Riveting and curling device for sealing drying tank

Abstract

The utility model relates to the field of drying tank processing, and discloses a riveting crimping device for sealing a drying tank, which comprises a crimping mechanism, the crimping mechanism comprises a first hobbing cutter (1) and a second hobbing cutter (2) which are both rotating bodies, and further comprises a crimping motor (3), and the crimping motor (3) is connected with a transmission assembly (4) and drives the first hobbing cutter (1) and the second hobbing cutter (2) to rotate through the transmission assembly (4); the edge of the first hob (1) is an arc-shaped groove edge (11), and the edge of the second hob (2) is an inclined plane edge (21). Through multi-gear meshing transmission, hobbing cutter tangential feeding is achieved under pushing of the oil cylinder, curling is stable, and quality is good; automatic feeding is adopted, clamping is stable, and efficiency is high; a 60-degree tank opening hemming pretreatment structure is adopted, so that product cracking is avoided, and the service life is prolonged; the hob adopts the combination of arc shape and profiling, so that the stress is balanced in the curling process, and the workpiece is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the field of drying can processing, in particular to a riveting and curling device for sealing a drying can. Background Art

[0002] In the existing technology, the hob adopts a fixed method and is divided into multiple stations for rolling forming, which is inefficient and slow; the processing process requires manual clamping, which is unstable and inefficient. In addition, the pre-treatment bending angle of the drying tank mouth is 90°. During the curling process, the surface of the workpiece is greatly damaged and is prone to cracking in actual applications. Utility Model Content

[0003] The utility model aims at the shortcomings of the prior art and provides a riveting and curling device for sealing a drying can.

[0004] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0005] A riveting and curling device for sealing a drying can comprises a curling mechanism, wherein the curling mechanism comprises a first roller cutter and a second roller cutter, both of which are rotating bodies, wherein the first roller cutter and the second roller cutter are respectively fixedly connected to a first rotating shaft and a second rotating shaft and rotate around the first rotating shaft and the second rotating shaft, and further comprises a curling motor, wherein the curling motor is connected to a transmission assembly and drives the first roller cutter and the second roller cutter to rotate through the transmission assembly; the blade edge of the first roller cutter is an arc-shaped groove blade edge, and the blade edge of the second roller cutter is a bevel blade edge.

[0006] The first roller and the second roller are both in contact with the cover plate at the sealing portion of the drying tank; two first rollers and two second rollers are provided, and the first rollers and the second rollers are spaced in pairs and circumferentially distributed at the sealing portion of the drying tank.

[0007] The radius of the arc-shaped groove blade is 3-3.5 mm, the arc angle of the arc-shaped groove blade is 150°-170°; the angle between the bevel blade and the axis of the drying tank is 5°-9°.

[0008] The transmission assembly includes a curling motor, a large gear, a driving gear set and a driven gear. The curling motor is fixedly connected to the large gear, the large gear cooperates with the driving gear set, the driving gear set cooperates with the driven gear, there are at least two driving gear sets and driven gears and they cooperate one by one. The first roller and the second roller are respectively fixed on different driven gears. The transmission assembly also includes a connecting plate and an oil cylinder. One end of the connecting plate is installed on the shaft of the driving gear set through a bearing, and the other end of the connecting plate is installed on the shaft of the driven gear through a bearing and is hinged to the telescopic rod of the oil cylinder. The curling motor drives the first roller and the second roller to rotate through the large gear, the driving gear set and the driven gear in turn, and drives the connecting plate to move through the telescopic rod of the oil cylinder and drives the first roller or the second roller on it to contact the sealing of the drying tank, so as to curl and press the cover of the drying tank.

[0009] It also includes a conveying mechanism, which includes a frame, a conveying track is provided on the frame, claw clamps that cooperate with the outer wall of the drying tank are installed in the conveying track, and there are at least two groups of claw clamps. It also includes a conveying cylinder, which is connected to the conveying track and controls the movement of the drying tank on the conveying track.

[0010] A curling station is provided on the frame in the direction of the conveying track, a mounting platform is fixedly installed below the curling station, the curling mechanism is installed on the mounting platform, a support rod is also installed on the mounting platform, the upper end surface of the support rod is a support plate, the support plate is in contact with the cover plate at the sealing end surface of the drying tank, when the support plate presses the cover plate onto the drying tank, the curling mechanism curls the cover plate and the edge of the tank mouth of the drying tank.

[0011] A spring is sleeved on the support rod, and the spring is located between the support plate and the mounting platform. A limit pin is provided at the lower end of the support rod, and the limit pin is located below the mounting platform and limits the upward movement range of the support rod. When the drying tank is not pressed down, the support rod moves upward to the limit position of the limit pin under the action of the spring, thereby ensuring that the upper end surface of the support plate is flush with the mounting platform.

[0012] It also includes a riveting mechanism installed on the frame, the riveting mechanism includes a riveting assembly located above the curling station, the riveting assembly includes a pushing cylinder and a riveting guide cap, the pushing cylinder pushes the riveting guide cap downward to rivet on the drying tank; the riveting mechanism also includes a pre-pressing assembly, the pre-pressing assembly includes a pre-pressing cylinder and a pre-pressing guide cap, the pre-pressing assembly and the riveting assembly are both located in the conveying direction of the conveying mechanism, and the pre-pressing assembly is located in front of the riveting assembly in the conveying direction.

[0013] The utility model has remarkable technical effects due to the adoption of the above technical solutions: the application transmits the motor kinetic energy to the hob through multi-gear meshing transmission, and adopts a hinge mechanism so that the hob can rotate around the axis, and realizes tangential feeding of the hob under the push of the oil cylinder, with stable curling and excellent quality; hydraulics are used to push four hobs for feeding, and the feeding is stable and controllable; automatic feeding is adopted, and the clamping is stable and the efficiency is high; a 60° can mouth curling pretreatment structure is adopted to avoid product cracking and increase the practical life; the hob adopts a combination of arc and contouring to ensure that the force is balanced during the curling process to avoid damage to the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 It is a cross-sectional view of the utility model.

[0016] Figure 3 yes Figure 2 A partial enlarged view of .

[0017] Figure 4 It is a structural schematic diagram of the curling mechanism of the utility model.

[0018] Figure 5 It is a structural schematic diagram of the first hob.

[0019] Figure 6 It is a structural schematic diagram of the first hob.

[0020] Figure 7 It is a schematic diagram of the structure of the pre-treatment drying tank and cover plate.

[0021] The names of the parts indicated by the numerical labels in the accompanying drawings are as follows: 1-first hob, 2-first hob, 3-curling motor, 4-transmission assembly, 5-frame, 6-claw clamp, 7-mounting platform, 8-riveting assembly, 80-pre-pressing assembly, 9-drying tank, 10-cover plate, 11-arc groove blade, 21-bevel blade, 41-large gear, 42-driving gear set, 43-driven gear, 43-connecting plate, 45-oil cylinder, 51-transmission track, 52-transmission cylinder, 71-support rod, 72-support plate, 711-spring, 712-limit pin, 81-pushing cylinder, 82-riveting guide cap, 801-pre-pressing guide cap. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0023] Example 1

[0024] A riveting and curling device for sealing a drying can comprises a curling mechanism, wherein the curling mechanism comprises a first hob 1 and a second hob 2 which are both rotating bodies, wherein the first hob 1 and the second hob 2 are respectively fixedly connected to a first rotating shaft and a second rotating shaft and rotate around the first rotating shaft and the second rotating shaft, and further comprises a curling motor 3, wherein the curling motor 3 is connected to a transmission assembly 4 and drives the first hob 1 and the second hob 2 to rotate through the transmission assembly 4; the cutting edge of the first hob 1 is a circular arc groove cutting edge 11, and the cutting edge of the second hob 2 is a bevel cutting edge 21.

[0025] The first roller cutter 1 and the second roller cutter 2 are both in contact with the cover plate 10 at the sealing portion of the drying tank 9; two first roller cutters 1 and two second roller cutters 2 are provided, and the first roller cutters 1 and the second roller cutters 2 are spaced in pairs and circumferentially distributed at the sealing portion of the drying tank 9.

[0026] The radius of the arc-shaped groove edge 11 is 3.2 mm, and the arc angle of the arc-shaped groove edge 11 is 161°; the angle between the bevel edge 21 and the axis of the drying tank 9 is 7°.

[0027] Example 2

[0028] The same as the first embodiment, the difference is that the transmission assembly 4 includes a winding motor, a large gear 41, a driving gear set 42 and a driven gear 43, the winding motor is fixedly connected to the large gear 41, the large gear 41 cooperates with the driving gear set 42, the driving gear set 42 cooperates with the driven gear 43, the driving gear set 42 and the driven gear 43 are two and one-to-one matched, the axis of the large gear 41 coincides with the axis of the support rod 71, the driving gear set 42 has four groups, the driving gear set 42 includes a lower gear that cooperates with the large gear 41 and an upper gear that cooperates with the driven gear 43, the upper gear and the lower gear are coaxially connected and rotate together, the first hob 1 The first and second rollers 1 and 2 are fixedly mounted on different driven gears 43 respectively, and also include a connecting plate 44 and an oil cylinder 45. One end of the connecting plate 44 is mounted on the shaft of the driving gear set 42 through a bearing, and the other end of the connecting plate 44 is mounted on the shaft of the driven gear 43 through a bearing and is hinged with the telescopic rod of the oil cylinder 45. The curling motor drives the first roller 1 and the second roller 2 to rotate through the large gear 41, the driving gear set 42 and the driven gear 43 in turn, and drives the connecting plate 44 to move through the telescopic rod of the oil cylinder 45 and drives the first roller 1 or the second roller 2 thereon to contact with the sealing of the drying tank 9, so as to curl and press the cover plate of the drying tank 9.

[0029] Example 3

[0030] The embodiment is the same as the first embodiment, except that it also includes a conveying mechanism, which includes a frame 5, a conveying track 51 is provided on the frame 5, a claw clamp 6 that cooperates with the outer wall of the drying tank 9 is installed in the conveying track 51, and the claw clamp 6 has at least two groups, and also includes a conveying cylinder 52, which is connected to the conveying track 51 and controls the movement of the drying tank 9 on the conveying track 51.

[0031] The frame 5 is provided with a curling station located in the direction of the conveying track 51, and a mounting platform 7 is fixedly installed below the curling station. The curling mechanism is installed on the mounting platform 7, and a support rod 71 is also installed on the mounting platform 7. The upper end surface of the support rod 71 is a support plate 72. The support plate 72 contacts and cooperates with the cover plate 10 at the sealing end surface of the drying tank 9. When the support plate 72 presses the cover plate 10 onto the drying tank 9, the curling mechanism curls the cover plate 10 and the edge of the tank mouth of the drying tank 9.

[0032] A spring 711 is sleeved on the support rod 71, and the spring 711 is located between the support plate 72 and the mounting platform 7. A limit pin 712 is provided at the lower end of the support rod 71, and the limit pin 712 is located below the mounting platform 7 and limits the upward movement range of the support rod 71. When the drying tank 9 is not pressed down, the support rod 71 moves upward to the limit position of the limit pin 712 under the action of the spring 711, thereby ensuring that the upper end surface of the support plate 72 is flush with the mounting platform 7.

[0033] Example 4

[0034] The same as Example 1, except that it also includes a riveting mechanism installed on the frame 5, the riveting mechanism includes a riveting assembly 8 located above the curling station, the riveting assembly 8 includes a pushing cylinder 81 and a riveting guide cap 82, the pushing cylinder 81 pushes the riveting guide cap 82 downward to rivet on the drying tank 9; the riveting mechanism also includes a pre-pressing assembly 80, the pre-pressing assembly 80 includes a pre-pressing cylinder and a pre-pressing guide cap 801, the pre-pressing assembly 80 and the riveting assembly 8 are both located in the conveying direction of the conveying mechanism, and the pre-pressing assembly 80 is located in front of the riveting assembly 8 in the conveying direction.

[0035] The specific curling steps of this application include:

[0036] 1) The edge of the lower end of the drying tank 9 is folded outwards, so that the angle between the outer edge of the tank edge and the wall of the drying tank 9 is 59° to 63°;

[0037] 2) Place the cover 10 at the downward opening of the drying tank 9 to complete the preparation of the workpiece to be processed;

[0038] 3) placing the workpiece on the conveying track 51 and clamping it by the claw clamp 6;

[0039] 4) Pre-pressing and riveting the workpiece group on the conveying track 51 by means of the pre-pressing assembly 80;

[0040] 5) The conveying cylinder 52 starts and drives the workpiece on the conveying track 51 to move to the next station, and at the same time performs pre-pressing riveting operation on the workpiece moved to the pre-pressing station at the rear;

[0041] 6) Repeat step 5 until the first workpiece moves to the curling station;

[0042] 7) The workpiece on the crimping station is subjected to the crimping and crimping operations simultaneously by the crimping assembly 8 and the crimping mechanism;

[0043] 8) The conveying cylinder 52 continues to work and moves the workpieces at the rear to the crimping station for riveting and crimping operations;

[0044] 9) The claw clamp 6 is loosened and the drying tank 9 is removed after the riveting and curling is completed.

[0045] The curling operation of step 6) includes: the first hob 1 works first and cuts into the workpiece tangentially, the workpiece is curled and flanged under the action of the arc-shaped groove edge 11 of the first hob 1, and then the second hob 2 cuts in for secondary curling.

[0046] In short, the above is only a preferred embodiment of the present utility model, and all equivalent changes and modifications made according to the scope of the patent application of the present utility model should fall within the scope of the present utility model patent.

Claims

1. A riveting and crimping device for sealing a drying can, characterized in that: The invention comprises a curling mechanism, the curling mechanism comprises a first hob (1) and a second hob (2) both of which are rotating bodies, and a curling motor (3), the curling motor (3) being connected to a transmission assembly (4) and driving the first hob (1) and the second hob (2) to rotate via the transmission assembly (4); the cutting edge of the first hob (1) is a circular arc groove cutting edge (11), and the cutting edge of the second hob (2) is a bevel cutting edge (21).

2. A riveting and crimping device for sealing a drying can according to claim 1, characterized in that: The first roller (1) and the second roller (2) are both in contact with the sealing of the drying tank (9); two first rollers (1) and two second rollers (2) are provided, and the first rollers (1) and the second rollers (2) are spaced apart in pairs and circumferentially distributed at the sealing of the drying tank (9).

3. The riveting and crimping device for sealing a drying can according to claim 1, characterized in that: The radius of the arc-shaped groove blade (11) is 3-3.5 mm, the arc angle of the arc-shaped groove blade (11) is 150°-170°; the angle between the bevel blade (21) and the axis of the drying tank (9) is 5°-9°.

4. The riveting and crimping device for sealing a drying can according to claim 1, characterized in that: The transmission assembly (4) comprises a winding motor, a large gear (41), a driving gear set (42) and a driven gear (43). The winding motor is fixedly connected to the large gear (41). The large gear (41) cooperates with the driving gear set (42). The driving gear set (42) cooperates with the driven gear (43). There are at least two driving gear sets (42) and two driven gears (43) and they are matched one by one. The first hob (1) and the second hob (2) are respectively fixedly mounted on different driven gears (43). The transmission assembly (4) also comprises a connecting plate (44) and an oil cylinder (45). One end of the connecting plate (44) is mounted on the shaft of the driving gear set (42) through a bearing. The other end of the connecting plate (44) is mounted on the shaft of the driven gear (43) through a bearing and is hinged to the telescopic rod of the oil cylinder (45).

5. The riveting and crimping device for sealing a drying can according to claim 1, characterized in that: The conveying mechanism also includes a frame (5), a conveying track (51) is provided on the frame (5), claws (6) matched with the outer wall of the drying tank (9) are installed in the conveying track (51), and the claws (6) are provided in at least two groups. The conveying cylinder (52) is connected to the conveying track (51) and controls the movement of the drying tank (9) on the conveying track (51).

6. A riveting and crimping device for sealing a drying can according to claim 5, characterized in that: A curling station is provided on the frame (5), a mounting platform (7) is fixedly installed below the curling station, the curling mechanism is installed on the mounting platform (7), a support rod (71) is also installed on the mounting platform (7), the upper end surface of the support rod (71) is a support plate (72), and the support plate (72) is in contact with a cover plate (10) at the sealing end surface of the drying tank (9).

7. The riveting and crimping device for sealing a drying can according to claim 6, characterized in that: A spring (711) is sleeved on the support rod (71), and the spring (711) is located between the support plate (72) and the mounting platform (7). A limit pin (712) is provided at the lower end of the support rod (71), and the limit pin (712) is located below the mounting platform (7) and limits the upward movement range of the support rod (71).

8. The riveting and crimping device for sealing a drying can according to claim 6, characterized in that: The invention also comprises a riveting mechanism, which comprises a riveting assembly (8) located above the curling station, the riveting assembly (8) comprising a pushing cylinder (81) and a riveting guide cap (82), the pushing cylinder (81) pushes the riveting guide cap (82) downward to be riveted onto the drying tank (9); the riveting mechanism also comprises a pre-pressing assembly (80), the pre-pressing assembly (80) comprises a pre-pressing cylinder and a pre-pressing guide cap (801), and the pre-pressing assembly (80) and the riveting assembly (8) are both located in the conveying direction of the conveying mechanism.

Images