Medical gauze ball production device

Abstract

A medical gauze ball production device comprises a rubber ring cutting device, a rubber ring transferring device, a rubber ring connecting device, a pushing device and a gauze ball forming device, the gauze ball forming device comprises an outer pipe, a core pipe is axially arranged in an inner hole of the outer pipe in a sliding mode, and a forming pipe is axially arranged in an annular gap between the outer pipe and the inlet end of the core pipe; an axial counter bore corresponding to the outer end of the core pipe is formed in the outer end face of a pushing rod of the pushing device, the diameter of the axial counter bore is larger than that of the outer end of the core pipe, the diameter of the outer end of the pushing rod is smaller than that of the inlet end of the forming pipe, and axial movement of the core pipe and axial movement of the pushing rod are conducted through two independent driving devices respectively. According to the gauze ball production device, the special part for limiting and guiding the to-be-folded position of the gauze piece is additionally arranged between the pushing device and the gauze ball forming device, so that the gauze ball can be quickly formed in a shorter forming pipe, and the production efficiency of the gauze ball can be effectively improved.

Description

Technical Field

[0001] The invention relates to a medical gauze ball production device, belonging to the technical field of gauze ball production equipment. Background Art

[0002] The existing gauze ball production equipment, as shown in the Chinese invention patent "Authorization Announcement No.: CN107198608B; Application Publication Date: September 26, 2017; Name: Gauze Ball Machine", includes a rubber ring cutting device, a rubber ring transfer device, a rubber ring handover device, a pushing device and a gauze ball forming device arranged in sequence. A conveyor belt that can vertically transport gauze sheets is provided between the pushing device and the gauze ball forming device, and a space is provided in the middle of the conveyor belt for accommodating the relevant components of the pushing device and the gauze ball forming device to pass through. This solution has the following defects: 1. The rubber ring transfer device is a double-arm swing type. When one swing arm is located at the rubber ring cutting device, the other swing arm is located at the pushing device. This design not only does not substantially help improve the production efficiency of the gauze balls, but also has the defects of occupying a large space and putting higher requirements on the bracket design of the transfer device. In addition, only the rubber ring transfer device and the pushing device can be moved corresponding to the gauze ball forming device, and a simpler method of moving the gauze ball forming device cannot be adopted. There is a problem in the arrangement between the rubber ring transfer device, the pushing device and the gauze ball forming device. 1. The invention has the following defects: 1. There are few options, many reciprocating parts during use, and a higher failure rate; 2. During the folding and forming process of the gauze piece, after the rubber ring is put on the raised part of the gauze piece, the gauze piece that has been initially folded is immediately pushed into the forming tube by the pushing rod for axial movement. During the axial movement, the gauze piece that has been initially folded finally forms a gauze ball by cooperating with the inner wall of the forming tube. In this solution, since there is no dedicated component to guide the folding of the gauze piece, the gauze piece needs to move a long distance in the forming tube to form a gauze ball, which has the defects of a long forming tube and low forming efficiency. Summary of the Invention

[0003] The purpose of the present invention is to address the above-mentioned technical defects of the existing gauze ball machine and provide a new medical gauze ball production device. The gauze ball production device adds a special component between the pushing device and the gauze ball forming device for limiting and guiding the folding position of the gauze piece, which can achieve faster forming of gauze balls in a shorter forming tube, and can effectively improve the production efficiency of gauze balls.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions: A medical gauze ball production device includes a rubber ring cutting device, a rubber ring transfer device, a rubber ring handover device, a pushing device and a gauze ball forming device which are arranged in sequence. A conveyor belt which can vertically transport gauze pieces is provided between the pushing device and the gauze ball forming device. A space is provided in the middle of the conveyor belt for accommodating the pushing device and related components of the gauze ball forming device to pass through. The device is characterized in that the gauze forming device includes an outer tube, a core tube is axially slidingly arranged in the inner hole of the outer tube, a forming tube is axially arranged in the annular gap between the outer tube and the inlet end of the core tube, an outer end face of the pushing end of the pushing rod of the pushing device is provided with an axial countersunk hole corresponding to the outer end of the core tube, the aperture of the axial countersunk hole is larger than the outer diameter of the inlet end of the core tube, and the outer diameter of the pushing end of the pushing rod is smaller than the aperture of the inlet end of the forming tube.

[0005] By adopting the above technical solution, a medical gauze ball production device is provided, in which an axial countersunk hole corresponding to the inlet end of the core tube is provided at the pushing end of the pushing rod. During the gauze ball forming process, the axial countersunk hole is sleeved on the end of the core tube, and the outer wall of the axial countersunk hole can effectively support the folding position of the rubber ring and the gauze block. With the axial movement of the pushing rod, the rotation of the rubber ring can be effectively realized, thereby effectively ensuring that the gauze is quickly and evenly wound on the rubber ring, which can effectively accelerate the forming of the gauze ball.

[0006] The present invention is further configured as follows: the inner hole of the forming tube has a gradually increasing diameter from the inlet end to the outlet end.

[0007] By adopting the above technical solution, the aperture of the inner hole of the forming tube is optimized, which can effectively ensure that the gauze roll that gradually increases radially on the outer wall of the axial countersunk hole can move smoothly axially while ensuring sufficient friction, and can effectively ensure that the gauze ball is smoothly formed.

[0008] The present invention is further configured as follows: a return spring is provided between the inner end face of the forming tube and the axial limiting component of the inner hole wall of the outer tube, which allows the forming tube to rebound toward the inlet end; the inner hole wall of the forming tube is provided with an annular push platform for unloading toward the outlet end; the circumferential surface of the outer surface of the pushing rod is axially slidingly arranged on the unloading outer sleeve; the pushing end of the unloading outer sleeve corresponds to the inlet end of the forming tube.

[0009] The present invention is further configured as follows: the inner hole of the pushing rod axially slides to accommodate the blanking core barrel, the blanking core barrel and the blanking outer sleeve move axially synchronously, and the distance between the pushing end of the blanking core barrel and the pushing end of the blanking outer sleeve is equal to the distance between the pushing end of the blanking core barrel and the pushing end of the pushing rod before pushing.

[0010] By adopting the above technical solution, the forming tube is designed to be axially sliding, and a corresponding unloading outer sleeve is sleeved on the outside of the pushing rod. When the gauze piece is wound up, the gauze roll reaches the right side of the unloading ring push platform. At this time, the unloading outer sleeve pushes the forming tube, and the gauze roll can be unloaded by pushing the unloading ring push platform to the right; at the same time, the inside of the pushing rod is also equipped with a unloading core tube, and the unloading core tube and the unloading outer sleeve push the gauze roll from the inside and the outside respectively, which not only can complete the unloading of the gauze roll without deformation, but also can effectively ensure that the gauze roll enters the core tube accurately.

[0011] The present invention is further configured as follows: the inner and outer edges of the mouth of the axial countersunk hole are chamfered.

[0012] By adopting the above technical solution, the pushing end of the pushing rod is chamfered, which can effectively prevent the pushing end of the pushing rod from scratching the gauze during the pushing process, and effectively ensure smooth material feeding and pushing.

[0013] The present invention is further configured as follows: the inner edge of the inner hole at the inlet end of the forming tube is chamfered, and the inner hole wall of the forming tube is axially equidistantly provided with a plurality of annular ridges or grooves for increasing friction.

[0014] By adopting the above technical solution, the inner edge of the inner hole at the inlet end of the forming tube is chamfered, which improves the convenience of gauze entering the forming tube. The annular ridges or grooves are provided in the forming hole, which can effectively increase the friction coefficient of the inner wall of the forming hole, further ensuring the rapid winding and shaping of the gauze during the pushing process.

[0015] The present invention is further configured as follows: the other end of the blanking core barrel is connected to a high-pressure gas source through a pipeline with an on-off valve.

[0016] By adopting the above technical solution, the blanking core tube is equipped with a high-pressure air source, which can effectively blow out the gauze balls in the core tube, and can timely remove the gauze balls in the forming tube to avoid the gauze balls from accumulating in the forming tube.

[0017] The present invention is further configured as follows: a support ring is provided on the side of the conveyor belt facing away from the gauze ball forming device, and the support ring is coaxial with the core tube of the gauze forming device.

[0018] By adopting the above technical solution, the support ring can effectively ensure that the gauze piece can be accurately raised through cooperation with the core tube so as to put on the rubber ring.

[0019] The present invention is further configured as follows: the rubber ring transfer device includes a rotating motor and a transfer swing arm arranged on the rotating shaft of the rotating motor, and the outer end of the transfer swing arm is provided with a socket for the rubber ring.

[0020] The present invention is further configured as follows: the gauze ball forming device is placed on the transverse moving device, and the transverse moving device can carry the gauze ball forming device to move back and forth between the rubber ring handover device and the pushing device.

[0021] By adopting the above technical solution, the rubber ring transfer device is designed into a simpler single-arm type, and the gauze ball forming device is changed to a transverse type, and the handover device and the pushing device are changed to a fixed type. This series of designs does not reduce the production efficiency of the gauze balls. At the same time, when using this solution, only the gauze ball forming device is used for reciprocating transverse movement, and the rubber ring handover device and the pushing device are not used for reciprocating transverse movement, which effectively reduces the failure rate of the entire device, reduces manufacturing and maintenance costs, and reduces energy consumption.

[0022] The main beneficial effects of the present invention are: 1. The gauze ball production device of the present invention is provided with an axial countersunk hole corresponding to the inlet end of the core tube at the pushing end of the pushing rod. During the gauze ball forming process, the axial countersunk hole is sleeved on the end of the core tube, and the outer wall of the axial countersunk hole can effectively support the rubber ring and the gauze block at the folding position. With the axial movement of the pushing rod, the rotation of the rubber ring can be effectively realized, thereby effectively ensuring that the gauze is quickly and evenly wound on the rubber ring, which can effectively accelerate the forming of the gauze ball.

[0023] 2. The present invention designs the forming tube to be axially sliding, and sets a corresponding unloading outer sleeve on the outside of the pushing rod. When the gauze sheet is wound up, the gauze roll reaches the right side of the unloading annular push platform. At this time, the unloading outer sleeve pushes the forming tube, and the unloading of the gauze roll can be achieved by pushing the unloading annular push platform to the right. At the same time, a unloading core tube is also provided inside the pushing rod, and the unloading core tube and the unloading outer sleeve push the gauze roll from the inside and the outside respectively, which not only enables the gauze roll to be unloaded without deformation, but also effectively ensures that the gauze roll enters the core tube accurately.

[0024] 3. The present invention designs the rubber ring transfer device into a simpler single-arm type, and at the same time changes the gauze ball forming device into a transverse type, and changes the handover device and the pushing device into a fixed type. This series of designs does not reduce the production efficiency of the gauze balls. At the same time, when in use, this solution only uses the reciprocating transverse movement of the gauze ball forming device, and does not require the reciprocating transverse movement of the rubber ring handover device and the pushing device, which effectively reduces the failure rate of the entire device, reduces manufacturing and maintenance costs, and reduces energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is a schematic structural diagram of the present invention as a whole; Figure 2 This is a schematic structural diagram of the forming device before extruding the gauze sheet on the conveyor belt in the present invention; Figure 3 This is a schematic structural diagram of the present invention when the forming device squeezes the gauze piece and causes the middle portion of the gauze piece to bulge; Figure 4 This is a schematic structural diagram of the present invention before the pushing device pushes the gauze sheet covered with the rubber ring 8 into the forming device; Figure 5 It is a structural schematic diagram of the pushing end of the pushing device of the present invention extending into the interior of the forming device.

[0027] In the figure, 1. rubber ring cutting device; 2. rubber ring transfer device; 21. rotating motor; 22. transfer swing arm; 23. socket; 3. rubber ring handover device; 4. pushing device; 41. pushing rod; 411. axial countersunk hole; 412. side opening; 42. blanking core barrel; 43. blanking outer sleeve; 44. first pushing cylinder; 45. second pushing cylinder; 46. first bracket; 47. second bracket; 48. bottom plate; 5. forming device; 51. outer tube; 52. forming tube; 521. blanking annular push platform; 53. core tube; 54. return spring; 55. third pushing cylinder; 56. blanking tube; 57. bracket; 61. conveyor belt; 62. gauze piece; 7. support ring; 8. rubber ring; 9. transverse movement device. DETAILED DESCRIPTION

[0028] The technical solutions of the present invention will be described clearly and completely below with reference to specific embodiments. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention. Example

[0029] like Figures 1 to 5As shown, a medical gauze ball production device includes a rubber ring cutting device 1, a rubber ring transfer device 2, a rubber ring handover device 3, a pushing device 4 and a gauze ball forming device 5 which are arranged in sequence. A conveyor belt 61 which can vertically transport gauze pieces 62 is provided between the pushing device 4 and the gauze ball forming device 5. A space is provided in the middle of the conveyor belt 61 for accommodating the relevant components of the pushing device 4 and the gauze ball forming device 5 to pass through. The gauze forming device 5 includes an outer tube 51 fixed on a bracket 57. A core tube 53 is axially slidably arranged in the inner hole of the outer tube 51. A forming tube 52 is axially arranged in the annular gap between the inlet ends of the outer tube 51 and the core tube 53. The inner hole of the forming tube 52 has an aperture that gradually increases from the inlet end to the outlet end. The outer end surface of the pushing end of the pushing rod 41 of the pushing device 4 is provided with an axial countersunk hole 411 corresponding to the outer end of the core tube 53. The aperture of the axial countersunk hole 411 is larger than the outer diameter of the inlet end of the core tube 53. The outer diameter of the pushing end of the pushing rod 41 is smaller than the aperture of the inlet end of the forming tube 52. The axial movement of the core tube 53 and the pushing rod 41 are performed separately by two independent driving devices.

[0030] A return spring 54 is installed between the inner end surface of the forming tube 52 and the axial stopper of the inner bore wall of the outer tube 51, allowing the forming tube 52 to rebound toward the inlet end. The inner bore wall of the forming tube 52 is provided with an annular push platform 521 for material removal, facing the outlet end. The outer sleeve 43 for material removal slides axially on the circumferential surface of the push rod 41. The axial movement of the outer sleeve 43 is performed by an independent drive device, and the push end of the outer sleeve 43 corresponds to the inlet end of the forming tube 52. The edge of the inner bore of the inlet end of the forming tube 52 is chamfered, and the inner bore wall of the forming tube 52 is equidistantly provided with a number of annular ridges or grooves equidistantly spaced axially to increase friction.

[0031] The inner bore of the push rod 41 houses the blanking core barrel 42 for axial sliding movement. The blanking core barrel 42 and the blanking outer sleeve 43 are synchronously driven axially by the same drive mechanism. The distance between the pushing ends of the blanking core barrel 42 and the blanking outer sleeve 43 is equal to the distance between the pushing ends of the blanking core barrel 42 and the pushing ends of the push rod 41 before pushing. The inner and outer edges of the rim of the axial counterbore 411 at the pushing end of the push rod 41 are chamfered. The other end of the blanking core barrel 42 is connected to a high-pressure air source via a pipe with an on-off valve. The push rod 41 is secured to a base plate 48 via a second bracket 47. The base plate 48 is slidably mounted on the machine frame by a first push cylinder 44. The blanking core barrel 42 and the blanking outer sleeve 43 are fixedly connected via a strip-shaped side opening 412 in the push rod 41. The blanking core barrel 42 and the blanking outer sleeve 43 are synchronously driven by a second push cylinder 45 fixed to the base plate 48.

[0032] A support ring 7 is provided on the side of the conveyor belt 61 facing away from the gauze ball forming device 5 . The support ring 7 is coaxial with the core tube 53 of the gauze forming device 5 .

[0033] The rubber ring transfer device 2 includes a rotary motor 21 and a transfer swing arm 22 mounted on the rotating shaft of the rotary motor 21. The outer end of the transfer swing arm 22 is provided with a sleeve 23 for the rubber ring. The gauze ball forming device 5 is mounted on the transverse movement device 9, which can carry the gauze ball forming device 5 back and forth between the rubber ring transfer device 3 and the pushing device 4.

[0034] How it works: Reference Figures 1 to 5, the rubber ring cutting device 1 cuts the rubber ring 8, and the rubber ring transporting device 2 transports the rubber ring 8 at the rubber ring cutting device 1 to the rubber ring handing device 3. When the transport swing arm 22 of the rubber ring transporting device 2 returns to the rubber ring cutting device 1 to transfer the next rubber ring 8, the gauze ball forming device 5 moves to the position of the rubber ring handing device 3 via the transverse moving device 9 (at this time, the conveyor belt 61 transports a gauze piece 62), the third pushing cylinder 55 of the gauze ball forming device 5 extends, and the core tube 53 moves to the left, pushing the middle part of the gauze piece 62 toward the inner hole of the support ring 7, so that the middle part of the gauze piece 62 bulges, and when the middle bulge of the gauze piece 62 moves to the appropriate position, the rubber ring handing device 3 puts the rubber ring 8 on the bulge of the gauze piece 62 (at this time, the gauze piece 62 is The raised portion is still sleeved on the left end of the core tube 53), the third pushing cylinder 55 controls the core tube 53 to retreat to the right, so that the end portion of the core tube 53 on which the gauze piece 6 is sleeved is retreated as a whole to the right side of the conveyor belt 61, and then the transverse moving device 9 moves the gauze ball forming device 5 to the position corresponding to the pushing device 4, and the first pushing cylinder 44 of the pushing device 4 pushes the pushing rod 41 to the right, and the axial countersunk hole 411 of the pushing end of the pushing rod 41 is first sleeved on the raised portion of the gauze piece 62, then, the first pushing cylinder 44 continues to push the pushing rod 41 to the right, and at the same time, the third pushing cylinder 55 also drives the core tube 55 to move to the right (the speed of the core tube 55 moving to the right is greater than the speed of the pushing rod 41 moving to the right), in this process, the edge of the gauze piece 62 will be folded and sleeved on the gauze The rubber ring 8 on the raised part of the cloth piece 62 is in close radial contact. Under the axial pushing action of the pushing rod 41 of the forming tube 52, the rubber ring 8 will rotate, so that the gauze piece 62 is gradually wound on the rubber ring 8. After the gauze piece 62 moves to the blanking annular push platform 521, the gauze piece 62 is wound and forms a gauze roll (at this time, the compressed rubber ring 8 expands and becomes larger, so that the outer edge size of the gauze roll is larger than the edge of the blanking annular push platform 521, and the left end of the core tube 53 completely moves out of the axial countersunk hole 411 and forms a certain space with the end of the pushing rod 41). Then, the second pushing cylinder 45 synchronously pushes the pushing rod 41 and the blanking core tube 42 to move right. When the blanking core tube 42 moves out of the axial countersunk hole 422 to push the middle part of the gauze roll, the blanking outer sleeve 43 passes The forming tube 52 is pushed to the right, and the outer ring of the gauze roll is pushed to the right synchronously. By pulling down the core tube 42 and moving the blanking outer sleeve 43 to the right, the middle and outer edge of the gauze roll are pushed to the right at the same time, which not only ensures that the gauze roll is conveniently and quickly dropped, but also effectively ensures that the gauze roll enters the core tube 53 accurately. When the gauze is rolled into the core tube 53, the gauze roll is automatically contracted by the rubber ring 8 and the inner wall of the core tube 53. The gauze roll finally forms a gauze ball. In the process of the gauze ball moving in the core tube 53, the blanking core tube 42 also provides high-pressure gas to accelerate the movement of the gauze ball in the core tube 53 to ensure the smooth movement and dropping of the gauze ball in the core tube 53. After the gauze ball is formed and the dropping is completed, the pushing component of the pushing device 4 retracts.The gauze ball forming device 5 is transferred to the rubber ring handover device 3 under the action of the transverse movement device 9 to perform the rubber ring processing on the next gauze piece 62.

Claims

1. A medical gauze ball production device, comprising a rubber ring cutting device (1), a rubber ring transporting device (2), a rubber ring handover device (3), a pushing device (4) and a gauze ball forming device (5) arranged in sequence, a conveyor belt (61) capable of vertically transporting gauze sheets (62) is provided between the pushing device (4) and the gauze ball forming device (5), a space for accommodating the pushing device (4) and the related components of the gauze ball forming device (5) passing through is provided in the middle of the conveyor belt (61), and the device is characterized in that: The gauze forming device (5) comprises an outer tube (51), the inner hole of the outer tube (51) axially slidingly accommodates a core tube (53), and the annular gap between the outer tube (51) and the inlet end of the core tube (53) axially accommodates a forming tube (52), and the outer end surface of the pushing end of the pushing rod (41) of the pushing device (4) is provided with an axial countersunk hole (411) corresponding to the outer end of the core tube (53), the aperture of the axial countersunk hole (411) is larger than the outer diameter of the inlet end of the core tube (53), and the outer diameter of the pushing end of the pushing rod (41) is smaller than the aperture of the inlet end of the forming tube (52).

2. A medical gauze ball production device according to claim 1, characterized in that: The inner hole of the forming tube (52) has a gradually increasing diameter from the inlet end to the outlet end.

3. A medical gauze ball production device according to claim 2, characterized in that: A return spring (54) is provided between the inner end surface of the forming tube (52) and the axial limiting component of the inner hole wall of the outer tube (51) to allow the forming tube (52) to rebound toward the inlet end. The inner hole wall of the forming tube (52) is provided with a blanking annular push platform (521) toward the outlet end. The outer circumferential surface of the push rod (41) is axially slidably arranged on the blanking outer sleeve (43). The push end of the blanking outer sleeve (43) corresponds to the inlet end of the forming tube (52).

4. A medical gauze ball production device according to claim 3, characterized in that: The inner hole of the pushing rod (41) is axially slidingly arranged to accommodate the blanking core barrel (42), and the blanking core barrel (42) and the blanking outer sleeve (43) move axially synchronously. The distance between the pushing end of the blanking core barrel (42) and the pushing end of the blanking outer sleeve (43) is equal to the distance between the pushing end of the blanking core barrel (42) and the pushing end of the pushing rod (41) before pushing.

5. The medical gauze ball production device according to claim 4, characterized in that: The inner and outer edges of the mouth of the axial countersunk hole (411) are chamfered.

6. The medical gauze ball production device according to claim 5, characterized in that: The edge of the inner hole at the inlet end of the forming tube (52) is chamfered, and the inner hole wall of the forming tube (52) is axially equidistantly provided with a plurality of annular ridges or grooves for increasing friction.

7. The medical gauze ball production device according to claim 4, characterized in that: The other end of the blanking core barrel (42) is connected to a high-pressure gas source via a pipeline with an on-off valve.

8. The medical gauze ball production device according to claim 1, characterized in that: A support ring (7) is provided on the side of the conveyor belt (61) facing away from the gauze ball forming device (5), and the support ring (7) is coaxial with the core tube (53) of the gauze forming device (5).

9. The medical gauze ball production device according to claim 1, characterized in that: The rubber ring transfer device (2) comprises a rotating motor (21) and a transfer swing arm (22) arranged on the rotating shaft of the rotating motor (21), and a sleeve (23) for the rubber ring is provided at the outer end of the transfer swing arm (22).

10. The medical gauze ball production device according to claim 9, characterized in that: The gauze ball forming device (5) is placed on the transverse moving device (9), and the transverse moving device (9) can carry the gauze ball forming device (5) to move back and forth between the rubber ring handover device (3) and the pushing device (4).

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