Mixer for PVC drain pipe production

Abstract

The utility model relates to the technical field of PVC (polyvinyl chloride) drain pipe production, in particular to a mixer for PVC drain pipe production. The overturning assembly and the stirring assembly are arranged in the stirring bin, the stirring assembly comprises a hollow stirring rod rotationally connected to the interior of the stirring bin, and a spiral blade is fixedly installed at one end of the hollow stirring rod; the adjusting assembly is arranged in the hollow stirring rod. According to the stirring device disclosed by the utility model, the plurality of spiral blades are moved to the position close to the lower part of the stirring bin through the adjusting assembly, so that the stirring blades only mix raw materials from the bottom, the raw materials are gathered and mixed at the bottom, and the heat gathering speed is accelerated; the spiral blades are attached to the stirring bin to rotate to upwards raise and disperse materials, the materials are rapidly cooled, two mixing modes of hot mixing and cold mixing are achieved through one stirring bin, the occupied area of the stirring bin is reduced, and the cost of mixing equipment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of PVC drainage pipe production, in particular to a mixer for PVC drainage pipe production. Background Art

[0002] The mixing process is a crucial step in the production of PVC drainage pipes, which directly affects the quality of the pipes. The mixing process needs to be hot mixed. The mixture is heated to a certain temperature so that the PVC resin and various additives are fully mixed to form a uniform mixture to promote the gelation and pre-plasticization of the material. The hot mixed material then needs to be cooled in a cold mixer to prevent the material from absorbing moisture or degrading at high temperatures.

[0003] When the materials are hot mixed, the stirring blades are located at the bottom, so that the raw materials are gathered at the bottom for stirring and hot mixing, and the heat is concentrated between the raw materials. When cold mixed, the materials are stirred horizontally, and the spiral blades that fit the mixing bin are used to lift the materials upward and disperse them, so that they can be quickly cooled. Hot mixing and cold mixing are usually mixed separately in two mixing bins. The two mixing bins occupy a large area and are driven to rotate by two power components at the same time, which is costly. It is not convenient to achieve both hot mixing and cold mixing through one mixing bin. Utility Model Content

[0004] The purpose of the utility model is to provide a mixer for producing PVC drainage pipes to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] Mixing machine for PVC drainage pipe production, including:

[0007] Mixing chamber;

[0008] A flip assembly is arranged inside the mixing bin, and the flip assembly includes a support frame for supporting the mixing bin, and electric push rods are symmetrically fixedly installed on both sides of the support frame;

[0009] A stirring assembly is arranged inside the stirring chamber, the stirring assembly comprises a hollow stirring rod rotatably connected to the stirring chamber, a plurality of slide grooves are evenly spaced on the outer surface of the hollow stirring rod, a plurality of square tubes are evenly spaced inside the slide grooves, a hollow extension rod is slidably connected inside the square tube, and a spiral blade is fixedly mounted on one end of the hollow extension rod;

[0010] The adjusting component is arranged inside the hollow stirring rod.

[0011] Furthermore, the upper end surface of the mixing bin is fixedly connected with a feed valve, the lower end surface of the mixing bin is fixedly connected with a discharge valve, and the outer side surface of the mixing bin is alternately wound with circulating water coils and heating coils.

[0012] Further, two rotating shafts rotatably connected to the support frame are symmetrically and fixedly installed on the outer surface of the mixing bin. The output end of the electric push rod is fixedly installed with a rack. Limit frames slidably fitted with the rack are fixedly installed on both side surfaces of the support frame. One end of the rotating shaft is fixedly installed with a gear meshing and driving with the rack.

[0013] Further, a first motor for driving the hollow stirring rod to rotate is fixedly installed on the lower surface of the mixing bin.

[0014] Further, the adjusting assembly includes:

[0015] A square rod rotatably connected inside the hollow stirring rod;

[0016] A plurality of protective shells movably sleeved outside the square rod;

[0017] A rotating ring rotatably connected to both side surfaces of the protective shell and slidably connected to the square rod;

[0018] A second motor fixedly installed at the upper end inside the hollow stirring rod for driving the square rod to rotate.

[0019] Preferably, a multi-stage electric push rod is fixedly and penetratingly connected to the outer surface of the uppermost protective shell. Each telescopic rod of the multi-stage electric push rod is fixedly and penetratingly connected to the protective shell at the corresponding position. One end of the square tube penetrates through the sliding groove and is fixedly connected to the adjacent protective shell.

[0020] Preferably, a first bevel gear is slidably connected inside the protective shell on the outer side of the square rod. A lead screw is screwed at one end inside the hollow extension rod. One end of the lead screw penetrates through the square tube and is rotatably connected to the square tube. A second bevel gear meshing and driving with the first bevel gear is fixedly installed at one end of the lead screw.

[0021] Compared with the prior art, the beneficial effects of the present utility model are:

[0022] 1. The heating coil is used to heat the mixing bin to raise the temperature inside the mixing bin for hot mixing. The circulating water coil is externally connected to a cooling water device through a hose, so that the cooling water flows through the circulating water coil to cool the inside of the mixing bin for cold mixing. The electric push rod extends to push the rack to move, so as to drive the gear to rotate, drive the rotating shaft and the mixing bin to rotate. When the mixing bin is rotated to the vertical state, hot mixing is carried out. When the mixing bin is rotated to the horizontal state, cold mixing is carried out.

[0023] 2. During hot mixing, the multi-stage electric push rod is extended and retracted, so that multiple spiral blades gather at the bottom of the mixing chamber. At the same time, the No. 2 motor runs to drive the square rod to rotate. At this time, the square rod drives the No. 1 bevel gear to rotate. Through meshing transmission, the No. 2 bevel gear drives the screw rod to rotate, so that the hollow extension rod slides into the square tube, so that the spiral blades do not contact the inner wall of the mixing chamber, reducing the friction resistance when it rotates quickly, so that the spiral blades only mix the raw materials from the bottom, so that the raw materials gather and mix at the bottom, and accelerate the heat accumulation speed.

[0024] 3. During cold mixing, the multi-stage electric push rod extends and resets, causing the multiple spiral blades to spread out and reset, and then the No. 2 motor reverses to make the spiral blades fit the inner wall of the mixing chamber. This increases the distance between the multiple spiral blades, flips the mixing chamber, and makes the spiral blades fit the mixing chamber and rotate to lift the material upward and spread it, causing it to cool down quickly. Both hot mixing and cold mixing can be achieved through one mixing chamber, reducing the floor space of the mixing chamber and reducing the cost of mixing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 This is a schematic diagram of the internal structure of the mixing bin in the utility model;

[0027] Figure 3 It is a schematic diagram of the vertical cross-section structure of the stirring component part in the utility model;

[0028] Figure 4 It is a schematic diagram of the vertical cross-section structure of the adjustment component in the utility model;

[0029] Figure 5 It is a partial structural schematic diagram of the flip assembly in the utility model.

[0030] In the figure: 1. Mixing bin; 101. Feed valve; 102. Discharge valve; 103. Rotating shaft; 104. Circulating water coil; 105. Heating coil; 2. Flipping assembly; 201. Support frame; 202. Electric push rod; 203. Rack; 204. Limiting frame; 205. Gear; 3. Mixing assembly; 301. Hollow mixing rod; 302. Motor No. 1; 303. Slide; 304. Square tube; 305. Hollow extension rod; 306. Spiral blade; 4. Adjusting assembly; 401. Square rod; 402. Protective shell; 403. Bevel gear No. 1; 404. Rotating ring; 405. Bevel gear No. 2; 406. Screw; 407. Multi-stage electric push rod; 408. Motor No. 2. DETAILED DESCRIPTION

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0032] Please refer to Figures 1-5 , in the embodiment of the present utility model, a mixing machine for producing PVC drain pipes includes: a mixing bin 1, a flipping assembly 2 is arranged inside the mixing bin 1, the flipping assembly 2 includes a support frame 201 for supporting the mixing bin 1, electric push rods 202 are symmetrically and fixedly installed on both side surfaces of the support frame 201, a mixing assembly 3 is arranged inside the mixing bin 1, the mixing assembly 3 includes a hollow mixing rod 301 rotatably connected inside the mixing bin 1, a plurality of sliding grooves 303 are equidistantly arranged on the outer surface of the hollow mixing rod 301, a plurality of square pipes 304 are equidistantly arranged inside the sliding grooves 303, a hollow extension rod 305 is slidably connected inside the square pipe 304, and a spiral blade 306 is fixedly installed at one end of the hollow extension rod 305, and an adjusting assembly 4 is arranged inside the hollow mixing rod 301.

[0033] Specifically, the flipping assembly 2 flips the mixing bin 1 to an upright or horizontal state, so that the mixing bin 1 is in different mixing states. The mixing assembly 3 is adjusted by the adjusting assembly 4 to make the plurality of spiral blades 306 gather or disperse, respectively performing two kinds of mixing: hot mixing and cold mixing.

[0034] Embodiment 1

[0035] As Figure 2 shown, in this embodiment, a first motor 302 for driving the hollow mixing rod 301 to rotate is fixedly installed on the lower surface of the mixing bin 1.

[0036] In this embodiment, the first motor 302 operates to drive the hollow mixing rod 301 to rotate, so that the plurality of spiral blades 306 rotate to stir the raw materials.

[0037] As Figure 1 , Figure 2 and Figure 5As shown, in this embodiment, the upper end surface of the mixing bin 1 is fixedly connected to a feed valve 101, the lower end surface of the mixing bin 1 is fixedly connected to a discharge valve 102, and the outer surface of the mixing bin 1 is staggered with circulating water coils 104 and heating coils 105; two rotating shafts 103 rotatably connected to the support frame 201 are symmetrically fixedly installed on the outer surface of the mixing bin 1, a rack 203 is fixedly installed on the output end of the electric push rod 202, and limit frames 204 slidingly fitted with the rack 203 are fixedly installed on both side surfaces of the support frame 201, and a gear 205 meshing with the rack 203 is fixedly installed at one end of the rotating shaft 103.

[0038] During specific implementation, material is added and discharged through the feed valve 101 and the discharge valve 102, the heating coil 105 is used to heat the mixing bin 1, so that the temperature inside the mixing bin 1 rises and hot mixing is performed, the circulating water coil 104 is connected to an external cooling water device through a hose, so that cooling water flows through the circulating water coil 104, so as to cool the inside of the mixing bin 1 and perform cold mixing, the electric push rod 202 extends, pushes the rack 203 to move, and causes the rubbing gear 205 to rotate, thereby driving the rotating shaft 103 and the mixing bin 1 to rotate, and when the mixing bin 1 is rotated to a vertical state, hot mixing is performed, and when the mixing bin 1 is rotated to a horizontal state, cold mixing is performed.

[0039] like Figure 3 and Figure 4 As shown, in this embodiment, the adjustment component 4 includes: a square rod 401 rotatably connected to the inside of the hollow stirring rod 301, a plurality of protective shells 402, which are movably sleeved on the outside of the square rod 401, a swivel 404 rotatably connected to the two side surfaces of the protective shell 402, and slidably connected to the square rod 401, and a second motor 408 is fixedly installed at the upper end of the hollow stirring rod 301, and is used to drive the square rod 401 to rotate; a multi-stage electric push rod 407 is fixedly connected to the outer surface of the protective shell 402 located at the top, and the multi-stage electric push rod 407 is fixedly penetrated and connected. Each level of telescopic rod 7 is fixedly connected with the protective shell 402 at the corresponding position, and one end of the square tube 304 passes through the slide groove 303 and is fixedly connected with the adjacent protective shell 402; the outer side of the square rod 401 is located inside the protective shell 402 and is slidably connected with a first bevel gear 403, and one end of the hollow extension rod 305 is screwed and connected with a screw rod 406, one end of the screw rod 406 passes through the square tube 304 and is rotatably connected with the square tube 304, and one end of the screw rod 406 is fixedly installed with a second bevel gear 405 meshing with the first bevel gear 403.

[0040] In specific implementation, the multiple square tubes 304 located at the bottom are fixedly connected to the slide groove 303. During hot mixing, the multi-stage electric push rod 407 is extended and retracted, driving the protective shell 402 connected thereto to slide and gather along the square rod 401, so that the multiple spiral blades 306 gather at the bottom of the mixing bin 1. At the same time, the No. 2 motor 408 is operated to drive the square rod 401 to rotate. Through the rotation of the swivel 404 and the protective shell 402 and the sliding of the square rod 401, and under the limitation of the square tube 304 and the slide groove 303, the square rod 401 drives the swivel 404 to rotate, so that the protective shell 402 does not rotate. At this time, the square rod 401 drives the No. 1 bevel gear 403 to rotate, and through the meshing transmission, the No. 2 bevel gear 405 drives the screw rod 406 to rotate, and through the screw rod 406 and the hollow extension rod 305, and the hollow extension rod 305 and the square tube 30 4, the hollow extension rod 305 slides into the square tube 304, so that the spiral blade 306 does not contact the inner wall of the mixing chamber 1, reducing the friction resistance when it rotates quickly, so that the spiral blade 306 only mixes the raw materials from the bottom, so that the raw materials are gathered and mixed at the bottom, and the heat accumulation speed is accelerated. During cold mixing, the multi-stage electric push rod 407 extends and resets, so that the multiple spiral blades 306 are dispersed and reset, and then the second motor 408 is reversed to make the spiral blade 306 fit the inner wall of the mixing chamber 1, thereby pulling the distance between the multiple spiral blades 306, turning the mixing chamber 1, and making the spiral blade 306 fit the mixing chamber 1 and rotate to lift the material upward and disperse it, so that it can be quickly cooled down, and two mixing methods of hot mixing and cold mixing can be realized through one mixing chamber 1, reducing the floor space of the mixing chamber 1 and reducing the cost of the mixing equipment.

[0041] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0042] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. Mixing machine for producing PVC drain pipes, characterized in that, Comprising: A stirring bin (1); A flipping assembly (2), arranged inside the stirring bin (1), the flipping assembly (2) includes a support frame (201) for supporting the stirring bin (1), and electric push rods (202) are symmetrically and fixedly installed on both side surfaces of the support frame (201); A stirring assembly (3), arranged inside the stirring bin (1), the stirring assembly (3) includes a hollow stirring rod (301) rotatably connected inside the stirring bin (1), a plurality of sliding grooves (303) are equidistantly arranged on the outer surface of the hollow stirring rod (301), a plurality of square tubes (304) are equidistantly arranged inside the sliding grooves (303), a hollow extension rod (305) is slidably connected inside the square tube (304), and a spiral blade (306) is fixedly installed at one end of the hollow extension rod (305); An adjusting assembly (4), arranged inside the hollow stirring rod (301).

2. The mixer for producing PVC drain pipes according to claim 1, wherein, The upper surface of the stirring bin (1) is fixedly communicated with a feed valve (101), the lower surface of the stirring bin (1) is fixedly communicated with a discharge valve (102), and a circulating water coil pipe (104) and a heating coil pipe (105) are alternately wound on the outer surface of the stirring bin (1).

3. The mixer for producing PVC drain pipes according to claim 1, wherein Two rotating shafts (103) rotatably connected to the support frame (201) are symmetrically and fixedly installed on the outer surface of the stirring bin (1), a rack (203) is fixedly installed at the output end of the electric push rod (202), limiting frames (204) slidably fitted with the rack (203) are fixedly installed on both side surfaces of the support frame (201), and a gear (205) meshing and driving with the rack (203) is fixedly installed at one end of the rotating shaft (103).

4. The mixer for producing PVC drain pipes according to claim 1, wherein, A first motor (302) for driving the hollow stirring rod (301) to rotate is fixedly installed on the lower surface of the stirring bin (1).

5. The mixer for producing PVC drain pipes according to claim 1, characterized in that, The adjusting assembly (4) includes: A square rod (401), rotatably connected inside the hollow stirring rod (301); A plurality of protective shells (402), movably sleeved on the outer side of the square rod (401); A rotating ring (404), rotatably connected to both side surfaces of the protective shell (402) and slidably connected to the square rod (401); A second motor (408), fixedly installed at the upper end inside the hollow stirring rod (301) for driving the square rod (401) to rotate.

6. The mixer for producing PVC drain pipes according to claim 5, characterized in that, A multi-stage electric push rod (407) is fixedly and penetratingly connected to the outer surface of the uppermost protective shell (402), each stage of telescopic rod of the multi-stage electric push rod (407) is fixedly and penetratingly connected to the corresponding protective shell (402), and one end of the square tube (304) penetrates through the sliding groove (303) and is fixedly connected to the adjacent protective shell (402).

7. The mixer for producing PVC drain pipes according to claim 5, wherein A first bevel gear (403) is slidably connected inside the protective shell (402) on the outer side of the square rod (401), a lead screw (406) is screwed at one end inside the hollow extension rod (305), one end of the lead screw (406) penetrates through the square tube (304) and is rotatably connected to the square tube (304), and a second bevel gear (405) meshing and driving with the first bevel gear (403) is fixedly installed at one end of the lead screw (406).

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