Extrusion molding device with protection device for polymer particle preparation

Abstract

The utility model discloses a polymer particle preparation extrusion molding device with a protection device, which comprises a base, a driving motor, a gearbox, a charging barrel, a rotating shaft mounted in the charging barrel, a spiral blade mounted at the rotating shaft and a die head mounted at the end part of the charging barrel, a hopper is arranged at the charging barrel, and a first coupler is connected between the driving motor and the gearbox; a second coupler is connected between the gearbox and the rotating shaft, a protection device is installed on the base and comprises a rack, a first protection cover and a second protection cover, the first protection cover is provided with a plurality of first heat dissipation holes, and the second protection cover is provided with a plurality of second heat dissipation holes. According to the extrusion molding device, the first protection cover and the second protection cover are mounted, so that the first coupling and the second coupling can be protected, adverse effects of external foreign matters on the couplings are avoided, and the safety of equipment is enhanced. When the coupler needs to be maintained, the first protection cover and the second protection cover are lifted, and therefore maintenance is convenient.

Description

Technical Field

[0001] The utility model relates to the field of extrusion devices, and more specifically to an extrusion device for preparing polymer particles with a protective device. Background Art

[0002] The extrusion device heats and plasticizes polymer material particles and extrude them through a die under pressure to form products of desired shapes and sizes. Extrusion devices are widely used in the processing of polymer materials such as plastics. In extrusion devices, couplings are usually used to connect and transmit power.

[0003] In existing extrusion devices, couplings often lack adequate protection measures, which results in dust, moisture, oil stains or other impurities easily causing adverse effects on couplings or even damage during the production process. Due to insufficient protection, key components such as couplings may need to be replaced due to frequent damage, increasing the operating cost of the equipment. Unprotected couplings may also become a hidden danger to personnel safety. Since some couplings are exposed, workers may be injured due to accidental contact. Utility Model Content

[0004] The utility model aims to overcome the defects of the prior art and provides an extrusion device for preparing polymer particles with a protective device.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an extrusion device for preparing polymer particles, comprising a base, a driving motor, a gearbox, a barrel, a rotating shaft installed in the barrel, a spiral blade installed at the rotating shaft, and a die head installed at the end of the barrel, wherein the barrel has a hopper, a first coupling is connected between the driving motor and the gearbox, and a second coupling is connected between the gearbox and the rotating shaft. The base is installed with a protective device, and the protective device includes a frame, a first protective cover installed on the frame and used to protect the first coupling, and a second protective cover installed on the frame and used to protect the second coupling. The first protective cover has a plurality of first heat dissipation holes, and the second protective cover has a plurality of second heat dissipation holes. A first rotating unit for driving the first protective cover to rise and fall, a first locking unit for locking the first protective cover, a second rotating unit for driving the second protective cover to rise and fall, and a second locking unit for locking the second protective cover are installed on the frame.

[0006] Further, the frame includes a mounting plate and a plurality of L-shaped support legs connected to the mounting plate, the L-shaped support legs are fixedly connected to the base, the first rotating unit includes a first rotating rod and a first rotating part connected to the first rotating rod, the first protective cover has a first bearing that cooperates with the first rotating rod, the bottom end of the first rotating rod has a first maintenance external thread, the mounting plate has a first maintenance threaded hole that cooperates with the first maintenance external thread, the first rotating rod has a first limiting baffle that can abut against the bottom of the mounting plate, the top of the first protective cover is equipped with a first limiting cylinder, the first limiting cylinder includes a first cylinder and a first limiting ring connected to the top end of the first cylinder, the first locking unit includes a first locking rod, a first knob fixed to the top end of the first locking rod and a first locking plate fixed to the bottom end of the first locking rod, the first locking plate extends into the first limiting cylinder, the top end of the first locking rod has a first locking external thread, and the mounting plate has a first locking threaded hole that cooperates with the first locking external thread.

[0007] The first protective cover can be temporarily fixed to the mounting plate by rotating the first rotating rod, thereby facilitating maintenance of the first coupling, and the first protective cover can be fixed to the base by rotating the first locking rod, thereby protecting the first coupling.

[0008] Further, the second rotating unit includes a second rotating rod and a second rotating part connected to the second rotating rod, the second protective cover has a second bearing that cooperates with the second rotating rod, the bottom end of the second rotating rod has a second maintenance external thread, the mounting plate has a second maintenance threaded hole that cooperates with the second maintenance external thread, the second rotating rod has a second limit baffle that can abut against the bottom of the mounting plate, the top of the second protective cover is installed with a second limit cylinder, the second limit cylinder includes a second cylinder and a second limit ring connected to the top end of the second cylinder, the second locking unit includes a second locking rod, a second knob fixed to the top end of the second locking rod, and a second locking plate fixed to the bottom end of the second locking rod, the second locking plate extends into the second limit cylinder, the top end of the second locking rod has a second locking external thread, and the mounting plate has a second locking threaded hole that cooperates with the second locking external thread; a bottom baffle is installed at the frame, and the bottom baffle can abut against the second protective cover.

[0009] The second protective cover can be temporarily fixed to the mounting plate by rotating the second rotating rod, thereby facilitating maintenance of the second coupling, and the second protective cover can be fixed to the bottom baffle by rotating the second locking rod, thereby protecting the second coupling.

[0010] Further, the first limiting cylinder and the first locking unit are each four in number, and the second limiting cylinder and the second locking unit are each two in number.

[0011] Furthermore, both the first protective cover and the second protective cover can be in a maintenance state and a protection state. In the maintenance state, the first maintenance external thread is connected to the first maintenance threaded hole, the first limit baffle and the second limit baffle both abut against the lower surface of the mounting plate, the first clamping plate abuts against the first limit ring, and the second clamping plate abuts against the second limit ring; in the protection state, the first locking external thread is connected to the first locking threaded hole, the first clamping plate abuts against the first protective cover, the first protective cover abuts against the base, the second clamping plate abuts against the second protective cover, and the second protective cover abuts against the bottom baffle.

[0012] Furthermore, the base is equipped with a motor seat, and the driving motor is installed on the motor seat.

[0013] Thereby, the installation and fixation of the drive motor is facilitated.

[0014] Furthermore, the barrel is covered with a cover shell, and the cover shell has a plurality of handles.

[0015] Thereby shielding and protecting the barrel.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The extrusion device of the present application is equipped with a first protective cover and a second protective cover, so as to protect the first and second couplings and prevent foreign matter from causing adverse effects on the couplings, thereby enhancing the safety of the equipment.

[0018] 2. In the extrusion device of the present application, when the coupling needs maintenance, the first protective cover and the second protective cover are raised, thereby facilitating maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the first and second protective covers being in a protective state;

[0020] Figure 1A This is an enlarged view of area 1A;

[0021] Figure 1B This is an enlarged view of area 1B;

[0022] Figure 1C This is an enlarged view of the 1C area;

[0023] Figure 1D This is a magnified image of the 1D area;

[0024] Figure 2 This is a schematic diagram of the first and second protective covers being in maintenance status;

[0025] Figure 2A This is an enlarged view of area 2A;

[0026] Figure 2B This is an enlarged view of area 2B;

[0027] Figure 3 It is a schematic diagram of component separation;

[0028] Figure 3A This is an enlarged view of the 3A area;

[0029] Figure 3B This is an enlarged view of area 3B.

[0030] Explanation of reference numerals: 1 base; 1.1 motor base; 2 driving motor; 3 gearbox; 3.1 first coupling; 3.2 second coupling; 4 hopper; 5 die head; 6 frame; 6.1 mounting plate; 6.2 L-shaped support leg; 6.3 first maintenance threaded hole; 6.4 first locking threaded hole; 6.5 second maintenance threaded hole; 6.6 second locking threaded hole; 6.7 bottom baffle; 7 first protective cover; 7.1 first bearing; 7.2 first limiting cylinder; 8 second protective cover; 8.1 second bearing; 8.2 second limiting Position cylinder; 9.1 first rotating rod; 9.2 first rotating part; 9.3 first maintenance external thread; 9.4 first limiting baffle; 10.1 second rotating rod; 10.2 second rotating part; 10.3 second maintenance external thread; 10.4 second limiting baffle; 11.1 first locking rod; 11.2 first knob; 11.3 first locking external thread; 11.4 first abutting plate; 12.1 second locking rod; 12.2 second knob; 12.3 second locking external thread; 12.4 second abutting plate; 13 cover. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] The utility model provides Figure 1-3BThe extrusion device for preparing polymer particles with a protective device shown in the figure comprises a base 1, a driving motor 2, a gearbox 3, a barrel, a rotating shaft installed in the barrel, a spiral blade installed at the rotating shaft, and a die head 5 installed at the end of the barrel, wherein the barrel has a hopper 4, a first coupling 3.1 is connected between the driving motor 2 and the gearbox 3, and a second coupling 3.2 is connected between the gearbox 3 and the rotating shaft, and the base 1 is installed with a protective device, and the protective device comprises a frame 6, a first protective cover 7 installed on the frame 6 and used to protect the first coupling 3.1, and a second protective cover 8 installed on the frame 6 and used to protect the second coupling 3.2, wherein the first protective cover 7 has a plurality of first heat dissipation holes, and the second protective cover 8 has a plurality of second heat dissipation holes, and a first rotating unit for driving the first protective cover 7 to rise and fall, a first locking unit for locking the first protective cover 7, a second rotating unit for driving the second protective cover 8 to rise and fall, and a second locking unit for locking the second protective cover 8 are installed on the frame 6.

[0033] The frame 6 includes a mounting plate 6.1 and a plurality of L-shaped support legs 6.2 connected to the mounting plate 6.1, the L-shaped support legs 6.2 are fixedly connected to the base 1, the first rotating unit includes a first rotating rod 9.1 and a first rotating portion 9.2 connected to the first rotating rod 9.1, the first protective cover 7 has a first bearing 7.1 matched with the first rotating rod 9.1, the bottom end of the first rotating rod 9.1 has a first maintenance external thread 9.3, the mounting plate 6.1 has a first maintenance threaded hole 6.3 matched with the first maintenance external thread 9.3, and the first rotating rod 9.1 has a first limit baffle 9 capable of abutting the bottom of the mounting plate 6.1 .4, a first limiting cylinder 7.2 is installed on the top of the first protective cover 7, the first limiting cylinder 7.2 includes a first cylinder and a first limiting ring connected to the top of the first cylinder, the first locking unit includes a first locking rod 11.1, a first knob 11.2 fixed to the top of the first locking rod 11.1 and a first locking plate 11.4 fixed to the bottom of the first locking rod 11.1, the first locking plate 11.4 extends into the first limiting cylinder 7.2, the top of the first locking rod 11.1 has a first locking external thread 11.3, and the mounting plate 6.1 has a first locking threaded hole 6.4 that matches the first locking external thread 11.3. The second rotating unit includes a second rotating rod 10.1 and a second rotating part 10.2 connected to the second rotating rod 10.1, the second protective cover 8 has a second bearing 8.1 matched with the second rotating rod 10.1, the bottom end of the second rotating rod 10.1 has a second maintenance external thread 10.3, the mounting plate 6.1 has a second maintenance threaded hole 6.5 matched with the second maintenance external thread 10.3, the second rotating rod 10.1 has a second limit baffle 10.4 that can abut the bottom of the mounting plate 6.1, the top of the second protective cover 8 is installed with a second limit cylinder 8.2, and the second limit cylinder 8.2 includes a second round The second locking unit comprises a second locking rod 12.1, a second knob 12.2 fixed to the top of the second locking rod 12.1 and a second locking plate 12.4 fixed to the bottom of the second locking rod 12.1, the second locking plate 12.4 extends into the second limiting tube 8.2, the top of the second locking rod 12.1 has a second locking external thread 12.3, the mounting plate 6.1 has a second locking threaded hole 6.6 matching the second locking external thread 12.3; a bottom baffle 6.7 is installed at the frame 6, and the bottom baffle 6.7 can abut against the second protective cover 8.The first protective cover 7 and the second protective cover 8 can both be in a maintenance state and a protection state. In the maintenance state, the first maintenance external thread 9.3 is connected to the first maintenance threaded hole 6.3, the first limit baffle 9.4 and the second limit baffle 10.4 both abut against the lower surface of the mounting plate 6.1, the first clamping plate 11.4 abuts against the first limit ring, and the second clamping plate 12.4 abuts against the second limit ring; in the protection state, the first locking external thread 11.3 is connected to the first locking threaded hole 6.4, the first clamping plate 11.4 abuts against the first protective cover 7, the first protective cover 7 abuts against the base 1, the second clamping plate 12.4 abuts against the second protective cover 8, and the second protective cover 8 abuts against the bottom baffle 6.7. The base 1 is installed with a motor seat 1.1, and the drive motor 2 is installed at the motor seat. The barrel is covered with a cover shell 13, and the cover shell has multiple handles.

[0034] Working principle: The extrusion device of the present application is equipped with a first protective cover and a second protective cover, so as to protect the first and second couplings and prevent foreign matter from causing adverse effects on the couplings, thereby enhancing the safety of the device. When the coupling needs maintenance, the first protective cover and the second protective cover are raised, so that maintenance is convenient.

[0035] During maintenance, first rotate the first knob to turn the first locking rod upward, then pull up the first rotating rod so that the first abutting plate abuts against the first limiting ring, and use the first maintenance external thread of the first rotating rod and the first maintenance threaded hole to temporarily fix the first protective cover, so as to facilitate the maintenance of the first coupling. The maintenance steps of the second coupling are the same as those of the first coupling. After the maintenance is completed, follow the reverse steps to lower the first protective cover and re-lock it at the base, and lower the second protective cover and re-lock it at the bottom baffle to ensure the safe operation of the equipment.

[0036] Although the present invention has been illustrated and described with respect to preferred embodiments, it should be understood by those skilled in the art that various changes and modifications may be made to the present invention without departing from the scope of the present invention as defined by the claims.

Claims

1. An extrusion device for preparing polymer particles with a protective device, characterized in that: It includes a base, a driving motor, a gearbox, a barrel, a rotating shaft installed in the barrel, a spiral blade installed on the rotating shaft, and a die head installed on the end of the barrel. The barrel is provided with a hopper. A first coupling is connected between the driving motor and the gearbox, and a second coupling is connected between the gearbox and the rotating shaft. The base is provided with a protective device, and the protective device includes a frame, a first protective cover installed on the frame and used to protect the first coupling, and a second protective cover installed on the frame and used to protect the second coupling. The first protective cover has a plurality of first heat dissipation holes, and the second protective cover has a plurality of second heat dissipation holes. A first rotating unit for driving the first protective cover to rise and fall, a first locking unit for locking the first protective cover, a second rotating unit for driving the second protective cover to rise and fall, and a second locking unit for locking the second protective cover are installed on the frame.

2. The extrusion device for preparing polymer particles with a protective device according to claim 1, characterized in that: The frame includes a mounting plate and a plurality of L-shaped support legs connected to the mounting plate, the L-shaped support legs being fixedly connected to the base, the first rotating unit including a first rotating rod and a first rotating portion connected to the first rotating rod, the first protective cover having a first bearing that cooperates with the first rotating rod, the bottom end of the first rotating rod having a first maintenance external thread, the mounting plate having a first maintenance threaded hole that cooperates with the first maintenance external thread, the first rotating rod having a first limiting baffle that can abut against the bottom of the mounting plate, the top of the first protective cover being equipped with a first limiting cylinder, the first limiting cylinder including a first cylinder and a first limiting ring connected to the top end of the first cylinder, the first locking unit including a first locking rod, a first knob fixed to the top end of the first locking rod and a first locking plate fixed to the bottom end of the first locking rod, the first locking plate extending into the first limiting cylinder, the top end of the first locking rod having a first locking external thread, and the mounting plate having a first locking threaded hole that cooperates with the first locking external thread.

3. The extrusion device for preparing polymer particles with a protective device according to claim 2, characterized in that: The second rotating unit includes a second rotating rod and a second rotating part connected to the second rotating rod, the second protective cover has a second bearing that cooperates with the second rotating rod, the bottom end of the second rotating rod has a second maintenance external thread, the mounting plate has a second maintenance threaded hole that cooperates with the second maintenance external thread, the second rotating rod has a second limit baffle that can abut against the bottom of the mounting plate, the top of the second protective cover is installed with a second limit cylinder, the second limit cylinder includes a second cylinder and a second limit ring connected to the top end of the second cylinder, the second locking unit includes a second locking rod, a second knob fixed to the top end of the second locking rod, and a second locking plate fixed to the bottom end of the second locking rod, the second locking plate extends into the second limit cylinder, the top end of the second locking rod has a second locking external thread, and the mounting plate has a second locking threaded hole that cooperates with the second locking external thread; a bottom baffle is installed at the frame, and the bottom baffle can abut against the second protective cover.

4. The extrusion device for preparing polymer particles with a protective device according to claim 3, characterized in that: The first limiting cylinder and the first locking unit each have four, and the second limiting cylinder and the second locking unit each have two; the first protective cover and the second protective cover can be in a maintenance state and a protection state. In the maintenance state, the first maintenance external thread is connected to the first maintenance threaded hole, and the first limiting baffle and the second limiting baffle both abut against the lower surface of the mounting plate, and the first clamping plate abuts against the first limiting ring, and the second clamping plate abuts against the second limiting ring; in the protection state, the first locking external thread is connected to the first locking threaded hole, the first clamping plate abuts against the first protective cover, the first protective cover abuts against the base, the second clamping plate abuts against the second protective cover, and the second protective cover abuts against the bottom baffle.

5. The extrusion device for preparing polymer particles with a protective device according to claim 1, characterized in that: The base is equipped with a motor seat, and the driving motor is installed on the motor seat.

6. The extrusion device for preparing polymer particles with a protective device according to claim 1, characterized in that: The barrel is covered with a cover shell, and the cover shell is provided with a plurality of handles.

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