Bottle blank material conveying and spacing device
By combining straight and oblique conveying components and utilizing the design of shifting columns and clamping plates, the problems of collision and inconvenience in picking up preforms during the conveying process are solved, achieving stable conveying and efficient picking up of preforms with large expansion volumes.
Patent Information
- Application Number
- CN202422157655.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-09-04
AI Technical Summary
Existing segmented conveyor devices are prone to collisions when dealing with preforms with large expansion volumes, and cannot retract to the heater position, affecting the material handling efficiency of the robotic arm.
A bottle preform material conveying and spacing device, including straight and oblique conveying components, is adopted. The spacing is adjusted by sliding the displacement column in the guide groove. Combined with the movement of the clamping plate, the bottle preform is switched from the heater to the blowing position, and the spacing is shortened after blowing for material picking.
It effectively adjusts the preform spacing to accommodate larger expansion volumes, avoids collisions, and does not affect the normal operation of the heater and blowing position, thereby improving the material handling efficiency of the robotic arm.
Smart Images
Figure CN223619629U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bottle preform material conveying technology, specifically to a bottle preform material conveying and spacing device. Background Technology
[0002] Blow molding machines are commonly used equipment in the production of hollow plastic containers. During production, plastic raw materials are first injection molded into preforms. These preforms are then placed in a heater to soften them before being conveyed to a blow molding die for blow molding. The preforms are typically spaced relatively close together in the heater, with heating concentrated in the center area to ensure even heating. During the blow molding process, the preforms expand in volume. To prevent collisions with adjacent preforms, the spacing between them in the blowing area needs to be adjusted, primarily by increasing the distance between multiple preforms. After blowing is complete, it's best to further reduce the spacing between the preforms to facilitate handling by a robotic arm.
[0003] To achieve the spacing between preforms, a spacing conveyor is generally used to switch the preforms from the heater position to the blowing position. However, in existing spacing conveyors, although the spacing between each preform can be changed according to the conveying direction, it is often only achieved by the tilt angle of the guide groove. Therefore, the adjustable range is small. When conveying preforms with large expansion volumes, it is still easy for the preforms to come into contact and collide with each other after blowing. On the other hand, after the spacing conveyor conveys the preforms to the blowing position to complete the blowing, it cannot return to the heater position, resulting in a large spacing between the preforms, which is not conducive to the robot arm picking up the preforms at that position.
[0004] Therefore, it is necessary to invent a preform material conveying and separating device to solve the above problems. Utility Model Content
[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a preform material conveying and spacing device. This solves the problem that existing technologies often rely solely on the tilt angle of the guide groove, resulting in a limited adjustment range. When conveying preforms with large expansion volumes, preforms are prone to contacting and colliding with each other after blowing. Furthermore, after conveying the preforms to the blowing position and completing the blowing process, the spacing device cannot return to the heater position, leading to a large distance between the preforms and making it difficult for the robotic arm to pick up the preforms at that position.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A bottle preform material conveying and spacing device includes two side frame plates in symmetrical positions, a straight conveying component and two oblique conveying components located between the two side frame plates and slidable along the length of the side frame plates, and the two oblique conveying components are located on both sides of the straight conveying component. The straight conveying component includes a straight spacing plate, a straight guide groove opened in the center of the straight spacing plate, and a placement component for placing bottle preforms that can slide along the straight guide groove. The oblique conveying component includes an oblique spacing plate, an oblique guide groove opened in the oblique spacing plate, and a placement component for placing bottle preforms that can slide along the oblique guide groove. The oblique guide groove is furthest from the straight guide groove in the middle, and the two sides gradually move closer to the straight guide groove. The bottom of each of the placement components is equipped with a displacement column that penetrates the straight conveying component or the oblique conveying component. The two side frame plates are equipped with frame plates that slide laterally left and right.
[0008] When the frame plate slides laterally back and forth between the two side frame plates, the multiple displacement columns can slide laterally within the frame plate.
[0009] As a preferred embodiment of the present invention, the placement component includes a sliding plate and a placement cylinder that can be used to hold the head of the preform, and the displacement column is detachably installed at the bottom of the placement cylinder.
[0010] As a preferred embodiment of this utility model, limit grooves are provided at symmetrical positions centered on the straight guide groove at the top of the straight dividing plate, and limit grooves are also provided at symmetrical positions centered on the oblique guide groove at the top of the oblique dividing plate. Guide strips that can slide along the limit grooves are connected to both sides of the bottom end of the slide plate that slides along the straight dividing plate, and guide rotating posts that can slide along the limit grooves are rotatably connected to both sides of the bottom end of the slide plate that slides along the oblique dividing plate.
[0011] As a preferred embodiment of this utility model, a connecting plate is detachably connected between both ends of the two side frame plates, and a guide rod is connected at a symmetrical position between the two connecting plates. The straight dividing plate and the oblique dividing plate are slidably sleeved on the guide rod.
[0012] As a preferred embodiment of this utility model, a transverse groove is provided in the side frame plate along its length direction. The ends of the straight and oblique spacing plates are connected to movable plates that can slide along the transverse groove. The other end of the movable plate is connected to a positioning stud. The positioning stud passes through the transverse groove and extends to the outside of the side frame plate. The portion of the positioning stud located outside the side frame plate is threaded with a nut that can lock the movable plate in the position of the transverse groove.
[0013] As a preferred embodiment of this utility model, mounting brackets are installed on both sides of the bottom end of the two side frame plates. A screw is rotatably arranged between the two mounting brackets on one side. A rotating shaft that can rotatably pass through the mounting bracket is installed at both ends of the screw. A rotating component is detachably installed on the edge of one of the side frame plates through a mounting seat. The output end of the rotating component is detachably connected to one of the rotating shafts. A sliding seat is provided at both ends of the frame plate. One of the sliding seats is threaded onto the screw.
[0014] As a preferred embodiment of this utility model, a crossbar is provided between the two mounting brackets on the other side, and a rotating shaft that can rotatably pass through the mounting bracket is installed at both ends of the crossbar, and the other slide is slidably sleeved on the crossbar.
[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:
[0016] In this invention, during the spacing and conveying process, the shifting column slides within the straight and oblique guide grooves, thereby changing the spacing between multiple placement components. This facilitates the switching of the placement components from the heater position to the blowing position for the preform. Furthermore, by changing the spacing between the oblique and straight spacing plates, the spacing between the straight and oblique guide grooves is further adjusted, thus expanding the adjustment range of the spacing between the straight and oblique guide grooves to accommodate preforms with large expansion coefficients. Additionally, as the clamping plate moves from one side to the center, it is driven... The moving displacement column moves synchronously, thereby moving multiple placement components from the heater position at the edge to the blowing position in the middle. At this time, the spacing between the multiple placement components is the largest, which is most suitable for blowing processing. After blowing is completed, the frame plate moves further from the middle to the other side, so that the multiple placement components slide further along the straight guide groove and the oblique guide groove to shorten the spacing between them. When it moves to the other side, the spacing between the multiple placement components is the smallest. At this time, it is most convenient for the robot to pick up the preform without retraction and without affecting the normal operation of the heater position and the blowing position. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the front view of the present invention;
[0019] Figure 3 This is a schematic diagram of the planar bottom view structure of this utility model.
[0020] Explanation of reference numerals in the attached figures:
[0021] 1. Side frame plate; 2. Connecting plate; 3. Straight dividing plate; 4. Angled dividing plate; 5. Straight guide groove; 6. Angled guide groove; 7. Displacement column; 8. Frame plate; 9. Slide plate; 10. Placement sleeve; 11. Limiting groove; 12. Guide slide bar; 13. Guide rotating column; 14. Horizontal groove; 15. Movable plate; 16. Positioning stud; 17. Nut; 18. Screw; 19. Mounting bracket; 20. Rotating shaft; 21. Rotating component; 22. Mounting base; 23. Guide rod; 24. Slide block; 25. Crossbar. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.
[0023] This utility model provides, for example Figure 1-3 The device for conveying and separating bottle preforms includes two side frame plates 1 in symmetrical positions, a straight conveying component and two oblique conveying components located between the two side frame plates 1 and slidable along the length of the side frame plates 1. The two oblique conveying components are located on both sides of the straight conveying component. The straight conveying component includes a straight dividing plate 3, a straight guide groove 5 opened at the center of the straight dividing plate 3, and a placement component for placing bottle preforms that can slide along the straight guide groove 5. The oblique conveying component includes an oblique dividing plate 4, an oblique guide groove 6 opened in the oblique dividing plate 4, and a placement component for placing bottle preforms that can slide along the oblique guide groove 6. The oblique guide groove 6 is furthest from the straight guide groove 5 in the middle, and the two sides gradually move closer to the straight guide groove 5. The bottom of the multiple placement components is equipped with a shifting column 7 that penetrates the straight conveying component or the oblique conveying component. The two side frame plates 1 are equipped with a frame plate 8 that slides horizontally back and forth. The frame plate 8 has a groove for the shifting column 7 to slide.
[0024] When the frame plate 8 slides laterally back and forth between the two side frame plates 1, multiple displacement columns 7 can slide laterally within the frame plate 8.
[0025] The placement assembly includes a slide plate 9 and a placement cylinder 10 for securing the preform head. The shifting post 7 is detachably installed at the bottom of the placement cylinder 10. The slide plate 9 can increase the contact area between the placement assembly and the straight dividing plate 3 or the inclined dividing plate 4, thereby improving sliding stability.
[0026] Limiting grooves 11 are provided at symmetrical positions centered on the straight guide groove 5 at the top of the straight dividing plate 3. Limiting grooves 11 are also provided at symmetrical positions centered on the oblique guide groove 6 at the top of the oblique dividing plate 4. Guide strips 12 that can slide along the limiting grooves 11 are connected to both sides of the bottom end of the slide plate 9 that slides along the straight dividing plate 3. Guide rotating columns 13 that can slide along the limiting grooves 11 are rotatably connected to both sides of the bottom end of the slide plate 9 that slide along the limiting grooves 11. The existence of the limiting grooves 11 can further improve the sliding stability of the slide plate 9.
[0027] Both ends of the two side frame plates 1 are detachably connected to a connecting plate 2, and guide rods 23 are connected at symmetrical positions between the two connecting plates 2. The straight dividing plate 3 and the oblique dividing plate 4 are slidably sleeved on the guide rods 23. The presence of the guide rods 23 can limit the lateral sliding of the straight dividing plate 3 and the oblique dividing plate 4, and prevent the straight dividing plate 3 or the oblique dividing plate 4 from rotating and deviating.
[0028] A transverse groove 14 is provided in the side frame plate 1 along its length. The ends of the straight spacing plate 3 and the oblique spacing plate 4 are connected to movable plates 15 that can slide along the transverse groove 14. The other end of the movable plate 15 is connected to a positioning stud 16. The positioning stud 16 passes through the transverse groove 14 and extends to the outside of the side frame plate 1. The part of the positioning stud 16 outside the side frame plate 1 is threaded with a nut 17 that can lock the movable plate 15 in the position of the transverse groove 14. By changing the position of the movable plate 15 in the transverse groove 14, the distance between the straight spacing plate 3 and the oblique spacing plate 4 is changed, that is, the distance between the straight guide groove 5 and the oblique guide groove 6 is changed, and the position can be locked by the nut 17.
[0029] Two mounting brackets 19 are installed on both sides of the bottom end of the two side frame plates 1. A screw 18 is rotatably mounted between the two mounting brackets 19 on one side. A rotating shaft 20 that can rotatably pass through the mounting bracket 19 is installed at both ends of the screw 18. A rotating component 21 is detachably mounted on the side of one side frame plate 1 via a mounting base 22. The output end of the rotating component 21 is detachably connected to one of the rotating shafts 20. Both ends of the frame plate 8 are provided with slides 24. One slide 24 is threaded onto the screw 18. A crossbar is provided between the two mounting brackets 19 on the other side. The rod 25 and the crossbar 25 are both equipped with rotating shafts 20 that can rotatably pass through the mounting bracket 19. Another slide 24 is slidably sleeved on the crossbar 25. The screw 18 is rotated by the rotating component 21. Under the limitation that one slide 24 can only slide along the crossbar 25, the other slide 24 slides along the screw 18, which changes the position of the frame plate 8 between the two side frame plates 1. By driving the rotating component 21 to rotate forward or backward, the screw 18 is driven to rotate forward or backward, thereby realizing the reciprocating sliding of the frame plate 8 between the two side frame plates 1.
[0030] In this invention, during the spacing and conveying process, the shifting column 7 slides within the straight guide groove 5 and the oblique guide groove 6, thereby changing the spacing between multiple placement components. This facilitates the switching of the placement components from the heater position to the blowing position for the preform. Furthermore, by changing the spacing between the oblique spacing plate 4 and the straight spacing plate 3, the spacing between the straight guide groove 5 and the oblique guide groove 6 can be further adjusted, thus expanding the adjustment range of the spacing between the straight guide groove 5 and the oblique guide groove 6, adapting to the blowing of preforms with a large expansion coefficient. Additionally, during the movement of the clamping plate 8 from one side towards the center… By driving the displacement column 7 to move synchronously, multiple placement components are moved from the heater position at the edge to the blowing position in the middle. At this time, the distance between the multiple placement components is the largest, which is most suitable for blowing processing. After blowing is completed, the frame plate 8 moves further from the middle to the other side, so that the multiple placement components slide further along the straight guide groove 5 and the oblique guide groove 6 to shorten the distance between them. When it moves to the other side, the distance between the multiple placement components is the smallest. At this time, it is most convenient for the robot to pick up the preform. There is no need to retreat during the process, and it does not affect the normal operation of the heater position and the blowing position.
[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A preform material conveying and separating device, characterized in that: It includes two side frame plates (1) in symmetrical positions, a linear conveying assembly and two oblique conveying assemblies located between the two side frame plates (1) and slidable along the length of the side frame plates (1), and the two oblique conveying assemblies are located on both sides of the linear conveying assembly. The linear conveying assembly includes a linear dividing plate (3), a linear guide groove (5) opened at the center of the linear dividing plate (3), and a placement assembly that can slide along the linear guide groove (5) for placing bottle preforms. The oblique conveying assembly includes... Includes an inclined dividing plate (4), an inclined guide groove (6) opened in the inclined dividing plate (4), and a placement component that can slide along the inclined guide groove (6) and is used to place the preform. The center of the inclined guide groove (6) is furthest from the straight guide groove (5), and the two sides gradually approach the straight guide groove (5). The bottom of the multiple placement components is equipped with a shifting column (7) that penetrates the straight conveying component or the inclined conveying component. The two side frame plates (1) are equipped with a frame plate (8) that slides horizontally left and right. When the frame plate (8) slides laterally back and forth between the two side frame plates (1), the multiple displacement columns (7) can slide laterally within the frame plate (8).
2. The bottle preform material conveying and separating device according to claim 1, characterized in that: The placement assembly includes a slide plate (9) and a placement cylinder (10) for securing the preform head, wherein the displacement column (7) is detachably mounted on the bottom of the placement cylinder (10).
3. The preform material conveying and separating device according to claim 2, characterized in that: Limiting grooves (11) are provided at the symmetrical positions of the top of the straight dividing plate (3) centered on the straight guide groove (5). Limiting grooves (11) are also provided at the symmetrical positions of the top of the oblique dividing plate (4) centered on the oblique guide groove (6). Guide strips (12) that can slide along the limiting grooves (11) are connected to both sides of the bottom end of the sliding plate (9) that slides along the straight dividing plate (3). Guide rotating columns (13) that can slide along the limiting grooves (11) are rotatably connected to both sides of the bottom end of the sliding plate (9) that slides along the oblique dividing plate (4).
4. The preform material conveying and separating device according to claim 1, characterized in that: A connecting plate (2) is detachably connected between the two ends of the two side frame plates (1), and a guide rod (23) is connected at the symmetrical position between the two connecting plates (2). The straight spacing plate (3) and the oblique spacing plate (4) are slidably sleeved on the guide rod (23).
5. The preform material conveying and separating device according to claim 1, characterized in that: A transverse groove (14) is provided in the side frame plate (1) along its length direction. The ends of the straight spacing plate (3) and the oblique spacing plate (4) are connected to a movable plate (15) that can slide along the transverse groove (14). The other end of the movable plate (15) is connected to a positioning stud (16). The positioning stud (16) passes through the transverse groove (14) and extends to the outside of the side frame plate (1). The part of the positioning stud (16) outside the side frame plate (1) is threaded with a nut (17) that can lock the movable plate (15) in the position of the transverse groove (14).
6. The preform material conveying and separating device according to claim 1, characterized in that: Both sides of the bottom end of the two side frame plates (1) are equipped with mounting brackets (19). A screw (18) is rotatably arranged between the two mounting brackets (19) on one side. Both ends of the screw (18) are equipped with rotating shafts (20) that can rotatably pass through the mounting brackets (19). A rotating component (21) is detachably installed on the side of one of the side frame plates (1) through a mounting seat (22). The output end of the rotating component (21) is detachably connected to one of the rotating shafts (20). Both ends of the frame plate (8) are provided with slides (24). One of the slides (24) is threaded onto the screw (18).
7. The bottle preform material conveying and separating device according to claim 6, characterized in that: A crossbar (25) is provided between the two mounting brackets (19) on the other side. Both ends of the crossbar (25) are equipped with a rotating shaft (20) that can rotatably pass through the mounting bracket (19). The other slide (24) is slidably sleeved on the crossbar (25).