Connecting and filling mechanism of bottle blowing machine

Abstract

The utility model provides a bottle blowing machine connecting and filling mechanism, which is positioned between a bottle blowing machine and a filling machine and comprises a main frame, a variable pitch bottle conveying mechanism, a spring clamp mechanism, a track group, a circulating conveying mechanism and a bottle conveying turntable mechanism, the control end of the variable-pitch bottle conveying mechanism is connected with the spring clamp mechanism, and the spring clamp mechanism clamps a bottle outlet of the bottle blowing machine at the initial position and is located above the track set at the final position. The circulating conveying mechanism is located above the track set and comprises a plurality of spring type bottle head inserting mechanisms used for being detachably connected with bottle openings of bottles. The outlet side of the rail set is located on the rotating path of a rotating disc on the bottle conveying rotating disc mechanism, and the rotating path of the rotating disc further passes through the filling machine. The whole occupied area is smaller, the contact time of dust and bacteria in the air can be shortened due to the fact that the conveying path is shorter and air blowing is not needed, and therefore the requirement for high-speed, stable and continuous production of bottled water can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of bottle blowing and filling connection equipment, in particular to a bottle blowing machine connection and filling mechanism. Background Art

[0002] The bottle blowing machine connected to the filling mechanism is a mechanism that conveys the blow-molded bottles during the bottle production process. At present, the bottle blowing machine connected to the filling mechanism on the market is generally connected by an air delivery channel, which consists of a 30-meter-long air delivery pipeline with two air delivery tracks in the pipeline. The bottle is provided with an annular groove structure. The bottle is erected between the two air delivery tracks through the annular groove. There are multiple fans fixed on it to blow air, and the fan guides the bottle to be transported forward on the air delivery track to realize the process of transporting the bottle to the filling machine.

[0003] However, the current bottle blowing machine connected to the filling mechanism has the following disadvantages:

[0004] 1. When the fan transports the bottles to the filling machine through guided air blowing, the bottles are easily exposed to dust and bacteria in the air, thereby reducing the hygiene level of the bottled water.

[0005] 2. Since the air delivery pipeline is about 30 meters long, it not only takes up space, but the air delivery track is too long, which will also reduce the reliability of online production and cannot meet the needs of high-speed and stable production of bottled water. Utility Model Content

[0006] In order to solve the above problems in the prior art, the utility model provides a bottle blowing machine connected to a filling mechanism, which not only reduces the occupied space but also can meet the demand for high-speed, stable and continuous production of bottled water.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] In a first aspect, the utility model provides a bottle blowing machine connected to a filling mechanism, which is located between the bottle blowing machine and the filling machine and includes a main frame, a variable pitch bottle transport mechanism, a spring clamp mechanism, a track group, a circulating transmission mechanism and a bottle transport turntable mechanism;

[0009] The variable pitch bottle transport mechanism is arranged on the main frame, and its control end is connected to the spring clamp mechanism, and is used to drive the variable pitch bottle transport mechanism to move from an initial position to an end position, the first clamping opening of the spring clamp mechanism at the initial position is used to face the bottle outlet of the bottle blowing machine, and the first clamping opening of the spring clamp mechanism when it moves horizontally to the end position is aligned with the second clamping opening at the middle position of the track group, and the second clamping opening is used to clamp the clamp ring on the bottle head;

[0010] The circulating conveying mechanism is located above the track group, and the circulating conveying mechanism includes a plurality of spring-type bottle inserting head mechanisms, the spacing between adjacent spring-type bottle inserting head mechanisms is the same as the spacing between adjacent spring clamp mechanisms at the terminal position, and the spring-type bottle inserting head mechanism is used to be detachably connected to the bottle mouth of the bottle;

[0011] The bottle transport turntable mechanism comprises a rotating disk in the same plane as the track and an arc-shaped clamping plate outside the rotating disk, the rotating disk is provided with an arc-shaped opening, the arc-shaped opening and the arc-shaped clamping plate form a third clamping opening, and the third clamping opening is used to clamp the clamping ring on the bottle head;

[0012] The exit side of the track set is located on the rotation path of the rotating disk, and the rotation path of the rotating disk also passes through the filling machine.

[0013] The beneficial effect of the utility model is that the utility model drives the spring clamp mechanism to move horizontally to the terminal position through the variable pitch bottle transport mechanism. At this time, the first clamping opening of the spring clamp mechanism when it moves horizontally to the terminal position is aligned with the second clamping opening in the middle position of the track group, and the spring-type bottle head mechanism of the circulating conveying mechanism is aligned and inserted into the bottle mouth on the spring clamp mechanism. During the conveying process of the circulating conveying mechanism, the bottle is driven to move along the track group until it enters the entrance side of the bottle transport turntable mechanism, and the third clamping opening is formed by the arc opening and the arc clamping plate to clamp the clamp ring of the bottle head, so that the bottle is moved from the exit side of the track group to the filling machine, and the bottle is transported to the filling machine by the bottle transport turntable mechanism. Therefore, the utility model completes the process of conveying the bottle from the bottle blowing machine to the filling machine, and the overall occupied area is smaller. Since the conveying path is shorter and no air blowing is required, the contact time of dust and bacteria in the air can be reduced, so that the high-speed, stable and continuous production requirements of bottled water can be met.

[0014] Optionally, the circulating transmission mechanism includes a power sprocket mechanism, a bottle transport chain mechanism, a driven sprocket mechanism, and a cam bottle insertion mechanism;

[0015] The bottle transport chain mechanism is mounted on the power sprocket mechanism and the driven sprocket mechanism to form a sprocket transmission structure. The spring-type bottle inserting head mechanism is located on the bottle transport chain mechanism. The bottle transport chain mechanism drives the spring-type bottle inserting head mechanism to align one by one with the center of the first clamping opening of each spring clamp mechanism on the track group. The cam bottle inserting mechanism is fixed on the main frame and is located above the spring-type bottle inserting head mechanism above the track group. The cam bottle inserting mechanism moves up and down and is detachably connected to one end of the spring-type bottle inserting head mechanism. The other end of the spring-type bottle inserting head mechanism is used for detachably connecting to the bottle mouth of the bottle.

[0016] It can be seen from the above description that the cyclic transmission of the spring-type bottle inserting head mechanism is achieved through the sprocket transmission structure.

[0017] Optionally, the spring-type bottle head mechanism includes a cylindrical tube, a plug connector, a compression spring and a pressure rod, the compression spring is located in the cylindrical tube, the compression spring is fixed in the cylindrical tube, one end of the pressure rod passes through the compression spring and is connected to the plug connector, the other end of the pressure rod is provided with a pressure head, and the pressure rod is provided with a flange above the compression spring to press against the compression spring.

[0018] Optionally, the cam bottle insertion mechanism includes a bottle insertion motor, a third reducer, a transmission shaft, a cam plate, a rotating bearing, a bottle insertion fixing plate, a tension spring, a tension spring bracket, a rotating pin and a clamping plate, the bottle insertion motor is connected to the cam plate through the third reducer and the transmission shaft in sequence, one end of the rotating bearing is fixed to the bottle insertion fixing plate and the other end is located in the wire groove of the cam plate, the rotating bearing moves up and down with the rotation of the cam plate, and the tension spring bracket is provided with at least two groups on the bottle insertion fixing plate, each group of the tension spring bracket is an inverted U-shape formed by splicing two L-shaped parts, the tension spring is fixed at the two ends of the opening of the tension spring bracket, the two rotating pins are respectively located at the positions of the two L-shaped parts on the tension spring bracket, and the two ends of the inverted U-shape of the two groups of the tension spring bracket are respectively connected to the two ends of the clamping plates on both sides, the clamping plates on both sides are arranged parallel to the track group and are used to clamp the pressure head, and the clamping plates on both sides extend to the junction of the track group and the bottle transport turntable mechanism.

[0019] According to the above description, the power sprocket mechanism rotates to drive the bottle transport chain mechanism forward. After the bottles on it enter the bottle transport turntable mechanism, due to the disappearance of the clamping plate, the pressure on the spring-type bottle insertion head mechanism is gone, the compression spring begins to rebound and releases the bottle mouth, and the bottles enter the bottle transport turntable mechanism one after another.

[0020] Optionally, the bottle transport turntable mechanism includes a turntable bracket and a rotating motor, a first reducer, a connecting shaft, a transfer shaft and a gear plate located on the turntable bracket, the gear plate and the rotating disk are provided in multiple groups, and the gear plate and the rotating disk of each group are connected by a transfer shaft, the rotating motor is sequentially connected to one of the gear plates through the first reducer and the connecting shaft, and the adjacent gear plates are meshed with each other;

[0021] A plurality of rotating disks are arranged adjacent to each other, and the arc-shaped openings of two adjacent rotating disks form a fourth clamping opening at mutually close positions, and the arc-shaped clamping plate is only arranged on the rotation path where the rotating disk can clamp the bottle.

[0022] It can be seen from the above description that the rapid transportation of bottles is achieved through the cooperation of multiple groups of rotating disks.

[0023] Optionally, the track set includes two opposing knife-shaped tracks, with the blades lying flat and facing inwards.

[0024] Optionally, the variable pitch bottle transport mechanism includes a fixed frame, an alternating telescopic power mechanism, a lateral movement power mechanism and a multi-guide groove variable pitch mechanism located on the fixed frame, the lateral movement power mechanism and the alternating telescopic power mechanism are arranged on the main frame and are both connected to the fixed frame, a plurality of spring clamp mechanisms are arranged on the multi-guide groove variable pitch mechanism, the first clamping port of the spring clamp mechanism in the initial position is used to face the bottle outlet of the bottle blowing machine, the first clamping port of the spring clamp mechanism when it moves horizontally to the end position is aligned with the second clamping port in the middle position of the track group, and the second clamping port is used to clamp the clamping ring on the bottle head.

[0025] Optionally, the multi-guide groove variable pitch mechanism comprises a driving camshaft fixed on a fixing frame and a multi-guide groove cam barrel sleeved outside the driving camshaft, the driving camshaft is provided with a spiral groove on its surface, the multi-guide groove cam barrel is provided with a rotary bearing, the rotary bearing is located in the spiral groove, the surface of the multi-guide groove variable pitch mechanism is provided with a plurality of spiral variable pitch guide grooves, and the spacing between adjacent variable pitch guide grooves changes uniformly along the spiral direction of the variable pitch guide grooves;

[0026] The output end of the lateral movement force mechanism is connected to the multi-guide groove cam barrel, one end of the spring clamp mechanism is located in the variable pitch guide groove, and its first clamping port is set outward, the lateral movement force mechanism drives the multi-guide groove cam barrel to move laterally on the driving cam shaft, and the rotating bearing in the multi-guide groove cam barrel is restricted by the spiral groove and follows the rotation, and the variable pitch guide groove drives the spring clamp mechanism to move and change the pitch as the multi-guide groove cam barrel rotates.

[0027] According to the above description, it can be known that the multi-guide groove cam barrel is driven to move laterally on the driving camshaft through the lateral movement force mechanism, and the rotating bearing in the multi-guide groove cam barrel is restricted by the spiral groove and rotates accordingly. The variable pitch guide groove drives the spring clamp mechanism to move and change the pitch as the multi-guide groove cam barrel rotates. Since the spacing between adjacent variable pitch guide grooves changes uniformly along the spiral direction of the variable pitch guide groove, the pitch change of the spring clamp mechanism is also uniform. Therefore, the utility model realizes the functions of lateral movement and pitch adjustment at the same time through the lateral movement force mechanism.

[0028] Optionally, the variable pitch bottle transport mechanism further comprises a plurality of groups of first linear rails and first sliders, wherein the first linear rails are fixed on the fixing frame and evenly distributed along the length direction of the fixing frame, and the first sliders are connected to the main frame and slide forward and backward along the first linear rails;

[0029] The alternating telescopic power mechanism includes an alternating telescopic motor, a coupling, a bearing seat, a screw rod, a nut and a connecting seat. The alternating telescopic motor is connected to one end of the screw rod through the coupling. The screw rod is located in the bearing seat, and the other end is threadedly connected to the nut. The nut is located in the connecting seat. The connecting seat is fixedly connected to the fixed frame. The alternating telescopic motor drives the fixed frame to slide back and forth through the screw rod, the nut and the connecting seat in sequence.

[0030] According to the above description, the alternating telescopic motor converts the rotational motion into the forward and backward linear movement of the fixed frame through the cooperation of the lead screw and the nut.

[0031] Optionally, a fourth linear rail is provided below the multi-guide slot variable pitch mechanism, and the spring clamp mechanism comprises a clamp fixing seat and left and right clamping claws, a spring, a guard plate, a fixing pin, a variable pitch bearing and a fourth slider arranged on the clamp fixing seat;

[0032] The front ends of the left and right clamps form a first clamping opening, and the rear ends are sleeved on a connecting rod, the spring is sleeved on the connecting rod and clamped in the middle by the rear ends of the left and right clamps, the guard plate is arranged on the bottom surface of the clamp fixing seat, two fixing pins are arranged, and they pass through the middle areas of the left and right clamps respectively and are fixedly connected with the guard plate, the variable pitch bearing is fixed on one end of the clamp fixing seat close to the multi-guide groove cam cylinder, and the variable pitch bearing is located in the variable pitch guide groove;

[0033] The fourth sliding block is slidably connected to the fourth linear rail, and the sliding direction is consistent with the lateral moving direction of the multi-guide groove cam barrel.

[0034] According to the above description, there is a fixed pin in the middle of the left and right clamps, which can rotate and rely on the compression spring to maintain the clamping force. On the one hand, it ensures that it can open to clamp the bottle or open to release the bottle when subjected to other external forces. On the other hand, it ensures that the bottle can be stably held during the reciprocating motion of the multi-guide groove variable pitch mechanism and does not fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a three-dimensional schematic diagram of a bottle blowing machine connected to a filling mechanism according to an embodiment of the utility model;

[0036] Figure 2 It is a schematic diagram of the connection between a bottle blowing machine and a filling mechanism and the cooperation between the bottle blowing machine and the filling machine according to an embodiment of the utility model;

[0037] Figure 3 for Figure 1 A magnified schematic diagram of the middle area A;

[0038] Figure 4This is a front view of a bottle blowing machine connected to a filling mechanism according to an embodiment of the utility model;

[0039] Figure 5 It is a three-dimensional schematic diagram of a cam bottle inserting mechanism involved in an embodiment of the utility model;

[0040] Figure 6 for Figure 5 A magnified schematic diagram of the middle area B;

[0041] Figure 7 It is a three-dimensional schematic diagram of a variable pitch bottle transport mechanism involved in an embodiment of the utility model;

[0042] Figure 8 It is a front view of a variable pitch bottle transport mechanism according to an embodiment of the utility model;

[0043] Fig. 9 for Figure 8 A magnified schematic diagram of the middle area C;

[0044] Fig.10 A bottom view of a variable pitch bottle transport mechanism according to an embodiment of the utility model;

[0045] Fig.11 for Fig.10 A magnified schematic diagram of the middle area D;

[0046] Fig.12 It is a three-dimensional schematic diagram of the variable pitch bottle transport mechanism involved in the embodiment of the utility model at another viewing angle;

[0047] Fig.13 for Fig.12 Schematic enlargement of area E in the middle.

[0048] [Description of Reference Numerals]

[0049] 100, bottle blowing machine connected to filling mechanism; 200, bottle blowing machine; 300, filling machine; 400, bottle;

[0050] 1. Main frame;

[0051] 2. Variable pitch bottle transport mechanism; 21. Fixed frame; 22. Alternating telescopic power mechanism; 221. Alternating telescopic motor; 222. Coupling; 223. Bearing seat; 224. Screw rod; 225. Nut; 226. Connecting seat; 23. Transverse power mechanism; 231. Second linear rail; 232. Second slider; 233. Transverse servo motor; 234. Second reducer; 235. Power synchronous wheel; 236. Power seat; 237. Driven synchronous wheel; 238. Countershaft; 23 9. driven seat; 2310. belt; 2311. pressure block; 2312. transverse connecting block; 24. multi-guide groove variable pitch mechanism; 241. driving cam shaft; 242. multi-guide groove cam cylinder; 2421. rotary bearing; 2422. variable pitch guide groove; 243. alternating variable pitch seat; 244. fixed block; 245. third slider; 246. roller seat; 247. multi-guide groove cam seat; 248. fourth linear rail; 25. first linear rail; 26. first slider; 27. third linear rail;

[0052] 3. Spring clamp mechanism; 31. First clamping opening; 32. Clamping claw; 33. Spring; 34. Guard plate; 35. Fixing pin; 36. Variable pitch bearing; 37. Fourth slide block;

[0053] 4. Track assembly; 41. Second clamping port; 42. Knife-shaped track;

[0054] 5. Circular transmission mechanism; 51. Spring-type bottle inserting head mechanism; 511. Cylinder; 512. Plug joint; 513. Pressure rod; 52. Power sprocket mechanism; 53. Bottle transport chain mechanism; 54. Driven sprocket mechanism; 55. Cam bottle inserting mechanism; 551. Bottle inserting motor; 552. Third reducer; 553. Transmission shaft; 554. Cam plate; 555. Rotating bearing; 556. Bottle inserting fixing plate; 557. Tension spring; 558. Tension spring bracket; 559. Rotating pin; 5510. Clamping plate;

[0055] 6. Bottle transport turntable mechanism; 61. Rotating disk; 62. Arc-shaped clamping plate; 621. Arc-shaped opening; 63. Third clamping port; 64. Turntable bracket; 65. Rotating motor; 66. First reducer; 67. Connecting shaft; 68. Adapter shaft; 69. Gear plate; 610. Fourth clamping port. DETAILED DESCRIPTION

[0056] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0057] Embodiment 1

[0058] Please refer to Figures 1 to 13 , a bottle blowing machine connected to a filling mechanism, such as Figure 2 As shown, the bottle blowing machine connecting filling mechanism 100 of this embodiment is located between the bottle blowing machine 200 and the filling machine 300, and includes a main frame 1, a variable pitch bottle transport mechanism 2, a spring clamp mechanism 3, a track group 4, a circulating conveying mechanism 5 and a bottle transport turntable mechanism 6.

[0059] Combination Figures 7 to 13 It can be known that the variable pitch bottle transport mechanism 2 includes a fixed frame 21, an alternating telescopic power mechanism 22, a lateral movement power mechanism 23, and a multi-guide slot variable pitch mechanism 24 located on the fixed frame 21. The lateral movement power mechanism 23 and the alternating telescopic power mechanism 22 are arranged on the main frame 1 and are both connected to the fixed frame 21. A plurality of spring clamp mechanisms 3 are arranged on the multi-guide slot variable pitch mechanism 24. The first clamping opening 31 of the spring clamp mechanism 3 at the initial position is used to face the bottle outlet of the bottle blowing machine 200. The first clamping opening 31 of the spring clamp mechanism 3 when it is transversely moved to the terminal position is aligned with the second clamping opening 41 at the middle position of the track group 4. The second clamping opening 41 is used to clamp the clamp ring on the head of the bottle 400. The track group 4 includes two opposite knife-shaped tracks 42, the knife edges are placed flat and the knife edges are facing inward, so that the first clamping opening 31 of the spring clamp mechanism 3 when it is transversely moved to the terminal position is located on the second clamping opening 41 formed by the two knife-shaped tracks 42.

[0060] Among them, there is only one set of multi-guide slot variable pitch mechanism 24 and multiple spring clamp mechanisms 3, namely Figure 1 , Figure 4 and Figure 7 As shown, Figures 8 to 13 The extra group among the two groups of multi-guide groove variable pitch mechanisms 24 and multiple spring clamp mechanisms 3 shown is only for demonstrating the mechanical matching relationship under different states, and does not mean that a bottle blowing machine connected to the filling mechanism of this embodiment has two groups of multi-guide groove variable pitch mechanisms 24 and spring clamp mechanisms 3 at the same time.

[0061] like Fig.10It can be seen that the multi-guide groove variable pitch mechanism 24 includes a driving cam shaft 241 fixed on the fixing frame 21 and a multi-guide groove cam barrel 242 sleeved on the driving cam shaft 241, the surface of the driving cam shaft 241 is provided with a spiral groove, and the multi-guide groove cam barrel 242 is provided with a rotary bearing 2421, and the rotary bearing 2421 is located in the spiral groove. The surface of the multi-guide groove variable pitch mechanism 24 is provided with a plurality of spiral variable pitch guide grooves 2422, and the spacing between adjacent variable pitch guide grooves 2422 is along the spiral of the variable pitch guide groove 2422. The rotation direction changes evenly; the output end of the transverse movement force mechanism 23 is connected to the multi-guide groove cam barrel 242, one end of the spring clamp mechanism 3 is located in the variable pitch guide groove 2422, and its first clamping port 31 is set outward, and the transverse movement force mechanism 23 drives the multi-guide groove cam barrel 242 to move laterally on the driving cam shaft 241, and the rotating bearing 2421 in the multi-guide groove cam barrel 242 is restricted by the spiral groove and follows the rotation, and the variable pitch guide groove 2422 drives the spring clamp mechanism 3 to move and change the pitch as the multi-guide groove cam barrel 242 rotates.

[0062] Specific reference Figure 8 It can be seen that the clamp group composed of multiple spring clamp mechanisms 3 is in a closed state at the initial position. At this time, the multiple spring clamp mechanisms 3 are closely arranged, and the spacing between adjacent ones is small. At the end position, the clamp group is in an open state. At this time, the multiple spring clamp mechanisms 3 are dispersedly arranged, and the spacing between adjacent ones is large. Therefore, during the lateral movement of the multi-guide groove variable pitch mechanism 24, the pitch of the multiple spring clamp mechanisms 3 is adjusted at the same time.

[0063] Among them, the length of the driving cam shaft 241 is greater than the length of the multiple spring clamp mechanisms 3 in the open state plus the length of the multiple spring clamp mechanisms 3 in the closed state. In this way, when the multiple spring clamp mechanisms 3 are in the initial position and the end position, they will not interfere with each other due to the bottle blowing machine 200 and the track group 4.

[0064] Combination Figure 8 and Fig. 9 It can be seen that the variable pitch bottle transport mechanism 2 also includes multiple groups of first linear rails 25 and first sliders 26. The first linear rails 25 are fixed on the fixed frame 21 and are evenly distributed along the length direction of the fixed frame 21. The first sliders 26 are connected to the main frame 1 and slide forward and backward along the first linear rails 25. Therefore, the first sliders 26 play the role of guiding and suspending the alternating telescopic action of the entire alternating variable pitch bottle transport mechanism. In this embodiment, four groups of first linear rails 25 and first sliders 26 are provided. In other embodiments, five groups, six groups, etc. can also be provided.

[0065] Combination Fig.10 , Fig.12 and 13It can be seen that the alternating telescopic power mechanism 22 includes an alternating telescopic motor 221, a coupling 222, a bearing seat 223, a screw 224, a nut 225 and a connecting seat 226. The alternating telescopic motor 221 is connected to one end of the screw 224 through the coupling 222. The screw 224 is located in the bearing seat 223, and the other end is threadedly connected to the nut 225. The nut 225 is located in the connecting seat 226. The connecting seat 226 is fixedly connected to the fixed frame 21. The alternating telescopic motor 221 drives the fixed frame 21 to slide forward and backward through the screw 224, the nut 225 and the connecting seat 226 in sequence. Among them, the cooperation of the screw 224 and the nut 225 converts the rotational motion of the alternating telescopic motor 221 into the forward and backward linear movement of the fixed frame 21.

[0066] Combination Fig.10 It can be seen that the transverse force mechanism 23 includes a second linear rail 231, a second slider 232, a transverse servo motor 233, a second reducer 234, a power synchronous wheel 235, a power seat 236, a driven synchronous wheel 237, a secondary shaft 238, a driven seat 239, a belt 2310, a pressing block 2311 and a transverse connecting block 2312. The transverse servo motor 233 is connected to the power synchronous wheel 235 through the second reducer 234, the power synchronous wheel 235 is fixed on the power seat 236 through a rotating shaft, the driven synchronous wheel 237 is fixed on the driven seat 239 through the secondary shaft 238, and the power seat 236 and the driven synchronous wheel 237 are connected. The seats 239 are arranged at intervals on the side of the fixed frame 21 away from the spring clamp mechanism 3 and are fixed to the main frame 1. The belt 2310 is sleeved on the power synchronous wheel 235 and the driven synchronous wheel 237 to form a belt 2310 transmission structure. The pressing block 2311 is fixed on the belt 2310 and connected to the second slider 232. The second slider 232 is slidably connected to the second linear rail 231. The second linear rail 231 is connected to the multi-guide groove cam barrel 242 through the transverse connection block 2312. The sliding direction of the second slider 232 on the second linear rail 231 is the same as the sliding direction of the first slider 26 on the first linear rail 25. Therefore, the pressing block 2311 moves laterally following the belt 2310, and drives the multi-guide groove cam barrel 242 to move laterally through the transverse connection block 2312.

[0067] like Figure 8 and Fig. 9As shown, the multi-guide groove pitch-changing mechanism 24 also includes an alternating pitch-changing seat 243, a fixed block 244, a third slider 245, a roller seat 246 and a multi-guide groove cam seat 247. The roller seat 246 is fixedly provided on both sides of the fixed frame 21. The driving cam shaft 241 of the fixed frame 21 is arranged between the two roller seats 246. The multi-guide groove cam seat 247 is respectively fixed on both sides of the alternating pitch-changing seat 243. The multi-guide groove cam cylinder 242 of the fixed frame 21 is arranged between the two multi-guide groove cam seats 247. The output end of the lateral force mechanism 23 is connected to the alternating pitch seat 243; the fixed block 244 is arranged above the alternating pitch seat 243, the third slider 245 is arranged above the fixed block 244, and is slidably connected to the third linear rail 27 arranged on the fixed frame 21, the sliding direction of the third slider 245 and the third linear rail 27 is consistent with the lateral movement direction of the multi-guide groove cam barrel 242, and the fixed block 244 and the third slider 245 are evenly distributed in multiple groups along the alternating pitch seat 243. That is, the driving cam shaft 241 is used as a fixed shaft, the multi-guide groove cam barrel 242 is a sliding member, and the third slider 245 and the third linear rail 27 play a role in guiding the lateral sliding. During the lateral sliding process of the multi-guide groove cam barrel 242, its rotary bearing 2421 is guided by the spiral groove on the driving cam shaft 241, and it rotates itself, so that the variable pitch guide groove 2422 drives the spring clamp mechanism 3 to move and change the pitch as the multi-guide groove cam barrel 242 rotates.

[0068] Combination Fig.11 It can be seen that a fourth linear rail 248 is arranged below the alternating pitch seat 243, and the spring clamp mechanism 3 includes a clamp fixing seat and left and right clamping jaws 32, a spring 33, a guard plate 34, a fixing pin 35, a pitch-changing bearing 36 and a fourth slider 37 arranged on the clamp fixing seat; the front ends of the left and right clamping jaws 32 form a first clamping opening 31, and the rear ends are sleeved on a connecting rod, the spring 33 is sleeved on the connecting rod and is clamped in the middle by the rear ends of the left and right clamping jaws 32, the guard plate 34 is arranged on the bottom surface of the clamp fixing seat, two fixing pins 35 are arranged, and they are respectively passed through the middle area of ​​the left and right clamping jaws 32 and fixedly connected with the guard plate 34, the pitch-changing bearing 36 is fixed on one end of the clamp fixing seat close to the multi-guide groove cam barrel 242, and the pitch-changing bearing 36 is located in the pitch-changing guide groove 2422; the fourth slider 37 is slidably connected to the fourth linear rail 248, and the sliding direction is consistent with the lateral movement direction of the multi-guide groove cam barrel 242. The variable pitch bearing 36 is located in the variable pitch guide groove 2422 , so the variable pitch bearing 36 drives the entire spring clamp mechanism 3 to slide along the fourth linear rail 248 .

[0069] At this time, there is a fixed pin 35 in the middle of the left and right clamps 32 for positioning and rotation, and the compression spring 33 is used to maintain the clamping force. On the one hand, it ensures that it can open and clamp the bottle 400 or open and release the bottle 400 when subjected to other external forces. On the other hand, it ensures that the bottle 400 can be stably held during the reciprocating motion of the multi-guide groove variable pitch mechanism 24 and does not fall off.

[0070] In this embodiment, the circulating conveying mechanism 5 is located above the track group 4. The circulating conveying mechanism 5 includes a plurality of spring-type bottle head mechanisms 51. The spacing between adjacent spring-type bottle head mechanisms 51 is the same as the spacing between adjacent spring clamp mechanisms 3 at the end position. The spring-type bottle head mechanisms 51 are used to be detachably connected to the bottle mouth of the bottle 400, that is, when the adjacent spring clamp mechanisms 3 are at the end position, the spring-type bottle head mechanisms 51 are aligned one by one with the spring clamp mechanisms 3.

[0071] like Figure 4 As shown, the circulating transmission mechanism 5 includes a power sprocket mechanism 52, a bottle transport chain mechanism 53, a driven sprocket mechanism 54 and a cam bottle insertion mechanism 55. The bottle transport chain mechanism 53 is mounted on the power sprocket mechanism 52 and the driven sprocket mechanism 54 to form a sprocket transmission structure. The spring-type bottle insertion head mechanism 51 is located on the bottle transport chain mechanism 53. The bottle transport chain mechanism 53 drives the spring-type bottle insertion head mechanism 51 to align the center of the first clamping opening 31 of each spring clamp mechanism 3 on the track group 4. The cam bottle insertion mechanism 55 is fixed on the main frame 1 and is located above the spring-type bottle insertion head mechanism 51 above the track group 4. The cam bottle insertion mechanism 55 moves up and down and is detachably connected to one end of the spring-type bottle insertion head mechanism 51. The other end of the spring-type bottle insertion head mechanism 51 is used to be detachably connected to the bottle mouth of the bottle 400. It can be seen from the figure that the spring-type bottle insertion head mechanism 51 is evenly distributed on the entire bottle transport chain mechanism 53.

[0072] like Figure 3 It can be seen that the spring-type bottle head inserting mechanism 51 includes a cylindrical tube 511, a plug connector 512, a compression spring and a pressure rod 513. The compression spring is located in the cylindrical tube 511 and fixed in the cylindrical tube 511. One end of the pressure rod 513 passes through the compression spring and is connected to the plug connector 512. The other end of the pressure rod 513 is provided with a pressure head, and the pressure rod 513 is provided with a flange above the compression spring to press the compression spring. The compression spring is located in the cylindrical tube 511 and is not shown in the figure. When the pressure rod 513 moves downward, the flange presses the compression spring to contract, and the plug connector 512 moves downward. At this time, the plug connector 512 is a cylindrical design corresponding to the bottle mouth of the bottle 400, and a circular arc transition is provided on the side close to the bottle mouth of the bottle 400 to facilitate plugging into the bottle mouth of the bottle 400.

[0073] like Figure 5It can be seen that the cam bottle insertion mechanism 55 includes a bottle insertion motor 551, a third speed reducer 552, a transmission shaft 553, a cam plate 554, a rotating bearing 555, a bottle insertion fixing plate 556, a tension spring 557, a tension spring bracket 558, a rotating pin 559 and a clamping plate 5510. The bottle insertion motor 551 is connected to the cam plate 554 through the third speed reducer 552 and the transmission shaft 553 in sequence. One end of the rotating bearing 555 is fixed on the bottle insertion fixing plate 556 and the other end is located in the wire groove of the cam plate 554. The rotating bearing 555 moves up and down with the rotation of the cam plate 554. The tension spring bracket 557 is connected to the cam plate 554 through the third speed reducer 552 and the transmission shaft 553. At least two groups are arranged on the bottle inserting fixing plate 556. Each group of tension spring brackets 558 is an inverted U-shape formed by splicing two L-shaped parts. The tension springs 557 are fixed to the two opening ends of the tension spring brackets 558. The two rotating pins 559 are respectively located at the positions of the two L-shaped parts on the tension spring brackets 558 close to the splicing. The two ends of the inverted U-shape of the two groups of tension spring brackets 558 are respectively connected to the two ends of the clamping plates 5510 on both sides. The clamping plates 5510 on both sides are arranged parallel to the track group 4 and are used to clamp the pressure head. The clamping plates 5510 on both sides extend to the intersection of the track group 4 and the bottle transport turntable mechanism 6. Figure 5 It can be seen that in this embodiment, the tension spring 557, the tension spring bracket 558, and the rotating pin 559 are provided in two groups and arranged in parallel, the cam plate 554 and the rotating bearing 555 are located in the middle of the two groups, and the clamping plates 5510 on both sides are correspondingly provided with two groups and an extension plate is provided on the side close to the bottle turntable mechanism 6, and the extension plate extends to the junction of the track group 4 and the bottle turntable mechanism 6.

[0074] As can be seen from the above, when the bottle insertion motor 551 is at the end position, the cam plate 554 is driven to rotate, and the rotating bearing 555 moves downward with the rotation of the cam plate 554, and the clamping plates 5510 on both sides press down against the pressure head of the pressure rod 513, so that the plug connector 512 is inserted downward into the bottle 400. After that, the bottle 400 rotates with the spring-type bottle insertion head mechanism 51 to the intersection of the track group 4 and the bottle transport turntable mechanism 6. When the pressure of the clamping plate 5510 is lost, the compression spring drives the plug connector 512 to rebound and release the bottle 400.

[0075] like Figure 4 It can be known that the inlet side of the bottle transport turntable mechanism 6 is aligned with the outlet side of the track group 4 , and the outlet side of the bottle transport turntable mechanism 6 is used to connect to the filling machine 300 .

[0076] like Figure 3It can be seen that the bottle transport turntable mechanism 6 includes a rotating disk 61 in the same plane as the track and an arc-shaped clamping plate 62 outside the rotating disk 61. The rotating disk 61 is provided with an arc-shaped opening 621. The arc-shaped opening 621 and the arc-shaped clamping plate 62 form a third clamping opening 63. The third clamping opening 63 is used to clamp the clamping ring on the head of the bottle 400. The outlet side of the track group 4 is located on the rotation path of the rotating disk 61. In this way, the bottle 400 on the outlet side of the track group 4 is clamped on the arc-shaped clamping plate 62 by the arc-shaped opening 621 and moves with the rotation of the bottle transport turntable mechanism 6.

[0077] like Figure 4 It can be known that the bottle transport turntable mechanism 6 includes a turntable bracket 64 and a rotating motor 65, a first reducer 66, a connecting shaft 67, a transfer shaft 68 and a gear plate 69 located on the turntable bracket 64. There are multiple groups of gear plates 69 and rotating disks 61, and each group of gear plates 69 and rotating disks 61 are connected through a transfer shaft 68. The rotating motor 65 is connected to one of the gear plates 69 through the first reducer 66 and the connecting shaft 67 in turn, and the adjacent gear plates 69 are meshed with each other. Multiple rotating disks 61 are arranged adjacent to each other, and the arc-shaped openings 621 of two adjacent rotating disks 61 form a fourth clamping opening 610 at a position close to each other. The arc-shaped clamping plate 62 is only arranged so that the rotating disk 61 can clamp the bottle 400 on the rotating path. Therefore, the adjacent rotating disks 61 complete the handover of the bottle 400 until it enters the filling machine 300.

[0078] Therefore, the working principle of this embodiment is as follows:

[0079] 1. When the bottles 400 are neatly arranged and moved out of the bottle blowing machine 200, the multiple spring clamp mechanisms 3 in the initial position move forward to grab the bottle mouths of the bottles 400 while the alternating telescopic power mechanism 22 works, and at the same time controls the clamps on the bottle blowing machine 200 to move backward for synchronous alternation. When the bottles 400 are alternating, the multi-guide groove variable pitch mechanism 24 moves the spring clamp mechanism 3 and the bottles 400 horizontally under the drive of the lateral movement power mechanism 23. Since the multi-guide groove variable pitch mechanism 24 is a double cam structure, the multi-guide groove cam cylinder 242 rotates to perform a variable pitch action, and enters the track group 4 when it moves horizontally to the end position;

[0080] 2. When the multi-guide slot variable pitch mechanism 24 moves horizontally to the designated position and the variable pitch is completed, the spring clamp mechanism 3 clamps the bottle 400 and its center is aligned with the center of the plug connector 512 on the spring-type bottle inserting head mechanism 51, the cam bottle inserting mechanism 55 rotates 180 degrees, and the cam bottle inserting mechanism 55 reaches the lower end and presses down to drive the spring-type bottle inserting head mechanism 51 to be pressed down on the center of the bottle mouth. At this time, the alternating telescopic motor 221 drives the screw rod 224 to drive several parallel spring clamp mechanisms 3 to retreat and release the bottle 400. The bottle 400 is supported by the spring-type bottle inserting head mechanism 51 and the track group 4 so that it will not fall.

[0081] 3. The power sprocket mechanism 52 rotates to drive the bottle transport chain mechanism 53 forward. After the bottle 400 enters the bottle transport turntable mechanism 6 and is firmly positioned at the corresponding disc opening, the spring-type bottle inserting head mechanism 51 rebounds to release the bottle mouth of the bottle 400, and the bottle 400 enters the bottle transport turntable mechanism 6 one after another, and the bottle transport turntable mechanism 6 transports the bottle 400 to the filling machine 300.

[0082] Among them, after the power sprocket mechanism 52 rotates to the set gear number, the cam bottle insertion mechanism 55 first rotates up 180 degrees, and the cam bottle insertion mechanism 55 reaches the upper end to prepare for the next cycle.

[0083] 4. After the spring clamp mechanism 3 retreats to release the bottle 400, the multi-guide groove variable pitch mechanism 24 moves laterally back to the initial position, the multi-guide groove cam cylinder 242 rotates to perform a variable pitch action and returns to the initial position, and the multiple spring clamp mechanisms 3 return to the closed state, waiting for the next alternating grasping.

[0084] Among them, steps 3 and 4 are performed simultaneously, so that after the bottles 400 in the track group 4 enter the bottle transfer turntable mechanism 6 , a new round of bottles 400 begins to move transversely into the track group 4 .

[0085] The above operations are a cycle, which is an endless cycle process in continuous production.

[0086] Therefore, compared with the air duct of the prior art, the space occupied by the bottle blowing machine connected to the filling mechanism of this embodiment is smaller and does not require blowing. Therefore, this embodiment not only reduces the occupied space, but also can ensure the reliability of bottle transportation and alternation, and also ensure that the bottle 400 is as free from contamination as possible before filling, flexibly meeting the food-grade production requirements, and can also meet the high-speed, stable and continuous production requirements of bottled water.

[0087] Therefore, it should be noted that the specific selection of each module in this embodiment is a specific example. In other equivalent embodiments, models that can meet the corresponding functions can be used for replacement.

[0088] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0089] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0090] In the present utility model, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0091] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0092] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A bottle blowing machine connected to a filling mechanism, located between the bottle blowing machine and the filling machine, characterized in that: It includes a main frame, a variable pitch bottle transport mechanism, a spring clamp mechanism, a track group, a circulating transmission mechanism and a bottle transport turntable mechanism; The variable pitch bottle transport mechanism is arranged on the main frame, and its control end is connected to the spring clamp mechanism, and is used to drive the variable pitch bottle transport mechanism to move from an initial position to an end position, the first clamping opening of the spring clamp mechanism at the initial position is used to face the bottle outlet of the bottle blowing machine, and the first clamping opening of the spring clamp mechanism when it moves horizontally to the end position is aligned with the second clamping opening at the middle position of the track group, and the second clamping opening is used to clamp the clamp ring on the bottle head; The circulating conveying mechanism is located above the track group, and the circulating conveying mechanism includes a plurality of spring-type bottle inserting head mechanisms, the spacing between adjacent spring-type bottle inserting head mechanisms is the same as the spacing between adjacent spring clamp mechanisms at the terminal position, and the spring-type bottle inserting head mechanism is used to be detachably connected to the bottle mouth of the bottle; The bottle transport turntable mechanism comprises a rotating disk in the same plane as the track and an arc-shaped clamping plate outside the rotating disk, the rotating disk is provided with an arc-shaped opening, the arc-shaped opening and the arc-shaped clamping plate form a third clamping opening, and the third clamping opening is used to clamp the clamping ring on the bottle head; The exit side of the track set is located on the rotation path of the rotating disk, and the rotation path of the rotating disk also passes through the filling machine.

2. A bottle blowing machine connected to a filling mechanism according to claim 1, characterized in that: The circulating transmission mechanism includes a power sprocket mechanism, a bottle transport chain mechanism, a driven sprocket mechanism, and a cam bottle insertion mechanism; The bottle transport chain mechanism is mounted on the power sprocket mechanism and the driven sprocket mechanism to form a sprocket transmission structure. The spring-type bottle inserting head mechanism is located on the bottle transport chain mechanism. The bottle transport chain mechanism drives the spring-type bottle inserting head mechanism to align one by one with the center of the first clamping opening of each spring clamp mechanism on the track group. The cam bottle inserting mechanism is fixed on the main frame and is located above the spring-type bottle inserting head mechanism above the track group. The cam bottle inserting mechanism moves up and down and is detachably connected to one end of the spring-type bottle inserting head mechanism. The other end of the spring-type bottle inserting head mechanism is used for detachably connecting to the bottle mouth of the bottle.

3. A bottle blowing machine connected to a filling mechanism according to claim 2, characterized in that: The spring-type bottle head inserting mechanism includes a cylindrical tube, a plug connector, a compression spring and a pressure rod. The compression spring is located in the cylindrical tube and fixed in the cylindrical tube. One end of the pressure rod passes through the compression spring and is connected to the plug connector. The other end of the pressure rod is provided with a pressure head, and the pressure rod is provided with a flange above the compression spring to press the compression spring.

4. A bottle blowing machine connected to a filling mechanism according to claim 3, characterized in that: The cam bottle insertion mechanism includes a bottle insertion motor, a third reducer, a transmission shaft, a cam plate, a rotating bearing, a bottle insertion fixing plate, a tension spring, a tension spring bracket, a rotating pin and a clamping plate. The bottle insertion motor is connected to the cam plate through the third reducer and the transmission shaft in sequence. One end of the rotating bearing is fixed to the bottle insertion fixing plate and the other end is located in the wire groove of the cam plate. The rotating bearing moves up and down with the rotation of the cam plate. The tension spring bracket is provided with at least two groups on the bottle insertion fixing plate. Each group of the tension spring brackets is an inverted U-shape formed by splicing two L-shaped parts. The tension spring is fixed to the two opening ends of the tension spring bracket. The two rotating pins are respectively located at the positions of the two L-shaped parts on the tension spring bracket, respectively, and the two ends of the inverted U-shape of the two groups of the tension spring brackets are respectively connected to the two ends of the clamping plates on both sides. The clamping plates on both sides are arranged in parallel with the track group and are used to clamp the pressure head. The clamping plates on both sides extend to the junction of the track group and the bottle transport turntable mechanism.

5. A bottle blowing machine connected to a filling mechanism according to claim 1, characterized in that: The bottle transport turntable mechanism comprises a turntable bracket and a rotating motor, a first reducer, a connecting shaft, a transfer shaft and a gear plate located on the turntable bracket. The gear plates and the rotating disks are provided in multiple groups, and the gear plates and the rotating disks of each group are connected by a transfer shaft. The rotating motor is connected to one of the gear plates in turn through the first reducer and the connecting shaft, and the adjacent gear plates are meshed with each other. A plurality of rotating disks are arranged adjacent to each other, and the arc-shaped openings of two adjacent rotating disks form a fourth clamping opening at mutually close positions, and the arc-shaped clamping plate is only arranged on the rotation path where the rotating disk can clamp the bottle.

6. A bottle blowing machine connected to a filling mechanism according to claim 1, characterized in that: The track set comprises two opposite knife-shaped tracks, with the knife edges lying flat and facing inwards.

7. A bottle blowing machine connected to a filling mechanism according to any one of claims 1 to 6, characterized in that: The variable pitch bottle transport mechanism includes a fixed frame, an alternating telescopic power mechanism, a lateral movement power mechanism and a multi-guide groove variable pitch mechanism located on the fixed frame. The lateral movement power mechanism and the alternating telescopic power mechanism are arranged on the main frame and are both connected to the fixed frame. A plurality of spring clamp mechanisms are arranged on the multi-guide groove variable pitch mechanism.

8. A bottle blowing machine connected to a filling mechanism according to claim 7, characterized in that: The multi-guide groove variable pitch mechanism comprises a driving cam shaft fixed on a fixing frame and a multi-guide groove cam barrel sleeved on the driving cam shaft, the driving cam shaft is provided with a spiral groove on its surface, the multi-guide groove cam barrel is provided with a rotary bearing, the rotary bearing is located in the spiral groove, the multi-guide groove variable pitch mechanism is provided with a plurality of spiral variable pitch guide grooves on its surface, and the spacing between adjacent variable pitch guide grooves changes uniformly along the spiral direction of the variable pitch guide grooves; The output end of the lateral movement force mechanism is connected to the multi-guide groove cam barrel, one end of the spring clamp mechanism is located in the variable pitch guide groove, and its first clamping port is set outward, the lateral movement force mechanism drives the multi-guide groove cam barrel to move laterally on the driving cam shaft, and the rotating bearing in the multi-guide groove cam barrel is restricted by the spiral groove and follows the rotation, and the variable pitch guide groove drives the spring clamp mechanism to move and change the pitch as the multi-guide groove cam barrel rotates.

9. A bottle blowing machine connected to a filling mechanism according to claim 7, characterized in that: The variable pitch bottle transport mechanism further includes a plurality of groups of first linear rails and first sliders, wherein the first linear rails are fixed on the fixing frame and are evenly distributed along the length direction of the fixing frame, and the first sliders are connected to the main frame and slide forward and backward along the first linear rails; The alternating telescopic power mechanism includes an alternating telescopic motor, a coupling, a bearing seat, a screw rod, a nut and a connecting seat. The alternating telescopic motor is connected to one end of the screw rod through the coupling. The screw rod is located in the bearing seat, and the other end is threadedly connected to the nut. The nut is located in the connecting seat. The connecting seat is fixedly connected to the fixed frame. The alternating telescopic motor drives the fixed frame to slide back and forth through the screw rod, the nut and the connecting seat in sequence.

10. A bottle blowing machine connected to a filling mechanism according to claim 8, characterized in that: A fourth linear rail is arranged below the multi-guide slot variable pitch mechanism, and the spring clamp mechanism comprises a clamp fixing seat and left and right clamping claws, a spring, a guard plate, a fixing pin, a variable pitch bearing and a fourth slider arranged on the clamp fixing seat; The front ends of the left and right clamps form a first clamping opening, and the rear ends are sleeved on a connecting rod, the spring is sleeved on the connecting rod and clamped in the middle by the rear ends of the left and right clamps, the guard plate is arranged on the bottom surface of the clamp fixing seat, two fixing pins are arranged, and they pass through the middle areas of the left and right clamps respectively and are fixedly connected with the guard plate, the variable pitch bearing is fixed on one end of the clamp fixing seat close to the multi-guide groove cam cylinder, and the variable pitch bearing is located in the variable pitch guide groove; The fourth sliding block is slidably connected to the fourth linear rail, and the sliding direction is consistent with the lateral moving direction of the multi-guide groove cam barrel.

Images