Extrusion device for PET (Polyethylene Terephthalate) co-extrusion sheet

Abstract

The utility model relates to the technical field of extrusion devices, in particular to a PET (polyethylene terephthalate) co-extrusion sheet extrusion device which comprises an extruder body, a hopper is detachably connected onto the extruder body through a plurality of bolts, a stirring structure is arranged on the hopper and comprises a connecting frame and a motor, the connecting frame is clamped at the top end of the hopper, the motor is mounted on the connecting frame, and the motor is mounted on the motor. A rotating shaft is rotationally connected to the connecting frame, the top end of the rotating shaft is fixedly connected with an output shaft of the motor, a plurality of stirring rods are fixedly connected to the rotating shaft, a spiral piece is fixedly connected to the bottom end of the rotating shaft, and a blocking structure is arranged on the hopper; and blockage of raw materials in the hopper in the discharging process can be avoided, so that the use stability is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of extrusion equipment technology, specifically to a PET co-extruded sheet extrusion equipment. Background Technology

[0002] PET co-extrusion technology is an advanced plastics processing technology, mainly used to produce PET sheets and other related products. The main features of this technology include the use of two or three extruders to co-extrude sheets. During the extrusion process, raw materials are added to the inside of the extruder hopper, and then the raw materials enter the inside of the extruder from the inside of the extruder hopper for subsequent extrusion.

[0003] However, the raw material inside the extruder hopper falls into the extruder solely under the influence of gravity, which can easily cause blockages during the feeding process, resulting in poor stability in operation.

[0004] Therefore, there is a need to design an anti-clogging extruder that can operate more stably. Utility Model Content

[0005] To address the aforementioned issues, the PET co-extrusion sheet extrusion device provided by this invention can prevent the raw material from becoming clogged inside the hopper during the feeding process, thereby effectively improving the stability of its use.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A PET co-extruded sheet extrusion device includes an extruder body. A hopper is detachably connected to the extruder body via multiple bolts. The hopper is equipped with a stirring structure, which includes a connecting frame and a motor. The connecting frame is engaged at the top of the hopper, and the motor is mounted on the connecting frame. A rotating shaft is rotatably connected to the connecting frame. The top of the rotating shaft is fixedly connected to the output shaft of the motor. Multiple stirring rods are fixedly connected to the rotating shaft, and a spiral blade is fixedly connected to the bottom of the rotating shaft. The hopper is equipped with a blocking structure.

[0008] Optionally, in one embodiment of the present invention, the top of the hopper is provided with two slots, and the two ends of the connecting frame are respectively engaged with the two slots.

[0009] Optionally, in one embodiment of the present invention, the bottom end of the hopper is conical and the top end of the slot cross-section is trapezoidal.

[0010] Optionally, in one embodiment of the present invention, the bottom end of the hopper is provided with a plurality of mounting holes, and the bottom end of the extruder body is fixedly connected with a plurality of support legs.

[0011] Optionally, in one embodiment of the present invention, the blocking structure includes a rotating ring and a stop block. The top of the hopper is rotatably connected to the rotating ring, and two stop blocks are fixedly connected to the rotating ring. The two stop blocks respectively abut against the two ends of the connecting frame.

[0012] Optionally, in one embodiment of the present invention, a plug rod is slidably connected to the rotating ring, and one end of the plug rod is engaged with the hopper.

[0013] Optionally, in one embodiment of the present invention, a return spring is sleeved on the outside of the insertion rod, one end of the return spring is fixedly connected to the insertion rod, and the other end of the return spring is fixedly connected to the rotating ring.

[0014] Optionally, in one embodiment of the present invention, the cross-section of one end of the insertion rod is trapezoidal, the cross-section of the other end of the insertion rod is T-shaped, and the cross-section of the stop block is L-shaped.

[0015] Beneficial effects of this utility model

[0016] This utility model relates to a PET co-extrusion sheet extrusion device. During use, raw materials can be added into the hopper. During the feeding process, the motor can be started, and the output shaft of the motor rotates, driving the rotating shaft to rotate. The rotation of the rotating shaft drives multiple stirring rods to rotate, and at the same time, it drives the spiral blades to rotate. The rotation of multiple stirring rods and spiral blades can achieve stable feeding of raw materials, avoiding blockage of raw materials inside the hopper during the feeding process, thereby effectively improving the stability of use. When the blocking structure does not block the connecting frame, the connecting frame can be removed from the top of the hopper. After the connecting frame is removed, it is convenient to clean the inside of the hopper, as well as the stirring rods and spiral blades, making it more convenient to use. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the connection structure between the extruder body and the hopper of this utility model;

[0020] Figure 3 for Figure 2 The enlarged schematic diagram of part A shown below;

[0021] Figure 4 This is a schematic diagram of the connection structure between the hopper and the slot of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Extruder body; 2. Hopper; 3. Stirring structure; 301. Connecting frame; 302. Motor; 303. Rotating shaft; 304. Stirring rod; 305. Spiral blade; 306. Slot; 4. Block; 401. Rotating ring; 402. Stop block; 403. Insert rod; 404. Return spring; 5. Mounting hole; 6. Support leg. Detailed Implementation

[0023] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments. Example

[0024] To prevent clogging and improve equipment stability, a PET co-extrusion sheet extrusion device was designed, and the specific scheme is as follows:

[0025] like Figure 1 , 2 As shown in Figure 4, the PET co-extruded sheet extrusion device includes an extruder body 1. A hopper 2 is detachably connected to the extruder body 1 by multiple bolts. A stirring structure 3 is provided on the hopper 2. The stirring structure 3 includes a connecting frame 301 and a motor 302. The connecting frame 301 is engaged at the top of the hopper 2. The motor 302 is installed on the connecting frame 301. A rotating shaft 303 is rotatably connected to the connecting frame 301. The top of the rotating shaft 303 is fixedly connected to the output shaft of the motor 302. Multiple stirring rods 304 are fixedly connected to the rotating shaft 303. A spiral blade 305 is fixedly connected to the bottom of the rotating shaft 303. A blocking structure 4 is provided on the hopper 2.

[0026] like Figure 1 and Figure 4 As shown, the top of the hopper 2 is provided with two slots 306. The two ends of the connecting frame 301 are respectively engaged with the two slots 306, so the connecting frame 301 can be positioned through the slots 306.

[0027] like Figure 4 As shown, the bottom of the hopper 2 has a conical structure, and the top of the groove 306 has a trapezoidal structure, which makes it easy for the raw material to fall from the inside of the hopper 2 into the inside of the extruder body 1.

[0028] like Figure 1 and Figure 2 As shown, the bottom end of the hopper 2 is provided with multiple mounting holes 5, and the bottom end of the extruder body 1 is fixedly connected with multiple support legs 6. Therefore, the hopper 2 can be installed on the extruder body 1 through the multiple mounting holes 5 and bolts.

[0029] like Figure 1 , Figure 2 and Figure 3As shown, the blocking structure 4 includes a rotating ring 401 and a stop block 402. The rotating ring 401 is rotatably connected to the top of the hopper 2. Two stop blocks 402 are fixedly connected to the rotating ring 401. The two stop blocks 402 abut against the two ends of the connecting frame 301 respectively. A plug rod 403 is slidably connected to the rotating ring 401. One end of the plug rod 403 is engaged with the hopper 2. A return spring 404 is sleeved on the outside of the plug rod 403. One end of the return spring 404 is fixedly connected to the plug rod 403, and the other end of the return spring 404 is fixedly connected to the rotating ring 401. Therefore, it can block the connecting frame 301, thereby preventing the connecting frame 301 from detaching from the top of the hopper 2.

[0030] like Figure 3 As shown, the cross-section of one end of the insertion rod 403 is trapezoidal, the cross-section of the other end of the insertion rod 403 is T-shaped, and the cross-section of the stop block 402 is L-shaped. Therefore, it can play a guiding role when the insertion rod 403 is engaged with the hopper 2.

[0031] Working principle:

[0032] During use, raw materials can be added into the hopper 2. The motor 302 is started during feeding, and its output shaft rotates, driving the rotating shaft 303. The rotating shaft 303 then drives multiple stirring rods 304 and the spiral blades 305 to rotate. This rotation of the stirring rods 304 and spiral blades 305 ensures stable feeding of the raw materials, preventing blockages inside the hopper 2 and effectively improving operational stability. Furthermore, the hopper 2 can be easily cleaned. By pulling the insert rod 403, the return spring 404 extends. When one end of the insert rod 403 is not engaged with the hopper 2, the rotating ring 401 can be rotated. The rotating ring 401 drives the two stop blocks 402 to rotate. When the two stop blocks 402 no longer block the two ends of the connecting frame 301, the rotation of the rotating ring 401 can be stopped. Then the connecting frame 301 can be removed from the top of the hopper 2. After the connecting frame 301 is removed, it is convenient to clean the inside of the hopper 2, and also convenient to clean the stirring rod 304 and the spiral blade 305, thus making it more convenient to use.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. PET co-extruded sheet extrusion apparatus comprising an extruder body, characterized by the fact that: The hopper is detachably connected to the extruder body by a plurality of bolts, the hopper is provided with a stirring structure, the stirring structure comprises a connecting frame and a motor, the top end of the hopper is clamped with a connecting frame, the connecting frame is provided with a motor, the connecting frame is rotatably connected with a rotating shaft, the top end of the rotating shaft is fixedly connected with the output shaft of the motor, a plurality of stirring rods are fixedly connected to the rotating shaft, the bottom end of the rotating shaft is fixedly connected with a spiral blade, and the hopper is provided with a resisting structure.

2. The PET co-extruded sheet extrusion apparatus of claim 1, wherein: The top end of the hopper is provided with two clamping grooves, and the two ends of the connecting frame are clamped with the two clamping grooves respectively.

3. The PET co-extruded sheet extrusion apparatus of claim 2, wherein: The bottom end of the hopper is of a conical structure, and the top end of the cross section of the clamping groove is of a trapezoidal structure.

4. The PET co-extruded sheet extrusion apparatus of claim 1, wherein: The bottom end of the hopper is provided with a plurality of mounting holes, and the bottom end of the extruder body is fixedly connected with a plurality of supporting legs.

5. The PET co-extruded sheet extrusion apparatus of claim 4, wherein: The resisting structure comprises a rotating ring and a block, the top end of the hopper is rotatably connected with a rotating ring, the rotating ring is fixedly connected with two blocks, and the two blocks are in contact with the two ends of the connecting frame respectively.

6. The PET co-extruded sheet extrusion apparatus of claim 5, wherein: The rotating ring is slidably connected with a plug rod, and one end of the plug rod is clamped with the hopper.

7. The PET co-extruded sheet extrusion apparatus of claim 6, wherein: The plug rod is externally provided with a reset spring, one end of the reset spring is fixedly connected with the plug rod, and the other end of the reset spring is fixedly connected with the rotating ring.

8. The PET co-extruded sheet extrusion apparatus of claim 6, wherein: The cross section of one end of the plug rod is of a trapezoidal structure, the cross section of the other end of the plug rod is of a T-shaped structure, and the cross section of the block is of an L-shaped structure.

Images