Forming device for test tube processing

Abstract

The invention relates to the technical field of test tube processing, and provides a forming device for test tube processing, which is characterized by comprising a conveying roller way, a circulating conveying piece, a flame projector and an opening mechanism, the conveying roller way is used for intermittently conveying glass tubes, the flame projector is arranged below the conveying roller way, and the flame projector is used for heating the glass tubes; the circulating conveying piece is arranged at the discharging end of the conveying roller way, an opening mechanism used for supporting the inner circumferential wall of a glass tube bottle opening is arranged on the circulating conveying piece, the opening mechanism comprises a mounting ring frame rotationally connected to the circulating conveying piece and an opening rod arranged on the mounting ring frame in a sliding mode, and the conveying roller way comprises rollers. A main shaft of the mounting ring frame is parallel to a main shaft of the roller, and the opening rod is configured to move in the radial direction of the mounting ring frame after moving so as to abut against the inner circumferential wall of the bottle opening and drive the glass tube to rotate. According to the technical scheme, the technical problem that the bottom of the test tube is not flat easily when the test tube is cut by flame in the prior art is solved.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of test tube processing, and in particular, to a molding device for test tube processing. Background Art

[0002] A test tube is a small glass container widely used in the medical field. In the processing of test tubes, the molding process is the core link, involving key steps such as heating and softening, drawing and cutting of glass tube raw materials.

[0003] Before the test tube is drawn and formed, the first cutting is performed. This cutting will cut the entire tube into sections, each section contains two test tubes, and its shape is as follows: Figure 1 As shown, two test tubes are connected bottom to bottom, and then cut again, and the two test tubes are cut off by flame, and divided into two. The position where the flame burns is the bottom connection position of the two test tubes, but in the prior art, the test tubes are often burned by flames while being stationary, and the flame acts on the bottle body from bottom to top, that is, only the bottom of the bottle body is heated until it is burned off, so that the bottom of the test tube divided into two often has problems of being rough and uneven, affecting product quality.

[0004] Therefore, it is necessary to improve the structure when using flame cutting to solve the above problems. Summary of the invention

[0005] In order to overcome the above defects, the present invention provides a forming device for test tube processing, which solves the technical problem in the related art that the bottom of the test tube is prone to unevenness when it is cut by flame.

[0006] A forming device for test tube processing, comprising a conveying roller, a circulating conveying member, a flamethrower and a propping mechanism, wherein the conveying roller is used for intermittently conveying a glass tube, the flamethrower is arranged below the conveying roller and is used for heating the glass tube, the circulating conveying member is arranged at the discharge end of the conveying roller, the circulating conveying member is provided with the propping mechanism for supporting the inner circumferential wall of the bottle mouth of the glass tube, the propping mechanism comprises a mounting ring frame rotatably connected to the circulating conveying member, and a propping rod slidably arranged on the mounting ring frame, the main axis of the mounting ring frame is parallel to the main axis of the conveying roller, and the propping rod is configured to move along the radial direction of the mounting ring frame after moving to support the inner circumferential wall of the bottle mouth to drive the glass tube to rotate.

[0007] For example, at least one embodiment of the present invention provides a forming device for test tube processing, wherein the expansion rod has a rack, and the mounting ring frame is also rotatably provided with a gear, the gear meshes with the rack to drive the expansion rod to move radially along the mounting ring frame.

[0008] For example, in at least one embodiment of the present invention, a forming device for test tube processing is provided, wherein there are a plurality of the expansion rods and the gears, which are distributed at intervals along the circumference of the mounting ring frame, and adjacent gears are driven by universal joint couplings.

[0009] For example, at least one embodiment of the present invention provides a forming device for test tube processing, wherein a telescopic mechanism is rotatably provided on the circulating conveyor, and the telescopic mechanism includes an outer shell rotatably arranged on the circulating conveyor, a telescopic member 1 movably arranged in the outer shell and hollow inside, and a telescopic member 2 movably arranged inside the telescopic member 1, the main axis of the outer shell, the telescopic direction of the telescopic member 1, and the telescopic direction of the telescopic member 2 are all arranged perpendicular to the conveying direction of the conveying roller, the mounting ring frame is arranged at the outer end of the telescopic member 1, and can move and rotate with the telescopic member 1, the mounting ring frame is coaxially arranged with the outer shell, the outer wall of the telescopic member 2 has a conical surface that gradually converges toward one side of the mounting ring frame, and the telescopic member 2 is configured so that after moving, the conical surface abuts and gradually pushes the stretching rod to move, so that the stretching rod is supported on the inner wall of the bottle mouth.

[0010] For example, in at least one embodiment of the present invention, a forming device for test tube processing is provided, wherein the mounting ring frame is further provided with an elastic member, and the elastic member acts on the spreading rod to drive the spreading rod to move toward the axial center side of the mounting ring frame.

[0011] For example, at least one embodiment of the present invention provides a molding device for test tube processing, characterized in that a rotating part is rotatably provided inside the outer shell, the rotating part has an external thread, a flange is connected to the inner side of the telescopic part, the flange has a threaded hole, the external thread is threadedly matched with the threaded hole to drive the telescopic part to move axially, an inner groove is provided on the inner wall of the outer shell, an outer convex portion is provided on the outer wall of the telescopic part, the outer convex portion is located in the inner groove, and is used to lock the circumferential position of the telescopic part and the outer shell.

[0012] For example, at least one embodiment of the present invention provides a forming device for test tube processing, wherein the flange plate also has an annular limiting ring, and the annular limiting ring is outerly provided with a transmission member 1, so that the transmission member 1 moves with the telescopic member 1, the transmission member 1 is hollow inside and communicates with the threaded hole 1, the rotating member passes through the threaded hole 1 and extends into the transmission member 1, the transmission member 1 has an inner protrusion on the inner wall, and the rotating member also has an outer slide groove on the outer wall, and the inner protrusion is located in the outer slide groove 1, so that the transmission member 1 rotates with the rotating member, the transmission member 1 also has an external thread 2 on the outer wall, the telescopic member 2 has a threaded hole 2, and the external thread 2 is threadedly arranged with the threaded hole 2 for driving the telescopic member 2 to move, the telescopic member 1 has an inner slide groove 2 on the inner wall, and the telescopic member 2 has an outer convex portion 2 on the outer wall, and the outer convex portion 2 is located in the inner slide groove 2, for circumferentially limiting the telescopic member 2.

[0013] For example, in at least one embodiment of the present invention, a forming device for test tube processing is provided, wherein there are a plurality of elastic members, and the plurality of elastic members are arranged in a one-to-one correspondence with the plurality of spreading rods.

[0014] For example, at least one embodiment of the present invention provides a forming device for test tube processing, wherein the conveying roller includes a roller and a conveying wheel mounted on the roller, and a plurality of the rollers are arranged at intervals along the conveying direction of the conveying roller, and each of the rollers is mounted with a plurality of the conveying wheels arranged along its axial direction, and the conveying wheel has a notch, and the notch is used to receive and intermittently convey the glass tube.

[0015] For example, at least one embodiment of the present invention provides a forming device for test tube processing, wherein the mounting ring frame is further provided with a stopper, and each of the two sides of the expansion rod is provided with a stopper, and a space for limiting the expansion rod is formed between the two stoppers.

[0016] The beneficial effects of the embodiments of the present invention are: In the present invention, the test tube is driven to rotate during flame cutting by the spreading mechanism, so that the connecting position at the bottom of the test tube is evenly heated, which greatly reduces the problem that the bottom of the test tube is not smooth and flat in the prior art. This makes the produced test tubes higher in quality and more in line with the high standards of pharmaceutical packaging, reduces the product scrap rate due to bottom defects, and improves production efficiency; the mounting ring frame of the spreading mechanism is movable and rotatable, and the spreading rod is retractable, which can adapt to the production needs of test tubes of different specifications. Whether it is a change in the bottle mouth diameter or a change in the length of the glass tube, the device can meet the production requirements through simple adjustment, thereby improving the versatility and flexibility of the device and reducing the cost of replacing equipment for enterprises to produce products of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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 describing the embodiments of the present invention. Obviously, the drawings described below are only some exemplary embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on the contents of the exemplary embodiments of the present invention and these drawings without creative work.

[0018] Figure 1 This is a schematic diagram of the structure of a glass tube in one embodiment of the present invention; Figure 2 It is a three-dimensional structural schematic diagram of a molding device in one embodiment of the present invention; Figure 3 for Figure 2 A schematic diagram of the structure of a circulating conveyor in an embodiment of the present invention; Figure 4 for Figure 3 The structural schematic diagram of the enlarged part B in the middle; Figure 5 It is a structural schematic diagram of a propping mechanism in one embodiment of the present invention; Figure 6 It is a structural schematic diagram of a telescopic mechanism in one embodiment of the present invention; Figure 7 for Figure 2 The structural schematic diagram of the enlarged part A in the middle; In the figure: 1. conveying roller, 11. conveying wheel, 111. notch; 2. Circular conveyor parts, 3. Glass tube, 31. Bottle mouth 4. opening mechanism, 41. mounting ring frame, 42. opening rod, 421. rack, 44. gear, 45. universal joint coupling, 46. elastic member, 47. stopper; 5. telescopic mechanism, 51. housing, 511. inner slide groove one, 52. telescopic member one, 521. threaded hole one, 522. outer protrusion one, 523. inner slide groove two, 524. flange, 53. telescopic member two, 531. conical surface, 532. threaded hole two, 533. outer protrusion two, 54. rotating member, 541. outer thread one, 542. outer slide groove, 55. annular limit ring, 56. transmission member one, 561. inner protrusion, 562. outer thread two. DETAILED DESCRIPTION

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention.

[0020] In order to simplify the drawings, only the parts related to the disclosure are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0021] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0023] In the description of this embodiment, terms such as "up", "down", "left", and "right" and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0025] like Figure 1 As shown, it shows the structure of the glass tube in the present invention, such as Figure 2~Figure 5As shown, a test tube processing molding device in one embodiment of the present invention is shown. In some examples, in an actual test tube production workshop, the test tube processing molding device is orderly placed in the production line. The conveying roller 1 is a long track composed of multiple rollers, extending along the direction of the production line. The circulating conveyor 2 is arranged between the rollers of the conveying roller 1. It can be a component with cyclic motion characteristics such as a chain or a belt, which is driven by a motor to achieve cyclic rotation. When production starts, the glass tube 3 is placed on the conveying roller 1. The conveying roller 1 performs intermittent conveying according to a preset program. Under the conveying roller 1, flamethrowers are evenly arranged. According to the position and heating requirements of the glass tube 3, the flamethrower timely sprays flames to heat the glass tube 3, cuts the glass tube 3 into two, and produces a test tube.

[0026] The circulating conveyor 2 also rotates intermittently, synchronously with the conveying roller 1. The opening mechanism 4 on the circulating conveyor 2 starts to work when the glass tube 3 is conveyed to the cutting position. When the glass tube 3 reaches the cutting position, the mounting ring frame 41 moves along the direction parallel to the axial direction of the roller rotation of the conveying roller 1 under the action of the driving device, close to the bottle mouth 31 at the end of the glass tube 3. When the mounting ring frame 41 moves to the inside of the bottle mouth 31, the opening rod 42 on the side wall of the mounting ring frame 41 is pushed by another driving device, and moves in the direction perpendicular to the axial direction of the roller rotation of the conveying roller 1. The inner wall of the bottle mouth 31 of the glass tube 3 moves until it supports the inner wall of the bottle mouth 31 of the glass tube 3. Then, an external driving device can be used to drive the mounting ring frame 41 to rotate. Since the support rod 42 supports the glass tube 3, the glass tube 3 will rotate with the rotation of the mounting ring frame 41 to achieve self-rotation. The flamethrower sprays flames to heat the bottom connection position of the glass tube 3. At this time, the rotating glass tube 3 enables its heated position to be evenly heated. Under the continuous heating of the flame, the glass tube 3 gradually softens at the bottom connection position and is finally smoothly cut off to form two independent test tubes.

[0027] For example, Figure 5 As shown, the advantage of such a configuration is that the product quality is improved: the test tube is driven to rotate during flame cutting by the opening mechanism 4, so that the connection position at the bottom of the test tube is evenly heated, which greatly reduces the problem that the bottom of the test tube is not smooth and flat in the prior art, so that the produced test tubes are of higher quality and more in line with the high standards of pharmaceutical packaging, reduce the product scrap rate due to bottom defects, and improve production efficiency; enhance the adaptability of the device: the mounting ring frame 41 of the opening mechanism 4 is movable and rotatable, and the opening rod 42 is retractable, which can adapt to the production needs of test tubes of different specifications. Whether it is a change in the diameter of the bottle mouth 31 or a change in the length of the glass tube 3, the device can meet the production requirements through simple adjustments, thereby improving the versatility and flexibility of the device and reducing the cost of replacing equipment for enterprises to produce products of different specifications.

[0028] like Figure 2~Figure 5 As shown, a forming device for test tube processing in one embodiment of the present invention is shown. In some examples, in the actual production scenario of a test tube production workshop, when the glass tube 3 of the test tube is conveyed to the cutting position, the transmission structure related to the opening mechanism 4 begins to function, and the mounting ring frame 41 is driven by an external drive to approach the glass tube 3. After the opening rod 42 is extended into the bottle mouth 31 of the glass tube 3, the gear 44 rotatably arranged on the side wall of the mounting ring frame 41 begins to operate. For example, a small motor is provided to drive the gear 44 to rotate. When the motor is started, the output shaft of the motor drives the gear 44 to rotate. Since the gear 44 is meshed with the rack 421 on the opening rod 42, as the gear 44 rotates, the opening rod 42 will move in a direction perpendicular to the rotation axis of the roller of the conveying roller 1, that is, in a direction close to the inner wall of the bottle buckle, until the inner wall of the bottle mouth 31 is supported.

[0029] For example, Figure 5 As shown, the advantage of such a setting is that it is convenient to control the position of the opening rod 42: the meshing transmission of the gear 44 and the rack 421 of the opening rod 42 can more accurately control the moving distance of the opening rod 42, and by controlling the number of revolutions or angles of the motor driving the gear 44, the extension length of the opening rod 42 can be accurately adjusted, thereby adapting to the size of the bottle mouth 31 of test tubes of different specifications, improving the adaptability of the molding device to various product specifications, and enhancing the versatility of the device. Enhance the stability of the opening rod 42: This meshing transmission method makes the opening rod 42 more stable when supporting the glass tube 3. During the test tube cutting process, it can effectively resist the various forces generated when the glass tube 3 rotates, avoid the opening rod 42 from loosening or displacement, and ensure the stability of the glass tube 3 during the rotation and heating process, thereby improving the cutting quality and reducing product defects caused by the instability of the opening rod 42.

[0030] like Figure 2~Figure 5 As shown, it shows a test tube processing forming device in one embodiment of the present invention. In some examples, in an actual test tube production line, when the glass tube 3 is conveyed to the cutting station, the spreading rods 42 and gears 44 spaced apart in a circle on the mounting ring 41 start to work together. When the mounting ring 41 is close to the glass tube 3, an external drive such as a motor drives one of the gears 44 to rotate, and this gear 44 transmits power to the adjacent gear 44 through the universal joint coupling 45. Since the universal joint coupling 45 can transmit torque at different angles, even if the mounting ring 41 produces a slight angle change during the movement, the stable transmission of power can be ensured. In this way, a circle of gears 44 all start to rotate, thereby driving the spreading rods 42 meshing therewith to move synchronously toward the inner wall of the bottle mouth 31 of the glass tube 3.

[0031] For example, Figure 5As shown, the advantage of such a setting is that the support stability of the glass tube 3 is enhanced: a circle of spaced-apart support rods 42 can support the inner wall of the bottle mouth 31 of the glass tube 3 more evenly, so that the force of each part of the glass tube 3 is balanced during the rotation process, effectively avoiding the shaking caused by local uneven force, greatly enhancing the stability of the rotation of the glass tube 3 during flame cutting, thereby improving the quality of the cutting of the bottom of the test tube, ensuring that the bottom of the test tube after cutting is smoother and flatter, and reducing the defective rate of the product. Improve the reliability and maintainability of the equipment: when a certain support rod 42 or gear 44 fails, other components can maintain the rotation of the glass tube 3, ensuring that the production will not be interrupted immediately, and improving the reliability of the equipment. At the same time, the spaced-apart layout facilitates the operator to inspect and maintain each component, reduces the difficulty of maintenance, extends the service life of the equipment, reduces the production downtime caused by equipment failure, and improves production efficiency. Optimize power transmission: The universal joint coupling 45 transmits power between adjacent gears 44, and can adapt to the small angle changes caused by the mounting ring frame 41 during movement and work, ensuring the stability and continuity of power transmission. This optimized power transmission method ensures that all the spreading rods 42 can work synchronously and stably, further improves the stability of the support and rotation of the glass tube 3, and helps to improve the processing quality of the test tube.

[0032] like Figure 2~Figure 6As shown, it shows a forming device for test tube processing in one embodiment of the present invention. In some examples, a telescopic mechanism 5 is also provided. Only the telescopic mechanism 5 can be used to successively realize the movement of the mounting ring frame 41, the movement of the propping rod 42 and the rotation of the mounting ring frame 41. There is no need to set up multiple external drives, thus avoiding the problem of difficulty in finding an installation position due to limited space. When a batch of glass tubes 3 are intermittently conveyed to the cutting station by the conveying roller 1, the circulating conveying member 2 moves synchronously with the telescopic mechanism 5 to the corresponding position, and then the telescopic member 1 52 moves in the direction close to the glass tube 3, driving the mounting ring frame 41 to approach the bottle mouth 31 of the glass tube 3, until the mounting ring frame 41 enters the bottle mouth 31, and the telescopic member 1 52 stops moving. While the telescopic member 1 52 moves, the telescopic member 2 53 also moves synchronously. Since the outer wall of the telescopic member 2 53 has a tapered surface 531 facing the mounting ring frame 41, as the telescopic member 2 53 moves, the tapered surface 531 gradually approaches the center position of the mounting ring frame 41, abuts against the propping rod 42 and continues to move, gradually pushing the propping rod 42 to move along the direction perpendicular to the axial direction of the roller rotation of the conveying roller 1, that is, toward the inner wall of the bottle mouth 31 of the glass tube 3, and then the propping rod 42 gradually supports the inner wall of the bottle mouth 31 of the glass tube 3, and finally the outer shell 51 rotates as a whole, driving the glass tube 3 to rotate. That is, the first telescopic member 52 is used to drive the mounting ring frame 41 to move to the inside of the bottle mouth 31 at the end of the glass tube 3, and then the second telescopic member 53 drives the propping rod 42 to move and support the inner wall of the bottle mouth 31 of the glass tube 3, and finally the outer shell 51 drives the whole to rotate and drive the glass tube 3 to rotate, so that the cutting position is heated evenly, reducing the problem of unevenness after breaking.

[0033] For example, Figure 6 As shown, the advantage of such an arrangement is that it provides stable support: the telescopic mechanism 5 pushes the propping rod 42 through the conical surface 531 of the telescopic part 2 53, so that the propping rod 42 stably and synchronously supports the inner wall of the bottle mouth 31 of the glass tube 3. This stable supporting method ensures that the glass tube 3 is subjected to uniform force during rotation, avoiding shaking or cracking of the glass tube 3 due to uneven force, thereby improving the cutting quality of the test tube and reducing the defective rate; optimizing the compactness and flexibility of the structure: the telescopic mechanism 5 adopts a multi-layer telescopic structure, and the mounting ring frame 41 is coaxial with the outer shell 51. This design makes the entire structure more compact and occupies less space; improving the convenience and reliability of operation: the operation of the telescopic mechanism 5 is achieved by controlling the movement of the telescopic part 1 52 and the telescopic part 2 53 through a driving device, and the operation is simple and convenient.

[0034] like Figure 2~Figure 6As shown, it shows a forming device for test tube processing in one embodiment of the present invention. In some examples, the elastic member 46 can be a spring. After the conical surface 531 of the telescopic member 53 abuts against the support rod 42, it is necessary to overcome the elastic force of the elastic member 46 to continue to push the support rod 42 to move. When the telescopic member 53 is reset, the support rod 42 can automatically reset under the elastic force of the elastic member 46, and no longer support the glass tube 3, so as to be driven to move and detach from the bottle mouth 31 of the glass tube 3 later.

[0035] For example, Figure 4 As shown, the advantage of such a configuration is that the stretching rod 42 can be reliably reset: the elastic member 46 provides a reliable force for the stretching rod 42 to approach the center point, ensuring that after the telescopic member 2 53 is out of contact with the stretching rod 42, the stretching rod 42 can quickly and accurately cancel the support for the inner wall of the bottle mouth 31 of the glass tube 3 and return to the initial position without interfering with the subsequent transportation of the glass tube 3.

[0036] like Figure 2~Figure 6 As shown, it shows a forming device for test tube processing in one embodiment of the present invention. In some examples, the specific working principle of the telescopic member 52 is that the rotating member 54 rotates in the outer shell 51. Since the rotating member 54 has an external thread 541 and is threadedly matched with the threaded hole 521 of the telescopic member 52, it is consistent with the principle of the ball screw. As the rotating member 54 rotates, the telescopic member 52 moves in the outer shell 51 along a direction parallel to the rotation axis of the outer shell 51.

[0037] For example, Figure 6 As shown, the advantage of such a setting is that it is easy to control the movement of the telescopic member 52: through the thread setting of the external thread 541 of the rotating member 54 and the threaded hole 521 of the telescopic member 52, the extension and retraction length of the telescopic member 52 can be easily controlled. The operator only needs to control the number of rotations of the rotating member 54 to more accurately adjust the position of the telescopic member 52 to meet the production needs of test tubes of different specifications, thereby improving the adaptability of the equipment to various product specifications; the stability of the movement of the telescopic member 52 is enhanced: the circumferential limit design of the outer protrusion 522 in the inner slide groove 511 enables the telescopic member 52 to only move along the axial direction during the movement, effectively avoiding the circumferential rotation that may be caused by the threaded transmission, thereby enhancing the stability of the movement of the telescopic member 52. During the test tube processing, this stability ensures the accuracy of the position of the glass tube 3 during rotation cutting, which helps to improve product quality and reduce cutting defects caused by the instability of the telescopic member 52.

[0038] like Figure 2~Figure 6As shown, it shows a forming device for test tube processing in an embodiment of the present invention. In some examples, the specific working principle of the telescopic member 53 is that the external thread 541 of the rotating member 54 cooperates with the threaded hole 521 of the telescopic member 52, so that the telescopic member 52 moves axially. At the same time, due to the socket connection relationship between the annular limit ring 55 and the transmission member 56, the transmission member 56 moves with the telescopic member 52, and the rotating member 54 passes through the threaded hole 521 and extends into the transmission member 56. The inner protrusion 561 of the inner wall of the transmission member 56 is located in the outer groove 542 of the outer wall of the rotating member 54. Therefore, the transmission member 56 also rotates with the rotating member 54, and the external thread 562 of the transmission member 56 is threadedly matched with the threaded hole 532 of the telescopic member 53. As the transmission member 56 rotates, the telescopic member 53 moves axially in the telescopic member 52. The second outer protrusion 533 of the outer wall of the second telescopic member 53 slides in the second inner slide groove 523 to limit its circumferential rotation, thereby ensuring that the second telescopic member 53 only moves in the axial direction.

[0039] For example, Figure 6 As shown, the advantages of such a setting are that the transmission structure is optimized: only one driving source, i.e., the rotating member 54, can be used to realize the simultaneous movement of the telescopic member 1 52 and the telescopic member 2 53, without the need for multiple external drives, making the entire structure more compact, occupying less space, and reducing costs; improving the stability of the equipment: the limiting structure between the components, such as the cooperation between the inner slide groove and the outer convex part, effectively limits the circumferential rotation of the telescopic member during the movement process, and enhances the stability of the entire telescopic mechanism 5. In the test tube processing process, this stability ensures the stability of the glass tube 3 during rotation cutting, reduces cutting defects caused by component shaking, and improves product quality and equipment reliability.

[0040] like Figure 7 As shown, a test tube processing forming device in one embodiment of the present invention is shown. In some examples, the notch 111 on the conveying wheel 11 is designed so that the glass tube 3 is conveyed downward once every rotation, thereby realizing intermittent conveying of the glass tube 3. For thinner glass tubes 3, a conveying wheel 11 with a smaller notch 111 can be used; for thicker glass tubes 3, a conveying wheel 11 with a larger notch 111 can be used. At the same time, the pause and start time of the motor can be adjusted according to the dwell time required for different processing steps. For example, when producing small-diameter test tubes, since the glass tube 3 is thinner and the heating time is relatively short, the interval time of the motor controlling the roller to rotate can be appropriately shortened; while when producing large-diameter test tubes, the glass tube 3 is thicker and the heating time is longer, and the interval time of the motor controlling the roller to rotate is correspondingly extended to ensure that the glass tube 3 can be fully heated and other processing is performed.

[0041] like Figure 5As shown, it shows a test tube processing molding device in one embodiment of the present invention. In some examples, the stopper 47 limits the movement of the support rod 42, so that the support rod 42 always maintains a stable supporting state during the rotation of the glass tube 3.

[0042] For example, during flame cutting, the glass tube 3 rotates at a certain speed. If the support rod 42 is not limited by the stopper 47, the glass tube 3 may be displaced due to the centrifugal force or other external forces when it rotates, causing the glass tube 3 to shake, affecting the cutting quality. The presence of the stopper 47 ensures that the support rod 42 stably supports the glass tube 3, so that the glass tube 3 maintains a stable posture during the rotation process, and the flame can evenly act on the bottom connection position of the glass tube 3.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A molding device for test tube processing, characterized in that: The invention comprises a conveying roller (1), a circulating conveying member (2), a flamethrower and a propping mechanism (4), wherein the conveying roller (1) is used for intermittently conveying a glass tube (3), the flamethrower is arranged below the conveying roller (1) and is used for heating the glass tube (3), the circulating conveying member (2) is arranged at the discharge end of the conveying roller (1), and the propping mechanism (4) is provided on the circulating conveying member (2) and is used for supporting the inner peripheral wall of the bottle mouth (31) of the glass tube (3), The spreading mechanism (4) comprises a mounting ring frame (41) rotatably connected to the circulating conveyor (2), and a spreading rod (42) slidably arranged on the mounting ring frame (41); the conveying roller (1) comprises a roller; the main axis of the mounting ring frame (41) is parallel to the main axis of the roller; and the spreading rod (42) is configured to move along the radial direction of the mounting ring frame (41) to support the inner peripheral wall of the bottle mouth (31) after moving, so as to drive the glass tube (3) to rotate.

2. A test tube forming device according to claim 1, characterized in that: The spreading rod (42) is provided with a rack (421), and the mounting ring frame (41) is also rotatably provided with a gear (44), the gear (44) being meshed with the rack (421) to drive the spreading rod (42) to move radially along the mounting ring frame (41).

3. A test tube forming device according to claim 2, characterized in that: There are a plurality of the spreading rods (42) and the gears (44), which are spaced apart along the circumference of the mounting ring frame (41), and adjacent gears (44) are driven via a universal joint coupling (45).

4. A test tube forming device according to claim 1, characterized in that: The circulating conveying member (2) is rotatably provided with a telescopic mechanism (5), the telescopic mechanism (5) comprising a housing (51) rotatably provided on the circulating conveying member (2), a telescopic member 1 (52) movably provided in the housing (51) and having a hollow interior, and a telescopic member 2 (53) movably provided in the interior of the telescopic member 1 (52), the main axis of the housing (51), the telescopic direction of the telescopic member 1 (52), and the telescopic direction of the telescopic member 2 (53) are all arranged perpendicular to the conveying direction of the conveying roller (1), and the mounting ring is provided. The frame (41) is arranged at the outer end of the telescopic member 1 (52) and can move and rotate with the telescopic member 1 (52). The mounting ring frame (41) is coaxially arranged with the outer shell (51). The outer wall of the telescopic member 2 (53) has a conical surface (531) which gradually converges toward one side of the mounting ring frame (41). After the telescopic member 2 (53) moves, the conical surface (531) abuts against and gradually pushes the opening rod (42) to move, so that the opening rod (42) is supported on the inner peripheral wall of the bottle mouth (31).

5. A test tube forming device according to claim 4, characterized in that: An elastic member (46) is also provided on the mounting ring frame (41), and the elastic member (46) acts on the spreading rod (42) to drive the spreading rod (42) to move toward the axial center side of the mounting ring frame (41).

6. A test tube forming device according to claim 4, characterized in that A rotating member (54) is rotatably provided inside the housing (51), and the rotating member (54) has an external thread (541). A flange (524) is connected to the inner side of the telescopic member (52), and the flange (524) has a threaded hole (521). The external thread (541) is threadedly matched with the threaded hole (521) to drive the telescopic member (52) to move axially. An inner groove (511) is provided on the inner wall of the housing (51), and an outer convex portion (522) is provided on the outer wall of the telescopic member (52). The outer convex portion (522) is located in the inner groove (511) and is used to lock the circumferential position of the telescopic member (52) and the housing (51).

7. A test tube forming device according to claim 6, characterized in that: The flange (524) also has an annular limiting ring (55), and the outer shell of the annular limiting ring (55) is provided with a transmission member (56), so that the transmission member (56) moves with the telescopic member (52), the transmission member (56) is hollow inside and communicates with the threaded hole (521), the rotating member (54) passes through the threaded hole (521) and extends into the transmission member (56), the transmission member (56) has an inner protrusion (561) on the inner wall, and the rotating member (54) also has an outer sliding groove (542) on the outer wall, the inner protrusion (561) is located in the outer sliding groove (542), so that the transmission member (56) can move with the telescopic member (52), and the transmission member (56) can move with the telescopic member (52). The moving member (56) rotates with the rotating member (54), the outer wall of the transmission member (56) also has an external thread (562), the flange plate connected to the telescopic member (53) has a threaded hole (532), the external thread (562) and the threaded hole (532) are threadedly arranged to drive the telescopic member (53) to move, the inner wall of the telescopic member (52) has an inner groove (523), the outer wall of the telescopic member (53) has an outer convex portion (533), the outer convex portion (533) is located in the inner groove (523), and is used to limit the circumferential position of the telescopic member (53).

8. A test tube forming device according to claim 5, characterized in that: There are a plurality of elastic members (46), and the plurality of elastic members (46) are arranged in a one-to-one correspondence with the plurality of spreading rods (42).

9. A test tube forming device according to claim 1, characterized in that: The conveying roller (1) further comprises a conveying wheel (11) sleeved on the roller, a plurality of the rollers being arranged at intervals along the conveying direction of the conveying roller (1), each roller being sleeved with a plurality of the conveying wheels (11) arranged along its axial direction, the conveying wheel (11) having a notch (111), the notch (111) being used to receive and intermittently convey the glass tube (3).

10. A test tube forming device according to claim 1, characterized in that: The mounting ring frame (41) is also provided with a stopper (47), one stopper (47) being arranged on each side of each of the spreading rods (42), and a space for limiting the position of the spreading rods (42) is formed between the two stoppers (47).

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