CN109258853B - Differential spiral kneading and propelling type oolong continuous kneading production line - Google Patents
Differential spiral kneading and propelling type oolong continuous kneading production line Download PDFInfo
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- CN109258853B CN109258853B CN201811445934.0A CN201811445934A CN109258853B CN 109258853 B CN109258853 B CN 109258853B CN 201811445934 A CN201811445934 A CN 201811445934A CN 109258853 B CN109258853 B CN 109258853B
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- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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- A23F3/00—Tea; Tea substitutes; Preparations thereof
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- A23F3/12—Rolling or shredding tea leaves
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Abstract
The invention discloses a differential spiral kneading and propelling type continuous oolong tea kneading production line. The existing oolong tea rolling force control excessively depends on the experience of operators. The spiral barrel and the spiral shaft of the invention rotate in a differential speed manner; the thread top of the external thread of the spiral shaft is alternately opposite to the thread top and the thread bottom of the internal thread of the spiral barrel to form large and small containing cavities which are alternately changed, so that the tea leaves advance along the axial direction in the spiral barrel and move along the radial direction; the space between the spiral shaft and the spiral barrel changes from large to small along the direction from the input end to the output end of the spiral barrel, and the rolling force is gradually increased while the tea leaves are rolled and twisted under the continuous rotation of the spiral barrel and the spiral shaft, so that the tea leaves are spirally formed into strips and are rolled and molded; when the tea leaves move to the output end of the spiral barrel, the ribs of the pressing plate play a role in kneading and provide irregular extrusion force; the control module compares the signal of the pressure sensor with a preset twisting force and controls the circulating feed back speed and the twisting force. The invention realizes continuous tea rolling with good rolling effect.
Description
Technical Field
The invention belongs to the technical field of oolong tea processing, and particularly relates to a differential spiral kneading propulsion type oolong tea continuous kneading production line.
Background
The oolong tea is processed by withering, green-making, pan-frying, rolling, quickly wrapping, kneading and drying; wherein, rolling is a molding process of primary processing of oolong tea, processing operation is carried out by a rolling machine, the tea is broken and lightened by external force, and the tea is rolled into strips to form a tight and bent shape; meanwhile, part of tea juice is squeezed and attached to the surface of the tea leaves, and the tea juice also plays an important role in improving the taste and concentration of the tea. The twisting is a process with the maximum labor intensity, long time consumption and great energy consumption in the processing process, the twisting force control excessively depends on the experience of operators, particularly for operators with less experience, the processing effect is worse, the quality of materials twisted and processed at different stations is uneven, the processing effect is unsatisfactory, the product quality is influenced, and the consistency of the product quality cannot be ensured. The whole processing process needs to invest a large amount of manpower and material resources, consumes time and labor, cannot be operated continuously, has low processing efficiency, and does not accord with the development prospect of the new-era manufacturing industry with environmental protection, high efficiency and sustainable development. Therefore, the efficient, continuous and environment-friendly tea processing equipment has important significance for high-speed healthy development in the field of tea processing, and has great popularization value and practical significance.
Disclosure of Invention
The invention mainly aims at the defects and shortcomings of the prior art, provides a differential spiral kneading propulsion type oolong continuous kneading production line, further ensures the kneading quality of tea, greatly reduces the input of manpower and material resources, and has efficient and sanitary processing process.
The invention discloses a differential spiral kneading push type oolong continuous kneading production line which comprises a conveying device, a spiral kneading device and a control module.
The conveying device comprises a first belt transmission mechanism, a second belt transmission mechanism, a lifting machine, a second motor, a deblocking machine, a fourth motor, a third belt transmission mechanism and a first motor; bases of the first motor and the second motor are fixed on the fixture, and the first motor drives the first belt transmission mechanism through the chain transmission mechanism; the second motor drives the second belt transmission mechanism through the chain transmission mechanism; the first conveying belt of the first belt transmission mechanism and the second conveying belt of the second belt transmission mechanism are positioned at the same height; a blanking port is arranged between the first conveying belt and the second conveying belt; the conveying directions of the first conveying belt and the second conveying belt face the blanking port; the blanking part at the upper end of the elevator is arranged right above the second conveying belt; the elevator comprises a third motor and a chain transmission mechanism, wherein the third motor drives a driving shaft of the elevator through the chain transmission mechanism; the deblocking machine is fixedly arranged right above the lower end of the lifting machine through a mould frame; the discharging end of a third conveying belt of the third belt transmission mechanism is arranged right above the deblocking machine, a base of a fourth motor is fixed on the molding frame, and the fourth motor drives the third belt transmission mechanism through a chain transmission mechanism.
The spiral twisting device comprises a pressing plate, a pressing plate spring, a spiral shaft, a fifth motor, a rear fixed barrel, a pressure sensor, a first carrier roller set, a sixth motor, a spiral barrel, a driving shaft, a second carrier roller set, a cylinder, a rack and a front fixed barrel; supporting holes are formed in the centers of the front fixing barrel and the rear fixing barrel; a supporting hole formed in the center of the pressure plate is coaxial with a supporting hole of the rear fixed barrel; the pressing plate is arranged in the rear fixed barrel and is connected with the rear fixed barrel through a pressing plate spring; the two ends of the screw shaft are respectively provided with an integrally formed supporting shaft, the supporting shaft at one end is supported on the supporting hole of the front fixed barrel through a bearing, and the supporting shaft at the other end passes through the supporting hole of the pressure plate and the supporting hole of the rear fixed barrel and is supported on the supporting hole of the rear fixed barrel through a bearing; the fifth motor drives the screw shaft through a fourth belt transmission mechanism; the base of the fifth motor, the front fixing barrel and the rear fixing barrel are fixed on the cylinder kneading frame; the pressure sensor is fixed on the surface of the pressure plate; the first carrier roller group consists of two first carrier rollers; the second carrier roller group consists of two second carrier rollers; the two driving shafts are symmetrically arranged at two sides of the bottom of the spiral barrel, and the driving shafts and the kneading barrel form a rotating pair; a first carrier roller and a second carrier roller are respectively fixed at two ends of each driving shaft; the two first carrier rollers are arranged in an axial alignment manner along the driving shaft, and the two second carrier rollers are arranged in an axial alignment manner along the driving shaft; the sixth motor drives one of the driving shafts through a fifth belt transmission mechanism, and the driving shaft is fixed with a driving chain wheel; a base of a sixth motor is fixed on the cylinder kneading frame; the spiral barrel is coaxially sleeved outside the spiral shaft and is arranged on the two second carrier rollers and the two second carrier rollers; spaces are arranged between the two ends of the spiral barrel and the front and rear fixed barrels; the top of the front fixed barrel is provided with a feed inlet, and the feed inlet is positioned right below a blanking port of the conveying device; the bottom of the rear fixed barrel is provided with a discharge hole; a driven chain wheel ring is fixedly sleeved outside the spiral barrel; the driven chain wheel ring is connected with the driving chain wheel through a chain; one end of the kneading barrel frame is hinged with the frame, and the other end of the kneading barrel frame is propped against the frame by a piston rod of the cylinder; the base body of the cylinder is fixed on the frame; the inclination angle of the barrel kneading frame is between 30 and 45 degrees.
K-line internal threads are arranged on the inner wall of the spiral barrel, k-line external threads are arranged on the spiral shaft, and k is more than or equal to 3 and less than or equal to 6; the large diameter of the external thread is smaller than that of the internal thread; the spiral barrel and the spiral shaft are equal in length; the screw pitches of the external thread of the screw shaft and the internal thread of the screw barrel are gradually reduced along the direction from the feed inlet to the discharge outlet; the maximum pitch of the internal thread of the spiral barrel is greater than that of the external thread of the spiral shaft, when the internal thread of the spiral barrel changes by one pitch, the internal thread of the spiral barrel correspondingly changes by n pitches, n is 2 or 3, and the lead angles of the external thread and the internal thread are equal; the rotation directions of the spiral barrel and the spiral shaft are consistent, and the rotation speed of the spiral shaft is greater than that of the spiral barrel. A plurality of ribs which are arranged along a spiral line and are arranged at intervals are welded on each thread crest of the spiral shaft from one end to the other end; a plurality of ribs which are arranged along a spiral line and are arranged at intervals are welded between the outer threads of every two adjacent lines on the screw shaft from one end to the other end.
The signal output end of the pressure sensor is connected with the control module, and the control signal ends of the first motor, the second motor, the third motor, the fourth motor, the fifth motor and the sixth motor are all connected with the control module.
The elevator adopts a TH-0420 type elevator of Shijiazhuang Tehao mechanical Co.
The deblocking machine adopts a YX-6CJK-40G type tea deblocking machine of Yonxing mechanical Co.
The pressing plate is provided with a plurality of ribs which are integrally formed.
The distance between the two ends of the spiral barrel and the front and rear fixed barrels is L, and L is more than or equal to 2mm and less than or equal to 3 mm.
The major diameter of the internal thread of the spiral barrel is 250-450 mm, and the minor diameter is 110mm larger than the major diameter; the major diameter of the external thread of the screw shaft ranges from 240mm to 440mm, and the minor diameter is 30mm smaller than the major diameter.
The diameter of the external thread of the screw shaft is 10mm smaller than that of the internal thread of the screw barrel.
The thread lead angles of the external thread and the internal thread are all between 15 and 30 degrees.
The invention has the beneficial effects that:
1) the tea rolling machine can make up the vacancy of a continuous tea rolling machine in the market, greatly meets the requirements of efficient and environment-friendly tea forming and processing, achieves the aim of robot changing, reduces the labor force and improves the working efficiency. 2) The axial movement of the tea is realized by the action of the spiral surface and the ribs of the spiral barrel and the spiral shaft, the conveying and twisting of the tea are realized by the design of variable screw pitch, and the efficiency is higher; the tea leaves are radially overturned and twisted by the differential operation of the spiral barrel and the spiral shaft, so that the multi-directional and irregular kneading stress of the tea leaves is realized, the tea leaf kneading and twisting process is consistent with the tea leaf stress condition under the traditional kneading and twisting process, and the kneading and twisting effect is good. 3) The pressure sensor senses the pressure change in the extrusion cavity, adjusts the rolling speed and strength in real time, has strong applicability and high intelligent degree, meets the automatic processing requirements of light, heavy and light rolling processes, and further ensures the quality of the oolong tea.
Drawings
FIG. 1 is a schematic view of a production line of the present invention;
FIG. 2 is a schematic view of the assembly of the variable pitch screw shaft and the screw barrel according to the present invention;
FIG. 3 is a schematic diagram showing the variation of the large and small cavities between the screw shaft and the screw cylinder according to the present invention;
FIG. 4 is a schematic view of the installation position of the first carrier roller set in the present invention;
FIG. 5 is a schematic diagram showing the relative positions of the screw shaft and the screw barrel according to the present invention;
FIG. 6 is a perspective view showing the structure of the screw shaft according to the present invention.
In the figure: 1. the automatic separating device comprises a first conveying belt, a second conveying belt, a lifting machine, a second motor, a 5 pressing plate, a 6 pressing plate spring, a 7 pressing plate, a spiral shaft, a 8 pressing plate, a fifth motor, a 9 pressing plate, a rear fixed barrel, a 10 pressing sensor, a 11 deblocking machine, a 12 pressing plate, a third motor, a 13 pressing plate, a fourth motor, a 14 pressing plate, a third conveying belt, a 15 pressing plate, a first carrier roller group, a 16 pressing plate, a sixth motor, a 17 pressing plate, a spiral barrel, a 18 pressing plate, a driving shaft, a 19 pressing plate, a second carrier roller group, a 20 pressing plate, a control module, a 21 air cylinder, a 22 frame, a 23 pressing plate, a front fixed barrel, a 24 pressing plate frame, a 25 pressing plate and a first motor.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in FIG. 1, the differential spiral kneading and propelling type continuous oolong tea kneading line comprises a conveying device, a spiral kneading device and a control module.
As shown in fig. 1, the conveying device includes a first belt transmission mechanism, a second belt transmission mechanism, a lifter 3, a second motor 4, a deblocking machine 11, a fourth motor 13, a third belt transmission mechanism, and a first motor 25; the bases of the first motor 25 and the second motor 4 are fixed on the jig, and the first motor 25 drives the first belt transmission mechanism through the chain transmission mechanism; the second motor 4 drives the second belt transmission mechanism through the chain transmission mechanism; the first conveying belt 1 of the first belt transmission mechanism and the second conveying belt 2 of the second belt transmission mechanism are positioned at the same height; a blanking port is arranged between the first conveying belt and the second conveying belt; the conveying directions of the first conveying belt and the second conveying belt face the blanking port; the blanking part at the upper end of the lifter 3 is arranged right above the second conveyor belt 2, so that the tea leaves are accurately fallen onto the second conveyor belt 2 after being lifted, and the lower end of the lifter is arranged on the ground; the elevator 3 adopts a TH-0420 type elevator of Shijiazhuang Tehao mechanical Co.Ltd; the hoister 3 comprises a third motor 12 and a chain transmission mechanism, and the third motor 12 drives a driving shaft of the hoister 3 through the chain transmission mechanism; the deblocking machine 11 is fixedly arranged right above the lower end of the lifting machine 3 through a mould frame, and the deblocking machine 11 adopts a YX-6CJK-40G type tea deblocking machine of Yonxing mechanical Co.Ltd; the discharge end of a third conveying belt 14 of the third belt transmission mechanism is arranged right above the deblocking machine 11, the base of a fourth motor 13 is fixed on the molding frame, and the fourth motor 13 drives the third belt transmission mechanism through a chain transmission mechanism.
As shown in fig. 1, 2 and 4, the spiral kneading device includes a pressing plate 5, a pressing plate spring 6, a spiral shaft 7, a fifth motor 8, a rear fixing tub 9, a pressure sensor 10, a first carrier roller group 15, a sixth motor 16, a spiral tub 17, a driving shaft 18, a second carrier roller group 19, a cylinder 21, a frame 22 and a front fixing tub 23; supporting holes are formed in the centers of the front fixed barrel 23 and the rear fixed barrel 9; a supporting hole formed in the center of the pressure plate 5 is coaxial with a supporting hole of the rear fixed barrel 9; the pressing plate 5 is arranged in the rear fixed barrel 9 and is connected with the rear fixed barrel 9 through a pressing plate spring 6; the pressing plate is provided with a plurality of ribs which are integrally formed; the two ends of the screw shaft 7 are respectively provided with an integrally formed supporting shaft, the supporting shaft at one end is supported on the supporting hole of the front fixed barrel through a bearing, and the supporting shaft at the other end passes through the supporting hole of the pressure plate 5 and the supporting hole of the rear fixed barrel 9 and is supported on the supporting hole of the rear fixed barrel through a bearing; the fifth motor 8 drives the screw shaft through a fourth belt transmission mechanism; the base of the fifth motor 8, the front fixed barrel 23 and the rear fixed barrel 9 are fixed on the drum frame 24; the pressure sensor 10 is fixed on the surface of the pressure plate 5; the first carrier roller group 15 is composed of two first carrier rollers; the second carrier roller group 19 is composed of two second carrier rollers; the two driving shafts 18 are symmetrically arranged at two sides of the bottom of the spiral barrel 17, and the driving shafts 18 and the kneading barrel frame 24 form a rotating pair; a first carrier roller and a second carrier roller are respectively fixed at two ends of each driving shaft 18; the two first carrier rollers are arranged in an axial alignment manner along the driving shaft, and the two second carrier rollers are arranged in an axial alignment manner along the driving shaft; the sixth motor 16 drives one of the driving shafts through a fifth belt transmission mechanism, and a driving chain wheel is fixed on the driving shaft 18; the base of the sixth motor 16 is fixed on the cylinder frame 24; the spiral barrel 17 is coaxially sleeved outside the spiral shaft 7 and is arranged on the two second carrier rollers and the two second carrier rollers; the distances between the two ends of the spiral barrel 17 and the front and rear fixed barrels are L, and L is more than or equal to 2mm and less than or equal to 3 mm; the top of the front fixed barrel is provided with a feed inlet, and the feed inlet is positioned right below a blanking port of the conveying device; the bottom of the rear fixed barrel is provided with a discharge hole; a driven chain wheel ring is fixedly sleeved outside the spiral barrel 17; the driven chain wheel ring is connected with the driving chain wheel through a chain; one end of the cylinder frame 24 is hinged with the frame 22, and the other end is propped against by a piston rod of the cylinder 21; the seat body of the cylinder 21 is fixed on the frame 22; the cylinder 21 compares the signal of the pressure sensor 10 with the twisting force demand of the twisting process according to the old tender degree of the fresh leaves and the enzyme-deactivating degree (or according to the old tender degree of the oolong tea leaves and the degree of the previous enzyme-deactivating process), and adjusts the inclination angle of the twisting barrel frame 24, wherein the specific inclination angle is 30-45 degrees.
As shown in fig. 3 and 5, the inner wall of the spiral barrel is provided with six internal threads, the major diameter of the internal threads is 250-450 mm, and the minor diameter is 110mm larger than the major diameter; the screw shaft is provided with six external threads, the major diameter of the external thread is 240-440 mm, the minor diameter is 30mm smaller than the major diameter, and the major diameter of the external thread is 10mm smaller than the major diameter of the internal thread; the length of the spiral barrel is equal to that of the spiral shaft, and the spiral barrel and the spiral shaft are all between 1m and 2 m; the outer thread of the spiral shaft and the inner thread of the spiral barrel are designed in a variable pitch mode, the pitch is gradually reduced along the direction from the feeding hole to the discharging hole, the large pitch section is mainly used for conveying tea leaves, and the small pitch section is mainly used for kneading operation; the maximum pitch of the internal thread of the spiral barrel 17 is greater than that of the external thread of the spiral shaft 7, when the internal thread of the spiral barrel 17 changes by one pitch, the internal thread of the spiral barrel 17 correspondingly changes by n pitches, and n is 2 or 3, so that the space between the spiral shaft 7 and the spiral barrel 17 changes from large to small along the axial direction of the spiral shaft to be used for the rolling operation of tea leaves; the lead angles of the external thread and the internal thread are consistent and are all between 15 and 30 degrees, and the lead angles are determined by actual processing conditions; the rotation directions of the spiral barrel and the spiral shaft are consistent, the rotation speed of the spiral shaft is set to 45-55 revolutions per minute, the rotation speed of the spiral barrel is set to 5-10 revolutions per minute, and the spiral barrel and the spiral shaft always have speed difference, so that the external thread crest of the spiral shaft and the internal thread crest and the thread bottom of the spiral barrel are alternately opposite on the same cross section, and therefore large and small containing cavities are alternately changed, tea leaves advance in the spiral barrel along the axial direction and move along the radial direction. As shown in fig. 3 and 6, a plurality of ribs which are arranged along a spiral line and are arranged at intervals are welded on each thread crest of the spiral shaft from one end to the other end; a plurality of ribs which are arranged along a spiral line and are arranged at intervals are welded between the external threads of each two adjacent lines on the screw shaft from one end to the other end; the ribs on the spiral shaft promote the rolling and curling of the tea leaves.
As shown in fig. 1 and 2, the signal output end of the pressure sensor 10 is connected to the control module 20, and the control signal ends of the first motor, the second motor, the third motor, the fourth motor, the fifth motor and the sixth motor are all connected to the control module 20; the control module 20 controls the rotating speed and the running time of the first motor so as to control the feeding amount in the spiral barrel; the control module 20 compares the signal of the pressure sensor 10 with the twisting force requirement (based on the old tender degree of oolong tea leaves and the degree of the previous water-removing process) of the twisting process, and controls the rotating speeds of the second motor, the third motor, the fourth motor, the fifth motor and the sixth motor and the position of the push rod of the air cylinder 21, so that the rotating speeds of the second conveyer belt, the third conveyer belt, the hoister, the spiral barrel 17 and the spiral shaft 7 and the inclination angle of the twisting barrel frame 24 are adjusted, and the purposes of controlling the circulating material returning speed and the spiral twisting force of the oolong tea leaves are achieved.
The differential spiral kneading propulsion type oolong continuous kneading process comprises the following specific steps:
firstly, tea materials are fed by a first conveyor belt 1 with a transmission mechanism, fall into a feed inlet of a front fixed barrel through a blanking port and then enter a spiral barrel 17;
step two, the sixth motor 16 drives the driving shaft to further drive the spiral barrel 17 to rotate at a rotating speed n2, and simultaneously the spiral shaft 7 is driven by the fifth motor 8 to rotate at a rotating speed n 1; under the conveying action of the six-line internal thread large-pitch section of the spiral barrel 17 and the six-line external thread large-pitch section of the spiral shaft 7, tea leaves are rapidly pushed forwards along the axis; because the spiral barrel and the spiral shaft have speed difference, on the same cross section, the thread top of the external thread of the spiral shaft is alternately opposite to the thread top and the thread bottom of the internal thread of the spiral barrel, so that large and small containing cavities are alternately changed, and the tea leaves advance along the axial direction in the spiral barrel and simultaneously move along the radial direction; a large amount of tea leaves are gathered inside and are in a rolling and twisting state during movement; the tea leaves enter the six-line internal thread small-pitch section of the spiral barrel 17 and the six-line external thread small-pitch section of the spiral shaft 7 along with the axial movement to be twisted; under the continuous rotation of the spiral barrel 17 and the spiral shaft 7, the rolling force is gradually increased while the tea leaves are rolled and twisted, and the tea leaves are continuously turned and twisted to be promoted to be spirally twisted into strips, thereby simulating the traditional rolling and forming process. The ribs on the screw shaft 7 further promote the tea to turn and randomly bear force in multiple directions in the whole process of axial movement of the tea; when the tea leaves move to the output end of the spiral barrel 17, the ribs on the pressing plate 5 play a role in kneading and provide irregular extrusion force; the pressure sensor 10 on the pressure plate 5 monitors the pressure of the pressure plate in real time and feeds back the pressure to the control module 20; the control module 20 compares the signal of the pressure sensor 10 with the twisting force requirement (based on the old tender degree of oolong tea leaves and the degree of the previous water-removing process) of the twisting process, and controls the rotating speeds of the second motor, the fourth motor, the third motor, the fifth motor and the sixth motor and the position of the push rod of the air cylinder 21, so that the rotating speeds of the second conveyer belt, the third conveyer belt, the hoister, the screw shaft 7 and the screw barrel 17 and the inclination angle of the barrel twisting frame 24 are adjusted, and the purposes of controlling the circulating material returning speed and the screw twisting force of the oolong tea leaves are achieved. Then, the tea leaves fall onto the third conveyer belt 14 through the discharge hole of the rear fixed barrel 9; the third conveyer belt 14 conveys the tea leaves to the deblocking machine 11 for sufficient scattering, and the tea leaves fall onto the lifting machine 3 after scattering; the elevator 3 conveys the tea leaves to the second conveyer belt 2 towards the upper end, and the second conveyer belt 2 further conveys the tea leaves to the blanking port;
step three, repeating the step one and the step two until the tea feeding amount conveyed into the spiral barrel by the first conveying belt of the first belt transmission mechanism reaches a preset value, controlling the first motor to stop by the control module 20, and entering the step four; wherein, the tea feeding amount conveyed into the spiral barrel by the first conveyer belt is realized by controlling the rotating speed and the running time of the first motor by the control module 20;
and step four, repeating the step two, circularly rolling and shaping the tea leaves until the tea leaves meet the rolling requirement, and finally collecting the tea leaves at the outlet of the deblocking machine 11.
Further, in the second step, the control module 20 meets the rolling force and time requirements of light and heavy rolling by controlling the speed difference and duration time of the spiral barrel 17 and the spiral shaft 7; the rolling force and time requirements of light and heavy rolling have great influence on the tea strip forming and rope forming and the tea juice overflow degree.
The invention can adjust the kneading stress environment of tea to be completely consistent with the traditional kneading processing by continuously adjusting and forming proper light and heavy kneading different kneading forces and kneading time by comparing the signal of the pressure sensor 10 with the kneading force requirement of the kneading processing, has higher ball screw head forming probability under the stress environment with multi-direction and variable size in the whole tea conveying process under the action of the spiral surface and the ridge, ensures the rope forming and screw head forming effects after the tea is kneaded, can control the breakage rate of the tea, is easier to parameterize and control compared with the traditional judgment depending on experience, has higher precision and standard forming control, is easier to improve the overflow of tea juice of the oolong, and further ensures the tea fragrance foundation and the kneading effect of the oolong.
Claims (8)
1. Differential spiral is rubbed propulsive oolong tea serialization and is kneaded production line, kneads device and control module including conveyor, spiral, its characterized in that:
the conveying device comprises a first belt transmission mechanism, a second belt transmission mechanism, a lifting machine, a second motor, a deblocking machine, a fourth motor, a third belt transmission mechanism and a first motor; bases of the first motor and the second motor are fixed on the fixture, and the first motor drives the first belt transmission mechanism through the chain transmission mechanism; the second motor drives the second belt transmission mechanism through the chain transmission mechanism; the first conveying belt of the first belt transmission mechanism and the second conveying belt of the second belt transmission mechanism are positioned at the same height; a blanking port is arranged between the first conveying belt and the second conveying belt; the conveying directions of the first conveying belt and the second conveying belt face the blanking port; the blanking part at the upper end of the elevator is arranged right above the second conveying belt; the elevator comprises a third motor and a chain transmission mechanism, wherein the third motor drives a driving shaft of the elevator through the chain transmission mechanism; the deblocking machine is fixedly arranged right above the lower end of the lifting machine through a mould frame; the discharge end of a third conveying belt of the third belt transmission mechanism is arranged right above the deblocking machine, a base of a fourth motor is fixed on the molding frame, and the fourth motor drives the third belt transmission mechanism through a chain transmission mechanism;
the spiral twisting device comprises a pressing plate, a pressing plate spring, a spiral shaft, a fifth motor, a rear fixed barrel, a pressure sensor, a first carrier roller set, a sixth motor, a spiral barrel, a driving shaft, a second carrier roller set, a cylinder, a rack and a front fixed barrel; supporting holes are formed in the centers of the front fixing barrel and the rear fixing barrel; a supporting hole formed in the center of the pressure plate is coaxial with a supporting hole of the rear fixed barrel; the pressing plate is arranged in the rear fixed barrel and is connected with the rear fixed barrel through a pressing plate spring; the two ends of the screw shaft are respectively provided with an integrally formed supporting shaft, the supporting shaft at one end is supported on the supporting hole of the front fixed barrel through a bearing, and the supporting shaft at the other end passes through the supporting hole of the pressure plate and the supporting hole of the rear fixed barrel and is supported on the supporting hole of the rear fixed barrel through a bearing; the fifth motor drives the screw shaft through a fourth belt transmission mechanism; the base of the fifth motor, the front fixing barrel and the rear fixing barrel are fixed on the cylinder kneading frame; the pressure sensor is fixed on the surface of the pressure plate; the first carrier roller group consists of two first carrier rollers; the second carrier roller group consists of two second carrier rollers; the two driving shafts are symmetrically arranged at two sides of the bottom of the spiral barrel, and the driving shafts and the kneading barrel form a rotating pair; a first carrier roller and a second carrier roller are respectively fixed at two ends of each driving shaft; the two first carrier rollers are arranged in an axial alignment manner along the driving shaft, and the two second carrier rollers are arranged in an axial alignment manner along the driving shaft; the sixth motor drives one of the driving shafts through a fifth belt transmission mechanism, and the driving shaft is fixed with a driving chain wheel; a base of a sixth motor is fixed on the cylinder kneading frame; the spiral barrel is coaxially sleeved outside the spiral shaft and is arranged on the two second carrier rollers and the two second carrier rollers; spaces are arranged between the two ends of the spiral barrel and the front and rear fixed barrels; the top of the front fixed barrel is provided with a feed inlet, and the feed inlet is positioned right below a blanking port of the conveying device; the bottom of the rear fixed barrel is provided with a discharge hole; a driven chain wheel ring is fixedly sleeved outside the spiral barrel; the driven chain wheel ring is connected with the driving chain wheel through a chain; one end of the kneading barrel frame is hinged with the frame, and the other end of the kneading barrel frame is propped against the frame by a piston rod of the cylinder; the base body of the cylinder is fixed on the frame; the inclination angle of the barrel kneading frame is between 30 and 45 degrees;
k-line internal threads are arranged on the inner wall of the spiral barrel, k-line external threads are arranged on the spiral shaft, and k is more than or equal to 3 and less than or equal to 6; the large diameter of the external thread is smaller than that of the internal thread; the spiral barrel and the spiral shaft are equal in length; the screw pitches of the external thread of the screw shaft and the internal thread of the screw barrel are gradually reduced along the direction from the feed inlet to the discharge outlet; the maximum pitch of the internal thread of the spiral barrel is greater than that of the external thread of the spiral shaft, when the internal thread of the spiral barrel changes by one pitch, the external thread of the spiral shaft correspondingly changes by n pitches, n is 2 or 3, and the lead angles of the external thread and the internal thread are equal; the rotation directions of the spiral barrel and the spiral shaft are consistent, and the rotating speed of the spiral shaft is greater than that of the spiral barrel; a plurality of ribs which are arranged along a spiral line and are arranged at intervals are welded on each thread crest of the spiral shaft from one end to the other end; a plurality of ribs which are arranged along a spiral line and are arranged at intervals are welded between the external threads of each two adjacent lines on the screw shaft from one end to the other end;
the signal output end of the pressure sensor is connected with the control module, and the control signal ends of the first motor, the second motor, the third motor, the fourth motor, the fifth motor and the sixth motor are all connected with the control module.
2. The differential spiral kneading push type oolong tea continuous kneading line as claimed in claim 1, wherein: the elevator adopts a TH-0420 type elevator of Shijiazhuang Tehao mechanical Co.
3. The differential spiral kneading push type oolong tea continuous kneading line as claimed in claim 1, wherein: the deblocking machine adopts a YX-6CJK-40G type tea deblocking machine of Yonxing mechanical Co.
4. The differential spiral kneading push type oolong tea continuous kneading line as claimed in claim 1, wherein: the pressing plate is provided with a plurality of ribs which are integrally formed.
5. The differential spiral kneading push type oolong tea continuous kneading line as claimed in claim 1, wherein: the distance between the two ends of the spiral barrel and the front and rear fixed barrels is L, and L is more than or equal to 2mm and less than or equal to 3 mm.
6. The differential spiral kneading push type oolong tea continuous kneading line as claimed in claim 1, wherein: the major diameter of the internal thread of the spiral barrel is 250-450 mm, and the major diameter of the internal thread of the spiral barrel is 110mm larger than the minor diameter of the internal thread of the spiral barrel; the major diameter of the external thread of the screw shaft is 240-440 mm, and the minor diameter of the external thread of the screw shaft is 30mm smaller than that of the external thread of the screw shaft.
7. The differential spiral kneading push type oolong tea continuous kneading line as claimed in claim 1, wherein: the diameter of the external thread of the screw shaft is 10mm smaller than that of the internal thread of the screw barrel.
8. The differential spiral kneading push type oolong tea continuous kneading line according to any one of claims 1 to 6, characterized in that: the thread lead angles of the external thread and the internal thread are all between 15 and 30 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1362026A (en) * | 2002-01-15 | 2002-08-07 | 华中科技大学 | Continuous tea kneading machine |
| CN202062635U (en) * | 2011-04-15 | 2011-12-07 | 北京化工大学 | Differential cone-shaped double-screw extruder |
| CN203279782U (en) * | 2013-05-10 | 2013-11-13 | 福建农林大学 | Automatic tea rolling and scattering machine |
| CN103768973A (en) * | 2014-02-19 | 2014-05-07 | 上海天一高德机电实业有限公司 | Self-cleaning type double-helical-ribbon differential velocity mixer |
| CN108450582A (en) * | 2017-09-14 | 2018-08-28 | 余慧文 | A kind of twisting device for oolong tea processing |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6446235B2 (en) * | 2014-10-27 | 2018-12-26 | 東芝機械株式会社 | Extruder and kneading equipment |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1362026A (en) * | 2002-01-15 | 2002-08-07 | 华中科技大学 | Continuous tea kneading machine |
| CN202062635U (en) * | 2011-04-15 | 2011-12-07 | 北京化工大学 | Differential cone-shaped double-screw extruder |
| CN203279782U (en) * | 2013-05-10 | 2013-11-13 | 福建农林大学 | Automatic tea rolling and scattering machine |
| CN103768973A (en) * | 2014-02-19 | 2014-05-07 | 上海天一高德机电实业有限公司 | Self-cleaning type double-helical-ribbon differential velocity mixer |
| CN108450582A (en) * | 2017-09-14 | 2018-08-28 | 余慧文 | A kind of twisting device for oolong tea processing |
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| CN109258853A (en) | 2019-01-25 |
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