阅读说明：本技术 膨化料膨化度自动调节系统 (Automatic adjusting system for expansion degree of expanded material ) 是由 谭立超 乔高明 叶李军 于 2020-04-08 设计创作，主要内容包括：本发明公开了一种膨化料膨化度自动调节系统,包括膨化度在线检测装置、膨化度调节装置和控制装置,膨化度在线检测装置的取样气缸与取样斗连接以驱动取样斗从取样口外伸入至出料溜管中或从出料溜管退出至取样口外,称重传感器对退出至取样口外的取样斗进行称重；膨化度调节装置的多个收敛片沿固定环的周向均匀间隔地设置在固定环的一面上,多个收敛片的内端围合成直径小于固定环内径的环形,在每个收敛片的外端对应设置有一个与固定环可转动连接的凸轮,步进电机通过传动件带动所有凸轮同步转动；控制装置收称重传感器的重量信号,并根据重量信号控制步进电机转动。本发明可在线监测膨化度,并根据生产需要实时调整膨化机所生产膨化料的膨化度。(The invention discloses an automatic adjusting system for the puffing degree of a puffing material, which comprises an online puffing degree detecting device, a puffing degree adjusting device and a control device, wherein a sampling cylinder of the online puffing degree detecting device is connected with a sampling hopper so as to drive the sampling hopper to extend into a discharging chute from the outside of a sampling opening or withdraw from the discharging chute to the outside of the sampling opening; a plurality of convergence sheets of the bulking degree adjusting device are uniformly arranged on one surface of the fixing ring at intervals along the circumferential direction of the fixing ring, the inner ends of the convergence sheets are encircled into a ring shape with the diameter smaller than the inner diameter of the fixing ring, the outer end of each convergence sheet is correspondingly provided with a cam which is rotatably connected with the fixing ring, and the stepping motor drives all the cams to synchronously rotate through a transmission part; the control device receives a weight signal of the weighing sensor and controls the stepping motor to rotate according to the weight signal. The invention can monitor the expansion degree on line and adjust the expansion degree of the expanded material produced by the expansion machine in real time according to the production requirement.)

1. The utility model provides a popped material bulking degree automatic regulating system which characterized in that includes:

the puffing degree online detection device (1) comprises a discharge chute (11), a sampling hopper (12), a sampling cylinder (13), a scraper (14) and a weighing sensor (15), wherein a sampling port (16) is formed in the side wall of the discharge chute (11), the sampling cylinder (13) is connected with the sampling hopper (12) to drive the sampling hopper (12) to stretch into the discharge chute (11) from the outside of the sampling port (16) or withdraw from the discharge chute (11) to the outside of the sampling port (16), the scraper (14) is arranged above the sampling port (16), the lower end face of the scraper (14) is attached to the upper end face of the sampling hopper (12), and the weighing sensor (15) is arranged outside the sampling port (16) to weigh the sampling hopper (12) withdrawn from the outside of the sampling port (16);

the bulking degree adjusting device (2) comprises a fixing ring (21), a transmission piece (22), a plurality of convergence pieces (23), a plurality of cams (24) and a stepping motor (25), wherein the convergence pieces (23) are uniformly arranged on one surface of the fixing ring (21) at intervals along the circumferential direction of the fixing ring (21), each convergence piece (23) is arranged along the radial direction of the fixing ring (21) in a sliding manner, the inner ends of the convergence pieces (23) enclose a ring shape with a diameter smaller than the inner diameter of the fixing ring (21), the outer end of each convergence piece (23) is correspondingly provided with one cam (24) which is rotatably connected with the fixing ring (21), the contour curved surface of each cam (24) is abutted against the outer end surface of the corresponding convergence piece (23), and the stepping motor (25) drives all the cams (24) to synchronously rotate through the transmission piece (22);

and the control device (3) is connected with the weighing sensor (15) and the stepping motor (25), and the control device (3) receives a weight signal of the weighing sensor (15) and outputs a control signal to control the stepping motor (25) to rotate according to the weight signal.

2. The automatic adjusting system for the puffing degree of the puffed materials according to claim 1, which is characterized in that: the transmission piece (22) is a rotatable gear ring, the gear ring and the fixing ring (21) are coaxially arranged, an inner tooth surface (26) is arranged on the inner periphery of the gear ring, and a cam gear (27) meshed with the inner tooth surface (26) is arranged on each cam (24).

3. The automatic adjusting system for the puffing degree of the puffed materials according to claim 2, which is characterized in that: an outer tooth surface (28) is arranged on the periphery of the gear ring, and a motor gear (29) meshed with the outer tooth surface (28) is arranged on a motor shaft of the stepping motor (25).

4. The automatic adjusting system for the puffing degree of the puffed materials according to claim 1, which is characterized in that: the outer end face of the convergence sheet (23) is an arc-shaped face.

5. The automatic adjusting system for the puffing degree of the puffed materials according to claim 1, which is characterized in that: the number of the convergence pieces (23) and the cams (24) is 10-20.

6. The automatic adjusting system for the puffing degree of the puffed materials according to claim 5, which is characterized in that: the number of the convergence pieces (23) and the number of the cams (24) are 15.

7. The automatic adjusting system for the puffing degree of the puffed materials according to any one of claims 1 to 6, wherein: the sampling cylinder (13) drives the sampling hopper (12) to stretch into the discharging chute (11) from the outside of the sampling opening (16) along the horizontal direction or to withdraw from the discharging chute (11) to the outside of the sampling opening (16).

8. The automatic adjusting system for the puffing degree of the puffed materials according to claim 7, which is characterized in that: the front end face of the sampling hopper (12) is matched with the shape of the sampling opening (16), and when the sampling hopper (12) is withdrawn from the discharging chute (11) to the outside of the sampling opening (16), the front end face of the sampling hopper (12) seals the sampling opening (16).

9. The automatic adjusting system for the puffing degree of the puffed materials according to any one of claims 1 to 6, wherein: the volume of the sampling hopper (12) is 1 liter.

Technical Field

The invention belongs to the technical field of feed or food processing, and particularly relates to an automatic adjusting system for puffing degree of a puffing material for a puffing machine.

Background

Currently, in the feed or food processing industry, a puffing machine is generally adopted to prepare raw materials into fluffy particles. As shown in fig. 1, a twin-screw extrusion-expansion machine commonly used in the related art includes an extrusion container 1 ', a pair of extrusion screws 2' is disposed in the extrusion container 1 ', an outlet end of the extrusion container 1' is provided with a pressure ring 3 ', the extrusion screws 2' rotate to convey, extrude, shear and mix materials in the extrusion container 1 ', and the materials are cured under the action of high temperature and high pressure and then extruded out of the extrusion container through the pressure ring 3'. The expansion degree of the manufactured expanded material can be changed by changing the pore size of the inner hole of the pressure ring. However, the aperture of the pressure ring of the existing bulking machine is not adjustable, the bulking degree needs to be changed, and the pressure ring can only be manually replaced after the machine is stopped, so that time and labor are wasted, and a large amount of bulking degree can not reach the required bulking material. In addition, the bulking machine needs to detect the bulking degree of the bulked material produced by the bulking machine in the production process so as to determine whether to replace the pressure ring of the bulking machine according to the bulking degree. However, the conventional method for detecting the puffing degree is manual sampling detection, that is, manually sampling from the produced puffing material, and then detecting the puffing degree of the puffing material by adopting methods such as observation or weighing, the detection speed is low, the efficiency is low, and online real-time detection cannot be realized, so that the pressure ring of the puffing machine cannot be adjusted in time according to the puffing degree of the puffing material, the efficiency for adjusting the puffing degree is low, and more waste materials are generated.

The above discussion is intended to introduce the reader to various aspects of art that may be related to various aspects of the present invention, which are described and/or claimed below, and is believed to be helpful in providing the reader with background information to facilitate a better understanding of the various aspects of the present invention, and is therefore to be understood in this light, and not as an admission of prior art.

Disclosure of Invention

In order to solve at least one of the above technical problems, the present invention provides an automatic adjusting system for puffing degree of a puffing material.

The purpose of the invention is realized by the following technical scheme:

the utility model provides a popped material bulking degree automatic regulating system, includes:

the device for on-line detection of the puffing degree comprises a discharge chute, a sampling hopper, a sampling cylinder, a scraper blade and a weighing sensor, wherein a sampling opening is formed in the side wall of the discharge chute;

the bulking degree adjusting device comprises a fixing ring, a transmission part, a plurality of convergence pieces, a plurality of cams and a stepping motor, wherein the convergence pieces are uniformly arranged on one surface of the fixing ring at intervals along the circumferential direction of the fixing ring, each convergence piece is arranged along the radial direction of the fixing ring in a sliding manner, the inner ends of the convergence pieces enclose a ring shape with a diameter smaller than the inner diameter of the fixing ring, the outer end of each convergence piece is correspondingly provided with a cam which is rotatably connected with the fixing ring, the contour curved surface of the cam is abutted against the outer end surface of the corresponding convergence piece, and the stepping motor drives all the cams to synchronously rotate through the transmission part;

and the control device is connected with the weighing sensor and the stepping motor, receives the weight signal of the weighing sensor and outputs a control signal to control the stepping motor to rotate according to the weight signal.

As a further improvement, the transmission part is a rotatable gear ring, the gear ring and the fixing ring are coaxially arranged, the inner circumference of the gear ring is provided with an inner tooth surface, and each cam is provided with a cam gear meshed with the inner tooth surface.

As a further improvement, the periphery of the gear ring is provided with an outer tooth surface, and a motor shaft of the stepping motor is provided with a motor gear meshed with the outer tooth surface.

As a further improvement, the outer end face of the convergence sheet is an arc-shaped face.

As a further improvement, the number of the convergent pieces and the cams is 10-20.

As a further improvement, the number of the convergent pieces and the cams is 15.

As a further improvement, the sampling cylinder drives the sampling hopper to extend into the discharging chute from the sampling opening or withdraw from the discharging chute to the outside of the sampling opening along the horizontal direction.

As a further improvement, the front end face of the sampling hopper is matched with the shape of the sampling opening, and when the sampling hopper is withdrawn from the discharge chute to the outside of the sampling opening, the front end face of the sampling hopper seals the sampling opening.

As a further improvement, the volume of the sampling hopper is 1 liter.

The invention provides an automatic adjusting system for the puffing degree of a puffed material, which comprises: the device for on-line detection of the puffing degree comprises a discharge chute, a sampling hopper, a sampling cylinder, a scraper blade and a weighing sensor, wherein a sampling opening is formed in the side wall of the discharge chute;

the bulking degree adjusting device comprises a fixing ring, a transmission part, a plurality of convergence pieces, a plurality of cams and a stepping motor, wherein the convergence pieces are uniformly arranged on one surface of the fixing ring at intervals along the circumferential direction of the fixing ring, each convergence piece is arranged along the radial direction of the fixing ring in a sliding manner, the inner ends of the convergence pieces enclose a ring shape with a diameter smaller than the inner diameter of the fixing ring, the outer end of each convergence piece is correspondingly provided with a cam which is rotatably connected with the fixing ring, the contour curved surface of the cam is abutted against the outer end surface of the corresponding convergence piece, and the stepping motor drives all the cams to synchronously rotate through the transmission part;

and the control device is connected with the weighing sensor and the stepping motor, receives the weight signal of the weighing sensor and outputs a control signal to control the stepping motor to rotate according to the weight signal.

When the device is used, the upper end of a discharge chute of the on-line swelling degree detection device is connected with a discharge hole of a swelling machine, and the swelling degree adjusting device is used as a pressure ring of the swelling machine and is fixedly arranged at the discharge end of the screw extrusion swelling machine. During bulking machine production, bulking degree on-line measuring device stretches into to ejection of compact elephant trunk from the sample mouth through sampling cylinder drive sampling fill outward, and the sampling fill meets and is full of the swelling material back, withdraws from to the sample mouth outside from the ejection of compact elephant trunk through sampling cylinder drive sampling fill, at the in-process that the sampling fill withdrawed from, the scraper blade of sampling fill top is piled up in with the sampling fill and is surpassed the swelling material of fighting the up end of sampling and scrape the tie to it is fixed volume to guarantee the interior swelling material of sampling fill. After the sampling hopper withdraws from, weighing sensor weighs the sampling hopper, measures and reachs popped material weight in the sampling hopper because known volume to can calculate the popped degree of material that swells through controlling means, realize the online real-time supervision of popped degree, control popped degree in real time, and detect fast, efficient. Because every convergence piece of bulking degree adjusting device can follow solid fixed ring's radial slip, step motor accessible the driving medium drives all cams synchronous rotations, and the outer terminal surface of convergence piece is extruded or relaxed to the profile curved surface of adjusting a plurality of convergence pieces's the inner aperture of enclosing the synthetic hole, through the aperture that changes the hole, and then the bulking degree of the bulking material that the change bulking machine produced. Like this, the bulking machine need not shut down manual change pressure ring, and the regulation labour saving and time saving of bulking degree is popped the degree and is adjusted efficiently. The control device of the invention obtains the expansion degree of the expanded material produced by the expansion machine, and then outputs a control signal to control the stepping motor to rotate according to the expansion degree, and adjusts the aperture of the inner hole formed by the inner ends of the plurality of convergence sheets in real time, thereby adjusting the aperture value required by the target expansion degree. The invention can realize the on-line real-time monitoring of the expansion degree, and adjust the expansion degree of the expanded material produced by the expansion machine in real time according to the production requirement, thereby saving time and labor and having little waste material.

Drawings

The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.

Figure 1 is a schematic diagram of the discharge end of a twin screw extruder.

Fig. 2 is a schematic structural diagram of an automatic adjusting system for the bulking degree of the bulking material.

Fig. 3 is a schematic diagram of the puffing degree on-line detection device of the puffing material puffing degree automatic adjusting system during sampling.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and specific embodiments, and it is to be noted that the embodiments and features of the embodiments of the present application can be combined with each other without conflict.

Referring to fig. 2 and 3, an automatic adjusting system for the puffing degree of a puffed material according to an embodiment of the present invention includes an online puffing degree detecting device 1, a puffing degree adjusting device 2, and a control device 3. Wherein:

the puffing degree online detection device 1 comprises a discharge chute 11, a sampling hopper 12, a sampling cylinder 13, a scraper 14 and a weighing sensor 15, wherein the upper end of the discharge chute is connected with a discharge hole of a puffing machine, a sampling opening 16 is formed in the side wall of the discharge chute 11, the sampling cylinder 13 is connected with the sampling hopper 12 so as to drive the sampling hopper 12 to stretch into the discharge chute 11 from the outside of the sampling opening 16 or withdraw from the discharge chute 11 to the outside of the sampling opening 16, the scraper 14 is arranged above the sampling opening 16, the lower end face of the scraper 14 is attached to the upper end face of the sampling hopper 12, and the weighing sensor 15 is arranged outside the sampling opening 16 so as to weigh the sampling hopper 12 withdrawn to the outside of the sampling opening 16; during bulking machine production, bulking degree on-line measuring device stretches into to ejection of compact elephant trunk 11 from sample connection 16 outward through sampling cylinder 13 drive sampling hopper 12, sampling hopper 12 connects and swells the material after, withdraw from to outside sampling connection 16 in ejection of compact elephant trunk 11 through sampling cylinder 13 drive sampling hopper 12, at the in-process that sampling hopper 12 withdraws from, scraper blade 14 of sampling hopper 12 top is piled up in with sampling hopper 12 and is strickleed off in the bulking material of higher than the sampling hopper up end, thereby guarantee that the interior swelling material of sampling hopper 12 is fixed volume. After sampling hopper 12 withdraws, weighing sensor 15 weighs sampling hopper 12, measures and reachs popped material weight in the sampling hopper to known volume can calculate the popped degree of popped material, realize the online real-time supervision of popped degree.

The swelling degree adjusting device 2 includes a fixing ring 21, a transmission member 22, a plurality of convergence pieces 23, a plurality of cams 24, and a stepping motor 25. Fixed ring 21 is the ring shape, during the use fixed ring 21 fixed mounting is at the discharge end of screw extrusion bulking machine, a plurality of convergence pieces 23 set up in the one side of fixed ring 21 along the even interval ground of the circumference of fixed ring 21, and every convergence piece 23 sets up along fixed ring 21 radially slidable, and convergence piece 23 accessible carries out the sliding guide at the radial convergence piece spout that sets up in the one side of fixed ring 21. The inner ends of the plurality of convergence pieces 23 are encircled to form a ring shape with the diameter smaller than the inner diameter of the fixing ring 21, the outer end of each convergence piece 23 is correspondingly provided with a cam 24 which is rotatably connected with the fixing ring 21, the contour curved surface of each cam 24 is abutted with the outer end surface of the corresponding convergence piece 23, and the stepping motor 25 drives all the cams 24 to synchronously rotate through the transmission piece 22; because every convergent flap 23 of the bulking degree adjusting device can slide along the radial direction of the fixed ring 21, the stepping motor 25 can drive all the cams 24 to rotate synchronously through the transmission piece 22, the outline curved surface of the cam 24 extrudes or loosens the outer end surface of the convergent flap 23, so that the aperture D of the inner hole enclosed by the inner ends of the convergent flaps 23 is adjusted, and the bulking degree of the bulked materials produced by the bulking machine is changed by changing the aperture of the inner hole. Like this, the bulking machine need not shut down manual change pressure ring, and the regulation labour saving and time saving of bulking degree is popped the degree and is adjusted efficiently.

The control device 3 adopts a programmable controller (P L C), the control device 3 is connected with the weighing sensor 15 and the stepping motor 25, the control device 3 receives a weight signal of the weighing sensor 15, because the volume of the expanded material in the sampling hopper 12 is known, the control device 3 can calculate the expansion degree of the expanded material, online real-time monitoring of the expansion degree is realized, the stepping motor 25 is controlled to rotate according to the weight signal output control signal, the aperture D of the inner hole surrounded by the inner ends of the plurality of convergence sheets is adjusted in real time, and the aperture value required by the target expansion degree is adjusted.

In a further preferred embodiment, the transmission member 22 is a rotatable gear ring, the gear ring is coaxially arranged with the fixed ring 21 and can rotate relative to the fixed ring 21, the gear ring is rotatably arranged at the discharge end of the screw extrusion puffing machine when in use, the inner periphery of the gear ring is provided with an annular inner toothed surface 26, each cam 24 is arranged along the inner periphery of the gear ring, and each cam 24 is provided with a cam gear 27 meshed with the inner toothed surface 26. The transmission member 22 is a gear ring, so that the transmission structure is stable, the rotation synchronism of the cam 24 is good, and the rotation direction and the rotation angle of the cam 24 can be accurately controlled conveniently, so that the aperture D of an inner hole formed by enclosing the inner ends of the plurality of convergence sheets can be accurately adjusted. After the gear ring rotates, the cam is driven to rotate through the gear on the cam, so that the movement of the convergence sheet is adjusted, and the aperture D of an inner hole formed by a part of the inner end of the convergence sheet, which is left empty, is changed.

In a further preferred embodiment, the outer periphery of the ring gear is provided with an annular external tooth surface 28, and a motor shaft of the stepping motor 25 is provided with a motor gear 29 that meshes with the external tooth surface 28. Thus, the transmission structure between the stepping motor 25 and the gear ring is stable, and the direction and the angle of rotation of the gear ring can be accurately controlled conveniently.

In a further preferred embodiment, the outer end surface of the convergent plate 23 is an arc-shaped surface, and the arc-shaped surface matches with the contour curved surface of the cam 24. Thus, the transmission of the transmission force is more stable when the contour curved surface of the cam 24 presses or loosens the outer end surface of the convergent plate 23.

In a further preferred embodiment, the number of the convergent pieces 23 and the cams 24 is 10 to 20, and the number of the convergent pieces 23 and the cams 24 is 15. The number of the convergent blades 23 and the cams 24 can be set according to actual needs, generally speaking, the larger the number is, the smoother the edge of the inner hole is, but the more complicated the structure is, and the better the structural simplicity and the smoothness of the inner hole edge can be considered by selecting 10-20.

In a further preferred embodiment, the sampling cylinder 13 drives the sampling hopper 12 to extend horizontally from the sampling opening 16 into the discharge chute 11 or to withdraw from the discharge chute 11 to the outside of the sampling opening 16, so that the sampling hopper 12 can be ensured to be fully filled with the expanded material and then withdrawn.

In a further preferred embodiment, the front end face of the sampling funnel 12 is adapted to the shape of the sampling opening 16, and when the sampling funnel 12 is withdrawn from the discharge chute 11 to the outside of the sampling opening 16, the front end face of the sampling funnel 12 closes the sampling opening 16, so that the puffed material in the discharge chute is prevented from flowing out of the sampling opening 16 after sampling is completed.

In a further preferred embodiment, the sampling hopper 12 has a volume of 1 liter, which facilitates the control device to calculate the degree of expansion of the expanded material with a small calculation amount.

When the automatic adjusting system for the puffing degree of the puffing material is used, the upper end of a discharging chute of the on-line puffing degree detecting device is connected with a discharging port of a puffing machine, and the puffing degree adjusting device is used as a pressure ring of the puffing machine and is fixedly arranged at the discharging end of the screw extrusion puffing machine. During bulking machine production, bulking degree on-line measuring device stretches into to ejection of compact elephant trunk from the sample mouth through sampling cylinder drive sampling fill outward, and the sampling fill meets and is full of the swelling material back, withdraws from to the sample mouth outside from the ejection of compact elephant trunk through sampling cylinder drive sampling fill, at the in-process that the sampling fill withdrawed from, the scraper blade of sampling fill top is piled up in with the sampling fill and is surpassed the swelling material of fighting the up end of sampling and scrape the tie to it is fixed volume to guarantee the interior swelling material of sampling fill. After the sampling hopper withdraws from, weighing sensor weighs the sampling hopper, measures and reachs popped material weight in the sampling hopper because known volume to can calculate the popped degree of material that swells through controlling means, realize the online real-time supervision of popped degree, control popped degree in real time, and detect fast, efficient. Because every convergence piece of bulking degree adjusting device can follow solid fixed ring's radial slip, step motor accessible the driving medium drives all cams synchronous rotations, and the outer terminal surface of convergence piece is extruded or relaxed to the profile curved surface of adjusting a plurality of convergence pieces's the inner aperture of enclosing the synthetic hole, through the aperture that changes the hole, and then the bulking degree of the bulking material that the change bulking machine produced. Like this, the bulking machine need not shut down manual change pressure ring, and the regulation labour saving and time saving of bulking degree is popped the degree and is adjusted efficiently. The control device of the invention obtains the expansion degree of the expanded material produced by the expansion machine, and then outputs a control signal to control the stepping motor to rotate according to the expansion degree, and adjusts the aperture of the inner hole formed by the inner ends of the plurality of convergence sheets in real time, thereby adjusting the aperture value required by the target expansion degree. The invention can realize the on-line real-time monitoring of the expansion degree, and adjust the expansion machine in real time according to the expansion degree of the expanded material, thereby saving time and labor and having little waste material.

In the description above, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore should not be construed as limiting the scope of the present invention.

In conclusion, although the present invention has been described with reference to the preferred embodiments, it should be noted that, although various changes and modifications may be made by those skilled in the art, they should be included in the scope of the present invention unless they depart from the scope of the present invention.