Injection molding transfer apparatus

Abstract

The present application belongs to the field of injection molding transmission, and particularly relates to an injection molding transmission device, which comprises a support, a conveying mechanism, an injection molding device, a cutting mechanism and a hot-press packaging device, wherein the support is sequentially provided with the injection molding device for injection molding three pairs of half-ring plastic cylinders as telescopic cylinder components, the cutting mechanism for cutting and separating the connecting strips formed by the three pairs of six plastic cylinders in the injection molding process, and the hot-press packaging device for plastic packaging the six plastic cylinders after being cut and separated. The cutting mechanism in the present application can automatically adjust the distance between any two adjacent sliders and keep the laser cutter between the two sliders in the middle position according to the actual distance of the six half-ring plastic cylinders injection molded by the injection molding device, so that each laser cutter can be opposite to the connecting strip between the corresponding two plastic cylinders and effectively cut and separate the connecting strip.

Description

Technical Field

[0001] This invention belongs to the field of injection molding transfer, and particularly relates to an injection molding transfer device. Background Technology

[0002] Plastic injection molding includes processes such as casting, demolding, transfer, cutting, screening, and packaging. These processes utilize mold casting equipment, demolding equipment, transfer and cutting equipment, screening equipment, and packaging equipment, respectively. The large number and variety of equipment involved result in high costs for plastic injection molding.

[0003] This invention designs a transmission device and a cutting device to sort molded products and to encapsulate and package the molded products without screening after sorting and cutting, which has the effect of optimizing the injection molding process and reducing injection molding costs. Summary of the Invention

[0004] To address the aforementioned deficiencies in the prior art, this invention discloses an injection molding transfer device, which is implemented using the following technical solution.

[0005] An injection molding conveying device includes a support frame, a conveying mechanism, an injection molding machine, a cutting mechanism, and a thermoforming packaging machine. The support frame is sequentially equipped with an injection molding machine for injection molding three pairs of semi-ring plastic cylinders (serving as telescopic cylinder components), a cutting mechanism for cutting and separating the connecting strips formed during the injection molding process of the three pairs of six plastic cylinders, and a thermoforming packaging machine for sealing the six separated plastic cylinders. The support frame also includes a conveying mechanism that transports the three pairs of six sequentially connected semi-ring plastic cylinders, demolded from the injection molding machine, in a transverse arrangement to the cutting mechanism for cutting and separation, and then transports the six separated plastic cylinders to the thermoforming packaging machine.

[0006] The cutting mechanism includes a housing, sliders, motor B, and laser cutters. Six sliders, each corresponding to a plastic cylinder demolded from the injection molding equipment, slide in a groove at the lower end of the housing in a direction perpendicular to the transmission motion of the conveying mechanism and are synchronously driven by motor B. A laser cutter is installed between any two adjacent sliders to cut and separate the corresponding two plastic cylinders. There is a structure between any two adjacent sliders such that the corresponding laser cutter is located in the center between them.

[0007] As a further improvement of this technology, the conveying mechanism includes a conveyor belt and a motor A. The two symmetrical conveyor belts mounted on the bracket form a herringbone shape in the initial section, causing the two parts of the three pairs of plastic cylinders demolded from the injection molding equipment to hang naturally to both sides, and form a horizontal conveying state at the end, causing the three pairs of six plastic cylinders to arrive at the cutting mechanism in a horizontally arranged manner; the two conveyor belts are synchronously driven by the motor A.

[0008] As a further improvement to this technology, the initial ends of the two horizontal sections of the conveyor belt are held by two drive rollers, and a gear A is installed on the roller shaft of each drive roller. The two gears A mesh with each other; gear A meshes with gear B on the output shaft of motor A.

[0009] As a further improvement to this technology, racks A are installed on the sliders; the two racks A on the two middle sliders mesh with gear C installed on the rotating shaft A inside the housing; the two racks A on the two side sliders mesh with gear E on the rotating shaft A; and the two racks A on the remaining two sliders mesh with gear D on the rotating shaft A.

[0010] As a further improvement to this technology, the ratio of the pitch circle diameters of gear C and gear D is 1:3, and the ratio of the pitch circle diameters of gear D and gear E is 1:3.

[0011] As a further improvement to this technology, the gear F mounted on the rotating shaft A meshes with the gear G mounted on the output shaft of the motor B.

[0012] As a further improvement to this technology, the rack B installed on the slider is nested and slidably connected to the rack B installed on the adjacent slider. The sliding sleeve is equipped with a gear H that meshes with the two racks B. A laser cutter is installed at the lower end of each sliding sleeve to ensure that the laser cutter between any two adjacent sliders is always located in the center position between the two sliders after the two sliders generate relative movement.

[0013] Compared to traditional injection molding conveying equipment, the structural features of the conveying mechanism in this invention allow the six plastic cylinders demolded from the injection molding equipment to move laterally in a sorted manner to the cutting mechanism for cutting and separation. This invention eliminates the need to screen the cut and separated plastic cylinders before sealing and packaging them, thereby optimizing the injection molding process, reducing the number of injection molding-related equipment, and lowering injection molding costs.

[0014] Furthermore, the cutting mechanism in this invention can automatically adjust the spacing between any two adjacent sliders according to the actual spacing of the six semi-ring plastic cylinders injected by the injection molding equipment, and keep the laser cutter between any two adjacent sliders in a centered position, so that each laser cutter can be aligned with the connecting strip between the two plastic cylinders and effectively cut and separate them. This invention has a simple structure and good performance. Attached Figure Description

[0015] Figure 1 These are schematic diagrams from two perspectives of the present invention.

[0016] Figure 2 This is a schematic cross-sectional view of the entire invention.

[0017] Figure 3This is a cross-sectional schematic diagram of the cutting mechanism and the molded plastic cylinder from two different perspectives.

[0018] Figure 4 This is a partial cross-sectional schematic diagram of the cutting mechanism and the molded plastic cylinder working together.

[0019] Figure 5 It is a cross-sectional diagram showing the cooperation between the cutting mechanism, conveyor belt, plastic tube and thermoforming packaging equipment.

[0020] Figure 6 This is a schematic diagram of the shell cross-section.

[0021] Figure 7 This is a schematic diagram showing the bracket and the two conveyor belts working together.

[0022] Figure 8 This is a schematic diagram of the cross-section of the conveyor belt.

[0023] Figure 9 These are cross-sectional schematic diagrams of two transmission belt drive structures.

[0024] Figure 10 This is a schematic diagram of a molded plastic cylinder.

[0025] The labels in the diagram are as follows: 1. Support frame; 2. Conveyor belt; 3. Drive roller; 4. Roller shaft; 5. Gear A; 6. Gear B; 7. Motor A; 8. Cutting mechanism; 9. Housing; 10. Slide groove; 11. Slider; 12. Rack A; 13. Gear C; 14. Gear D; 15. Gear E; 16. Shaft A; 17. Gear F; 18. Gear G; 19. Motor B; 20. Rack B; 21. Sliding sleeve; 22. Gear H; 23. Laser cutter; 24. Plastic cylinder; 25. Connecting strip; 26. Plastic sheet; 27. Hot-press packaging equipment; 28. Collection box; 29. ​​Injection molding equipment; 30. Conveying mechanism. Detailed Implementation

[0026] The accompanying drawings are schematic diagrams illustrating embodiments of the present invention to facilitate understanding of the structural operating principle. Specific product structures and dimensions can be determined based on the usage environment and conventional technologies.

[0027] like Figure 1 , 2 As shown, it includes a support frame 1, a conveying mechanism 30, an injection molding machine 29, a cutting mechanism 8, and a thermoforming packaging machine 27, wherein, as... Figure 1 , 2 As shown in Figure 10, the bracket 1 is sequentially equipped with an injection molding machine 29 for injection molding three pairs of semi-ring plastic cylinders 24 as telescopic cylinder components, a cutting mechanism 8 for cutting and separating the connecting strips 25 formed during the injection molding process of the three pairs of six plastic cylinders 24, and a heat-sealing packaging machine 27 for sealing the six plastic cylinders 24 after cutting and separating. Figure 2, 7 As shown in Figure 8, the support 1 is also equipped with a conveying mechanism 30 that transports three pairs of six sequentially connected semi-ring plastic cylinders 24, which are demolded from the injection molding equipment 29, to the cutting mechanism 8 in a horizontal sorting manner for cutting and separation, and then transports the six plastic cylinders 24 that have been cut and separated to the thermo-press packaging equipment 27.

[0028] like Figure 2 , 3 As shown, the cutting mechanism 8 includes a housing 9, a slider 11, a motor B19, and a laser cutter 23, wherein... Figure 3 , 5 As shown in Figure 6, six sliders 11, corresponding one-to-one with the plastic cylinders 24 demolded from the injection molding equipment 29, are slidable in the groove 10 at the lower end of the housing 9 along a direction perpendicular to the transmission motion of the conveying mechanism 30, and are synchronously driven by the motor B19; Figure 3 , 4 As shown, a laser cutter 23 for cutting and separating the corresponding two plastic cylinders 24 is installed between any two adjacent sliders 11; and there is a structure between any two adjacent sliders 11 such that the corresponding laser cutter 23 is located in the center between them.

[0029] like Figure 7 , 8 As shown in Figures 9 and 1, the conveying mechanism 30 includes a conveyor belt 2 and a motor A7, wherein... Figure 7 , 8 As shown, the two symmetrical conveyor belts 2 installed on the bracket 1 form a herringbone shape in the initial section, causing the two parts of the three pairs of plastic cylinders 24 demolded from the injection molding equipment 29 to hang naturally to both sides, and in the end, they form a horizontal conveying state in which the three pairs of six plastic cylinders 24 are arranged laterally to reach the cutting mechanism 8 below; as shown Figure 9 As shown, the two conveyor belts 2 are synchronously driven by motor A7.

[0030] like Figure 9 As shown, the initial ends of the two horizontal sections of the conveyor belt 2 are held by two drive rollers 3. Each drive roller 3 is mounted on a roller shaft 4 with a gear A5, and the two gears A5 mesh with each other. The gear A5 meshes with the gear B6 on the output shaft of the motor A7.

[0031] like Figure 3 , 5 As shown, racks A12 are mounted on the sliders 11; the two racks A12 on the two middle sliders 11 mesh with gears C13 mounted on the rotating shaft A16 inside the housing 9; the two racks A12 on the two sliders 11 on both sides mesh with gears E15 on the rotating shaft A16; the two racks A12 on the remaining two sliders 11 mesh with gears D14 on the rotating shaft A16.

[0032] like Figure 3 , 5 As shown, the pitch circle diameter ratio of gear C13 to gear D14 is 1:3, and the pitch circle diameter ratio of gear D14 to gear E15 is 1:3.

[0033] like Figure 5 As shown, the gear F17 mounted on the rotating shaft A16 meshes with the gear G18 mounted on the output shaft of the motor B19.

[0034] like Figure 4 As shown, the rack B20 installed on the slider 11 is nested and slidably connected to the rack B20 installed on the adjacent slider 11 with a sliding sleeve 21. The sliding sleeve 21 is equipped with a gear H22 that meshes with the two racks B20. A laser cutter 23 is installed at the lower end of each sliding sleeve 21 to ensure that the laser cutter 23 between any two adjacent sliders 11 is always located in the center position between the two sliders 11 after the two sliders 11 generate relative movement.

[0035] The injection molding equipment 29 and the hot-press packaging equipment 27 in this invention both adopt existing technologies.

[0036] The workflow of the present invention is as follows: When the present invention is required to perform injection molding, conveying, cutting and packaging of six semi-circular plastic cylinders 24 as telescopic cylinder components, the motor A7 is started first. The motor A7 drives the two roller shafts 4 to rotate through the gear B6 and two gears A5. The two roller shafts 4 drive the two drive rollers 3 to drive the two conveyor belts 2 to run.

[0037] Then, molten plastic is injected into the mold cavity of the injection molding equipment, and the molten plastic is finally formed into six semi-ring plastic cylinders 24 connected in sequence by plastic connecting strips 25.

[0038] After the six plastic cylinders 24 in the mold cavity have cooled, the injection molding equipment automatically demolds the six semi-circular plastic cylinders 24.

[0039] The six molded plastic cylinders 24, after being demolded, fall onto the herringbone-shaped initial sections of the two conveyor belts 2 below under their own weight. The three pairs of plastic cylinders 24 that reach the conveyor belts 2 hang down from the middle connecting strip 25 to both sides under the action of gravity on both sides and are located in a vertical plane perpendicular to the direction of movement of the conveyor belts 2.

[0040] As the two conveyor belts 2 operate, three pairs of six plastic cylinders 24 move from the herringbone initial section of the two conveyor belts 2 to the horizontal section of the two conveyor belts 2. The three pairs of six plastic cylinders 24 that reach the horizontal section of the two conveyor belts 2 are continued to be transported by the conveyor belts 2 to the bottom of the cutting mechanism 8. Due to the action of the herringbone initial section of the two conveyor belts 2, the three pairs of six plastic cylinders 24 are connected to each other and finally located in the center of the horizontal section of the conveyor belt 2. The five connecting strips 25 of the three pairs of plastic cylinders 24 correspond one-to-one with the five laser cutters 23 on the cutting mechanism 8.

[0041] When the six horizontally arranged plastic cylinders 24 reach below the cutting mechanism 8, the sensors on the five laser cutters 23 identify the connecting strip 25 between the corresponding two plastic cylinders 24 and activate the motor B19 to quickly adjust the distance between any two adjacent sliders 11. The motor B19 drives gears C13, D14, and E15 to rotate synchronously via gears G18, F17, and shaft A16. Gears C13, D14, and E15, respectively, drive the corresponding two sliders 11 to slide synchronously towards or away from each other via two racks A12. Simultaneously, as the distance between any two adjacent sliders 11 is adjusted, the two racks B20 on the adjacent sliders 11 drive the corresponding sliding sleeves 21 on which the laser cutters 23 are mounted via gears H22, ensuring they remain centered between the two sliders 11. This guarantees that the laser cutter 23 can cut and separate the connecting strip 25 from the center, resulting in a better cutting effect.

[0042] After the spacing between the sliders 11 is quickly adjusted, the cutting mechanism 8 will quickly cut the five connecting strips 25 on the three pairs of six plastic tubes 24, thereby breaking the connection between the six plastic tubes 24.

[0043] When the plastic cylinder 24 reaches the horizontal section of the conveyor belt 2, a plastic sheet 26 is placed on top of the heat-sealing packaging equipment 27.

[0044] Six disconnected semi-circular plastic cylinders 24 fall laterally onto the plastic sheet 26 as the horizontal section of the conveyor belt 2 continues to transport them, and then enter the heat-sealing packaging equipment 27 along with the plastic sheet 26 for sealing and packaging.

[0045] The six plastic tubes 24, which are sealed in the heat-sealing packaging equipment 27, fall from the opened heat-sealing packaging equipment 27 into the collection box 28 below.

[0046] In summary, the beneficial effects of the present invention are as follows: the structural features of the conveying mechanism 30 in the present invention enable the six plastic cylinders 24 demolded from the injection molding equipment to move in a horizontally arranged manner to the cutting mechanism 8 for cutting and separation. The present invention can seal and package the plastic cylinders 24 after cutting and separation without screening them, thereby optimizing the injection molding process, reducing the number of injection molding-related equipment and reducing injection molding costs.

[0047] In addition, the cutting mechanism 8 in this invention can automatically adjust the spacing between any two adjacent sliders 11 according to the actual spacing of the six semi-circular plastic cylinders 24 injected by the injection molding equipment, and keep the laser cutter 23 between any two adjacent sliders 11 in a central position, so that each laser cutter 23 can be opposite to the connecting strip 25 between the two plastic cylinders 24 and effectively cut and separate them.

Claims

1. An injection molding transfer device, characterized in that: It includes a support frame, a conveying mechanism, an injection molding equipment, a cutting mechanism, and a thermoforming packaging equipment. The support frame is equipped with, in sequence, an injection molding equipment for injection molding three pairs of semi-ring plastic cylinders used as telescopic cylinder components, a cutting mechanism for cutting and separating the connecting strips formed during the injection molding process of the three pairs of six plastic cylinders, and a thermoforming packaging equipment for sealing the six plastic cylinders after they have been cut and separated. The support frame is also equipped with a conveying mechanism that transports the three pairs of six sequentially connected semi-ring plastic cylinders that have been demolded from the injection molding equipment to the cutting mechanism in a horizontal sorting manner, and then transports the six plastic cylinders that have been cut and separated to the thermoforming packaging equipment. The cutting mechanism includes a housing, sliders, motor B, and laser cutters. Six sliders, each corresponding to a plastic cylinder demolded from the injection molding equipment, are slidably mounted in a groove at the lower end of the housing in a direction perpendicular to the transmission motion of the conveying mechanism and are synchronously driven by motor B. A laser cutter is installed between any two adjacent sliders to cut and separate the corresponding two plastic cylinders. There is a structure between any two adjacent sliders such that the corresponding laser cutter is located in the center between them. The conveying mechanism includes a conveyor belt and a motor A. The two symmetrical conveyor belts mounted on the bracket form a herringbone shape in the initial section, causing the two parts of the three pairs of plastic cylinders demolded from the injection molding equipment to hang naturally to both sides. At the end, they form a horizontal conveying state in which the three pairs of six plastic cylinders are arranged in a transverse order to reach the cutting mechanism below. The two conveyor belts are synchronously driven by the motor A. The sliders are equipped with racks A; the two racks A on the two middle sliders mesh with gears C installed on the rotating shaft A inside the housing; the two racks A on the two side sliders mesh with gears E on the rotating shaft A; the two racks A on the remaining two sliders mesh with gears D on the rotating shaft A. The slider is also equipped with a rack B, and the rack B installed on the slider and the rack B installed on the adjacent slider are nested and slidably connected by a sliding sleeve. The sliding sleeve is equipped with a gear H that meshes with the two racks B. A laser cutter is installed at the lower end of each sliding sleeve. Gears C, D, and E respectively drive two corresponding sliders to slide synchronously towards or away from each other via two racks A; As the distance between any two adjacent sliders is adjusted, the two racks B on the two adjacent sliders drive the corresponding sliding sleeves equipped with laser cutters to move through the corresponding gears H and always remain in the center position between the two sliders.

2. The injection molding transfer device according to claim 1, characterized in that: The initial ends of the two horizontal sections of the conveyor belt are held by two drive rollers. Each drive roller is equipped with a gear A on its roller shaft, and the two gears A mesh with each other. Gear A meshes with gear B on the output shaft of motor A.

3. The injection molding transfer device according to claim 1, characterized in that: The ratio of the pitch circle diameters of gear C and gear D is 1:3, and the ratio of the pitch circle diameters of gear D and gear E is 1:

3.

4. The injection molding transfer device according to claim 1, characterized in that: The gear F mounted on the rotating shaft A meshes with the gear G mounted on the output shaft of the motor B.

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