A granulation device

Abstract

The utility model discloses a granulation device, including a hopper, a feed pipe of the hopper is connected to at least two granulators through a shunt pipe, and the granulator includes a barrel, a motor, and a spiral shaft, a preload spring, a rotary cutter and a screen arranged in the barrel; a feed pipe connected to the shunt pipe is arranged on the side of the barrel, and a motor mounting plate is connected to the upper end opening of the barrel, and the motor is mounted on the motor mounting plate so that the output shaft of the motor can movably pass through the motor mounting plate and connect with the spiral shaft, and a sleeve with a lower boss is fixedly connected to the output shaft of the motor, and the upper end of the spiral shaft has a hollow structure for the output shaft of the motor to be inserted, and the upper end of the spiral shaft is provided with an upper groove that is matched and connected with the lower boss of the sleeve. The utility model can improve the efficiency of granulation and ensure the reliability of the product.

Description

Technical Field

[0001] The utility model relates to a granulating device. Background Art

[0002] Granite is a natural stone material, belonging to magmatic rock, widely used for outdoor decoration of buildings. However, granite is very expensive, and it is dangerous to use it as a decoration on the exterior wall of a building, so it is not easy to use it on the exterior wall of a large area or high-rise building. Therefore, in order to achieve the luxurious effect of granite appearance, imitation granite materials are constantly emerging. Due to the heterogeneity of granite colors, the imitation process is very complicated. People need a simple imitation coating to simplify the complexity of the imitation process. In this context, colorful coatings came into being.

[0003] Colorful paint is mainly used to imitate stone paint, so it is also called liquid stone, also called imitation granite exterior wall paint. It is composed of two incompatible phases, one of which is a continuous phase and the other is a dispersed phase. When painting, a luxurious, beautiful and colorful pattern can be obtained by spraying it once. Because colorful paint has a certain toughness, it needs to be mechanically cut by a granulator to form granules.

[0004] A Chinese utility model with announcement number CN213254306U discloses a multi-color coating double granulator, which includes a hopper, a barrel with a feed port on the side and a discharge screen at the bottom, a connecting pipe for connecting the hopper and the feed port, a spiral shaft rod that passes through the barrel and is coaxial with the central axis of the barrel and is used to push the multi-color coating, a pre-screening screen arranged inside the barrel and dividing the spiral shaft rod into two sections, two propeller-shaped cutters respectively arranged on the upper end surface of the pre-screening screen and the upper end surface of the discharge screen, a spring arranged between the propeller-shaped cutter and the spiral shaft rod, a motor arranged at the top of the barrel, whose rotating shaft passes through the top of the barrel and is connected to the top of the spiral shaft rod, and a motor fixing plate for supporting the motor is arranged between the motor and the barrel. Its spiral screw is divided into two sections, and a square shaft for fixing a propeller-type cutter is arranged at the end of each spiral shaft, and a connecting rod passing through the propeller-type cutter and the pre-screening screen is arranged at the end of the square shaft. The connecting rod at the end of the upper section of the spiral shaft is sleeved by the lower section of the spiral shaft, and a long threaded hole is opened on the side wall at the end of the upper section of the spiral shaft, and an elliptical hole is opened in the lower section of the spiral shaft corresponding to the position of the long threaded hole. A bolt passes through the elliptical hole and is screwed into the connecting rod of the upper section of the spiral shaft through the long threaded hole. In the upper section of the spiral shaft, a spring is sleeved on the square shaft of the upper section of the spiral shaft, and in the lower section of the spiral shaft, the spring is placed inside the hollow rod body, and the top of the spring passes through the hollow connecting rod to tighten the bolt, and the displacement of the bolt head is limited by the elliptical hole.

[0005] The following problems exist in the application of the multi-color coating double granulator:

[0006] 1. Each hopper can only be connected to one granulator, and the efficiency of cutting granulation is low.

[0007] 2. The screw shaft is directly connected to the output shaft of the motor. In order to facilitate disassembly, the top of the screw shaft needs to be easily inserted into the output shaft of the motor during design and manufacturing. This will increase the connection gap between the two and may also cause the connection to be eccentric, causing the front end of the screw shaft to swing.

[0008] 3. The spiral shaft is divided into two sections, the upper and lower sections. It is easy to produce a gap when the two sections are connected, which will lead to poor concentricity. It is very easy for the lower section of the spiral shaft to hit the edge of the center hole on the screen due to swing, causing wear and affecting the transmission effect. If the wear is serious, the entire main shaft needs to be replaced, and the maintenance cost is high.

[0009] 4. The upper spiral shaft is inserted into the lower spiral shaft through the connecting rod at the bottom. The spring placed inside the hollow rod of the lower spiral shaft is an embedded design. When there is slurry in the hollow rod, the slurry will harden and the spring will be difficult to clean, which will affect the elasticity over time. The function of the spring is to press the cutter downward to provide preload. During the process of cutting and granulating by the cutter, the spring that loses its elasticity will affect the granulation production effect.

[0010] 5. The lower end of the spiral shaft is directly connected to the discharge screen for rotation. The contact between the lower end of the spiral shaft and the center hole of the discharge screen will cause wear. The lower end of the spiral shaft may also wear when the product is disassembled. The wear of the main shaft will seriously affect production and the entire main shaft needs to be replaced.

[0011] 6. The barrel is straight, the discharge speed is slow and the production efficiency is low. Utility Model Content

[0012] The utility model provides a granulating device, aiming to improve the efficiency of granulating and ensure the reliability of products.

[0013] A granulating device comprises a hopper, a feeding pipe of the hopper is connected to at least two granulators through a shunt pipe, the granulator comprises a barrel, a motor, a spiral shaft arranged in the barrel, a preload spring, a rotary cutter and a screen, the preload spring is installed on the spiral shaft and abuts the rotary cutter, so that the rotary cutter abuts the screen, and the rotary cutter is movably sleeved on the spiral shaft up and down and can rotate with the spiral shaft;

[0014] A feed pipe connected to the diverter pipe is arranged on the side of the barrel, and the upper end opening of the barrel is connected to a motor mounting plate, and the motor is mounted on the motor mounting plate so that the output shaft of the motor can movably pass through the motor mounting plate and be connected to the spiral shaft, and a sleeve with a lower boss is fixedly connected to the output shaft of the motor, and the upper end of the spiral shaft has a hollow structure for inserting the output shaft of the motor, and the upper end of the spiral shaft is provided with an upper groove that fits with the lower boss of the sleeve.

[0015] The granulating device of the utility model enables one hopper to connect multiple granulators, which can improve work efficiency. In addition, the shaft sleeve with a lower boss on the output shaft of the motor is connected with the upper groove on the spiral shaft, which can reduce the connection gap while ensuring the easy disassembly design, improve the transmission stability, and improve the swing problem of the spiral shaft.

[0016] The utility model also has the following preferred designs:

[0017] The spiral shaft is connected to a bearing seat through a bearing, and the upper end of the bearing seat is inserted into a bearing seat fixing groove provided on the lower end surface of the motor mounting plate. During the transmission process, the bearing seat can ensure the concentricity of the output shaft of the motor and the spiral shaft, further improve the spiral shaft swing problem, and enhance the transmission stability.

[0018] The barrel of the utility model is installed with two screens, a pre-screening screen and a discharging screen. The spiral shaft includes an upper spiral main shaft and a lower spiral sleeve. The upper spiral main shaft is a whole shaft with a connecting rod. The first preload spring, the first rotary cutter, the pre-screening screen, the lower spiral sleeve, the second preload spring and the second rotary cutter are installed on the connecting rod from top to bottom. The second rotary cutter abuts against the discharging screen. The first rotary cutter, the lower spiral sleeve and the second rotary cutter rotate synchronously with the upper spiral main shaft. The spiral shaft of the utility model is improved to an integral structure, and the high concentricity improves the stability of the transmission. At the same time, the second preload spring is also externally placed on the spiral shaft, which is convenient for cleaning and avoids the influence caused by the reduction of the elasticity of the second preload spring.

[0019] The lower end of the connecting rod of the spiral shaft of the utility model is connected with a center pin, and the center pin is rotatably connected with the center hole of the discharging screen. The center pin of the utility model can be replaced separately after being worn, which can reduce maintenance costs.

[0020] The barrel of the utility model includes a first barrel, a second barrel and a discharge end from top to bottom, the feed pipe is arranged on the side of the first barrel, the second barrel is a variable diameter barrel with a small upper diameter and a large lower diameter, the first barrel and the second barrel are quickly connected through a first clamp, and the second barrel and the discharge end are quickly connected through a second clamp. The second barrel of the utility model can increase the discharge efficiency of the discharge screen and avoid the influence of blockage on granulation.

[0021] The side of the first barrel of the utility model is provided with a section of a convex feed pipe, and the feed pipe is quickly connected with the diverter pipe through a feed pipe clamp.

[0022] A sealing ring is arranged between the first barrel and the motor mounting plate of the utility model to avoid slurry leakage.

[0023] The first barrel of the utility model is provided with a barrel gasket groove for installing the sealing ring, and the barrel gasket groove can also facilitate the installation and positioning of the barrel and the motor mounting plate.

[0024] The utility model has the following beneficial effects:

[0025] 1. The granulating device of the utility model enables one hopper to connect multiple granulators, which can improve work efficiency. In addition, the sleeve with a lower boss on the output shaft of the motor is connected with the upper groove on the spiral shaft, which can reduce the connection gap while ensuring the easy disassembly design, improve the transmission stability, and improve the swing problem of the spiral shaft.

[0026] 2. The bearing seat of the utility model can ensure the concentricity of the output shaft of the motor and the screw shaft, further improve the swing problem of the screw shaft, enhance the transmission stability, and reduce the wear of the screw shaft.

[0027] 3. The screw shaft of the utility model is improved into an integral structure, and the high concentricity improves the stability of the transmission.

[0028] 4. The preload spring of the utility model is externally arranged on the spiral shaft, which is convenient for installation and cleaning and can avoid the influence caused by the reduction of the elasticity of the preload spring.

[0029] 5. The utility model adopts a second barrel with a variable diameter to improve the discharge efficiency.

[0030] 6. The center pin of the utility model can be replaced, which reduces the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a structural diagram of the utility model in which the hopper is connected to two granulators;

[0032] Figure 2 yes Figure 1A three-dimensional diagram of the medium granulator;

[0033] Figure 3 yes Figure 2 Exploded view of the granulator;

[0034] Figure 4 yes Figure 1 A front view of a granulator;

[0035] Figure 5 yes Figure 4 A-A section view;

[0036] Figure 6 yes Figure 5 A magnified view of part B;

[0037] Figure 7 This is a structural diagram of the connection between the motor and the screw shaft of the utility model;

[0038] Figure 8 yes Figure 7 Structural diagram of the motor and screw shaft when disassembled;

[0039] Fig. 9 It is an exploded view of the spiral shaft of the utility model;

[0040] Fig.10 This is a structural diagram of the utility model in which the hopper is connected to three granulators;

[0041] Fig.11 It is a structural diagram of a hopper of the utility model connected with four granulators.

[0042] Explanation of the reference numerals: 1-hopper, 1a-discharge pipe, 2-diverter pipe, 3-first barrel, 3a-feed pipe, 4-second barrel, 5-motor, 5a-output shaft, 5b-sleeve, 6-motor mounting plate, 6a-bearing seat fixing groove, 7-feed pipe clamp, 8-first clamp, 9-second clamp, 10-discharge end, 11-spiral shaft, 11a-upper groove, 11b-connecting rod, 12-bearing, 13-bearing seat, 14-first pre-tightening spring, 15-first rotary cutter, 16-pre-screening screen, 17-lower spiral sleeve, 18-second pre-tightening spring, 19-second rotary cutter, 20-discharge screen, 21-center pin. DETAILED DESCRIPTION

[0043] The technical solution of the present utility model is described in detail below in conjunction with the accompanying drawings and embodiments so that those skilled in the art can better understand and implement the technical solution of the present utility model.

[0044] like Figures 1 to 9As shown, a granulating device of this embodiment includes a hopper 1, a feeding pipe 1a of the hopper 1 is connected to two granulators through a shunt pipe 2, and the granulator includes a barrel, a motor 5, a screw shaft 11, a preload spring, a rotary cutter and a screen arranged in the barrel, the preload spring is installed on the screw shaft 11 and abuts the rotary cutter, so that the rotary cutter abuts the screen, and the rotary cutter is movably sleeved on the screw shaft 11 up and down and can rotate with the screw shaft 11;

[0045] A feed pipe 3a connected to the diverter pipe 2 is provided on the side of the barrel, and the upper end opening of the barrel is connected to a motor mounting plate 6, on which a motor 5 is mounted so that the output shaft 5a of the motor 5 can movably pass through the motor mounting plate 6 and be connected to a screw shaft 11, and a sleeve 5b with a lower boss is fixedly connected to the output shaft 5a of the motor 5, and the upper end of the screw shaft 11 has a hollow structure into which the output shaft 5a of the power supply machine 5 is inserted, and the upper end of the screw shaft 11 is provided with an upper groove 11a that is fitted and connected to the lower boss of the sleeve 5b.

[0046] As a preferred embodiment:

[0047] like Figure 5 and Figure 6 As shown, the screw shaft 11 is connected to the bearing seat 13 through the bearing 12, and the upper end of the bearing seat 13 is inserted into the bearing seat fixing groove 6a provided on the lower end surface of the motor mounting plate 6. During the transmission process, the bearing seat 13 can ensure the concentricity of the output shaft 5a of the motor 5 and the screw shaft 11, which can further improve the screw shaft swing problem and enhance the transmission stability.

[0048] like Figures 7 to 9 As shown, in the barrel of this embodiment, two screens, a pre-screening screen 16 and a discharging screen 20, are installed. The spiral shaft 11 includes an upper spiral main shaft and a lower spiral sleeve 17. The upper spiral main shaft is a whole shaft with a connecting rod 11b. The first preload spring 14, the first rotary cutter 15, the pre-screening screen 16, the lower spiral sleeve 17, the second preload spring 18 and the second rotary cutter 19 are installed on the connecting rod 11b from top to bottom. The second rotary cutter 19 abuts against the discharging screen 20. The first rotary cutter 15, the lower spiral sleeve 17 and the second rotary cutter 19 rotate synchronously with the upper spiral main shaft. In this embodiment, the connecting rod 11b is set as a square rod, and the lower spiral sleeve 17 is provided with a square hollow structure matching the shape of the square rod. The lower spiral sleeve 17 can be fixedly connected to the connecting rod 11b by mechanical means such as screws or latches.

[0049] A center pin 21 is connected to the lower end of the connecting rod 11 b of the screw shaft 11 , and the center pin 21 is rotatably connected to the center hole of the discharge screen 20 .

[0050] The barrel of this embodiment includes a first barrel 3, a second barrel 4 and a discharge end 10 from top to bottom, a feed pipe 3a is arranged on the side of the first barrel 3, the second barrel 4 is a variable diameter barrel with a small upper diameter and a large lower diameter, the first barrel 3 and the second barrel 4 are quickly connected by a first clamp 8, and the second barrel 4 and the discharge end 10 are quickly connected by a second clamp 9. The second barrel 4 can increase the discharge efficiency of the discharge screen 20 and avoid the influence of blockage on granulation.

[0051] Specifically, a section of a feed pipe 3 a protruding outward is provided on the side of the first barrel 3 , and the feed pipe 3 a is quickly connected to the diversion pipe 2 via a feed pipe clamp 7 .

[0052] In this embodiment, a sealing ring is provided between the first barrel 3 and the motor mounting plate 6 to prevent slurry leakage. Specifically, a barrel gasket groove for installing the sealing ring is provided on the first barrel 3, and the barrel gasket groove can also facilitate the installation and positioning of the barrel and the motor mounting plate.

[0053] In other embodiments, Fig.10 As shown, the hopper 1 can be connected to three granulators through a diverter pipe 2 having three channels; Fig.11 As shown, the hopper 1 can be connected to four granulators through a diverter pipe 2 having four channels. The hopper 1 connected to multiple granulators can improve the efficiency of granulation production.

[0054] The above embodiments are only preferred embodiments of the utility model, but cannot be used as limitations of the utility model. Any modifications and improvements based on the concept of the utility model should fall within the protection scope of the utility model. The specific protection scope shall be subject to the claims.

Claims

1. A granulation device, comprising a hopper, characterized in that: The feed pipe of the hopper is connected to at least two granulators through a shunt pipe, and the granulator comprises a barrel, a motor, a spiral shaft, a preload spring, a rotary cutter and a screen arranged in the barrel, the preload spring is installed on the spiral shaft and abuts the rotary cutter, so that the rotary cutter abuts the screen, and the rotary cutter is movably sleeved on the spiral shaft up and down and can rotate with the spiral shaft; A feed pipe connected to the diverter pipe is arranged on the side of the barrel, and the upper end opening of the barrel is connected to a motor mounting plate, and the motor is mounted on the motor mounting plate so that the output shaft of the motor can movably pass through the motor mounting plate and be connected to the spiral shaft, and a sleeve with a lower boss is fixedly connected to the output shaft of the motor, and the upper end of the spiral shaft has a hollow structure for inserting the output shaft of the motor, and the upper end of the spiral shaft is provided with an upper groove that fits with the lower boss of the sleeve.

2. The granulation device according to claim 1, characterized in that: The spiral shaft is connected to a bearing seat via a bearing, and the upper end of the bearing seat is inserted into a bearing seat fixing groove provided on the lower end surface of the motor mounting plate.

3. The granulation device according to claim 2, characterized in that: Two screens, a pre-screening screen and a discharging screen, are installed in the barrel. The spiral shaft includes an upper spiral main shaft and a lower spiral sleeve. The upper spiral main shaft is a whole shaft with a connecting rod. The first pre-tightening spring, the first rotary cutter, the pre-screening screen, the lower spiral sleeve, the second pre-tightening spring and the second rotary cutter are installed on the connecting rod from top to bottom in sequence. The second rotary cutter abuts against the discharging screen. The first rotary cutter, the lower spiral sleeve and the second rotary cutter rotate synchronously with the upper spiral main shaft.

4. The granulation device according to claim 3, characterized in that: The lower end of the connecting rod of the spiral shaft is connected with a center pin, and the center pin is rotatably connected with the center hole of the discharge screen.

5. The granulation device according to any one of claims 1 to 4, characterized in that: The barrel includes a first barrel, a second barrel and a discharge end from top to bottom, the feed pipe is arranged on the side of the first barrel, the second barrel is a variable diameter barrel with a small upper diameter and a large lower diameter, the first barrel and the second barrel are quickly connected by a first clamp, and the second barrel and the discharge end are quickly connected by a second clamp.

6. The granulation device according to claim 5, characterized in that: The feed pipe and the diverter pipe are quickly connected via a feed pipe clamp.

7. The granulation device according to claim 5, characterized in that: A sealing ring is arranged between the first barrel and the motor mounting plate.

8. The granulation device according to claim 7, characterized in that: The first barrel is provided with a barrel gasket groove for installing the sealing ring.

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