Plastic granular material preheating and mixing device

Abstract

The utility model relates to the technical field of plastic recycling, and discloses a plastic particle material preheating and mixing device which comprises a preheating tank, a supporting frame is fixedly mounted at the top of the preheating tank, and a stirring piece is mounted at the bottom of the supporting frame through a driving mechanism; a scraping plate matched with the inner wall of the preheating tank is arranged on the stirring piece through a compensation mechanism; according to the plastic particle stirring device, a telescopic rod is controlled to extend, the telescopic rod drives a driving block to descend, through the effect of a spiral rod, the driving block can rotate while descending, then an electric heating plate is driven to rotate while descending, and therefore plastic particles in a preheating tank can be stirred; and meanwhile, the electric heating plate drives the scraping plate to rotate and descend, so that plastic particles attached to the inner wall of the preheating tank can be scraped, the device can be controlled to work only through one driving source, and the failure rate of the device is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of plastic recycling, and in particular to a device for preheating and mixing plastic granular materials. Background Art

[0002] The plastic granule material preheating and mixing device is one of the equipment used to process plastic granules. It is commonly used in the plastic processing industry, especially in the injection molding and extrusion molding processes. The main function of this device is to preheat the plastic granules to the appropriate temperature and mix them evenly so as to obtain better molding effects in the subsequent molding process.

[0003] In the Chinese patent application number 202322400974.6, a waste plastic preheating device is disclosed, which drives the first stirring roller and the second stirring roller to rotate by a first motor so that the plastic particles inside the preheating tank can be fully contacted, so that the plastic particles can be fully preheated and the agglomeration of the plastic particles can be avoided, so that the plastic particles can be mixed more evenly. The vertical movement of the annular scraper can prevent the plastic particles from adhering to the inner wall of the preheating tank. At the same time, the overall structure is relatively simple and very convenient to use, which improves the practicality of the device.

[0004] With regard to the above-mentioned related technologies, the inventors believe that when the above-mentioned device is in use, two sets of driving sources are required to drive the device, which increases the failure rate of the device, and the scraper is prone to wear during use. The worn scraper cannot contact the inner wall of the preheating tank, and thus cannot clean the inner wall, which lacks certain practicality.

[0005] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0006] In order to solve the problem that two sets of driving sources are needed to drive the device, which increases the failure rate of the device, the present application provides a plastic granular material preheating and mixing device.

[0007] The present application provides a plastic granular material preheating and mixing device adopts the following technical solution:

[0008] A plastic granular material preheating and mixing device comprises a preheating tank, the top of which is connected to and provided with a feed port, the bottom of which is connected to and provided with a discharge port, a support frame fixedly installed on the top of the preheating tank, a stirring element installed on the bottom of the support frame via a driving mechanism, and a scraper matched with the inner wall of the preheating tank is provided on the stirring element via a compensation mechanism.

[0009] Preferably, the driving mechanism comprises a spiral rod fixedly mounted on the top of the preheating tank, and a driving block is cooperatively arranged on the spiral rod.

[0010] Preferably, a slide groove is provided on the driving block, a telescopic rod extending into the preheating tank is fixedly mounted on the bottom of the supporting frame, and a pulley cooperating with the slide groove is provided at the bottom of the telescopic rod.

[0011] Preferably, the stirring element comprises four groups of electric heating plates fixedly mounted on the driving block, and a plurality of guide holes are provided on the electric heating plates.

[0012] Preferably, the compensation mechanism includes a placement groove opened on the electric heating plate, a spring is fixedly installed in the placement groove, the scraper extends into the placement groove, and is fixedly connected to the spring via a limiting plate.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] 1. By controlling the extension of the telescopic rod, the telescopic rod drives the driving block to descend. Through the action of the spiral rod, the driving block can rotate while descending, thereby driving the electric heating plate to rotate while descending, thereby stirring the plastic particles in the preheating tank. At the same time, the electric heating plate drives the scraper to rotate and descend, thereby scraping off the plastic particles attached to the inner wall of the preheating tank. Only one set of driving source is needed to control the operation of the device, thereby reducing the failure rate of the device;

[0015] 2. If the scraper is worn and cannot be in close contact with the inner wall of the preheating tank, the elastic force provided by the spring will drive the limit plate to move, and the limit plate will drive the scraper to move, thereby controlling the scraper to contact with the inner wall of the preheating tank, thereby enhancing the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of a three-dimensional structure from a first-view perspective of an embodiment of the application;

[0017] Figure 2 is a cross-sectional view of a preheating tank of an embodiment of the application;

[0018] Figure 3 It is a cross-sectional view of the electric heating plate of the application embodiment.

[0019] Explanation of the accompanying drawings: 1. preheating tank; 2. feed port; 3. discharge port; 4. support frame; 5. scraper; 6. screw rod; 7. drive block; 8. slide groove; 9. telescopic rod; 10. pulley; 11. electric heating plate; 12. guide hole; 13. placement groove; 14. spring; 15. limit plate. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-3 This application is described in further detail.

[0021] The present application embodiment discloses a device for preheating and mixing plastic granular materials. Figure 1-3 , a plastic granular material preheating and mixing device, comprising a preheating tank 1, a feed port 2 is connected and installed at the top of the preheating tank 1, a discharge port 3 is connected and installed at the bottom of the preheating tank 1, a support frame 4 is fixedly installed at the top of the preheating tank 1, a stirring piece is installed at the bottom of the support frame 4 through a driving mechanism, a scraper 5 that cooperates with the inner wall of the preheating tank 1 is arranged on the stirring piece through a compensation mechanism, the driving mechanism comprises a screw rod 6 fixedly installed at the top of the preheating tank 1, a driving block 7 is arranged on the screw rod 6, a chute 8 is provided on the driving block 7, a telescopic rod 9 extending into the preheating tank 1 is fixedly installed at the bottom of the support frame 4, a pulley 10 that cooperates with the chute 8 is arranged at the bottom of the telescopic rod 9, the stirring piece comprises four groups of electric heating plates 11 fixedly installed on the driving block 7, and a plurality of guide holes 12 are provided on the electric heating plates 11;

[0022] By adopting the above technical solution, the telescopic rod 9 is controlled to extend, and the telescopic rod 9 drives the driving block 7 to descend. Through the action of the spiral rod 6, the driving block 7 can rotate while descending, thereby driving the electric heating plate 11 to rotate while descending, thereby stirring the plastic particles in the preheating tank 1, and at the same time, the scraper 5 is driven by the electric heating plate 11 to rotate and descend, thereby scraping the plastic particles attached to the inner wall of the preheating tank 1. Only one set of driving source is needed to control the operation of the device, which reduces the failure rate of the device. Through the action of the slide groove 8 and the pulley 10, the driving block 7 can rotate smoothly without being restricted by the telescopic rod 9. By providing a plurality of guide holes 12 on the electric heating plate 11, the plastic particles can pass through the electric heating plate 11 smoothly, thereby improving the stirring effect.

[0023] Reference Figure 3 The compensation mechanism includes a placement groove 13 provided on the electric heating plate 11, a spring 14 is fixedly installed in the placement groove 13, the scraper 5 extends into the placement groove 13, and is fixedly connected to the spring 14 through a limit plate 15;

[0024] By adopting the above technical solution, if the scraper 5 is worn and cannot be in close contact with the inner wall of the preheating tank 1, the elastic force provided by the spring 14 will drive the limit plate 15 to move, and the limit plate 15 will drive the scraper 5 to move, thereby controlling the scraper 5 to contact with the inner wall of the preheating tank 1, thereby enhancing the practicability of the device.

[0025] The implementation principle of a plastic granular material preheating mixing device in the embodiment of the present application is as follows: the telescopic rod 9 is controlled to extend, and the telescopic rod 9 drives the driving block 7 to descend. Through the action of the spiral rod 6, the driving block 7 can rotate while descending, and then drive the electric heating plate 11 to rotate while descending, thereby stirring the plastic particles in the preheating tank 1, and at the same time, the scraper 5 is driven by the electric heating plate 11 to rotate and descend, thereby scraping off the plastic particles attached to the inner wall of the preheating tank 1. Only one set of driving source is needed to control the operation of the device, which reduces the failure rate of the device. If the scraper 5 is worn and cannot be in close contact with the inner wall of the preheating tank 1, the elastic force provided by the spring 14 will drive the limit plate 15 to move, and the scraper 5 is driven to move by the limit plate 15, thereby controlling the scraper 5 to contact with the inner wall of the preheating tank 1, thereby enhancing the practicality of the device.

[0026] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0027] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0028] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0029] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A plastic granular material preheating and mixing device, comprising a preheating tank (1), the top of the preheating tank (1) is connected to a feed inlet (2), and the bottom of the preheating tank (1) is connected to a discharge outlet (3), characterized in that: A support frame (4) is fixedly mounted on the top of the preheating tank (1), a stirring member is mounted on the bottom of the support frame (4) via a driving mechanism, and a scraper (5) is provided on the stirring member via a compensation mechanism to cooperate with the inner wall of the preheating tank (1).

2. A plastic granular material preheating and mixing device according to claim 1, characterized in that: The driving mechanism comprises a screw rod (6) fixedly mounted on the top of the preheating tank (1), and a driving block (7) is arranged on the screw rod (6).

3. A plastic granular material preheating and mixing device according to claim 2, characterized in that: The driving block (7) is provided with a slide groove (8), the bottom of the support frame (4) is fixedly mounted with a telescopic rod (9) extending into the preheating tank (1), and the bottom of the telescopic rod (9) is provided with a pulley (10) that cooperates with the slide groove (8).

4. A plastic granular material preheating and mixing device according to claim 3, characterized in that: The stirring element comprises four groups of electric heating plates (11) fixedly mounted on the driving block (7), and each of the electric heating plates (11) is provided with a plurality of guide holes (12).

5. A plastic granular material preheating and mixing device according to claim 4, characterized in that: The compensation mechanism comprises a placement groove (13) provided on the electric heating plate (11), a spring (14) being fixedly installed in each of the placement grooves (13), and the scraper (5) extending into the placement groove (13) and being fixedly connected to the spring (14) via a limiting plate (15).

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