Plastic bottle blank humidity conditioning and forming processing apparatus
By designing a plastic preform humidity control and molding equipment with a drying mechanism, a mixing and dispersing mechanism, and a feeding mechanism, the problem of uneven drying caused by plastic particle agglomeration was solved, and the performance of the plastic preform molding equipment was improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU KERUI PLASTIC CO LTD
- Filing Date
- 2025-09-08
- Publication Date
- 2026-08-04
AI Technical Summary
When using existing plastic preform humidity control and molding equipment, plastic particles tend to clump together, leading to reduced drying effect and efficiency, which in turn affects the performance of the plastic preform molding equipment.
A device for regulating and molding the humidity of plastic preforms was designed, comprising a drying mechanism, a mixing and dispersing mechanism, and a feeding mechanism. The mixing and dispersing mechanism mixes and disperses the plastic particles, while the feeding mechanism ensures continuous and uniform feeding, avoiding clumping and improving the drying effect.
It improves the drying effect and uniformity of plastic granules, enhances the performance of plastic preform forming equipment, ensures uniform conveying and mixing of plastic granules in the drying chamber, and avoids uneven drying caused by clumping.
Smart Images
Figure CN224588359U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic preform technology, specifically to processing equipment for humidity control and molding of plastic preforms. Background Technology
[0002] Plastic preforms are key intermediate semi-finished products in the plastic bottle production process. They are typically made from polymer materials through injection molding and are usually tubular structures with one open end and one closed end, possessing specific wall thicknesses and dimensional precision. Their core function is to serve as the base for subsequent blow molding processes. During blow molding, the preform is heated to a softened state and then inflated within a mold using high-pressure airflow, ultimately adhering to the mold's inner wall to form various shapes of plastic bottles.
[0003] Plastic preform molding equipment typically uses an injection molding machine as its core. It heats the polymer material to a melting state and then injects the melt at high speed into a customized preform mold cavity through a high-pressure injection system. Subsequently, the melt is rapidly cooled by the mold's cooling water circuit, allowing it to solidify and set within the cavity. This results in a preform semi-finished product that is open at one end and closed at the other, meeting dimensional accuracy and physical property standards. Usually, before injection molding, the polymer material is dried using drying equipment to reduce its moisture content.
[0004] When using existing plastic preform humidity control and molding equipment, drying equipment is usually used to dry the plastic granules. However, due to the presence of a certain amount of moisture in the plastic granules, clumping is likely to occur. This makes it difficult for the clumped plastic granules to be dried evenly in the drying equipment, resulting in a reduction in the drying effect and efficiency of the plastic granules, and further reducing the effectiveness of the plastic preform molding equipment. Utility Model Content
[0005] The purpose of this invention is to provide a processing device for adjusting the humidity and molding of plastic bottle preforms.
[0006] To achieve this objective, the present invention adopts the following technical solution: This equipment provides processing equipment for regulating and molding the humidity of plastic preforms, including a base, an injection molding machine, a feeding mechanism, a drying mechanism, and a mixing and dispersing mechanism. The injection molding machine is fixedly installed on the base, and the drying mechanism is fixedly installed on the base via a support frame. The drying mechanism is used to dry plastic granules, the feeding mechanism is used to feed the drying mechanism, and the mixing and dispersing mechanism is used to mix and disperse the plastic granules in the drying mechanism. The mixing and dispersing mechanism includes two sets of fixed rods and a material dispersing plate. Both sets of fixed rods are rotatably mounted on the drying mechanism via gear rings, and the material dispersing plate is fixedly mounted on one set of fixed rods via mounting rods. The gear rings drive the fixed rods to rotate, which in turn drives the material dispersing plate to rotate, thereby dispersing the clumps of plastic granules in the drying chamber.
[0007] Furthermore, the mixing and dispersing mechanism also includes a support rod and a mixing blade. The support rod is fixedly installed on another set of fixed rods, and the mixing blade is rotatably installed on the support rod via a rotating column.
[0008] Furthermore, the drying mechanism includes a drying chamber, a rotating shaft, and a stirring rod. The drying chamber is fixedly installed on the support frame and is connected to the input end of the injection molding machine. The rotating shaft is rotatably installed on the drying chamber, and the stirring rod is fixedly installed on the rotating shaft.
[0009] Furthermore, the drying mechanism also includes gear one and gear two. Gear one is rotatably mounted on the drying chamber via a drive rod and meshes with a gear ring. Gear two is fixedly mounted on the rotating shaft and meshes with gear one. Through the meshing action of gear two with gear one and the gear ring respectively, the rotating shaft and the fixed rod rotate in opposite directions, thereby achieving an alternating stirring and dispersing effect on the plastic particles.
[0010] Furthermore, the drying mechanism also includes a motor, which is fixedly mounted on the drying chamber, and the output shaft of the motor is fixedly connected to the drive rod.
[0011] Furthermore, the feeding mechanism includes a feeding hopper and a hinge plate. The feeding hopper is fixedly installed on the drying box, and a sliding groove is provided on the feeding hopper. The hinge plate is slidably installed on the sliding groove through a cylindrical block.
[0012] Furthermore, the feeding mechanism also includes a moving plate and a connecting rod. A guide groove is provided on the drying box, the moving plate is slidably installed on the guide groove, and the moving plate is hinged to the hinge plate. The connecting rod is fixedly installed on the moving plate and passes through the feeding hopper.
[0013] Furthermore, the feeding mechanism also includes a push-pull rod, which is fixedly mounted on the rotating shaft via a cylindrical rod, and the push-pull rod and the connecting rod are hinged together via a hinge rod. The rotation of the rotating shaft drives the push-pull rod to rotate, thereby causing the moving plate to move back and forth, resulting in a continuous opening and closing effect of the hinge plate, thus achieving a continuous and uniform feeding effect for the plastic granules.
[0014] The beneficial effects of this utility model are as follows: This processing equipment for regulating and molding the humidity of plastic preforms, through the setting of a drying mechanism and a stirring and dispersing mechanism, can stir and disperse plastic particles. At the same time, through the reverse motion between the rotating shaft and the fixed rod, the stirring and dispersing effect on the plastic particles can be further improved, thereby improving the performance of the plastic preform molding equipment. In addition, through the setting of a feeding mechanism, the plastic particles can be continuously and evenly transported into the drying chamber, avoiding the impact of adding too many plastic particles into the drying chamber at one time, thus further improving the drying effect of the plastic particles. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments of this utility model will be briefly introduced below.
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the main structure of the drying oven of this utility model; Figure 3 This is a cross-sectional view of the drying oven of this utility model; Figure 4 This is a schematic diagram of the main structure of the stirring and dispersing mechanism of this utility model; Figure 5 This is a schematic diagram of the main structure of the stirring blade of this utility model; Figure 6 This is a schematic diagram of the main structure of the rotating shaft of this utility model; Figure 7 For the present utility model Figure 3 Enlarged structural diagram of section A; Figure 8 This is a cross-sectional view of the feeding hopper of this utility model; Figure 9 This is a schematic diagram of the main structure of the hinge plate of this utility model; Figure 10 For the present utility model Figure 2 Enlarged structural diagram of section B.
[0017] In the diagram: 1. Base; 2. Injection molding machine; 3. Feeding mechanism; 31. Feeding hopper; 32. Hinge plate; 33. Moving plate; 34. Connecting rod; 35. Slide groove; 36. Guide groove; 37. Cylindrical rod; 38. Push-pull rod; 39. Cylindrical block; 310. Hinge rod; 4. Drying mechanism; 41. Drying box; 42. Motor; 43. Drive rod; 44. Gear 1; 45. Gear 2; 46. Rotating shaft; 47. Stirring rod; 5. Stirring and dispersing mechanism; 51. Gear ring; 52. Fixing rod; 53. Mounting rod; 54. Dispersing plate; 55. Support rod; 56. Rotating column; 57. Stirring blade; 6. Support frame. Detailed Implementation
[0018] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0019] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.
[0020] Reference Figures 1 to 3 The device shown is a processing equipment for adjusting and molding the humidity of plastic preforms. It includes a base 1, an injection molding machine 2, a feeding mechanism 3, a drying mechanism 4, and a stirring and dispersing mechanism 5. The injection molding machine 2 is fixedly installed on the base 1. The injection molding machine 2 is existing technology and is used to injection mold plastic preforms. The drying mechanism 4 is fixedly installed on the base 1 through a support frame 6. The drying mechanism 4 is used to dry plastic granules, thereby reducing the humidity in the plastic granules and improving the injection molding effect. The feeding mechanism 3 is used to feed the drying mechanism 4. The feeding mechanism 3 can achieve a continuous and uniform feeding effect of plastic granules, thereby improving the drying effect of the drying mechanism 4 on the plastic granules. The stirring and dispersing mechanism 5 is used to stir and disperse the plastic granules in the drying mechanism 4, thereby avoiding the formation of clumps in the plastic granules and further improving the drying effect of the plastic granules.
[0021] Reference Figure 3 and Figure 4 The mixing and dispersing mechanism 5 includes two sets of fixed rods 52 and a material dispersing plate 54. Both sets of fixed rods 52 are rotatably mounted on the drying mechanism 4 via toothed rings 51. The rotation of the toothed rings 51 can simultaneously drive the two sets of fixed rods 52 to rotate. The material dispersing plate 54 is fixedly mounted on one set of fixed rods 52 via mounting rods 53. The rotation of the set of fixed rods 52 can drive the mounting rods 53 to rotate, thereby driving the material dispersing plate 54 to rotate, which can then disperse the clumps of plastic particles in the drying chamber 41.
[0022] Reference Figure 4 and Figure 5 The mixing and dispersing mechanism 5 also includes a support rod 55 and a mixing blade 57. The support rod 55 is fixedly installed on another set of fixed rods 52. The rotation of the other set of fixed rods 52 can drive the support rod 55 to rotate. The mixing blade 57 is rotatably installed on the support rod 55 through a rotating column 56. The rotation of the support rod 55 can drive the mixing blade 57 to rotate, thereby improving the mixing effect on the plastic particles in the drying oven 41.
[0023] Reference Figure 3 and Figure 6 The drying mechanism 4 includes a drying chamber 41, a rotating shaft 46, and a stirring rod 47. The drying chamber 41 is fixedly installed on the support frame 6 and is connected to the input end of the injection molding machine 2. The drying chamber 41 is existing technology. The plastic granules in the drying chamber 41 are dried by heating. At the same time, the dried plastic granules can be added into the injection molding machine 2. The rotating shaft 46 is rotatably installed on the drying chamber 41, and the stirring rod 47 is fixedly installed on the rotating shaft 46. The rotation of the rotating shaft 46 can drive the stirring rod 47 to rotate, thereby stirring the plastic granules in the drying chamber 41 and improving the drying uniformity of the plastic granules.
[0024] Reference Figure 3 and Figure 7 The drying mechanism 4 also includes a first gear 44 and a second gear 45. The first gear 44 is rotatably mounted on the drying chamber 41 via a drive rod 43 and meshes with a gear ring 51. The rotation of the drive rod 43 drives the first gear 44 to rotate, which in turn drives the gear ring 51 to rotate. The second gear 45 is fixedly mounted on a rotating shaft 46 and meshes with the first gear 44. The rotation of the first gear 44 also drives the second gear 45 to rotate, which in turn drives the rotating shaft 46 to rotate. The drying mechanism 4 also includes a motor 42, which is fixedly mounted on the drying chamber 41. The output shaft of the motor 42 is fixedly connected to the drive rod 43. Starting the motor 42 drives the drive rod 43 to rotate.
[0025] Reference Figure 2 and Figure 8 The feeding mechanism 3 includes a feeding hopper 31 and a hinge plate 32. The feeding hopper 31 is fixedly installed on the drying box 41, and a sliding groove 35 is provided on the feeding hopper 31. The feeding hopper 31 is used to add plastic granules into the drying box 41. The hinge plate 32 is slidably installed on the sliding groove 35 through a cylindrical block 39. The sliding groove 35 and the cylindrical block 39 are used to guide the hinge plate 32. The bottom opening of the feeding hopper 31 can be opened and closed by the movement of the hinge plate 32 along the sliding groove 35.
[0026] Reference Figures 8 to 10The feeding mechanism 3 also includes a moving plate 33 and a connecting rod 34. A guide groove 36 is provided on the drying box 41. The guide groove 36 is used to guide the moving plate 33. The moving plate 33 is slidably installed on the guide groove 36 and is hinged to the hinge plate 32. The moving effect of the moving plate 33 can drive the hinge plate 32 to move along the slide groove 35. The connecting rod 34 is fixedly installed on the moving plate 33 and passes through the feeding hopper 31. The moving effect of the connecting rod 34 can drive the moving plate 33 to move. The feeding mechanism 3 also includes a push-pull rod 38, which is fixedly installed on the rotating shaft 46 via a cylindrical rod 37. The push-pull rod 38 and the connecting rod 34 are hinged together via a hinge rod 310. The rotation of the rotating shaft 46 can drive the cylindrical rod 37 to rotate, thereby driving the push-pull rod 38 to rotate, which in turn drives the hinge rod 310 to move, causing the connecting rod 34 to reciprocate and drive the hinge plate 32 to open and close continuously.
[0027] Reference Figures 1 to 10 This plastic preform humidity control and molding equipment, through its drying and mixing / dispersing mechanisms, can effectively mix and disperse plastic granules. Furthermore, the reverse motion between the rotating shaft and the fixed rod further enhances the mixing and dispersing effect, thus improving the overall performance of the plastic preform molding equipment. Additionally, the feeding mechanism continuously and evenly delivers the plastic granules into the drying chamber, preventing excessive amounts of granules from affecting the drying effect and further improving the drying efficiency.
[0028] It should be stated that the above-described specific embodiments are merely preferred embodiments of this utility model and the technical principles employed. Those skilled in the art should understand that various modifications, equivalent substitutions, and variations can be made to this utility model. However, such variations, as long as they do not depart from the spirit of this utility model, should be within the protection scope of this utility model. Furthermore, some terminology used in this application specification and claims is not limiting, but merely for ease of description.
Claims
1. A processing device for adjusting the humidity and molding of plastic bottle preforms, characterized in that, The device includes a base (1), an injection molding machine (2), a feeding mechanism (3), a drying mechanism (4), and a mixing and dispersing mechanism (5). The injection molding machine (2) is fixedly installed on the base (1), and the drying mechanism (4) is fixedly installed on the base (1) through a support frame (6). The drying mechanism (4) is used to dry plastic granules, the feeding mechanism (3) is used to feed the drying mechanism (4), and the mixing and dispersing mechanism (5) is used to mix and disperse the plastic granules in the drying mechanism (4). The mixing and dispersing mechanism (5) includes two sets of fixed rods (52) and a material distribution plate (54). Both sets of fixed rods (52) are rotatably mounted on the drying mechanism (4) via toothed rings (51). The material distribution plate (54) is fixedly mounted on one set of fixed rods (52) via mounting rods (53).
2. The processing equipment for adjusting and molding the humidity of plastic bottle preforms according to claim 1, characterized in that, The mixing and dispersing mechanism (5) also includes a support rod (55) and a mixing blade (57). The support rod (55) is fixedly installed on another set of fixed rods (52), and the mixing blade (57) is rotatably installed on the support rod (55) via a rotating column (56).
3. The processing equipment for adjusting and molding the humidity of plastic bottle preforms according to claim 1, characterized in that, The drying mechanism (4) includes a drying box (41), a rotating shaft (46) and a stirring rod (47). The drying box (41) is fixedly installed on the support frame (6) and is connected to the input end of the injection molding machine (2). The rotating shaft (46) is rotatably installed on the drying box (41) and the stirring rod (47) is fixedly installed on the rotating shaft (46).
4. The processing equipment for adjusting and molding the humidity of plastic bottle preforms according to claim 3, characterized in that, The drying mechanism (4) further includes a first gear (44) and a second gear (45). The first gear (44) is rotatably mounted on the drying box (41) via a drive rod (43), and the first gear (44) meshes with the gear ring (51). The second gear (45) is fixedly mounted on the rotating shaft (46), and the second gear (45) meshes with the first gear (44).
5. The processing equipment for adjusting and molding the humidity of plastic bottle preforms according to claim 4, characterized in that, The drying mechanism (4) also includes a motor (42), which is fixedly installed on the drying box (41), and the output shaft of the motor (42) is fixedly connected to the drive rod (43).
6. The processing equipment for adjusting and molding the humidity of plastic bottle preforms according to claim 3, characterized in that, The feeding mechanism (3) includes a feeding hopper (31) and a hinge plate (32). The feeding hopper (31) is fixedly installed on the drying box (41), and a sliding groove (35) is provided on the feeding hopper (31). The hinge plate (32) is slidably installed on the sliding groove (35) through a cylindrical block (39).
7. The processing equipment for adjusting and molding the humidity of plastic bottle preforms according to claim 6, characterized in that, The feeding mechanism (3) also includes a moving plate (33) and a connecting rod (34). The drying box (41) is provided with a guide groove (36). The moving plate (33) is slidably installed on the guide groove (36) and the moving plate (33) is hinged to the hinge plate (32). The connecting rod (34) is fixedly installed on the moving plate (33) and the connecting rod (34) passes through the feeding hopper (31).
8. The processing equipment for adjusting and molding the humidity of plastic bottle preforms according to claim 7, characterized in that, The feeding mechanism (3) also includes a push-pull rod (38), which is fixedly installed on the rotating shaft (46) by a cylindrical rod (37), and the push-pull rod (38) and the connecting rod (34) are hinged by a hinge rod (310).