Pipe cutting device for child game bed and child game bed

Abstract

The invention relates to a pipe cutting device for a child game bed, and relates to the technical field of pipe cutting, the pipe cutting device comprises a machine body, a table top is arranged on the machine body, a cutting assembly and a bending assembly are installed on the table top, and the cutting assembly is installed on the table top at the end close to the length direction of the table top; the bending assembly comprises a bending table, a plurality of bending wheel sets and a guide rod, the end, close to the width direction of the table top, of the bending table is vertically installed on the table top, the bending wheel sets are evenly arranged in the length direction of the table top, and each bending wheel set comprises an upper wheel and a lower wheel which are rotationally arranged on the bending table; the upper wheels and the lower wheels are arranged in a spaced mode, the guide rod is installed on the bending table, the guide rod penetrates through the positions between the upper wheels and the lower wheels of all the bending wheel sets, the guide rod is a bending rod, all the bending wheel sets are arranged on the bending table along the bending radian of the guide rod, and the effect of reducing the probability of creases when metal pipes are bent is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of pipe cutting, in particular to a pipe cutting device for children's play beds. BACKGROUND

[0002] A children's play bed is a kind of furniture suitable for children, and its design purpose is to provide a place for children to sleep and play at the same time, and the combination of the sleeping place and the playground can improve the space utilization.

[0003] The existing children's play bed forms a frame by welding metal pipes, and forms a bed body by installing elastic rubber bands on the frame, then places a mattress on the bed body for children to sleep, and according to actual needs, an installation rack with toys is arranged on the bed body for children to play. In order to attract children, the bed body of the existing children's play bed is made into various shapes, so the metal pipes welded into the frame also need to be appropriately bent. Since the metal pipe is hollow, the hollow area is easily compressed and deformed when bent, thereby forming a crease. The existence of the crease will damage the overall structural strength of the metal pipe. SUMMARY

[0004] In order to reduce the probability of creases occurring when the metal pipe is bent, the present application provides a pipe cutting device for children's play beds.

[0005] The pipe cutting device for children's play beds provided by the present application adopts the following technical solution: A pipe cutting device for children's play beds, comprising a machine body, a table top is arranged on the machine body, a cutting assembly and a bending assembly are installed on the table top, the cutting assembly is installed on the table top near one end in the length direction, the bending assembly comprises a bending table, a plurality of bending wheel groups and a guide rod, the bending table is vertically installed on the table top near one end in the width direction, the plurality of bending wheel groups are evenly arranged along the length direction of the table top, and each bending wheel group comprises an upper wheel and a lower wheel rotatably arranged on the bending table. The upper wheel and the lower wheel are arranged in a gap, the guide rod is installed on the bending table, the guide rod passes through between the upper wheels and the lower wheels of all the bending wheel groups, the guide rod is a bending rod, and all the bending wheel groups are arranged on the bending table along the bending radius of the guide rod.

[0006] By adopting the above technical solution, the metal pipe is bent by different radii of the plurality of bending wheel groups, and the guide rod is inserted into the metal pipe when the metal pipe is bent, thereby reducing the probability of creases occurring when the metal pipe is bent.

[0007] Optionally, the cutting assembly comprises a mounting table and a cutter, the mounting table is slidingly arranged on the table top, and the cutter is installed on the mounting table. The mounting table drives the cutter to slide towards or away from the bending table.

[0008] Optionally, the mounting table comprises a sliding part and a rotating part, the sliding part is slidingly arranged on the table top, and the rotating part is rotatably arranged on the sliding part, and the cutter is mounted on the rotating part.

[0009] Optionally, the bending table is provided with a mounting block, the guide rod is detachably mounted on the mounting block, and each group of the bending wheel group and the bending table is provided with an adjusting piece.

[0010] Optionally, the adjusting piece comprises an adjusting groove and an adjusting block, the adjusting groove is arranged on the bending table, and the adjusting block is slidingly arranged in the adjusting groove.

[0011] Optionally, the table top is provided with a sliding piece, the mounting block is mounted on the sliding piece, and the sliding piece drives the mounting block to slide towards the bending table.

[0012] Optionally, the bending table is provided with an insertion rod, the insertion rod is inserted into the mounting block, and the mounting block is slidingly arranged on the insertion rod.

[0013] Optionally, the insertion rod is provided with a guide groove, the mounting block is fixedly provided with a guide block, the guide block is slidingly arranged in the guide groove, and the mounting block is slidingly and hingedly arranged on the sliding piece.

[0014] Optionally, a guide plate is arranged on the side of the table top away from the bending table in the width direction of the table top, and the guide plate is inclined outwardly from the table top.

[0015] A children's play bed comprises a frame formed by welding metal pipes cut by a pipe cutting device, the frame is circular, the bottom of the frame is provided with supporting legs, elastic rubber bands are arranged on the frame, a mattress is placed on the elastic rubber bands, and a mounting rack is arranged on the frame.

[0016] By adopting the above technical scheme, the frame is formed by welding the curved metal pipes into a circular shape, so that the overall play bed is more smooth and the probability of safety accidents is reduced.

[0017] In summary, the present application has at least one of the following beneficial technical effects: 1. The metal tube is passed through multiple sets of bending wheels, which bend the metal tube through a set arc. While the metal tube is bending, a guide rod is inserted into the metal tube to guide and transport the metal tube. The guide rod can not only assist in the bending of the metal tube, but also limit the deformation of the metal tube to reduce excessive bending of the metal tube, thereby reducing the probability of creases when the metal tube is bent. Creases on the metal tube are easy to bend along the creases when the metal tube is subjected to force. The presence of creases greatly reduces the force required to bend the metal tube, resulting in a decrease in the metal tube's anti-bending ability. By reducing the occurrence of creases, the metal tube's anti-bending ability can be improved, and the probability of stress deformation of the children's playbed made of metal tube can be reduced. 2. The rotating part adjusts the cutting angle of the cutter to cut the metal pipe, thereby cutting different sections according to actual needs. After the angle of the rotating part is adjusted, it is fixed to the sliding part by bolts; 3. By replacing the guide rod, it can be applied to metal pipes with different inner diameters. By replacing the guide rods with different bending degrees, the metal pipes can be bent with different curvatures. By driving the adjustment member to adjust the distance between the upper and lower wheels, it can be applied to metal pipes with different outer diameters. By adjusting the entire bending wheel assembly, it can adapt to guide rods with different bending degrees, thereby improving the applicability of the bending assembly. The installation of the mounting block is also an important structure for limiting the metal pipe. A push switch can be installed on the mounting block to cooperate with the sliding start of the mounting platform. 4. The guide rod is driven away from the bending wheel assembly by the sliding member, thereby facilitating the replacement of the guide rod. At the same time, after the metal pipe is cut, the guide rod can be driven away from the bending wheel assembly to facilitate the unloading of the cut metal pipe. 5. When the sliding member drives the mounting block to slide away from the bending wheel set, the mounting block slides and rotates on the sliding member under the guidance of the guide block and the bottom of the guide groove, thereby causing the end of the guide rod away from the mounting block to tilt toward the table surface, so that the cut metal pipe can slide and fall along the guide rod under the action of its own gravity, thereby facilitating the unloading of the metal pipe. When the sliding member drives the mounting block to slide toward the bending wheel set, the mounting block is reset under the guidance of the guide block and the guide groove and inserted between the upper wheel and the lower wheel; 6. The support block adjusts the support position by sliding when the metal tube is sleeved on the guide rod and bends. After the metal tube is cut, it is reset by the return spring. At the same time, the elastic force of the return spring can also drive the metal tube to slide away from the guide rod for cutting. 7. The round frame is made by welding the bent metal tubes to make the playbed smoother and reduce the probability of safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application.

[0019] Figure 2 yes Figure 1 Magnified view of part A in the middle.

[0020] Figure 3 yes Figure 1 Magnified view of part B in the middle.

[0021] Figure 4 It is a structural diagram of the children's playbed of the present application.

[0022] Figure 5 It is a schematic diagram of the overall structure of Example 2 of the present application.

[0023] Figure 6 It is a schematic diagram of the connection structure between the support block and the abutment ring.

[0024] In the figure, 1. machine body; 2. table; 3. cutting assembly; 31. mounting table; 311. sliding part; 312. rotating part; 32. cutter; 4. bending assembly; 41. bending table; 42. bending wheel group; 421. upper wheel; 422. lower wheel; 43. guide rod; 5. mounting block; 6. adjusting member; 61. adjusting slot; 62. adjusting block; 7. sliding member; 8. insertion rod; 9. guide slot; 10. guide block; 11. guide plate; 12. support block; 13. reset spring; 14. clamping block; 15. clamping slot; 16. pressing block; 17. trigger block; 18. frame; 19. support leg; 20. elastic rubber band; 21. mattress; 22. mounting frame; 23. multi-pass sleeve; 24. limiting ring. DETAILED DESCRIPTION

[0025] The following is combined with Figures 1-6 The present application is further described with reference to the following specific examples: First of all, it should be noted that in the description of this application, if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and other directional words appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of this application; in addition, if the terms "first", "second", "third" and other numerical quantifiers appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", and "connected" appear, they should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an interference fit, a transition fit and other limited connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium; therefore, for ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. Example 1

[0026] The embodiment of the present application discloses a pipe cutting device for children's playpen, referring to Figure 1 , comprising a machine body 1, a horizontal table top 2 is arranged on the machine body 1, a cutting assembly 3 for cutting metal pipes and a bending assembly 4 for bending metal pipes are installed on the table top 2, the cutting assembly 3 is installed on the table top 2 near one end in the length direction, the bending assembly 4 comprises a bending table 41, a bending wheel set 42 and a guide rod 43, the bending table 41 is vertically installed on the table top 2 near one end in the width direction, the bending wheel set 42 is arranged in several groups, seven groups of the bending wheel set 42 are arranged in the embodiment, the seven groups of the bending wheel set 42 are evenly arranged along the length direction of the table top 2, the bending wheel set 42 comprises an upper wheel 421 and a lower wheel 422 which are rotatably arranged on the bending table 41, the upper wheel 421 and the lower wheel 422 of each group of the bending wheel set 42 are gap arranged, the guide rod 43 is installed on the bending table 41, the guide rod 43 passes through between the upper wheels 421 and the lower wheels 422 of all the bending wheel sets 42, the guide rod 43 is a bending rod, all the bending wheel sets 42 are arranged on the bending table 41 along the bending radian of the guide rod 43, the metal pipe is passed through between the groups of the bending wheel set 42, the groups of the bending wheel set 42 bend the metal pipe through the radian arranged, the guide rod 43 is inserted into the metal pipe to guide and convey the metal pipe while the metal pipe is bent, the guide rod 43 can assist the bending of the metal pipe and limit the deformation amount of the metal pipe to reduce excessive bending of the metal pipe, so as to reduce the probability of creases of the metal pipe when the metal pipe is bent, the creases on the metal pipe are easy to bend along the creases when the metal pipe is stressed, the existence of the creases greatly reduces the force required for bending the metal pipe, so as to cause the bending resistance of the metal pipe to decrease, the bending resistance of the metal pipe can be improved and the probability of stress deformation of the children's playpen made of the metal pipe can be reduced by reducing the generation of the creases.

[0027] Refer to Figure 1The cutting assembly 3 comprises a mounting table 31 and a cutter 32. The mounting table 31 is slidingly arranged on the table top 2. The cutter 32 is mounted on the mounting table 31. The mounting table 31 drives the cutter 32 to slide towards the bending table 41 or away from the bending table 41. In the embodiment, the cutter 32 is a saw blade. A motor is mounted on the mounting table 31. The motor drives the saw blade to rotate to cut the metal pipe. A protective cover is mounted on the mounting table 31. The protective cover is sleeved on the cutter 32 and is provided with an opening to enable the cutter 32 to cut the metal pipe. The sliding of the mounting table 31 can be driven by an electric cylinder or manually. If the sliding is manually driven, a handle for gripping is needed. In the embodiment, the mounting table 31 is driven by a rodless electric cylinder. The mounting table 31 comprises a sliding part 311 and a rotating part 312. The sliding part 311 is mounted on the sliding table of the rodless electric cylinder and is slidingly arranged on the table top 2 by the rodless electric cylinder. The rotating part 312 is rotationally arranged on the sliding part 311. The cutter 32, the protective cover and the motor for driving the cutter 32 are all mounted on the rotating part 312. The rotating part 312 adjusts the angle of the cutter 32 for cutting the metal pipe, so that different cutting surfaces can be cut according to actual needs. After the angle of the rotating part 312 is adjusted, the rotating part 312 is fixed on the sliding part 311 by bolts.

[0028] With reference to Figure 1 and Figure 2 The bending table 41 is provided with a mounting block 5. The guide rod 43 is detachably mounted on the mounting block 5. Each set of bending wheel set 42 and the bending table 41 are provided with an adjusting piece 6. The adjusting piece 6 adjusts the distance between the upper wheel 421 and the lower wheel 422 and adjusts the position of the bending wheel set 42 on the bending table 41. The guide rod 43 can be replaced to be suitable for metal pipes with different inner diameters. The guide rod 43 with different bending degrees can be replaced to bend the metal pipe with different bending degrees. The distance between the upper wheel 421 and the lower wheel 422 is adjusted by the adjusting piece 6 to be suitable for metal pipes with different outer diameters. The bending wheel set 42 as a whole is adjusted to be suitable for the guide rod 43 with different bending degrees, so as to improve the application range of the bending assembly 4. The mounting block 5 is also an important structure for limiting the metal pipe. A pressing switch can be mounted on the mounting block 5 to cooperate with the sliding of the mounting table 31. The adjusting piece 6 comprises an adjusting groove 61 and an adjusting block 62. The adjusting groove 61 is a groove body with a T-shaped cross section. The adjusting block 62 is a block body with a T-shaped cross section. The adjusting groove 61 is arranged on the bending table 41. The adjusting block 62 is slidingly arranged in the adjusting groove 61. The adjusting block 62 is provided with two blocks. The upper wheel 421 and the lower wheel 422 are rotationally arranged on the two adjusting blocks 62, respectively. The adjusting block 62 is threadedly connected with a fixing bolt. The fixing bolt penetrates through the adjusting block 62 and abuts against the groove bottom of the adjusting groove 61. The adjusting block 62 is fixed in the adjusting groove 61 by tightening the fixing bolt. The adjusting block 62 can slide in the adjusting groove 61 by loosening the fixing bolt.

[0029] With reference to Figure 1 andFigure 3 The sliding part 7 is installed on the table 2, and in this embodiment, the sliding part 7 is a rodless cylinder. The sliding part 7 is installed on the table 2 through the mounting frame 22 installed on the table 2. The mounting block 5 is installed on the sliding part 7. The sliding part 7 drives the mounting block 5 to slide towards the bending table 41 or away from the bending table 41. The sliding part 7 drives the mounting block 5 to drive the guide rod 43 away from the bending wheel set 42, so as to facilitate the replacement of the guide rod 43. After the metal pipe is cut, the guide rod 43 is driven away from the bending wheel set 42, so as to facilitate the unloading of the cut metal pipe. The insertion rod 8 is installed on the bending table 41. The insertion rod 8 is inserted into the mounting block 5. The mounting block 5 is slidably arranged on the insertion rod 8. The insertion rod 8 can guide the sliding of the mounting block 5, so that the sliding of the mounting block 5 is smoother. The guide groove 9 is formed in the insertion rod 8. The guide block 10 is fixedly arranged on the mounting block 5. The guide block 10 is slidably arranged in the guide groove 9. The mounting block 5 is slidably and hingedly arranged on the sliding part 7. When the sliding part 7 drives the mounting block 5 to slide away from the bending wheel set 42, the mounting block 5 slides and rotates on the sliding part 7 under the guidance of the guide block 10 and the bottom of the guide groove 9. Thus, the end of the guide rod 43 away from the mounting block 5 is inclined towards the table 2. The cut metal pipe can slide and fall along the guide rod 43 under the action of its own gravity. Thus, the unloading of the metal pipe is facilitated. When the sliding part 7 drives the mounting block 5 to slide towards the bending wheel set 42, the mounting block 5 is reset and inserted between the upper wheel 421 and the lower wheel 422 under the guidance of the guide block 10 and the guide groove 9. The guide plate 11 is installed on the side of the table 2 away from the bending table 41 in the width direction. The guide plate 11 is inclined towards the outside of the table 2. The guide plate 11 can guide the unloaded metal pipe to the outside of the machine body 1. Thus, the accumulation of the metal pipe on the table 2 is reduced, so as to affect the subsequent normal processing. The metal pipe can be conveniently stored by placing a storage box outside the table 2.

[0030] A children's play bed, with reference to Figure 4 The frame 18 is circular and is formed by welding four cut metal pipes end to end. The four welds are covered with two four-way sleeves and two three-way sleeves. The frame 18 is provided with four feet 19, which are inserted into the four-way sleeves or the three-way sleeves. The frame 18 is provided with elastic rubber bands 20, on which a mattress 21 is placed. The frame 18 is provided with a mounting frame 22, which is an arc-shaped frame. The mounting frame 22 is inserted into the two four-way sleeves. The curved metal pipe welded into a circular frame 18 makes the play bed more smooth and reduces the probability of accidents.

[0031] The implementation principle of the embodiment of the application is that: according to the size of the curved metal pipe to be cut, a suitable guide rod 43 is selected, the overall position of the bending wheel set 42 is adjusted according to the guide rod 43, after the adjustment is completed, the guide rod 43 is arranged between the upper wheel 421 and the lower wheel 422 of the bending wheel set 42, the metal pipe is conveyed, the metal pipe slides along the guide rod 43 and is bent by the bending wheel set 42 cooperating with the guide rod 43, after the metal pipe abuts against the mounting block 5, the cutting assembly 3 is driven to cut the metal pipe, before cutting, the angle of the cutter 32 needs to be adjusted according to the required cutting seam, the cutting seam of the convenient splicing welding point is cut by adjusting the angle of the cutter 32, after the cutting is completed, the mounting block 5 is driven to slide by the sliding piece 7, the mounting block 5 rotates on the sliding piece 7 and slides in the sliding process, so as to drive the guide rod 43 to tilt towards the ground, the cut metal pipe slides away from the guide rod 43 under the action of its own gravity to be discharged, and then the metal pipe is guided out of the body 1 by the guide plate 11 and is stored in the storage box. Embodiment two

[0032] The difference between the embodiment and the embodiment one is that the discharging mechanism of the cut metal pipe is different.

[0033] Reference Figure 5 and Figure 6The sliding part 7 is installed on the table 2, and a rodless cylinder is selected in the embodiment. The sliding part 7 is installed on the table 2 through the mounting frame 22 installed on the table 2. The mounting block 5 is installed on the sliding part 7. The sliding part 7 drives the mounting block 5 to slide towards the direction of approaching or moving away from the bending table 41. The sliding part 7 drives the mounting block 5 to drive the guide rod 43 to move away from the bending wheel set 42, so as to facilitate the replacement of the guide rod 43, and also facilitate the unloading of the cut metal pipe by driving the guide rod 43 to move away from the bending wheel set 42 after the cutting of the metal pipe. The support block 12 is sleeved on the guide rod 43 and slides along the guide rod 43. One end of the support block 12 abuts against the bending table 41. The reset spring 13 is sleeved on the guide rod 43. One end of the reset spring 13 abuts against the mounting block 5, and the other end abuts against the support block 12. The support block 12 can support the guide rod 43 when the guide rod 43 is not used, and improve the structural stability of the guide rod 43. The support block 12 adjusts the position of the support by sliding when the metal pipe is sleeved on the guide rod 43 for bending. The reset spring 13 is reset after the cutting of the metal pipe, and the elastic force of the reset spring 13 can also drive the metal pipe to slide away from the guide rod 43 for unloading. The limiting ring 24 is slidably arranged on the guide rod 43. The limiting ring 24 is fixed on the guide rod 43 by bolts. The position of the limiting ring 24 can be adjusted by loosening the bolts. The limiting ring 24 can limit the sliding position of the support block 12, so as to adjust the sliding position of the support block 12 according to the actual need of cutting the length of the metal pipe, thereby playing a positioning role. The clamping block 14 is slidably arranged on the limiting ring 24. The clamping groove 15 is arranged on the support block 12 corresponding to the clamping block 14. When the support block 12 abuts against the limiting ring 24, the clamping block 14 is inserted into the clamping groove 15 to limit the separation of the support block 12, so as to fix the elastic force of the reset spring 13 and reduce the influence of the elastic force on the metal pipe during cutting. The pressing block 16 is arranged on the limiting ring 24 and is fixedly connected to the clamping block 14. The clamping block 14 is driven to slide away from the clamping groove 15 by driving the pressing block 16. The trigger block 17 is arranged on the table 2. When the sliding part 7 drives the mounting block 5 to slide towards the direction of moving away from the bending table 41, the trigger block 17 abuts against the pressing block 16 to drive the pressing block 16 to slide. At this time, the clamping block 14 is separated from the clamping groove 15, the elastic force of the reset spring 13 is released, and the support block 12 is driven to slide away from the guide rod 43 for unloading under the action of the elastic force of the reset spring 13.

[0034] The implementation principle of the embodiment of the application is that: according to the size of the curved metal pipe to be cut, a suitable guide rod 43 is selected, the overall position of the bending wheel set 42 is adjusted according to the guide rod 43, the position of the limiting ring 24 is adjusted according to the length of the metal pipe required, after the adjustment is completed, the guide rod 43 is arranged between the upper wheel 421 and the lower wheel 422 of the bending wheel set 42, the metal pipe is conveyed, the metal pipe slides along the guide rod 43 and is bent by the bending wheel set 42 cooperating with the guide rod 43, at the same time, the driving support block 12 slides and compresses the reset spring 13, after the metal pipe drives the driving support block 12 to abut against the limiting ring 24, the clamping block 14 is inserted into the clamping groove 15 to fix the support block 12, the cutting assembly 3 is driven to cut the metal pipe, before cutting, the angle of the cutter 32 needs to be adjusted according to the required cutting seam, the cutting seam of the convenient splicing welding point is cut by adjusting the angle of the cutter 32, after the cutting is completed, the mounting block 5 is driven to slide by the sliding piece 7, after the mounting block 5 slides away from the bending wheel set 42, the pressing block 16 abuts against the trigger block 17, the clamping block 14 is separated from the clamping groove 15, the support block 12 slides and resets under the elastic force of the reset spring 13, and the cut metal pipe is driven to slide away from the guide rod 43 under the driving of the support block 12 to be discharged, then the guide plate 11 guides the metal pipe out of the body 1 into the storage box for storage.

[0035] It should be noted that: the above embodiments are only used to illustrate the application and not to limit the technical solutions described in the application, although the application has been described in detail with reference to the above embodiments, those skilled in the art should understand that the skilled in the art can still modify or equivalently replace the application, and all technical solutions and improvements which do not deviate from the spirit and scope of the application should be covered in the scope of the claims of the application.

Claims

1. A pipe cutting device for a children's playbed, characterized in that: The invention comprises a machine body (1), wherein a table (2) is provided on the machine body (1), and a cutting assembly (3) and a bending assembly (4) are installed on the table (2), wherein the cutting assembly (3) is installed on the table (2) near one end in the longitudinal direction of the table (2), and the bending assembly (4) comprises a bending table (41), a bending wheel group (42) and a guide rod (43), wherein the bending table (41) is vertically installed on the table (2) near one end in the width direction of the table (2), and the bending wheel group (42) is provided in a plurality of groups, and the plurality of bending wheel groups (42) are arranged along the The table top (2) is evenly arranged in the longitudinal direction. The bending wheel group (42) includes an upper wheel (421) and a lower wheel (422) rotatably arranged on the bending table (41). The upper wheel (421) and the lower wheel (422) are arranged with a gap. The guide rod (43) is installed on the bending table (41). The guide rod (43) passes between the upper wheel (421) and the lower wheel (422) of all the bending wheel groups (42). The guide rod (43) is a curved rod. All the bending wheel groups (42) are arranged on the bending table (41) along the curved arc of the guide rod (43).

2. The pipe cutting device for a children's playbed according to claim 1, characterized in that: The cutting assembly (3) comprises a mounting platform (31) and a cutter (32); the mounting platform (31) is slidably arranged on the table surface (2); the cutter (32) is mounted on the mounting platform (31); and the mounting platform (31) drives the cutter (32) to slide toward or away from the bending platform (41).

3. The pipe cutting device for a children's playbed according to claim 2, characterized in that: The mounting platform (31) comprises a sliding portion (311) and a rotating portion (312); the sliding portion (311) is slidingly arranged on the platform (2); the rotating portion (312) is rotatably arranged on the sliding portion (311); and the cutter (32) is mounted on the rotating portion (312).

4. The pipe cutting device for a children's playbed according to claim 3, characterized in that: A mounting block (5) is provided on the bending table (41), and the guide rod (43) is detachably mounted on the mounting block (5). An adjusting member (6) is provided between each set of the bending wheel group (42) and the bending table (41), and the adjusting member (6) adjusts the distance between the upper wheel (421) and the lower wheel (422) and adjusts the position of the bending wheel group (42) on the bending table (41).

5. The pipe cutting device for a children's playbed according to claim 4, characterized in that: The adjusting member (6) comprises an adjusting groove (61) and an adjusting block (62); the adjusting groove (61) is provided on the bending table (41); the adjusting block (62) is slidably arranged in the adjusting groove (61); two adjusting blocks (62) are provided; an upper wheel (421) and a lower wheel (422) are rotatably arranged on the two adjusting blocks (62), respectively.

6. The pipe cutting device for a children's playbed according to claim 5, characterized in that: A sliding member (7) is installed on the tabletop (2), and the mounting block (5) is installed on the sliding member (7). The sliding member (7) drives the mounting block (5) to slide toward or away from the bending table (41).

7. The pipe cutting device for a children's playbed according to claim 6, characterized in that: An insertion rod (8) is installed on the bending platform (41), the insertion rod (8) is inserted into the mounting block (5), and the mounting block (5) is slidably mounted on the insertion rod (8).

8. The pipe cutting device for a children's playbed according to claim 7, characterized in that: A guide groove (9) is provided on the insertion rod (8), a guide block (10) is fixed on the installation block (5), the guide block (10) is slidably arranged in the guide groove (9), and the installation block (5) slides and is hinged to the sliding member (7).

9. The pipe cutting device for a children's playbed according to claim 8, characterized in that: A guide plate (11) is installed on a side of the table top (2) away from the bending table (41) in the width direction, and the guide plate (11) is inclined toward the outside of the table top (2).

10. A children's playbed comprising a frame (18) formed by welding metal tubes cut by the tube cutting device according to claim 9, characterized in that: The frame (18) is circular, a support foot (19) is installed at the bottom of the frame (18), an elastic rubber band (20) is placed on the frame (18), a mattress (21) is placed on the elastic rubber band (20), and a mounting frame (22) is provided on the frame (18).

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