Bottle preform processing manipulator based on three-axis platform

Abstract

The invention relates to the technical field of bottle preform processing, in particular to a bottle preform processing manipulator based on a three-axis platform, which comprises a conveying platform, positioning rods are respectively arranged on the left side and the right side of the rear side of the conveying platform, and a manipulator main body is arranged at the top of the conveying platform. Positioning mechanisms are arranged on the left side and the right side of the rear side of the manipulator body correspondingly, laser headers are arranged on the tops of the two positioning mechanisms correspondingly, the two positioning rods comprise L-shaped positioning rods, positioning blocks are fixedly connected to the middles of the front sides of the two L-shaped positioning rods correspondingly, and the two positioning mechanisms comprise positioning control mechanisms correspondingly. According to the automatic bottle blank grabbing device, the positioning rod, the positioning mechanism and the laser marking head are arranged, efficient and accurate moving and positioning of the mechanical arm are achieved, the bottle blank grabbing precision and efficiency are improved, the cleanliness of the machining environment is effectively kept, and the automatic bottle blank grabbing device is suitable for popularization and application. And a solid foundation is laid for subsequent processing of the bottle preform.

Description

Technical Field

[0001] The present invention relates to the technical field of preform processing, and more specifically, to a manipulator for preform processing based on a three-axis platform. Background Art

[0002] Preform processing is a professional term that describes the entire process of processing plastic raw materials into preforms through a series of technological processes such as injection molding. As an intermediate product in the bottle production process, the quality and precision of the preform will directly affect the subsequent blow molding process, and thus have a decisive impact on the quality of the final bottle. In this series of preform processing processes, the manipulator plays a crucial role. It ensures the production efficiency and quality standards of the preforms through precise operations and controls.

[0003] According to the patent document: CN216760776U, a clamping manipulator for blow molding preform processing is disclosed, which includes a frame, a fixture, and a flipping motor for driving the fixture to flip. The fixture moves in the X-axis, Y-axis, and Z-axis directions on the frame. The fixture includes a bottom frame and a plurality of clamping cylinders. Multiple rows of material transfer holes penetrating the entire bottom frame are opened on the bottom frame; by setting the fixture, the fixture can move in the X-axis, Y-axis, and Z-axis directions on the frame, enabling the fixture to move in multiple directions to drive the fixture to a set position for clamping the blow molding preform on the mold; then, by opening a plurality of material transfer holes on the bottom frame of the fixture for the blow molding preform to be inserted, multiple blow molding preforms can be clamped at one time, with strong practicability; in addition, by setting the clamping cylinders and clamping blocks, the clamping cylinders are used to drive each two clamping blocks outside the same row of material transfer holes to approach each other to clamp the blow molding preform.

[0004] After the preform processing is completed, it is necessary to use a manipulator to accurately place the finished preform on the conveyor belt for subsequent packaging or further processing. However, the operation of traditional manipulators depends on the instructions of the staff. The translational movement from the processing area to the placement point is achieved through a moving platform, and then the preform is clamped and translated to the conveyor belt. During this process, the staff operates only based on instructions, lacking precise control and optimization of details such as the placement position of the conveyor belt and the movement path of the manipulator. This approach may lead to errors in instruction transmission and position deviation of the manipulator during the clamping process, resulting in preform damage, reduced production efficiency. In addition, an unreasonable movement path will increase the running time of the manipulator, increase energy consumption, lead to low operating efficiency, and may increase the risk of preform damage during processing and transportation. Summary of the Invention

[0005] To overcome the above defects of the prior art, the present invention provides a manipulator for preform processing based on a three-axis platform. The technical problem to be solved by the present invention is that the staff operates only according to instructions, lacking precise control and optimization of details such as the placement position of the conveyor belt and the movement path of the manipulator. This approach may lead to errors in instruction transmission and position deviation of the manipulator during the clamping process, thereby causing damage to the preforms, reducing production efficiency. In addition, an unreasonable movement path will increase the operating time of the manipulator, increase energy consumption, result in low operating efficiency, and may increase the risk of damage to the preforms during processing and transportation.

[0006] To solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A manipulator for preform processing based on a three-axis platform, including a conveyor platform. On the left and right sides of the rear side of the conveyor platform, positioning rods are respectively arranged. On the top of the conveyor platform, a manipulator main body is arranged. On the left and right sides of the rear side of the manipulator main body, positioning mechanisms are respectively arranged. On the top of the two positioning mechanisms, laser markers are arranged.

[0008] Both of the two positioning rods include L-shaped positioning rods. In the middle of the front sides of the two L-shaped positioning rods, positioning blocks are fixedly connected.

[0009] Both of the two positioning mechanisms include positioning control mechanisms. On the front sides of the two positioning control mechanisms, baffles are movably connected.

[0010] As a further solution of the present invention: The positioning mechanism includes two side plates. On the top and bottom of the side plate close to the manipulator main body, connecting rods are fixedly connected. On the rear sides of the outer sides of the two side plates, sliding grooves are opened. On the top and bottom of the rear sides of the inner sides of the two side plates, guide rail rod connection blocks are fixedly connected. Inside the inner walls of the two groups of guide rail rod connection blocks, guide rail rods are fixedly connected.

[0011] As a further solution of the present invention: On the top and bottom of the inner sides of the two side plates, cross plates are respectively fixedly connected. In the middle of the tops of the two cross plates, hinge grooves are opened. Inside the two hinge grooves, columnar cross bars are fixedly connected. On the top and bottom of the middle parts of the inner sides of the two side plates, connecting plates are fixedly connected. On the front sides of the two connecting plates, dust collectors are fixedly connected.

[0012] As a further solution of the present invention: diamond-shaped rotating plates are rotatably connected to the middle parts of the rear sides of the two connecting plates. Rotating rods are rotatably connected to the two sides of the inner sides of the two diamond-shaped rotating plates that are far away from each other. The two groups of rotating rods are rotatably connected to the expanding and contracting connecting plates on the sides far away from the diamond-shaped rotating plates. Spring connecting blocks are fixedly connected to the top and bottom of the outer side of the rear side of the side plate on the side far away from the manipulator main body. Z-shaped clamping plates are fixedly connected to the inner sides of the two expanding and contracting connecting plates on the inner side. Z-shaped clamping plate sliders are fixedly connected to the left and right sides of the two Z-shaped clamping plates respectively. The outer walls of the two groups of Z-shaped clamping plate sliders are respectively slidably connected to the inner walls of the two chutes, and the inner walls of the two groups of Z-shaped clamping plate sliders are respectively slidably connected to the outer walls of the two guide rods.

[0013] As a further solution of the present invention: a chute column is fixedly connected to the rear side of the middle part of the outer side of the side plate on the side far away from the manipulator main body. A push-pull block is slidably connected to the inner wall of the chute column. A push-pull block connecting block is fixedly connected to the front side of the push-pull block. A hydraulic push rod is fixedly connected to the side of the push-pull block connecting block close to the side plate. The side of the hydraulic push rod far away from the push-pull block connecting block is fixedly connected to the outer side of the side plate.

[0014] As a further solution of the present invention: the baffle includes two baffle bodies. Baffle expanding and contracting plate connecting rods are fixedly connected to the sides of the middle parts of the rear sides of the two baffle bodies that are far away from each other. The rear sides of the two baffle bodies are respectively attached to the front sides of the two dust collectors. Baffle expanding and contracting plates are fixedly connected to the rear sides of the two baffle expanding and contracting plate connecting rods. Baffle expanding and contracting plate sliders are fixedly connected to the left and right sides of the two baffle expanding and contracting plates. The outer walls of the two groups of baffle expanding and contracting plate sliders are respectively slidably connected to the inner walls of the two chutes, and the inner walls of the two groups of baffle expanding and contracting plate sliders are respectively slidably connected to the outer walls of the two guide rods.

[0015] As a further solution of the present invention: the two baffle expanding and contracting plate sliders extend to the outer side of the side plate and are both fixedly connected to hinge rod connecting blocks. Two springs are fixedly connected to the outer sides of the two hinge rod connecting blocks. The outer ends of the two springs are respectively fixedly connected to the inner sides of the two spring connecting blocks.

[0016] As a further solution of the present invention: double-directional hinge rods are rotatably connected to the inner sides of the two hinge rod connecting blocks. The sides of the two double-directional hinge rods far away from the hinge rod connecting blocks are respectively rotatably connected to the top and bottom of the push-pull block.

[0017] As a further solution of the present invention: the inner sides of the two baffle expanding and contracting plates are respectively fixedly connected to the outer sides of the two expanding and contracting connecting plates on the outer side.

[0018] As a further solution of the present invention: the laser marking head includes a vertical pole, the bottom of the vertical pole is fixedly connected to the top middle part of the top baffle expansion plate, the top of the vertical pole is rotatably connected to a two-way hinge block, the top of the two-way hinge block is rotatably connected to a Z-shaped rotating rod, the front side of the bottom inner wall of the Z-shaped rotating rod is rotatably connected to the outer wall of the columnar cross bar, the top front side of the Z-shaped rotating rod is fixedly connected to a positioning laser head, the outer wall of the Z-shaped rotating rod is provided with a protective bin, the bottom of the protective bin is fixedly connected to the middle part of the top cross plate.

[0019] The beneficial effects of the present invention are:

[0020] 1. The present invention realizes efficient and accurate movement and positioning of the manipulator by providing a positioning rod, a positioning mechanism and a laser marking head, which not only improves the accuracy and efficiency of grabbing the bottle preform, but also effectively keeps the processing environment clean and tidy, laying a solid foundation for the subsequent processing of the bottle preform. Specifically, the positioning rod is located at the rear side of the conveying platform to move the manipulator body to the required position. After the hydraulic push rod is started, the push-pull block drives the two-way hinged rod to rotate, pushing the baffle expansion plate slider and the baffle expansion plate to move outward, so that the baffle body no longer blocks the vacuum cleaner. The vacuum cleaner is then started to suck in the debris and dust around the bottle preform. Dust, when the baffle expansion plate moves outward, the rotating rod is driven by the expansion connecting plate to rotate the diamond rotating plate, pushing the Z-shaped splint to move inward to the outer wall of the positioning block, ensuring the accurate positioning of the robot body and avoiding deviation during the grasping and placing process. At the same time, the top baffle expansion plate moves upward, driving the Z-shaped rotating rod to rotate the positioning laser head to perform positioning measurement on the bottle preform clamping point. The robot body clamps the bottle preform through the telescopic and grasping functions, moves to the designated position and places it. The positioning of the Z-shaped splint ensures that the bottle preform does not deviate during operation, improving processing accuracy and efficiency. The vacuum cleaner continuously works to clean debris and dust, keeping the processing environment clean and tidy, and improving processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the main three-dimensional structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the main body three-dimensional separation structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the positioning rod of the present invention;

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the positioning mechanism and the laser marking head of the present invention;

[0025] Figure 5 It is a schematic diagram of the three-dimensional separation structure of the positioning mechanism of the present invention;

[0026] Figure 6Schematic diagram of the rear-view three-dimensional separation structure of the positioning control mechanism of the present invention;

[0027] Figure 7 Schematic diagram of the front-view three-dimensional structure of the positioning control mechanism of the present invention;

[0028] Figure 8 Schematic diagram of the three-dimensional structure of the baffle of the present invention;

[0029] Figure 9 Schematic diagram of the three-dimensional structure of the laser head of the present invention;

[0030] Figure 10 Schematic diagram of the three-dimensional separation structure of the laser head of the present invention.

[0031] In the figure: 1, transfer platform; 2, manipulator main body; 3, positioning rod; 31, L-shaped positioning rod; 32, positioning block; 4, positioning mechanism; 41, positioning control mechanism; 411, side plate; 412, connecting rod; 413, cross plate; 414, hinge groove; 415, columnar cross bar; 416, chute; 417, guide rail rod connecting block; 418, guide rail rod; 419, connecting plate; 4110, diamond-shaped rotating plate; 4111, rotating rod; 4112, retracting and expanding connecting plate; 4113, chute column; 4114, push-pull block; 4115, hydraulic push rod; 4116, push-pull block connecting block; 4117, Z-shaped clamping plate; 4118, Z-shaped clamping plate slider; 4119, spring connecting block; 4120, dust collector; 42, baffle; 421, baffle main body; 422, baffle retracting and expanding plate connecting rod; 423, baffle retracting and expanding plate; 424, baffle retracting and expanding plate slider; 425, hinge rod connecting block; 426, spring; 427, double-direction hinge rod; 5, laser head; 51, vertical rod; 52, double-direction hinge block; 53, Z-shaped rotating rod; 54, positioning laser head; 55, protective chamber. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] As Figure 1-2 shown, the present invention provides a manipulator for bottle preform processing based on a three-axis platform, including a transfer platform 1. Positioning rods 3 are respectively arranged on the left and right sides at the rear of the transfer platform 1. A manipulator main body 2 is arranged on the top of the transfer platform 1. Positioning mechanisms 4 are respectively arranged on the left and right sides at the rear of the manipulator main body 2. Laser heads 5 are arranged on the tops of the two positioning mechanisms 4.

[0034] Such as Figures 3-10As shown in the figure, both of the two positioning rods 3 include L-shaped positioning rods 31. At the middle part of the front side of the two L-shaped positioning rods 31, positioning blocks 32 are fixedly connected. Both of the two positioning mechanisms 4 include positioning control mechanisms 41. At the front side of the two positioning control mechanisms 41, baffles 42 are movably connected. The positioning mechanism 4 includes two side plates 411. At the top and bottom of the side plate 411 close to the manipulator main body 2, connecting rods 412 are fixedly connected. At the rear side of the outer sides of the two side plates 411, sliding grooves 416 are opened. At the top and bottom of the inner rear sides of the two side plates 411, guide rail rod connection blocks 417 are fixedly connected. Inside the two groups of guide rail rod connection blocks 417, guide rail rods 418 are fixedly connected. At the top and bottom of the inner sides of the two side plates 411, cross plates 413 are respectively fixedly connected. At the middle part of the top of the two cross plates 413, hinge grooves 414 are opened. Inside the two hinge grooves 414, columnar cross bars 415 are fixedly connected. At the top and bottom of the middle part of the inner sides of the two side plates 411, connecting plates 419 are fixedly connected. At the front side of the two connecting plates 419, dust collectors 4120 are fixedly connected. At the middle part of the rear side of the two connecting plates 419, diamond-shaped rotating plates 4110 are rotatably connected. At the two sides of the inner sides of the two diamond-shaped rotating plates 4110 away from each other, rotating rods 4111 are rotatably connected. At the side of the two groups of rotating rods 4111 away from the diamond-shaped rotating plates 4110, expansion and contraction connecting plates 4112 are rotatably connected. At the top and bottom of the outer rear side of the side plate 411 away from the manipulator main body 2, spring connection blocks 4119 are fixedly connected. Inside the two expansion and contraction connecting plates 4112 on the inner side, Z-shaped clamping plates 4117 are fixedly connected. At the left and right sides of the two Z-shaped clamping plates 4117, Z-shaped clamping plate sliders 4118 are respectively fixedly connected. The outer walls of the two groups of Z-shaped clamping plate sliders 4118 are respectively slidably connected to the inner walls of the two sliding grooves 416. The inner walls of the two groups of Z-shaped clamping plate sliders 4118 are respectively slidably connected to the outer walls of the two guide rail rods 418. At the rear side of the middle part of the outer side of the side plate 411 away from the manipulator main body 2, a sliding groove column 4113 is fixedly connected. Inside the sliding groove column 4113, a push-pull block 4114 is slidably connected. At the front side of the push-pull block 4114, a push-pull block connection block 4116 is fixedly connected. At the side of the push-pull block connection block 4116 close to the side plate 411, a hydraulic push rod 4115 is fixedly connected. At the side of the hydraulic push rod 4115 away from the push-pull block connection block 4116, it is fixedly connected to the outer side of the side plate 411. The baffle 42 includes two baffle main bodies 421. At the two sides of the middle part of the rear side of the two baffle main bodies 421 away from each other, baffle expansion and contraction plate connecting rods 422 are fixedly connected. The rear sides of the two baffle main bodies 421 are respectively attached to the front sides of the two dust collectors 4120. At the rear side of the two baffle expansion and contraction plate connecting rods 422, baffle expansion and contraction plates 423 are fixedly connected. At the left and right sides of the two baffle expansion and contraction plates 423, baffle expansion and contraction plate sliders 424 are respectively fixedly connected. The outer walls of the two groups of baffle expansion and contraction plate sliders 424 are respectively slidably connected to the inner walls of the two sliding grooves 416. The inner walls of the two groups of baffle expansion and contraction plate sliders 424 are respectively slidably connected to the outer walls of the two guide rail rods 418,The two baffle expansion and contraction plate sliders 424 extend to the outside of the side plate 411 and are both fixedly connected with hinge rod connection blocks 425. Two springs 426 are fixedly connected to the outside of the two hinge rod connection blocks 425. The outer ends of the two springs 426 are respectively fixedly connected to the inner sides of the two spring connection blocks 4119. Two double-direction hinge rods 427 are rotatably connected to the inner sides of the two hinge rod connection blocks 425. One side of the two double-direction hinge rods 427 away from the hinge rod connection blocks 425 is respectively rotatably connected to the top and bottom of the push-pull block 4114. The inner sides of the two baffle expansion and contraction plates 423 are respectively fixedly connected to the outside of the two outer expansion and contraction connection plates 4112. The laser marking head 5 includes a vertical rod 51. The bottom of the vertical rod 51 is fixedly connected to the middle of the top of the top baffle expansion and contraction plate 423. The top of the vertical rod 51 is rotatably connected with a double-direction hinge block 52. The top of the double-direction hinge block 52 is rotatably connected with a Z-shaped rotating rod 53. The front side of the inner wall of the bottom of the Z-shaped rotating rod 53 is rotatably connected to the outer wall of the columnar cross bar 415. The front side of the top of the Z-shaped rotating rod 53 is fixedly connected with a positioning laser head 54. A protective chamber 55 is arranged on the outer wall of the Z-shaped rotating rod 53. The bottom of the protective chamber 55 is fixedly connected to the middle of the top cross plate 413;

[0035] When the processed preforms need to be moved, first assemble the two positioning rods 3 at the rear side of the transfer platform 1 according to the positions of the processing table and the transfer table. Then start the manipulator main body 2 and move it to the required position through the transfer platform 1. At this time, start the hydraulic push rod 4115. After the hydraulic push rod 4115 starts, it pulls the push-pull block 4114 to move towards the side close to the side plate 411. The movement of the push-pull block 4114 drives the two double-direction hinge rods 427 to rotate, and then pushes the two hinge rod connection blocks 425 to move outwards. The movement of the two hinge rod connection blocks 425 drives the baffle expansion and contraction plate sliders 424 and the baffle expansion and contraction plates 423 to move outwards. The outward movement of the two baffle expansion and contraction plates 423 drives the baffle main body 421 to move through the baffle expansion and contraction plate connecting rod 422 and no longer block the dust collector 4120. At this time, the dust collector 4120 starts to suck the debris and dust around the preforms into the dust collector 4120;

[0036] When the two baffle expansion and contraction plates 423 move outwards, they drive the rotating rod 4111 through the two outer expansion and contraction connection plates 4112 to pull the diamond-shaped rotating plate 4110 to rotate. The rotation of the diamond-shaped rotating plate 4110 drives the two Z-shaped clamping plates 4117 to move inwards through the two inner rotating rods 4111 and the expansion and contraction connection plates 4112 until the two Z-shaped clamping plates 4117 move inwards and are stuck on the outer wall of the positioning block 32 at the required position. At this time, the position of the whole manipulator main body 2 can be positioned to ensure that the manipulator main body 2 will not deviate during the process of grasping and placing;

[0037] When the two baffle expansion plates 423 move outward, the top baffle expansion plate 423 moves upward, driving the vertical rod 51 and the double-jointed block 52 upward. The movement of the double-jointed block 52 drives the Z-shaped rotating rod 53 to rotate around the outer wall of the columnar crossbar 415. The 90-degree rotation of the Z-shaped rotating rod 53 drives the positioning laser head 54 to face forward, thereby performing positioning measurement on the bottle preform clamping position to ensure the accurate position of the manipulator body 2. After the positioning is completed, the manipulator body 2 can clamp the bottle preform through the telescopic and grasping functions of the robotic arm, and then move it to the designated position for placement. During the entire movement and placement process, since the Z-shaped clamping plate 4117 has positioned the overall position of the manipulator body 2, it can ensure that the bottle preform does not shift during the grasping and placement process, greatly improving the processing accuracy and efficiency. At the same time, the continuous operation of the dust collector 4120 can effectively clean up the debris and dust around the bottle preform, keep the processing environment clean, and further improve the processing quality.

[0038] Working principle of the present invention: When it is necessary to move the processed preforms, first, two positioning rods 3 are assembled at the rear side of the conveying platform 1 according to the positions of the processing table and the conveying table. Then, the manipulator main body 2 is started and moved to the required position through the conveying platform 1. At this time, the hydraulic push rod 4115 is started. After the hydraulic push rod 4115 is started, it pulls the push-pull block 4114 to move towards the side close to the side plate 411. The movement of the push-pull block 4114 drives the rotation of two double-direction articulated rods 427, and then pushes two articulated rod connecting blocks 425 to move outwards. The movement of the two articulated rod connecting blocks 425 drives the baffle expansion and contraction plate slider 424 and the baffle expansion and contraction plate 423 to move outwards. The outward movement of the two baffle expansion and contraction plates 423 drives the baffle main body 421 to move through the baffle expansion and contraction plate connecting rod 422 and no longer block the dust collector 4120. At this time, the dust collector 4120 is started to suck the debris and dust around the preform into the dust collector 4120. When the two baffle expansion and contraction plates 423 move outwards, the two outer expansion and contraction connecting plates 4112 drive the rotating rod 4111 to pull the diamond-shaped rotating plate 4110 to rotate. The rotation of the diamond-shaped rotating plate 4110 drives the two Z-shaped clamping plates 4117 to move inwards through the two inner rotating rods 4111 and the expansion and contraction connecting plates 4112 until the two Z-shaped clamping plates 4117 move inwards and are clamped on the outer wall of the positioning block 32 at the required position. At this time, the overall position of the manipulator main body 2 can be positioned to ensure that the manipulator main body 2 will not shift during the grasping and placing process. When the two baffle expansion and contraction plates 423 move outwards, the top baffle expansion and contraction plate 423 moves upwards and drives the vertical rod 51 and the double-direction articulated block 52 to move upwards. The movement of the double-direction articulated block 52 drives the Z-shaped rotating rod 53 to rotate around the outer wall of the columnar cross bar 415. The 90-degree rotation of the Z-shaped rotating rod 53 drives the positioning laser head 54 to face the front, so as to perform positioning measurement on the preform clamping position to ensure the accurate position of the manipulator main body 2. After the positioning is completed, the manipulator main body 2 can clamp the preform through the telescopic and grasping functions of the robotic arm, and then move to the designated position for placement. During the entire movement and placement process, since the Z-shaped clamping plates 4117 have positioned the overall position of the manipulator main body 2, it can be ensured that the preform will not shift during the grasping and placing process, greatly improving the processing accuracy and efficiency. At the same time, the continuous operation of the dust collector 4120 can effectively clean the debris and dust around the preform, keep the processing environment clean, and further improve the processing quality.

[0039] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and the description in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A manipulator for bottle preform processing based on a three-axis platform, characterized in that: It includes a transfer platform (1). On the left and right sides at the rear of the transfer platform (1), positioning rods (3) are respectively arranged. On the top of the transfer platform (1), a manipulator main body (2) is arranged. On the left and right sides at the rear of the manipulator main body (2), positioning mechanisms (4) are respectively arranged. On the top of the two positioning mechanisms (4), laser marking heads (5) are arranged. Both of the two positioning rods (3) include L-shaped positioning rods (31). In the middle of the front sides of the two L-shaped positioning rods (31), positioning blocks (32) are fixedly connected. Both of the two positioning mechanisms (4) include positioning control mechanisms (41). On the front sides of the two positioning control mechanisms (41), baffles (42) are movably connected.

2. The manipulator for preform processing based on a three-axis platform according to claim 1, characterized in that: The positioning mechanism (4) includes two side plates (411). At the top and bottom of the side plate (411) close to the manipulator main body (2), connecting rods (412) are fixedly connected. On the rear sides of the outer sides of the two side plates (411), sliding grooves (416) are respectively opened. At the top and bottom of the inner rear sides of the two side plates (411), guide rail rod connection blocks (417) are fixedly connected. Inside the two groups of guide rail rod connection blocks (417), guide rail rods (418) are fixedly connected.

3. The manipulator for bottle preform processing based on a three-axis platform according to claim 2, wherein: At the top and bottom of the inner sides of the two side plates (411), cross plates (413) are respectively fixedly connected. In the middle of the tops of the two cross plates (413), hinge grooves (414) are opened. Inside the two hinge grooves (414), columnar cross bars (415) are fixedly connected. At the top and bottom of the middle parts of the inner sides of the two side plates (411), connecting plates (419) are fixedly connected. On the front sides of the two connecting plates (419), dust collectors (4120) are fixedly connected.

4. The manipulator for preform processing based on a three-axis platform according to claim 3, characterized in that: At the middle parts of the rear sides of the two connecting plates (419), diamond-shaped rotating plates (4110) are rotatably connected. On the two sides of the inner sides of the two diamond-shaped rotating plates (4110) away from each other, rotating rods (4111) are rotatably connected. On the sides of the two groups of rotating rods (4111) away from the diamond-shaped rotating plates (4110), expansion and contraction connecting plates (4112) are rotatably connected. At the top and bottom of the outer rear sides of the side plate (411) away from the manipulator main body (2), spring connection blocks (4119) are fixedly connected. On the inner sides of the two inner expansion and contraction connecting plates (4112), Z-shaped clamping plates (4117) are fixedly connected. On the left and right sides of the two Z-shaped clamping plates (4117), Z-shaped clamping plate sliders (4118) are fixedly connected. The outer walls of the two groups of Z-shaped clamping plate sliders (4118) are respectively slidably connected to the inner walls of the two sliding grooves (416). The inner walls of the two groups of Z-shaped clamping plate sliders (4118) are respectively slidably connected to the outer walls of the two guide rail rods (418).

5. A manipulator for bottle preform processing based on a three-axis platform according to claim 4, characterized in that: On the rear side of the middle part of the outer side of the side plate (411) on the side away from the manipulator main body (2), a chute column (4113) is fixedly connected. A push-pull block (4114) is slidably connected to the inner wall of the chute column (4113). A push-pull block connecting block (4116) is fixedly connected to the front side of the push-pull block (4114). A hydraulic push rod (4115) is fixedly connected to the side of the push-pull block connecting block (4116) close to the side plate (411). The side of the hydraulic push rod (4115) away from the push-pull block connecting block (4116) is fixedly connected to the outer side of the side plate (411).

6. The manipulator for preform processing based on a three-axis platform according to claim 1, characterized in that: The baffle (42) includes two baffle main bodies (421). On the side of the middle part of the rear sides of the two baffle main bodies (421) away from each other, a baffle expansion and contraction plate connecting rod (422) is fixedly connected. The rear sides of the two baffle main bodies (421) are respectively in contact with the front sides of the two dust collectors (4120). The rear sides of the two baffle expansion and contraction plate connecting rods (422) are both fixedly connected with baffle expansion and contraction plates (423). Baffle expansion and contraction plate sliders (424) are fixedly connected to the left and right sides of the two baffle expansion and contraction plates (423). The outer walls of the two groups of baffle expansion and contraction plate sliders (424) are respectively slidably connected to the inner walls of the two chutes (416). The inner walls of the two groups of baffle expansion and contraction plate sliders (424) are respectively slidably connected to the outer walls of the two guide rods (418).

7. The manipulator for preform processing based on a three-axis platform according to claim 6, characterized in that: The two baffle expansion and contraction plate sliders (424) extend to the outer side of the side plate (411) and are both fixedly connected with hinge rod connecting blocks (425). Two springs (426) are fixedly connected to the outer sides of the two hinge rod connecting blocks (425). The outer ends of the two springs (426) are respectively fixedly connected to the inner sides of the two spring connecting blocks (4119).

8. The manipulator for preform processing based on a three-axis platform according to claim 7, characterized in that: Two double-direction hinge rods (427) are rotatably connected to the inner sides of the two hinge rod connecting blocks (425). The sides of the two double-direction hinge rods (427) away from the hinge rod connecting blocks (425) are respectively rotatably connected to the top and bottom of the push-pull block (4114).

9. The manipulator for preform processing based on a three-axis platform according to claim 8, wherein: The inner sides of the two baffle expansion and contraction plates (423) are respectively fixedly connected to the outer sides of the two outer expansion and contraction connecting plates (4112).

10. The manipulator for preform processing based on a three-axis platform according to claim 1, wherein: The laser marking head (5) includes a vertical rod (51). The bottom of the vertical rod (51) is fixedly connected to the middle part of the top of the top baffle expansion and contraction plate (423). The top of the vertical rod (51) is rotatably connected to a double-direction hinge block (52). The top of the double-direction hinge block (52) is rotatably connected to a Z-shaped rotating rod (53). The front side of the inner wall of the bottom of the Z-shaped rotating rod (53) is rotatably connected to the outer wall of a columnar cross bar (415). The front side of the top of the Z-shaped rotating rod (53) is fixedly connected with a positioning laser head (54). A protective chamber (55) is arranged on the outer wall of the Z-shaped rotating rod (53). The bottom of the protective chamber (55) is fixedly connected to the middle part of the top cross plate (413).

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