Bending device for saliva suction tube production

By designing a bending device with a plug-in bending head and a driving mechanism, the problems of complex structure and poor adaptability of existing equipment have been solved, enabling rapid replacement and efficient production of saliva suction tubes, and reducing costs and labor intensity.

CN224074983UActive Publication Date: 2026-04-03CHANGZHOU ENOBELL MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-27
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing saliva straw production equipment is complex in structure, expensive, and poorly adaptable to different specifications of saliva straws. Manual bending is inefficient, produces inconsistent quality, and is labor-intensive.

Method used

A bending device comprising a base, a movable base, a bending assembly, a displacement assembly, and a rotation assembly has been designed. It achieves quick replacement and precise bending through a plug-in bending head structure and a drive mechanism, adapting to the production needs of multiple specifications.

Benefits of technology

It enables quick replacement of bending heads, reduces labor intensity, improves production efficiency and product quality consistency, and reduces production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a bending device for saliva suction tube production, which comprises a base, a movable base station and a bending component, and the movable base station slides on the base; the bending assembly comprises a placing table, a rotating shaft, a movable head and a bending piece, the placing table is fixedly installed on the movable base table, the rotating shaft rotates on the placing table, the movable head is installed on the rotating shaft, a movable cavity is formed in the movable head, the bending piece comprises a bending rod and a bending head, and the bending head is connected with the bending rod. The bending rod is mounted in the movable cavity, and the bending head is mounted at the top of the bending rod; and the movable head is suitable for driving the bending head to rotate so as to bend the saliva suction tube which is clamped externally. The device can be used for conveniently replacing the bending head, has better adaptability and simple operability so as to adapt to quick adjustment and production of saliva suction tubes with different specifications, and can be used for reducing the labor intensity and reducing the production cost.
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Description

Technical Field

[0001] This utility model relates to a bending device for the production of saliva straws, belonging to the technical field of saliva straw production equipment. Background Technology

[0002] Saliva suction tubes are a common tool in oral healthcare, used to remove saliva and other fluids from a patient's mouth during dental treatment. To ensure flexibility and comfort during use, the end of the suction tube needs precise bending. Traditionally, saliva suction tube bending has relied primarily on manual operation. This method is not only inefficient, but also makes it difficult to guarantee the accuracy of the bending angle and position, easily leading to inconsistent product quality. Furthermore, manual bending is labor-intensive and has high production costs.

[0003] With the development of automation technology, some automated equipment for bending saliva straws has appeared on the market. However, these devices are usually complex in structure, expensive, and have poor adaptability to different specifications of saliva straws. The adjustment process when changing specifications is cumbersome and cannot meet the needs of rapid and ever-changing production. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a bending device for the production of saliva straws. It can easily replace the bending head, has good adaptability and simple operation, so as to adapt to the rapid adjustment and production of saliva straws of different specifications, reduce labor intensity and reduce production costs.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a bending device for saliva straw production, comprising:

[0006] Base;

[0007] A movable base, which slides on the base;

[0008] A bending assembly includes a placement platform, a rotating shaft, a movable head, and a bending component. The placement platform is fixedly installed on the movable base, the rotating shaft rotates on the placement platform, the movable head is installed on the rotating shaft, and the movable head has a movable cavity. The bending component includes a bending rod and a bending head, the bending rod is installed in the movable cavity, and the bending head is installed on the top of the bending rod.

[0009] The movable head is adapted to drive the bending head to rotate in order to bend the externally clamped saliva tube.

[0010] Furthermore, to facilitate the replacement of bending heads of different specifications, a mounting block is installed on the top of the bending rod. The mounting block has a mounting cavity and a fixing hole, and the axis of the mounting cavity and the axis of the fixing hole are perpendicular to each other.

[0011] The bending head is adapted to be installed on the mounting block, and the bending head includes a bending part and a mounting part, wherein the mounting part is provided with a mounting hole;

[0012] After the bending head is installed in place, the mounting part is arranged in the mounting cavity so that the mounting hole and the fixing hole are positioned in the same position.

[0013] Furthermore, in order to ensure the connection stability of the bending head, the bending assembly also includes a first fastener, which is adapted to pass through the fixing hole and the mounting hole to lock the bending head onto the mounting block.

[0014] Furthermore, to facilitate the adjustment of the movable base, a bending device for saliva tube production also includes a displacement assembly, which includes a first displacement support, a second displacement support, at least one auxiliary roller and at least one threaded roller, wherein the first displacement support and the second displacement support are both mounted on the base.

[0015] The auxiliary roller is parallel to the threaded roller;

[0016] One end of the auxiliary roller is mounted on the first displacement support, and the other end of the auxiliary roller is mounted on the second displacement support;

[0017] One end of the threaded roller is rotatably mounted on the first displacement support, and the other end of the threaded roller is rotatably mounted on the second displacement support.

[0018] Furthermore, the first displacement support is provided with a first bearing seat, and the second displacement support is provided with a second bearing seat;

[0019] The movable base is provided with at least one movable hole and a threaded hole that is adapted to engage with the threaded roller.

[0020] Furthermore, the displacement assembly also includes a drive mechanism, which includes a drive motor, a drive sprocket, a driven sprocket, and a synchronous chain. The drive motor is mounted on the base, the drive sprocket is rotatably mounted on the base, the movable end of the drive motor is connected to the drive sprocket, the driven sprocket is connected to the threaded roller, and the synchronous chain is adapted to connect the drive sprocket and the driven sprocket.

[0021] The drive motor drives the active sprocket to rotate, thereby driving the synchronous chain to move, which in turn drives the driven sprocket to rotate synchronously with the threaded roller, thus causing the movable base to slide on the base.

[0022] Furthermore, to facilitate the flexible rotation of the movable head, a bending device for saliva tube production also includes a rotating assembly. The rotating assembly includes a rotating motor, a hinge seat, and a rotating connecting plate. The rotating motor is mounted on the placement platform, the hinge seat is mounted on the movable end of the rotating motor, one end of the rotating connecting plate is hinged to the hinge seat, and the other end of the rotating connecting plate is hinged to the rotating shaft.

[0023] Furthermore, a bending device for saliva tube production also includes at least one connecting plate, one end of which is mounted on the base, and the other end of which is adapted to be connected to an external frame.

[0024] After adopting the above technical solution, this utility model has the following beneficial effects:

[0025] 1. In this utility model, a matching bending head is selected according to the specifications of the saliva suction tube, its mounting part is inserted into the cavity of the mounting block, the mounting hole and the fixing hole are aligned and then the first fastener is screwed in to lock, the device is fixed to the production line frame through the connecting plate, the drive motor of the displacement component is started, the active sprocket drives the driven sprocket and the threaded roller to rotate through the synchronous chain, and drives the moving base to slide to the target position, so that the bending head is aligned with the section of the saliva suction tube to be processed, and the external clamp holds the saliva suction tube horizontally to ensure that the area to be bent is in contact with the bending part of the bending head;

[0026] The rotating motor starts, pushing the hinge seat to make a circular motion. The rotating connecting plate pulls the rotating shaft to rotate, causing the movable head and bending head to swing around the shaft. The bending head continuously applies pressure to plastically deform the saliva tube along the contour of the bending section until the preset bending angle is reached. Then, the drive motor reverses to reset, the rotating component returns to its original position, and the external clamp releases the finished tube.

[0027] 2. In this utility model, the bending head uses the plug-in structure of the mounting block and the bending rod to limit the bending rod by the mounting cavity and the fixing hole and lock it by the first fastener. The operator only needs to remove a single fastener to replace the bending head with different bending radii or shapes, which can meet the needs of multi-specification production.

[0028] The rotating motor drives the bending head to apply bending force to the saliva suction tube through the hinged seat and rotating connecting plate. The hinged structure effectively reduces motion inertia, ensures a smooth bending process, and avoids tube deformation or breakage. Attached Figure Description

[0029] Figure 1 This utility model relates to a three-dimensional bending device for saliva straw production. Figure 1 ;

[0030] Figure 2 This utility model relates to a three-dimensional bending device for saliva straw production. Figure 2 ;

[0031] Figure 3 This is a front view of a bending device for producing saliva straws according to the present invention;

[0032] Figure 4 This is a top view of a bending device for saliva straw production according to the present invention;

[0033] Figure 5 This is a left view of a bending device for producing saliva straws according to the present invention;

[0034] Figure 6 This is a schematic diagram of the mounting block and bending head of this utility model. Detailed Implementation

[0035] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0036] like Figure 1-6 As shown, a bending device for saliva straw production includes:

[0037] Base 1;

[0038] The movable base 2 slides on the base 1;

[0039] The bending assembly includes a placement platform 31, a rotating shaft 32, a movable head 33, and a bending component. The placement platform 31 is fixedly installed on the movable base 2, the rotating shaft 32 rotates on the placement platform 31, the movable head 33 is installed on the rotating shaft 32, and the movable head 33 has a movable cavity. The bending component includes a bending rod 34 and a bending head 35. The bending rod 34 is installed in the movable cavity, and the bending head 35 is installed on the top of the bending rod 34.

[0040] The movable head 33 is adapted to drive the bending head 35 to rotate in order to bend the externally clamped saliva tube.

[0041] Specifically, such as Figure 1-3 As shown, a mounting block 36 is installed on the top of the bent rod 34. The mounting block 36 has a mounting cavity and a fixing hole. The axis of the mounting cavity and the axis of the fixing hole are perpendicular to each other.

[0042] The bending head 35 is suitable for installation on the mounting block 36. The bending head 35 includes a bending part 351 and a mounting part 352. The mounting part 352 is provided with a mounting hole.

[0043] After the bending head 35 is installed in place, the mounting part 352 is set in the mounting cavity so that the mounting hole and the fixing hole are set in the same position.

[0044] Specifically, the bending assembly also includes a first fastener adapted to pass through the fixing hole and the mounting hole to lock the bending head 35 onto the mounting block 36.

[0045] In this embodiment, the first fastener is a fastening bolt.

[0046] Specifically, such as Figure 1-4 As shown, a bending device for saliva tube production also includes a displacement assembly, which includes a first displacement support 41, a second displacement support 42, at least one auxiliary roller 43 and at least one threaded roller 44. The first displacement support 41 and the second displacement support 42 are both mounted on the base 1.

[0047] The auxiliary roller 43 is parallel to the threaded roller 44;

[0048] One end of the auxiliary roller 43 is mounted on the first displacement support 41, and the other end of the auxiliary roller 43 is mounted on the second displacement support 42;

[0049] One end of the threaded roller 44 is rotatably mounted on the first displacement support 41, and the other end of the threaded roller 44 is rotatably mounted on the second displacement support 42.

[0050] Specifically, the first displacement support 41 is provided with a first bearing seat, and the second displacement support 42 is provided with a second bearing seat;

[0051] The movable base 2 is provided with at least one movable hole and a threaded hole that is adapted to mesh with the threaded roller 44.

[0052] Specifically, such as Figure 1-5 As shown, the displacement assembly also includes a drive mechanism, which includes a drive motor 51, a drive sprocket 52, a driven sprocket 53, and a synchronous chain 54. The drive motor 51 is mounted on the base 1, the drive sprocket 52 is rotatably mounted on the base 1, the movable end of the drive motor 51 is connected to the drive sprocket 52, the driven sprocket 53 is connected to the threaded roller 44, and the synchronous chain 54 is adapted to connect the drive sprocket 52 and the driven sprocket 53.

[0053] The drive motor 51 drives the active sprocket 52 to rotate, thereby driving the synchronous chain 54 to move, which in turn drives the driven sprocket 53 to rotate synchronously with the threaded roller 44, thus causing the movable base 2 to slide on the base 1.

[0054] In this embodiment, the drive motor 51 drives the active sprocket 52 to rotate counterclockwise, thereby driving the driven sprocket 53 to rotate counterclockwise through the synchronous chain 54, and driving the movable base 2 to move towards the second displacement support 42.

[0055] The drive motor 51 drives the active sprocket 52 to rotate clockwise, which in turn drives the driven sprocket 53 to rotate clockwise via the synchronous chain 54, thus moving the movable base 2 toward the first displacement support 41.

[0056] Specifically, such as Figure 1-4 As shown, a bending device for saliva tube production also includes a rotating assembly, which includes a rotating motor 61, a hinge seat 62, and a rotating connecting plate 63. The rotating motor 61 is mounted on a placement platform 31, the hinge seat 62 is mounted on the movable end of the rotating motor 61, one end of the rotating connecting plate 63 is hinged to the hinge seat 62, and the other end of the rotating connecting plate 63 is hinged to the rotating shaft 32.

[0057] Specifically, such as Figure 1-3 As shown, a bending device for saliva tube production also includes at least one connecting plate 7, one end of which is mounted on the base 1, and the other end of which is adapted to be connected to an external frame.

[0058] In this embodiment, a matching bending head 35 is selected according to the specifications of the saliva suction tube. Its mounting part 352 is inserted into the cavity of the mounting block 36. After aligning the mounting hole and the fixing hole, the first fastener is screwed in to lock it. The device is fixed to the production line frame through the connecting plate 7. The drive motor 51 of the displacement component is started. The active sprocket 52 drives the driven sprocket 53 and the threaded roller 44 to rotate through the synchronous chain 54. The moving base 2 is driven to slide to the target position so that the bending head 35 is aligned with the section of the saliva suction tube to be processed. The external clamp holds the saliva suction tube horizontally to ensure that the area to be bent is in contact with the bending part 351 of the bending head 35.

[0059] When the rotating motor 61 starts, it pushes the hinge seat 62 to make a circular motion. The rotating connecting plate 63 pulls the rotating shaft 32 to rotate, which drives the movable head 33 and the bending head 35 to swing around the axis. The bending head 35 continuously applies pressure to make the saliva tube plastically deform along the contour of the bending part 351 until the preset bending angle is reached. Then, the drive motor 51 reverses to reset, the rotating component returns to its position, and the external clamp releases the finished tube.

[0060] In this embodiment, the bending head 35 uses the plug-in structure of the mounting block 36 and the bending rod 34 to limit the bending rod 34 by the mounting cavity and the fixing hole and lock it by the first fastener. The operator only needs to remove a single fastener to replace the bending head 35 with different bending radii or shapes to meet the needs of multi-specification production.

[0061] The rotating motor 61 drives the bending head 35 to apply bending force to the saliva suction tube through the hinge seat 62 and the rotating connecting plate 63. The hinge structure effectively reduces the motion inertia, ensures a smooth bending process, and avoids deformation or breakage of the tube.

[0062] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A bending device for a saliva suction tube production, characterized by, It comprises: a base (1); a mobile base (2) sliding on the base (1); a bending assembly comprising a placing table (31), a rotating shaft (32), a movable head (33) and a bending piece, the placing table (31) being fixedly installed on the mobile base (2), the rotating shaft (32) rotating on the placing table (31), the movable head (33) being installed on the rotating shaft (32), the movable head (33) being provided with a movable cavity, the bending piece comprising a bending rod (34) and a bending head (35), the bending rod (34) being installed in the movable cavity, the bending head (35) being installed on the top of the bending rod (34); the movable head (33) being adapted to drive the bending head (35) to rotate to bend the externally clamped saliva suction tube.

2. The bending device for saliva suction tube production according to claim 1, characterized in that: the top of the bending rod (34) is provided with a mounting block (36), the mounting block (36) being provided with a mounting cavity and a fixing hole, the axis of the mounting cavity and the axis of the fixing hole being perpendicular and staggered; the bending head (35) is adapted to be installed on the mounting block (36), the bending head (35) comprising a bending part (351) and a mounting part (352), the mounting part (352) being provided with a mounting hole; after the bending head (35) is installed in place, the mounting part (352) is arranged in the mounting cavity so that the mounting hole is arranged in the same position as the fixing hole.

3. The bending device for saliva suction tube production according to claim 2, characterized in that: the bending assembly further comprises a first fastener, the first fastener being adapted to pass through the fixing hole and the mounting hole to lock the bending head (35) on the mounting block (36).

4. The bending device for saliva suction tube production according to claim 1, characterized in that: it further comprises a displacement assembly, the displacement assembly comprising a first displacement support (41), a second displacement support (42), at least one auxiliary roller (43) and at least one threaded roller (44), the first displacement support (41) and the second displacement support (42) being both installed on the base (1); the auxiliary roller (43) is parallel to the threaded roller (44); one end of the auxiliary roller (43) is installed on the first displacement support (41), and the other end of the auxiliary roller (43) is installed on the second displacement support (42); one end of the threaded roller (44) is rotatably installed on the first displacement support (41), and the other end of the threaded roller (44) is rotatably installed on the second displacement support (42).

5. The bending device for saliva suction tube production according to claim 4, characterized in that: the first displacement support (41) is provided with a first bearing seat, and the second displacement support (42) is provided with a second bearing seat; the mobile base (2) is provided with at least one movable hole and a threaded hole suitable for engaging with the threaded roller (44). 6.The bending device for producing saliva suction tube according to claim 4, characterized in that: the displacement assembly further comprises a driving mechanism, the driving mechanism comprises a driving motor (51), a driving sprocket (52), a driven sprocket (53) and a synchronous chain (54), the driving motor (51) is installed on the base (1), the driving sprocket (52) is rotatably installed on the base (1), the driving end of the driving motor (51) is connected with the driving sprocket (52), the driven sprocket (53) is connected with the threaded roller (44), and the synchronous chain (54) is adapted to connect the driving sprocket (52) and the driven sprocket (53) ; the driving motor (51) drives the driving sprocket (52) to rotate to drive the synchronous chain (54) to move, and then drives the driven sprocket (53) and the threaded roller (44) to rotate synchronously, so that the moving base (2) slides on the base (1). 7.The bending device for producing saliva suction tube according to claim 1, characterized in that: the bending device further comprises a rotating assembly, the rotating assembly comprises a rotating motor (61), a hinged seat (62) and a rotating connecting plate (63), the rotating motor (61) is installed on the placing table (31), the hinged seat (62) is installed on the driving end of the rotating motor (61), one end of the rotating connecting plate (63) is hinged on the hinged seat (62), and the other end of the rotating connecting plate (63) is hinged on the rotating shaft (32). 8.The bending device for producing saliva suction tube according to claim 1, characterized in that: the bending device further comprises at least one connecting plate (7), one end of the connecting plate (7) is installed on the base (1), and the other end of the connecting plate (7) is adapted to be connected with an external rack.