Precision combined pelletizer

Abstract

The present invention discloses a precision combined pelletizer, including a frame, symmetrically provided with side vertical plates at the upper end of the frame, and a conveyor belt mechanism between the two side vertical plates, a support plate installed on the two side vertical plates through a slide rail, a knife holder fixing frame is provided below the support plate, and the knife holder fixing frame is connected to the support plate through a symmetrically arranged guide assembly; a reciprocating drive mechanism is installed on the support plate, and the reciprocating drive mechanism is connected to the knife holder fixing frame in a transmission manner; a blade mounting plate is inserted on the knife holder fixing frame, and a plurality of cutting blades are clamped on the blade mounting plate; a material stripping plate is provided below the support plate, and the material stripping plate is hoisted on the support plate, and a plurality of strip-shaped jacks are evenly distributed on the material stripping plate, and the strip-shaped jacks correspond to the cutting blades one by one and have clearance fit; a translation drive device is provided at one end of the two side vertical plates, and the translation drive device is connected to the support plate. The machine can ensure that the length of the gas-producing medicine particles is consistent, the particle size is uniform, and the burning rate is stable, and at the same time, it can reduce waste medicine and reduce product costs.

Description

Technical Field

[0001] The invention relates to the field of gas generating medicine production for gas generators, and in particular to a precision combined pelletizer for ensuring high-precision medicine particle length. Background Art

[0002] When a car collides, the gas generator inside the car detonates to generate gas to inflate the airbag, which protects the passengers. The accuracy of the length of the gas-generating agent used in the gas generator has a great influence on the combustion speed and duration of the gas-generating agent. The combustion speed and time of the gas-generating agent affect the consistency of the gas generator pressure output, further affecting the filling time of the airbag and the protection effect on the passengers. The consistency of the length of the agent is the ideal goal in the production of gas-generating agents. The traditional cutting method is to cut the material with a rotary cutter. The feed speed and the rotary speed of the cutter are inconsistent. The cross-section of the cut of the agent is an inclined plane, resulting in different lengths of the agent. The agent is a long cylindrical strip. When screening, the long agent can leak through the sieve hole even if it is vertically inverted. Therefore, the traditional cutter rotary cutting agent cannot ensure the consistency of the length of the agent even if screening; at the same time, a lot of waste drugs are generated, and the cost of gas-generating agents is high. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a precision combined pelletizer which can ensure that the length of gas-generating medicine particles is consistent, the particle size is uniform, and the burning rate is stable, while reducing waste medicine and lowering product costs.

[0004] The technical solution of the present invention is as follows:

[0005] A precision combined pelletizer comprises a frame, two side vertical plates are symmetrically arranged at the upper end of the frame, a conveyor belt mechanism is supported between the two side vertical plates, a support plate is installed on the two side vertical plates through mutually cooperating slide rails and sliders, a knife holder fixing frame is arranged below the support plate, and the knife holder fixing frame is connected to the support plate through symmetrically arranged guide components; a reciprocating drive mechanism is installed on the support plate, and the reciprocating drive mechanism is transmission-connected with the knife holder fixing frame for driving the knife holder fixing frame to reciprocate in the vertical direction;

[0006] A blade mounting plate is detachably mounted on the blade holder fixing frame, and a plurality of equally spaced cutting blades are clamped on the blade mounting plate by a plurality of clamping plates, and the distance between two adjacent cutting blades is equal to the length of the gas-generating medicine grains to be cut;

[0007] A stripping plate is provided under the support plate, and the stripping plate is hoisted on the support plate through symmetrically arranged connecting columns, and a plurality of strip-shaped plug holes are evenly distributed on the stripping plate, and the strip-shaped plug holes correspond to the cutting blades one by one and the clearances are matched;

[0008] A translation drive device is provided at one end of the two side plates, and the translation drive device is connected to the support plate and is used to drive the support plate and the tool holder fixing frame, reciprocating drive mechanism and material stripping plate installed on the support plate to reciprocate horizontally.

[0009] As a further preference, the tool holder fixing frame is composed of an upper hanging plate and two tool holder supporting plates symmetrically fixed to the bottom surface of the upper hanging plate, the tool holder supporting plates are angle iron-shaped, and the upper portion of the blade mounting plate is inserted into a slot formed by the two tool holder supporting plates.

[0010] As a further preference, rectangular slots are symmetrically provided on both sides of the blade mounting plate for clamping on two tool holder support plates.

[0011] As a further preference, two rectangular grooves are symmetrically provided on the bottom surface of the blade mounting plate and optical axes are respectively provided in the rectangular grooves, one end of the optical axis is connected to the end plate provided at one end of the blade mounting plate, and rectangular bosses are symmetrically provided on the upper end of the clamping plate and are respectively inserted into the rectangular grooves and sleeved on the optical axis.

[0012] As a further preference, the cutting blades are respectively clamped between two adjacent clamping plates, and the upper end surfaces of the cutting blades are pressed against the bottom surface of the blade mounting plate.

[0013] As a further preference, a plurality of top screws are evenly distributed at the lower part of the end plate. After passing through the end plate, the top screws are pressed against the adjacent clamping plates to tighten the plurality of cutting blades.

[0014] As a further preference, the guide assembly comprises a guide shaft fixed on the knife holder fixing frame and a guide sleeve fixed on the support plate. The guide shaft passes through the guide sleeve and is sleeved with a pressure spring for resetting the cutting blade after cutting medicine.

[0015] As a further preference, the reciprocating drive mechanism includes a rotatable camshaft installed in the middle of the support plate, a servo motor is installed on the support plate through a bracket, the output shaft of the servo motor is connected to the camshaft through a synchronous belt drive, a cam is installed on the camshaft, and a bearing is installed at a corresponding cam on the tool holder fixed frame through a shaft seat, the bearing passes through a square hole provided on the support plate and rests against the outer edge of the cam under the action of a pressure spring.

[0016] As a further preference, positioning columns are fixed on the support plate at corresponding connecting columns, positioning grooves are provided on the positioning columns, and two strip holes are provided on the connecting columns. The connecting columns are respectively inserted into the positioning grooves of the positioning columns and connected to the positioning columns by bolts passing through the strip holes so as to adjust the position of the stripping plate.

[0017] As a further preference, a limit slot is provided at the upper end of the positioning column, and an adjustment screw is provided in the limit slot. The lower end of the adjustment screw passes through the limit slot and is threadedly connected to the connecting column for fine-tuning the position of the stripping plate.

[0018] As a further preference, a laser sensor is provided on the conveyor belt of the conveyor belt mechanism corresponding to the other end of the side plate for detecting the gas-generating agent.

[0019] As a further preference, the translation driving device is two cylinders, and the two cylinders are respectively arranged at one end of the two side vertical plates through cylinder support plates.

[0020] As a further preference, a receiving hopper is provided on the frame at one end of the side plate for guiding the cut medicine pellets into a material box below.

[0021] The beneficial effects of the present invention are:

[0022] 1. Since a blade mounting plate is detachably mounted on the blade holder fixing frame, a plurality of equidistantly arranged cutting blades are clamped on the blade mounting plate by a plurality of clamping plates, and the distance between two adjacent cutting blades is equal to the length of the gas-generating medicine particles to be cut; the blade holder fixing frame is driven to reciprocate in the vertical direction by a reciprocating drive mechanism arranged on the support plate, thereby realizing vertical downward cutting of multiple blades at the same time, and the length of the medicine particles after cutting is uniform, thereby ensuring the consistency of the burning rate and time of the gas-generating medicine particles; it can improve the consistent output of the pressure of the gas generator, ensure the performance of the gas generator, further ensure the consistency of the filling time of the airbag, and improve the protection effect on the passengers.

[0023] 2. It can significantly reduce the scrap rate of cutting medicine, reduce product costs, improve production efficiency and economic benefits, and provide guarantees for the research and development and performance improvement of gas generators. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present invention.

[0025] Figure 2 yes Figure 1 Left view of .

[0026] Figure 3 yes Figure 1 Top view of the .

[0027] Figure 4 yes Figure 1 A partial enlarged view of .

[0028] Figure 5 yes Figure 4 AA section view.

[0029] Figure 6 It is a three-dimensional structural schematic diagram of the blade mounting plate.

[0030] In the figure: pressure cover 1, pressure spring 2, positioning column 3, guide sleeve 4, support plate 5, side plate 6, connecting column 7, gas-producing medicine strip 8, conveyor belt mechanism 9, synchronous belt mechanism 10, adjustment screw 11, guide shaft 12, upper hanging plate 13, tool holder support plate 14, blade mounting plate 15, rectangular slot 151, rectangular groove 152, stepped hole 153, clamping plate 16, stripping plate 17, cutting blade 18, driving motor 19, hopper 20, servo motor 21, bracket 22, bearing seat 23, frame 24, camshaft 25, guide rail 26, cylinder 27, cylinder support plate 28, synchronous belt mechanism 29, slider 30, laser sensor 31, end plate 32, top screw 33, optical axis 34, bearing 35, cam 36, shaft seat 37. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] like Figure 1-Figure 6 As shown, the present invention relates to a precision combined pelletizer, which includes a frame 24, on which two side panels 6 are symmetrically fixed on the top plate at the upper end of the frame 24, a conveyor belt mechanism 9 is supported between the two side panels 6, and a driving shaft of the conveyor belt mechanism 9 is connected to a driving motor 19 arranged on one side of the frame 24 through a synchronous belt mechanism 29.

[0033] A horizontally arranged guide rail 26 is fixed to the upper ends of the two side vertical plates 6, and a support plate 5 is provided above the two guide rails 26. Two slide blocks 30 are fixed to the two ends of the bottom surface of the support plate 5, and the slide blocks 30 are installed on the corresponding slide rails through sliding fit. A tool holder fixing frame is provided below the support plate 5, and the tool holder fixing frame is connected to the support plate 5 through two sets of symmetrically arranged guide components; the tool holder fixing frame is composed of an upper hanging plate 13 and two tool holder supporting plates 14 symmetrically fixed to the bottom surface of the upper hanging plate 13, and the tool holder supporting plates 14 are angle iron-shaped and the two tool holder supporting plates 14 form a stepped slot.

[0034] The guide assembly includes a guide shaft 12 fixed on the upper hanging plate 13 and a guide sleeve 4 fixed on the support plate 5. The guide shaft 12 passes through the guide sleeve 4 and is sleeved with a pressure spring 2. The pressure spring 2 is limited by a pressure cover 1 connected to the upper end of the guide shaft 12 and is used to reset the cutting blade after cutting the medicine.

[0035] A blade mounting plate 15 is detachably mounted on the tool holder fixing frame, and the upper portion of the blade mounting plate 15 is mounted in a slot formed by two tool holder supporting plates 14. The blade mounting plate 15 is symmetrically provided with rectangular slots 151 on both sides, and is clamped on the two tool holder supporting plates 14 through the rectangular slots 151. A plurality of equally spaced cutting blades 18 are clamped on the blade mounting plate 15 by a plurality of clamping plates 16. The cutting blades 18 are wallpaper blades, and the distance between two adjacent cutting blades 18 is equal to the length of the gas-generating medicine particles to be cut. This embodiment takes 40 cutting blades 18 clamped by 41 clamping plates 16 as an example.

[0036] Two rectangular grooves 152 are symmetrically provided on the bottom surface of the blade mounting plate 15, and optical axes 34 are respectively provided in the rectangular grooves 152. One end of the optical axis 34 is connected to the end plate 32 provided at one end of the blade mounting plate 15 by bolts, and the other end of the optical axis 34 is connected to the stepped hole 153 at the other end of the blade mounting plate 15 by bolts. Two rectangular bosses are symmetrically provided on the upper end of the clamping plate 16 and are respectively inserted into the rectangular grooves 152 and sleeved on the optical axis 34.

[0037] The cutting blades 18 are respectively clamped between two adjacent clamping plates 16, and the upper end surface of the cutting blade 18 is against the bottom surface of the blade mounting plate 15. A plurality of top screws 33 are evenly arranged at the lower part of the end plate 32, and the top screws 33 pass through the end plate 32 and are pressed against the adjacent clamping plates 16 to tighten the plurality of cutting blades 18.

[0038] A reciprocating drive mechanism is installed on the support plate 5, and the reciprocating drive mechanism is drivingly connected to the tool holder fixing frame for driving the tool holder fixing frame to reciprocate in the vertical direction.

[0039] The reciprocating drive mechanism includes a rotatable camshaft 25 installed in the middle of the support plate 5 through two bearing seats 23, a servo motor 21 is installed on the support plate 5 through a bracket 22, the output shaft of the servo motor 21 is connected to the camshaft 25 through a synchronous belt mechanism 10, a cam 36 is installed on the camshaft 25, and a bearing 35 is installed on the tool holder fixing frame at a position corresponding to the cam 36 through a shaft seat 37, the shaft seat and the bearing 35 pass through the square hole provided on the support plate 5 and under the action of the pressure spring 2, the bearing 35 is pressed against the outer edge of the cam 36.

[0040] A stripping plate 17 is also provided below the support plate 5. The stripping plate 17 is hoisted on the support plate 5 on both sides through four symmetrically arranged connecting columns 7. A plurality of strip-shaped sockets are evenly distributed on the stripping plate 17. The strip-shaped sockets correspond to the cutting blades 18 one by one and have clearance fit. The lower end of the cutting blade 18 is inserted into the corresponding strip-shaped socket.

[0041] Positioning columns 3 are fixed to the supporting plate 5 at the corresponding connecting columns 7 by bolts, positioning grooves are provided on the positioning columns 3 along the longitudinal direction, and two strip holes are provided on the connecting columns 7. The connecting columns 7 pass through the supporting plate 5 and are inserted into the positioning grooves of the positioning columns 3 and are connected to the positioning columns 3 by bolts passing through the strip holes, so as to adjust the position of the stripping plate 17.

[0042] A limit slot is provided at the upper end of the positioning column 3 , and an adjusting screw 11 is provided in the limit slot. The lower end of the adjusting screw 11 passes through the limit slot and is threadedly connected to the upper end of the connecting column 7 for fine-tuning the position of the stripping plate 17 .

[0043] A translation drive device is provided at one end of the two side vertical plates 6, and the translation drive device is connected to the support plate 5, and is used to drive the support plate 5 and the tool holder fixing frame, the reciprocating drive mechanism and the stripper plate 17 installed on the support plate 5 to reciprocate in the lateral direction. The translation drive device is two cylinders 27, and the cylinder bodies of the two cylinders 27 are respectively provided at one end of the two side vertical plates 6 through cylinder support plates 28, and the piston rods of the two cylinders 27 are respectively connected to the support plate 5.

[0044] A laser sensor 31 is provided on the conveyor belt of the conveyor belt mechanism 9 at the other end of the side plate 6 for detecting gas-generating medicine. A receiving hopper 20 is provided on the frame 24 at one end of the side plate 6 for guiding the cut medicine particles into the material box below. The medicine cutting machine is also provided with an automatic controller (not shown in the figure) for receiving the signal of the laser sensor 31 and controlling the operation of the drive motor 19, the servo motor 21 and the two cylinders 27.

[0045] In the initial state, the two cylinders 27 are in the extended state, so that the support plate 5 and the knife holder fixed frame installed on the support plate 5, the reciprocating drive mechanism and the stripping plate 17 are close to one end of the feeding port of the conveyor belt mechanism 9. During operation, the gas generating medicine strip 8 extruded by the extruder is conveyed to the conveyor belt of the conveyor belt mechanism 9. When the gas generating medicine strip 8 moves to the position of the last cutting blade 18, the laser sensor 31 outputs a signal to the automatic controller to control the servo motor 21 to start. After the servo motor 21 starts, it drives the cam 36 to rotate, thereby driving the knife holder fixed frame and the cutting blade 18 to move downward through the bearing 35 and pass through the stripping plate 17 to cut the medicine, and at the same time, the pressure spring 2 is compressed.

[0046] After the medicine cutting is completed, the servo motor 21 drives the cam 36 to move slightly. The cutting blade 18 moves up about 0.5 mm along with the knife holder fixing frame under the action of the pressure spring 2, and then the servo motor 21 stops working. The cylinder 27 retracts and drives the support plate 5 and the cutting blade 18 and other components to move forward. The medicine particles move forward along with the cutting blade. After reaching the position, the servo motor 21 starts and drives the cam 36 to rise to the initial position. The material removal plate 17 blocks the cut medicine particles, and the medicine particles fall on the conveyor belt and are transported by the conveyor belt into the receiving hopper 20.

[0047] After the cam 36 is raised, the cylinder 27 extends to push the supporting plate 5 and other components to move backwards, returning to the initial position before cutting the medicine, and completing a medicine cutting cycle.

[0048] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A precision combined pelletizer, comprising a frame, characterized in that: Two side vertical plates are symmetrically arranged at the upper end of the frame, a conveyor belt mechanism is supported between the two side vertical plates, a support plate is installed on the two side vertical plates through mutually cooperating slide rails and sliders, a tool holder fixing frame is provided below the support plate, and the tool holder fixing frame is connected to the support plate through symmetrically arranged guide components; a reciprocating drive mechanism is installed on the support plate, and the reciprocating drive mechanism is transmission-connected with the tool holder fixing frame for driving the tool holder fixing frame to reciprocate in the vertical direction; A blade mounting plate is detachably mounted on the blade holder fixing frame, and a plurality of equally spaced cutting blades are clamped on the blade mounting plate by a plurality of clamping plates, and the distance between two adjacent cutting blades is equal to the length of the gas-generating medicine grains to be cut; The tool holder fixing frame is composed of an upper hanging plate and two tool holder supporting plates symmetrically fixed to the bottom surface of the upper hanging plate, the tool holder supporting plates are angle iron-shaped, and the upper part of the blade mounting plate is inserted into a slot formed by the two tool holder supporting plates; A stripping plate is provided under the support plate, and the stripping plate is hoisted on the support plate through symmetrically arranged connecting columns, and a plurality of strip-shaped plug holes are evenly distributed on the stripping plate, and the strip-shaped plug holes correspond to the cutting blades one by one and the clearances are matched; A translation drive device is provided at one end of the two side plates, and the translation drive device is connected to the support plate, and is used to drive the support plate and the tool holder fixing frame, the reciprocating drive mechanism and the stripping plate installed on the support plate to reciprocate in the lateral direction; Two rectangular grooves are symmetrically arranged on the bottom surface of the blade mounting plate, and optical axes are respectively arranged in the rectangular grooves, one end of the optical axis is connected to the end plate arranged at one end of the blade mounting plate, and rectangular bosses are symmetrically arranged on the upper end of the clamping plate and are respectively inserted into the rectangular grooves and sleeved on the optical axis; The cutting blades are respectively clamped between two adjacent clamping plates, and the upper end surfaces of the cutting blades are pressed against the bottom surface of the blade mounting plate; A plurality of top screws are evenly distributed at the lower part of the end plate. After passing through the end plate, the top screws are pressed against the adjacent clamping plates to tighten the plurality of cutting blades.

2. The precision combined pelletizer according to claim 1 is characterized in that: The guide assembly comprises a guide shaft fixed on the knife holder fixing frame and a guide sleeve fixed on the support plate. The guide shaft passes through the guide sleeve and is sleeved with a pressure spring for resetting the cutting blade after cutting medicine.

3. The precision combined pelletizer according to claim 2 is characterized in that: The reciprocating drive mechanism includes a rotatable camshaft installed in the middle of the support plate, a servo motor is installed on the support plate through a bracket, the output shaft of the servo motor is connected to the camshaft through a synchronous belt drive, a cam is installed on the camshaft, and a bearing is installed at the corresponding cam on the tool holder fixing frame through a shaft seat, the bearing passes through a square hole provided on the support plate and rests against the outer edge of the cam under the action of a pressure spring.

4. The precision combined pelletizer according to claim 1 is characterized in that: Positioning columns are fixed on the supporting plate at the corresponding connecting columns, positioning grooves are provided on the positioning columns, and two strip holes are provided on the connecting columns. The connecting columns are respectively inserted into the positioning grooves of the positioning columns and connected to the positioning columns by bolts passing through the strip holes, so as to adjust the position of the stripping plate.

5. The precision combined pelletizer according to claim 4 is characterized in that: A limit slot is provided at the upper end of the positioning column, and an adjusting screw is provided in the limit slot. The lower end of the adjusting screw passes through the limit slot and is connected to the connecting column through a thread, so as to fine-tune the position of the stripping plate.

6. The precision combined pelletizer according to claim 1 is characterized in that: A laser sensor is provided on the conveyor belt corresponding to the conveyor belt mechanism at the other end of the side vertical plate for detecting the gas-generating medicine.

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