Energy recovery method for injection-blow hollow forming machine

Abstract

The invention relates to the technical field of injection-blowing hollow forming machines, in particular to an injection-blowing hollow forming machine energy recovery method which comprises the following steps: S1, heat energy recovery: receiving machine heat energy from an opening and closing mold, an injection table and a machine barrel through a heat energy recovery device, and collecting and integrating the dispersed heat energy; heat energy input by the heat energy recovery device is converted into electric energy through thermoelectric conversion equipment, secondary utilization of the energy is achieved, sealing shells are arranged on the upper surfaces of the opening and closing mold, the injection table and the machine barrel, and the heat energy recovery device is arranged on the inner walls of the sealing shells. According to the energy recovery method for the injection-blowing hollow forming machine, effective heat preservation and isolation are achieved through the sealing shell, loss of heat in equipment to the outside is reduced, heat energy of the opening and closing mold, the injection table and the machine barrel can be recovered and converted into electric energy in cooperation with the heat energy recovery device and the thermoelectric conversion equipment, energy waste is remarkably reduced, and the production cost is saved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of injection blow molding machines, in particular to an energy recovery method of an injection blow molding machine. BACKGROUND

[0002] In the production process of the injection blow molding machine, a large amount of heat energy is generated at the mold opening and closing space, the shooting table, the machine barrel, the electric box and the hot runner of the device. The traditional device lacks an effective heat energy recycling mechanism. These heat is either directly dissipated into the surrounding environment, causing the temperature of the production workshop to rise, and additional air conditioning and refrigeration equipment are needed to control the environment, increasing energy consumption and production costs; or the temperature fluctuation affects the stability of the device operation and the product quality, for example, unstable shooting table temperature will cause the temperature of the discharge port to fluctuate, thereby affecting the molding effect of the product. At the same time, the sealing performance of the device shell is insufficient, and the heat loss is serious, which not only reduces the feasibility of heat energy recovery, but also aggravates the problem of energy waste.

[0003] Therefore, how to effectively recycle the waste heat of the injection blow molding machine, and at the same time improve the sealing performance of the device to ensure the heat energy recovery efficiency and the stability of the device operation, has become a technical problem to be solved in the field.

[0004] Therefore, the present application provides an energy recovery method of an injection blow molding machine. SUMMARY

[0005] The purpose of the present application is to solve at least one technical problem raised in the background art.

[0006] The present application provides an energy recovery method of an injection blow molding machine, comprising the following steps: S1, heat energy recovery: receiving machine heat energy from the mold opening and closing, the shooting table and the machine barrel through a heat energy recovery device, and collecting and integrating these dispersed heat energy; S2, thermoelectric conversion: converting the heat energy input by the heat energy recovery device into electric energy through a thermoelectric conversion device to realize secondary utilization of energy.

[0007] The upper surfaces of the mold opening and closing, the shooting table and the machine barrel are provided with a sealing shell, and the heat energy recovery device is arranged on the inner wall of the sealing shell; The inside of the sealing shell is provided with a temperature sensor, the temperature sensor in the mold opening and closing space is used to monitor the temperature of the mold opening and closing space, and when the actual temperature exceeds the set temperature, the power of the recovery device is increased, and the temperature sensor in the shooting table space is used to control the heat around the screw and the heating ring to maintain the temperature of the discharge port.

[0008] By adopting the technical scheme, heat energy of multiple parts of the injection blow hollow forming machine, such as the mold opening and closing space, the shooting table and the cylinder, is effectively recycled, is converted into electric energy by the thermoelectric conversion equipment, energy waste is significantly reduced, and production cost is saved.

[0009] Preferably, the sealing shell retains necessary doors, and a small D-shaped hollow sealing strip is used for sealing at the doors.

[0010] Preferably, the heat energy recycling device comprises heat pipes, a phase change material layer and a heat conduction plate, the heat pipes are uniformly distributed on inner walls of the sealing shells of the mold opening and closing space, the shooting table and the cylinder to absorb and conduct heat, the phase change material layer is filled in gaps between the heat pipes to store fluctuating heat, and the heat conduction plate is installed on the inner walls of the sealing shells of the mold opening and closing space, the shooting table and the cylinder.

[0011] Preferably, the thermoelectric conversion equipment adopts a thermoelectric generation module, and a working temperature range of the thermoelectric generation module is 80-300 DEG C, which is matched with a typical heat source temperature of the injection blow forming machine.

[0012] By adopting the technical scheme, the sealing shell effectively insulates and reduces heat loss of the equipment to the outside, improves heat energy recycling efficiency, and through physical contact of the heat energy recycling device, radiation heat and convection heat generated during equipment operation are absorbed, and heat collected in each region is conducted to the thermoelectric conversion equipment.

[0013] Preferably, an outer surface of the sealing shell on the mold opening and closing space is provided with a discharging mechanism, the discharging mechanism comprises a discharging port formed in the outer surface of the sealing shell, an extension cover fixedly installed on an inner wall of the discharging port, a heat preservation plate used for covering a left end of the extension cover and pivotally connected to a surface of the extension cover through a hinge, and a conveying component arranged in the extension cover and used for conveying finished products.

[0014] By adopting the technical scheme, through cooperation of the extension cover and the heat preservation plate, heat of the equipment can be prevented from being diffused to the outside from the discharging port.

[0015] Preferably, the conveying component comprises a mounting groove and a track groove formed in a bottom wall of the extension cover, a guide seat slidingly fitted on an inner wall of the track groove, a receiving table pivotally connected to an upper surface of the guide seat through a rotating shaft, and first and second synchronous wheels pivotally connected to the inner wall of the mounting groove, the first and second synchronous wheels are drivingly connected through a synchronous belt, a lower end of the guide seat is fixedly connected to a surface of the synchronous belt, a guide rod is fixedly installed on the inner wall of the track groove, a guide block is slidingly fitted on a surface of the guide rod, an upper surface of the guide block is fixedly connected to a lower surface of the guide seat, a magnetic plate is fixedly installed on a right side surface of the receiving table, and one end of the magnetic plate is adsorbed to the right side surface of the guide seat.

[0016] Preferably, L-shaped push rods are fixedly installed on the upper surface of the guide seat and used for pushing the heat preservation plate to rotate.

[0017] By adopting the technical scheme, when the synchronous belt rotates, the guide seat moves along the track of the guide rod, when the guide seat moves to the mold opening and closing demolding mechanism position, the demolding mechanism can put the finished product after demolding on the material receiving table, when the guide seat moves to the left, the L-shaped push rod pushes the heat preservation plate to rotate, so that the finished product material can be transported to the outside, when the L-shaped push rod is separated from the heat preservation plate, the heat preservation plate rotates to close the extension cover.

[0018] Preferably, the front surface of the extension cover is provided with a driving component for driving the second synchronous wheel to rotate, the driving component comprises a first pulley and a second pulley which are respectively rotatably connected to the front surface of the extension cover, the shaft end of the second pulley is fixedly connected with the shaft end of the second synchronous wheel, the front surface of the extension cover is fixedly installed with a motor for driving the first pulley to rotate, and the first pulley and the second pulley are connected through a belt transmission.

[0019] By adopting the technical scheme, the driving motor can drive the first pulley to rotate, the belt transmission can drive the second pulley to rotate, when the second pulley rotates, it drives the second synchronous wheel to rotate, so that the synchronous belt can be driven to rotate and drive the guide seat to move, and the motor can be reversely rotated to drive the guide seat to move left and right along the surface of the guide rod.

[0020] Preferably, the inside of the extension cover is provided with a turnover component for driving the material receiving table to turn over, the turnover component comprises guide plates fixedly installed on the two inner side walls of the extension cover, a first transverse guide groove, an inclined groove and a second guide groove are opened on the surface of the guide plate, the both ends of the rotating shaft are fixedly installed with turning plates, and one end of the turning plate is rotatably connected with a roller which is in rolling connection with the first transverse guide groove, the inclined groove and the second guide groove.

[0021] By adopting the technical scheme, when the guide seat moves, the roller rolls in the inner wall of the first transverse guide groove, the inclined groove and the second guide groove, when the roller rolls in the first transverse guide groove, the material receiving table does not rotate, when the roller moves to the inclined groove, the turning plate is driven to rotate, so that the material receiving table can be driven to rotate, and the finished product material on the material receiving table can be driven to separate from the material receiving table.

[0022] Preferably, the inner bottom wall of the extension cover is fixedly installed with a protection plate, the surface of the protection plate is respectively provided with a avoiding groove for the guide seat and the guide block to pass through, and the left end of the protection plate is fixedly installed with an inclined guide plate.

[0023] By adopting the technical scheme, the protection plate can avoid the finished product material from contacting with the synchronous belt when the finished product material separates from the material receiving table, and when the material on the material receiving table separates from the material receiving table, the inclined guide plate can guide the material to separate from the extension cover.

[0024] In summary, the present application has at least one of the following beneficial technical effects: 1. The energy recovery method of the injection blow hollow forming machine, the heat loss of the equipment is reduced by the effective heat insulation of the sealing shell, the machine heat of the opening and closing mold, the shooting table and the machine barrel is recovered and converted into electric energy by the heat recovery device and the thermoelectric conversion equipment, the energy waste is significantly reduced, and the production cost is saved.

[0025] 2. The energy recovery method of the injection blow hollow forming machine, the heat generated by the machine is prevented from being discharged in large quantities from the discharge port by the cooperation of the extension cover and the heat preservation plate, the first belt pulley is driven to rotate by the driving motor, the second belt pulley is driven to rotate by the transmission of the belt, the second synchronous wheel is driven to rotate when the second belt pulley rotates, so as to drive the synchronous belt to rotate and drive the guide seat to move, the guide seat is moved left and right along the surface of the guide rod by the forward and reverse rotation of the motor, the material receiving table is moved to the position of the opening and closing mold demolding mechanism to receive the material, and the material receiving table is moved to the left side to open the heat preservation plate of the extension cover to unload the material.

[0026] 3. The energy recovery method of the injection blow hollow forming machine, the roller is guided by the first transverse guide groove, the slope groove and the second guide groove when the guide seat moves, the roller rolls in the first transverse guide groove when the guide seat moves to the left side, the material receiving table is in a horizontal state at this time, the magnetic attraction plate is separated from the guide seat by overcoming the magnetic force when the roller moves into the slope groove, the rotation of the rotating shaft is triggered, so as to drive the material receiving table to overturn to unload the material, the unloaded material falls on the slope guide plate, and the material is guided to separate from the extension cover along the slope guide plate, the roller passes through the second guide groove when the guide seat moves to the right side, so as to drive the material receiving table to reset to the horizontal state, at this time, the magnetic attraction plate is attracted to the right side of the guide seat, so as to ensure the stability of the material receiving table. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a flowchart of the embodiment of the application; Figure 2 is a schematic diagram of the overall structure of the embodiment of the application; Figure 3 is a schematic diagram of the front view structure of the embodiment of the application; Figure 4 is a schematic diagram of the three-dimensional structure of the discharge mechanism of the embodiment of the application; Figure 5 is a schematic diagram of the front view structure of the discharge mechanism of the embodiment of the application; Figure 6 is a schematic diagram of the three-dimensional structure of the overturning part of the embodiment of the application; Figure 7 is a schematic diagram of the three-dimensional structure of the material receiving table of the embodiment of the application; Figure 8is a side view of the discharging mechanism of the application; Figure 9 is Figure 5 is an enlarged structural schematic view at A in the above figure.

[0028] Reference signs: 100, heat energy recovery device; 200, mold opening and closing; 300, injection table; 400, barrel; 500, thermoelectric conversion equipment; 600, sealed housing; 700, discharging mechanism; 701, extension cover; 702, heat preservation plate; 703, guide seat; 704, material receiving table; 705, first synchronous wheel; 706, second synchronous wheel; 707, synchronous belt; 708, guide rod; 709, guide block; 710, magnetic attraction plate; 711, first pulley; 712, second pulley; 713, motor; 714, belt; 715, L-shaped push rod; 716, protective plate; 717, material guide plate; 718, rotating shaft; 800, turnover part; 801, guide plate; 802, first transverse guide groove; 803, inclined groove; 804, second guide groove; 805, turning plate; 806, roller. DETAILED DESCRIPTION

[0029] The application will be further described below. Figures 1 to 9 The application will be further described below.

[0030] Embodiment one Please refer to Figures 1 to 3 A method for energy recovery of injection blow hollow forming machine, comprising the following steps: S1, heat energy recovery: receiving machine heat energy from mold opening and closing 200, injection table 300 and barrel 400 through heat energy recovery device 100, collecting and integrating these dispersed heat energy; S2, thermoelectric conversion: converting the heat energy input by heat energy recovery device 100 into electric energy through thermoelectric conversion equipment 500, realizing secondary utilization of energy.

[0031] The upper surfaces of mold opening and closing 200, injection table 300 and barrel 400 are provided with sealed housing 600, and heat energy recovery device 100 is arranged on the inner wall of sealed housing 600; The inside of sealed housing 600 is provided with temperature sensors, the temperature sensor in the space of mold opening and closing 200 is used for monitoring the temperature of the space of mold opening and closing 200, when the actual temperature exceeds the set temperature, the power of the recovery device is increased, and the temperature sensor in the space of injection table 300 is used for controlling the heat around the screw and heating coil, maintaining the temperature of the discharge port.

[0032] Specifically, the sealing shell 600 cooperates with the thermoelectric conversion device 500 to effectively recover the heat energy of the injection blow molding machine opening and closing mold 200 space, shooting table 300, machine barrel 400, electric box and hot runner, etc. The heat energy is converted into electric energy by the thermoelectric conversion device 500, which significantly reduces energy waste and saves production cost.

[0033] Please refer to Figure 1 and Figure 3 , the sealing shell 600 retains the necessary door, and the door is sealed with a small D-shaped hollow sealing strip. The heat recovery device 100 includes heat pipes, phase change material layers, and heat conduction plates. The heat pipes are evenly distributed on the inner wall of the sealing shell 600 of the opening and closing mold 200, the shooting table 300 and the machine barrel 400 to absorb and conduct heat. The phase change material layer is filled in the gap between the heat pipes for storing fluctuating heat. The heat conduction plate is installed on the inner wall of the sealing shell 600 of the opening and closing mold 200, the shooting table 300 and the machine barrel 400. The thermoelectric conversion device 500 uses a thermoelectric generator module with a working temperature range of 80-300℃, which matches the typical heat source temperature of the injection blow molding machine.

[0034] Specifically, the sealing shell 600 effectively insulates and reduces the loss of internal heat to the outside, improving the efficiency of heat recovery. The heat recovery device 100 physically contacts and absorbs the radiant heat and convective heat generated during equipment operation, and conducts the heat collected in each area to the thermoelectric conversion device 500.

[0035] The working principle of the embodiment is as follows: a closed heat recovery environment is constructed by the sealing shell 600 to inhibit heat loss. The heat pipe array directly contacts the surface of the equipment, and the temperature sensor monitors the temperature of the opening and closing mold 200 space, the shooting table 300 area and the machine barrel 400 section in real time. When the temperature of the opening and closing mold 200 is greater than the set threshold, the heat pipe heat conduction rate is automatically increased, the sensor of the shooting table 300 area is linked to the heating ring to maintain the temperature stability of the discharge port. The heat recovery device 100 and the thermoelectric conversion device 500 can recover and convert the machine heat energy of the opening and closing mold 200, the shooting table 300 and the machine barrel 400 into electric energy, which significantly reduces energy waste and saves production cost.

[0036] Example two Compared with example one, another embodiment of the present application is as follows: Please refer to Figure 2 and Figures 4 to 5 , the outer surface of the sealing shell 600 on the opening and closing mold 200 is provided with a discharge mechanism 700. The discharge mechanism 700 includes a discharge port formed on the surface of the sealing shell 600, an extension cover 701 fixedly installed on the inner wall of the discharge port, a heat preservation plate 702 rotatably fitted on the surface of the extension cover 701 for covering the left end of the extension cover 701, and a material conveying component arranged in the extension cover 701 for conveying finished products.

[0037] Specifically, by the cooperation of the extension cover 701 and the heat preservation plate 702, the heat of the equipment can be prevented from diffusing to the outside in large quantities from the discharge port.

[0038] Please refer to Figures 4 to 9 The feeding component includes a mounting groove and a track groove formed in the bottom wall of the extension cover 701, a guide seat 703 slidingly fitted in the inner wall of the track groove, a receiving table 704 rotationally fitted on the upper surface of the guide seat 703 through a rotating shaft 718, a first synchronous wheel 705 and a second synchronous wheel 706 rotationally fitted on the inner wall of the mounting groove, the first synchronous wheel 705 and the second synchronous wheel 706 being drivingly connected through a synchronous belt 707, the lower end of the guide seat 703 being fixedly connected to the surface of the synchronous belt 707, a guide rod 708 being fixedly installed on the inner wall of the track groove, a guide block 709 slidingly fitted on the surface of the guide rod 708, the upper surface of the guide block 709 being fixedly connected to the lower surface of the guide seat 703, a magnetic plate 710 being fixedly installed on the right side surface of the receiving table 704, one end of the magnetic plate 710 being adsorbed to the right side surface of the guide seat 703, and L-shaped push rods 715 being fixedly installed on the upper surface of the guide seat 703 in a symmetrical manner and used for pushing the heat preservation plate 702 to rotate.

[0039] Specifically, when the synchronous belt 707 rotates, the guide seat 703 will move along the track of the guide rod 708, when the guide seat 703 moves to the position of the demolding mechanism of the mold opening and closing device 200, the demolding mechanism can put the finished product after demolding on the receiving table 704, when the guide seat 703 moves to the left side, the L-shaped push rod 715 will push the heat preservation plate 702 to rotate, so that the finished product can be transported to the outside, when the L-shaped push rod 715 is separated from the heat preservation plate 702, the heat preservation plate 702 will rotate to close the extension cover 701.

[0040] Please refer to Figure 4 and Figure 5 The front surface of the extension cover 701 is provided with a driving component used for driving the second synchronous wheel 706 to rotate, the driving component includes first and second belt pulleys 711 and 712 rotationally fitted on the front surface of the extension cover 701, the shaft end of the second belt pulley 712 being fixedly connected to the shaft end of the second synchronous wheel 706, the front surface of the extension cover 701 being fixedly installed with a motor 713 used for driving the first belt pulley 711 to rotate, and the first and second belt pulleys 711 and 712 being drivingly connected through a belt 714.

[0041] Specifically, the driving motor 713 can drive the first belt pulley 711 to rotate, the second belt pulley 712 can be driven to rotate through the transmission of the belt 714, the second synchronous wheel 706 can be driven to rotate after the second belt pulley 712 rotates, so that the synchronous belt 707 can be driven to rotate to drive the guide seat 703 to move, and the guide seat 703 can be driven to move left and right along the surface of the guide rod 708 through the forward and reverse rotation of the motor 713.

[0042] Please refer to Figures 5 to 8 The inner part of the extension cover 701 is provided with a turnover component 800 for driving the turnover of the receiving table 704. The turnover component 800 comprises a guide plate 801 fixedly installed on the two inner side walls of the extension cover 701, a first transverse guide groove 802, an inclined groove 803 and a second guide groove 804 are opened on the surface of the guide plate 801, the two ends of the rotating shaft 718 are fixedly installed with a steering plate 805, one end of the steering plate 805 is rotatably connected with a roller 806 which is in rolling connection with the first transverse guide groove 802, the inclined groove 803 and the second guide groove 804, the inner bottom wall of the extension cover 701 is fixedly installed with a protection plate 716, the surface of the protection plate 716 is respectively provided with a relief groove for the passing of the guide seat 703 and the guide block 709, and the left end of the protection plate 716 is fixedly installed with an inclined guide plate 717.

[0043] Specifically, when the guide seat 703 moves, the roller 806 rolls on the inner wall of the first transverse guide groove 802, the inclined groove 803 and the second guide groove 804. When the roller 806 rolls in the first transverse guide groove 802, the receiving table 704 does not rotate. When the roller 806 moves into the inclined groove 803, the steering plate 805 rotates, thereby driving the receiving table 704 to rotate, and the finished product material on the receiving table 704 is driven to separate from the receiving table 704. The protection plate 716 can prevent the finished product material from contacting the synchronous belt 707 when it separates from the receiving table 704. When the material on the receiving table 704 separates from the receiving table 704, the inclined guide plate 717 guides the material to separate from the extension cover 701.

[0044] The working principle of the embodiment is that the extension cover 701 and the heat preservation plate 702 constitute a closed discharge channel, and the dynamic opening and closing is realized through the hinge to reduce heat loss. The driving motor 713 rotates in the forward direction to drive the first belt pulley 711 to rotate. The transmission of the belt 714 can drive the second belt pulley 712 to rotate. When the second belt pulley 712 rotates, it drives the second synchronous wheel 706 to rotate, so that the synchronous belt 707 can be driven to rotate. The power is transmitted through the synchronous belt 707 to drive the guide seat 703 to realize precise displacement along the guide rod 708. At this time, the receiving table 704 is synchronously moved to the demolding station. The demolding mechanism can place the demolded finished material on the receiving table 704. Then the driving motor 713 reverses, and the power is transmitted through the synchronous belt 707 to drive the guide seat 703 to move along the guide rod 708. At this time, the receiving table 704 moves to the left. When the guide seat 703 moves to the left, the L-shaped push rod 715 pushes open the heat preservation plate 702 to form a discharge channel. At this time, the roller 806 will roll on the inner wall of the first transverse guide groove 802, the inclined groove 803 and the second guide groove 804. When the roller 806 rolls in the first transverse guide groove 802, the receiving table 704 is in a horizontal state. When the roller 806 moves into the inclined groove 803, the magnetic attraction plate 710 will be separated from the guide seat 703 against the magnetic force, which can trigger the rotation of the rotating shaft 718, so that the receiving table 704 can be flipped for unloading. The unloaded material will fall onto the inclined guide plate 717 and be guided to separate from the extension cover 701. Then the motor 713 rotates in the forward direction to drive the receiving table 704 to move to the right to the demolding mechanism position. During the movement of the receiving table 704, the L-shaped push rod 715 will be separated from the heat preservation plate 702. After the heat preservation plate 702 is separated from the support of the L-shaped push rod 715, it is reset to close the discharge channel of the extension cover 701. At the same time, the roller 806 passes through the second guide groove 804 to drive the receiving table 704 to reset to the horizontal state. At this time, the magnetic attraction plate 710 will be attracted to the right side of the guide seat 703 to ensure the stability of the receiving table 704.

[0045] Operation steps: After the equipment is started, the heat pipe array on the heat energy recovery device 100 directly contacts the surface of the equipment to absorb and conduct heat. The phase change material layer automatically fills the gap between the heat pipes and stores temperature fluctuation heat. When the temperature sensor detects that the actual temperature is greater than the set threshold, the heat pipe heat conduction rate is automatically increased. The sensor in the shooting area 300 dynamically adjusts the power of the heating ring to maintain the temperature of the discharge port. At this time, the heat conduction plate can concentrate the collected heat to the thermoelectric conversion device 500. The electric energy converted by the thermoelectric conversion device 500 is integrated into the equipment power supply system. When unloading, first drive the motor 713 in the forward direction to drive the synchronous belt 707 to rotate. At this time, the guide seat 703 can be driven to move to the right along the guide rod 708, and the receiving table 704 can be horizontally displaced below the demolding mechanism for receiving. At this time, the heat preservation plate 702 is in a closed state. When the receiving is finished, the motor 713 reverses to drive the guide seat 703 to move left along the guide rod 708. The left movement of the guide seat 703 drives the L-shaped push rod 715 to push open the heat preservation plate 702. At the same time, the roller 806 first rolls in the first transverse guide groove 802, and the receiving table 704 remains horizontal. When the guide seat 703 moves left to the position of the inclined groove 803, the roller 806 triggers the rotation of the turning plate 805, the receiving table 704 is flipped to unload, and the magnetic plate 710 is separated from the guide seat 703. The finished product slides to the inclined guide plate 717. After unloading, the motor 713 rotates to drive the receiving table 704 to reset to the position below the demolding mechanism. At the same time, the roller 806 makes the receiving table 704 reset to horizontal through the second guide groove 804. The magnetic plate 710 re-adsorbs the guide seat 703, and the heat preservation plate 702 is automatically closed under the action of the hinge.

Claims

1. A method for energy recovery in an injection blow molding machine, characterized in that, Includes the following steps: S1, Heat recovery: The heat recovery device (100) receives machine heat energy from the mold opening and closing (200), the injection stage (300), and the barrel (400), and collects and integrates these dispersed heat energies; S2, thermoelectric conversion: The heat energy input from the heat recovery device (100) is converted into electrical energy through the thermoelectric conversion equipment (500) to realize the secondary utilization of energy; The upper surfaces of the opening and closing mold (200), the injection stage (300) and the barrel (400) are all provided with a sealed outer shell (600), and the heat recovery device (100) is provided on the inner wall of the sealed outer shell (600); A temperature sensor is installed inside the sealed housing (600). The temperature sensor in the mold opening and closing space (200) is used to monitor the temperature of the mold opening and closing space (200). When the actual temperature exceeds the set temperature, the power of the recovery device is increased. The temperature sensor in the injection stage (300) space is used to control the heat around the screw and heating coil to maintain the temperature of the discharge port.

2. The energy recovery method for an injection blow molding machine according to claim 1, characterized in that, The sealed housing (600) retains the necessary door, which is sealed with a small D-shaped hollow sealing strip.

3. The energy recovery method for an injection blow molding machine according to claim 1, characterized in that, The heat recovery device (100) includes: heat pipes, a phase change material layer and a heat-conducting plate. The heat pipe array is evenly distributed on the inner wall of the sealed outer shell (600) of the opening and closing mold (200), the injection stage (300) and the barrel (400) to absorb and conduct heat. The phase change material layer fills the gaps between the heat pipes to store fluctuating heat. The heat-conducting plate is installed on the inner wall of the sealed outer shell of the opening and closing mold (200), the injection stage (300) and the barrel (400).

4. The energy recovery method for an injection blow molding machine according to claim 1, characterized in that, The thermoelectric conversion device (500) adopts a thermoelectric power generation module with an operating temperature range of 80-300℃, which matches the typical heat source temperature of the injection blow molding machine.

5. The energy recovery method for an injection blow molding machine according to claim 1, characterized in that, A discharge mechanism (700) is provided on the outer surface of the sealing shell (600) on the opening and closing mold (200). The discharge mechanism (700) includes a discharge port opened on the surface of the sealing shell (600), an extension cover (701) fixedly installed on the inner wall of the discharge port, a heat preservation plate (702) that is hinged to rotate and fit on the surface of the extension cover (701) to cover the left end of the extension cover (701), and a conveying component provided inside the extension cover (701) for conveying the finished product.

6. The energy recovery method for an injection blow molding machine according to claim 5, characterized in that, The material conveying component includes an installation groove and a track groove formed in the bottom wall of the extension cover (701), a guide seat (703) slidably fitted in the inner wall of the track groove, and a receiving platform (704) rotatably fitted in the upper surface of the guide seat (703) via a rotating shaft (718). The inner wall of the installation groove is respectively rotatably fitted with a first synchronous wheel (705) and a second synchronous wheel (706). The first synchronous wheel (705) and the second synchronous wheel (706) are connected by a synchronous belt (707). The lower end of the guide seat (703) is fixedly connected to the surface of the synchronous belt (707). A guide rod (708) is fixedly installed in the inner wall of the track groove. A guide block (709) is slidably fitted in the surface of the guide rod (708). The upper surface of the guide block (709) is fixedly connected to the lower surface of the guide seat (703). A magnetic suction plate (710) is fixedly installed on the right side of the receiving platform (704). One end of the magnetic suction plate (710) is attracted to the right side of the guide seat (703).

7. The energy recovery method for an injection blow molding machine according to claim 6, characterized in that, The front of the extension cover (701) is provided with a drive component for driving the second synchronous pulley (706) to rotate. The drive component includes a first pulley (711) and a second pulley (712) that are rotatably fitted on the front of the extension cover (701). The shaft end of the second pulley (712) is fixedly connected to the shaft end of the second synchronous pulley (706). A motor (713) for driving the first pulley (711) to rotate is fixedly installed on the front of the extension cover (701). The first pulley (711) and the second pulley (712) are connected by a belt (714).

8. The energy recovery method for an injection blow molding machine according to claim 6, characterized in that, The interior of the extension cover (701) is provided with a flipping component (800) for driving the receiving table (704) to flip. The flipping component (800) includes a guide plate (801) fixedly installed on the two inner side walls of the extension cover (701), a first transverse guide groove (802), a ramp groove (803) and a second guide groove (804) opened on the surface of the guide plate (801). Both ends of the rotating shaft (718) are fixedly installed with a steering plate (805). One end of the steering plate (805) is rotatably engaged with a roller (806) that rolls with the first transverse guide groove (802), the ramp groove (803) and the second guide groove (804).

9. The energy recovery method for an injection blow molding machine according to claim 6, characterized in that, The upper surface of the guide seat (703) is symmetrically fixed with L-shaped push rods (715) for pushing the insulation board (702) to rotate.

10. The energy recovery method for an injection blow molding machine according to claim 9, characterized in that, The inner bottom wall of the extension cover (701) is fixedly installed with a protective plate (716). The surface of the protective plate (716) is provided with clearance grooves for the guide seat (703) and the guide block (709) to pass through. The left end of the protective plate (716) is fixedly installed with a ramp guide plate (717).

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