CN107521021B - Device for extrusion molding of collagen - Google Patents
Device for extrusion molding of collagen Download PDFInfo
- Publication number
- CN107521021B CN107521021B CN201710822643.8A CN201710822643A CN107521021B CN 107521021 B CN107521021 B CN 107521021B CN 201710822643 A CN201710822643 A CN 201710822643A CN 107521021 B CN107521021 B CN 107521021B
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- extrusion
- cylinder body
- extrusion cylinder
- push rod
- periphery
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
- B29C2043/5808—Measuring, controlling or regulating pressure or compressing force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
- B29C2043/5833—Measuring, controlling or regulating movement of moulds or mould parts, e.g. opening or closing, actuating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
Abstract
The invention relates to a device for extrusion molding of collagen, which comprises a frame, a motor, a vertically arranged push rod, an extrusion cylinder body assembly and an extrusion cylinder cover, wherein the motor is arranged at the bottom of the frame, and the extrusion cylinder cover is horizontally arranged and the upper side surface of the extrusion cylinder cover is connected with the inner side surface of the top of the frame; the lower end of the push rod is connected with the output end of the motor, the upper end of the push rod is connected with the bottom of the extrusion cylinder body assembly, an extrusion cavity with an open upper end is formed in the extrusion cylinder body assembly, and the extrusion cylinder cover and the open end of the extrusion cavity are arranged up and down oppositely; and the extrusion cylinder body assembly and/or the extrusion cylinder cover are/is provided with a plurality of drain holes communicated with the extrusion cavity. According to the device, the push rod is driven by the motor to move upwards, so that the extrusion cylinder body assembly is pushed to move upwards, the extrusion cylinder cover extends into the extrusion cavity to extrude the collagen solution in the extrusion cavity, manual operation is omitted, and the yield is high; by arranging the drain hole, water generated by squeezing the collagen solution is conveniently discharged.
Description
Technical Field
The invention relates to the technical field of collagen molds, in particular to a device for extrusion molding of collagen.
Background
Currently, there is a need for a collagen foil with a certain thickness of pressed water for use in the production of dura mater. There are no existing devices on the market that can be used to make such collagen sheets, but the manual pressing method is labor-intensive and does not have a uniform thickness.
Disclosure of Invention
The invention aims to solve the technical problem of providing a device for extrusion molding of collagen aiming at the defects in the prior art.
The technical scheme for solving the technical problems is as follows: the device for extrusion molding of collagen comprises a frame, a motor, a vertically arranged push rod, an extrusion cylinder body assembly and an extrusion cylinder cover, wherein the motor is arranged at the bottom of the frame, and the extrusion cylinder cover is horizontally arranged and the upper side surface of the extrusion cylinder cover is connected with the inner side surface of the top of the frame; the lower end of the push rod is connected with the output end of the motor, the upper end of the push rod is connected with the bottom of the extrusion cylinder body assembly, an extrusion cavity with an open upper end is formed in the extrusion cylinder body assembly, and the extrusion cylinder cover and the open end of the extrusion cavity are arranged in an up-down opposite mode; and the extrusion cylinder body assembly and/or the extrusion cylinder cover are/is provided with a plurality of drain holes communicated with the extrusion cavity.
The beneficial effects of the invention are as follows: according to the device, the push rod is driven by the motor to move upwards, so that the extrusion cylinder body assembly is pushed to move upwards, the extrusion cylinder cover extends into the extrusion cavity to extrude the collagen solution in the extrusion cavity, manual operation is omitted, and the yield is high; by arranging the drain hole, water generated by squeezing the collagen solution is conveniently discharged.
On the basis of the technical scheme, the invention can be improved as follows.
Further, the extrusion cylinder body assembly comprises an extrusion cylinder and a tray, the upper end of the extrusion cylinder and the upper end of the tray are both open, the tray is horizontally arranged and vertically fixed at the upper end of the push rod, the extrusion cylinder is installed on the inner side surface of the bottom wall of the tray and is horizontally arranged, a plurality of drain holes are formed in the extrusion cylinder and/or the extrusion cylinder cover, and the extrusion cavity is formed in the extrusion cylinder.
The beneficial effects of adopting the further scheme are as follows: by arranging the extrusion cylinder and the tray, water generated by extrusion of the collagen solution in the extrusion cavity is discharged into the tray, so that collection is facilitated.
Further, the extrusion cylinder comprises a cylinder body and a periphery, wherein the cylinder body is arranged on the inner side surface of the bottom wall of the tray and is horizontally arranged, the periphery is of a tubular structure which penetrates up and down and is matched with the upper surface of the cylinder body, and the extrusion cavity is defined between the periphery and the cylinder body when the periphery is placed on the cylinder body; and a plurality of drain holes are formed in the periphery and/or the cylinder body.
The beneficial effects of adopting the further scheme are as follows: through setting up jar body and periphery, after the extrusion is accomplished, can take out the periphery, make the collagen solution by the mould formation that the extrusion formed on the jar body, make things convenient for taking out of mould.
Further, the cylinder body is detachably connected to the inner side surface of the tray bottom wall through a plurality of support assemblies, and a gap is reserved between the cylinder body and the tray bottom wall.
The beneficial effects of adopting the further scheme are as follows: through fixing the jar body on the tray diapire through the support column, can be with the water that collagen solution extrusion produced through jar body discharge in the clearance, extrusion effect is better.
Further, an annular step is arranged on the upper surface of the cylinder body close to the edge, and the periphery is matched with the annular step.
The beneficial effects of adopting the further scheme are as follows: by arranging the annular step, when the periphery is placed on the cylinder body, the periphery can be placed to shake.
Further, the peripheral side outer wall of the periphery is connected to the inner side wall of the frame through a plurality of hooks, when the extrusion cylinder pushes the periphery upwards to move, a plurality of hooks are separated from the inner side wall of the frame, and the lower end of the periphery is pressed and connected to the upper surface of the cylinder body.
The beneficial effects of adopting the further scheme are as follows: through with the periphery through a plurality of hooks on the inside wall of frame, fall into annular step when the periphery is jacked by the jar body, hang on the frame after being released by the jar body, make things convenient for taking of the mould that collagen solution extrusion formed.
Further, a plurality of clamping piles are arranged on the inner side wall of the frame, a plurality of hooks are arranged in one-to-one correspondence with a plurality of clamping piles, and a clamping groove is formed in the upper side face of each clamping pile; one end of the hook is fixedly connected with the peripheral side outer wall, and the other end of the hook is hooked in the clamping groove.
The beneficial effects of adopting the further scheme are as follows: through setting up joint stake and joint groove for the string of couple is more stable.
Further, still include the steel mesh fixed plate, the circumference outer fringe of steel mesh fixed plate with the periphery lateral wall looks adaptation of extrusion chamber.
The beneficial effects of adopting the further scheme are as follows: by arranging the steel mesh fixing plate, the collagen mould formed by extrusion is attractive in texture and convenient to demould.
Further, a plurality of linear bearings are arranged on the circumferential outer edge of the extrusion cylinder body assembly, a guide optical axis which is vertically arranged is arranged in the linear bearings in a penetrating mode, and the upper end and the lower end of the guide optical axis are fixedly connected with the frame.
The beneficial effects of adopting the further scheme are as follows: through setting up linear bearing and direction optical axis, prevent that motor push rod's reciprocates and take place the skew.
Further, the device also comprises a control device, a displacement sensor and a pressure sensor, wherein the displacement sensor and the pressure sensor are connected with the control device through circuits; the pressure sensor is arranged between the upper end of the push rod and the extrusion cylinder body assembly and is used for detecting the pressure between the push rod and the extrusion cylinder body assembly, the electronic head of the displacement sensor is arranged on the frame, and the moving shaft of the displacement sensor is vertically arranged and the end part of the moving shaft of the displacement sensor is fixed at the bottom of the extrusion cylinder body assembly.
The beneficial effects of adopting the further scheme are as follows: by arranging the control device, the displacement sensor and the pressure sensor, the pressure between the push rod and the extrusion cylinder assembly and the moving distance of the extrusion cylinder assembly can be monitored.
Drawings
FIG. 1 is a schematic perspective view of the device of the present invention;
FIG. 2 is a schematic perspective view of the device of the present invention without the extrusion cylinder;
FIG. 3 is an enlarged schematic view of the portion A in FIG. 2;
FIG. 4 is an enlarged schematic view of the portion B in FIG. 2;
fig. 5 is a schematic view of the connection structure of the push rod and the tray of the device of the present invention.
In the drawings, the list of components represented by the various numbers is as follows:
100. a frame;
200. a motor; 201. a push rod;
300. an extrusion cylinder assembly; 301. a tray; 302. a cylinder body; 303. a periphery; 304. a fixing plate; 305. clamping piles; 306. a hook; 307. a linear bearing; 308. guiding an optical axis; 309. extruding a cylinder cover; 310. a steel mesh fixing plate; 311. a support column; 312. an annular step; 313. a tray support; 314. a connecting block; 315. a clamping block;
400. a housing;
500. a displacement sensor.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
As shown in fig. 1 to 5, an apparatus for extruding collagen according to the present embodiment includes a frame 100, a motor 200, a vertically arranged push rod 201, an extruding cylinder assembly 300, and an extruding cylinder cover 309, wherein the motor 200 is installed at the bottom of the frame 100, and the extruding cylinder cover 309 is horizontally arranged and has an upper side surface connected with an inner side surface of the top of the frame 100; the lower end of the push rod 201 is connected with the output end of the motor 200, the upper end of the push rod 201 is connected with the bottom of the extrusion cylinder assembly 300, an extrusion cavity with an open upper end is formed in the extrusion cylinder assembly 300, and the extrusion cylinder cover 309 and the open end of the extrusion cavity are arranged in a vertically opposite manner; the squeeze cylinder assembly 300 and/or the squeeze cylinder head 309 are each provided with a plurality of drain holes in communication with the squeeze cavity. Wherein, extrusion cylinder cap 309 is adapted to the extrusion chamber, extrusion cylinder cap 309 is fixed on the top inner side of frame 100 by a plurality of connecting bolts, when push rod 201 pushes extrusion cylinder assembly 300 to move upwards, extrusion cylinder cap 309 extends into the extrusion chamber and extrudes the collagen solution in the extrusion chamber. According to the device, the push rod is driven by the motor to move upwards, so that the extrusion cylinder body assembly is pushed to move upwards, the extrusion cylinder cover stretches into the extrusion cavity to extrude the collagen solution in the extrusion cavity, manual operation is omitted, and the yield is high; by arranging the drain hole, water generated by squeezing the collagen solution is conveniently discharged.
As shown in fig. 1 to 5, the extrusion cylinder assembly 300 of the present embodiment includes an extrusion cylinder and a tray 301, wherein the upper end of the extrusion cylinder and the upper end of the tray 301 are both open, the tray 301 is horizontally arranged and vertically fixed at the upper end of the push rod 201, the extrusion cylinder is mounted on the inner side surface of the bottom wall of the tray 301 and horizontally arranged, and the extrusion cavity is formed in the extrusion cylinder. The cylinder and/or the cylinder head 309 may be provided with a plurality of drain holes (not all of which are shown because of the high density of drain holes). By arranging the extrusion cylinder and the tray, water generated by extrusion of the collagen solution in the extrusion cavity is discharged into the tray, so that collection is facilitated.
As shown in fig. 5, the tray 301 has a cubic structure and an open upper end, and a tray support 313 is disposed at the bottom of the tray 301, that is, the tray 301 is fixed to the upper end of the push rod 201 by the tray support 313 at the bottom. The bottom of the tray 301 is provided with a drain pipe communicating with the inside thereof, through which water pressed and flowing into the inside of the tray 301 can be discharged.
As shown in fig. 1 and 2, the extrusion cylinder of the present embodiment includes a cylinder body 302 and a periphery 303, wherein the cylinder body 302 is mounted on an inner side surface of a bottom wall of the tray 301 and is horizontally disposed, the periphery 303 is in a tubular structure penetrating up and down and is adapted to an upper surface of the cylinder body 302, and the periphery 303 and the cylinder body 302 define the extrusion cavity when placed on the cylinder body 302; a plurality of drain holes are formed in the periphery 303 and/or the cylinder body 302. Through setting up jar body and periphery, after the extrusion is accomplished, can take out the periphery, make the collagen solution by the mould formation that the extrusion formed on the jar body, make things convenient for taking out of mould.
As shown in fig. 1, 2 and 5, the cylinder body 302 has a square plate structure, the cylinder body 302 is detachably fixed on the bottom wall of the tray 301, and the periphery 303 is also a square structure adapted to the cylinder body 302. An annular step 312 is arranged on the upper surface of the cylinder body 302 near the edge, and the periphery 303 is matched with the annular step 312. By arranging the annular step, when the periphery is placed on the cylinder body, the periphery can be placed to shake.
As shown in fig. 2 and 4, the cylinder body 302 of the present embodiment is detachably connected to the inner side surface of the bottom wall of the tray 301 by a plurality of support members, and a gap is reserved between the cylinder body 302 and the bottom wall of the tray 301. Through fixing the jar body on the tray diapire through the support column, can be with the water that collagen solution extrusion produced through jar body discharge in the clearance, extrusion effect is better.
Specifically, as shown in fig. 4, the supporting assembly includes a plurality of supporting columns 311, a plurality of connecting blocks 314 and a plurality of clamping blocks 315, the plurality of connecting blocks 314 and the plurality of supporting columns 311 are all disposed on the inner side surface of the bottom wall of the tray 301, each connecting block 314 is rotatably connected with a clamping block 315, and the plurality of supporting columns 311 are located in an area surrounded by the plurality of connecting blocks 314. When the extrusion cylinder 302 is placed on the plurality of support columns 311, the clamping blocks 315 can be rotated, so that the clamping blocks 315 clamp and position the cylinder body 302 on the plurality of support columns 311. That is, the squeeze cylinders 302 are actually placed on the support columns 311, and the squeeze cylinders 302 can be clamped to the support columns 311 at positions near the four corners by the cooperation of the connecting blocks 314 and the clamping blocks 315.
As shown in fig. 1-3, the peripheral outer wall of the outer periphery 303 of the present embodiment is hung on the inner side wall of the frame 100 by a plurality of hooks 306, when the cylinder body 302 pushes the outer periphery 303 upward to move, the plurality of hooks 306 are separated from the inner side wall of the frame 100, and the lower end of the outer periphery 303 is pressed against the upper surface of the cylinder body 302. Through with the periphery through a plurality of hooks on the inside wall of frame, fall into annular step when the periphery is jacked by the jar body, hang on the frame after being released by the jar body, make things convenient for taking of the mould that collagen solution extrusion formed.
As shown in fig. 1-3, a plurality of clamping piles 305 are arranged on the inner side wall of the frame 100, a plurality of hooks 306 are arranged in one-to-one correspondence with a plurality of clamping piles 305, and a clamping groove is formed in the upper side surface of the clamping pile 305; one end of the hook 306 is fixedly connected with the peripheral side outer wall of the periphery 303, and the other end of the hook 306 is hooked in the clamping groove. Through setting up joint stake and joint groove for the string of couple is more stable.
Specifically, the end of the hook 306 connected to the outer periphery 303 is a first end, the end of the hook 306 connected to the clamping pile 305 is a second end, and the first end is located below the second end, that is, the hook 306 can be obliquely or bending. The second end is provided with a hook body which is hooked with the clamping groove.
As shown in fig. 1 and 2, the extrusion cylinder assembly 300 of the present embodiment further includes a steel mesh fixing plate 310, and a circumferential outer edge of the steel mesh fixing plate 310 is adapted to a circumferential side wall of the extrusion chamber. Grid-shaped convex ribs are arranged on the upper side surface and the lower side surface of the steel mesh fixing plate 310; when the cylinder body 302 moves upwards to enable the periphery 303 to fall onto the cylinder body 302, a collagen solution is injected into the extrusion cavity, a steel mesh fixing plate 310 can be placed on the collagen solution, then the push rod 201 continues to move upwards, the extrusion cover plate 309 extrudes the steel mesh fixing plate 310, a plurality of drain holes are also formed in the steel mesh fixing plate 310, and when the extrusion cover plate 309 extrudes the steel mesh fixing plate 310, water generated by extrusion can seep out from the extrusion cover plate 309 and the drain holes in the steel mesh fixing plate 310; the steel mesh fixing plate 310 is provided with the grid-shaped ribs, so that the extruded collagen mold is attractive in texture and convenient to demold.
As shown in fig. 1, 2 and 5, a plurality of linear bearings 307 are mounted on the circumferential outer edge of the extrusion cylinder assembly 300 in the present embodiment, a guiding optical axis 308 arranged vertically is penetrated in the linear bearings 307, and the upper and lower ends of the guiding optical axis 308 are fixedly connected with the frame 100; through setting up linear bearing and direction optical axis, prevent that motor push rod's reciprocates and take place the skew. The number of the linear bearings and the number of the guide optical axes are four.
As shown in fig. 1 and 2, the frame 100 of the present embodiment has a cubic structure formed by connecting a plurality of aluminum alloy connecting rods, to which the squeeze cover 309 and the hooks 306 are actually connected. The four motors 200 are respectively arranged at four corners of the bottom of the frame 100, the extrusion cylinder body 302, the extrusion cylinder periphery 303, the extrusion cylinder cover 309, the tray 301 and the steel mesh fixing plate 310 are all of square structures, and two linear bearings 307 and two guide optical axes 308 are respectively arranged at the front side and the rear side of the tray 301; the hooks are also arranged in four, and two hooks are respectively arranged on the inner walls of the left side and the right side of the frame.
The working principle of the device of the embodiment is that the motor drives the push rod to move upwards, the push rod pushes the extrusion cylinder body to move upwards until the periphery falls into the cylinder body, the motor is suspended, then collagen solution is added into an extrusion cavity formed by the periphery and the cylinder body, a steel mesh fixing plate is placed in the extrusion cavity, the motor is restarted, the motor continues to drive the push rod to move upwards until the cylinder body on the push rod moves upwards by a preset value, at the moment, the motor stops running for a preset time, meanwhile, the extrusion cylinder cover falls into the periphery and extrudes the collagen solution in the extrusion cavity, after the extrusion lasts for the preset time, the motor is restarted and reversed, the push rod is driven to move the tray and the extrusion cylinder body downwards, the periphery is hung on the inner side wall of the frame again, the steel mesh fixing plate on the cylinder body is taken out, and then the collagen mould on the cylinder body is taken down. The displacement value of the push rod of the present embodiment refers to the total displacement of the push rod that moves upward after the motor is started, including upward displacement before the motor is suspended and upward displacement after the suspension.
As shown in fig. 1 and 2, the device of the present embodiment further includes a control device, a displacement sensor 500, and a pressure sensor, where the displacement sensor 500 and the pressure sensor are connected to the control device through circuits; the pressure sensor is installed between the upper end of the push rod 201 and the squeeze cylinder assembly 300 and is used for detecting the pressure between the push rod 201 and the squeeze cylinder assembly 300, the electronic head of the displacement sensor 500 is installed on the frame 100, and the movement axis of the displacement sensor 500 is vertically arranged and the end part thereof is fixed at the bottom of the squeeze cylinder assembly 300. The control device is installed at a position of the frame 100 near the front side. By arranging the control device, the displacement sensor and the pressure sensor, the pressure between the push rod and the extrusion cylinder assembly and the moving distance of the extrusion cylinder assembly can be monitored.
As shown in fig. 1, 2 and 5, the number of motors 200, the number of push rods 201 and the number of pressure sensors in the present embodiment are four, and a pressure sensor is respectively disposed between the output end of each motor 200 and the push rod 201.
The control device is internally provided with a singlechip, and the singlechip is used for controlling the displacement sensor to detect the displacement value of the upward movement of the push rod 201 and controlling the operation mode of the motor 200 according to the displacement value, so as to control the extrusion thickness of the die in the extrusion device 300. The thickness of the finally formed collagen mold is controlled by the displacement value, so that manual operation is omitted, the thickness control of the collagen mold is more accurate, and the yield is high. The displacement sensor is a high-precision displacement sensor with the stroke of 550mm, the principle of the displacement sensor is a resistance type displacement sensor, and the single chip microcomputer collects the voltage output by the displacement sensor and converts the voltage into a displacement value to detect the movement stroke of the extrusion device.
The singlechip is specifically configured to determine whether the displacement value reaches a preset value, and send a first motor control instruction to the motor 200 when the displacement value reaches the preset value; when the displacement value does not reach the preset value, a second motor control instruction is sent to the motor 200; the motor 200 controls the push rod 201 to stop moving upwards according to the first motor control command, and controls the push rod 201 to continue moving upwards according to the second motor control command. The displacement value of the push rod is compared with a preset value to judge, so that the movement of the push rod can be controlled through the displacement value, and further, the high-precision control of the extrusion thickness is achieved.
The control device of the embodiment further comprises a timer, so that the motor can stay at a preset position for a preset time, and the collagen extrusion effect is better.
Specifically, the singlechip is further configured to send a timing signal to the timer when the displacement value reaches a preset value; the timer is used for starting timing when receiving the timing signal, and feeding back a timing end signal to the singlechip when reaching preset time; the singlechip is further configured to send a third motor control instruction to the motor 200 when receiving the timing end signal; the motor 200 controls the push rod 201 to move downward according to the third motor control command. The preset time in this embodiment is 25s-35s. By limiting the preset time, the continuous extrusion is kept during the time period, and the extrusion effect of the collagen is better.
The singlechip is further configured to control the pressure sensor to detect a pressure value between the tray 301 and the push rod 201, determine whether an absolute value of a difference between any two pressure values exceeds a protection range, and send a protection instruction to the motor 200 when the absolute value exceeds the protection range; the motor 200 controls the push rods 201 to stop moving according to the protection instruction, and once one path of motor fails or the height difference of the upper ends of the push rods is large due to other reasons, the extrusion device can be prevented from being distorted and deformed through a protection mechanism of the singlechip. The pressure sensor adopts a high-precision pressure sensor and has the characteristics of small size, high precision, good sealing performance and good stability.
The control device of the embodiment also comprises a control button, a liquid crystal display screen, a memory and an alarm device; the LCD screen adopts LCD1602 LCD module, and can display the detected pressure values of all pressure sensors and the displacement values detected by the displacement sensors so as to facilitate the operator to observe the movement condition of the push rod.
The liquid crystal display screen and the memory are connected with the singlechip through a circuit, the liquid crystal display screen is used for displaying the displacement value and the pressure value, and the memory is used for storing the displacement value and the pressure value;
the control button is connected with the singlechip through a circuit and is used for receiving a trigger signal and sending the trigger signal to the singlechip; the single chip microcomputer is also used for sending a starting instruction, a pause instruction or a reset instruction to the motor according to the trigger signal, and the motor controls the push rod to move upwards, pause to move or move downwards to an initial position according to the starting instruction, the pause instruction or the reset instruction;
the alarm device is connected with the singlechip through a circuit, and the singlechip is also used for sending an alarm control signal to the alarm device when the absolute value exceeds the protection range, and the alarm device is used for receiving the alarm control signal and giving an alarm.
The control buttons are arranged, so that the device can be started by one key, and is simple to operate; the liquid crystal display screen can display the displacement value and the pressure value of the push rod at any time; the alarm device can play a role in warning the pressure value.
The singlechip of this embodiment adopts STM32F103RBT6, and the singlechip contains 4 motor control signals of group, and every motor control signal of group includes enable signal and positive and negative rotation signal, is used for controlling the rotational speed and the direction of every motor with the drive plate of motor control signal output to motor. The driving board of the motor 200 is also provided with keys, 6 detection circuits are arranged in the singlechip, the keys are connected with the singlechip through the key detection circuits, and the keys can set parameters.
A motor driving board is connected between each two motors 200 and the single chip microcomputer, and the motor driving board controls the motor 200 to rotate forward or reversely or controls the running speed of the motor through a control instruction sent by the single chip microcomputer. The motor of the embodiment adopts a push rod motor with 3000N and the speed of 10 mm/s.
The singlechip of the embodiment controls the pressure sensor and the displacement sensor to collect voltage signals and converts the collected voltage signals into pressure values and displacement values. Five paths of voltage acquisition circuits are designed in the singlechip, four paths of voltage acquisition circuits are used for acquiring pressure values of the pressure sensor, and one path of voltage acquisition circuits are used for acquiring displacement values of the displacement sensor. The singlechip of this embodiment is also used for respectively adjusting speed of each motor 200 during operation of the motors, so as to ensure that the push rods on the four motors 200 are all lifted at a constant speed.
The control process of the control device of the embodiment is that the motor is started through the control button, and the singlechip controls the motor to rotate positively, so that the push rod moves upwards to squeeze collagen in the extrusion cavity. The single chip microcomputer collects voltage signals detected by the displacement sensor and converts the voltage signals into displacement values, and the single chip microcomputer collects voltage signals detected by the pressure sensor and converts the voltage signals into pressure values; the single chip microcomputer judges whether the displacement value reaches a preset value, when the displacement value reaches the preset value, the motor is controlled to stop running (the periphery and the extrusion cylinder cover fall onto the cylinder body at the moment, the extrusion cylinder cover starts to extrude collagen solution in the extrusion cavity), the extrusion device is maintained at a preset position for 25s-35s, so that the water of the collagen in the extrusion device is extruded, then the motor is controlled to reversely rotate, the push rod is moved downwards, the extrusion cylinder cover and the periphery are separated from the cylinder body, and the extrusion of the collagen in the extrusion cavity is stopped; and when the displacement value does not reach the preset value, controlling the motor to continue to run upwards until the displacement value reaches the preset value. The singlechip is also used for judging whether the absolute value of the difference between any two pressure values exceeds a protection range, and sending a protection instruction to the motor when the absolute value exceeds the protection range, wherein the motor controls the push rod to stop moving according to the protection instruction.
The thickness of the final molded mold in this embodiment is between 1.5mm and 2mm, that is, when the displacement of the push rod reaches the preset value, the extrusion cavity in the extrusion device just maintains the thickness of the mold formed by extrusion of the collagen solution within the thickness range between 1.5mm and 2 mm.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (8)
1. The device for extrusion molding of the collagen is characterized by comprising a frame, a motor, a vertically arranged push rod, an extrusion cylinder body assembly and an extrusion cylinder cover, wherein the motor is arranged at the bottom of the frame, and the extrusion cylinder cover is horizontally arranged and the upper side surface of the extrusion cylinder cover is connected with the inner side surface of the top of the frame; the lower end of the push rod is connected with the output end of the motor, the upper end of the push rod is connected with the bottom of the extrusion cylinder body assembly, an extrusion cavity with an open upper end is formed in the extrusion cylinder body assembly, and the extrusion cylinder cover and the open end of the extrusion cavity are arranged in an up-down opposite mode; the extrusion cylinder body assembly and/or the extrusion cylinder cover are/is provided with a plurality of drain holes communicated with the extrusion cavity;
the extrusion cylinder body assembly comprises an extrusion cylinder and a tray, the upper end of the extrusion cylinder and the upper end of the tray are both open, the tray is horizontally arranged and vertically fixed at the upper end of the push rod, the extrusion cylinder is mounted on the inner side surface of the bottom wall of the tray and is horizontally arranged, a plurality of drain holes are formed in the extrusion cylinder and/or the extrusion cylinder cover, and the extrusion cavity is formed in the extrusion cylinder;
the device for extrusion molding of collagen further comprises a steel mesh fixing plate, wherein the circumferential outer edge of the steel mesh fixing plate is matched with the circumferential side wall of the extrusion cavity.
2. The device for extrusion of collagen according to claim 1, wherein the extrusion cylinder comprises a cylinder body and a periphery, the cylinder body is mounted on the inner side surface of the bottom wall of the tray and is horizontally arranged, the periphery is in a tubular structure penetrating up and down and is matched with the upper surface of the cylinder body, and the extrusion cavity is defined between the periphery and the cylinder body when the periphery is placed on the cylinder body; and a plurality of drain holes are formed in the periphery and/or the cylinder body.
3. The apparatus of claim 2, wherein the cylinder body is detachably connected to the inner side of the tray bottom wall by a plurality of support members, and a gap is reserved between the cylinder body and the tray bottom wall.
4. A device for extrusion of collagen according to claim 3, wherein the upper surface of the cylinder body is provided with an annular step near the edge, and the periphery is adapted to the annular step.
5. The apparatus according to any one of claims 2 to 4, wherein the peripheral outer wall of the outer periphery is hooked to the inner wall of the frame by a plurality of hooks, the plurality of hooks are disengaged from the inner wall of the frame when the outer periphery is pushed upward by the extruding cylinder, and the lower end of the outer periphery is press-connected to the upper surface of the cylinder body.
6. The device for extrusion molding of collagen according to claim 5, wherein a plurality of clamping piles are arranged on the inner side wall of the frame, a plurality of hooks are arranged in one-to-one correspondence with a plurality of clamping piles, and a clamping groove is formed in the upper side surface of each clamping pile; one end of the hook is fixedly connected with the peripheral side outer wall, and the other end of the hook is hooked in the clamping groove.
7. The device for extrusion molding of collagen according to claim 1, wherein a plurality of linear bearings are mounted on the circumferential outer edge of the extrusion cylinder assembly, guide optical axes which are vertically arranged are arranged in the linear bearings in a penetrating manner, and the upper end and the lower end of the guide optical axes are fixedly connected with the frame.
8. The apparatus for extrusion of collagen according to any one of claims 1 to 4, 6 to 7, further comprising a control device, a displacement sensor and a pressure sensor, wherein the displacement sensor and the pressure sensor are each electrically connected to the control device; the pressure sensor is arranged between the upper end of the push rod and the extrusion cylinder body assembly and is used for detecting the pressure between the push rod and the extrusion cylinder body assembly, the electronic head of the displacement sensor is arranged on the frame, and the moving shaft of the displacement sensor is vertically arranged and the end part of the moving shaft of the displacement sensor is fixed at the bottom of the extrusion cylinder body assembly.
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| CN201710822643.8A CN107521021B (en) | 2017-09-13 | 2017-09-13 | Device for extrusion molding of collagen |
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| CN201710822643.8A CN107521021B (en) | 2017-09-13 | 2017-09-13 | Device for extrusion molding of collagen |
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