A raw material stirring device for plastic product processing
By introducing spiral stirring blades and lifting components into the mixing equipment, the problem of insufficient contact of raw materials is solved, achieving uniform mixing of various raw materials and improving the mixing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU SANRUI TECH IND CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-07-14
AI Technical Summary
In existing mixing equipment for plastic product processing, the raw materials below the two feed hoppers cannot fully contact each other, resulting in poor mixing effect and inability to effectively mix multiple raw materials.
The mixing drum uses spiral stirring blades and multiple stirring blades to stir and mix plastic raw materials. The output shaft of the drive motor drives the rotating shaft to rotate, and the synchronous belt and synchronous pulley drive the stirring shaft and stirring blades to rotate. The spiral stirring blades stir and mix the plastic raw materials, and the mixture is further mixed through the discharge port. Combined with the lifting component, the feed hopper moves up and down to ensure that the raw materials are fully fed into the mixing drum.
This process ensures thorough contact and mixing of various raw materials, improves the stirring effect, and guarantees uniform mixing of plastic raw materials.
Smart Images
Figure CN224489625U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastics technology, and in particular to a raw material mixing device for processing plastic products. Background Technology
[0002] Plastic is a high molecular polymer that is lightweight, durable, and highly malleable. Plastic products are a general term for daily necessities and industrial products made primarily from plastic. This includes products manufactured using all processes such as injection molding and thermoforming. In the production of plastic products, it is necessary to mix and stir various plastic raw materials in advance.
[0003] A search revealed a Chinese patent (application number "202321837932.2") disclosing "a raw material mixing device for processing plastic products." This mixing device includes a mixing chamber with a structural chamber fixedly connected to its bottom. Through holes are provided on both sides of the top of the mixing chamber. A round rod is vertically positioned below each through hole. The bottom of the round rod passes through the bottom of the mixing chamber and the top of the structural chamber, and pulleys are fixedly connected to it. The two pulleys are connected by a belt. A thin rod extending into the inner cavity of the through hole is fixedly connected to the top of the round rod. Several scrapers are fixedly connected to the outer ring of the thin rod, with one side of each scraper adhering to the inner wall of an adjacent through hole. Several mixing blocks are fixedly connected to the outer ring of the round rod. However, during use, the raw materials below the two feed hoppers do not fully contact each other, making it difficult to effectively mix two or more raw materials, resulting in poor mixing performance. Utility Model Content
[0004] This utility model provides a raw material mixing device for plastic product processing, which solves the problem proposed in the prior art that when mixing raw materials, the materials under the two feed hoppers do not come into full contact, making it difficult to mix two or more materials effectively and resulting in poor mixing effect.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A raw material mixing device for processing plastic products includes a mixing drum and a drum cover bolted to the top outer wall of the mixing drum. The mixing drum contains a mixing mechanism, which includes a mixing shaft that passes through and is connected to the outer wall of the drum cover via bearings, and several mixing blades, each with several material outlets on its outer wall. The top of the drum cover contains a transmission mechanism, which includes a drive motor and a rotating shaft connected to the bottom of the output shaft of the drive motor via a coupling. The drum cover contains two feeding mechanisms, each including a feed hopper that passes through and slides on the outer wall of the drum cover, a limiting ring welded to the lower outer wall of the feed hopper, a return spring fitted to the lower outer wall of the feed hopper, and a contact ring with a tapered lower outer wall. The mixing drum contains a lifting assembly, which includes a mounting ring connected to the upper outer wall of the mixing shaft via a pin, and several lifting plates welded to the outer wall of the mounting ring.
[0007] Preferably, a discharge pipe is fixedly provided on the inner wall of the bottom of the mixing drum, and an electromagnetic gate valve is clamped and installed on the outer wall of one end of the discharge pipe.
[0008] Preferably, several of the stirring blades are welded to the lower outer wall of the stirring shaft, and a fixing frame is connected to the lower outer wall of the stirring shaft by a bearing, and the fixing frame is welded to the lower inner wall of the stirring cylinder.
[0009] Preferably, a mounting bracket is welded to the top outer wall of the cylinder cover, and the drive motor is bolted to the top outer wall of the mounting bracket. The bottom end of the rotating shaft is connected to the top outer wall of the cylinder cover via a bearing. Synchronous pulleys are splined to the middle outer wall of the rotating shaft and the upper outer wall of the stirring shaft, and the two synchronous pulleys are connected to each other via a synchronous belt.
[0010] The above scheme uses a drive motor output shaft to drive a rotating shaft, which in turn drives a stirring shaft and multiple stirring blades to rotate via a synchronous belt and two synchronous pulleys. The spiral stirring blades rotate to stir and mix the plastic raw materials. During the stirring process, some raw materials leak out through the discharge port and are mixed again with the raw materials on the next stirring blade.
[0011] Preferably, the limiting ring abuts against the outer wall of the top of the cylinder cover, and the top end of the reset spring abuts against the outer wall of the bottom of the cylinder cover, and the contact ring is welded to the outer wall of the bottom end of the feed hopper.
[0012] Preferably, a support ring is bolted to the upper inner wall of the mixing cylinder, and several lifting plates abut against the top outer wall of the support ring.
[0013] The above scheme uses a stirring shaft to drive the mounting ring and multiple lifting plates to rotate. The lifting plates press against the contact ring, causing the contact ring to press against the return spring. The lifting plates disengage from the contact ring, and the feed hopper resets under the tension of the return spring. This allows the feed hopper to move up and down repeatedly, ensuring that the raw materials in the feed hopper are fully fed into the mixing drum.
[0014] The beneficial effects of this utility model are as follows:
[0015] The output shaft of the drive motor drives the rotating shaft to rotate, which in turn drives the stirring shaft and multiple stirring blades to rotate via the synchronous belt and two synchronous pulleys. The spiral stirring blades rotate to stir and mix the plastic raw materials. During the stirring process, some raw materials leak out through the discharge port and mix again with the raw materials on the next stirring blade. This allows multiple raw materials to come into full contact and be thoroughly stirred and mixed, thus improving the stirring effect. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall main structure of a raw material mixing device for processing plastic products proposed in this utility model.
[0017] Figure 2 This is a partial cross-sectional structural diagram of a raw material mixing device for processing plastic products proposed in this utility model.
[0018] Figure 3 This is a schematic diagram of the main structure of the stirring mechanism of a raw material stirring device for processing plastic products according to the present invention.
[0019] Figure 4 This is a schematic diagram of the main structure of the transmission mechanism of a raw material mixing device for processing plastic products according to the present invention.
[0020] Figure 5 This is a front view structural diagram of the feeding mechanism of a raw material mixing device for processing plastic products according to the present invention.
[0021] Figure 6 This is a schematic diagram of the lifting component of a raw material mixing device for processing plastic products according to the present invention.
[0022] In the diagram: 1. Mixing drum; 2. Drum cover; 3. Mixing mechanism; 301. Mixing shaft; 302. Mixing blades; 303. Fixing frame; 4. Transmission mechanism; 401. Mounting frame; 402. Drive motor; 403. Rotating shaft; 5. Feeding mechanism; 501. Feed hopper; 502. Limiting ring; 503. Return spring; 504. Contact ring; 6. Lifting assembly; 601. Mounting ring; 602. Lifting plate; 603. Support ring. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] Example 1, referring to Figure 1-4 A raw material mixing device for processing plastic products includes a mixing drum 1 and a drum cover 2 bolted to the outer wall of the top of the mixing drum 1. A discharge pipe is fixed to the inner wall of the bottom of the mixing drum 1, and an electromagnetic gate valve is clamped and installed on the outer wall of one end of the discharge pipe. A mixing mechanism 3 is provided inside the mixing drum 1. The mixing mechanism 3 includes a mixing shaft 301 that passes through and is connected to the outer wall of the drum cover 2 through a bearing, and several mixing blades 302, each with several discharge ports on its outer wall. The mixing blades 302 are spiral-shaped, and several mixing blades 302 are respectively welded to the lower outer wall of the mixing shaft 301. The lower outer wall of the mixing shaft 301 is connected to the drum cover 2 through a bearing. A fixed frame 303 is attached and welded to the lower inner wall of the mixing drum 1. A transmission mechanism 4 is provided on the top of the drum cover 2. The transmission mechanism 4 includes a transmission motor 402 and a rotating shaft 403 connected to the bottom end of the output shaft of the transmission motor 402 via a coupling. A mounting bracket 401 is welded to the top outer wall of the drum cover 2. The transmission motor 402 is bolted to the top outer wall of the mounting bracket 401. The bottom end of the rotating shaft 403 is connected to the top outer wall of the drum cover 2 via a bearing. Synchronous pulleys are connected to the middle outer wall of the rotating shaft 403 and the upper outer wall of the mixing shaft 301 via splines. The two synchronous pulleys are connected by a synchronous belt to form a transmission engagement.
[0025] Example 2, refer to Figure 1 and Figure 5-6 A raw material mixing device for processing plastic products further includes two feeding mechanisms 5. Each feeding mechanism 5 includes a feed hopper 501 that penetrates and slides onto the outer wall of a cylindrical cover 2, a limiting ring 502 welded to the lower outer wall of the feed hopper 501, a return spring 503 fitted onto the lower outer wall of the feed hopper 501, and a contact ring 504 with a tapered lower outer wall. The limiting ring 502 abuts against the top outer wall of the cylindrical cover 2, the top end of the return spring 503 abuts against the bottom outer wall of the cylindrical cover 2, and the contact ring 504 is welded... A lifting assembly 6 is provided inside the mixing drum 1, attached to the bottom outer wall of the feed hopper 501. The lifting assembly 6 includes a mounting ring 601 connected to the upper outer wall of the mixing shaft 301 by a pin and several lifting plates 602 respectively welded to the outer wall of the mounting ring 601. A support ring 603 is bolted to the upper inner wall of the mixing drum 1. Several lifting plates 602 respectively abut against the top outer wall of the support ring 603 to realize the up and down movement of the feed hopper 501 and prevent the raw materials from bridging in the feed hopper 501.
[0026] Working principle: The output shaft of the drive motor 402 drives the rotating shaft 403 to rotate, which in turn drives the stirring shaft 301 and multiple stirring blades 302 to rotate via the synchronous belt and two synchronous pulleys. The spiral stirring blades 302 rotate to stir and mix the plastic raw materials. During the stirring process, some raw materials leak out through the discharge port and are mixed again with the raw materials on the next stirring blade 302. The stirring shaft 301 drives the mounting ring 601 and multiple lifting plates 602 to rotate. The lifting plates 602 squeeze the contact ring 504, causing the contact ring 504 to squeeze the return spring 503. The lifting plates 602 disengage from the contact ring, and the feed hopper 501 resets under the tension of the return spring 503, thereby realizing the up-and-down reciprocating movement of the feed hopper 501, so that the raw materials in the feed hopper 501 can fully enter the stirring drum 1.
[0027] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. A raw material mixing device for processing plastic products, comprising a mixing drum (1) and a drum cover (2) bolted to the outer wall of the top of the mixing drum (1), characterized in that, The stirring drum (1) is provided with a stirring mechanism (3), which includes a stirring shaft (301) that passes through and is connected to the outer wall of the drum cover (2) by a bearing, and a number of stirring blades (302) with a number of material leakage ports on the outer wall. The top of the cylinder cover (2) is provided with a transmission mechanism (4), which includes a transmission motor (402) and a rotating shaft (403) connected to the bottom of the output shaft of the transmission motor (402) via a coupling. The cylinder cover (2) is provided with two feeding mechanisms (5). The feeding mechanism (5) includes a feeding hopper (501) that passes through and slides on the outer wall of the cylinder cover (2), a limiting ring (502) welded to the lower outer wall of the feeding hopper (501), a return spring (503) sleeved on the lower outer wall of the feeding hopper (501), and a contact ring (504) with a tapered surface on the lower outer wall. The stirring drum (1) is provided with a lifting assembly (6), which includes a mounting ring (601) connected to the upper outer wall of the stirring shaft (301) by a pin and several lifting plates (602) respectively welded to the outer wall of the mounting ring (601).
2. The raw material mixing equipment for processing plastic products according to claim 1, characterized in that, The bottom inner wall of the mixing drum (1) is fixed with a discharge pipe, and an electromagnetic slide valve is clamped on the outer wall of one end of the discharge pipe.
3. The raw material mixing equipment for processing plastic products according to claim 1, characterized in that, Several stirring blades (302) are respectively welded to the lower outer wall of the stirring shaft (301). A fixing frame (303) is connected to the lower outer wall of the stirring shaft (301) through a bearing, and the fixing frame (303) is welded to the lower inner wall of the stirring cylinder (1).
4. The raw material mixing equipment for processing plastic products according to claim 1, characterized in that, A mounting bracket (401) is welded to the top outer wall of the cylinder cover (2), and the drive motor (402) is bolted to the top outer wall of the mounting bracket (401). The bottom end of the rotating shaft (403) is connected to the top outer wall of the cylinder cover (2) through a bearing. The middle outer wall of the rotating shaft (403) and the upper outer wall of the stirring shaft (301) are both connected to synchronous pulleys by splines, and the two synchronous pulleys are connected to each other by a synchronous belt.
5. The raw material mixing equipment for processing plastic products according to claim 1, characterized in that, The limiting ring (502) abuts against the top outer wall of the cylinder cover (2), and the top end of the reset spring (503) abuts against the bottom outer wall of the cylinder cover (2). The contact ring (504) is welded to the bottom outer wall of the feed hopper (501).
6. The raw material mixing equipment for processing plastic products according to claim 1, characterized in that, The upper inner wall of the mixing drum (1) is connected to a support ring (603) by bolts, and several lifting plates (602) respectively abut against the top outer wall of the support ring (603).