CN219686252U

CN219686252U - Foaming forming device for recycling polyolefin foam material leftover materials

Info

Publication number: CN219686252U
Application number: CN202321313751.XU
Authority: CN
Inventors: 胡洪山; 黄文生; 孟国清
Original assignee: Guangzhou Ouxiang Thermal Insulation Material Co ltd
Current assignee: Guangzhou Ouxiang Thermal Insulation Material Co ltd
Priority date: 2023-05-26
Filing date: 2023-05-26
Publication date: 2023-09-15
Anticipated expiration: 2033-05-26

Abstract

The utility model discloses a foaming forming device for recycling polyolefin foam material scraps, which comprises a bracket and a discharge tank for placing scraps, wherein supporting legs of the bracket are arranged at intervals along the circumferential direction of the discharge tank, the bracket is provided with a control cabinet, the top of the discharge tank is provided with a die pressing plate, the peripheral wall of the die pressing plate is in butt joint with the inner wall of the discharge tank, a driving component for lifting the die pressing plate is connected between the die pressing plate and the bracket, the outer bottom of the discharge tank is provided with a heating component for heating the scraps placed in the discharge tank, the bracket is also provided with an acousto-optic prompter for reminding the temperature of the scraps in the discharge tank, and the acousto-optic prompter is coupled with a temperature detection circuit for controlling the on-off of the acousto-optic prompter. The utility model has the effect of improving the production quality of the recovery of the polyolefin foam material leftover materials.

Description

Foaming forming device for recycling polyolefin foam material leftover materials

Technical Field

The utility model relates to the field of foaming materials, in particular to a foaming forming device for recycling polyolefin foaming material leftover materials.

Background

The polyolefin foam material has the characteristics of excellent heat resistance, easy recovery and the like, and has obvious trend of replacing the traditional foam material under the background of continuously improving global industrial upgrading and reconstruction and environmental protection requirements, and has wide market prospect.

At present, a great deal of leftover materials are often generated in the production process of the polyolefin foam material, and resource waste is easily caused. Therefore, the leftover materials are generally recycled and remolded, and the resource waste is avoided.

In the prior art, the leftover materials are added into the foaming forming machine, the leftover materials are recombined into a whole by heating the leftover materials, so that the recovery treatment of the leftover materials is realized, the shape and the volume of the leftover materials are not uniform, the quantity of the leftover materials added into the foaming forming machine is difficult to determine, the heating temperature of the leftover materials is difficult to control by fixing the heating time in the heating process of the leftover materials in different batches, the recovery quality of the leftover materials in different batches is different, and the recovery production quality of the leftover materials of the polyolefin foaming materials is reduced, so that improvement is needed.

Disclosure of Invention

The utility model provides a foaming forming device for recycling polyolefin foam material leftover materials in order to improve the production quality of recycling the polyolefin foam material leftover materials.

The utility model provides a foaming forming device for recycling polyolefin foam material scraps, which adopts the following technical scheme:

the utility model provides a polyolefin foam leftover bits are retrieved and are used foaming forming device, includes the support and is used for placing the blowing pond of leftover bits, the landing leg of support is followed the circumference interval setting in blowing pond, the support is installed the switch board, the top in blowing pond is provided with the moulded board, the perisporium of moulded board with the inner wall butt in blowing pond, be connected with between moulded board with the support and be used for the lift the drive assembly of moulded board, heating element is installed to the outer bottom in blowing pond, heating element is used for heating place in the leftover bits in the blowing pond, the support is still installed and is used for reminding the acousto-optic cue of leftover bits temperature in the blowing pond, the acousto-optic cue is coupled with the temperature detection circuit that is used for controlling the acousto-optic cue is opened and close, the temperature detection circuit includes, temperature sensor, temperature comparison unit and switch unit;

the temperature sensor is embedded in the inner side wall of the discharging pool and is used for detecting the overall temperature of leftover materials in the discharging pool and sending out a temperature detection signal;

the temperature comparison unit is coupled to the temperature sensor and is provided with a threshold signal VREF, so as to send out a temperature comparison signal when the temperature detection signal is greater than the threshold signal VREF; when the temperature detection signal is smaller than the threshold signal VREF, a temperature comparison signal is not sent out;

the switch unit is coupled to the temperature comparison unit and is connected in series in the power supply loop of the acousto-optic prompter, so that the power supply loop of the acousto-optic prompter is conducted when the temperature comparison signal is received, the acousto-optic prompter is started when the starting signal is received, the power supply loop of the acousto-optic prompter is disconnected when the temperature comparison signal is not received, and the acousto-optic prompter is automatically closed when the temperature comparison signal is not received.

Through adopting above-mentioned technical scheme, in heating element to the leftover bits heating process temperature in the blowing pond, sensor real-time detection blowing pond leftover bits's overall temperature, when the temperature is higher than the value that temperature sensor set for, when reaching the temperature that the leftover bits fused the requirement, temperature detection signal is greater than threshold value signal VREF this moment, temperature comparison unit sends the start signal to the switch unit, audible and visual indicator starts, when the temperature of detection is less than temperature sensor's setting value, temperature detection signal is less than threshold value signal VREF, temperature comparison unit does not send temperature comparison signal, audible and visual indicator does not start. Therefore, when the leftover materials in the discharging pool are heated to a fixed temperature, the audible and visual prompter is started to remind a worker to stop heating in time and take out the formed leftover materials, and when the leftover materials of the polyolefin foam materials are recovered, the leftover material forming temperatures of different batches are controlled, so that the production variables of the leftover materials of different batches are reduced, the production quality of different batches is unified, and the overall production quality of the leftover materials of the polyolefin foam materials is improved.

Preferably, the temperature comparing unit includes a comparator N1, a first signal input end of the comparator N1 is coupled to the temperature sensor, a second signal input end of the comparator N1 is connected to the threshold signal VREF, and a signal output end of the comparator N1 is coupled to the switching unit.

Through adopting above-mentioned technical scheme, comparator N1 is in real time with first signal input access temperature detection signal and the threshold value signal VREF of second signal input carry out the comparison and output temperature comparison signal, in time carries out the comparison of signal and then the switching unit output switch signal of first time control, realizes the comparison function to the temperature size through comparator N1.

Preferably, the switching unit includes a transistor Q1, a base of the transistor Q1 is coupled to a signal output end of the comparator N1, an emitter of the transistor Q1 is coupled to the power voltage VCC, and a collector of the transistor Q1 is grounded.

By adopting the technical scheme, when the base electrode of the triode Q1 receives the temperature comparison signal, the base electrode of the triode Q1 is converted from low level to high level, the triode Q1 is conducted and sends a switching signal to control the acousto-optic prompter to be opened; when the base electrode of the triode Q1 does not receive the temperature comparison signal, the base electrode of the triode Q1 maintains a low level, the triode Q1 is not conducted, the acousto-optic prompter is kept off, and the function of sending a switching signal by the switching unit is realized.

Preferably, the switch unit further comprises a relay KM1, a coil of the relay KM1 is connected with a collector of the triode Q1 in series and then grounded, the relay KM1 comprises a normally open contact switch KM1-1, and the normally open contact switch KM1-1 is connected in series in a power supply loop.

By adopting the technical scheme, when the triode Q1 is conducted, the coil of the relay KM1 is electrified, the normally open contact switch KM1-1 is closed, and the power supply loop of the acousto-optic prompter is conducted; when the triode Q1 is disconnected, the coil of the relay KM1 is powered off, the normally open contact switch KM1-1 is disconnected again, and the power supply loop of the acousto-optic prompter is disconnected, so that the function of controlling the acousto-optic prompter to be powered off is realized.

Preferably, the driving assembly comprises a plurality of vertically arranged hydraulic pistons, the cylinder bodies of the hydraulic pistons are fixed on the support, and the output end of a piston rod of each hydraulic piston is connected with the top surface of the die pressing plate.

Through adopting above-mentioned technical scheme, hydraulic piston compares conventional piston and provides stronger drive power, and the moulded board weight is heavier, directly mentions the moulded board through hydraulic piston, reduces the loss of energy in the transmission process, and is simple high-efficient.

Preferably, the top surface of the molding plate is fixed with a reinforcing grid, the top of the reinforcing grid is fixed with a stiffening plate, and the top surface of the stiffening plate is fixed with a piston rod output shaft of the hydraulic piston.

Through adopting above-mentioned technical scheme, strengthen the bulk strength of moulded board, make moulded board be difficult for being out of shape because of extrusion leftover bits many times, extension moulded board's life.

Preferably, the heating element includes open-top's heating bath, intake pipe and outlet pipe, and the heating bath is installed the bottom of blowing pond, the heating bath with the bottom of blowing pond forms the heating chamber, the heating bath with the one end intercommunication of intake pipe, the other end of intake pipe is used for with high temperature steam equipment intercommunication, the heating bath with the outlet pipe intercommunication.

Through adopting above-mentioned technical scheme, in the hot steam lets in the cavity heating pond, make the heating chamber form high temperature space, the temperature is conducted to the blowing pond through heat transfer to the leftover bits in the heating blowing pond compare the electrical heating mode, steam heating avoids electrical apparatus direct and leftover bits direct contact, and the leftover bits of polyolefin foam and electrical apparatus contact have instability, therefore steam heating improves the production security that polyolefin foam leftover bits were retrieved.

Preferably, the bottom wall of the inner cavity of the heating pool is obliquely downwards arranged towards one side close to the water outlet pipe.

Through adopting above-mentioned technical scheme, hot steam meets cold liquefaction in the heating chamber, forms ponding, and the diapire that the slope set up downwards plays the drainage effect to ponding, and the rivers of the heating intracavity of being convenient for are to outlet pipe and discharge, reduce bacterial growing, improve the sanitary cleanliness of production.

Preferably, the support leg of the support is provided with a limiting part, the limiting part is provided with a chute extending along the vertical direction, a connecting part is connected between the limiting part and the stiffening plate and used for being clamped with the limiting part in the chute, and the connecting part is used for limiting the stiffening plate to move along the extending direction of the chute.

Through adopting above-mentioned technical scheme, the connecting piece is limited the stiffening plate and is removed along spout extending direction, and the spout extends along vertical direction, and the connecting piece makes stiffening plate and moulded board remove along vertical direction promptly to make moulded board when being driven by hydraulic piston, be difficult for producing the skew of horizontal direction, thereby the piston rod of protection hydraulic piston is difficult for warping, improves life.

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

1. when the leftover materials in the discharging pool are heated to a fixed temperature, the audible and visual prompter is started to remind a worker to stop heating in time and take out formed leftover materials, so that when the leftover materials of the polyolefin foam materials are recovered, the leftover material forming temperatures of different batches are controlled, the leftover material production variables of different batches are reduced, the production quality of different batches is unified, and the overall production quality of the recovery of the leftover materials of the polyolefin foam materials is improved;

2. the steam heating avoids the direct contact between the electrical appliance and the leftover materials, and the instability exists between the leftover materials of the polyolefin foam materials and the electrical appliance, so that the production safety of the leftover materials of the polyolefin foam materials is improved by the steam heating;

3. the connecting piece limits that the stiffening plate moves along the extending direction of the chute, and the chute extends along the vertical direction, namely the connecting piece enables the stiffening plate and the die pressing plate to move along the vertical direction, so that the die pressing plate is not easy to deviate in the horizontal direction when being driven by the hydraulic piston, the piston rod of the hydraulic piston is protected, the service life is prolonged.

Drawings

Fig. 1 is a schematic overall structure of an embodiment of the present utility model.

Fig. 2 is a schematic view of a part of the structure of an embodiment of the present utility model.

Fig. 3 is a schematic side view of a part of the structure of an embodiment of the present utility model.

Fig. 4 is an enlarged view of section a of fig. 1 in accordance with the present utility model.

Fig. 5 is a circuit diagram of a temperature detection circuit in an embodiment of the utility model.

Reference numerals illustrate:

1. a bracket; 2. a control cabinet; 3. a discharging pool; 4. a die pressing plate; 5. a heating assembly; 51. a heating pool; 52. an air inlet pipe; 53. a water outlet pipe; 6. stiffening plates; 61. a horizontal portion; 62. a vertical portion; 7. a hydraulic piston; 71. a cylinder body; 72. a piston rod; 8. a heating chamber; 9. a connecting piece; 10. a gear; 11. a limiting piece; 12. a chute; 13. tooth patterns; 14. a temperature sensor; 15. a temperature comparing unit; 16. a switching unit; 17. an acousto-optic prompter; 18. reinforcing the grille; 19. and a drive assembly.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-5.

The embodiment of the utility model discloses a foaming forming device for recycling polyolefin foam material scraps. Referring to fig. 1 and 2, a foaming forming device for recycling polyolefin foam leftover materials comprises a support 1, a discharging pool 3 for placing leftover materials, wherein the discharging pool 3 is arranged at the bottom of the support 1, a heating component 5 is arranged at the outer bottom of the discharging pool 3, the heating component 5 is used for heating the leftover materials placed in the discharging pool 3, the supporting legs of the support 1 are arranged at intervals along the circumferential direction of the discharging pool 3, in the embodiment, four supporting legs of the support 1 are respectively positioned at four corners of the discharging pool 3, and a control cabinet 2 is arranged on the support 1.

Referring to fig. 2 and 3, the top of the discharging pool 3 is provided with a molding plate 4, the peripheral wall of the molding plate 4 is abutted against the inner wall of the discharging pool 3, the top surface of the molding plate 4 is fixed with a reinforcing grid 18, the top of the reinforcing grid 18 is fixed with a stiffening plate 6, the stiffening plate 6 comprises a horizontal part 61 and two vertical parts 62, the two vertical parts 62 are respectively arranged on two opposite sides of the stiffening plate 6, two sides of the vertical part 62 are respectively fixed with the side edges of the molding plate 4 of the stiffening plate 6, and the vertical parts 62 and the horizontal parts 61 are integrally formed.

Referring to fig. 1 and 3, a driving assembly 19 for lifting the molding plate 4 is connected between the molding plate 4 and the top of the bracket 1, the driving assembly 19 includes two vertically arranged hydraulic pistons 7, cylinder bodies 71 of the two hydraulic pistons 7 are all fixed at the top of the bracket 1, and the output end of a piston rod 72 of the hydraulic piston 7 is fixed with the top surface of the stiffening plate 6.

Referring to fig. 2 and 3, the heating assembly 5 includes a heating tank 51 with an opening at the top, an air inlet pipe 52 and a water outlet pipe 53, the heating tank 51 is installed at the bottom of the discharging tank 3, the heating tank 51 and the bottom of the discharging tank 3 form a heating cavity 8, the heating tank 51 is communicated with one end of the air inlet pipe 52, the other end of the air inlet pipe 52 is communicated with high-temperature steam equipment, the hot steam is introduced into the hollow heating tank 51, the heating cavity 8 forms a high-temperature space, the temperature is conducted to the discharging tank 3 through heat transfer, thereby the leftover materials in the discharging tank 3 are heated, compared with an electric heating mode, the steam heating avoids direct contact between an electric appliance and the leftover materials, the heating tank 51 is communicated with the water outlet pipe 53, accumulated water is formed after the hot steam is liquefied in the heating cavity 8, and the accumulated water is discharged through the water outlet pipe 53.

Referring to fig. 3 and 4, four support legs of the bracket 1 are provided with limiting members 11, the limiting members 11 are provided with sliding grooves 12 extending along the vertical direction, the inner side walls of the sliding grooves 12 are convexly provided with dents 13, connecting members 9 are connected between the limiting members 11 and the stiffening plates 6, the connecting members 9 are used for being clamped with the limiting members 11 and connected with the sliding grooves 12 in a clamping manner, the connecting members 9 are used for limiting the stiffening plates 6 to move along the extending direction of the sliding grooves 12, in this embodiment, the connecting members 9 are two horizontal cross bars, the two cross bars are respectively fixed at two vertical parts 62 of the stiffening plates 6, two ends of the cross bars extend into the sliding grooves 12, the two ends of the cross bars are rotatably provided with gears 10, the gears 10 are meshed with the dents 13 in the sliding grooves 12, when the stamping plates 4 ascend or descend, the horizontal positions of the cross bars are limited, so that the horizontal displacement of the stiffening plates 6 and the stamping plates 4 is limited, when the stamping plates 4 are driven by the hydraulic pistons 7, the horizontal displacement of the hydraulic pistons 7 is not easy to occur, the piston rods 72 of the hydraulic pistons 7 are protected, and the service lives are prolonged.

Referring to fig. 3 and 5, the bracket 1 is further provided with an acousto-optic indicator 17 for reminding the temperature of the leftover materials in the discharging pool 3, in this embodiment, the acousto-optic indicator 17 is built in the control cabinet 2, the acousto-optic indicator 17 is coupled with a temperature detection circuit, and the temperature detection circuit is used for controlling the opening or closing of the acousto-optic indicator 17, and the temperature detection circuit comprises a temperature sensor 14, a temperature comparison unit 15 and a switch unit 16. In this embodiment, the temperature sensor 14 is an infrared thermometer, the temperature sensor 14 is embedded in the inner sidewall of the discharging pool 3, and the temperature sensor 14 is used for detecting the overall temperature of the leftover materials in the discharging pool 3 and sending out a temperature detection signal.

Referring to fig. 5, the temperature comparing unit 15 is coupled to the temperature sensor 14 and is provided with a threshold signal VREF to emit a temperature comparing signal when the temperature detecting signal is greater than the threshold signal; the temperature comparing unit 15 includes a comparator N1, a first signal input end of the comparator N1 is a positive input end, the positive input end is coupled to the temperature sensor 14 at the same time, a second signal input end of the comparator N1 is an inverting input end, the inverting input end is connected to the threshold signal VREF, and a signal output end of the comparator N1 is coupled to the switch unit 16.

Referring to fig. 5, the switch unit 16 is coupled to the temperature comparing unit 15 and is connected in series in the power supply circuit of the acousto-optic indicator 17, so that when the switch unit 16 receives the temperature comparing signal, the power supply circuit of the acousto-optic indicator 17 is turned on, the acousto-optic indicator 17 is started when receiving the start signal, and when not receiving the temperature comparing signal, the power supply circuit of the acousto-optic indicator 17 is disconnected, and when not receiving the temperature comparing signal, the acousto-optic indicator 17 is automatically turned off; the switch unit 16 includes a PNP-type triode Q1 and a relay KM1, where a base electrode of the triode Q1 is coupled to a signal output end of the comparator N1, an emitter electrode of the triode Q1 is coupled to a power supply voltage VCC, a collector electrode of the triode Q1 is connected in series with a coil of the relay KM1 and then grounded, the relay KM1 includes a normally open contact switch KM1-1, and the normally open contact switch KM1-1 is connected in series in a power supply loop of the audible and visual indicator 17.

The embodiment of the utility model relates to a foam molding device for recycling polyolefin foam material scraps, which comprises the following implementation principle: in the process of heating the leftover materials in the discharging pool 3 by the heating component 5, the sensor detects the whole temperature of the leftover materials in the discharging pool 3 in real time, when the temperature is higher than the value set by the temperature sensor 14, namely, the temperature required by the fusion of the leftover materials is reached, the temperature detection signal is larger than the threshold value signal VREF, the temperature comparison unit 15 sends a starting signal to the switch unit 16, the audible and visual indicator 17 is started, when the detected temperature is lower than the set value of the temperature sensor 14, the temperature detection signal is smaller than the threshold value signal VREF, the temperature comparison unit 15 does not send the temperature comparison signal, and the audible and visual indicator 17 is not started. Therefore, when the leftover materials in the discharging pool 3 are heated to a fixed temperature, the audible and visual prompter 17 is started to remind a worker to stop heating in time and take out the formed leftover materials, and when the leftover materials of the polyolefin foam materials are recovered, the leftover material forming temperatures of different batches are controlled, so that the leftover material production variables of different batches are reduced, the production quality of different batches is unified, and the overall production quality of the recovery of the leftover materials of the polyolefin foam materials is improved.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. The utility model provides a polyolefin foam is foaming forming device for leftover bits are retrieved, its characterized in that includes support (1) and is used for placing blowing pond (3) of leftover bits, the landing leg of support (1) is followed the circumference interval setting of blowing pond (3), switch board (2) are installed to support (1), the top of blowing pond (3) is provided with stamping plate (4), stamping plate (4) the perisporium with the inner wall butt of blowing pond (3), stamping plate (4) with be connected with between support (1) be used for the lift stamping plate (4) drive assembly (19), heating element (5) are installed to the outer bottom of blowing pond (3), heating element (5) are used for the heating place in leftover bits in blowing pond (3), support (1) are still installed and are used for being used for in blowing pond (3) leftover bits temperature's audible-visual indicator (17), audible-visual indicator (17) are coupled and are used for controlling temperature indicator (17) temperature sensing circuit (16), temperature sensor unit (15) are closed and are compared to temperature sensor unit (16), temperature sensor (15) are included.

The temperature sensor (14) is embedded in the inner side wall of the discharging pool (3), and the temperature sensor (14) is used for detecting the overall temperature of leftover materials in the discharging pool (3) and sending out a temperature detection signal;

the temperature comparison unit (15) is coupled to the temperature sensor (14) and is provided with a threshold signal VREF to emit a temperature comparison signal when the temperature detection signal is greater than the threshold signal VREF; when the temperature detection signal is smaller than the threshold signal VREF, a temperature comparison signal is not sent out;

the switch unit (16) is coupled to the temperature comparing unit (15) and is connected in series in a power supply loop of the acousto-optic indicator (17) so as to be used for conducting the power supply loop of the acousto-optic indicator (17) when a temperature comparing signal is received, the acousto-optic indicator (17) is started when a starting signal is received, and the power supply loop of the acousto-optic indicator (17) is disconnected when the temperature comparing signal is not received, and the acousto-optic indicator (17) is automatically closed when the temperature comparing signal is not received.

2. The foam molding device for recycling polyolefin foam material scraps according to claim 1, wherein the temperature comparing unit (15) comprises a comparator N1, a first signal input end of the comparator N1 is coupled to the temperature sensor (14), a second signal input end of the comparator N1 is connected to the threshold signal VREF, and a signal output end of the comparator N1 is coupled to the switch unit (16).

3. The foam molding device for recycling polyolefin foam material scraps according to claim 2, wherein the switch unit (16) comprises a triode Q1, a base electrode of the triode Q1 is coupled to a signal output end of the comparator N1, an emitter electrode of the triode Q1 is coupled to a power supply voltage VCC, and a collector electrode of the triode Q1 is grounded.

4. A foam molding device for recycling polyolefin foam material scraps according to claim 3, wherein the switch unit (16) further comprises a relay KM1, the coil of the relay KM1 is connected with the collector of the triode Q1 in series and then grounded, the relay KM1 comprises a normally open contact switch KM1-1, and the normally open contact switch KM1-1 is connected in series in a power supply loop.

5. The foam molding device for recycling polyolefin foam material scraps according to claim 1, wherein the driving assembly (19) comprises a plurality of vertically arranged hydraulic pistons (7), cylinder bodies (71) of the hydraulic pistons (7) are all fixed on the support (1), and the output end of a piston rod (72) of each hydraulic piston (7) is connected with the top surface of the molding plate (4).

6. The foam molding device for recycling polyolefin foam material scraps according to claim 5, wherein a reinforcing grid (18) is fixed on the top surface of the molding plate (4), a stiffening plate (6) is fixed on the top of the reinforcing grid (18), and the top surface of the stiffening plate (6) is fixed with the output shaft of a piston rod (72) of the hydraulic piston (7).

7. The foam molding device for recycling polyolefin foam material scraps according to claim 1, wherein the heating assembly (5) comprises a heating tank (51) with an opening at the top, an air inlet pipe (52) and a water outlet pipe (53), the heating tank (51) is arranged at the bottom of the discharging tank (3), a heating cavity (8) is formed at the bottoms of the heating tank (51) and the discharging tank (3), the heating tank (51) is communicated with one end of the air inlet pipe (52), the other end of the air inlet pipe (52) is communicated with high-temperature steam equipment, and the heating tank (51) is communicated with the water outlet pipe (53).

8. The foam molding device for recycling polyolefin foam material scraps according to claim 6, wherein the support leg of the bracket (1) is provided with a limiting piece (11), the limiting piece (11) is provided with a chute (12) extending along the vertical direction, a connecting piece (9) is connected between the limiting piece (11) and the stiffening plate (6), the connecting piece (9) is used for being clamped with the limiting piece (11) in the chute (12), and the connecting piece (9) is used for limiting the stiffening plate (6) to move along the extending direction of the chute (12).