CN114223744B

CN114223744B - Automatic discharging and pinching machine

Info

Publication number: CN114223744B
Application number: CN202111630643.0A
Authority: CN
Inventors: 叶良金; 孙宏水
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2023-07-21
Anticipated expiration: 2041-12-28
Also published as: CN114223744A

Abstract

The invention discloses an automatic discharging tip pinching machine which comprises a frame, a conveying device arranged on the frame, a mounting base transversely arranged above the conveying device, and a screw rod module arranged on the mounting base, wherein the screw rod module comprises a sliding table, a travelling mechanism is connected on the sliding table, and at least two groups of tip pinching devices are arranged on the travelling mechanism at intervals. The screw rod module comprises a screw rod driving motor, and the conveying device comprises a conveying driving motor; the pinching device is connected with a leaf feeding driving motor; and a control circuit for controlling the linkage of the screw rod driving motor, the conveying driving motor and the feeding driving motor is also arranged. The automatic tea discharging device can realize automatic discharging of the formed tea leaves after pinching and shaping, greatly improves the processing efficiency of the tea leaves, has a simple structure, low cost and convenient maintenance, and can be widely applied to the field of production and processing of flat tea, in particular to Taiping Houkui.

Description

Automatic discharging and pinching machine

Technical Field

The invention relates to the technical field of tea processing machinery, in particular to an automatic discharging and tip pinching machine.

Background

One of the traditional Chinese famous tea and the historical Chinese famous tea belongs to green tea type tip tea, is produced in Tai Ping county (yellow mountain area of Huangshan city instead), is a top grade of tip tea and has long-lasting full-name. The appearance of the two-leaf bud-holding type tea is flat, straight, natural, stretched and dull, and has the name of 'Houkui two-head tip, no scattering, no warping and no curling'. In the processing of Taiping Houkui, tea leaves need to be pinched to form after being fried, then the tea leaves after being formed are distributed on a screen, and then the tea leaves are sent to a drying device for drying. The existing pinching machine needs to manually put tea leaves after compression molding, and automatic placement of tea leaves after pinching cannot be achieved, so that even though the pinching machine is rapid in molding speed, subsequent manual placement is needed, machining efficiency is difficult to improve, manpower and material resources are extremely consumed, and the pinching machine is a main reason that the price of the existing too flat Houkui tea leaves is high. Meanwhile, most of the existing equipment adopts programs such as a PLC and the like to control the operation of a motor and related parts thereof, tea farmers find that the PLC equipment is easy to break down after being used for one or two years, the tea farmers have low common cultural degree, few people can maintain the equipment, and the maintenance cost is high, so that a plurality of PLC microcomputer control equipment cannot be used any more after being used for two years.

Disclosure of Invention

The invention aims to provide an automatic discharging tip kneading machine, which solves the problems that the existing processing of Taiping Houkui tea requires manual discharging, wastes time and labor and has high processing cost.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides an automatic material is arranged and is pinched point machine, includes the frame, sets up conveyor in the frame, conveyor's top transversely is provided with the installation base, is provided with the lead screw module on the installation base, and the lead screw module includes the slip table, the connection is provided with running gear on the slip table, at least two sets of point devices are pinched to running gear upper interval installation.

The device comprises a screw rod driving motor, a conveying device and a conveying belt driven by the conveying driving motor, wherein the screw rod driving motor is used for accurately controlling the screw rod module, the conveying device and the pinching device to work; the travelling mechanism is provided with a leaf feeding driving motor for controlling the tip pinching device to work; the control circuit is also arranged for controlling the linkage of the screw rod driving motor, the conveying driving motor and the leaf feeding driving motor;

the control circuit comprises a left side travel switch and a right side travel switch which are arranged on the mounting base and are respectively positioned at the left and right movement travel end points of the travelling mechanism, and the travelling mechanism is provided with a shift block matched with the left side travel switch and the right side travel switch; the mounting base is also provided with a first travel switch which synchronously works with the left travel switch and a second travel switch which synchronously works with the right travel switch; the left side travel switch is electrically connected with a first electric push rod, the right side travel switch is electrically connected with a second electric push rod, the screw rod driving motor is connected with a screw rod motor speed regulator, the positive and negative transfer line end of the screw rod motor speed regulator is electrically connected with a positive and negative rotation switch, and the first electric push rod and the second electric push rod drive the positive and negative rotation switch to act so as to control the positive rotation interface or the negative rotation interface of the screw rod motor speed regulator to be conducted so as to control the positive rotation and the negative rotation of the screw rod driving motor;

the first travel switch and the second travel switch are electrically connected and provided with a first time relay which is used for controlling the first time relay to work, and the first time relay is electrically connected with the conveying driving motor to control the conveying driving motor to work; the first time relay is also electrically connected with a third electric push rod; and a third travel switch for controlling the on-off of the main circuit is arranged on the main circuit of the screw rod driving motor and the main circuit of the feed blade driving motor, and the third electric push rod controls the third travel switch to work.

In order to control intermittent movement of the travelling mechanism, a second time relay for controlling on-off of a lead screw driving motor circuit is further arranged on a main circuit of the lead screw driving motor.

In order to avoid overlarge thrust, the first electric push rod, the second electric push rod and the third electric push rod are powered by a 24V direct current power supply.

In order to improve the forming effect, each group of the pinching devices comprises pinching upper pressing rollers and pinching lower pressing rollers which are matched with each other, and a group of pinching forming grooves are formed in the pinching upper pressing rollers or the pinching lower pressing rollers at intervals; one side of the pinching upper pressing roller and the pinching lower pressing roller is provided with a tea inserting device, at least two tea inserting holes are formed in the tea inserting device, and the pinching forming grooves correspond to the tea inserting holes in position.

For guaranteeing running gear's stability, reduce the pressure of slip table, improve the life of lead screw module, be provided with two support spouts on the installation base, running gear's bottom is provided with and supports spout complex draw runner.

The invention has the beneficial effects that: the control circuit controls the forward and reverse rotation of the screw rod driving motor, controls the conveying driving motor and the feeding driving motor to rotate, and simultaneously coordinates the actions of the screw rod driving motor, the conveying driving motor and the feeding driving motor to accurately control the operation of the equipment. The control circuit discards the existing PLC microcomputer control, adopts the most original circuit structure for control, and has the advantages of low cost and convenient maintenance. According to the automatic tea leaf feeding and discharging device, the screw rod module drives the pinching device to move back and forth above the conveying device, and the pinching device can uniformly arrange the pinched tea leaves on the conveying device in combination with high-precision operation of the screw rod, so that an automatic discharging function is realized, and the problems that after pinching of the tea leaves by the existing pinching machine is completed, the tea leaves are stacked in disorder, and when being dried, the tea leaves need to be discharged again manually, so that manpower and material resources are consumed, and the processing efficiency is low are solved. The pinching devices can uniformly distribute a plurality of pinching devices in the width direction of the conveying device according to the width of the conveying device, and pinching is performed at the same time. The pinching point forming groove on the pinching point upper pressing roller or pinching point lower pressing roller can realize better forming of Houkui tea, the pinching point forming groove is designed to enable the tea to be difficult to break in the stem part during forming, effective substances in the tea are difficult to volatilize, the tea is difficult to scatter in tightening, and the tea strip shape is regular. The support sliding groove can better support the travelling mechanism, and the situation that the service life of the screw rod module is influenced due to overlarge stress of the screw rod module is avoided.

The invention will be described in more detail below with reference to the drawings and examples.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of a pinching device according to the present invention.

Fig. 3 is a schematic diagram of the structures of the upper press roll and the lower press roll of the present invention.

Fig. 4 is a schematic perspective view of a screw module according to the present invention.

Fig. 5 is a top view of the screw module of the present invention.

Fig. 6 is a side view of the lead screw module of the present invention.

Fig. 7 is a cross-sectional view of the support runner and runner of the present invention.

Fig. 8 is a control circuit diagram of the present invention.

Detailed Description

The embodiment is shown in fig. 1 to 8, an automatic discharging tip pinching machine comprises a frame 1, a conveying device 2 arranged on the frame 1, a mounting base 3 is transversely arranged above the conveying device 2, a screw rod module 4 is arranged on the mounting base 3, the screw rod module 4 comprises a screw rod 43, a sliding table 41 which moves back and forth along with the screw rod 43 and a screw rod driving motor 42 which drives the screw rod 43 to rotate positively and negatively, a travelling mechanism 5 which moves along with the sliding table 41 is connected on the sliding table 41, at least two groups of tip pinching devices 6 are arranged on the travelling mechanism 5 at intervals, and preferably 2 groups of tip pinching devices are adopted. In order to ensure the stability of the movement of the travelling mechanism 5, two supporting sliding grooves 31 are formed in the mounting base 3, sliding strips 51 matched with the supporting sliding grooves 31 are arranged at the bottom of the travelling mechanism 5, and the sliding strips 51 slide back and forth in the supporting sliding grooves 31.

The conveying device 2 comprises a conveying driving motor 21 and a conveying belt 22 driven by the conveying driving motor 21, and the conveying driving motor 21 is connected with a conveying motor speed regulator 23 for regulating the revolution of the conveying driving motor 21. The heating and drying device can be directly arranged behind the conveying belt 22, and the tea leaves after the pinching and shaping can directly fall on the conveying belt 22 and be conveyed into the rotary drying device for drying. Multiple screens can also be placed on the conveyor belt 22, with the tea leaves being evenly arranged on the screens, and then dried by moving the screens into the drying apparatus.

Each group of pinching devices 6 comprises pinching upper press rollers 61 and pinching lower press rollers 62 which are matched with each other, a tea output shaft 65, and a leaf feeding driving motor 66 which drives the pinching upper press rollers 61, the pinching lower press rollers 62 and the tea output shaft 65 to rotate, wherein the two groups of pinching devices 6 are driven by one leaf feeding driving motor 66, and the two tea output shafts 65 are connected through a connecting shaft 67. In order to improve the forming effect, a group of pinching point forming grooves 63 are arranged on the pinching point upper pressing roller 61 or the pinching point lower pressing roller 62 at intervals; the feeding ends of the pinching upper press roller 61 and the pinching lower press roller 62 are provided with tea inserting devices 64, the tea inserting devices 64 are at least provided with two tea inserting holes 641, tea is alternately inserted, the pinching forming grooves 63 correspond to the tea inserting holes 641 in position, and tea enters the pinching forming grooves 63 from the tea inserting holes 641. The number of the tea insertion holes 641 is preferably 3, and the specifications of the tea insertion holes 641 can be slightly different so as to meet the processing requirements of tea leaves with different thicknesses, or the same specifications can be adopted, so that alternate tea insertion can be realized, and the processing efficiency can be improved.

The discharge end of the pinching device 3 is provided with a discharge hopper 68, and the discharge end of the discharge hopper 68 is a rectangular flat port 681 which is matched with the shape of tea. By the back and forth movement of the pinching device 6, the tea leaves after pinching and shaping are discharged from the discharge hopper 68, and the tea leaves are kept in the same direction by the rectangular flat opening 681 to fall onto the lower conveyor belt 22 or placed on the screen mesh on the conveyor belt 22, so that automatic discharge is completed. The specific working cooperation structure of the pinching device 6 can refer to a tip arranging machine structure related in Chinese patent with the name of a flat tea pinching machine, wherein the application number of the application is 2021215333012 in 7/2021.

For accurately controlling the operation of the automatic discharging and pinching machine, a control circuit for controlling the linkage of the screw rod driving motor 42, the conveying driving motor 21 and the feeding driving motor 66 is also arranged. The control circuit comprises a left side travel switch 7 and a right side travel switch 8 which are arranged on the mounting base 3 and are respectively positioned at the left and right movement travel end points of the travelling mechanism 5, a shift 9 matched with the left side travel switch 7 and the right side travel switch 8 is arranged on the travelling mechanism 5, and the shift 9 presses the left side travel switch 7 and the right side travel switch 8 to control the circuit on-off. The mounting base 3 is also provided with a first travel switch 10 which synchronously works with the left travel switch 7 and a second travel switch 11 which synchronously works with the right travel switch 8. The shift 9 presses the left-hand travel switch 7 and the first travel switch 10 simultaneously or the right-hand travel switch 8 and the second travel switch 11 simultaneously. The left side travel switch 7, the right side travel switch 8, the first travel switch 10 and the second travel switch 11 are all normally open switches. The left side travel switch 7 is electrically connected with a first electric push rod 12, the right side travel switch 8 is electrically connected with a second electric push rod 13, the lead screw driving motor 42 is connected with a lead screw motor speed regulator 14, the positive and negative transfer line end of the lead screw motor speed regulator 14 is electrically connected with a positive and negative rotation switch 15, the positive and negative rotation switch 15 is a six-foot two-gear switch, a toggle button is arranged on the switch, the first electric push rod 12 and the second electric push rod 13 are positioned on two sides of the toggle button, and the toggle button is controlled to swing left and right. Thereby the forward rotation interface or the reverse rotation interface of the control screw motor speed regulator 14 is conducted to control the forward rotation and the reverse rotation of the screw driving motor 42.

The first travel switch 10 and the second travel switch 11 are electrically connected and provided with a first time relay 16 for controlling the first time relay 16 to work, and the first time relay 16 is electrically connected with the conveying driving motor 21 for controlling the conveying driving motor 21 to work; the first time relay 16 is also electrically connected with a third electric push rod 17; the main circuits of the screw rod driving motor 42 and the feed blade driving motor 66 are provided with a third travel switch 18 for controlling the on-off of the main circuit, the third travel switch 18 is a normally closed switch, the third electric push rod 17 is electrified, and the electric push rod stretches out to act on the contact of the third travel switch 18 to disconnect the third travel switch 18. The main circuit is the energizing circuit of the screw drive motor 42 and the feed blade drive motor 61. In order to control intermittent movement of the travelling mechanism, a second time relay 19 for controlling the on-off of the circuit of the screw driving motor 42 is further arranged on the main circuit of the screw driving motor 42, and the second time relay 19 is intermittently on-off according to set time, so that the screw driving motor 42 is in intermittent power-on operation.

The concrete working mode is as follows: setting the running mechanism 5 at the leftmost position in the initial state, wherein a shift gear 9 on the running mechanism 5 is pressed on the left-side running switch 7 and the first running switch 10, and the left-side running switch is used for switching the left-side running switch; and the first travel switch 10 is turned on. The left side travel switch 7 is conducted, the first electric push rod 12 is electrified, the telescopic rod of the first electric push rod 12 stretches out to push the poking button on the forward and backward rotation switch 15 to poke right, at the moment, the COW and the CM on the screw motor speed regulator 14 are connected, namely, a motor forward rotation circuit is connected, and the screw motor speed regulator 14 controls the screw driving motor 42 to rotate forward. Simultaneously, the first travel switch 10 is turned on, so that the first time relay 16 is in a conducting state, the first time relay 16 is turned on, the third electric push rod 17 works, the telescopic rod stretches out, the contact on the third travel switch 18 is pushed to disconnect the third travel switch 18, the main circuits of the leaf feeding driving motor 66 and the screw driving motor 42 are disconnected, and the leaf feeding driving motor 66 and the screw driving motor 42 are in a stop state. When the first time relay 16 is conducted, the conveying driving motor 21 is electrified to work so as to drive the conveying belt 22 to move forwards, the first time relay 16 is powered off after being conducted for N seconds, and the conducting time can be set according to actual conditions. The transport driving motor 21 is powered off to stop the operation, and the transport belt 22 is stopped after advancing a certain distance. When the first time relay 16 is disconnected, the third electric push rod 17 returns, the third travel switch 18 is switched on, the leaf feeding driving motor 66 and the screw rod driving motor 42 work, the screw rod driving motor 42 rotates positively, the screw rod module 4 drives the travelling mechanism 5 to move rightwards, meanwhile, under the action of the second time relay 19, the travelling mechanism 5 intermittently moves rightwards, and in the moving process, the leaf feeding driving motor 66 rotates to complete pinching and forming of tea leaves. When the travelling mechanism 5 moves to the rightmost end, the shift gear 9 is pressed on the right side travel switch 8 and the second travel switch 11, the right side travel switch 8 and the second travel switch 11 are simultaneously turned on, the right side travel switch 8 is turned on, the second electric push rod 13 is electrified, the shift button on the forward and reverse rotation switch 15 is pushed to the left, at the moment, the cow and ccm on the screw motor speed regulator 14 are conducted, namely, a motor reversing circuit is turned on, and the screw motor speed regulator 14 controls the screw driving motor 42 to reverse. Simultaneously, the second travel switch 11 is turned on, so that the first time relay 16 is in a conducting state, the first time relay 16 is turned on, the third electric push rod 17 works, the telescopic rod stretches out, the contact on the third travel switch 18 is pushed to disconnect the third travel switch 18, the main circuits of the leaf feeding driving motor 66 and the screw driving motor 42 are disconnected, and the leaf feeding driving motor 66 and the screw driving motor 42 are in a stop state. When the first time relay 16 is conducted, the conveying driving motor 21 is powered on to work so as to drive the conveying belt 22 to move forwards, the first time relay 16 is powered off after being conducted for N seconds, the conducting time can be set according to actual conditions, the conveying driving motor 21 is powered off to stop working, and the conveying belt 22 stops after a certain distance is advanced. When the first time relay 16 is disconnected, the third electric push rod 17 returns, the third travel switch 18 is switched on, the leaf feeding driving motor 66 and the screw rod driving motor 42 work, the screw rod driving motor 42 reverses, and the screw rod module 4 drives the travelling mechanism 5 to move leftwards, so that the travelling is repeated. And after the conveyor belt 22 moves a certain distance, the travelling mechanism 5 moves from the leftmost end to the rightmost end, then the travelling mechanism stops, the conveyor belt 22 moves forwards a certain distance and then stops, the travelling mechanism 5 moves again, moves from the rightmost end to the leftmost end, then the travelling mechanism stops, and the conveyor belt 22 continues to move forwards a certain distance, so that the conveyor belt 22 advances forwards, and automatic discharging is completed.

The invention is described above by way of example with reference to the accompanying drawings. It will be clear that the invention is not limited to the embodiments described above. As long as various insubstantial improvements are made using the method concepts and technical solutions of the present invention; or the invention is not improved, and the conception and the technical scheme are directly applied to other occasions and are all within the protection scope of the invention.

Claims

1. The utility model provides an automatic arrange material and pinch point machine, includes frame (1), sets up conveyor (2) on frame (1), its characterized in that: the automatic feeding device is characterized in that a mounting base (3) is transversely arranged above the conveying device (2), a screw rod module (4) is arranged on the mounting base (3), the screw rod module (4) comprises a sliding table (41), a travelling mechanism (5) is connected to the sliding table (41), and at least two groups of pinching devices (6) are arranged on the travelling mechanism (5) at intervals;

the screw rod module (4) comprises a screw rod driving motor (42), and the conveying device (2) comprises a conveying driving motor (21) and a conveying belt (22) driven by the conveying driving motor (21); a blade feeding driving motor (66) for controlling the tip pinching device (6) to work is arranged on the travelling mechanism (5); the control circuit is also provided with a control circuit for controlling the linkage of the screw rod driving motor (42), the conveying driving motor (21) and the feeding driving motor (66);

the control circuit comprises a left side travel switch (7) and a right side travel switch (8) which are arranged on the mounting base (3) and are respectively positioned at the left and right movement travel end points of the travelling mechanism (5), and a shifting block (9) matched with the left side travel switch (7) and the right side travel switch (8) is arranged on the travelling mechanism (5); the mounting base (3) is also provided with a first travel switch (10) which synchronously works with the left travel switch (7) and a second travel switch (11) which synchronously works with the right travel switch (8); the left side travel switch (7) is electrically connected with a first electric push rod (12), the right side travel switch (8) is electrically connected with a second electric push rod (13), the screw rod driving motor (42) is connected with a screw rod motor speed regulator (14), the positive and negative transfer line end of the screw rod motor speed regulator (14) is electrically connected with a positive and negative reversing switch (15), and the first electric push rod (12) and the second electric push rod (13) drive the positive and negative reversing switch (15) to act so as to control the positive rotation interface or the negative rotation interface of the screw rod motor speed regulator (14) to be conducted so as to control the positive rotation and the negative rotation of the screw rod driving motor (42);

the first travel switch (10) and the second travel switch (11) are electrically connected and provided with a first time relay (16) for controlling the first time relay (16) to work, and the first time relay (16) is electrically connected with the conveying driving motor (21) for controlling the conveying driving motor (21) to work; the first time relay (16) is also electrically connected with a third electric push rod (17); and a third travel switch (18) for controlling the on-off of the main circuit is arranged on the main circuit of the screw rod driving motor (42) and the vane feeding driving motor (66), and the third electric push rod (17) controls the third travel switch (18) to work.

2. The automatic discharging tip kneading machine according to claim 1, wherein: the main circuit of the screw rod driving motor (42) is also provided with a second time relay (19) for controlling the on-off of the circuit of the screw rod driving motor (42).

3. The automatic discharging tip kneading machine according to claim 1, wherein: the first electric push rod (12), the second electric push rod (13) and the third electric push rod (17) are powered by a 24V direct current power supply.

4. The automatic discharging tip kneading machine according to claim 1, wherein: each group of pinching devices (6) comprises pinching upper pressing rollers (61) and pinching lower pressing rollers (62) which are matched with each other, and a group of pinching forming grooves (63) are formed in the pinching upper pressing rollers (61) or the pinching lower pressing rollers (62) at intervals; one side of the pinching upper pressing roller (61) and the pinching lower pressing roller (62) is provided with a tea inserting device (64), the tea inserting device (64) is provided with at least two tea inserting holes (641), and the pinching forming groove (63) corresponds to the tea inserting holes (641).

5. The automatic discharging tip kneading machine according to claim 1, wherein: two supporting sliding grooves (31) are formed in the mounting base (3), and sliding strips (51) matched with the supporting sliding grooves (31) are arranged at the bottom of the travelling mechanism (5).