A protective structure of a feeding hopper of a spiral feeding stirring barrel for recycling plastic particles

Abstract

The utility model provides a kind of protective structure of recycling plastic particle spiral feeding stirring barrel feed hopper, including the feed channel of spiral feeding stirring barrel, feed hopper is connected on feed channel, further include protective grating, the protective grating includes hinged straight pole and support arc pole, hinged straight pole and support arc pole between connecting multiple connecting rods constitute whole, and support arc pole bends towards hinged straight pole, multiple connecting rods are evenly distributed in fan ring, and the both ends of connecting rod located in both sides are respectively connected with the end head of hinged straight pole, support arc pole corresponding, the hinged straight pole of protective grating is hinged on the inside of the outside wall of feed hopper, and below the hopper mouth of feed hopper, and the support arc pole of protective grating is supported on the sidewall of feed channel, and the protective structure of feed hopper is constituted. The utility model has simple structure, and the cost of transformation is low, and the risk that packaging bag occurs winding in feeding process can be effectively eliminated.

Description

Technical Field

[0001] This utility model relates to the field of plastics processing, and in particular to a protective structure for the feed hopper of a spiral feeding mixing tank for recycling plastic granules. Background Technology

[0002] Plastic processing companies use recycled plastic pellets (recycled materials) as raw materials. After multiple raw materials are mixed in a mixer, the mixture is fed from the mixer's discharge hopper to the extruder's receiving hopper.

[0003] See Chinese Patent CN 106426601A, which describes the applicant's current spiral-feed agitated raw material tank. This type of raw material tank allows operators to feed material from the hopper. The recycled plastic granules enter the feeding channel through a side inlet located on one side of the feeding channel, where a screw drives agitation, transferring the material to the outer cylinder for discharge. The outer wall of the hopper in this structure is an outwardly sloping surface. The outer edges of the two side walls connect to the outer wall, while the inner edges extend towards the feeding channel and connect to its side wall, resulting in a triangular hopper opening. The bottom of the hopper is connected to the side inlet below the side wall of the feeding channel.

[0004] When operators move bags containing recycled plastic granules to the feed hopper, the bag opening is located at the bottom of the feed hopper. There is a risk that the bag will get tangled on the feed screw through the side feed port, causing the raw material barrel to stop and even posing a risk of injury.

[0005] Therefore, it is necessary to design a simple protective device for this type of feed hopper to eliminate the aforementioned risks. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a protective structure for the feed hopper of a spiral feeding mixing tank for recycling plastic granules. This structure is simple, has low modification costs, and can effectively prevent the risk of packaging bags becoming entangled during the feeding process.

[0007] The technical solution of this utility model is: a protective structure for the feed hopper of a spiral feeding mixing tank for recycling plastic granules, including a feed channel of the spiral feeding mixing tank, a feed hopper connected to the feed channel, and a protective grid. The protective grid includes a hinged straight rod and a supporting arc rod. Multiple connecting rods connect the hinged straight rod and the supporting arc rod to form an integral whole. The supporting arc rod is bent toward the hinged straight rod. The multiple connecting rods are evenly distributed in a fan-shaped ring. The two ends of the connecting rods on both sides are respectively connected to the corresponding ends of the hinged straight rod and the supporting arc rod. The hinged straight rod of the protective grid is hinged to the inner side of the outer wall of the feed hopper through a hinge, and is lower than the opening of the feed hopper. The supporting arc rod of the protective grid is supported on the side wall of the feed channel, forming a protective structure for the feed hopper.

[0008] The top edge of the outer wall of the feed hopper is provided with an outwardly extending support platform, which extends upward at an angle.

[0009] The hinged straight rod, the supporting arc rod, and the multiple connecting rods are welded together to form a whole.

[0010] The number of hinges is two. Each hinge includes a ring and a screw fixed on the ring. The hinge is sleeved on the hinge rod of the protective grid through the ring. The screw of the hinge passes through the outer wall of the feed hopper and is threaded with a nut.

[0011] The hinged straight rod, supporting arc rod, and connecting rod are all made of stainless steel.

[0012] The above technical solution has the following beneficial effects: 1. The protective structure of the feed hopper of the spiral feeding mixing tank for recycled plastic granules includes a feed channel of the spiral feeding mixing tank and a feed hopper connected to the feed channel. The feed hopper is used to feed recycled plastic granules, and the feed channel is used to receive the recycled plastic granules in the feed hopper. The granules are then stirred by a matching drive screw and transferred to the outer cylinder for storage in the discharge state. It also includes a protective grid, which consists of hinged straight rods and supporting arc rods. Multiple connecting rods connect the hinged straight rods and the supporting arc rods to form a whole, with the supporting arc rods bending towards the hinged straight rods. The multiple connecting rods are evenly distributed in a fan-shaped ring, and the ends of the connecting rods on both sides are connected to the corresponding ends of the hinged straight rods and the supporting arc rods, respectively. That is, the protective grid has a fan-shaped ring grid structure with a straight long side, which is adapted to the shape of the feed area of ​​the feed hopper. The hinged straight rod of the protective grid is hinged to the inner side of the outer wall of the feed hopper via a hinge, and is lower than the opening of the feed hopper. The supporting arc rod of the protective grid is supported on the side wall of the feed channel, forming a protective structure for the feed hopper. The protective grid of this structure is suspended below the opening of the feed hopper by the hinged straight rod and the supporting arc rod, so that the packaging bag containing recycled plastic particles can be supported on the protective grid, and the recycled plastic particles can pass smoothly through the protective grid and enter the bottom of the feed hopper, where they are stirred and transferred by the matching drive screw. This can effectively prevent the packaging bag from getting tangled on the matching drive screw and also effectively reduce the intensity of manual labor.

[0013] 2. An outwardly extending support platform is provided on the top edge of the outer wall of the feed hopper. The support platform extends upward to expand the support range for packaging bags containing recycled plastic granules, reduce manual labor intensity, and avoid the risk of damage caused by partial support of the packaging bags.

[0014] 3. There are two hinges. Each hinge includes a ring and a screw fixed on the ring. The hinge is fitted onto the hinge rod of the protective grid through the ring. The screw of the hinge passes through the outer wall of the feed hopper and is threaded with a nut. This type of hinge has a simple structure, is easy and stable to install, and avoids sharp corners from scratching or tearing the packaging bag, thus meeting the actual needs of enterprises.

[0015] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Enlarged view at point M; Figure 3 This is a schematic diagram showing the cooperation between the protective grille and the feed hopper of this utility model; Figure 4 This is a schematic diagram of the assembly of the hinge and the feed hopper of this utility model.

[0017] In the attached diagram, 1 is the feeding channel, 2 is the feeding hopper, 3 is the protective grid, 31 is the hinged straight rod, 32 is the supporting arc rod, 33 is the connecting rod, 4 is the hinge, 41 is the ring, 42 is the screw, 43 is the nut, and 5 is the supporting platform. Detailed Implementation

[0018] See Figures 1 to 4This is a specific embodiment of a protective structure for the feed hopper of a spiral feeding mixing tank for recycling plastic granules. The protective structure for the feed hopper of the spiral feeding mixing tank for recycling plastic granules includes a feed channel 1 of the spiral feeding mixing tank and a feed hopper 2 connected to the feed channel 1. Both the feed channel and the feed hopper are conventional structures, and the connection structure is also a conventional connection structure. For ease of use, an outwardly extending support platform 5 is provided on the top edge of the outer wall of the feed hopper 2, and the support platform 5 extends upward at an angle. It also includes a protective grille 3, which includes a hinged straight rod 31 and a supporting arc rod 32. Multiple connecting rods 33 connect the hinged straight rod 31 and the supporting arc rod 32 to form a whole. The supporting arc rod 32 is bent toward the hinged straight rod 31. The multiple connecting rods 33 are evenly distributed in a fan-shaped ring. The two ends of the connecting rods on both sides are respectively connected to the corresponding ends of the hinged straight rod 31 and the supporting arc rod 32. In this embodiment, the hinged straight rod 31, the supporting arc rod 32 and the multiple connecting rods 33 are welded together to form a whole. The hinged straight rod 31, the supporting arc rod 32 and the connecting rods 33 are all made of stainless steel. Obviously, the shape of the protective grille is adapted to the shape of the feeding area of ​​the feed hopper. The hinged straight rod 31 of the protective grille 3 is hinged to the inner side of the outer wall of the feed hopper 2 via a hinge 4, and is lower than the opening of the feed hopper 2. In this embodiment, there are two hinges 4, each including an annular element 41 and a screw 42 fixed on the annular element 41. The hinge 4 is sleeved on the hinged straight rod 31 of the protective grille via the annular element 41, and is axially limited by two adjacent connecting rods. The screw 42 of the hinge passes through the outer wall of the feed hopper 2 and is threaded with a nut 43, which clamps it to the outer wall of the feed hopper via the nut and the annular element. The supporting arc rod 32 of the protective grille 3 is supported on the side wall of the feed channel 1, forming the protective structure of the feed hopper.

[0019] The working principle of this utility model is as follows: The packaging bag containing recycled plastic granules is manually supported on the protective grid, the bag opening is opened, and the recycled plastic granules inside the packaging bag pass through the protective grid and are put into the bottom of the feeding hopper. They are stirred and transferred by the matching drive screw, while the packaging bag is suspended and supported on the protective grid to prevent the packaging bag from getting tangled on the matching drive screw.

Claims

1. A protective structure for the feed hopper of a spiral feeding mixing tank for recycling plastic granules, comprising a feed channel (1) of the spiral feeding mixing tank and a feed hopper (2) connected to the feed channel (1), characterized in that: It also includes a protective grille (3), which includes a hinged straight rod (31) and a supporting arc rod (32). The hinged straight rod (31) and the supporting arc rod (32) are connected by multiple connecting rods (33) to form a whole. The supporting arc rod (32) bends toward the hinged straight rod (31). The multiple connecting rods (33) are evenly distributed in a fan-shaped ring. The two ends of the connecting rods on both sides are respectively connected to the corresponding ends of the hinged straight rod (31) and the supporting arc rod (32). The hinged straight rod (31) of the protective grille (3) is hinged to the inner side of the outer wall of the feed hopper (2) through the hinge (4) and is lower than the opening of the feed hopper (2). The supporting arc rod (32) of the protective grille (3) is supported on the side wall of the feed channel (1) to form the protective structure of the feed hopper.

2. The protective structure of the feed hopper of the spiral feeding mixing tank for recycled plastic granules according to claim 1, characterized in that: The top edge of the outer wall of the feed hopper (2) is provided with an outwardly extending support platform (5), which extends upward at an angle.

3. The protective structure of the feed hopper of the spiral feeding mixing tank for recycled plastic granules according to claim 1, characterized in that: The hinged straight rod (31), the supporting arc rod (32), and the multiple connecting rods (33) are welded together to form an integral whole.

4. The protective structure of the feed hopper of the spiral feeding mixing tank for recycled plastic granules according to claim 1, characterized in that: The number of the hinge (4) is two. The hinge (4) includes a ring (41) and a screw (42) fixed on the ring (41). The hinge (4) is sleeved on the hinge rod (31) of the protective grid through the ring (41). The screw (42) of the hinge passes through the outer wall of the feed hopper (2) and is threaded with a nut (43).

5. The protective structure of the feed hopper of the spiral feeding mixing tank for recycled plastic granules according to claim 1, characterized in that: The hinged straight rod (31), the supporting arc rod (32), and the connecting rod (33) are all made of stainless steel.

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