Turning device for glass tube conveying

Abstract

The invention relates to the technical field of glass tube conveying equipment, and provides a glass tube conveying turning device which comprises a chain conveying assembly, tooth pieces are arranged on chain links of the chain conveying assembly, a limiting space is formed between every two adjacent tooth pieces, and the limiting spaces are used for containing glass tubes; the rotating wheels are intermittently and rotationally arranged on the two sides of the chain conveying assembly, the rotating axes of the rotating wheels are parallel to the rotating axis of a chain wheel of the chain conveying assembly, the rotating wheels are provided with a plurality of bearing grooves, openings of the bearing grooves are opposite to the rotating axes of the rotating wheels, and the bearing grooves are used for bearing glass tubes. By means of the technical scheme, the technical problem that in the prior art, when a glass tube slides to a chain conveying device after being cut, the two ends of the glass tube cannot fall between the two adjacent tooth blocks at the same time, and consequently the glass tube inclines is solved.

Description

Technical Field

[0001] Embodiments of the present invention relate to the technical field of glass tube conveying equipment, and specifically, to a turning device for glass tube conveying. Background Art

[0002] After being cut, glass tubes need to be transported to the next process. During the transfer process between glass tube processes, a glass tube conveying device is required. The glass tube conveying device can intermittently convey glass tubes to the next process. In some workshops, due to space problems, the conveying direction of glass tubes needs to be changed by a rotating conveying device.

[0003] In the prior art, chain conveying equipment is usually used to convey glass tubes. To ensure the stability of glass tubes during conveying, tooth blocks are usually added to the chain links. A glass tube is limited between every two adjacent tooth blocks. For example, a glass tube production line conveying device with the publication number CN114132692A uses tooth blocks to ensure the stability of glass tubes during conveying, but there are two problems in actual use. One is that when the cut glass tube slides onto the chain conveyor under the action of gravity, due to the long length of the glass tube, uneven force will cause a deviation in the falling time of both ends of the glass tube, and finally the two ends of the glass tube will fall between two non-corresponding tooth blocks, causing the tooth blocks to convey in an inclined state, which is not only not conducive to the subsequent output of glass tubes, but may also cause damage to the glass tubes. Another problem is that due to the different distances of the inner and outer circles in the turning section of the conveying device, even glass tubes that are perpendicular to the relative conveying path will become inclined after passing through the turning section. Summary of the Invention

[0004] To overcome the above defects, the present invention provides a turning device for glass tube conveying, which solves the technical problem in the prior art that when a glass tube slides onto a chain conveying device after being cut, the two ends of the glass tube cannot fall between two adjacent tooth blocks at the same time, resulting in the inclination of the glass tube.

[0005] According to one aspect, at least one embodiment of the present invention provides a turning device for glass tube conveying, including: A chain conveying component, on which tooth members are provided on the chain links, and a limiting space is formed between two adjacent tooth members, and the limiting space is used for placing glass tubes; Rotating wheels are intermittently arranged on both sides of the chain conveying assembly. The rotation axis of the rotating wheels is parallel to the rotation axis of the sprockets of the chain conveying assembly. The rotating wheels have a number of receiving grooves, and the openings of the receiving grooves face away from the rotation axis of the rotating wheels. The receiving grooves are used to receive glass tubes. The rotating wheels are configured such that after the receiving grooves with upward openings receive the falling glass tubes, the rotating wheels rotate to make the openings of the receiving grooves face the chain conveying assembly, and the glass tubes in the receiving grooves can fall into the limiting space under the action of gravity; The chain conveying assembly has an ascending section, and the ascending section trends upward along the direction away from the rotating wheels. A clamping plate is provided at the opening of the receiving groove. The clamping plate is configured such that after the opening of the receiving groove faces the ascending section, the clamping plate is parallel to the conveying route of the ascending section. The clamping plate is used to block the glass tubes from falling under the action of gravity, so that the glass tubes in the receiving grooves are pushed by the tooth members into the limiting space.

[0006] For example, in a turning device for glass tube conveying provided by at least one embodiment of the present invention, the chain conveying assembly includes: A first chain conveying device having two parallel first chains. The two first chains are respectively wound around a number of first sprockets. The rotation axis of the first sprockets is parallel to the rotation axis of the rotating wheels. The first chains have the ascending section. The distance between the two first chains is less than the length of the glass tubes. Tooth members are provided on the links of the first chains; A second chain conveying device for turning and conveying glass tubes. The second chain conveying device has a second chain and a third chain. The second chain and the third chain are both arranged in an arc shape. The center of the second chain coincides with the center of the third chain. The second chain is closer to the center than the third chain. Tooth members are provided on both the second chain and the third chain; Two guiding members, which are arc-shaped. The second chain and the third chain slide in the guiding members respectively. The guiding members keep the second chain and the third chain in an arc shape.

[0007] For example, in a turning device for glass tube conveying provided by at least one embodiment of the present invention, the tooth members include: The first tooth blocks, there are several of them, and several of the first tooth blocks are correspondingly arranged on the links of the first chain. The first tooth block has a vertical surface and an inclined surface. The vertical surface is perpendicular to the rotation axis of the first sprocket. One end of the inclined surface coincides with the end of the vertical surface far from the link of the first chain, and the other end gradually moves away from the vertical surface along the direction close to the link of the first chain. Several of the first tooth blocks are divided into several groups, and two adjacent first tooth blocks form a group. The inclined surfaces of the two first tooth blocks in the same group are close to each other, and the vertical surfaces of the first tooth blocks between adjacent groups are close to each other. A limiting space is formed between the inclined surfaces of the two first tooth blocks in the same group; The connecting rod has two ends respectively arranged on the corresponding first tooth blocks of the two first chains. The connecting rod is located at the end of the first tooth block far from the link of the first chain, and the axis of the connecting rod is parallel to the axis of the first sprocket.

[0008] For example, in a turning device for glass tube transportation provided by at least one embodiment of the present invention, the tooth member further includes: The second tooth blocks, there are several of them, and several of the second tooth blocks are correspondingly arranged on the links of the second chain. The second tooth block has the same shape as the first tooth block. Several of the second tooth blocks are divided into several groups, and two adjacent second tooth blocks form a group. The inclined surfaces of the two second tooth blocks in the same group are close to each other, and the vertical surfaces of the second tooth blocks between adjacent groups are close to each other. A limiting space is formed between the inclined surfaces of the two second tooth blocks in the same group; The third tooth blocks, there are several of them, and several of the third tooth blocks are correspondingly arranged on the links of the third chain. The third tooth block has the same shape as the first tooth block. Several of the third tooth blocks are divided into several groups, and two adjacent third tooth blocks form a group. The inclined surfaces of the two third tooth blocks in the same group are close to each other, and the vertical surfaces of the third tooth blocks between adjacent groups are close to each other. There is a single link between the two third tooth blocks in the same group; The supporting block is arranged on the link between the two third tooth blocks in the same group. The limiting space is formed by the inclined surfaces of the two third tooth blocks in the same group and the supporting block. The limiting spaces on the second chain and the third chain correspond to each other one by one.

[0009] For example, in a turning device for glass tube transportation provided by at least one embodiment of the present invention, the second chain conveying device further includes: The second sprocket, and the second chain is wound around and passes through the second sprocket; A third sprocket, around which the third chain is wound. One of the second sprockets, one of the third sprockets, and one of the first sprockets are located on the same drive shaft so that the first chain conveying device and the second chain conveying device operate synchronously.

[0010] For example, in a turning device for conveying glass tubes provided in at least one embodiment of the present invention, the second chain conveying device further includes: A one-way bearing, provided between the second sprocket and the drive shaft, and / or the one-way bearing is provided between the third sprocket and the drive shaft.

[0011] For example, in a turning device for conveying glass tubes provided in at least one embodiment of the present invention, the second chain conveying device further includes: A connecting member, provided on the link of the second chain or the third chain. The second tooth block is provided on the link of the second chain through the connecting member, and the third tooth block and the supporting block are respectively provided on the third chain through the connecting member; The connecting member includes: A main body, for setting the second tooth block, the third tooth block or the supporting block. The main body has an accommodating space for accommodating the positioning pin on the link. A top block, slidably arranged in the accommodating space. The top block is configured such that after sliding, the top block clamps or releases the positioning pin on the link with the side wall of the accommodating space.

[0012] For example, in a turning device for conveying glass tubes provided in at least one embodiment of the present invention, both ends of the guiding member have a first guiding surface, and the connecting member further includes: A side baffle, provided on the main body. The first guiding surface is used to guide the side baffle to the end of the guiding member away from the center of the circle, and the side baffle is used to prevent the second chain or the third chain from abutting against the side wall of the guiding member.

[0013] For example, in a turning device for conveying glass tubes provided in at least one embodiment of the present invention, the guiding member has an extension plate, and the connecting member further includes: A clamping member, provided on the main body. The clamping member has a sliding groove for accommodating the extension plate. The clamping member is configured such that during the operation of the second chain or the third chain, the sliding groove slides against the top and bottom plates of the extension plate from the upper and lower sides respectively, so that the clamping member supports the second chain or the third chain through the extension plate.

[0014] For example, in a turning device for conveying glass tubes provided in at least one embodiment of the present invention, both ends of the clamping member in the conveying direction of the second chain conveying device are flared.

[0015] The beneficial effects of the embodiments of the present invention are as follows: In the present invention, the receiving groove provides a buffer period for the glass tube to fall. The intermittent rotation of the rotating wheel enables the glass tube to adjust to a state parallel to the rotation axis of the rotating wheel under the action of gravity after falling into the receiving groove. The clamping plate has a certain angle with the side wall of the receiving groove. When the opening of the receiving groove faces the ascending section, the clamping plate can prevent the glass tube from sliding along the side wall of the receiving groove towards the chain conveying assembly under the action of gravity. The existence of the ascending section makes it easier for the glass tube to smoothly enter the limiting space under the action of gravity and the pushing of the tooth parts, ensuring that the glass tube falls into the limiting space in a state parallel to the rotation axis of the rotating wheel. Compared with the glass tube directly falling into the limiting space through the inclined plane, it has the characteristics of being more stable and more controllable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments of the present invention. Obviously, the drawings in the following description are only some exemplary embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the content of the exemplary embodiments of the present invention and these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure in an embodiment of the present invention; Figure 2 It is a schematic diagram of a partial structure of the present invention; Figure 3 It is Figure 2 The enlarged schematic diagram of part A in Figure 4 It is Figure 2 The enlarged schematic diagram of part B in Figure 5 It is Figure 2 The enlarged schematic diagram of part C in Figure 6 It is a schematic diagram of another angle of a partial structure of the present invention; Figure 7 It is Figure 6 The enlarged schematic diagram of part C in Figure 8 It is a schematic diagram of the connecting member structure of the present invention; In the figure: 100, chain conveying assembly; 110, limiting space; 120, ascending section; 130, first chain conveying device; 131, first chain; 132, first sprocket; 140, second chain conveying device; 141, second chain; 142, third chain; 143, guiding member; 1431, first guiding surface; 1432, extension plate; 150, second sprocket; 160, third sprocket; 170, one-way bearing; 180, connecting member; 181, main body; 182, accommodating space; 183, top block; 184, side baffle; 185, clamping member; 1851, sliding groove, 200, tooth member; 210, first tooth block; 211, vertical surface; 212, inclined surface; 220, connecting rod; 230, second tooth block; 240, third tooth block; 250, supporting block, 300, rotating wheel; 310, receiving groove; 320, clamping plate. Detailed implementation manners

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention.

[0019] For the sake of simplicity of the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, for the sake of simplicity and easy understanding of the drawings, in some figures, for components with the same structure or function, only one of them is schematically shown, or only one of them is marked. In this article, "one" not only means "only this one", but also means "more than one" situation, and "several" includes "two" and "more than two".

[0020] In this article, 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0021] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0022] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "left", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the 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 thus should not be construed as a limitation to the present invention.

[0023] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0024] As Figures 1 to 8 shown, it shows a turning device for glass tube transportation in an embodiment of the present invention, which is composed of a chain transportation component 100 and a rotating wheel 300. The chain transportation component 100 is responsible for the conventional transportation of the glass tube and the loading during the turning process. The tooth parts 200 on its chain links form a limiting space 110 to hold the glass tube and prevent the glass tube from rolling during transportation. The rotating wheels 300 are arranged on both sides of the axial direction of the chain transportation component 100 to avoid interference with the chain transportation component 100. The rotating wheels 300 solve the problem that the two ends of the glass tube cannot fall into the adjacent tooth parts 200 simultaneously when the glass tube slides down from a high place through intermittent rotation and the receiving groove 310. At the same time, in cooperation with the ascending section 120 and the clamping plate 320 of the chain transportation component 100, it ensures that the glass tube smoothly enters the limiting space 110 and realizes the stable turning transportation of the glass tube.

[0025] The chain conveying assembly 100 uses a high-strength roller chain. The chain links are connected by positioning pins and sleeves. The tooth member 200 can be integrally formed with the chain link or detachably arranged on the positioning pin of the chain link by connection methods such as bolts and clamping members 185. A limiting space 110 is formed between two adjacent tooth members 200. The limiting space 110 is set in a V shape or a trapezoid with a large opening and a small bottom. The way of the large opening and small bottom of the limiting space 110 can make the glass tube easier to enter the limiting space 110 and can also ensure the stability of the glass tube during transportation. The chain conveying assembly 100 is provided with an ascending section 120. The ascending section 120 shows an ascending trend along the direction away from the rotating wheel 300, and the inclination angle is generally between 15° and 30°. This can not only ensure that the tooth member 200 can push the glass tube out of the receiving groove 310, but also prevent the glass tube from falling along the side wall of the limiting space 110 in the ascending section 120.

[0026] The rotating wheels 300 are intermittently rotated and arranged on both sides of the chain conveying assembly 100. Their rotation axes are parallel to the rotation axes of the sprockets of the chain conveying assembly 100, and the rotational support is realized through the bearing seats installed on the brackets. A number of receiving grooves 310 are evenly distributed on the circumferential surface of the rotating wheel 300. The openings of the receiving grooves 310 face away from the rotation axis of the rotating wheel 300. The shape of the receiving groove 310 is U-shaped or V-shaped, and the depth is greater than the diameter of the glass tube to ensure that the glass tube can be stably placed in the receiving groove 310. The number of the receiving grooves 310 is determined according to the diameter of the rotating wheel 300 and the conveying speed of the glass tube.

[0027] A clamping plate 320 is arranged at the opening of the receiving groove 310. The clamping plate 320 is installed on the opening edge of the receiving groove 310 through a pin shaft or a bolt and can rotate around the installation point by a certain angle, which is convenient for the operator to adjust according to the actual situation. When the opening of the receiving groove 310 faces the ascending section 120, the clamping plate 320 is parallel to the conveying path of the ascending section 120. It can not only prevent the glass tube from falling under the action of gravity, but also enable the tooth member 200 to smoothly push the glass tube out of the receiving groove 310.

[0028] The rotating wheel 300 and the chain conveying assembly 100 have two separate drive systems. The rotating wheel 300 is driven by a stepping motor, and the chain conveying assembly 100 is driven by a servo motor to drive the sprocket to rotate.

[0029] Working principle: The cut glass tube falls under the action of gravity. The receiving groove 310 with an upward opening on the rotating wheel 300 just moves below the glass tube to receive the falling glass tube. Since the opening of the receiving groove 310 faces away from the rotation axis of the rotating wheel 300, the glass tube can fall to the bottom of the receiving groove 310 under the action of gravity.

[0030] The rotating wheel 300 starts to rotate under the action of the intermittent rotating mechanism, and gradually turns the glass tube in the receiving groove 310 to the direction of the ascending section 120 of the chain conveying assembly 100. During the rotation process, the glass tube always remains in the receiving groove 310 and will not fall. When the opening of the receiving groove 310 faces the ascending section 120, the glass tube will slide toward the chain conveying assembly 100 along the side wall of the receiving groove 310 under the action of gravity. At this time, the clamping plate 320 located at the mouth of the receiving groove 310 can prevent the glass tube from falling. At this time, the tooth 200 of the chain conveying assembly 100 gradually approaches the glass tube in the receiving groove 310 as the chain moves. When the tooth 200 contacts the glass tube, it continues to move forward, pushing the glass tube to move along the surface of the clamping plate 320, and finally enters the limited space 110.

[0031] After the glass tube enters the limiting space 110, it is transported to the next process as the chain conveyor assembly 100 operates. During the entire conveying process, the toothed member 200 of the chain conveyor assembly 100 limits and supports the glass tube, ensuring the stability of the glass tube during the conveying process and preventing the glass tube from tilting or being damaged due to factors such as turning.

[0032] The receiving groove 310 provides a buffer period for the glass tube to fall. The intermittent rotation of the rotating wheel 300 allows the glass tube to adjust to a state parallel to the rotation axis of the rotating wheel 300 under the action of gravity after falling into the receiving groove 310. The clamping plate 320 has a certain angle with the side wall of the receiving groove 310. When the opening of the receiving groove 310 faces the rising section 120, the clamping plate 320 can prevent the glass tube from sliding along the side wall of the receiving groove 310 to the chain conveying assembly 100 under the action of gravity. The existence of the rising section 120 makes it easier and more stable for the glass tube to enter the limited space 110 under the push of gravity and the toothed member 200, ensuring that the glass tube falls into the limited space 110 in a state parallel to the rotation axis of the rotating wheel 300. Compared with the glass tube directly falling into the limited space 110 through the inclined surface 212, it has the characteristics of being more stable and more controllable.

[0033] In some examples, the chain conveyor assembly 100 is composed of a first chain conveyor device 130 and a second chain conveyor device 140. The first chain conveyor device 130 is responsible for the straight-line conveyance of the glass tube, wherein the ascending section 120 cooperates with the rotating wheel 300 to realize the smooth acceptance and transfer of the glass tube. The second chain conveyor device 140 is specifically used for the turning conveyance of the glass tube, and the arc-shaped second chain 141 and the third chain 142 and the guide member 143 ensure the stability of the glass tube during the turning process.

[0034] The first chain conveyor 130 includes two first chains 131 arranged in parallel. Each first chain 131 is respectively wound around a plurality of first sprockets 132. The rotation axis of the first sprocket 132 is parallel to the rotation axis of the rotating wheel 300 to ensure the coordination of the entire conveying system. The distance between the two first chains 131 is less than the length of the glass tube to ensure effective support of the glass tube during transportation. Each link of the first chain 131 is provided with a tooth member 200. The tooth member 200 is connected to the link on the first chain 131 by means of integral molding, bolt connection, snap connection, etc. By adjusting the position of the first sprocket 132, the conveying path of the first chain 131 can be adjusted. By placing a first sprocket 132 at a position higher than other first sprockets 132, an ascending section 120 and a descending section can be formed. The ascending section 120 is used to receive the glass tube in the rotating wheel 300, and the descending section partially coincides with the second chain conveyor 140 and is used to place the glass tube on the second chain conveyor 140.

[0035] The second chain conveyor 140 is used to realize the turning transportation of the glass tube and has a second chain 141 and a third chain 142. Both the second chain 141 and the third chain 142 are arranged in an arc shape, and the center of the second chain 141 coincides with the center of the third chain 142. The second chain 141 is closer to the center than the third chain 142. Tooth members 200 are also provided on the links of the second chain 141 and the third chain 142.

[0036] To maintain the arc shape of the second chain 141 and the third chain 142, the two chains slide in the guide member 143 in a one-to-one correspondence. The arc shape of the guide member 143 completely matches the arc shapes of the second chain 141 and the third chain 142. By abutting against the first chain 131 or the second chain 141 in the direction close to the circle, the guide member 143 can play a role in guiding the movement trajectory of the chain and ensure the stability of the glass tube during the turning process. The guide member 143 is fixed to the equipment frame by bolts or welding to ensure its reliability during operation.

[0037] The first chain conveyor 130 is powered by a variable-frequency motor. The motor is connected to the reducer through a coupling, and the reducer then drives the first sprocket 132 to rotate through chain or belt transmission.

[0038] In some examples, the tooth member 200 includes a first tooth block 210 and a connecting rod 220. The first tooth block 210 is made of high-strength, wear-resistant engineering plastic or wood, and the material itself has a certain buffering property to avoid bumping and damaging the glass tube. The first tooth block 210 has a vertical surface 211 and an inclined surface 212. The vertical surface 211 is perpendicular to the rotation axis of the first sprocket 132. During the installation process of the first tooth block 210 and the chain link, the vertical surface 211 can be used as a reference for positioning, ensuring the accuracy of the installation of the first tooth block 210. One end of the inclined surface 212 coincides with the end of the vertical surface 211 away from the chain link of the first chain 131, and the other end gradually moves away from the conveying surface in the direction close to the chain link of the first chain 131, forming an inclined guiding surface. This inclined surface 212 helps to guide the glass tube into the limiting space 110 smoothly. When the glass tube falls from the receiving groove 310 of the rotating wheel 300, the inclined surface 212 can play a buffering and guiding role, avoiding rigid collision between the glass tube and the tooth block and reducing the risk of glass tube damage.

[0039] A number of first tooth blocks 210 are arranged on the chain links of the first chain 131 in one-to-one correspondence and are divided into several groups. Every two adjacent first tooth blocks 210 form a group. The inclined surfaces 212 of the two first tooth blocks 210 in the same group are close to each other, and the vertical surfaces 211 of the first tooth blocks 210 between adjacent groups are close to each other. A limiting space 110 is formed between the inclined surfaces 212 of the two first tooth blocks 210 in the same group.

[0040] The two ends of the connecting rod 220 are respectively arranged on the corresponding first tooth blocks 210 of the two first chains 131, and are located at the end of the first tooth block 210 away from the chain link of the first chain 131. Its axis is parallel to the axis of the first sprocket 132. The connecting rod 220 plays a role in connecting and strengthening the corresponding first tooth blocks 210 on the two first chains 131, making the tooth blocks on the two chains form a whole. This not only facilitates the corresponding positioning of the installers, but also the connecting rod 220 can play a role in pushing the glass tube in the receiving groove 310, making the force on the glass tube more uniform and further enhancing the stability of the glass tube during the transfer process.

[0041] The two ends of the connecting rod 220 respectively penetrate through the positioning holes on the two first tooth blocks 210 and are fastened to the first tooth blocks 210 by nuts.

[0042] In some examples, the tooth member 200 further includes a second tooth block 230, a third tooth block 240 and a supporting block 250. The second tooth block 230 and the third tooth block 240 have the same structure and material as the first tooth block 210. Among them, the arrangement method of the second tooth block 230 is also the same as that of the first tooth block 210. One second tooth block 230 is arranged on each chain link of each second chain 141. The second tooth blocks 230 are also grouped in pairs. The inclined surfaces 212 of the two second tooth blocks 230 in the same group are close to each other and form a limiting space 110.

[0043] The arrangement of the third tooth block 240 is different from that of the first tooth block 210 and the second tooth block 230. Only two of the three adjacent links of the third chain 142 are provided with the third tooth block 240, and the other link is provided with a supporting block 250. Two adjacent third tooth blocks 240 and the supporting block 250 located between the two third tooth blocks 240 form a group and form a limiting space 110. The existence of the supporting block 250 extends the limiting space 110 on the third chain 142 when the shape of the third tooth block 240 is the same as that of the first tooth block 210 and the second tooth block 230. When the third chain 142 has a longer circulation path, it can ensure that the number of limiting spaces 110 on the third chain 142 is the same as and corresponds one by one to the limiting spaces 110 on the second chain 141, so that the state of the glass tube at the opening position and the outlet position of the second chain conveying device 140 is only a change of translation along the conveying path of the second chain conveying device 140.

[0044] In some examples, the second chain conveying device 140 further includes a second sprocket 150 and a third sprocket 160. Both the second sprocket 150 and the third sprocket 160 are located at the inlet end and the outlet end of the second chain conveying device 140, which not only plays the role of winding the second chain 141 or the third chain 142 to form a chain circulation, but also has the role of power transmission.

[0045] A second sprocket 150, a third sprocket 160, and a first sprocket 132 are located on the same drive shaft so that the first chain conveying device 130 and the second chain conveying device 140 operate synchronously. The synchronous operation of the first chain conveying device 130 and the second chain conveying device 140 can make the limiting spaces 110 on the first chain conveying device 130 correspond to the limiting spaces 110 on the second chain conveying device 140 at the junction, ensuring that when the glass tube moves to the outlet end of the first chain conveying device 130 within a limiting space 110 of any first chain conveying device 130, it can simultaneously enter a limiting space 110 of the second chain conveying device 140.

[0046] In some examples, the second chain conveying device 140 further includes a one-way bearing 170. The one-way bearing 170 can be arranged either between the second sprocket 150 and the drive shaft, or between the third sprocket 160 and the drive shaft, or even can be arranged between the second sprocket and the drive shaft and between the third sprocket 160 and the drive shaft at the same time. On the one hand, the one-way bearing can enable the driving device to drive the second sprocket 150 and the third sprocket 160 to rotate in one direction through the drive shaft, thereby realizing the conveying of the glass tube. On the other hand, the operator can manually rotate the second sprocket 150 or the third sprocket 160 to adjust the one-to-one correspondence between the limiting spaces 110 on the second chain 141 and the limiting spaces 110 on the third chain 142.

[0047] The one-way bearing 170 helps to improve the convenience of the overall assembly of the device.

[0048] In some examples, the second chain conveying device 140 further includes a connecting member 180. The second tooth block 230 is arranged on the link of the second chain 141 through the connecting member 180, and the third tooth block 240 and the supporting block 250 are respectively arranged on the third chain 142 through the connecting member 180. The connecting member 180 includes a main body 181 and a top block 183. The main body 181 is a block structure and has a receiving space 182 for receiving the positioning pin on the link. The size of the receiving space 182 is larger than the positioning pin on the link. The shape of the top block 183 is adapted to the shape of the receiving space 182. One side surface of the top block 183 is designed with anti-slip lines or tooth-like structures. When the top block 183 slides and clamps the positioning pin with the side wall of the receiving space 182, these lines or tooth-like structures can increase the friction force with the positioning pin and ensure the stability of the connection between the main body 181 and the link. The sliding of the top block 183 can be realized by a operating handle rotatably arranged on the main body 181 and threadedly connected to the top block 183.

[0049] It should be further noted that the method of using the connecting member 180 requires that the positioning pin to be connected is at least 10 - 15 mm longer than the side wall of the link, so that the part of the positioning pin exceeding the side wall can enter the receiving space 182.

[0050] The main body 181 is also provided with a structure for installing the second tooth block 230, the third tooth block 240 or the supporting block 250. For example, screw holes or clamping grooves are machined on the surface of the main body 181, so that the tooth block or the supporting block 250 can be firmly fixed on the main body 181 by means of bolt connection or clamping connection.

[0051] When the tooth block or the supporting block 250 is worn and needs to be replaced, the top block 183 is slid reversely through the operating handle to release the clamping of the positioning pin by the top block 183. At this time, the main body 181 can be removed from the link, and then the new second tooth block 230, the third tooth block 240 or the supporting block 250 can be replaced. After the replacement is completed, the main body 181 is reinstalled on the link according to the installation process, and the positioning pin is clamped, and then it can be put back into use. The replacement of the second tooth block 230, the third tooth block 240 and the supporting block 250 is facilitated by the connecting member 180.

[0052] In some examples, the guide member 143 has first guide surfaces 1431 at both ends, and the connector 180 further includes side baffles 184. The first guide surfaces 1431 are milled or cut during the manufacturing process of the guide member 143, and the main function of the first guide surfaces 1431 is to provide guidance for the side baffles 184 of the connector 180. When the chain moves in the guide member 143, the connector 180 moves with the chain, and the side baffles 184 gradually move toward the end of the guide member 143 away from the center of the circle under the guidance of the first guide surfaces 1431. This helps to ensure that the chain maintains the correct position in the guide member 143, and prevents the chain from excessively abutting against the side wall of the guide member 143 due to deviation, thereby affecting the service life of the chain.

[0053] During use, due to the positions of the second sprocket 150 and the third sprocket 160 and the length restrictions of the second chain 141 and the third chain 142, the second chain 141 and the third chain 142 will bend close to the center of the circle. The side baffle 184 and the guide member 143 provide a reverse force for the second chain 141 and the third chain 142, thereby ensuring the stability of the second chain 141 and the third chain 142 during operation.

[0054] In some examples, the guide member 143 has an extension plate 1432, and the extension plate 1432 and the guide member 143 body 181 are an integrally formed structure. The connector 180 also includes a clamp 185, which is a U-shaped structure as a whole, with an opening facing the second chain 141 or the third chain 142, and the two side walls of the U-shape form a slide groove 1851. The size of the slide groove 1851 matches the thickness of the extension plate 1432, and the width of the slide groove 1851 (the spacing between the two side walls of the U-shape) is 1-2 mm larger than the thickness of the extension plate 1432, which can not only ensure that the extension plate 1432 slides smoothly in the slide groove 1851, but also prevent the chain from shaking due to an excessive gap between the clamp 185 and the extension plate 1432 during the operation of the chain. The clamp 185 is firmly fixed to the body 181 of the connector 180 by bolts or welding, etc., to ensure that there is no relative displacement between the clamp 185 and the body 181 during the movement of the chain.

[0055] The extension plate 1432 provides a support base for the clamping member 185 of the connecting member 180. During the operation of the second chain 141 or the third chain 142, the clamping member 185 cooperates with the extension plate 1432 through the slide groove 1851. The extension plate 1432 bears the pressure from the chain and the clamping member 185 and evenly distributes it to the main body 181 of the guide member 143. This structure enhances the support capacity of the guide member 143 for the chain, ensures that the chain maintains a stable position during the turning process, and avoids shaking due to uneven force or bending caused by gravity.

[0056] In some examples, both ends of the card member 185 along the conveying direction of the second chain conveying device 140 are designed to be flared, and the flared part is in a trumpet shape. The flared shape facilitates the smooth entry of the extension plate 1432 into the chute 1851.

[0057] Working process: The cut glass tube falls under the action of gravity. The rotating wheels 300 are intermittently rotated on both sides beside the chain conveying assembly 100. The receiving groove 310 with an upward opening on the rotating wheel 300 just moves below the glass tube to receive the falling glass tube. Since the opening of the receiving groove 310 faces away from the rotation axis of the rotating wheel 300, the glass tube falls to the bottom of the receiving groove 310 under the action of gravity, achieving stable reception. The rotating wheel 300 starts to rotate driven by the intermittent rotation mechanism, gradually turning the glass tube in the receiving groove 310 towards the ascending section 120 of the first chain conveying device 130. During the rotation process, the glass tube always remains in the receiving groove 310. When the opening of the receiving groove 310 faces the ascending section 120, the glass tube will slide along the side wall of the receiving groove 310 towards the first chain conveying device 130 due to gravity. However, at this time, the clamping plate 320 at the opening of the receiving groove 310 is parallel to the conveying route of the ascending section 120, blocking the glass tube from falling. Then, the tooth member 200 of the first chain conveying device 130 gradually approaches the glass tube in the receiving groove 310 as the first chain 131 moves. After the tooth member 200 contacts the glass tube, it continues to move forward, pushing the glass tube to move along the surface of the clamping plate 320 and finally entering the limiting space 110 formed between two adjacent tooth members 200 on the link of the first chain 131 of the first chain conveying device 130.

[0058] When the glass tube is conveyed by the first chain conveying device 130 to the turning point and enters the second chain conveying device 140, the second chain conveying device 140 conveys the glass tube for turning. During the turning conveyance, the second chain 141 and the third chain 142 slide in two arc-shaped guiding members 143 respectively, and the guiding members 143 keep them in an arc state. The first guiding surfaces 1431 at both ends of the guiding member 143 can guide the side baffle 184 of the connecting member 180 to the end of the guiding member 143 away from the center of the circle, and the side baffle 184 prevents the chain from abutting against the side wall of the guiding member 143. The guiding member 143 has an extension plate 1432. The card member 185 of the connecting member 180 is arranged on the main body 181, and the chute 1851 of the card member 185 accommodates the extension plate 1432. When the chain runs, the chute 1851 slides and abuts against the top and bottom of the extension plate 1432 from the upper and lower sides to support the chain through the extension plate 1432.

[0059] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not restrictive. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A turning device for conveying a glass tube, characterized in that: include: A chain conveying assembly (100), wherein a tooth piece (200) is provided on a chain link of the chain conveying assembly (100), a limiting space (110) is formed between two adjacent tooth pieces (200), and the limiting space (110) is used to contain a glass tube; A rotating wheel (300) is rotatably arranged at the feeding end of the chain conveying assembly (100); the main axis of the rotating wheel (300) is parallel to the sprocket rotation axis of the chain conveying assembly (100); the outer circumference of the rotating wheel (300) has a plurality of receiving grooves (310) spaced circumferentially for receiving glass tubes; the opening of the receiving groove (310) faces away from the rotation axis of the rotating wheel (300); the rotating wheel (300) can drive the receiving groove (310) to rotate synchronously until the opening faces the chain conveying assembly (100), so that the glass tube in the receiving groove (310) is discharged into the limiting space (110); The chain conveying assembly (100) comprises an ascending section (120), the ascending section (120) extending obliquely upward along a side away from the rotating wheel (300), the opening of the receiving groove (310) comprises a clamping plate (320) extending outward, the clamping plate (320) being configured such that, after the opening of the receiving groove (310) faces the ascending section (120), the clamping plate (320) is parallel to a conveying route of the ascending section (120), the clamping plate (320) being used to prevent the glass tube from being removed from the receiving groove (310), so as to push the glass tube into the limiting space (110) with the aid of the toothed member (200).

2. A turning device for conveying a glass tube according to claim 1, characterized in that: The chain conveyor assembly (100) comprises: A first chain conveying device (130), the first chain conveying device (130) comprising two parallel first chains (131), the two first chains (131) being respectively wound around a plurality of first sprocket wheels (132), the main axis of the first sprocket wheel (132) being parallel to the main axis of the rotating wheel (300), the first chain (131) comprising the ascending section (120), the spacing between the two first chains (131) being less than the length of the glass tube, and the toothed member (200) being provided on the chain links of the first chain (131); a second chain conveying device (140), the second chain conveying device (140) being used for conveying glass tubes in a turning manner, the second chain conveying device (140) comprising a second chain (141) and a third chain (142), the horizontal projections of the second chain (141) and the third chain (142) being arc-shaped, the center of the horizontal projection of the second chain (141) coincides with the center of the horizontal projection of the third chain (142), the second chain (141) being located in the inner circle of the third chain (142), and the toothed member (200) being provided on both the second chain (141) and the third chain (142); The guide members (143) are provided with two, and the two guide members (143) are both arc-shaped. The second chain (141) and the third chain (142) slide through the guide members (143) in a one-to-one correspondence, and the guide members (143) enable the second chain (141) and the third chain (142) to maintain an arc-shaped state.

3. A turning device for conveying a glass tube according to claim 2, characterized in that: The toothed member (200) comprises: A plurality of first tooth blocks (210) are provided, each of the first tooth blocks (210) being arranged on the chain links of the first chain (131) in a one-to-one correspondence. The first tooth block (210) has a vertical surface (211) and an inclined surface (212). The vertical surface (211) is arranged perpendicular to the main axis of the first sprocket (132). The upper edge of the inclined surface (212) is connected to the upper edge of the vertical surface (211). The inclined surface (212) gradually moves away from the vertical surface (211) along the direction from the upper edge to the lower edge. The plurality of first tooth blocks (210) are divided into a plurality of groups. Two adjacent first tooth blocks (210) form a group. The inclined surfaces (212) of the two first tooth blocks (210) in the same group are close to each other. The vertical surfaces (211) of the first tooth blocks (210) between adjacent groups are close to each other. The limiting space (110) is formed between the inclined surfaces (212) of the two first tooth blocks (210) in the same group. A connecting rod (220) having two ends respectively arranged on the first tooth blocks (210) corresponding to the two first chains (131); the connecting rod (220) is located at one end of the first tooth block (210) away from the chain link of the first chain (131); and the axis of the connecting rod (220) is parallel to the axis of the first sprocket (132).

4. A turning device for conveying a glass tube according to claim 3, characterized in that: The toothed member (200) further comprises: A plurality of second tooth blocks (230) are provided, each of the second tooth blocks (230) being arranged on the chain links of the second chain (141) in a one-to-one correspondence; the second tooth blocks (230) and the first tooth blocks (210) are of the same shape; the plurality of second tooth blocks (230) are divided into a plurality of groups; two adjacent second tooth blocks (230) form a group; the inclined surfaces (212) of the two second tooth blocks (230) in the same group are close to each other; the vertical surfaces (211) of the second tooth blocks (230) between adjacent groups are close to each other; and the limiting space (110) is formed between the inclined surfaces (212) of the two second tooth blocks (230) in the same group; A plurality of third tooth blocks (240), wherein the plurality of third tooth blocks (240) are arranged on the chain links of the third chain (142) in a one-to-one correspondence, the third tooth blocks (240) are of the same shape as the first tooth blocks (210), the plurality of third tooth blocks (240) are divided into a plurality of groups, two adjacent third tooth blocks (240) form a group, the inclined surfaces (212) of the two third tooth blocks (240) in the same group are close to each other, the vertical surfaces (211) of the third tooth blocks (240) between adjacent groups are close to each other, and a single chain link is provided between the two third tooth blocks (240) in the same group; The support block (250) is arranged on a chain link between two third tooth blocks (240) in the same group; the inclined surfaces (212) of the two third tooth blocks (240) in the same group and the support block (250) form the limiting space (110); the limiting space (110) on the second chain (141) corresponds one-to-one to the limiting space (110) on the third chain (142).

5. A turning device for conveying a glass tube according to claim 2, characterized in that: The second chain conveying device (140) further comprises: a second sprocket (150), the second chain (141) being wound around the second sprocket (150); A third sprocket (160), the third chain (142) is wound around the third sprocket (160), and one of the second sprockets (150), one of the third sprockets (160), and one of the first sprockets (132) are located on the same drive shaft, so that the first chain conveying device (130) and the second chain conveying device (140) operate synchronously.

6. A turning device for conveying a glass tube according to claim 5, characterized in that: The second chain conveying device (140) further comprises: A one-way bearing (170) is arranged between the second sprocket (150) and the drive shaft, and / or the one-way bearing (170) is arranged between the third sprocket (160) and the drive shaft.

7. A turning device for conveying a glass tube according to claim 4, characterized in that: The second chain conveying device (140) further comprises: a connecting member (180) arranged on a link of the second chain (141) or the third chain (142); the second tooth block (230) is arranged on the link of the second chain (141) via the connecting member (180); and the third tooth block (240) and the support block (250) are respectively arranged on the third chain (142) via the connecting member (180); The connecting member (180) comprises: A main body (181) is used to arrange the second tooth block (230), the third tooth block (240) or the support block (250), and a side portion of the main body (181) has an accommodation space (182), and the accommodation space (182) is used to accommodate a positioning pin on a chain link; A top block (183) is slidably disposed in the accommodating space (182) along an up-down direction, and the top block (183) is configured such that, after the top block (183) moves downward, it cooperates with the inner bottom wall of the accommodating space (182) to clamp or release the positioning pin on the chain link.

8. A turning device for conveying a glass tube according to claim 7, characterized in that: The two ends of the guide member (143) have first guide surfaces (1431), and the connecting member (180) further comprises: A side baffle (184) is arranged on the main body (181), and the first guide surface (1431) is used to guide the side baffle (184) to move in a direction away from the center of the guide member (143), so that the second chain (141) or the third chain (142) avoids the guide member (143).

9. A turning device for conveying a glass tube according to claim 7, characterized in that: The guide member (143) has an extension plate (1432), and the connecting member (180) further comprises: A clamp (185) is arranged on the main body (181), and the clamp (185) has a slide groove (1851) for accommodating the extension plate (1432). The clamp (185) is configured such that, during the operation of the second chain (141) or the third chain (142), the clamp (185) drives the slide groove (1851) to slide from upper and lower sides to abut against the top and bottom plates of the extension plate (1432), so that the clamp (185) supports the second chain (141) or the third chain (142) through the extension plate (1432).

10. A turning device for conveying a glass tube according to claim 9, characterized in that: Both ends of the clamping member (185) are flared along the conveying direction of the second chain conveying device (140).

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