Raw material preheating and stirring device for injection molding machine
By combining the oil heating chamber and the rotary stirring assembly, the problems of uneven heating and low stirring efficiency are solved, achieving more uniform heating and more efficient stirring, thus improving the production quality of the injection molding machine.
Patent Information
- Application Number
- CN202520583368.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-03-31
AI Technical Summary
In existing injection molding machine raw material preheating and mixing devices, uneven heating and rapid temperature changes lead to problems such as raw material damage and low mixing efficiency.
It employs an oil temperature heating chamber and a rotary stirring assembly, and achieves oil circulation heating through a pressure pump and delivery pipe. Combined with a multi-directional serpentine blade driven by a rotary motor and a satellite stirring mode, it improves heating uniformity and stirring efficiency.
This results in more uniform heating, a larger mixing area, improved mixing efficiency and uniformity, and increased yield of injection molding machines.
Smart Images

Figure CN223972076U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection molding production technology, specifically to a raw material preheating and stirring device for injection molding machines. Background Technology
[0002] The raw material preheating and stirring device of the injection molding machine is an important auxiliary equipment in the injection molding production process. It is mainly used to preheat and stir the plastic raw materials before injection molding. The preheating function raises the temperature of the raw materials to a certain level through heating elements, which helps to improve the fluidity of the plastic. The stirring function uses a motor to drive the stirring paddle and other components to mix the raw materials evenly.
[0003] Currently, the raw material preheating and mixing devices for injection molding machines generally use heating wires for heating. The heating range is uneven and the temperature changes rapidly, which is not stable enough and can easily damage the raw materials, reducing the yield rate. In addition, the contact area of ordinary mixing blades is small during mixing, resulting in insufficient mixing and reducing the mixing efficiency. Utility Model Content
[0004] The purpose of this utility model is to provide a preheating and stirring device for injection molding machine raw materials, to solve the problems mentioned in the background art, which generally use heating wires for heating, resulting in uneven heating zones and rapid temperature changes, which are not stable enough and can easily damage the raw materials, reducing the yield rate. Furthermore, the small contact area of ordinary stirring blades during stirring leads to uneven stirring and reduced stirring efficiency. To achieve the above objective, this utility model provides the following technical solution: a preheating and stirring device for injection molding machine raw materials, including a tank, with a stirring assembly inside the tank. The stirring assembly includes an oil temperature heating box, which is located on one side of the tank. A pressure pump is fixedly connected to one side of the oil temperature heating box, and a delivery pipe is fixedly connected to the top of the pressure pump. A cavity pipe is fixedly connected to the other end of the delivery pipe, and a recovery pipe is fixedly connected to the top of the cavity pipe. A rotating rod is movably connected to the inner wall of one side of the tank, and a gear is fixedly connected to the side surface of the rotating rod. A rotary motor is fixedly connected to the top of the tank, and a rotating shaft is fixedly connected to the transmission end of the rotary motor. A second gear is fixedly connected to the first gear, and the second gear meshes with the first gear. Several serpentine blades are fixedly connected to the side surface of the first rotating rod. This injection molding machine raw material preheating and stirring device, by adding a stirring component, allows the oil temperature heating box to heat the internal heating oil. Through a pressure pump and a delivery pipe, the heated oil is pumped from the bottom into the internal chamber of the hollow tube, and then squeezed into the recovery pipe and returned to the oil temperature heating box to complete the circulation. The heating range is more comprehensive, and the heating is more uniform through liquid heating. The rotating motor drives the rotating shaft and the second gear to rotate, thereby driving the first gear and the first rotating rod to rotate, which in turn drives the serpentine blades to rotate. The serpentine blades are multi-directional curved plates with a larger contact area with the raw material, resulting in more comprehensive and uniform stirring and improved stirring efficiency.
[0005] More preferably, the interior of the tank is provided with an auxiliary component, the auxiliary component including a second rotating rod, which is movably connected to the inner wall of one side of the tank.
[0006] More preferably, a gear three is fixedly connected to the side surface of the rotating rod two, and several arc-shaped strips are fixedly connected to the side surface of the rotating rod two.
[0007] More preferably, a rotating ring is movably connected to one side of the inner wall of the tank. Several triangular blocks are fixedly connected inside the rotating ring. The triangular blocks mesh with the arc-shaped strip. This injection molding machine raw material preheating and stirring device, by adding auxiliary components, has gear three meshing with gear two and being driven to rotate by a rotary motor, thereby driving the rotating rod two to rotate, driving the arc-shaped strip to rotate, and the arc-shaped strip can in turn drive the rotating ring containing the triangular blocks to rotate, thereby driving the connecting plate, stirring blade and arc-shaped blade to rotate. This allows the serpentine blade to rotate on its own axis while the stirring blade and arc-shaped blade revolve synchronously around the rotating rod one, forming a satellite stirring mode of rotation and revolution, which improves the stirring force, stirring area and stirring uniformity, and is conducive to improving stirring efficiency.
[0008] More preferably, the bottom of the rotating ring is fixedly connected to two connecting plates, one side of the connecting plates is fixedly connected to several arc-shaped pieces, and the other side of the connecting plates is fixedly connected to several stirring pieces.
[0009] More preferably, a feeding assembly is provided at the top of the tank, the feeding assembly including a feeding pipe, the feeding pipe being fixedly connected to the top of the tank.
[0010] More preferably, the top end of the feeding tube is fixedly connected to a funnel, the top of the funnel is provided with a threaded groove, the top of the funnel is movably connected to a protective cover, the bottom of the protective cover is fixedly connected to a threaded ring, and the top of the protective cover is fixedly connected to a handle.
[0011] More preferably, the bottom of the tank is fixedly connected to a discharge pipe, the other end of the discharge pipe is fixedly connected to a control valve, and the bottom of the tank is fixedly connected to a plurality of support columns, the bottom end of the support columns being fixedly connected to an anti-slip pad.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] In this invention, the injection molding machine raw material preheating and stirring device, by adding a stirring component, allows the oil temperature heating tank to heat the internal heating oil. Through a pressure pump and a delivery pipe, the heated oil is pumped from the bottom into the internal chamber of the hollow tube, then squeezed into the recovery pipe and returned to the oil temperature heating tank to complete the circulation. The heating range is more comprehensive, and the liquid heating makes the heating more uniform. The rotating motor drives the rotating shaft and gear two to rotate, which in turn drives gear one and rotating rod one to rotate, thereby driving the serpentine plate to rotate. The serpentine plate is a multi-directional curved plate with a larger contact area with the raw material, resulting in more comprehensive and uniform stirring and improving stirring efficiency.
[0014] In this invention, the injection molding machine raw material preheating and stirring device, by adding auxiliary components, allows gear three to mesh with gear two and be driven to rotate by a rotary motor, thereby driving the rotating rod two to rotate, which in turn drives the arc strip to rotate. The arc strip can then drive the rotating ring containing triangular blocks to rotate, thereby driving the connecting plate, stirring blade, and arc strip to rotate. This allows the serpentine blade to rotate on its own axis while the stirring blade and arc strip revolve synchronously around the rotating rod one, forming a satellite stirring mode of rotation and revolution. This improves the stirring force, stirring area, and stirring uniformity, which is beneficial for improving stirring efficiency. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;
[0017] Figure 3 This is a schematic diagram of a partial structure of the present invention. Figure 1 ;
[0018] Figure 4 This is a schematic diagram of a partial structure of the present invention. Figure 2 ;
[0019] Figure 5 This is a schematic diagram of a partial structure of the present invention. Figure 3 ;
[0020] Figure 6 This is a schematic diagram of a partial structure of the present invention. Figure 4 .
[0021] In the diagram: 1. Tank; 2. Agitator assembly; 201. Oil temperature heating box; 202. Pressure pump; 203. Delivery pipe; 204. Hollow pipe; 205. Recovery pipe; 206. Rotating rod one; 207. Gear one; 208. Rotary motor; 209. Rotating shaft; 210. Gear two; 211. Snake-shaped blade; 3. Auxiliary assembly; 301. Rotating rod two; 302. Gear three; 303. Arc-shaped strip; 304. Rotating ring; 305. Triangular block; 306. Connecting plate; 307. Arc-shaped blade; 308. Agitator blade; 4. Feeding assembly; 401. Feeding pipe; 402. Funnel; 403. Threaded groove; 404. Protective cover; 405. Threaded ring; 406. Handle; 5. Discharge pipe; 6. Control valve; 7. Support column; 8. Anti-slip mat. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figure 1 - Figure 6 A preheating and stirring device for injection molding machine raw materials includes a tank body 1. A stirring assembly 2 is installed inside the tank body 1. The stirring assembly 2 includes an oil temperature heating chamber 201, which is located on one side of the tank body 1. A pressure pump 202 is fixedly connected to one side of the oil temperature heating chamber 201. A conveying pipe 203 is fixedly connected to the top of the pressure pump 202. A cavity pipe 204 is fixedly connected to the other end of the conveying pipe 203. A recovery pipe 205 is fixedly connected to the top of the cavity pipe 204. A rotating rod 206 is movably connected to the inner wall of one side of the tank body 1. A gear 207 is fixedly connected to the side surface of the rotating rod 206. A rotary motor 208 is fixedly connected to the top of the tank body 1. A rotating shaft 209 is fixedly connected to the transmission end of the rotary motor 208. A gear 210 is fixedly connected to the side surface of the rotating shaft 209. The gear 210 meshes with the gear 207. Several serpentine blades 211 are fixedly connected to the side surface of the rotating rod 206.
[0024] In this embodiment, as Figure 3 , Figure 4 and Figure 6 As shown, an auxiliary component 3 is provided inside the tank body 1. The auxiliary component 3 includes a rotating rod 301, which is movably connected to the inner wall of one side of the tank body 1.
[0025] In this embodiment, as Figure 1 and Figure 2As shown, a gear 302 is fixedly connected to the side surface of the rotating rod 2 301, and several arc-shaped strips 303 are fixedly connected to the side surface of the rotating rod 2 301.
[0026] In this embodiment, as Figure 3 , Figure 4 and Figure 6 As shown, a rotating ring 304 is movably connected to one side of the inner wall of the tank 1. Several triangular blocks 305 are fixedly connected inside the rotating ring 304, and the triangular blocks 305 mesh with the arc-shaped strip 303.
[0027] In this embodiment, as Figure 3 , Figure 4 and Figure 6 As shown, two connecting plates 306 are fixedly connected to the bottom of the rotating ring 304. Several arc-shaped plates 307 are fixedly connected to one side of the connecting plate 306, and several stirring plates 308 are fixedly connected to one side of the connecting plate 306.
[0028] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, a feeding assembly 4 is provided on the top of the tank body 1. The feeding assembly 4 includes a feeding pipe 401, which is fixedly connected to the top of the tank body 1.
[0029] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the top end of the feeding pipe 401 is fixedly connected to a funnel 402, the top of the funnel 402 is provided with a threaded groove 403, the top of the funnel 402 is movably connected to a protective cover 404, the bottom of the protective cover 404 is fixedly connected to a threaded ring 405, and the top of the protective cover 404 is fixedly connected to a handle 406.
[0030] In this embodiment, as Figure 1 and Figure 5 As shown, a discharge pipe 5 is fixedly connected to the bottom of the tank body 1, and a control valve 6 is fixedly connected to the other end of the discharge pipe 5. Several support columns 7 are fixedly connected to the bottom of the tank body 1, and anti-slip pads 8 are fixedly connected to the bottom of the support columns 7.
[0031] The usage and advantages of this utility model: The operation process of this injection molding machine raw material preheating and stirring device is as follows:
[0032] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the oil heating chamber 201 heats the internal heating oil. Through the pressure pump 202 and the delivery pipe 203, the heated oil is pumped from the bottom into the internal chamber of the hollow pipe 204, then squeezed into the recovery pipe 205 and returned to the oil heating chamber 201 to complete the cycle. This provides a more comprehensive heating area, and the liquid heating makes the heating more uniform. The rotary motor 208 drives the rotary shaft 209 and gear 210 to rotate, which in turn drives gear 207 and the rotary rod 206 to rotate, thereby driving the serpentine blade 211 to rotate. The serpentine blade 211 is a multi-directional curved plate with a larger contact area with the raw material, resulting in more efficient stirring. The overall uniformity of the mixing process significantly improves the mixing efficiency. Gear 302 meshes with gear 210 and can be driven to rotate by the rotary motor 208, thereby driving the rotating rod 201 to rotate and the arc strip 303 to rotate. The arc strip 303 can then drive the rotating ring 304 containing the triangular block 305 to rotate, thereby driving the connecting plate 306, the stirring plate 308, and the arc strip 307 to rotate. This allows the serpentine plate 211 to rotate on its own axis while the stirring plate 308 and the arc strip 307 revolve around the rotating rod 206 in sync, forming a satellite mixing mode of rotation and revolution, which improves the mixing strength, mixing area, and mixing uniformity.
[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A raw material preheating and stirring device for an injection molding machine, comprising a tank body (1), characterized in that: The inside of the tank body (1) is provided with a stirring assembly (2), the stirring assembly (2) comprises an oil temperature heating box (201), the oil temperature heating box (201) is arranged on one side of the tank body (1), one side of the oil temperature heating box (201) is fixedly connected with a pressurizing pump (202), the top of the pressurizing pump (202) is fixedly connected with a conveying pipe (203), the other end of the conveying pipe (203) is fixedly connected with a cavity pipe (204), the top of the cavity pipe (204) is fixedly connected with a recovery pipe (205), the inside wall of one side of the tank body (1) is movably connected with a rotating rod one (206), the side surface of the rotating rod one (206) is fixedly connected with a gear one (207), the top of the tank body (1) is fixedly connected with a rotating motor (208), the transmission end of the rotating motor (208) is fixedly connected with a rotating shaft (209), the side surface of the rotating shaft (209) is fixedly connected with a gear two (210), the gear two (210) is meshed with the gear one (207), the side surface of the rotating rod one (206) is fixedly connected with a plurality of serpentine pieces (211).
2. The raw material preheating and stirring device for injection molding machines according to claim 1, characterized in that: The inside of the tank body (1) is provided with an auxiliary assembly (3), the auxiliary assembly (3) comprises a rotating rod two (301), the rotating rod two (301) is movably connected to the inside wall of one side of the tank body (1).
3. The raw material preheating and stirring device for injection molding machines according to claim 2, characterized in that: The side surface of the rotating rod two (301) is fixedly connected with a gear three (302), the side surface of the rotating rod two (301) is fixedly connected with a plurality of arc strips (303).
4. The raw material preheating and stirring device for injection molding machines according to claim 3, characterized in that: The inside wall of one side of the tank body (1) is movably connected with a rotating ring (304), the inside of the rotating ring (304) is fixedly connected with a plurality of triangular blocks (305), the triangular blocks (305) are meshed with the arc strips (303).
5. The raw material preheating and mixing device for injection molding machines according to claim 4, characterized in that: The bottom of the rotating ring (304) is fixedly connected with two connecting plates (306), one side of the connecting plate (306) is fixedly connected with a plurality of arc pieces (307), one side of the connecting plate (306) is fixedly connected with a plurality of stirring pieces (308).
6. The raw material preheating and mixing device for injection molding machines according to claim 1, characterized in that: The top of the tank body (1) is provided with a feeding assembly (4), the feeding assembly (4) comprises a feeding pipe (401), the feeding pipe (401) is fixedly connected to the top of the tank body (1).
7. The raw material preheating and mixing device for injection molding machines according to claim 6, characterized in that: The top end of the feeding pipe (401) is fixedly connected with a hopper (402), the top of the hopper (402) is provided with a threaded groove (403), the top of the hopper (402) is movably connected with a protective cover (404), the bottom of the protective cover (404) is fixedly connected with a threaded ring (405), the top of the protective cover (404) is fixedly connected with a handle (406).
8. The raw material preheating and mixing device for injection molding machines according to claim 1, characterized in that: The bottom of the tank body (1) is fixedly connected with a discharging pipe (5), the other end of the discharging pipe (5) is fixedly connected with a control valve (6), the bottom of the tank body (1) is fixedly connected with a plurality of supporting columns (7), the bottom end of the supporting column (7) is fixedly connected with an anti-skid pad (8).