Preheating device for plastic product production

Abstract

The utility model discloses a preheating device for plastic product production, which comprises a support frame, a mounting groove is vertically formed in the support frame, a support plate is slidably mounted in the mounting groove, a processing barrel is fixedly mounted on the support plate in a penetrating manner, and a discharge port is fixedly mounted at the bottom end of the processing barrel; when the device is used, a worker can start a first motor to drive a rotating shaft to rotate, so that a spiral scraping plate, a stirring rod and a spiral auger are driven to rotate synchronously, a first electric heating pipe is electrified and heated while the first motor is started, and the stirring rod heats plastic while stirring, so that heating is more uniform; and when the first motor rotates forwards, a spiral scraper and a spiral auger can turn over plastic at the bottom upwards, so that uniform heating of the plastic is further enhanced, and then during discharging, the first motor is controlled to rotate backwards, and the situation that the plastic is blocked is reduced through rotation of the spiral scraper and the spiral auger.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic product production, in particular to a preheating device for plastic product production. Background Art

[0002] Plastic products are made of plastic, which are high molecular compounds formed by addition polymerization or condensation polymerization, commonly known as plastics or resins. They can freely change their composition and shape. They are composed of synthetic resins and fillers, plasticizers, stabilizers, lubricants, colorants and other additives. When processing plastic products, the plastic raw materials need to be melted in order to achieve the molding effect.

[0003] However, many existing preheating devices for plastic product production generally use basic electric heating to preheat plastic products, which makes the preheating efficiency low and cannot ensure the uniformity of heating. In addition, when the melted plastic products are discharged, there is no corresponding discharge mechanism, which makes the plastic easy to condense during extrusion, thereby causing blockage of the discharge port and the extruder.

[0004] Therefore, the utility model provides a preheating device for producing plastic products to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a preheating device for producing plastic products, which solves the above problems.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a preheating device for the production of plastic products, comprising a support frame, a mounting groove is vertically opened on the support frame, a support plate is slidably installed inside the mounting groove, a processing barrel is fixedly installed on the support plate, a discharge port is fixedly installed at the bottom end of the processing barrel, a feed port is fixedly installed on the left side of the top of the processing barrel, a first motor is fixedly installed at the middle position of the top of the processing barrel, a rotating shaft is fixedly connected to the output end of the first motor, the bottom end of the rotating shaft extends to the inside of the discharge port, a spiral scraper is fixedly installed on the rotating shaft, the outer wall of the spiral scraper is in contact with the inner wall of the processing barrel, two groups of stirring rods are fixedly installed on the rotating shaft, a first cavity is opened inside the rotating shaft, a second cavity is opened inside the two groups of stirring rods, the two groups of the second cavities are communicated with the first cavity, and a first electric heating tube is fixedly installed inside the first cavity.

[0007] Preferably, a spiral auger is fixedly mounted on the bottom end of the outer wall of the rotating shaft, and the outer wall of the spiral auger is in contact with the inner wall of the discharge port.

[0008] Preferably, an exhaust pipe is fixedly installed on the top of the processing barrel, and an activated carbon adsorption layer is fixedly installed inside the exhaust pipe.

[0009] Preferably, a third cavity is opened inside the barrel wall of the processing barrel, and a plurality of groups of second electric heating tubes are fixedly installed inside the third cavity. A fourth cavity is also opened inside the barrel wall of the processing barrel on the outside of the third cavity, and a thermal insulation cotton layer is fixedly installed inside the fourth cavity.

[0010] Preferably, a second motor is fixedly installed on the top of the support frame, a threaded rod is fixedly connected to the output end of the second motor, the other end of the threaded rod is rotatably connected to the bottom end of the mounting groove, the threaded rod is threadedly connected to the support plate, and two groups of guide rods are vertically fixedly installed inside the mounting groove, and both groups of guide rods are slidably connected to the support plate.

[0011] Preferably, an extruder is fixedly mounted at the bottom end of the discharge port, and rubber pads are fixedly mounted at the four corners of the bottom end of the support frame.

[0012] Beneficial Effects

[0013] The utility model provides a preheating device for the production of plastic products. Compared with the prior art, it has the following beneficial effects:

[0014] When using the device, the staff can start the first motor to drive the rotating shaft to rotate, thereby driving the spiral scraper, the stirring rod and the spiral auger to rotate synchronously. When the first motor is started, the first electric heating tube is energized to increase the temperature. The stirring rod heats the plastic while stirring, thereby making the heating more uniform. When the first motor rotates forward, the spiral scraper and the spiral auger can flip the plastic at the bottom upward, thereby further enhancing the uniform heating of the plastic. Then, when unloading, the first motor is controlled to reverse, and the rotation of the spiral scraper and the spiral auger reduces the occurrence of plastic blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 3 This utility model Figure 2 The enlarged structural diagram at A in the middle;

[0018] Figure 4 This utility model Figure 2 Enlarged structural diagram at B in the middle.

[0019] In the figure, 1, support frame; 2, mounting groove; 3, support plate; 4, processing barrel; 5, discharge port; 6, first motor; 7, rotating shaft; 8, spiral scraper; 9, stirring rod; 10, first cavity; 11, second cavity; 12, first electric heating tube; 13, spiral auger; 14, extruder; 15, feed port; 16, exhaust pipe; 17, activated carbon adsorption layer; 18, third cavity; 19, second electric heating tube; 20, fourth cavity; 21, thermal insulation cotton layer; 22, second motor; 23, threaded rod; 24, guide rod; 25, rubber pad. DETAILED DESCRIPTION

[0020] 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.

[0021] Embodiment 1:

[0022] See also Figure 1-4 A preheating device for the production of plastic products comprises a support frame 1, a mounting groove 2 is vertically opened on the support frame 1, a support plate 3 is slidably installed inside the mounting groove 2, a processing barrel 4 is fixedly installed on the support plate 3, a discharge port 5 is fixedly installed at the bottom of the processing barrel 4, a feed port 15 is fixedly installed on the left side of the top of the processing barrel 4, a first motor 6 is fixedly installed at the middle position of the top of the processing barrel 4, a rotating shaft 7 is fixedly connected to the output end of the first motor 6, the bottom end of the rotating shaft 7 extends to the inside of the discharge port 5, a spiral scraper 8 is fixedly installed on the rotating shaft 7, the outer wall of the spiral scraper 8 is in contact with the inner wall of the processing barrel 4, and a first motor 6 is fixedly installed on the rotating shaft 7. Two groups of stirring rods 9 are equipped, a first cavity 10 is opened inside the rotating shaft 7, a second cavity 11 is opened inside the two groups of stirring rods 9, the two groups of second cavities 11 are connected to the first cavity 10, a first electric heating tube 12 is fixedly installed inside the first cavity 10, a spiral auger 13 is fixedly installed at the bottom end of the outer wall of the rotating shaft 7, the outer wall of the spiral auger 13 is in contact with the inner wall of the discharge port 5, an exhaust pipe 16 is fixedly installed on the top of the processing barrel 4, an activated carbon adsorption layer 17 is fixedly installed inside the exhaust pipe 16, an extruder 14 is fixedly installed at the bottom end of the discharge port 5, and rubber pads 25 are fixedly installed at the four corners of the bottom end of the support frame 1.

[0023] When using the device, the staff simultaneously starts the first motor 6 and energizes the first electric heating tube 12, thereby driving the stirring rod 9 fixedly installed on the rotating shaft 7 to heat and stir the plastic raw material, so that the heating is more uniform. While the rotating shaft 7 rotates, it simultaneously drives the spiral scraper 8 and the spiral auger 13 to rotate. While the spiral scraper 8 rotates, it can scrape off the plastic adhering to the inner wall of the processing barrel 4. The rotation of the spiral auger 13 can flip the plastic at the bottom upward, thereby further enhancing the uniform heating of the plastic. After the preheating of the plastic by the device is completed, when it is necessary to discharge and extrude the material, the staff can start the first motor 6 to reverse it, so that the spiral scraper 8 and the spiral auger 13 are reversed, so that while the plastic adhering to the inner wall of the processing barrel 4 can be pushed downward, the reversal of the spiral auger 13 also reduces the occurrence of plastic blockage at the discharge port 5.

[0024] Embodiment 2:

[0025] See also Figure 1-4 This embodiment provides a technical solution based on the first embodiment: a third cavity 18 is opened inside the barrel wall of the processing barrel 4, and a plurality of groups of second electric heating tubes 19 are fixedly installed inside the third cavity 18. A fourth cavity 20 is also opened inside the barrel wall of the processing barrel 4 on the outside of the third cavity 18, and a heat preservation cotton layer 21 is fixedly installed inside the fourth cavity 20. A second motor 22 is fixedly installed on the top of the support frame 1, and a threaded rod 23 is fixedly connected to the output end of the second motor 22. The other end of the threaded rod 23 is rotatably connected to the bottom end of the mounting groove 2, and the threaded rod 23 is threadedly connected to the support plate 3. Two groups of guide rods 24 are also vertically fixedly installed inside the mounting groove 2, and the two groups of guide rods 24 are both slidably connected to the support plate 3.

[0026] The staff energizes the second electric heating tube simultaneously with the first electric heating tube 12, so that the inner wall of the processing barrel 4 can be heated, thereby improving the heating efficiency of the device for the plastic. In addition, the heat preservation cotton layer 21 is arranged inside the fourth cavity 20, so that the heat of the processing barrel 4 is not easily lost, thereby reducing the heating energy consumption of the device. In addition, the setting of the activated carbon adsorption layer 17 of the device can filter the toxic gas generated when the plastic is heated, thereby making the practicality of the device higher. Finally, the staff can start the second motor 22 to drive the threaded rod 23 to rotate, thereby driving the support plate 3 to slide inside the mounting groove 2, thereby adjusting the height of the extruder 14, thereby meeting different extrusion height requirements when unloading, and further improving the practicality of the device.

[0027] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A preheating device for producing plastic products, comprising a support frame (1), characterized in that: The support frame (1) is vertically provided with a mounting groove (2), a supporting plate (3) is slidably mounted inside the mounting groove (2), a processing barrel (4) is fixedly mounted through the supporting plate (3), a discharge port (5) is fixedly mounted at the bottom end of the processing barrel (4), a feed port (15) is fixedly mounted at the left side of the top end of the processing barrel (4), a first motor (6) is fixedly mounted at the middle position of the top end of the processing barrel (4), a rotating shaft (7) is fixedly connected to the output end of the first motor (6), and the bottom end of the rotating shaft (7) extends to the discharge port (5). Inside the material inlet (5), a spiral scraper (8) is fixedly mounted on the rotating shaft (7), the outer wall of the spiral scraper (8) is in contact with the inner wall of the processing barrel (4), two groups of stirring rods (9) are fixedly mounted on the rotating shaft (7), a first cavity (10) is defined inside the rotating shaft (7), a second cavity (11) is defined inside the two groups of stirring rods (9), the two groups of the second cavities (11) are connected to the first cavity (10), and a first electric heating tube (12) is fixedly mounted inside the first cavity (10).

2. A preheating device for plastic product production according to claim 1, characterized in that: A spiral auger (13) is fixedly mounted on the bottom end of the outer wall of the rotating shaft (7), and the outer wall of the spiral auger (13) fits in contact with the inner wall of the discharge port (5).

3. A preheating device for plastic product production according to claim 1, characterized in that: An exhaust pipe (16) is fixedly installed on the top of the processing barrel (4), and an activated carbon adsorption layer (17) is fixedly installed inside the exhaust pipe (16).

4. A preheating device for producing plastic products according to claim 1, characterized in that: A third cavity (18) is provided inside the wall of the processing barrel (4), and a plurality of groups of second electric heating tubes (19) are fixedly installed inside the third cavity (18). A fourth cavity (20) is also provided inside the wall of the processing barrel (4) outside the third cavity (18), and a heat-insulating cotton layer (21) is fixedly installed inside the fourth cavity (20).

5. A preheating device for producing plastic products according to claim 1, characterized in that: A second motor (22) is fixedly mounted on the top of the support frame (1); a threaded rod (23) is fixedly connected to the output end of the second motor (22); the other end of the threaded rod (23) is rotatably connected to the bottom end of the mounting groove (2); the threaded rod (23) is threadedly connected to the support plate (3); two groups of guide rods (24) are also vertically fixedly mounted inside the mounting groove (2); the two groups of guide rods (24) are slidably connected to the support plate (3).

6. A preheating device for producing plastic products according to claim 1, characterized in that: An extruder (14) is fixedly mounted at the bottom end of the discharge port (5), and rubber pads (25) are fixedly mounted at the four corners of the bottom end of the support frame (1).

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