Material drying machine for injection-molded part production

Abstract

The utility model relates to raw material drying machine technical field especially for raw material drying machine for injection molding part production, including device body, the outside one side of device body is installed and has the air inlet pipe, one side of air inlet pipe is installed and has the fan heater, the top one end of device body is installed and has the feed hopper, the top hinged of feed hopper has the sealing cover, the top other end of device body is installed and has the lifting assembly, the top of lifting assembly is installed and has the stirring assembly. Device body includes the shell. The device can pass through stirring assembly, so that the main stirring vane and the vice stirring vane can rotate to each other, so that the raw material can be fully scattered, avoid the uneven problem that the raw material is dried because of local accumulation, can drive the main stirring vane and the vice stirring blade height adjustment through the lifting assembly simultaneously, thereby can stir the raw material of different height, further improved the drying efficiency.

Description

Technical Field

[0001] This utility model relates to the field of raw material drying machine technology, and specifically to a raw material drying machine used in the production of injection molded parts. Background Technology

[0002] Injection molding production is a systematic process that transforms plastic raw materials into various precision molded parts. The raw material drying machine is a key piece of equipment in this process to ensure the quality of raw materials and avoid defects in finished products. Before injection molding, the raw material drying machine dries the granular raw materials through hot air circulation and dehumidifying rollers, effectively removing internal moisture and ensuring uniform drying and stable flowability.

[0003] Chinese utility model patent CN222372059U discloses a drying device for injection molding machines that facilitates material loading and unloading, including "continuously agitating the injection molding raw material with inclined stirring blades to improve the drying efficiency and uniformity"; however, even with the stirring blades set in an inclined position, there are still dead zones in the stirring, and the stirring method is difficult to form a three-dimensional and turbulent flow field. It can only drive the raw material to circulate in a fixed direction, resulting in some materials that cannot be stirred in the device, thus leading to poor material drying effect. Utility Model Content

[0004] The purpose of this invention is to provide a raw material drying machine for injection molded parts production, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a raw material drying machine for injection molded parts production, comprising a device body, an air inlet pipe installed on one side of the device body, a heater installed on one side of the air inlet pipe, a feeding hopper installed at one top end of the device body, a sealing cover hinged to the top of the feeding hopper, a lifting assembly installed at the other top end of the device body, and a stirring assembly installed at the top of the lifting assembly.

[0006] The device body includes an outer shell, with support legs installed around the bottom of the outer shell, a discharge pipe installed at the center of the bottom of the outer shell, a valve provided on the outer side of the discharge pipe, and a drying cylinder installed on the inner side of the outer shell.

[0007] The lifting assembly includes a fixed frame fixedly connected to one end of the top of the housing. A hydraulic cylinder and an oil pump are respectively installed at the top center and one side of the fixed frame. The hydraulic cylinder and the oil pump are connected by an oil supply pipe. A piston rod is provided on the bottom inner side of the hydraulic cylinder. The bottom of the piston rod vertically passes through the top of the fixed frame and is connected to a connecting plate. Fixed blocks are fixedly connected to both sides of one end of the connecting plate.

[0008] The stirring assembly includes a mounting bracket fixedly connected to one side of the top of the connecting plate. A motor is mounted on the top of the mounting bracket. The output shaft of the motor passes vertically through the inside of the main gear and is connected to the main shaft. Main stirring blades are evenly installed on the outside of the main shaft. A secondary gear meshes with the outside of the main gear. A secondary shaft is vertically installed through the inside of the secondary gear. Secondary stirring blades are installed on the outside of the secondary shaft.

[0009] The beneficial effects of this invention are as follows: the stirring assembly allows the main stirring blades and the auxiliary stirring blades to rotate in opposite directions, creating a three-dimensional interlaced flow field within the drying drum. This ensures the raw materials are thoroughly dispersed, reducing the formation of lumps and keeping them in a loose state. This prevents uneven drying caused by localized accumulation of raw materials, thereby improving drying efficiency. Furthermore, the lifting assembly allows for height adjustment of the main and auxiliary stirring blades, enabling stirring of raw materials at different heights. This ensures that the raw materials in each area are thoroughly dispersed, further enhancing drying efficiency.

[0010] To enable the drying of raw materials:

[0011] Further configuration: Ventilation holes are evenly distributed on the outside of the drying cylinder.

[0012] By adopting the above technical solution, the hot air generated by the heater can enter the interior of the outer shell through the air inlet pipe, and then enter the interior of the drying cylinder through the ventilation hole, thereby drying the raw materials inside.

[0013] To enable height adjustment by moving the fixed block:

[0014] Further configuration: The piston rod and the connecting plate are connected by an oil pump, an oil supply pipe and a hydraulic cylinder to form a transmission structure.

[0015] By adopting the above technical solution, the starting oil pump injects hydraulic oil into the hydraulic cylinder through the oil supply pipe, and then the hydraulic oil pushes the piston rod out of the hydraulic cylinder, thereby driving the connecting plate to move vertically, which in turn drives the fixed block to move vertically, thereby adjusting the height of the fixed block.

[0016] To enable height adjustment of both the main and secondary spindles while they are rotating:

[0017] Further configuration: both the main shaft and the auxiliary shaft are vertically mounted inside the fixed block via bearings, and both the main shaft and the auxiliary shaft are slidably connected to the top inner side of the housing, and a sealing ring is installed on the top inner side of the housing.

[0018] By adopting the above technical solution, the main shaft and auxiliary shaft can be rotated and stirred during the process of stirring the raw materials. The bearings can be used to adjust the height of the raw materials at different heights, thereby improving the stirring efficiency and thus increasing the drying efficiency. At the same time, when the main shaft and auxiliary shaft slide on the top inner side of the outer casing, the sealing ring can be used to increase the sealing effect and reduce hot air leakage.

[0019] To improve drying efficiency:

[0020] Further configuration: the motor, main gear, main shaft and main stirring blades form a rotating structure, and the main gear and auxiliary gear form a meshing transmission structure.

[0021] By adopting the above technical solution, the output shaft of the motor can drive the main gear, main shaft and main stirring blades to rotate. The main gear will drive the secondary gear to rotate through meshing transmission, thereby driving the secondary shaft and secondary stirring blades to rotate. This makes the main stirring blades and secondary stirring blades rotate in opposite directions, which can form a three-dimensional interlaced flow field in the drying drum, so that the raw materials are fully dispersed, avoiding the problem of uneven drying caused by local accumulation of raw materials, and thus improving the drying efficiency.

[0022] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the main view of this utility model;

[0024] Figure 2 This is a schematic cross-sectional view of the device body of this utility model;

[0025] Figure 3 This is a schematic diagram of the lifting component of this utility model;

[0026] Figure 4 This is a schematic diagram of the stirring assembly of this utility model.

[0027] In the diagram: 1. Device body; 101. Outer shell; 102. Support leg; 103. Discharge pipe; 104. Valve; 105. Drying cylinder; 2. Air inlet pipe; 3. Warm air blower; 4. Feed hopper; 5. Sealing cover; 6. Lifting assembly; 601. Fixing frame; 602. Hydraulic cylinder; 603. Oil pump; 604. Oil delivery pipe; 605. Piston rod; 606. Connecting plate; 607. Fixing block; 7. Mixing assembly; 701. Mounting frame; 702. Motor; 703. Main gear; 704. Main shaft; 705. Main mixing blade; 706. Secondary gear; 707. Secondary shaft; 708. Secondary mixing blade. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0029] Please see Figures 1 to 4 A raw material drying machine for injection molded parts production includes a device body 1, an air inlet pipe 2 installed on one side of the device body 1, a heater 3 installed on one side of the air inlet pipe 2, a feed hopper 4 installed at one top end of the device body 1, a sealing cover 5 hinged to the top of the feed hopper 4, a lifting assembly 6 installed at the other top end of the device body 1, and a stirring assembly 7 installed on the top of the lifting assembly 6.

[0030] The device body 1 includes an outer shell 101, with support legs 102 installed around the bottom of the outer shell 101, a discharge pipe 103 installed at the center of the bottom of the outer shell 101, a valve 104 provided on the outer side of the discharge pipe 103, and a drying cylinder 105 installed on the inner side of the outer shell 101.

[0031] The lifting assembly 6 includes a fixed frame 601 fixedly connected to one end of the top of the housing 101. A hydraulic cylinder 602 and an oil pump 603 are respectively installed at the top center and one side of the fixed frame 601. The hydraulic cylinder 602 and the oil pump 603 are connected by an oil supply pipe 604. A piston rod 605 is provided on the bottom inner side of the hydraulic cylinder 602. The bottom of the piston rod 605 vertically penetrates the top of the fixed frame 601 and is connected to a connecting plate 606. Fixed blocks 607 are fixedly connected to both sides of one end of the connecting plate 606.

[0032] The stirring assembly 7 includes a mounting bracket 701 fixedly connected to one side of the top of the connecting plate 606. A motor 702 is mounted on the top of the mounting bracket 701. The output shaft of the motor 702 passes vertically through the inner side of the main gear 703 and is connected to the main shaft 704. Main stirring blades 705 are evenly installed on the outside of the main shaft 704. A secondary gear 706 meshes with the outer side of the main gear 703. A secondary shaft 707 is vertically installed through the inner side of the secondary gear 706. Secondary stirring blades 708 are installed on the outside of the secondary shaft 707.

[0033] In this embodiment, as Figure 1 and Figure 2 As shown, ventilation holes are evenly distributed on the outside of the drying cylinder 105.

[0034] In this embodiment, as Figure 1 and Figure 3 As shown, the piston rod 605 and the connecting plate 606 form a transmission structure through the cooperation of the oil pump 603, the oil supply pipe 604 and the hydraulic cylinder 602.

[0035] In this embodiment, as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the main shaft 704 and the auxiliary shaft 707 are both vertically mounted inside the fixed block 607 through bearings, and the main shaft 704 and the auxiliary shaft 707 are slidably connected to the top inner side of the housing 101, and a sealing ring is installed on the top inner side of the housing 101.

[0036] In this embodiment, as Figure 1 and Figure 4 As shown, the motor 702, main gear 703, main shaft 704 and main stirring blade 705 form a rotating structure, and the main gear 703 and the auxiliary gear 706 form a meshing transmission structure.

[0037] The computer software involved in the hardware carriers such as the geared motor in the technical solution is software technology known to those skilled in the art. It is merely applied to the aforementioned hardware carriers. In other words, the computer software portion of the technical solution is an essential technical feature for solving the aforementioned technical problem, constituting a necessary technical feature for the technical problem solved by this application, but it is not a differentiating technical feature or a point of technical improvement. The applicant has not made any technical improvements to the computer software portion involved in the aforementioned related hardware carriers, nor is it a key technical point of the invention.

[0038] Therefore, the "gear motor", "oil pump", "heater" and other components involved in this application are physical functional modules that combine existing computer software programs or protocols with the hardware carrier of this application. The computer software programs involved in these physical functional modules are technologies known to those skilled in the art and are not improvements of this application. The improvement of this application should be the interaction between the various physical functional modules, that is, the improvement of the overall structure of the automatic dipping machine of this application, in order to solve the corresponding technical problems to be solved by this application.

[0039] The working process of this raw material drying machine used for injection molded parts production is as follows:

[0040] First, the raw materials are injected into the drying cylinder 105 through the feed hopper 4. Then, the sealing cover 5 is closed. Next, the motor 702 is started. The output shaft of the motor 702 drives the main gear 703, the main shaft 704, and the main stirring blade 705 to rotate. This causes the main gear 703 to drive the secondary gear 706 to rotate through meshing transmission, thereby causing the secondary shaft 707 and the secondary stirring blade 708 to rotate. This causes the main stirring blade 705 and the secondary stirring blade 708 to rotate in opposite directions, thus stirring the raw materials. During the stirring process, the heater 3 can be started. The hot air generated by the heater 3 enters the outer casing 101 through the air inlet pipe 2, and then enters the drying cylinder 105 through the ventilation holes, thus drying the raw materials. During the drying process, the oil pump 603 (model: PV063R1 K1 T1) can be started. The hydraulic oil (NMMC) enters the hydraulic cylinder 602 (model: HSG-KF100 / 63-500) through the oil supply pipe 604, thereby pushing the piston rod 605 out of the hydraulic cylinder 602. This drives the connecting plate 606 and the fixed block 607 to adjust their height. In turn, the main shaft 704 and the auxiliary shaft 707 drive the main stirring blade 705 and the auxiliary stirring blade 708 to adjust their height. This allows for stirring of the material at different heights, improving drying efficiency. After the drying process is completed, the operator can open the valve 104 to discharge the dried raw material through the discharge pipe 103.

[0041] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0042] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A raw material drying machine for injection molded parts production, comprising a device body (1), characterized in that: An air inlet pipe (2) is installed on one side of the outer side of the device body (1), a heater (3) is installed on one side of the air inlet pipe (2), a feeding hopper (4) is installed at one top end of the device body (1), a sealing cover (5) is hinged to the top of the feeding hopper (4), a lifting assembly (6) is installed at the other top end of the device body (1), and a stirring assembly (7) is installed on the top of the lifting assembly (6). The device body (1) includes a shell (101), with support legs (102) installed around the bottom of the shell (101), a discharge pipe (103) installed at the center of the bottom of the shell (101), a valve (104) provided on the outer side of the discharge pipe (103), and a drying cylinder (105) installed on the inner side of the shell (101). The lifting assembly (6) includes a fixed frame (601) fixedly connected to one end of the top of the outer shell (101). A hydraulic cylinder (602) and an oil pump (603) are respectively installed at the top center and one side of the fixed frame (601). The hydraulic cylinder (602) and the oil pump (603) are connected by an oil supply pipe (604). A piston rod (605) is provided on the bottom inner side of the hydraulic cylinder (602). The bottom of the piston rod (605) vertically penetrates the top of the fixed frame (601) and is connected to a connecting plate (606). Fixed blocks (607) are fixedly connected to both sides of one end of the connecting plate (606). The stirring assembly (7) includes a mounting bracket (701) fixedly connected to one side of the top of the connecting plate (606). A motor (702) is mounted on the top of the mounting bracket (701). The output shaft of the motor (702) passes vertically through the inner side of the main gear (703) and is connected to the main shaft (704). Main stirring blades (705) are evenly installed on the outside of the main shaft (704). A secondary gear (706) meshes with the outer side of the main gear (703). A secondary shaft (707) is vertically installed through the inner side of the secondary gear (706). Secondary stirring blades (708) are installed on the outside of the secondary shaft (707).

2. The raw material drying machine for injection molded parts production as described in claim 1, characterized in that: The drying cylinder (105) has ventilation holes evenly distributed on its exterior.

3. The raw material drying machine for injection molded parts production as described in claim 1, characterized in that: The piston rod (605) and the connecting plate (606) form a transmission structure through the cooperation of the oil pump (603), the oil delivery pipe (604) and the hydraulic cylinder (602).

4. The raw material drying machine for injection molded parts production as described in claim 1, characterized in that: The main shaft (704) and the secondary shaft (707) are both vertically mounted inside the fixed block (607) through bearings, and the main shaft (704) and the secondary shaft (707) are slidably connected to the top inner side of the housing (101), and a sealing ring is installed on the top inner side of the housing (101).

5. The raw material drying machine for injection molded parts production as described in claim 1, characterized in that: The motor (702), main gear (703), main shaft (704) and main stirring blade (705) form a rotating structure, and the main gear (703) and auxiliary gear (706) form a meshing transmission structure.

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