A masterbatch grinding anti-jamming mechanism

Abstract

The invention provides a masterbatch grinding and anti-stuck mechanism, which relates to the field of masterbatch processing equipment. The masterbatch grinding and anti-stuck mechanism grinds the masterbatch, and includes a base, a grinding cylinder is arranged above the base, the inner diameter of the grinding cylinder gradually decreases from top to bottom, the lower end of the grinding cylinder is hinged with the top of the base, and a base rod is arranged in the grinding cylinder. The masterbatch grinding and anti-stuck mechanism has a base rod set in the grinding cylinder, an air chamber is opened in the lower half of the base rod, and a grinding plate and an elastic connecting membrane are arranged outside the base rod, so as to form a closed air cavity outside the base rod, and the shape of the base rod is changed by the cooperation of a piston, a fine screw and the air cavity, so that the base rod is retracted to cancel the extrusion of the masterbatch, and the masterbatch accumulated and agglomerated when the grinding cylinder is placed horizontally can flow back. The agglomeration is broken by the extension and contraction of the electric push rod, so as to avoid the base rod being unable to rotate due to continued jamming. The manual operation steps and the labor intensity of the workers are reduced, the cleaning speed is accelerated, and the work efficiency is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of masterbatch processing equipment, in particular to a masterbatch grinding and anti-jamming mechanism. Background Art

[0002] Masterbatch, also known as color seed or masterbatch, is a new type of colorant specially used for polymer materials, also known as pigment preparation. Masterbatch is composed of three basic elements: pigment or dye, carrier and additive. It is an aggregate obtained by uniformly loading an extraordinary amount of pigment into the resin, which can be called pigment concentrate.

[0003] The Chinese utility model patent with patent publication number CN213762189U discloses a grinding device for masterbatch production. A lower grinding table is provided on the upper part of the main box body through a supporting material guide table. Lifting cylinders are symmetrically provided on both sides of the main box body. An upper grinding block is provided above the lifting cylinder through a bracket and a rotating drive mechanism. A feed hopper is provided above the upper grinding block. A movable frame is symmetrically provided below the supporting material guide table through a movable groove and a telescopic cylinder. A screening frame mechanism is provided below the movable frame. A discharge port and an extended material guide frame are provided on one side wall below the main box body.

[0004] The utility model uses the upper grinding block and the lower grinding table to grind the raw materials. The raw materials are accumulated and agglomerated, resulting in a jamming phenomenon during the grinding process. At this time, the upper grinding block and the lower grinding table need to be separated from each other to clean up the accumulated jammed fragments. Manual operation is relatively troublesome and reduces work efficiency. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the shortcomings of the prior art, the present invention provides a masterbatch grinding and anti-jamming mechanism, which solves the problems raised in the above background technology.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a masterbatch grinding and anti-stuck mechanism for grinding masterbatch, including a base, a grinding cylinder is provided above the base, the inner diameter of the grinding cylinder gradually decreases from top to bottom, the lower end of the grinding cylinder is hinged to the top of the base, a base rod is provided in the grinding cylinder, the upper end of the grinding cylinder is connected to a cylinder cover, the top of the cylinder cover is connected to a motor, the upper end of the base rod is connected to a base block, the motor drive shaft passes through the cylinder cover and is connected to the base block, the lower half of the base rod body is conical, and the diameter of the lower half of the base rod gradually decreases from top to bottom.

[0009] It also includes multiple grinding plates, which are arranged in a ring around the lower half of the base rod. There is a gap between the grinding plates and the grinding cylinder, and the gap gradually decreases from top to bottom. A sensing component is set between the cylinder cover and the base block, and the sensing component is used to monitor whether the base rod can operate normally. An expansion component is set between the grinding plates and the base rod, and when the expansion component is folded, it is convenient for the accumulated masterbatch to agglomerate.

[0010] The grinding cylinder is inclined at a degree, and the masterbatch has a force to always move downward. When the grinding cylinder is placed horizontally, the gap is inclined in the opposite direction, causing the masterbatch to move toward the cylinder cover.

[0011] A discharge port is provided at the bottom of the grinding cylinder, and a wooden plug is arranged at the discharge port.

[0012] Preferably, the expansion component includes an elastic connecting membrane, a piston and a thin screw. An air chamber is opened in the lower half of the base rod along the length direction. The piston is slidably fitted in the air chamber. The thin screw is pivotally connected in the air chamber and driven to rotate by a motor. The thin screw thread penetrates the piston. The air chamber and above the piston are filled with air. The elastic connecting membrane and the grinding plate form an expandable and contractible air cavity, and the air cavity is connected to the air chamber.

[0013] Preferably, the grinding plate has a certain toughness, the lower end of the grinding plate is connected to the lower end of the base rod, the elastic connecting membrane is connected to the upper end of the grinding plate, the elastic connecting membrane extends between two adjacent grinding plates, and the elastic connecting membrane is connected to the base rod body away from the grinding plate. The grinding plate, the elastic connecting membrane and the base rod cooperate to form a closed air cavity, and an air hole is opened at the upper end of the air bin, through which the air bin and the air cavity are connected.

[0014] Preferably, the sensing component includes a hexagonal slot, an iron rod, a paddle, a spring and a pressure sensing unit, the hexagonal slot is arranged on the inner side of the cylinder cover, the motor drive shaft passes through the hexagonal slot, the iron rod is arranged in an equiangular ring on the inner side of the hexagonal slot, the base block is provided with a plurality of grooves at equal angles toward one side of the hexagonal slot, the tail end of the paddle is pivotally connected in the groove, the head end of the groove can contact with the iron rod, the springs are symmetrically arranged on both sides of the paddle, and the pressure sensing unit is arranged between the spring and the inner wall of the groove.

[0015] Preferably, the upper half of the base rod is provided with an embedding groove, in which a plurality of electric push rods are arranged at equal distances. The electric push rods are repeatedly extended and retracted to break up the agglomerated masterbatch, and an elastic rubber pad is connected to the movable end of the embedding groove.

[0016] Preferably, a cylinder is provided on the top of the base, the cylinder is vertically upward and connected to a U-shaped frame, the U-shaped frame is used to support the grinding cylinder, a vertical connecting rod is connected to the top of the base, the upper end of the connecting rod is hinged to the bottom of the grinding cylinder, a coarse screw driven to rotate by a motor is pivoted to the top of the base, a slider is connected to the bottom of the cylinder, the coarse screw is in contact with the top, and the transverse thread of the coarse screw passes through the slider.

[0017] Preferably, two flanges are connected to the outside of the grinding cylinder, the U-shaped frame is located between the two flanges, a wavy strip is provided on the side of the grinding cylinder away from the U-shaped frame, the cylinder cover thread is threadedly connected with a bolt, and the bolt thread passes through the opening edge of the grinding cylinder.

[0018] (III) Beneficial effects

[0019] The present invention provides a masterbatch grinding anti-jamming mechanism, which has the following beneficial effects:

[0020] 1. The masterbatch grinding anti-stuck mechanism has a base rod in the grinding cylinder, an air chamber in the lower half of the base rod, and a grinding plate and an elastic connecting membrane outside the base rod, so as to form a closed air cavity outside the base rod. The piston, the fine screw and the air cavity are used to change the shape of the base rod, so that the base rod is retracted to cancel the extrusion of the masterbatch, and the masterbatch accumulated and agglomerated when the grinding cylinder is placed horizontally can flow back. The electric push rod is extended and retracted to break up the agglomeration to avoid continued jamming and the base rod being unable to rotate. It reduces manual operation steps and reduces the labor intensity of workers, speeds up the cleaning speed, and further improves work efficiency.

[0021] 2. The masterbatch grinding anti-stuck mechanism has multiple electric push rods in the front half of the base rod, which are used to break up the agglomerated masterbatch. A sensing component is set up in the grinding cylinder. The sensing component includes a paddle, a spring, a pressure sensing unit, and an iron rod. Whether the paddle is in conflict with the iron rod and pressure is applied to the pressure sensing unit to determine whether the base rod is working normally, thereby determining whether the masterbatch causes the jam phenomenon. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a reference diagram for the structure of the present invention;

[0023] Figure 2 It is a cross-sectional view of another state of the structure of the present invention;

[0024] Figure 3 This is a diagram showing the internal structure of the base rod of the present invention;

[0025] Figure 4 It is a schematic diagram of the local structure of the present invention.

[0026] In the figure: 1 base, 11 cylinder, 111 U-shaped frame, 12 connecting rod, 13 coarse screw, 2 grinding cylinder, 21 flange, 22 wave strip block, 23 wooden plug, 3 cylinder cover, 31 bolt, 32 motor, 4 base block, 41 groove, 42 pick, 43 spring, 44 pressure sensing unit, 5 base rod, 51 embedded groove, 52 air chamber, 53 piston, 54 thin screw, 55 air hole, 6 hexagonal groove, 61 iron rod, 7 electric push rod, 8 grinding plate, 81 air cavity, 9 elastic connecting membrane. DETAILED DESCRIPTION

[0027] The embodiment of the present invention provides a masterbatch grinding and anti-jamming mechanism, such as Figure 1-4 As shown, the masterbatch grinding includes a base 1, a grinding cylinder 2 is arranged on the base 1, the inner diameter of the grinding cylinder 2 gradually decreases from top to bottom, the lower end of the grinding cylinder 2 is hinged to the top of the base 1, a base rod 5 is arranged inside the grinding cylinder 2, and a rotatable cushion block is pivotally connected to the bottom of the base rod 5. The cushion block is fixedly clamped to the bottom of the inner wall of the grinding cylinder 2.

[0028] A cylinder cover 3 is fixedly installed on the upper end of the grinding cylinder 2, a motor 32 is fixedly installed on the top of the cylinder cover 3, a base block 4 is fixedly installed on the upper end of the base rod 5, the drive shaft of the motor 32 passes through the cylinder cover 3 and is welded to the base block 4, the lower half of the base rod 5 is conical, and the diameter of the lower half of the base rod 5 gradually decreases from top to bottom.

[0029] It also includes a plurality of grinding plates 8, which are annularly installed around the lower half of the base rod 5. There is a gap between the grinding plates 8 and the grinding cylinder 2, and the gap gradually decreases from top to bottom.

[0030] A sensing component is set between the cylinder cover 3 and the base block 4, and the sensing component is used to monitor whether the base rod 5 can operate normally. An expansion component is set between the grinding plate 8 and the base rod 5. When the expansion component is folded, it is convenient for the accumulated masterbatch to agglomerate.

[0031] The grinding cylinder 2 is tilted at 45°, and the masterbatch has the force to move downward all the time. Figure 1 As shown, the masterbatch is ground by the grinding plate 8 and the inner wall of the grinding cylinder 2. During this process, the masterbatch is continuously crushed into small particles and continues to move downward.

[0032] If the masterbatch accumulates and clumps, the sensing component detects that the base rod 5 cannot rotate, and the grinding cylinder 2 is placed horizontally, with the gap tilted in the opposite direction, so that the masterbatch moves toward the cylinder cover 3.

[0033] A discharge port is provided at the bottom of the grinding cylinder 2, and a wooden plug 23 is arranged at the discharge port. When the wooden plug 23 is removed during operation, the ground small-particle masterbatch falls out of the grinding cylinder 2.

[0034] The expansion and support assembly includes an elastic connection membrane 9, a piston 53 and a thin screw 54. An air chamber 52 is provided in the lower half of the base rod 5 along the length direction. The piston 53 is slidably fitted in the air chamber 52. The thin screw 54 is pivotally connected in the air chamber 52 and driven to rotate by a motor. The thin screw 54 threadably penetrates the piston 53. The air chamber 52 and above the piston 53 are filled with air. The elastic connection membrane 9 and the grinding plate 8 form an expandable and contractible air chamber 81, and the air chamber 81 is connected to the air chamber 52.

[0035] The grinding plate 8 has a certain toughness. The lower end of the grinding plate 8 is welded to the lower end of the base rod 5. The elastic connecting membrane 9 is fixedly installed on the upper end of the grinding plate 8. The elastic connecting membrane 9 extends between two adjacent grinding plates 8, that is, the gap between the grinding plates 8 is filled with the elastic connecting membrane 9 to prevent air leakage.

[0036] The elastic connecting film 9 is fixedly installed with the rod body of the base rod 5 at one side away from the grinding plate 8. The grinding plate 8 cooperates with the elastic connecting film 9 and the base rod 5 to form a closed air cavity 81, and an air hole 55 is opened at the upper end of the air chamber 52, through which the air chamber 52 is connected to the air cavity 81.

[0037] Working principle: When the fine screw 54 rotates to move the piston 53 downward, all the air is sucked into the air chamber 52. At this time, the grinding plate 8 is in a non-working state, and the grinding plate 8 is parallel to the lower half of the base rod 5. There is a large gap between the grinding plate 8 and the inner wall of the grinding cylinder 2. At this time, when the grinding cylinder 2 is placed horizontally, the accumulated and agglomerated masterbatch is far away from the lower end of the base rod 5.

[0038] When the fine screw 54 selects to move the piston 53 upward, the air in the air chamber 52 is pressed into the air cavity 81. Due to the existence of the elastic connecting membrane 9, the upper end of the grinding plate 8 is further away from the base rod 5. At this time, the lower half of the entire base rod 5 is conical, so that the gap between the inner wall of the grinding cylinder 2 and the grinding plate 8 gradually decreases from top to bottom.

[0039] The sensing component includes a hexagonal slot 6, an iron rod 61, a paddle 42, a spring 43 and a pressure sensing unit 44. The hexagonal slot 6 is fixedly mounted on the inner side of the cylinder cover 3. The transmission shaft of the motor 32 passes through the hexagonal slot 6. The iron rod 61 is welded to the inner side of the hexagonal slot 6 in an equiangular ring.

[0040] A plurality of grooves 41 are formed at equal angles on one side of the base block 4 facing the hexagonal slot 6. The tail end of the paddle 42 is pivotally connected in the groove 41. The head end of the groove 41 can contact the iron rod 61. The springs 43 are symmetrically fixedly installed on both sides of the paddle 42. The pressure sensing unit 44 is fixedly installed between the spring 43 and the inner wall of the groove 41.

[0041] Working principle: When the motor 32 drives the base block 4 and the base rod 5 to rotate, the paddle 42 contacts the iron rod 61, and the paddle 42 deflects the compression spring 43, exerting pressure on the pressure sensing unit 44, and the pressure sensing unit 44 feeds back information to the outside world. When the pressure sensing unit 44 is not squeezed after the motor 32 is started, it means that the base rod 5 is stuck due to the accumulation of masterbatch.

[0042] The upper half of the base rod 5 is provided with an embedding groove 51, in which a plurality of electric push rods 7 are fixedly installed at equal distances. The electric push rods 7 are repeatedly extended and retracted to break up the agglomerated masterbatch. The movable end of the embedding groove 51 is connected with an elastic rubber pad.

[0043] As attached Figure 2As shown, the grinding cylinder 2 is placed horizontally to pour the masterbatch, and at the same time, the air cavity 51 of the base rod 5 shrinks, so that the masterbatch flows back and the base rod 5 can rotate again. The electric push rod 7 is started to crush the agglomerate with an elastic rubber pad.

[0044] A cylinder 11 is fixedly installed on the top of the base 1. The cylinder 11 is vertically upward and welded with a U-shaped frame 111. The U-shaped frame 111 is used to support the grinding cylinder 2. A vertical connecting rod 12 is fixedly installed on the top of the base 1. The upper end of the connecting rod 12 is hinged to the bottom of the grinding cylinder 2.

[0045] A motor-driven coarse screw 13 is pivotally connected to the top of the base 1, and a slider is fixedly installed at the bottom of the cylinder 11. The coarse screw 13 contacts the top of 1, and the coarse screw 13 passes through the slider in a horizontal thread. The coarse screw 13 drives the cylinder 11 to move, and in conjunction with the cylinder 11 itself to contract, the grinding cylinder 2 is controlled to tilt or level.

[0046] Two flanges 21 are welded on the outside of the grinding cylinder 2, the U-shaped frame 111 is located between the two flanges 21, and a wavy strip 22 is fixedly installed on the side of the grinding cylinder 2 away from the U-shaped frame 111. The cylinder cover 3 is threadedly connected with a bolt 31, and the bolt 31 threadedly passes through the opening edge of the grinding cylinder 2.

[0047] Slide the wooden stick on the wave bar 22 to lightly knock the grinding cylinder 2, thereby achieving a vibration effect and knocking off the masterbatch particles attached to the base rod 5 and the inner wall of the grinding cylinder 2.

[0048] In summary, the masterbatch grinding anti-stuck mechanism has a base rod 5 set up in the grinding cylinder 2, an air chamber 5 is opened in the lower half of the base rod 5, and a grinding plate 8 and an elastic connecting membrane 9 are set up outside the base rod 5, so as to form a closed air cavity 81 outside the base rod 5. The piston 53, the fine screw 52 and the air cavity 81 are used to change the shape of the base rod 5, so that the base rod 5 is retracted to cancel the extrusion of the masterbatch, and the masterbatch accumulated and agglomerated when the grinding cylinder 2 is placed horizontally can flow back. The agglomerates are broken up by the extension and contraction of the electric push rod 7 to avoid continued jamming and the inability of the base rod 5 to rotate. The manual operation steps and the labor intensity of the workers are reduced, the cleaning speed is accelerated, and the work efficiency is further improved.

[0049] In addition, a plurality of electric push rods 7 are provided at the front half of the base rod 5, and the agglomerated masterbatch is re-broken by the electric push rods 7. A sensing component is provided in the grinding cylinder 2, and the sensing component includes a paddle 42, a spring 43, a pressure sensing unit 44, and an iron rod 61. Whether the paddle 42 is in conflict with the iron rod 61 and pressure is applied to the pressure sensing unit 44 is used to determine whether the base rod 5 is working normally, thereby determining whether the masterbatch causes a jam.

[0050] Although 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 masterbatch grinding and anti-jamming mechanism for grinding masterbatch, comprising a base (1), characterized in that: A grinding cylinder (2) is arranged above the base (1), the inner diameter of the grinding cylinder (2) gradually decreases from top to bottom, the lower end of the grinding cylinder (2) is hinged to the top of the base (1), a base rod (5) is arranged inside the grinding cylinder (2), the upper end of the grinding cylinder (2) is connected to a cylinder cover (3), the top of the cylinder cover (3) is connected to a motor (32), the upper end of the base rod (5) is connected to a base block (4), the transmission shaft of the motor (32) passes through the cylinder cover (3) and is connected to the base block (4), the lower half of the base rod (5) is conical, and the diameter of the lower half of the base rod (5) gradually decreases from top to bottom; It also includes a plurality of grinding plates (8), which are arranged in a ring around the lower half of the base rod (5). There is a gap between the grinding plates (8) and the grinding cylinder (2), and the gap gradually decreases from top to bottom. A sensing component is set between the cylinder cover (3) and the base block (4), and the sensing component is used to monitor whether the base rod (5) can operate normally. An expansion component is set between the grinding plates (8) and the base rod (5), and when the expansion component is folded, it is convenient for the accumulated masterbatch to move. The grinding cylinder (2) is inclined at 45 degrees, and the masterbatch has a force to always move downward. When the grinding cylinder (2) is placed horizontally, the gap is inclined in the opposite direction, so that the masterbatch moves toward the cylinder cover (3); The bottom of the grinding cylinder (2) is provided with a discharge port, and a wooden plug (23) is arranged at the discharge port.

2. A masterbatch grinding and anti-stuck mechanism according to claim 1, characterized in that: The expansion and support assembly comprises an elastic connecting membrane (9), a piston (53) and a thin screw (54); an air chamber (52) is provided in the lower half of the base rod (5) along the length direction; the piston (53) is slidably fitted in the air chamber (52); the thin screw (54) is pivotally connected in the air chamber (52) and driven to rotate by a motor; the thin screw (54) threadably penetrates the piston (53); the air chamber (52) and above the piston (53) is filled with air; the elastic connecting membrane (9) and the grinding plate (8) form an expandable and contractible air cavity (81); and the air cavity (81) is communicated with the air chamber (52).

3. A masterbatch grinding and anti-jamming mechanism according to claim 2, characterized in that: The grinding plate (8) has a certain toughness. The lower end of the grinding plate (8) is connected to the lower end of the base rod (5). The elastic connecting membrane (9) is connected to the upper end of the grinding plate (8). The elastic connecting membrane (9) extends between two adjacent grinding plates (8). The side of the elastic connecting membrane (9) away from the grinding plate (8) is connected to the rod body of the base rod (5). The grinding plate (8), the elastic connecting membrane (9) and the base rod (5) cooperate to form a closed air cavity (81). An air hole (55) is opened at the upper end of the air bin (52), and the air bin (52) is connected to the air cavity (81) through the air hole (55).

4. A masterbatch grinding and anti-jamming mechanism according to claim 3, characterized in that: The sensing component comprises a hexagonal slot (6), an iron rod (61), a paddle (42), a spring (43) and a pressure sensing unit (44); the hexagonal slot (6) is arranged on the inner side of the barrel cover (3); the transmission shaft of the motor (32) passes through the hexagonal slot (6); the iron rod (61) is arranged in an equiangular ring shape on the inner side of the hexagonal slot (6); a plurality of grooves (41) are formed on the base block (4) at equiangular angles on one side facing the hexagonal slot (6); the rear end of the paddle (42) is pivotally connected to the groove (41); the front end of the groove (41) can contact the iron rod (61); the spring (43) is symmetrically arranged on both sides of the paddle (42); and the pressure sensing unit (44) is arranged between the spring (43) and the inner wall of the groove (41).

5. A masterbatch grinding and anti-jamming mechanism according to claim 4, characterized in that: The upper half of the base rod (5) is provided with an embedding groove (51), and a plurality of electric push rods (7) are arranged at equal distances in the embedding groove (51). The electric push rods (7) are repeatedly extended and retracted to break up the agglomerated masterbatch. The movable end of the embedding groove (51) is connected with an elastic rubber pad.

6. A masterbatch grinding and anti-jamming mechanism according to claim 5, characterized in that: The top of the base (1) is provided with a cylinder (11), the cylinder (11) is vertically upward and connected to a U-shaped frame (111), the U-shaped frame (111) is used to support the grinding cylinder (2), the top of the base (1) is connected to a vertical connecting rod (12), the upper end of the connecting rod (12) is hinged to the bottom of the grinding cylinder (2), the top of the base (1) is pivotally connected to a coarse screw (13) driven to rotate by a motor, the bottom of the cylinder (11) is connected to a slider, the coarse screw (13) is in contact with the top of 1, and the coarse screw (13) has a transverse thread that penetrates the slider.

7. A masterbatch grinding and anti-jamming mechanism according to claim 6, characterized in that: The grinding cylinder (2) is connected to two flanges (21) on its outer side, the U-shaped frame (111) is located between the two flanges (21), a wavy strip (22) is provided on the side of the grinding cylinder (2) away from the U-shaped frame (111), and the cylinder cover (3) is threadedly connected to a bolt (31), the bolt (31) threadedly passes through the opening edge of the grinding cylinder (2).

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