the movable insert cylinder 26 is penetrated by the limiting cylinder 28.

[0038] Specifically, when disassembling the rolling roller 2, the movable insert cylinder 26 is pushed into the limiting cylinder 28 and locked in the limiting cylinder 28 by the limiting bolt 29, and then the rolling roller 2 is rotated so that the clamping position of the core shaft 22 and the power shaft 30 is toward one side of the movable insert cylinder 26, and the rolling roller 2 is pushed outward along this side so that the rolling roller 2 is separated from the half-width insert cylinder 24, thereby realizing the rapid disassembly of the rolling roller 2 and the bearing 23.

[0039] See also Figure 6-7 The movable inserting cylinder 26 and the half-width inserting cylinder 24 are both cylindrical structures with semicircular cross-sections and the two are spliced ​​to form a cylindrical structure.

[0040] See also Figure 6-7 The movable insert cylinder 26 is open on the side facing the roller 2, a clamping block 2201 is provided on the outer end surface of the core shaft 22, and a radial clamping groove 3001 is provided on the power shaft 30 for inserting the clamping block 2201.

[0041] Specifically, the roller 2 can be quickly disassembled and connected to the power mechanism through the open and slidable movable insert cylinder 26 and the clamping block 2201.

[0042] See also Figure 2 A pair of mounting blocks 25 arranged vertically opposite to each other are both threadedly connected with a bidirectional adjustment screw rod 31, and a bolt column is provided at the upper end of the bidirectional adjustment screw rod 31.

[0043] Specifically, the bidirectional adjustment screw rod 31 is driven to rotate by an electric wrench to adjust the vertical distance between a pair of vertically arranged rollers 2 .

[0044] See also Figure 6-7 The rolling roller 2 includes a roller core 19, a shaping cylinder 20 is sleeved on the outer side of the roller core 19, an annular shaping protrusion is provided on the outer wall of the shaping cylinder 20, the abutting wheel 4 abuts against the shaping protrusion, and a sleeve 21 is sleeved on the end of the shaping cylinder 20 and fixedly connected to the side wall of the roller core 19.

[0045] Specifically, when repairing the roller 2 , only the shaping cylinder 20 needs to be replaced or repaired, and there is no need to scrap the entire roller 2 .

[0046] Second implementation method:

[0047] Figure 2-4 A rolling mill for steel swing door frames is shown. Based on the first embodiment, a push switch 36 is installed above the mounting box 6 and is arranged opposite to the outer end of the sliding rod 13. The push switch 36 is electrically connected in series with a buzzer light 37 and a power source 38 through a wire.

[0048] For details, please refer to Figure 8 When multiple detection mechanisms 3 detect multiple rollers 2, when one of the rollers 2 rotates eccentrically beyond a threshold, the sliding rod 13 linked to the abutment wheel 4 moves outward to squeeze the push switch 36. The push switch 36 turns on the buzzer 37 and the power supply 38 to realize sound and light alarm, which is convenient for reminding operators or inspectors to find the problematic roller 2 in time when performing multiple detections.

[0049] See also Figure 2 The push switch 36 is connected to the second movable frame 32 through an elastic pin 35. The second movable frame 32 passes through a guide plate 33 fixedly connected to the mounting box 6. The outer end of the guide plate 33 is fixedly connected to an adjusting screw 34 threadedly connected to the second movable frame 32. The outer end of the elastic pin 35 is nested in the second movable frame 32 and slidably connected thereto. A third spring abutting against the elastic pin 35 is provided in the second movable frame 32.

[0050] Specifically, by adjusting the screw 34, it is convenient to adjust the linear distance between the push switch 36 and the sliding rod 13, thereby facilitating setting the amplitude threshold of the eccentric rotation of the roller 2, reducing the buzzing alarm caused by normal vibration and wear of the roller 2 due to extrusion, and improving the accuracy of the alarm.

[0051] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A rolling mill for steel swing door frames, characterized in that: The invention comprises a frame (1) and a plurality of pairs of rollers (2) mounted on the frame (1) and arranged vertically opposite to each other. A detection mechanism (3) is provided on one side of the rollers (2). The detection mechanism (3) comprises an abutting wheel (4) abutting against the surface of the rollers (2). The abutting wheel (4) is rotatably connected to a gear frame (5). The outer side of the gear frame (5) is provided with a mounting box (6) slidably connected thereto. The mounting box (6) is provided with a passive gear (7) meshing with the gear frame (5). The passive gear (7) is fixedly connected to a first support shaft (8) extending to the outer side of the mounting box (6). The first support shaft (8) is enlarged by a The gear set (9) is connected to a second support shaft (11), an eccentric disk (10) is fixedly connected to the upper end of the second support shaft (11), a first movable frame (12) is clamped to the eccentric disk (10), a sliding rod (13) is fixedly connected to the outer end of the first movable frame (12), a pointer (14) is fixedly connected to the end of the sliding rod (13), and a scale (15) fixedly connected to the mounting box (6) is provided below the pointer (14); the amplifying gear set (9) comprises a pair of gears having a transmission ratio less than one and arranged in parallel, and the wheel diameter of the eccentric disk (10) is larger than the wheel diameter of the largest gear in the amplifying gear set (9); The gear frame (5) is composed of a U-shaped frame and a rectangular frame. The U-shaped frame is sleeved on the outside of the abutment wheel (4) and the rectangular frame is nested in the installation box (6). A rectangular slide groove for the gear frame (5) to slide is provided in the installation box (6). The inner wall of one side of the rectangular frame is fixedly connected with latch teeth (501) that cooperate with the passive gear (7) and are linearly equidistantly distributed. The abutment wheel (4) is made of steel material and is rotatably connected to the gear frame (5) via a rotating shaft. The outer end of the gear frame (5) is abutted with a first spring (16) nested in the installation box (6). The roller (2) is connected and fixed to the frame (1) via a quick-release structure. The quick-release structure comprises a pair of mounting blocks (25) arranged on both sides of the roller (2). A power shaft (30) rotatably connected to the mounting block (25) runs through the mounting block (25). The outer end of the power shaft (30) is connected to a power mechanism for transmission. A mandrel (22) engaged with the power shaft (30) is provided on both sides of the roller (2). A bearing (23) is sleeved on the mandrel (22). A semi-rotatable bearing (23) is sleeved on the outer side of the bearing (23). The half-width insert cylinder (24) is in contact with a movable insert cylinder (26) sleeved on the other side of the bearing (23); the movable insert cylinder (26) extends into the mounting block (25) and is slidably connected thereto; a second spring (27) is sleeved on the outer side of the movable insert cylinder (26) and is in contact with the mounting block (25); a limiting cylinder (28) is sleeved on the outer side of the second spring (27) for the movable insert cylinder (26) to be inserted; and a limiting bolt (29) is passed through the limiting cylinder (28) and is matched with the movable insert cylinder (26); A push switch (36) is mounted above the installation box (6) and is arranged opposite to the outer end of the sliding rod (13). The push switch (36) is electrically connected in series with a buzzer light (37) and a power source (38) via a wire. The push switch (36) is connected to a second movable frame (32) via an elastic pin (35). The second movable frame (32) is penetrated by a guide plate (33) fixedly connected to the installation box (6). The outer end of the guide plate (33) is fixedly connected to an adjusting screw (34) threadedly connected to the second movable frame (32). The outer end of the elastic pin (35) is embedded in the second movable frame (32) and is slidably connected thereto. A third spring abutting against the elastic pin (35) is arranged in the second movable frame (32).

2. A rolling mill for steel swing door frames according to claim 1, characterized in that: The movable insert cylinder (26) and the half-width insert cylinder (24) are both cylindrical structures with semicircular cross-sections and are spliced ​​together to form a cylindrical structure. The movable insert cylinder (26) is an open structure on the side facing the roller (2). A clamping block (2201) is provided on the outer end surface of the core shaft (22), and a radial clamping groove (3001) is provided on the power shaft (30) for inserting the clamping block (2201).

3. A rolling mill for steel swing door frames according to claim 1, characterized in that: A pair of mounting blocks (25) arranged vertically opposite to each other are both threadedly connected with a bidirectional adjustment screw rod (31), and a bolt column is provided at the upper end of the bidirectional adjustment screw rod (31).

4. A rolling mill for steel swing door frames according to claim 1, characterized in that: The rolling roller (2) comprises a roller core (19), a shaping cylinder (20) is sleeved on the outer side of the roller core (19), an annular shaping protrusion is provided on the outer wall of the shaping cylinder (20), the abutment wheel (4) abuts against the shaping protrusion, and a sleeve (21) is sleeved on the end of the shaping cylinder (20) and is fixedly connected to the side wall of the roller core (19).

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