Planetary spiral slotting device for corrugated pipe

Abstract

The invention discloses a corrugated pipe planet spiral slotting device which comprises a planet gear mechanism, the planet gear mechanism comprises a planet carrier driven by a power device to rotate, three or four planet gears rotationally installed on the planet carrier and a fixedly-arranged inner gear ring, the planet gears are meshed with the inner gear ring, the planet gears are evenly distributed in the circumferential direction, and the planet gears are meshed with the inner gear ring. The planet wheel is installed on the disc shaft, the disc shaft is installed on the planet carrier, and the center of the planet carrier is provided with a pipe passing cone for a corrugated pipe to penetrate through. Each disc shaft is provided with one cutter disc, each cutter disc is provided with a spiral rib, an arc-shaped straight rib and a transition rib, all the spiral ribs are arranged on the same spiral, the distance between every two adjacent spiral ribs is equal, and in only one circle of spiral, a grooving cutter is arranged between every two adjacent spiral ribs. The arc-shaped straight edges and the grooving cutters are equal in number and correspond in position. The planetary gear mechanism is adopted, the planetary gear mechanism is provided with three shafts or four shafts, the structure is simple, and reliability is good.

Description

Technical Field

[0001] The invention relates to the technical field of bellows production equipment, in particular to a planetary spiral grooving device for bellows. Background Art

[0002] The existing bellows slotting device usually has six or eight shafts, each shaft is driven by a synchronous belt, each shaft is provided with a cutter disc, and each shaft is connected to a clamping device driven by a cylinder. When slotting the bellows, the cylinder moves to make each cutter disc close to the bellows synchronously, and then each shaft rotates to make the cutter disc slot the bellows.

[0003] The above-mentioned slotting device has a large number of shafts and requires a large number of transmission belts, resulting in a complex structure and poor reliability. Summary of the invention

[0004] In view of the above-mentioned shortcomings, the technical problem to be solved by the present invention is to provide a planetary spiral grooving device for a bellows with a simple structure and good reliability.

[0005] To solve the above technical problems, the first technical solution of the present invention is:

[0006] A planetary spiral grooving device for a bellows, comprising:

[0007] A planetary gear mechanism, the planetary gear mechanism comprising a planetary carrier driven to rotate by a power device, planetary wheels rotatably mounted on the planetary carrier, and a fixed inner gear ring, the planetary wheels meshing with the inner gear ring, three or four planetary wheels are provided, the planetary wheels are evenly distributed along the circumferential direction, each of the planetary wheels is respectively mounted on a disc shaft, the disc shaft is mounted on the planetary carrier, and a tube cone is provided at the center of the planetary carrier for the corrugated tube to pass through;

[0008] A cutter disc, each of which is provided on the disc shaft, and the cutter disc is provided with spiral ridges, arcuate straight ridges and transition ridges connected between adjacent arcuate straight ridges, all of which are on the same spiral, and the distances between two adjacent spiral ridges are equal. Only in one circle of the spiral, a slotting knife is provided between two adjacent spiral ridges, the number of the arcuate straight ridges is equal to that of the slotting knife and their positions correspond, and all of which are arranged along the same spiral direction.

[0009] Preferably, three planetary wheels are provided, and the projected length of each spiral ridge in the radial direction of the cutter disc is twice the trough spacing of the corrugated tube.

[0010] Preferably, three planetary wheels are provided, and the projection length of each spiral ridge in the radial direction of the cutter disc is equal to the trough spacing of the corrugated tube.

[0011] Preferably, four planetary wheels are provided, and the projected length of each spiral ridge in the radial direction of the cutter disc is twice the trough spacing of the corrugated tube.

[0012] Preferably, four planetary wheels are provided, and the projection length of the spiral ridge in the radial direction of the cutter disc is equal to the trough spacing of the corrugated tube.

[0013] Preferably, the planetary gear mechanism is provided with two sets, the planetary frame is a Y-shaped frame, the three disc shafts are installed between the opposite ends of the two Y-shaped frames, and a tube cone is respectively provided at the center of the two Y-shaped frames.

[0014] Preferably, the planetary gear mechanism is provided with two sets, the planet carrier is a cross, the four disc shafts are installed between the opposite ends of the two crosses, and a tube cone is respectively provided at the center of the two crosses.

[0015] To solve the above technical problems, the second technical solution of the present invention is:

[0016] A planetary spiral grooving device for a bellows, comprising:

[0017] A planetary gear mechanism, the planetary gear mechanism comprising a planetary carrier driven to rotate by a power device, planetary wheels rotatably mounted on the planetary carrier, and a fixed inner gear ring, the planetary wheels meshing with the inner gear ring, four planetary wheels are provided, the planetary wheels are evenly distributed along the circumferential direction, each of the planetary wheels is respectively mounted on a disc shaft, four of the disc shafts are mounted on the planetary carrier, and a tube cone is provided at the center of the planetary carrier for the corrugated tube to pass through;

[0018] A cutter disc, wherein each of the two disc shafts located on a diagonal line is provided with a cutter disc, wherein the cutter disc is provided with spiral ridges, arcuate straight ridges and transition ridges connected between adjacent arcuate straight ridges, wherein all the spiral ridges are on the same spiral, and the distances between two adjacent spiral ridges are equal, and only in one circle of the spiral are slotting knives respectively provided between two adjacent spiral ridges, wherein the number of the arcuate straight ridges is equal to that of the slotting knives and their positions correspond, and wherein all the arcuate straight ridges are arranged along the same spiral direction;

[0019] A guide plate, wherein the two plate shafts located on the other diagonal line are respectively provided with a guide plate, the guide plate is provided with spiral ridges, arc-shaped straight ridges and transition ridges connected between adjacent arc-shaped straight ridges, all of the spiral ridges are on the same spiral, the distances between two adjacent spiral ridges are equal, the number of the arc-shaped straight ridges is equal to that of the slotting knife and their positions correspond, and all of the arc-shaped straight ridges are arranged along the same spiral direction.

[0020] Preferably, a conical guide sleeve is provided on the tube cone.

[0021] Preferably, the planet carrier is fixed with a driven driving wheel, the driven driving wheel is meshed with an active driving wheel, and the active driving wheel is driven by the power device.

[0022] After adopting the above technical solution, the beneficial effects of the present invention are:

[0023] The present application adopts a planetary gear mechanism, which has three or four axes, a simple structure, and good reliability. It is also possible to open two, three or four grooves in each trough, or to open two, three or four grooves in the trough with one trough between them, and has good versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of a planetary spiral grooving device for a bellows according to the present invention;

[0025] Figure 2 It is a three-dimensional structural schematic diagram of another viewing angle of an embodiment of the planetary spiral grooving device for a bellows according to the present invention;

[0026] Figure 3 It is a schematic cross-sectional view of an embodiment of a planetary spiral grooving device for a bellows according to the present invention;

[0027] Figure 4 yes Figure 1 Schematic diagram of the structure of the middle cutter disc;

[0028] Figure 5 yes Figure 1 Schematic diagram of the structure of the planet carrier;

[0029] In the figure: 1, planet carrier; 11, tube cone; 2, planetary gear; 3, inner ring gear; 4, disc shaft; 5, bellows; 6, cutter disc; 61, spiral ridge; 62, arc straight edge; 63, transition ridge; 64, cutter hole; 7, driven drive wheel; 8, active drive wheel. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0031] Embodiment 1

[0032] like Figure 1-Figure 5 As shown in the figure, a planetary spiral grooving device for a bellows comprises:

[0033] The planetary gear mechanism comprises a planetary carrier 1 driven to rotate by a power device, a planetary gear 2 rotatably mounted on the planetary carrier 1, and a fixed inner gear ring 3, the planetary gear 2 meshes with the inner gear ring 3, three or four planetary gears 2 are provided, and the planetary gears 2 are evenly distributed along the circumferential direction, each planetary gear 2 is respectively mounted on a disk shaft 4, and the disk shaft 4 is mounted on the planetary carrier 1, and a tube cone 11 is provided at the center of the planetary carrier 1 for the corrugated tube 5 to pass through;

[0034] A cutter disc 6 is provided on each disc shaft 4, and each cutter disc 6 has exactly the same structure. The cutter disc 6 is provided with spiral ridges 61, arcuate straight ridges 62 and transition ridges 63 connected between adjacent arcuate straight ridges 62. All the spiral ridges 61 are on the same spiral, and the spacing between two adjacent spiral ridges 61 is equal. Only in one circle of the spiral, a slotting knife is provided between two adjacent spiral ridges 61 (a knife hole 64 for installing the slotting knife is provided on the cutter disc 6), the number of the arcuate straight ridges 62 and the slotting knife are equal and the positions are corresponding, all the arcuate straight ridges 62 are arranged along the same spiral direction, and the arcuate straight ridges 62 extend circumferentially.

[0035] When grooving the bellows 5, the bellows 5 passes through the tube cone, and the spiral ridges 61 on the four cutter discs 6 extend into the troughs of the bellows 5. The power device drives the planetary carrier 1 to rotate, and the planetary carrier 1 drives the planetary gear 2 to rotate and revolve along the inner gear ring 3 at the same time. When the planetary gear 2 rotates, it drives the spiral ridges 61 to rotate, and the spiral ridges 61 drive the bellows 5 to feed axially; when it rotates to the position between the two spiral ridges 61, at this time, due to the lack of the drive of the spiral ridges 61, the bellows 5 cannot be fed axially, and the grooving cutter rotates to cut the troughs. A grooving cutter on each cutter disc 6 simultaneously opens a groove on the same trough to complete a grooving operation. At the same time, the arc-shaped straight edge 62 corresponding to the position of the grooving cutter for grooving is stuck in a trough to position the bellows 5 axially to prevent the bellows 5 from axially moving, resulting in inaccurate grooving position. Then the cutter disc 6 continues to rotate, and when it rotates to the position of the next spiral ridge 61, the spiral ridge 61 drives the corrugated tube 5 to feed axially to perform the next grooving operation.

[0036] In which, due to the revolution of the planetary gear 2, the next slotting position is offset from the previous slotting position.

[0037] In the illustrated embodiment, the planetary gear mechanism is provided with four planetary gears 2, and the projected length of each spiral ridge 61 in the radial direction of the cutter head 6 is twice the trough spacing of the bellows 5. Each time a spiral ridge 61 is rotated, the bellows 5 is driven to axially feed two troughs, and four grooves are opened on each trough.

[0038] In the illustrated embodiment, the planet carrier is a cross, and four disc shafts 4 are respectively mounted at the four ends of the cross. A pipe cone 11 is provided in the middle of the cross for the corrugated pipe 5 to pass through. Preferably, the pipe cone 11 is a conical structure to facilitate the passage of the corrugated pipe 5.

[0039] In order to improve the stability of the system operation and effectively support the bellows 5, in the illustrated embodiment, two sets of planetary gear mechanisms are provided, two crosses are arranged opposite to each other, and the disc shaft 4 is installed between the two crosses. The two sets of planetary gear mechanisms are connected to form a whole, with good motion stability, and the two ends of the bellows 5 are supported respectively, with good support, which facilitates the axial feeding of the bellows 5.

[0040] The transition ridges 63 are preferably spiral-shaped, and all the transition ridges 63 are on the same spiral.

[0041] A driven driving wheel 7 is fixed on one of the crosses, and the driven driving wheel 7 is meshed with an active driving wheel 8. The active driving wheel 8 is driven to rotate by a power device, and the active driving wheel 8 drives the driven driving wheel 7 to rotate, thereby driving the planet carrier 1 to rotate.

[0042] Embodiment 2

[0043] The structure and principle of the second embodiment are basically the same as those of the first embodiment, and the only difference is that the projection length of the spiral ridge 61 in the radial direction of the cutter head 6 is equal to the trough spacing of the corrugated tube 5. Each time a spiral ridge 61 is rotated, the corrugated tube 5 is driven to axially feed a trough, and each trough is provided with four grooves.

[0044] Embodiment 3

[0045] The structure and principle of the third embodiment are basically the same as those of the first embodiment, and the only difference is that three planetary gears 2 are provided on the planetary frame 1, and the projected length of each spiral ridge 61 in the radial direction of the cutter disc 6 is twice the trough spacing of the bellows 5. Each time a spiral ridge 61 is rotated, the bellows 5 is driven to axially feed two troughs, and three grooves are provided on the troughs every other trough. The planetary frame 1 is a Y-shaped frame, and the three disc shafts 6 are respectively installed between the opposite ends of the two Y-shaped frames.

[0046] Embodiment 4

[0047] The structure and principle of the third embodiment are basically the same as those of the first embodiment, and the only difference is that three planetary wheels 2 are provided on the planetary frame 1, and the projected length of the spiral ridge 61 in the radial direction of the cutter disc 6 is equal to the trough spacing of the bellows 5. Each time a spiral ridge 61 is rotated, the bellows 5 is driven to axially feed a trough, and three grooves are provided on each trough. The planetary frame 1 is a Y-shaped frame, and the three disc shafts 6 are respectively installed between the opposite ends of two Y-shaped frames.

[0048] Embodiment 5

[0049] The structure and principle of the fifth embodiment are basically the same as those of the first embodiment, and the only difference is that:

[0050] A cutter disc 6 is respectively provided on two disc shafts 4 located on a diagonal line;

[0051] A guide disk is provided on each of the two disk shafts 4 located on the other diagonal line. The guide disk is provided with a spiral ridge 61, an arcuate straight ridge 62 and a transition ridge 63 connected between adjacent arcuate straight ridges 62. All the spiral ridges 61 are on the same spiral. The distances between two adjacent spiral ridges 61 are equal. The number of arcuate straight ridges 62 and the slotting cutter are equal and their positions correspond. All the arcuate straight ridges 62 are arranged along the same spiral direction.

[0052] The radial projection length of the spiral ridges 61 on the cutter disc 6 and the guide disc is twice the wave trough spacing of the corrugated tube 5 .

[0053] When grooving the bellows 5, the spiral ridges 61 on the cutter disc 6 and the limit disc extend into the troughs of the bellows 5 respectively, and at the same time drive the bellows 5 to feed axially. Every time the spiral ridge 61 rotates, the bellows 5 is driven to feed axially two troughs, and two grooves are opened on the trough every other trough.

[0054] Embodiment 6

[0055] The structure and principle of the fifth embodiment are basically the same as those of the first embodiment, and the only difference is that:

[0056] A cutter disc 6 is respectively provided on two disc shafts 4 located on a diagonal line;

[0057] A guide disk is provided on each of the two disk shafts 4 located on the other diagonal line. The guide disk is provided with a spiral ridge 61, an arcuate straight ridge 62 and a transition ridge 63 connected between adjacent arcuate straight ridges 62. All the spiral ridges 61 are on the same spiral. The distances between two adjacent spiral ridges 61 are equal. The number of arcuate straight ridges 62 and the slotting cutter are equal and their positions correspond. All the arcuate straight ridges 62 are arranged along the same spiral direction.

[0058] The projected length of the spiral ridges 61 on the cutter disc 6 and the guide disc in the radial direction of the cutter disc 6 is equal to the trough spacing of the corrugated tube 5 .

[0059] When grooving the bellows 5, the spiral ridges 61 on the cutter disc 6 and the limit disc extend into the troughs of the bellows 5 respectively, and at the same time drive the bellows 5 to feed axially. Every time the spiral ridge 61 rotates, the bellows 5 is driven to feed axially one trough, and each trough is provided with two grooves.

[0060] The above are examples of the best implementation of the present invention, and the parts not described in detail are common knowledge of ordinary technicians in the field. The protection scope of the present invention shall be based on the content of the claims, and any equivalent transformation based on the technical enlightenment of the present invention is also within the protection scope of the present invention.

Claims

1. A planetary spiral grooving device for a bellows, characterized in that: include: A planetary gear mechanism, the planetary gear mechanism comprising a planetary carrier driven to rotate by a power device, planetary wheels rotatably mounted on the planetary carrier, and a fixed inner gear ring, the planetary wheels meshing with the inner gear ring, three or four planetary wheels are provided, the planetary wheels are evenly distributed along the circumferential direction, each of the planetary wheels is respectively mounted on a disc shaft, the disc shaft is mounted on the planetary carrier, and a tube cone is provided at the center of the planetary carrier for the corrugated tube to pass through; A cutter disc, each of which is provided on the disc shaft, and the cutter disc is provided with spiral ridges, arcuate straight ridges and transition ridges connected between adjacent arcuate straight ridges, all of which are on the same spiral, and the distances between two adjacent spiral ridges are equal. Only in one circle of the spiral, a slotting knife is provided between two adjacent spiral ridges, the number of the arcuate straight ridges is equal to that of the slotting knife and their positions correspond, and all of which are arranged along the same spiral direction.

2. The planetary spiral grooving device for a bellows according to claim 1, characterized in that: There are three planetary wheels, and the projection length of each spiral ridge in the radial direction of the cutter disc is twice the trough spacing of the corrugated tube.

3. The planetary spiral grooving device for a bellows according to claim 1, characterized in that: There are three planetary wheels, and the projection length of each spiral ridge in the radial direction of the cutter disc is equal to the trough spacing of the corrugated tube.

4. The planetary spiral grooving device for a bellows according to claim 1, characterized in that: There are four planetary wheels, and the projection length of each spiral ridge in the radial direction of the cutter disc is twice the trough spacing of the corrugated tube.

5. The planetary spiral grooving device for a bellows according to claim 1, characterized in that: There are four planetary wheels, and the projection length of the spiral ridge in the radial direction of the cutter disc is equal to the trough spacing of the corrugated tube.

6. The planetary spiral grooving device for a corrugated pipe according to claim 2 or 3, characterized in that: The planetary gear mechanism is provided with two sets, the planetary frame is a Y-shaped frame, the three disc shafts are installed between the opposite ends of the two Y-shaped frames, and the centers of the two Y-shaped frames are respectively provided with a tube cone.

7. The planetary spiral grooving device for a corrugated pipe according to claim 4 or 5, characterized in that: The planetary gear mechanism is provided with two sets, the planet carrier is a cross, the four disc shafts are installed between the opposite ends of the two crosses, and the centers of the two crosses are respectively provided with a tube cone.

8. A planetary spiral grooving device for a bellows, characterized in that: include: A planetary gear mechanism, the planetary gear mechanism comprising a planetary carrier driven to rotate by a power device, planetary wheels rotatably mounted on the planetary carrier, and a fixed inner gear ring, the planetary wheels meshing with the inner gear ring, four planetary wheels are provided, the planetary wheels are evenly distributed along the circumferential direction, each of the planetary wheels is respectively mounted on a disc shaft, four of the disc shafts are mounted on the planetary carrier, and a tube cone is provided at the center of the planetary carrier for the corrugated tube to pass through; A cutter disc, wherein each of the two disc shafts located on a diagonal line is provided with a cutter disc, wherein the cutter disc is provided with spiral ridges, arcuate straight ridges and transition ridges connected between adjacent arcuate straight ridges, wherein all the spiral ridges are on the same spiral, and the distances between two adjacent spiral ridges are equal, and only in one circle of the spiral are slotting knives respectively provided between two adjacent spiral ridges, wherein the number of the arcuate straight ridges is equal to that of the slotting knives and their positions correspond, and wherein all the arcuate straight ridges are arranged along the same spiral direction; A guide plate, wherein the two plate shafts located on the other diagonal line are respectively provided with a guide plate, the guide plate is provided with spiral ridges, arc-shaped straight ridges and transition ridges connected between adjacent arc-shaped straight ridges, all of the spiral ridges are on the same spiral, the distances between two adjacent spiral ridges are equal, the number of the arc-shaped straight ridges is equal to that of the slotting knife and their positions correspond, and all of the arc-shaped straight ridges are arranged along the same spiral direction.

9. The planetary spiral grooving device for a corrugated pipe according to claim 1 or 8, characterized in that: A conical guide sleeve is arranged on the pipe passing cone.

10. The planetary spiral grooving device for a corrugated pipe according to claim 1 or 8, characterized in that: A driven driving wheel is fixed to the planet carrier, and the driven driving wheel is meshed with an active driving wheel, and the active driving wheel is driven by the power device.

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