CN216544396U

CN216544396U - Feeding device of injection molding machine

Info

Publication number: CN216544396U
Application number: CN202123384447.8U
Authority: CN
Inventors: 樊贺江; 卢大雄; 匡曾耀
Original assignee: Shaoxing Seeme Packaging Co ltd
Current assignee: Shaoxing Seeme Packaging Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-05-17
Anticipated expiration: 2031-12-28

Abstract

The application relates to a feeding device of injection molding machine, it includes controller and charging barrel, the charge door has been seted up at the charging barrel top, charge door department is equipped with the material loading valve, the discharge gate has been seted up to the charging barrel bottom, the charging barrel has the discharging pipe through the discharge gate intercommunication, the discharging pipe is used for with the barrel intercommunication, discharge gate department is equipped with weighing sensor, weighing sensor is connected with the driving piece, the driving piece is used for the drive weighing sensor opens or closes the discharge gate, the controller with the material loading valve weighing sensor the driving piece electricity is connected. The application has the following effects: the controller controls the consumption of the raw material, so that the accuracy of calculating the consumption of the raw material can be improved.

Description

Feeding device of injection molding machine

Technical Field

The application relates to the field of injection molding machines, in particular to a feeding device of an injection molding machine.

Background

At present, an injection molding machine is a main molding device for making thermoplastic plastics or thermosetting plastics into plastic products with various shapes by using a plastic molding die. The technological process includes the first adding granular or powdered plastic into the barrel, heating the barrel to melt the plastic, closing the mold and moving the injection seat forwards, making the nozzle close to the sprue channel of the mold, introducing pressurized oil into the injection cylinder to push the screw forwards, so as to inject the molten material into the closed mold with relatively low temperature and high pressure, maintaining and cooling for certain time and pressure to solidify and mold.

The traditional mode for calculating the consumption of the injection molding machine is that an operator weighs raw materials firstly, and then weighs excess materials after the injection molding machine finishes working, and the consumption of the injection molding machine is calculated according to the weight difference of the raw materials and the excess materials, but the precision of the mode adopting manual weighing calculation is lower.

SUMMERY OF THE UTILITY MODEL

In order to improve the precision of calculating the raw material consumption of the injection molding machine, the application provides a feeding device of the injection molding machine.

The application provides a feed arrangement of injection molding machine adopts following technical scheme:

a feeding device of an injection molding machine comprises a controller and a feeding barrel, wherein a feeding port is formed in the top of the feeding barrel, a feeding valve is arranged at the feeding port, a discharging port is formed in the bottom of the feeding barrel, the feeding barrel is communicated with a discharging pipe through the discharging port, the discharging pipe is used for being communicated with a machine barrel, a weighing sensor is arranged at the discharging port, the weighing sensor is connected with a driving piece, and the driving piece is used for driving the weighing sensor to open or close the discharging port;

the controller is electrically connected with the feeding valve, the weighing sensor and the driving piece, the weighing sensor is used for detecting the pressure of the raw materials and outputting a pressure signal, the controller receives the pressure signal and compares the pressure value with a preset value, when the pressure value is smaller than the preset value, the controller delays to output a first control signal, the feeding valve responds to the first control signal and delays to open, and the driving piece responds to the first control signal and delays to drive the weighing sensor to close the discharge hole; when the pressure value is equal to the preset value, the controller outputs a second control signal, the feeding valve responds to the second control signal and is closed, and the driving piece responds to the second control signal and drives the weighing sensor to open the discharge hole.

Through adopting above-mentioned technical scheme, the default of raw materials single consumption pressure is set for to operator's accessible controller, when the material loading valve is opened, in raw materials accessible charge door gets into the charging bucket, weighing sensor output pressure signal, when the raw materials reachs the single consumption, the pressure signal of weighing sensor output equals the default, controller control material loading valve is closed and control driving piece, driving piece drive weighing sensor is in order to open the discharge gate, the raw materials gets into barrel processing through the discharge gate. When the raw materials enter the discharge port, the pressure value detected by the weighing sensor is smaller than the preset value, the controller controls the feeding valve and the driving piece to act in a delayed mode, the feeding valve is opened in a delayed mode, the driving piece drives the weighing sensor in a delayed mode to close the discharge port in a delayed mode, the consumption of the raw materials is controlled through the controller, and the accuracy of calculating the consumption of the raw materials can be improved.

Preferably, the bottom of the feeding barrel is provided with a sliding hole, the weighing sensor is connected with the sliding hole in a sliding manner through the driving piece, and the weighing sensor slides along the horizontal direction.

Through adopting above-mentioned technical scheme, the driving piece can drive weighing sensor, makes weighing sensor slide in the hole that slides to this can open or close the discharge gate.

Preferably, the driving part comprises an air cylinder, the air cylinder is electrically connected with the controller, a piston rod of the air cylinder is connected with the weighing sensor, and the piston rod of the air cylinder is used for sliding the weighing sensor in a reciprocating manner to open and close the discharge hole.

Through adopting above-mentioned technical scheme, the steerable cylinder of controller, the piston rod of cylinder can drive weighing sensor to this can make weighing sensor reciprocal the slip in the hole that slides.

Preferably, the driving part comprises a motor, a gear and a rack, the gear is connected with an output shaft of the motor, the gear is meshed with the rack, and the length direction of the rack is consistent with the sliding direction of the weighing sensor.

Through adopting above-mentioned technical scheme, the steerable motor of controller rotates, and the motor rotates and can drive gear revolve, and gear revolve can drive the rack removal, and the rack drives weighing sensor and slides, and the motor can make weighing sensor open or close the discharge gate through corotation or reversal.

Preferably, be equipped with the screening board in the charging bucket, the screening board is located the weighing sensor top, a plurality of screening holes have been seted up to the screening board.

Through adopting above-mentioned technical scheme, the screening plate can screen great raw materials granule, and less raw materials granule accessible screening hole reaches weighing sensor department, can make during less raw materials granule gets into the barrel, has improved the granule regularity of the raw materials that get into in the barrel to this can improve off-the-shelf quality.

Preferably, the recovery mouth has been seted up to the charging bucket lateral wall, recovery mouth department is connected with the recovery tube, the screening plate slope sets up, the least significant end of screening plate connect in the least significant department of recovery mouth for the discharge is stayed raw materials on the screening plate.

Through adopting above-mentioned technical scheme, great raw materials granule can be discharged by the recovery tube and retrieve by self gravity entering recovery mouth, can avoid raw materials granule to block up the screening hole as far as possible.

Preferably, the groove that slides has been seted up to the charging bucket inside wall, the jack has been seted up to the charging bucket lateral wall, the jack with the groove intercommunication that slides, the screening plate inserts the jack and with the groove that slides and is connected.

Through adopting above-mentioned technical scheme, screening board accessible jack can be dismantled with the charging bucket and be connected, and the screening board inserts in the jack, can slide with the groove of sliding and be connected, and the screening board is dismantled the back from the charging bucket, and the operator can clear up the screening board, can avoid the screening board to block up as far as possible.

Preferably, the inner wall of the jack is provided with a sealing element, and when the screening plate is inserted into the jack, one end of the screening plate is tightly attached to the sealing element.

Through adopting above-mentioned technical scheme, the leakproofness between screening board and the jack inner wall can be improved to the sealing member, can avoid the raw materials in the charging bucket to spill from the jack as far as possible to this precision that can improve the calculation raw materials consumption.

Preferably, the sealing element comprises a rubber strip which is adhered to the inner wall of the jack.

Through adopting above-mentioned technical scheme, the leakproofness between screening board and the jack inner wall can be improved to the rubber strip, and the change is dismantled to the convenience.

Preferably, feed inlet department intercommunication has the filling tube, the filling tube is connected with the fan, the fan with the controller electricity is connected, the fan responds to first control signal and opens, the fan responds to second control signal and shuts down.

Through adopting above-mentioned technical scheme, the raw materials can be carried by the fan, and during accessible filling tube got into the charging bucket, the switch of controller accessible first control signal and second control signal control fan to this control fan is to the raw materials volume of carrying in the charging bucket.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the feeding valve is opened, raw materials can enter the feeding barrel through the feeding port, the weighing sensor outputs pressure signals, when the raw materials reach single consumption, the pressure signals output by the weighing sensor are equal to a preset value, the controller controls the feeding valve to be closed and controls the driving piece, the driving piece drives the weighing sensor to open the discharge port, the raw materials enter the barrel for processing through the discharge port, when the raw materials enter the discharge port, the pressure value detected by the weighing sensor is smaller than the preset value, the controller controls the feeding valve and the driving piece to act in a delayed mode, the feeding valve is opened in a delayed mode, the driving piece drives the weighing sensor to close the discharge port in a delayed mode, the consumption of the raw materials is controlled through the controller, and the precision of calculating the consumption of the raw materials can be improved;

2. the screening plate can screen larger raw material particles, the smaller raw material particles can reach the weighing sensor through the screening holes, the smaller raw material particles can enter the machine barrel, and the particle uniformity of the raw material entering the machine barrel is improved, so that the quality of a finished product can be improved;

3. the sealing member can improve the leakproofness between sieve plate and the jack inner wall, can avoid the raw materials in the charging bucket to spill from the jack as far as possible to this precision that can improve the calculation raw materials consumption.

Drawings

Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present application.

Fig. 2 is a schematic diagram of an explosive structure of embodiment 1 of the present application.

Fig. 3 is a side view of the entire structure of embodiment 1 of the present application.

Fig. 4 is a schematic sectional view taken along line a-a of fig. 3.

Fig. 5 is a schematic view of the overall structure of embodiment 2 of the present application.

Description of reference numerals:

100. a barrel;

200. a charging barrel; 201. a feeding valve; 202. a discharge pipe; 203. a weighing sensor; 204. a cylinder; 205. a feed tube; 206. a motor; 207. a gear; 208. a rack; 209. screening the plate; 210. a screening well; 211. a recovery pipe; 212. a sliding groove; 213. a jack; 214. a seal member; 215. a fan.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings.

The embodiment of the application discloses a feeding device of an injection molding machine.

Example 1:

referring to fig. 1, the feeding device of the injection molding machine comprises a controller and a feeding barrel 200, wherein a feeding pipe 205 for feeding is connected to the top of the feeding barrel 200, a discharging pipe 202 for discharging is connected to the bottom of the feeding barrel 200, and the discharging pipe 202 is connected to the barrel 100 and is used for inputting raw materials in the feeding barrel 200 into the barrel 100. The bottom of the charging barrel 200 is provided with a weighing sensor 203 for detecting the weight of the raw material, the weighing sensor 203 is electrically connected with a controller, the controller is used for controlling the amount of the raw material entering the barrel 100 according to the weight of the raw material detected by the weighing sensor 203, the consumption of the raw material is controlled by the controller, and the precision of calculating the consumption of the raw material can be improved.

Referring to fig. 2 and 3, the charging barrel 200 is a hollow cuboid, a charging opening is opened at the top of the charging barrel, and the charging pipe 205 conveys the raw materials into the charging barrel 200 through the charging opening. The other end of the discharging pipe 202 is connected with a fan 215, and the raw material is transported to the charging pipe 205 through the fan 215.

Referring to fig. 3 and 4, a feeding valve 201 is disposed at the feeding port, and the feeding valve 201 may be a valve with a driver, and the driver may be a motor that drives the feeding valve 201 to move horizontally. In other embodiments, a solenoid valve may be used. The feeding valve 201 is electrically connected with a controller, the controller adopts an S7-200 PLC, and the controller can control the feeding valve 201 to open or close the feeding port. The bottom of the charging barrel 200 is provided with a discharge hole, and the discharge pipe 202 conveys the raw materials into the machine barrel 100 through the discharge hole.

The hole of sliding has been seted up to charging bucket 200 bottom, and the hole of sliding sets up along the horizontal direction, and the hole of sliding communicates with charging bucket 200 inner chamber. Weighing sensor 203 slides with the hole of sliding and is connected to this can be in the charging bucket 200 outer reciprocal sliding, when weighing sensor 203 was located charging bucket 200, weighing sensor 203 can block up the discharge gate, and the raw materials is carried to weighing sensor 203 by the charge door on, when weighing sensor 203 slided outward toward charging bucket 200, the raw materials can be followed weighing sensor 203 and dropped to the discharge gate, with this carry to in barrel 100.

Weighing sensor 203 slides through the driving piece is reciprocal, and the driving piece can adopt cylinder 204, and the piston rod level setting of cylinder 204 just is connected with weighing sensor 203, and the cylinder 204 shell passes through the screw to be connected with charging bucket 200 lateral wall. The air cylinder 204 is electrically connected with a controller, and the controller can control the piston rod of the air cylinder 204 to reciprocate, so that the weighing sensor 203 can be moved in a reciprocating manner.

Referring to fig. 2 and 4, jack 213 has been seted up on the lateral wall of charging bucket 200, jack 213 length direction is along the horizontal direction, jack 213 and charging bucket 200 inner chamber intercommunication, charging bucket 200 has been close to and has been seted up on the inside wall at jack 213 both ends and slided groove 212, slided groove 212 and jack 213 intercommunication, it is just right to slide two slided grooves 212 on contained angle and two inside walls that groove 212 length direction and charging bucket 200 top surface are, it is connected with screening plate 209 to slide in the groove 212, screening plate 209 is the rectangular plate, both sides are located the groove 212 that slides behind the one end of screening plate 209 inserted jack 213. When the screening plate 209 is fully inserted into the insertion hole 213, the screening plate 209 is positioned in the inner cavity of the charging bucket 200 and between the charging valve 201 and the weighing sensor 203. The screening plate 209 is provided with a plurality of screening holes 210, and the length direction of the screening holes 210 is vertical to the surface of the weighing sensor 203.

The setting of slope in charging bucket 200 of screening board 209, charging bucket 200 inner wall and the lowest junction of screening board 209 have been seted up and have been retrieved the mouth, retrieve mouthful and charging bucket 200 inner chamber intercommunication, retrieve the mouth and set up in charging bucket 200 with set up jack 213 just right lateral wall on, charging bucket 200 has recovery tube 211 through retrieving mouthful intercommunication. During raw materials got into screening board 209 inner chamber from the charge door, through screening board 209 screening, the great raw materials of granule got into recovery tube 211 through retrieving the mouth and retrieves, and the raw materials through screening hole 210 drops to weighing sensor 203 on.

The implementation principle of the embodiment 1 is as follows: an operator sets a preset value of the pressure of the single consumption of the raw materials through a controller, the weighing sensor 203 is used for detecting the pressure of the raw materials and outputting a pressure signal, the controller receives the pressure signal and compares the pressure value with the preset value, when the raw materials on the weighing sensor 203 do not reach the single consumption, namely when the pressure value is smaller than the preset value, the controller delays to output a first control signal, the feeding valve 201 responds to the first control signal and delays to open, the air cylinder 204 responds to the first control signal and delays to drive the weighing sensor 203 to close the discharge hole, and at the moment, the raw materials enter the feeding barrel 200 through the feeding hole and are conveyed to the weighing sensor 203; when the amount of the raw material on the weighing sensor 203 is equal to the single consumption amount, that is, when the pressure value is equal to the preset value, the controller outputs a second control signal, the feeding valve 201 responds to the second control signal and closes, the air cylinder 204 responds to the second control signal and drives the weighing sensor 203 to open the discharge port, at this time, the feeding barrel 200 stops feeding, and the raw material in the feeding barrel 200 enters the machine barrel 100 through the discharge port. The controller controls the consumption of the raw material, so that the accuracy of calculating the consumption of the raw material can be improved.

Example 2: a feeding device of an injection molding machine, which is different from embodiment 1 in that a different driving member is used to drive a load cell 203.

Referring to fig. 5, the feeding device of the injection molding machine comprises a driving member, the driving member comprises a motor 206, a gear 207 and a rack 208, the housing of the motor 206 is connected with the side wall of the feeding barrel 200 through a screw, the gear 207 is connected with the output shaft of the motor 206, and the rack 208 is meshed with the gear 207. The rack 208 is horizontally arranged and one end of the rack is connected with the weighing sensor 203. The motor 206 is electrically connected to the controller.

The implementation principle of the embodiment 2 is as follows: the controller can control the forward transmission and the reverse transmission of the motor 206 through the first control signal and the second control signal, the motor 206 can drive the gear 207 to forward transmit and reverse transmit through rotation, the gear 207 can drive the rack 208 to reciprocate through rotation, the rack 208 drives the weighing sensor 203 to move, and the weighing sensor 203 can open or close the discharge hole.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a feed arrangement of injection molding machine which characterized in that: the automatic feeding device comprises a controller and a feeding barrel (200), wherein a feeding port is formed in the top of the feeding barrel (200), a feeding valve (201) is arranged at the feeding port, a discharging port is formed in the bottom of the feeding barrel (200), the feeding barrel (200) is communicated with a discharging pipe (202) through the discharging port, the discharging pipe (202) is used for being communicated with a machine barrel (100), a weighing sensor (203) is arranged at the discharging port, the weighing sensor (203) is connected with a driving piece, and the driving piece is used for driving the weighing sensor (203) to open or close the discharging port;

the controller is electrically connected with the feeding valve (201), the weighing sensor (203) and the driving piece, the weighing sensor (203) is used for detecting the pressure of the raw materials and outputting a pressure signal, the controller receives the pressure signal and compares the pressure value with a preset value, when the pressure value is smaller than the preset value, the controller delays to output a first control signal, the feeding valve (201) responds to the first control signal and delays to open, and the driving piece responds to the first control signal and delays to drive the weighing sensor (203) to close the discharge hole; when the pressure value is equal to the preset value, the controller outputs a second control signal, the feeding valve (201) responds to the second control signal and is closed, and the driving piece responds to the second control signal and drives the weighing sensor (203) to open the discharge hole.

2. The feeding device of an injection molding machine according to claim 1, characterized in that: the hole of sliding has been seted up to reinforced bucket (200) bottom, weighing sensor (203) pass through the driving piece with the hole of sliding slides and is connected, weighing sensor (203) slide along the horizontal direction.

3. The feeding device of an injection molding machine according to claim 2, characterized in that: the driving piece comprises an air cylinder (204), the air cylinder (204) is electrically connected with the controller, a piston rod of the air cylinder (204) is connected with the weighing sensor (203), and the piston rod of the air cylinder (204) is used for sliding the weighing sensor (203) in a reciprocating mode to open and close the discharge hole.

4. The feeding device of an injection molding machine according to claim 2, characterized in that: the driving piece comprises a motor (206), a gear (207) and a rack (208), the gear (207) is connected with an output shaft of the motor (206), the gear (207) is meshed with the rack (208), and the length direction of the rack (208) is consistent with the sliding direction of the weighing sensor (203).

5. The feeding device of an injection molding machine according to claim 1, characterized in that: be equipped with screening plate (209) in reinforced bucket (200), screening plate (209) are located weighing sensor (203) top, a plurality of screening holes (210) have been seted up in screening plate (209).

6. The feeding device of an injection molding machine according to claim 5, characterized in that: the recovery mouth has been seted up to charging bucket (200) lateral wall, recovery mouth department is connected with recovery tube (211), screening plate (209) slope sets up, the least significant end of screening plate (209) connect in the lowest of retrieving the mouth is used for the discharge to stay raw materials on screening plate (209).

7. The feeding device of an injection molding machine according to claim 5, characterized in that: charging barrel (200) inside wall has been seted up and has been slided groove (212), charging barrel (200) lateral wall has been seted up jack (213), jack (213) with slide groove (212) intercommunication, screening plate (209) insert jack (213) and with slide groove (212) and slide and connect.

8. The feed apparatus of an injection molding machine according to claim 7, characterized in that: the inner wall of the jack (213) is provided with a sealing element (214), the screening plate (209) is plugged into the jack (213), and one end of the screening plate (209) is tightly attached to the sealing element (214).

9. The feed apparatus of an injection molding machine according to claim 8, characterized in that: the sealing element (214) comprises a rubber strip which is adhered to the inner wall of the jack (213).

10. The feeding device of an injection molding machine according to claim 1, characterized in that: feed inlet department intercommunication has filling tube (205), filling tube (205) are connected with fan (215), fan (215) with the controller electricity is connected, fan (215) respond to first control signal and open, fan (215) respond to second control signal and close.