Device with function of continuously conveying tubular materials

By designing a device with components such as a turntable, buffer hopper, and flexible hanging curtain, the problems of tubular materials clogging in the material box and discontinuous feeding were solved, enabling continuous feeding without stopping the machine, improving production efficiency and reducing costs.

CN121849682APending Publication Date: 2026-04-14YIWU HONGQIANG MASCH EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-22
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The existing tubular material loading and unloading device is prone to clogging when there is a large amount of tubing in the material box, resulting in excessive pressure at the clamping teeth and affecting the conveying efficiency. When there are fewer tubes in the material box, the feeding rate of the clamping teeth slows down, requiring frequent manual checks of the material inventory, which affects production efficiency.

Method used

Design a device that includes components such as a turntable, a buffer hopper, a feeding channel, a silo, a flexible hanging curtain, and pipe baffles. The device conveys tubular materials through the teeth on the turntable, and uses the flexible hanging curtain and pipe baffles to prevent the pipes from accumulating in the gaps. Combined with the buffer hopper, it can achieve continuous feeding without stopping the machine.

Benefits of technology

This effectively avoids pipe blockage and accumulation at the toothed joint, enabling continuous feeding without stopping the machine, improving production efficiency and reducing production costs.

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Abstract

The invention relates to the technical field of pipe blanking machines, in particular to a device with a function of continuously conveying tubular materials, tubular objects enter a stock bin from a buffer hopper through a blanking channel and are gathered in an inner cavity of the stock bin, the tubular objects on one side of the inner cavity of the stock bin are in contact with the periphery of a rotary disc, and a soft hanging curtain is attached to the surfaces of the tubular objects gathered in the inner cavity of the stock bin in a pressing mode; when the rotating disc is driven by the rotating shaft of the rotating disc to rotate, the tubular objects entering the clamping teeth of the rotating disc are continuously conveyed to a target station along with the rotating disc, the subsequent tubular objects continuously enter an inner cavity of the stock bin through the discharging channel from the buffering hopper, and the tubular objects which do not enter the clamping teeth and move along with the rotating disc are blocked by the pipe baffle and then fall back to the stock bin. The soft hanging curtain can effectively prevent the pipes from entering the gap between the pipe baffle and the rotary disc from the upper end of the pipe baffle, and the situation that the pipes are stacked too much at the pipe baffle and are staggered and overlapped due to too large pressure, and normal work of the pipe baffle is affected is avoided.
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Description

Technical Field

[0001] This invention relates to the field of pipe feeding machine technology, and in particular to a device with the function of continuously conveying tubular materials. Background Technology

[0002] In daily life, people frequently use household items with tubular structures, such as cotton swabs and straws. During the production of these products, loading and unloading are typically handled using mechanical devices. Currently, existing loading and unloading mechanisms for such tubes generally employ a turntable with corresponding clamping teeth around its perimeter for positioning and handling. To ensure stable loading, rotating brushes are installed at the contact points between the tubes and the clamping teeth. The applicant has found that when the number of tubes in the material box is large, the stacked tubes easily cause blockage at the contact points between the tubes and the clamping teeth. This is because a large number of tubes in the box creates excessive pressure at the contact points between the lower tubes and the clamping teeth, causing the overlapping tubes to be unable to pass through the brushes and resulting in blockage. Furthermore, reducing the number of tubes in the material box can effectively prevent this from happening. However, when there are fewer tubes in the box, the loading rate of the turntable's clamping teeth is significantly reduced, and the time interval for discharging material from the box is shortened, requiring frequent manual checks to ensure the box is full, thus causing production inconvenience. Summary of the Invention

[0003] To address the above problems, this invention proposes a device for continuously conveying tubular materials.

[0004] The technical solution adopted in this invention is: A device for continuously conveying tubular materials includes a turntable, a buffer hopper, a discharge channel, a silo, a flexible curtain, pipe stops, and supporting components and connectors. The turntable has several locking teeth around its periphery, and a portion of these teeth is located on one side of the silo's inner cavity. The buffer hopper is located above the silo, and the two are connected through the discharge channel. The tubular material enters the silo from the buffer hopper through the discharge channel and accumulates in the silo's inner cavity. The tubular material on one side of the silo's inner cavity contacts the periphery of the turntable, and the flexible curtain presses against the surface of the tubular material accumulated in the silo's inner cavity. When the turntable is driven to rotate by its shaft, the tubular material entering the locking teeth is continuously conveyed to the destination station along with the turntable. Subsequent tubular material continuously enters the silo's inner cavity from the buffer hopper through the discharge channel. Tubular material that does not enter the locking teeth but moves with the turntable is blocked by the pipe stops and falls back into the silo.

[0005] Furthermore, the turntable is formed by fastening two toothed discs with corresponding structures through two toothed discs that differ only in the diameter of their central holes, with the two toothed discs alternating and their outer teeth corresponding.

[0006] Furthermore, the bottom of the buffer hopper has a discharge port, and the inclined bottom plates on both sides of the discharge port form a "Y" shape with the discharge channel.

[0007] Furthermore, the buffer hopper is provided with an upper interface, which can be matched and connected to the lower opening of an external storage box.

[0008] Furthermore, the buffer hopper is provided with a side interface, which can be connected to the discharge end of an external tubular material conveying device.

[0009] Furthermore, the feeding channel is equipped with two switches, one at the top and one at the bottom, namely a sliding opening and closing baffle and a rotating opening and closing baffle located at the bottom.

[0010] Furthermore, the hopper is formed by a first protective plate, a second protective plate, an upper cover plate, an outer side plate of the discharge channel, a lower inclined plate, a portion of the outer periphery of the turntable, and a pipe baffle.

[0011] Furthermore, one end of the lower inclined plate is provided with a toothed groove, and the turntable rotates with its periphery passing through the toothed groove.

[0012] Furthermore, the soft curtain is a silicone sheet that is bent into a "U" shape and whose two ends are respectively fixed to the upper cover plate.

[0013] Furthermore, the upper ends of both sides of the soft hanging curtain are provided with limiting plates.

[0014] Furthermore, the tube stop is a cylindrical brush driven to rotate by a motor, with its axis of rotation parallel to the axis of rotation of the turntable, and the gap between the edge of the brush and the edge of the turntable is smaller than the diameter of the tube.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a device for continuously conveying tubular materials, including a turntable, a buffer hopper, a discharge channel, a silo, a flexible curtain, a pipe stop, and supporting components and connecting components. The turntable has several locking teeth around its periphery, and a portion of them is located on one side of the inner cavity of the silo. The buffer hopper is located above the silo, and the two are connected to each other through the discharge channel. The tubular material enters the silo from the buffer hopper through the discharge channel and accumulates in the inner cavity of the silo. The tubular material on one side of the inner cavity of the silo contacts the periphery of the turntable, and the flexible curtain presses against the surface of the tubular material accumulated in the inner cavity of the silo. When the turntable is driven to rotate by its shaft, the material enters the locking teeth. Tubular materials are continuously conveyed to the destination station by the turntable. Subsequent tubular materials enter the hopper cavity from the buffer hopper through the feeding channel. Tubular materials that do not enter the clamping teeth but move with the turntable are blocked by the tube stop and fall back into the hopper. The soft hanging curtain effectively prevents tubes from entering the gap between the tube stop and the turntable from the top of the tube stop, avoiding excessive accumulation of tubes at the tube stop and excessive pressure that could cause overlapping and affect the normal operation of the tube stop. In addition, when the tube material in the material box is used up, if there is still tube material in the buffer hopper, the material box containing tube material can be replaced in time to achieve continuous feeding without stopping the machine. Alternatively, a tube material conveying device can be set on one side of the buffer hopper to convey tube material into the buffer hopper, which can also achieve continuous feeding without stopping the machine. In this way, production efficiency can be effectively improved and production costs can be significantly reduced. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a device for continuously conveying tubular materials according to the present invention; Figure 2 This is a schematic diagram of the structure of the device for continuously conveying tubular materials according to the present invention after installing the storage box; Figure 3 This is a schematic diagram of the first internal structure of a device for continuously conveying tubular materials according to the present invention. Figure 4 This is a schematic diagram of the second internal structure of a device for continuously conveying tubular materials according to the present invention; Figure 5 This is a schematic diagram of the third internal structure of a device for continuously conveying tubular materials according to the present invention; Figure 6This is a schematic diagram of the sealing plate in a device for continuously conveying tubular materials according to the present invention.

[0018] The following are labeled in the attached diagram: 1-turntable, 2-storage box, 3-discharge port, 4-hopper, 5-soft hanging curtain, 6-tooth disc, 7-sloping bottom plate, 8-buffer hopper, 9-tooth clamp, 10-discharge channel, 11-side interface, 12-sliding opening and closing baffle, 13-rotating opening and closing baffle, 14-first guard plate, 15-second guard plate, 16-upper cover plate, 17-outer side plate, 18-lower sloping plate, 19-tooth groove, 20-limiting plate, 21-motor, 22-pipe stop.

[0019] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0021] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0022] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0023] See the attached instruction manual. Figure 1-6This invention provides a device for continuously conveying tubular materials, including a turntable 1, a buffer hopper 8, a discharge channel 10, a hopper 4, a flexible curtain 5, a pipe baffle 22, and supporting and connecting components. The turntable 1 has several locking teeth 9 around its periphery, with a portion of them located on one side of the inner cavity of the hopper 4. The buffer hopper 8 is located above the hopper 4, and the two are interconnected through the discharge channel 10. The tubular material enters the hopper 4 from the buffer hopper 8 through the discharge channel 10 and accumulates in the inner cavity of the hopper. The tubular material on one side of the inner cavity of the hopper contacts the periphery of the turntable 1. The flexible curtain 5 is attached to... The tubular material is pressed against the surface of the tubular material gathered in the inner cavity of the hopper. When the turntable 1 is driven to rotate by its shaft, the tubular material entering the tooth 9 is continuously transported to the destination station along with the turntable. The subsequent tubular material enters the inner cavity of the hopper from the buffer hopper 8 through the discharge channel 10. The tubular material that does not enter the tooth 9 but moves with the turntable 1 is blocked by the tube stop 22 and falls back into the hopper 4. The soft curtain 5 can effectively prevent the tube from entering the gap between the tube stop 22 and the turntable 1 from the upper end of the tube stop 22, and prevent the tube from accumulating too much at the tube stop and the pressure from being too high, which would cause the tube to overlap and affect the normal operation of the tube stop.

[0024] In a preferred embodiment of this invention, the turntable 1 is formed by fastening two toothed discs 6 with corresponding structures through two toothed discs 6 that have different central hole diameters. The two toothed discs 6 are alternate and their outer teeth correspond to each other.

[0025] In a preferred embodiment of this invention, the bottom of the buffer hopper 8 has a discharge port, and the inclined bottom plates 7 on both sides of the discharge port and the discharge channel 10 form a "Y" shape to facilitate better material discharge.

[0026] As a preferred embodiment of this invention, the buffer hopper 8 is provided with an upper interface, which can be matched and connected with the lower opening of the external storage box 2. By increasing the storage box 2, the storage volume is increased and the discharge cycle is extended, eliminating the need for manual inspection of whether there is material in the box at all times.

[0027] In a preferred embodiment of this invention, the buffer hopper 8 is provided with a side interface 11, which can be connected to the discharge end of an external tubular material conveying device.

[0028] In a preferred embodiment of this invention, the feeding channel 10 is provided with two switches, one above and one below, namely a sliding opening and closing baffle 12 and a rotating opening and closing baffle 13 located below it.

[0029] In a preferred embodiment of this invention, the hopper 4 is formed by a first protective plate 14, a second protective plate 15, an upper cover plate 16, an outer side plate 17 of the discharge channel 10, a lower inclined plate 18, a portion of the outer periphery of the turntable 1, and a pipe baffle.

[0030] In a preferred embodiment of this invention, one end of the lower inclined plate 18 is provided with a tooth groove 19. The turntable 1 rotates and its periphery passes through the tooth groove 19. The tooth 9 on the turntable 1 passes through the lower inclined plate 18 through the tooth groove 19, reducing the gap between the lower inclined plate 18 and the tooth 9, and preventing the tubular material from flowing out from the gap between them.

[0031] In a preferred embodiment of this invention, the soft curtain 5 is a silicone sheet bent into a "U" shape, with its two ends fixed to the upper cover plate 16.

[0032] As a preferred embodiment of this invention, the upper ends of both sides of the soft hanging curtain 5 are provided with limiting plates 20 to prevent the soft hanging curtain 5 from being lifted up by excessive material in the hopper 4.

[0033] In a preferred embodiment of this invention, the tube stop 22 is a cylindrical brush driven to rotate by the motor 21, with its axis of rotation parallel to the axis of rotation of the turntable 1, and the gap between the edge of the brush and the edge of the turntable being smaller than the diameter of the tube.

[0034] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects: This invention provides a device for continuously conveying tubular materials, including a turntable, a buffer hopper, a discharge channel, a silo, a flexible curtain, pipe stops, and supporting and connecting components. The turntable has several locking teeth around its periphery, with a portion of the teeth located on one side of the silo's inner cavity. The buffer hopper is located above the silo, and the two are connected via the discharge channel. The tubular material enters the silo from the buffer hopper through the discharge channel and accumulates in the silo's inner cavity. The tubular material on one side of the silo's inner cavity contacts the periphery of the turntable, and the flexible curtain presses against the surface of the tubular material accumulated in the silo's inner cavity. When the turntable is driven to rotate by its shaft, the tubular material entering its locking teeth is continuously conveyed along with the turntable. Upon reaching the destination station, subsequent tubular materials continuously enter the hopper cavity from the buffer hopper via the feeding channel. Tubes that do not enter the clamping teeth and move with the turntable are blocked by the tube stop and fall back into the hopper. The flexible hanging curtain effectively prevents tubes from entering the gap between the tube stop and the turntable from the top of the tube stop, avoiding excessive accumulation and pressure at the tube stop, which could cause overlapping and affect the normal operation of the tube stop. In addition, when the tube material in the material box is used up, if there is still tube material in the buffer hopper, the material box containing tube material can be replaced in time to achieve continuous feeding without stopping the machine. Alternatively, a tube material conveying device can be set on one side of the buffer hopper to feed tube material into the buffer hopper, which can also achieve continuous feeding without stopping the machine. In this way, production efficiency can be effectively improved and production costs can be significantly reduced.

[0035] The product names described above are merely preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A device for continuously conveying tubular materials, comprising a turntable, a buffer hopper, a discharge channel, a silo, a flexible hanging curtain, pipe baffles, supporting components, and connecting components, characterized in that: The turntable has several teeth around its perimeter, and a portion of these teeth are located on one side of the inner cavity of the hopper. The buffer hopper is located above the hopper, and the two are connected to each other through a discharge channel. The tubular material enters the hopper from the buffer hopper through the discharge channel and accumulates in the inner cavity of the hopper. The tubular material on one side of the inner cavity of the hopper contacts the perimeter of the turntable, and the soft hanging curtain is pressed against the surface of the tubular material accumulated in the inner cavity of the hopper. When the turntable is driven to rotate by its shaft, the tubular material that enters its teeth is continuously transported to the destination station along with the turntable. Subsequent tubular materials enter the inner cavity of the hopper from the buffer hopper through the feeding channel. Tubular materials that do not enter the teeth but move with the turntable are blocked by the tube block and fall back into the hopper.

2. The device for continuously conveying tubular materials according to claim 1, characterized in that, The turntable is formed by fastening two toothed discs with corresponding structures through two toothed discs that differ only in the diameter of their central holes. The two toothed discs are spaced apart and their outer teeth correspond to each other.

3. The device for continuously conveying tubular materials according to claim 1, characterized in that, The bottom of the buffer hopper has a discharge port, and the inclined bottom plates on both sides of the discharge port form a "Y" shape with the discharge channel.

4. The device for continuously conveying tubular materials according to claim 1, characterized in that, The buffer hopper is equipped with an upper interface that can be matched and connected to the lower opening of an external storage box.

5. The device for continuously conveying tubular materials according to claim 1, characterized in that, The buffer hopper is equipped with a side interface, which can be connected to the discharge end of an external tubular material conveying device.

6. The device for continuously conveying tubular materials according to claim 1, characterized in that, The feeding channel is equipped with two switches, one at the top and one at the bottom: a sliding opening and closing baffle and a rotating opening and closing baffle located at the bottom.

7. The device for continuously conveying tubular materials according to claim 1, characterized in that, The hopper is formed by a first protective plate, a second protective plate, an upper cover plate, an outer side plate of the discharge channel, a lower inclined plate, a portion of the outer periphery of the turntable, and a pipe baffle.

8. The device for continuously conveying tubular materials according to claim 7, characterized in that, One end of the lower inclined plate is provided with a toothed groove, and the turntable rotates with its periphery passing through the toothed groove.

9. The device for continuously conveying tubular materials according to claim 7, characterized in that, The soft hanging curtain is a silicone sheet that is bent into a "U" shape and whose two ends are respectively fixed to the upper cover plate.

10. The device for continuously conveying tubular materials according to claim 8, characterized in that, Limiting plates are provided at the upper ends of both sides of the soft hanging curtain.

11. The device for continuously conveying tubular materials according to claim 1, characterized in that, The tube stop is a cylindrical brush driven to rotate by a motor. Its axis of rotation is parallel to the axis of rotation of the turntable, and the gap between the edge of the brush and the edge of the turntable is smaller than the diameter of the tube.