Material pressing device of three-roller grinding machine

Abstract

The utility model discloses a material pressing device of a three-roller grinder, which belongs to the technical field of material pressing of grinders and comprises a three-roller grinder body, the three-roller grinder body comprises a frame and three grinding rollers, the grinding rollers are rotatably mounted in the frame, baffles are fixedly mounted on two sides in the frame, a U-shaped plate is fixedly mounted at the upper end of the frame, and the U-shaped plate is fixedly mounted at the lower end of the frame. An air cylinder is fixedly installed at one end of the U-shaped plate, a connecting assembly used for being connected with the lower pressing plate is installed at the output end of the air cylinder, square grooves are formed in the two sides of the lower pressing plate, sliding plates are installed in the square grooves in a sliding mode, and in the material pressing process, direct collision with the grinding roller is avoided by automatically stretching out and drawing back the sliding plates, and the lower pressing plate is prevented from being damaged; the downward pressing effect is improved, the downward pressing plate is mounted or dismounted by moving the sliding block inwards, auxiliary tools are not needed, time and labor are saved, and operation is convenient and fast.

Description

Technical Field

[0001] The utility model specifically relates to a material pressing device for a three-roller grinder, and belongs to the technical field of material pressing technology for grinders. Background Art

[0002] The three-roller grinder is the most effective grinding and dispersing equipment for high-viscosity materials. The grinding effect is achieved by the mutual squeezing of the surfaces of three horizontal rollers and the friction at different speeds. It is mainly used for grinding various liquid slurries and paste materials such as paints, inks, pigments, soaps, ceramics, rubber, etc. The materials become finer after being processed by the three-roller grinder, which is convenient for mixing. Therefore, it is widely used in production. When grinding paste materials, the paste materials may slide relative to the grinding rollers, causing the paste materials to stay on the grinding rollers, resulting in accumulation of materials above, affecting further grinding, thereby reducing grinding efficiency. A material pressing device is needed to press the materials down.

[0003] The common three-roller grinding machine material pressing device is usually fixed and installed by bolts during use. When installing or disassembling, relevant tools are needed, which is time-consuming and labor-intensive, and the operation is inconvenient. In addition, the lower pressure plate may collide with the grinding roller during the pressing process, causing damage to the lower pressure plate, affecting the pressing effect, and increasing costs. Utility Model Content

[0004] The utility model aims to solve the deficiencies of the prior art and provide a material pressing device for a three-roller grinding machine, so as to facilitate the installation and disassembly of a lower pressing plate and protect the lower pressing plate.

[0005] The utility model achieves the above-mentioned purpose through the following technical scheme: a three-roller grinder material pressing device comprises a three-roller grinder body, the three-roller grinder body comprises a frame and three grinding rollers, the grinding rollers are rotatably installed inside the frame, baffles are fixedly installed on both sides of the frame, a U-shaped plate is fixedly installed on the upper end of the frame, a cylinder is fixedly installed on one end of the U-shaped plate, a connecting component for connecting the lower pressing plate is installed on the output end of the cylinder, square grooves are provided on both sides of the lower pressing plate, a sliding plate is slidably installed in the square groove, and when in use, the three-roller grinder body is an existing structure, the grinding rollers are used to grind materials, a motor for driving the grinding rollers to rotate is arranged inside the frame, the cylinder is used to drive the lower pressing plate to move downward to press the material, the connecting component is used to connect the lower pressing plate, and the sliding plate can slide in the square groove.

[0006] Furthermore, in order to enable the sliding block to slide, the connecting component includes a square plate with a sliding groove at one end, a sliding block is slidably installed in the sliding groove, a circular groove is provided at the lower end of the square plate, and a waist-shaped hole is provided at one end of the sliding block.

[0007] Furthermore, in order to facilitate the fixation of the lower pressure plate, a connecting rod is fixedly installed in the middle position of the upper end of the lower pressure plate, and one end of the connecting rod extends into the circular groove and the waist-shaped hole. When in use, the size of the connecting rod is consistent with the size of the circular groove, and the diameter of the connecting rod is consistent with the width of the waist-shaped hole. The round rod can be inserted into the circular groove and the waist-shaped hole.

[0008] Furthermore, in order to enable the sliding block to automatically reset, an installation groove is opened at one end of the sliding groove, a telescopic sleeve rod is fixedly installed at the bottom of the installation groove, the output end of the telescopic sleeve rod is fixedly connected to the sliding block, and a first spring is sleeved on the outer side of the telescopic sleeve rod, one end of the first spring is fixedly installed in the installation groove, and the other end of the first spring is fixedly connected to the sliding block. When in use, the telescopic sleeve rod plays a limiting role to prevent the sliding block from separating from the square plate, and the deformation force generated by the first spring is used to move the sliding block.

[0009] Furthermore, in order to fix the connecting rod, an arc groove is opened at one end of the connecting rod, an arc block is clamped in the arc groove, and the arc block is fixedly connected to the sliding block. When in use, the size of the arc block matches the size of the arc groove, and the position of the connecting rod is limited by moving the arc block.

[0010] Furthermore, in order to make the sliding plate slide smoothly, guide rods are fixedly installed on both sides of one end of the square groove, and a guide groove is opened at one end of the sliding plate. One end of the guide rod extends into the guide groove. When in use, the guide rod slides in the guide groove to prevent the sliding plate from shifting during use.

[0011] Furthermore, in order to enable the sliding plate to automatically reset, second springs are fixedly installed on both sides of the interior of the square groove, one end of the second spring is fixedly connected to the sliding plate, and the second spring is sleeved on the outer side of the guide rod. When in use, the deformation force generated by the second spring is used to move the sliding plate.

[0012] Furthermore, in order to prevent the sliding plate from being stuck between the grinding rollers, both ends of the sliding plate are arc-shaped structures.

[0013] The technical effects and advantages of the utility model are as follows: when the utility model is in use, the lower pressure plate is installed or disassembled by moving the sliding block inward without the aid of auxiliary tools, which saves time and effort and is easy to operate. In the process of pressing the material, the sliding plate is automatically retracted to avoid direct collision with the grinding roller, thereby preventing damage to the lower pressure plate and improving the pressing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the connection structure of the lower pressing plate of the utility model;

[0016] Figure 3 This is a schematic diagram of the exploded structure of the connection assembly of the utility model;

[0017] Figure 4 It is a schematic diagram of the connection structure between the lower pressing plate and the sliding plate of the utility model.

[0018] In the figure: 1, frame; 2, grinding roller; 3, baffle; 4, U-shaped plate; 5, cylinder; 6, lower pressure plate; 7, connecting assembly; 701, square plate; 702, sliding groove; 703, sliding block; 704, telescopic sleeve rod; 705, first spring; 706, arc block; 8, square groove; 9, sliding plate; 10, connecting rod; 11, guide rod; 12, second spring. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-Figure 4As shown, a material pressing device for a three-roller grinder comprises a three-roller grinder body, the three-roller grinder body comprises a frame 1 and three grinding rollers 2, the grinding rollers 2 are rotatably mounted inside the frame 1, baffles 3 are fixedly mounted on both sides of the frame 1, a U-shaped plate 4 is fixedly mounted on the upper end of the frame 1, a cylinder 5 is fixedly mounted on one end of the U-shaped plate 4, a connecting component 7 for connecting a lower pressing plate 6 is mounted on the output end of the cylinder 5, square grooves 8 are provided on both sides of the lower pressing plate 6, a sliding plate 9 is slidably mounted in the square groove 8, when in use, first start the motor in the frame 1 to drive the grinding rollers 2 to rotate, then add materials between the baffles 3 for grinding, when materials stay on the grinding rollers 2, start the cylinder 5 to drive the lower pressing plate 6 to move downward to press the materials, when in contact with the grinding rollers 2, the sliding plate 9 slides in the square groove 8 to protect the lower pressing plate 6 to prevent it from being damaged, and the lower pressing plate 6 can be installed or removed through the connecting component 7.

[0021] The connecting assembly 7 includes a square plate 701 with a sliding groove 702 at one end, a sliding block 703 is slidably installed in the sliding groove 702, a circular groove is opened at the lower end of the square plate 701, a waist-shaped hole is opened at one end of the sliding block 703, a connecting rod 10 is fixedly installed at the middle position of the upper end of the lower pressing plate 6, one end of the connecting rod 10 extends into the circular groove and the waist-shaped hole, a mounting groove is opened at one end of the sliding groove 702, a telescopic sleeve rod 704 is fixedly installed at the bottom of the mounting groove, the output end of the telescopic sleeve rod 704 is fixedly connected to the sliding block 703, and the outer side of the telescopic sleeve rod 704 is sleeved with a first A spring 705, one end of the first spring 705 is fixedly installed in the installation groove, the other end of the first spring 705 is fixedly connected to the sliding block 703, one end of the connecting rod 10 is provided with an arc groove, an arc block 706 is clamped in the arc groove, and the arc block 706 is fixedly connected to the sliding block 703. When in use, the sliding block 703 is manually moved inward to disengage the arc block 706 from the arc groove. At this time, the connecting rod 10 moves in the waist-shaped hole, and the telescopic sleeve rod 704 contracts to play a guiding and limiting role. The first spring 705 is compressed, and then the lower pressure plate 6 can be moved out.

[0022] Guide rods 11 are fixedly installed on both sides of one end of the square groove 8, and a guide groove is opened at one end of the sliding plate 9. One end of the guide rod 11 extends into the guide groove. Second springs 12 are fixedly installed on both sides of the inside of the square groove 8. One end of the second spring 12 is fixedly connected to the sliding plate 9, and the second spring 12 is sleeved on the outer side of the guide rod 11. The two ends of the sliding plate 9 are arc structures. When in use, when the sliding plate 9 contacts the grinding roller 2, it will move into the square groove 8. At this time, the guide rod 11 moves in the guide groove, and the second spring 12 is compressed. When the sliding plate 9 leaves the grinding roller 2, the sliding plate 9 is reset due to the deformation force of the second spring 12.

[0023] When the utility model is in use, first start the motor, and the grinding roller 2 will rotate accordingly. Then, add the material between the baffle plates 3 for grinding. When the material stays on the grinding roller 2, start the cylinder 5 to drive the lower pressure plate 6 to move downward to press the material. When the sliding plate 9 contacts the grinding roller 2, the sliding plate 9 will move into the square groove 8 to protect the lower pressure plate 6 and prevent it from being damaged, thereby improving the pressing effect. When the lower pressure plate 6 needs to be disassembled, manually move the sliding block 703 to disengage the arc block 706 from the arc groove, and then move the lower pressure plate 6 out. No auxiliary tools are needed, which saves time and effort and is easy to operate.

[0024] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0025] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A material pressing device for a three-roller mill, comprising a three-roller mill body, the three-roller mill body comprising a frame (1) and three grinding rollers (2), the grinding rollers (2) being rotatably mounted inside the frame (1), baffles (3) being fixedly mounted on both sides of the frame (1), characterized in that: A U-shaped plate (4) is fixedly mounted on the upper end of the frame (1), a cylinder (5) is fixedly mounted on one end of the U-shaped plate (4), a connecting assembly (7) for connecting to a lower pressing plate (6) is mounted on the output end of the cylinder (5), square grooves (8) are provided on both sides of the lower pressing plate (6), and a sliding plate (9) is slidably mounted in the square groove (8).

2. The material pressing device for a three-roll mill according to claim 1, characterized in that: The connecting assembly (7) comprises a square plate (701) with a sliding groove (702) at one end, a sliding block (703) is slidably mounted in the sliding groove (702), a circular groove is formed at the lower end of the square plate (701), and a waist-shaped hole is formed at one end of the sliding block (703).

3. The material pressing device for a three-roll mill according to claim 2, characterized in that: A connecting rod (10) is fixedly mounted at the middle position of the upper end of the lower pressing plate (6), and one end of the connecting rod (10) extends into the circular groove and the waist-shaped hole.

4. The material pressing device for a three-roll mill according to claim 3, characterized in that: A mounting groove is provided at one end of the sliding groove (702), a telescopic sleeve rod (704) is fixedly mounted at the bottom of the mounting groove, an output end of the telescopic sleeve rod (704) is fixedly connected to the sliding block (703), a first spring (705) is sleeved on the outer side of the telescopic sleeve rod (704), one end of the first spring (705) is fixedly mounted in the mounting groove, and the other end of the first spring (705) is fixedly connected to the sliding block (703).

5. The material pressing device for a three-roll mill according to claim 4, characterized in that: An arc-shaped groove is formed at one end of the connecting rod (10), an arc-shaped block (706) is clamped in the arc-shaped groove, and the arc-shaped block (706) is fixedly connected to the sliding block (703).

6. The material pressing device for a three-roll mill according to claim 1, characterized in that: Guide rods (11) are fixedly mounted on both sides of one end of the square groove (8), a guide groove is formed at one end of the sliding plate (9), and one end of the guide rod (11) extends into the guide groove.

7. The material pressing device for a three-roll mill according to claim 6, characterized in that: Second springs (12) are fixedly mounted on both sides of the interior of the square groove (8), one end of the second spring (12) is fixedly connected to the sliding plate (9), and the second spring (12) is sleeved on the outside of the guide rod (11).

8. The material pressing device for a three-roll mill according to claim 1, characterized in that: Both ends of the sliding plate (9) are arc-shaped structures.

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