Automatic discharging mechanism for hair grinding device

Abstract

The utility model discloses an automatic discharging mechanism for a hair grinding device, which relates to the technical field of pulling down plastic caps on plastic pipes and comprises a lifting mechanism arranged on a workbench and positioned on the right side of the hair grinding device. The right side of the lifting mechanism is provided with a cap pulling mechanism used for pulling out a plastic cap from a plastic pipe. The lifting mechanism comprises a lifting air cylinder fixedly arranged on the workbench and a stepping motor fixedly arranged at the acting end of a piston rod of the lifting air cylinder, a connecting plate is fixedly arranged on an output shaft of the stepping motor, and a vacuum pipe extending leftwards to the position over the hair grinding device is fixedly arranged in the connecting plate. The cap pulling mechanism comprises a cap pulling air cylinder fixedly arranged on the workbench, and a hollow disc is fixedly arranged at the acting end of a piston rod of the cap pulling air cylinder. The plastic pipe blanking device has the beneficial effects that the working intensity of operators is greatly reduced, and the plastic pipe blanking efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pulling off a plastic cover on a plastic tube, in particular to an automatic unloading mechanism for a hair grinding device. Background Art

[0002] Human hair contains substances that the public security organs need to collect. In order to fully and quickly extract the substances to be tested in the hair, the testing agency uses a hair grinding device to grind the hair. The method of grinding the hair using the hair grinding device is:

[0003] S1. The operator takes out a plastic tube 1, such as Figure 1 As shown, a portion of the collected hair is cut into multiple sections, and then the multiple sections of hair are placed into the plastic tube 1 from the top port thereof, and at the same time, a certain amount of steel balls are placed into the plastic tube 1, and then a certain amount of solvent is injected into the plastic tube 1. After the solvent is injected, the operator covers the top of the plastic tube 1 with a plastic cover 2, as shown in FIG. Figure 2 As shown;

[0004] S2. The operator inserts the plastic tube 1 into the mounting hole 4 of the hair grinding device 3 from top to bottom, thereby installing the first plastic tube 1. Repeating the above operation, a plastic tube 1 can be installed in each of the multiple mounting holes 4 in the hair grinding device 3. Figure 3 As shown;

[0005] S4, turning on the hair grinding device 3, the hair grinding device 3 rotates each plastic tube 1 installed therein, during which the steel ball squeezes the hair in the plastic tube 1, so that the substance to be detected in the hair can quickly enter the extract, thereby achieving the grinding of the hair by the hair grinding device 3;

[0006] S5. After grinding, the operator takes out each plastic tube 1 in the hair grinding device 3. After taking them out, the operator pulls out the plastic cover 2 from the plastic tube 1 to realize the unloading operation of the multiple plastic tubes 1; after opening the plastic cover 2, the operator filters the extract into a designated bottle.

[0007] Among them, in step S5, after the hair is ground, the plastic tubes 1 in the hair grinding device 3 need to be manually removed one by one, and the operator also needs to manually pull out the plastic covers 2 on the plastic tubes 1 one by one to realize the unloading of multiple plastic tubes 1. The entire operation is manually operated, which not only increases the operator's work intensity, but also increases the unloading time of the plastic tubes 1, thereby reducing the unloading efficiency of the plastic tubes 1.

[0008] Therefore, there is an urgent need for an automatic unloading mechanism that can greatly reduce the workload of operators and greatly improve the efficiency of unloading plastic pipes. Utility Model Content

[0009] The utility model aims to overcome the shortcomings of the prior art and provide an automatic feeding mechanism for a hair grinding device, which can greatly reduce the work intensity of operators and greatly improve the feeding efficiency of plastic tubes.

[0010] The purpose of the utility model is achieved by the following technical solutions: an automatic unloading mechanism for a hair grinding device, which comprises a lifting mechanism arranged on a workbench and located on the right side of the hair grinding device, and a cap pulling mechanism for pulling a plastic cap out of a plastic tube is arranged on the right side of the lifting mechanism;

[0011] The lifting mechanism comprises a lifting cylinder fixedly mounted on the workbench, a stepper motor fixedly mounted on the action end of the piston rod of the lifting cylinder, a connecting plate fixedly mounted on the output shaft of the stepper motor, a vacuum tube fixedly mounted in the connecting plate and extending to the left just above the hair grinding device, the left end of the vacuum tube being closed, a plurality of branch pipes fixedly mounted on the bottom surface of the vacuum tube along the length direction thereof, the branch pipes respectively corresponding to the plurality of mounting holes in the hair grinding device, a rubber suction head connected to the bottom of each branch pipe, the inner cavity of the rubber suction head being in communication with the inner cavity of the branch pipe, and a first vacuum pump fixedly mounted on the top surface of the connecting plate being connected at the right end of the vacuum tube;

[0012] The cap-pulling mechanism comprises a cap-pulling cylinder fixed on a workbench, a hollow disk fixed on the active end of the piston rod of the cap-pulling cylinder, a plurality of cylinders corresponding to the rubber suction heads fixed on the top surface of the hollow disk, the inner diameter of the cylinder is equal to the outer diameter of the plastic tube, a vacuum channel connected to the inner cavity of the hollow disk is opened on the bottom wall of the cylinder, a second vacuum pump is fixed on the bottom surface of the hollow disk, and a working port of the second vacuum pump is connected to the inner cavity of the hollow disk.

[0013] The right end of the vacuum tube passes through the connecting plate, a flange is fixedly arranged on the right end of the vacuum tube, and the vacuum tube is fixedly arranged on the connecting plate via the flange.

[0014] The outer diameter of the rubber suction head is smaller than the outer diameter of the plastic cover.

[0015] A mounting plate is fixedly arranged on the action end of the piston rod of the lifting cylinder, and the stepping motor is fixedly arranged on the top surface of the mounting plate.

[0016] A vertical plate is fixedly arranged on the bottom surface of the hollow disk and at the right end thereof, and the second vacuum pump is fixedly arranged on the left end surface of the vertical plate.

[0017] The automatic unloading mechanism also includes a controller, which is electrically connected to the lifting cylinder, the capping cylinder, the first vacuum pump and the second vacuum pump via a signal line.

[0018] The utility model has the following advantages: greatly reducing the working intensity of operators and greatly improving the efficiency of plastic pipe feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of a plastic pipe;

[0020] Figure 2 A schematic diagram of putting a plastic cap on the top of a plastic tube;

[0021] Figure 3 A schematic diagram of an operator installing a plastic tube in each of the plurality of mounting holes in the hair grinding device;

[0022] Figure 4 It is a structural schematic diagram of the utility model;

[0023] Figure 5 It is a structural diagram of the lifting mechanism;

[0024] Figure 6 It is a schematic diagram of the structure of the rubber suction head;

[0025] Figure 7 It is a structural schematic diagram of the cover pulling mechanism;

[0026] Figure 8 It is a schematic diagram of the connection between the hollow disk and the cylinder;

[0027] Fig. 9 for Figure 8 A top view of

[0028] Fig.10 A schematic diagram of installing a plastic tube in each of the plurality of mounting holes in the hair grinding device;

[0029] Fig.11 It is a schematic diagram showing that the bottom surface of the rubber suction tip is just pressed against the top surface of the plastic cover;

[0030] Fig.12 A schematic diagram of the plastic cover driving the plastic tube connected thereto to move upward;

[0031] Fig.13 It is a schematic diagram that each plastic tube is located directly above each cylinder;

[0032] Fig.14 It is a schematic diagram that the lower end of each plastic tube is embedded in the cylinder;

[0033] Fig.15 It is a schematic diagram of the separation of the plastic tube and the plastic cover;

[0034] In the figure:

[0035] 1- plastic tube, 2- plastic cover, 3- hair grinding device, 4- mounting hole;

[0036] 5-working table, 6-lifting mechanism, 7-capping mechanism, 8-lifting cylinder, 9-stepping motor, 10-connecting plate, 11-vacuum tube, 12-branch pipe, 13-rubber suction head, 14-first vacuum pump, 15-capping cylinder, 16-hollow disk, 17-cylinder, 18-vacuum channel, 19-second vacuum pump, 20-vertical plate. DETAILED DESCRIPTION

[0037] The utility model is further described below in conjunction with the accompanying drawings, and the protection scope of the utility model is not limited to the following:

[0038] like Figure 4~Figure 9 As shown, an automatic unloading mechanism for a hair grinding device comprises a lifting mechanism 6 arranged on a workbench 5 and located on the right side of the hair grinding device 3, and a cap pulling mechanism 7 for pulling the plastic cap 2 out of the plastic tube 1 is arranged on the right side of the lifting mechanism 6.

[0039] The lifting mechanism 6 comprises a lifting cylinder 8 fixedly mounted on the workbench 5, a stepper motor 9 fixedly mounted on the action end of the piston rod of the lifting cylinder 8, a connecting plate 10 fixedly mounted on the output shaft of the stepper motor 9, a vacuum tube 11 fixedly mounted in the connecting plate 10 and extending to the left just above the hair grinding device 3, the left end of the vacuum tube 11 is closed, a plurality of branch pipes 12 fixedly mounted on the bottom surface of the vacuum tube 11 along its length direction, the branch pipes 12 respectively corresponding to the plurality of mounting holes 4 in the hair grinding device 3, a rubber suction head 13 connected to the bottom of each branch pipe 12, the outer diameter of the rubber suction head 13 is smaller than the outer diameter of the plastic cover 2, the inner cavity of the rubber suction head 13 is connected to the inner cavity of the branch pipe 12, and a first vacuum pump 14 fixedly mounted on the top surface of the connecting plate 10 is connected to the right end of the vacuum tube 11;

[0040] The capping mechanism 7 includes a capping cylinder 15 fixedly mounted on the workbench 5, a hollow disk 16 fixedly mounted on the active end of the piston rod of the capping cylinder 15, a plurality of cylinders 17 corresponding to the rubber suction heads 13 fixedly mounted on the top surface of the hollow disk 16, the inner diameter of the cylinder 17 being equal to the outer diameter of the plastic tube 1, a vacuum channel 18 connected to the inner cavity of the hollow disk 16 being opened on the bottom wall of the cylinder 17, a second vacuum pump 19 fixedly mounted on the bottom surface of the hollow disk 16, and a working port of the second vacuum pump 19 connected to the inner cavity of the hollow disk 16.

[0041] A mounting plate is fixedly arranged on the action end of the piston rod of the lifting cylinder 8, and the stepping motor 9 is fixedly arranged on the top surface of the mounting plate. A vertical plate 20 is fixedly arranged on the bottom surface of the hollow plate 16 and at its right end, and the second vacuum pump 19 is fixedly arranged on the left end surface of the vertical plate 20. The right end of the vacuum tube 11 passes through the connecting plate 10, and a flange is fixedly arranged on the right end of the vacuum tube 11, and the vacuum tube 11 is fixedly arranged on the connecting plate 10 via the flange.

[0042] The automatic unloading mechanism also includes a controller, which is electrically connected to the lifting cylinder 8, the capping cylinder 15, the first vacuum pump 14 and the second vacuum pump 19 via a signal line. The operator can control the extension or retraction of the piston rods of the lifting cylinder 8 and the capping cylinder 15 through the controller, and can also control the start or shut down of the first vacuum pump 14 and the second vacuum pump 19, which facilitates the operation of the operator and has the characteristics of a high degree of automation.

[0043] The working process of the utility model is as follows:

[0044] S1. The operator takes out a plastic tube 1, such as Figure 1 As shown, a portion of the collected hair is cut into multiple sections, and then the multiple sections of hair are placed into the plastic tube 1 from the top port thereof, and at the same time, a certain amount of steel balls are placed into the plastic tube 1, and then a certain amount of solvent is injected into the plastic tube 1. After the solvent is injected, the operator covers the top of the plastic tube 1 with a plastic cover 2, as shown in FIG. Figure 2 As shown;

[0045] S2. The operator inserts the plastic tube 1 into the mounting hole 4 of the hair grinding device 3 from top to bottom, thereby installing the first plastic tube 1. Repeating the above operation, a plastic tube 1 can be installed in each of the multiple mounting holes 4 in the hair grinding device 3. Fig.10 As shown; the hair grinding device 3 is turned on, and the hair grinding device 3 causes each plastic tube 1 installed therein to rotate. During the rotation process, the steel ball squeezes the hair in the plastic tube 1, so that the substance to be detected in the hair can quickly enter the extract, thereby realizing the grinding of the hair by the hair grinding device 3;

[0046] S3. After grinding, the operator performs the following specific steps to discharge the plastic tubes 1 in the hair grinding device 3:

[0047] S31, control the piston rod of the lifting cylinder 8 to retract downward, the piston rod drives the stepper motor 9 to move downward, the stepper motor 9 drives the connecting plate 10 to move downward, the connecting plate 10 drives the vacuum tube 11 to move downward, the vacuum tube 11 drives each branch pipe 12 to move downward, the branch pipe 12 drives the rubber suction head 13 to move downward, each rubber suction head 13 moves toward each plastic cover 2 accordingly, when the piston rod of the lifting cylinder 8 is fully retracted, the bottom surface of the rubber suction head 13 just presses on the top surface of the plastic cover 2, as shown in FIG. Fig.11 As shown;

[0048] S32, controlling the first vacuum pump 14 to start, the first vacuum pump 14 evacuates the inner cavity of the vacuum tube 11, the inner cavity of the branch tube 12 and the inner cavity of the rubber suction head 13, and the plastic cover 2 is adsorbed and fixed on the rubber suction head 13 under negative pressure;

[0049] S33, the piston rod of the control lifting cylinder 8 extends upward, the piston rod drives the stepping motor 9 and the connecting plate 10 to move upward, the connecting plate 10 drives the vacuum tube 11 to move upward, the vacuum tube 11 drives the branch pipe 12 to move upward, the branch pipe 12 drives the rubber suction head 13 to move upward, the rubber suction head 13 drives the plastic cover 2 to move upward, and the plastic cover 2 drives the plastic tube 1 connected thereto to move upward, such as Fig.12 As shown, the plastic pipe 1 is lifted up;

[0050] S34, control the stepper motor 9 to start, the stepper motor 9 drives the connecting plate 10 to rotate in the horizontal direction, the connecting plate 10 drives the vacuum tube 11 to rotate in the horizontal direction, the vacuum tube 11 drives the branch tube 12 and the rubber suction head 13 to rotate synchronously, the rubber suction head 13 drives the plastic cover 2 to rotate synchronously, the plastic cover 2 drives the plastic tube 1 to rotate synchronously, after the plastic tube 1 rotates 180°, the controller controls the stepper motor 9 to turn off, at this time, each plastic tube 1 is respectively located directly above each cylinder 17 of the capping mechanism 7, as shown in FIG. Fig.13 As shown;

[0051] S35, the piston rod of the cap-pulling cylinder 15 of the cap-pulling mechanism 7 is extended upward, the piston rod drives the hollow disk 16 to move upward, and the hollow disk 16 drives each cylinder 17 to move toward each plastic tube 1. When the piston rod of the cap-pulling cylinder 15 is fully extended, the lower end of each plastic tube 1 is embedded in the cylinder 17. Fig.14 As shown;

[0052] S36, controlling the second vacuum pump 19 to start, the second vacuum pump 19 evacuates the inner cavity of the hollow disk 16 and the vacuum channel 18, and the plastic tube 1 is adsorbed and fixed in the cylinder 17 under negative pressure;

[0053] S37, the piston rod of the cover-pulling cylinder 15 is controlled to retract downward, the piston rod drives the hollow disk 16 to move downward, the hollow disk 16 drives the cylinder 17 to move downward, the cylinder 17 drives the plastic tube 1 to move downward, and the plastic cover 2 is adsorbed on the rubber suction head 13, so that the plastic tube 1 is separated from the plastic cover 2, as shown in FIG. Fig.15 As shown, the plastic cover 2 is pulled off from the plastic tube 1, and finally the plastic tubes 1 in the hair grinding device 3 are unloaded;

[0054] S4. After each plastic tube 1 is unloaded, the operator controls the first vacuum pump 14 and the second vacuum pump 19 to close, and the operator takes the plastic tube 1 out of the barrel 17 and takes out the extraction liquid in the barrel 17.

[0055] Among them, it can be seen from step S3 that the automatic unloading mechanism can remove the plastic caps 2 on multiple plastic tubes 1 at one time only through the linkage cooperation of the lifting cylinder 8 of the lifting mechanism 6, the first vacuum pump 14, the stepping motor 9 and the capping cylinder 15 and the second vacuum pump 19 of the capping mechanism 7, thereby quickly realizing the unloading operation of the plastic tubes 1. It can be seen that compared with the automatic unloading mechanism, the automatic unloading mechanism Figure 3 The manual unloading method shown does not require the operator to manually remove the plastic tubes 1 in the hair grinding device 3 one by one, nor does it require the operator to manually pull out the plastic covers 2 on the plastic tubes 1 one by one, thereby greatly reducing the operator's workload. In addition, it also greatly shortens the unloading time of the plastic tubes 1, thereby greatly improving the unloading efficiency of the plastic tubes 1.

[0056] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An automatic feeding mechanism for a hair grinding device, characterized in that: It comprises a lifting mechanism (6) arranged on a workbench (5) and located on the right side of the hair grinding device (3); a cap pulling mechanism (7) for pulling the plastic cap (2) out of the plastic tube (1) is arranged on the right side of the lifting mechanism (6); The lifting mechanism (6) comprises a lifting cylinder (8) fixedly mounted on the workbench (5), and a stepper motor (9) fixedly mounted on the action end of the piston rod of the lifting cylinder (8); a connecting plate (10) is fixedly mounted on the output shaft of the stepper motor (9); a vacuum tube (11) is fixedly mounted in the connecting plate (10) and extends to the left just above the hair grinding device (3); the left end of the vacuum tube (11) is closed; a plurality of branch tubes (12) are fixedly mounted on the bottom surface of the vacuum tube (11) along its length direction; the branch tubes (12) respectively correspond to a plurality of mounting holes (4) in the hair grinding device (3); a rubber suction head (13) is connected to the bottom of each branch tube (12); the inner cavity of the rubber suction head (13) is in communication with the inner cavity of the branch tube (12); and a first vacuum pump (14) fixedly mounted on the top surface of the connecting plate (10) is connected to the right end of the vacuum tube (11); The capping mechanism (7) comprises a capping cylinder (15) fixedly mounted on a workbench (5); a hollow disk (16) is fixedly mounted on the active end of a piston rod of the capping cylinder (15); a plurality of cylinders (17) corresponding to the rubber suction heads (13) are fixedly mounted on the top surface of the hollow disk (16); the inner diameter of the cylinder (17) is equal to the outer diameter of the plastic tube (1); a vacuum channel (18) connected to the inner cavity of the hollow disk (16) is formed on the bottom wall of the cylinder (17); a second vacuum pump (19) is fixedly mounted on the bottom surface of the hollow disk (16); a working port of the second vacuum pump (19) is connected to the inner cavity of the hollow disk (16).

2. The automatic feeding mechanism for a hair grinding device according to claim 1, characterized in that: The right end of the vacuum tube (11) passes through the connecting plate (10), a flange is fixedly provided on the right end of the vacuum tube (11), and the vacuum tube (11) is fixedly mounted on the connecting plate (10) via the flange.

3. The automatic unloading mechanism for a hair grinding device according to claim 1, characterized in that: The outer diameter of the rubber suction head (13) is smaller than the outer diameter of the plastic cover (2).

4. The automatic feeding mechanism for a hair grinding device according to claim 1, characterized in that: A mounting plate is fixedly arranged on the action end of the piston rod of the lifting cylinder (8), and the stepping motor (9) is fixedly arranged on the top surface of the mounting plate.

5. The automatic unloading mechanism for a hair grinding device according to claim 1, characterized in that: A vertical plate (20) is fixedly arranged on the bottom surface of the hollow disk (16) and at the right end thereof, and the second vacuum pump (19) is fixedly arranged on the left end surface of the vertical plate (20).

6. The automatic unloading mechanism for a hair grinding device according to claim 1, characterized in that: The automatic unloading mechanism also includes a controller, which is electrically connected to the lifting cylinder (8), the capping cylinder (15), the first vacuum pump (14) and the second vacuum pump (19) via signal lines.

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