Continuous combined polyether feeding device

Abstract

The utility model discloses a continuous feeding device for premixed polyether polyol, which relates to the field of feeding devices for premixed polyether polyol and comprises a stirring box, a feeding port mounted at the top end of the stirring box, a driving motor mounted at the axis position of the top end of the stirring box, and a cleaning mechanism arranged on the stirring box and the driving motor, and the feeding port is positioned on one side of the driving motor; the cleaning mechanism comprises a stirring unit and a cleaning unit; the stirring unit is used for stirring materials entering the stirring box; the cleaning unit is used for cleaning materials attached to the inner wall of the stirring box. Through the arrangement of the cleaning mechanism, materials entering the stirring box can be stirred, the components and the concentration of the materials in all areas are kept uniform, continuous and automatic discharging and feeding are achieved in the stirring process, the inner sides of the stirring box and the discharging opening can be cleaned in time, waste caused by material adhesion is reduced, and the discharging efficiency is guaranteed; according to the design, the working efficiency can be further improved, and the labor intensity of manually cleaning the inner wall is reduced.

Description

Technical Field

[0001] The utility model relates to the field of combined polyether feeding devices, in particular to a combined polyether continuous feeding device. Background Art

[0002] Composite polyether is one of the main raw materials for polyurethane rigid foam. It is composed of multiple components such as polyether monomer, foam leveling agent, cross-linking agent, catalyst, foaming agent, etc. It is mainly used for mass production of specific polyurethane foam plastic products, such as composite polyether for soft foam for refrigerators and freezers, and composite polyether for soft foam plastic produced by continuous method and box method. In modern industrial production, the continuous feeding of composite polyether is not only necessary, but also of great significance to improve the efficiency of the production process and maintain the stability of material flow. Under normal conditions, the composite polyether is made of multiple components and is in a brown-yellow viscous liquid state as a whole. During the continuous feeding process, it is necessary not only to keep the material in a stirring state, but also to prevent the material from sticking to the inner wall of the storage device, resulting in material waste. Based on this, the utility model proposes a composite polyether continuous feeding device. Utility Model Content

[0003] The purpose of the utility model is to provide a combined polyether continuous feeding device in order to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a combined polyether continuous feeding device, comprising a stirring box, a feeding port is installed at the top of the stirring box, a driving motor is installed at the top axis position of the stirring box, and the feeding port is located on one side of the driving motor. It is characterized in that it also includes a cleaning mechanism arranged on the stirring box and the driving motor; the cleaning mechanism includes a stirring unit and a cleaning unit; the stirring unit includes a stirring rod and a cleaning rod; the stirring rod is connected to the output end of the driving motor through a coupling, and the outer wall of the cleaning rod is "L" shaped as a whole Structure, one end of the horizontal rod portion of the cleaning rod is fixed to the outer wall of the upper end of the shaft rod of the stirring rod, and the outer wall of the vertical rod portion of the cleaning rod is in contact with the inner side of the stirring box; the cleaning unit includes a bidirectional screw, a movable rod, a scraper ring, a positioning rod, and a feed port; the feed port is fixedly arranged at the bottom of the stirring box, the bidirectional screw is rotatably sleeved on the inner wall of the lower end of the stirring rod, the movable rod is fixed to the bottom of the bidirectional screw and passes through the stirring rod, the scraper ring is fixed to the outer wall of the movable rod and extends to the inner side of the feed port; both ends of the positioning rod are fixedly arranged inside the stirring box and pass through the movable rod.

[0005] As a further solution of the utility model: a strip hole is longitudinally opened on the movable rod and runs through the left and right sides, and the positioning rod is slidably arranged in the strip hole.

[0006] As a further solution of the utility model: a plurality of transverse rods for stirring the materials are fixed to the outer wall of the stirring rod, and the transverse rods are evenly distributed on the outer wall of the stirring rod.

[0007] As a further solution of the utility model: the outer wall of the bidirectional screw is formed with two sections of threads with different rotation directions, and the inside of the stirring rod is installed with a crescent pin matching the threads of the outer wall of the bidirectional screw.

[0008] As a further solution of the utility model: the outer wall of the scraper ring is in contact with the inner wall of the feed opening.

[0009] As a further solution of the utility model: an anti-slip ring is arranged at the lower end of the stirring rod, and a self-lubricating sealing ring is arranged on the inner wall of the anti-slip ring, and the self-lubricating sealing ring is in sliding sealing contact with the outer wall of the movable rod.

[0010] As a further solution of the utility model: the bottom of the inner cavity of the mixing box is in a conical shape with a larger upper part and a smaller lower part, and the feed outlet is communicated with the bottom of the conical inner cavity of the mixing box.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] By setting up a cleaning mechanism, the material entering the mixing box can be stirred to keep the material components and concentrations in each area uniform, and continuous automatic discharging and feeding can be achieved during the mixing process. The inner side of the mixing box and the discharge port can be cleaned in time to reduce the waste caused by material adhesion and ensure the discharge efficiency. This design can further improve work efficiency and reduce the labor intensity of manual cleaning of the inner wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the mixing box of the utility model;

[0015] Figure 3 It is a schematic diagram of the installation structure of the movable rod of the utility model.

[0016] In the figure: 1. mixing box; 2. feeding port; 3. driving motor; 4. cleaning mechanism; 401. stirring rod; 402. cleaning rod; 403. bidirectional screw rod; 404. movable rod; 405. scraper ring; 406. positioning rod; 407. feeding port; 408. self-lubricating sealing ring. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1-Figure 3 In the embodiment of the utility model, the combined polyether continuous feeding device includes a stirring box 1, a feeding port 2 is installed at the top of the stirring box 1, a driving motor 3 is installed at the top axis position of the stirring box 1, the feeding port 2 is located on one side of the driving motor 3, and also includes a cleaning mechanism 4 arranged on the stirring box 1 and the driving motor 3; the cleaning mechanism 4 includes a stirring unit and a cleaning unit; the stirring unit is used to stir the material entering the stirring box 1; the cleaning unit is used to clean the material attached to the inner wall of the stirring box 1.

[0019] The stirring unit includes a stirring rod 401 and a cleaning rod 402; the stirring rod 401 is connected to the output end of the driving motor 3 through a coupling, and the stirring rod 401 is used to stir the material inside the stirring box 1; the outer wall of the cleaning rod 402 is an "L"-shaped structure as a whole, and one end of the horizontal rod portion of the cleaning rod 402 is fixed to the outer wall of the upper end of the shaft of the stirring rod 401, and the outer wall of the vertical rod portion of the cleaning rod 402 is in contact with the inner side of the stirring box 1, and the cleaning rod 402 is used to clean the inner wall of the stirring box 1.

[0020] The cleaning unit includes a bidirectional screw rod 403, a movable rod 404, a scraper ring 405, a positioning rod 406, and a discharge port 407; the discharge port 407 is fixedly arranged at the bottom of the mixing box 1, and the discharge port 407 is used to provide a guide for the discharge of materials inside the mixing box 1; the bidirectional screw rod 403 is rotatably sleeved on the inner wall of the lower end of the mixing rod 401, and the bidirectional screw rod 403 is used to synchronously drive the movable rod 404 to move vertically; the movable rod 404 is fixed at the bottom of the bidirectional screw rod 403 and passes through the mixing rod 401, and the movable rod 404 is used to synchronously drive the scraper ring 405 to move; the scraper ring 405 is fixed on the outer wall of the movable rod 404 and extends to the inner side of the discharge port 407, and the scraper ring 405 is used to clean the inner side of the discharge port 407; both ends of the positioning rod 406 are fixedly arranged inside the mixing box 1 and pass through the movable rod 404, and the positioning rod 406 is used to provide a guide for the vertical movement of the movable rod 404.

[0021] In this embodiment: when the device is used, various components for preparing the composite polyether or the composite polyether synthesized by reaction are fed into the mixing box 1 through the feed port 2, and the feed port 407 at the bottom of the mixing box 1 is in a blocked state. By starting the drive motor 3, the drive motor 3 will synchronously drive the stirring rod 401 to rotate, and the transverse rods distributed on the stirring rod 401 will stir the materials inside the mixing box 1; in the process of stirring the materials, the cleaning rod 402 fixed on the outer wall of the shaft of the stirring rod 401 will also synchronously clean the inside of the mixing box 1 to reduce material adhesion. After the materials are evenly stirred, the discharge port 407 is opened, and the rotation of the stirring rod 401 synchronously gives the bidirectional screw rod 403 a driving force for reciprocating up and down. Since the bidirectional screw rod 403 is fixedly connected to the movable rod 404, the movable rod 404 is limited by the positioning rod 406. The bidirectional screw rod 403 will drive the movable rod 404 to move up and down synchronously, and the movable rod 404 moving up and down synchronously drives the scraper ring 405 to move up and down. The scraper ring 405 that moves up and down is used to clean the material attached to the inner side of the discharge port 407, thereby reducing the material attachment to the inner side of the discharge port 407, avoiding blockage of the discharge port 407, and causing a decrease in the discharge efficiency, thereby further improving the work efficiency.

[0022] Please refer to Figure 2-Figure 3 A strip hole is longitudinally opened on the movable rod 404 and runs through it from left to right, and the positioning rod 406 is slidably arranged in the strip hole. In this embodiment, the movable rod 404 slides vertically up and down along the positioning rod 406 through the strip hole, and the positioning rod 406 plays a role of limiting and guiding the movement of the movable rod 404.

[0023] Please refer to Figure 2 A plurality of transverse rods for stirring the material are fixed to the outer wall of the stirring rod 401, and the transverse rods are evenly distributed on the outer wall of the stirring rod 401. In this embodiment, the transverse rods can evenly stir the material along with the rotation of the stirring rod 401.

[0024] Please refer to Figure 3 The outer wall of the bidirectional screw rod 403 is formed with two sections of threads with different rotation directions, and a crescent pin matching the outer wall threads of the bidirectional screw rod 403 is installed inside the stirring rod 401. In this embodiment, when the driving motor 3 drives the stirring rod 401 to rotate, the stirring rod 401 synchronously drives the crescent pin to rotate, and then drives the bidirectional screw rod 403 to reciprocate up and down.

[0025] Please refer to Figure 2 The outer wall of the scraper ring 405 fits with the inner wall of the discharge port 407, and the bidirectional screw rod 403 and the movable rod 404 drive the scraper ring 405 to move up and down, thereby cleaning the material inside the discharge port 407 and reducing the adhesion of the material on the inner wall of the discharge port 407.

[0026] Please refer to Figure 3 An anti-slip ring is provided at the lower end of the stirring rod 401, and a self-lubricating seal ring 408 is provided on the inner wall of the anti-slip ring, and the self-lubricating seal ring 408 is in sliding sealing contact with the outer wall of the movable rod 404. This design can prevent materials from entering the inner cavity at the lower end of the stirring rod 401 and affecting the coordinated transmission of the bidirectional screw 403 and the crescent pin.

[0027] Please refer to Figure 2 The bottom of the inner cavity of the mixing box 1 is in a conical shape with a larger top and a smaller bottom, and the discharge port 407 is connected to the bottom of the conical inner cavity of the mixing box 1. Through this structure, the materials can be automatically concentrated at the upper end of the discharge port 407, so that the materials are discharged after being collected, and the materials are prevented from being retained at the bottom of the mixing box 1 outside the discharge port 407.

[0028] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A combined polyether continuous feeding device, comprising a stirring box (1), wherein a feeding port (2) is installed at the top of the stirring box (1), a driving motor (3) is installed at the top axis position of the stirring box (1), and the feeding port (2) is located on one side of the driving motor (3), characterized in that: The invention also comprises a cleaning mechanism (4) arranged on the stirring box (1) and the driving motor (3); the cleaning mechanism (4) comprises a stirring unit and a cleaning unit; the stirring unit comprises a stirring rod (401) and a cleaning rod (402); the stirring rod (401) is connected to the output end of the driving motor (3) via a coupling; the outer wall of the cleaning rod (402) is in an "L"-shaped structure as a whole; one end of the horizontal rod portion of the cleaning rod (402) is fixed to the outer wall of the upper end of the shaft of the stirring rod (401); the outer wall of the vertical rod portion of the cleaning rod (402) is in contact with the inner side of the stirring box (1); the cleaning unit comprises a bidirectional screw rod (401); 03), a movable rod (404), a scraper ring (405), a positioning rod (406), and a discharge port (407); the discharge port (407) is fixedly arranged at the bottom of the mixing box (1), the bidirectional screw rod (403) is rotatably sleeved on the inner wall of the lower end of the mixing rod (401), the movable rod (404) is fixed to the bottom of the bidirectional screw rod (403) and passes through the mixing rod (401), the scraper ring (405) is fixed to the outer wall of the movable rod (404) and extends to the inner side of the discharge port (407); both ends of the positioning rod (406) are fixedly arranged inside the mixing box (1) and pass through the movable rod (404).

2. The combined polyether continuous feeding device according to claim 1, characterized in that: A strip-shaped hole is longitudinally provided on the movable rod (404) and runs through the movable rod (404) from side to side, and the positioning rod (406) is slidably arranged in the strip-shaped hole.

3. The combined polyether continuous feeding device according to claim 2, characterized in that: A plurality of transverse rods for stirring materials are fixed to the outer wall of the stirring rod (401), and the transverse rods are evenly distributed on the outer wall of the stirring rod (401).

4. The combined polyether continuous feeding device according to claim 2, characterized in that: The outer wall of the bidirectional screw rod (403) is formed with two sections of threads with different rotation directions, and a crescent pin matching the threads of the outer wall of the bidirectional screw rod (403) is installed inside the stirring rod (401).

5. The combined polyether continuous feeding device according to claim 2, characterized in that: The outer wall of the scraper ring (405) fits into the inner wall of the feed opening (407).

6. The combined polyether continuous feeding device according to claim 2, characterized in that: An anti-slip ring is provided at the lower end of the stirring rod (401), and a self-lubricating sealing ring (408) is provided on the inner wall of the anti-slip ring. The self-lubricating sealing ring (408) is in sliding sealing contact with the outer wall of the movable rod (404).

7. The combined polyether continuous feeding device according to claim 2, characterized in that: The bottom of the inner cavity of the mixing box (1) is in the shape of a cone that is larger at the top and smaller at the bottom, and the feed outlet (407) is in communication with the bottom of the inner cavity of the mixing box (1).

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