Injection molding production complete assembly line

Abstract

The application discloses a matched assembly line for injection molding, which comprises an injection molding assembly and a conveying belt, and the conveying belt is located at the output end of the injection molding assembly, and further comprises: a driving seat connected to the inner walls of the two sides of the conveying belt and used for driving the conveying belt to move; a temperature control mechanism arranged on the outer periphery of the conveying belt; a cooling mechanism arranged in the driving seat and located in the middle of the conveying belt; and a monitoring mechanism installed in the temperature control mechanism; the temperature control mechanism comprises: a protective cover surrounding the outer periphery of the conveying belt; a plurality of porous ceramic frames equidistantly inlaid in the inner walls of the multiple sides of the protective cover and located in the front half of the protective cover; a fan support one inlaid in the top inner wall of the protective cover, and a plurality of air guide fans one are equidistantly installed on the fan support one, and the output faces of the plurality of air guide fans one are arranged towards the inside of the protective cover; and an installation plate one, and the matched assembly line for injection molding has the effects of effectively eliminating the quenching internal stress of the injection molding part after being discharged from a mold and significantly reducing warping deformation.

Description

Technical Field

[0001] This invention relates to the field of injection molding production technology, and in particular to a supporting production line for injection molding. Background Technology

[0002] In the injection molding process, after the molded part has been shaped in the mold, it is usually removed by a robot and placed on a conveyor belt for subsequent cooling, inspection, and packaging. However, existing conveyor lines generally lack precise control over the cooling process. Specifically, the molded part still has a relatively high residual temperature (typically 50°C to 80°C) when it is removed from the mold. If it is directly exposed to room temperature air, its surface will cool down rapidly due to contact with the cold air, while the interior will remain at a higher temperature.

[0003] This temperature difference between the inside and outside of the molded part leads to uneven thermal shrinkage, resulting in significant residual internal stress within the molded part. The direct consequence of this internal stress is warping, shrinkage marks, or dimensional deviations after the molded part cools to room temperature. This problem is particularly pronounced for thick-walled parts, sleeve-type parts with center holes, and crystalline plastic products. Summary of the Invention

[0004] This invention discloses a supporting production line for injection molding, which aims to solve the technical problems of warping, shrinkage marks or dimensional deviations in injection molded parts after cooling to room temperature.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A production line for injection molding includes an injection molding assembly and a conveyor belt, with the conveyor belt located at the output end of the injection molding assembly. It further includes: a drive unit connected to the inner walls of both sides of the conveyor belt for driving its movement; a temperature control mechanism disposed on the outer periphery of the conveyor belt; a cooling mechanism disposed within the drive unit, located in the middle of the conveyor belt; and a monitoring mechanism installed within the temperature control mechanism. The temperature control mechanism includes: a protective cover surrounding the outer periphery of the conveyor belt; multiple porous ceramic frames equidistantly embedded in the inner walls of the protective cover on multiple sides, located in the front half of the protective cover; and a fan. A bracket is embedded in the inner top wall of the protective cover, and multiple guide fans are installed at equal intervals on the fan bracket, with the output surfaces of the multiple guide fans facing inwards from the protective cover; a mounting plate is fixedly connected to the inner top wall of the protective cover and located on one side of the fan bracket, with multiple flexible heat insulation sheets fixedly connected to the bottom of the mounting plate; two hot air blowers are fixedly connected to the outer walls of the two sides of the protective cover, and the output end of each hot air blower is fixedly connected to multiple air distribution pipes through a main air distribution pipe, with the output ends of the multiple air distribution pipes passing through one side of the protective cover simultaneously; The inner wall of the protective cover is provided with multiple mounting slots at equal intervals, and multiple porous ceramic frames are fixedly embedded in the multiple mounting slots respectively. The top inner wall of the protective cover is provided with a ventilation slot, and a fan bracket is fixedly installed in the ventilation slot.

[0006] Equipped with a temperature control mechanism, the upward exhaust of the guide fan creates an orderly horizontal flow and vertical suction of hot air in the front half of the protective cover. This ensures sufficient contact between the hot air and the porous ceramic frame while achieving a natural decrease in heat along the conveying direction, resulting in a smooth, gradual cooling gradient without complex control. The heat storage characteristics of the porous ceramic frame, combined with the decreasing temperature distribution, ensure that the ambient temperature in the front half of the protective cover gradually decreases from the feed end to the partition end. The injection molded part experiences a gradually weakening heating effect during movement, avoiding internal stress caused by sudden temperature changes. A soft heat insulation sheet divides the protective cover into independent front and rear temperature zones, effectively preventing cold air from the rear section from entering the front and interfering with the gradual cooling gradient, ensuring the independence of front and rear temperature control. The gradual cooling in the front section and the forced bottom cooling in the rear section work together to achieve full-process gradient temperature control of the injection molded part from demolding to cooling, significantly reducing the risk of warpage. The compact structure integrates heating, cooling, and monitoring into a single production line, reducing equipment footprint and manual intervention, and improving the level of production automation.

[0007] In a preferred embodiment, the monitoring mechanism includes: a mounting frame, fixedly mounted on the inner wall of the top of the protective cover and located at the end of the protective cover; and a laser profilometer and an infrared thermal imager, both fixedly mounted on the inner wall of the bottom of the mounting frame. The monitoring mechanism also includes a control unit, which is electrically connected to a laser profilometer, an infrared thermal imager, a hot air blower, a first guide fan, a cold air blower, and a drive base. The control unit is configured to: increase the output power of the cold air blower and reduce the running speed of the conveyor belt when the infrared thermal imager detects that the surface temperature of the injection molded part is higher than a first preset threshold; decrease the output power of the cold air blower and increase the running speed of the conveyor belt when the infrared thermal imager detects that the surface temperature of the injection molded part is lower than a second preset threshold; and increase the output temperature of the hot air blower and adjust the rotation speed of the first guide fan when the laser profilometer detects that the injection molded part has preset shrinkage marks or warping features and the temperature detected by the infrared thermal imager is within the normal range. The control unit is also configured to: when the laser profilometer detects shrinkage marks or warping features on the injection molded part, and the infrared thermal imager simultaneously detects that the temperature is higher than a first preset threshold, the control unit will first execute actions to increase the output power of the cold air blower and reduce the running speed of the conveyor belt. After the temperature returns to the normal range, it will then execute actions to increase the output temperature of the hot air blower and adjust the rotation speed of the guide fan.

[0008] By incorporating a monitoring mechanism and utilizing non-contact real-time monitoring with infrared thermal imagers and laser profilometers, the entire cooling process of injection molded parts can be tracked for quality, eliminating the need for manual sampling. The closed-loop control logic of the control unit directly feeds the monitoring data back to the actuators of the temperature control and cooling mechanisms, achieving integrated monitoring and control. This allows the system to automatically adapt to changes in different injection molded parts or environments, maintaining process stability. Prioritization logic avoids multi-variable conflicts: when the temperature exceeds the limit, cooling is addressed first, as temperature is one of the root causes of deformation. This temperature-first, shape-second control sequence is scientifically sound and improves the system's robustness. This intelligent monitoring and control system significantly reduces the defect rate and decreases manual debugging costs, enabling the intelligent upgrade of the injection molding production line.

[0009] In a preferred embodiment, the outer surface of the conveyor belt is fixedly connected with a plurality of flexible protrusions at equal intervals, and a plurality of sets of ventilation holes are simultaneously provided through the conveyor belt, with each set of ventilation holes being interspersed between two adjacent flexible protrusions. The cooling mechanism includes: a transition chamber, which is fixedly connected to the inner wall of the drive seat, and its top outer wall is movably attached to the inner surface of the conveyor belt; two sets of arc-shaped abutments, which are symmetrically fixedly connected to both ends of the transition chamber and movably attached to the inner surface of the conveyor belt, with heat insulation pads embedded in the arc-shaped abutments. The cooling mechanism further includes: multiple ventilation slots II, which are installed through the top inner wall of the transition chamber; and a mounting plate II, which is fixedly connected to one side outer wall of the transition chamber, and a cold air fan is fixedly installed on the mounting plate II, with the output end of the cold air fan passing through one end of the transition chamber. The cooling mechanism further includes: a second fan bracket, which is fixedly connected to the inner wall of the transition chamber, and the output end of the air cooler is located at the bottom end of the second fan bracket; and multiple second guide fans, which are equidistantly installed on the second fan bracket, with their output surfaces facing upwards. The cooling mechanism further includes: multiple inclined baffles, which are fixedly connected at equal intervals to the bottom inner wall of the transition chamber, and each inclined baffle has a slot between its top and the top inner wall of the transition chamber. Multiple transition slots are separated in the transition chamber by the multiple inclined baffles; multiple vent holes are provided at equal intervals through the inner walls of the opposite sides of some transition slots, and no vent holes are provided in the transition slot closest to the air cooler.

[0010] By incorporating a cooling mechanism and the design of multiple inclined baffles and slots within the transition chamber, a natural gradient of "cold at the near end and warm at the far end" is formed along the conveying direction of the cold air, seamlessly connecting with the slow cooling of the front section of the temperature control mechanism and avoiding abrupt cooling changes. The second guide fan concentrates upward airflow, which, in conjunction with the first vent on the conveyor belt, achieves directional and enhanced cooling of the bottom of the injection molded part, especially suitable for rapid heat dissipation from central holes or thick-walled areas. The arc-shaped backplate and heat insulation pad reduce cold air leakage and thermal bridging effects, improving cold energy utilization. The differentiated arrangement of the second vent—without holes at the near end and holes at the far end—balances the airflow in each area, preventing excessive airflow near the cooler while insufficient airflow at the far end, ensuring uniform cooling.

[0011] As described above, a supporting production line for injection molding includes an injection molding assembly and a conveyor belt, with the conveyor belt located at the output end of the injection molding assembly. It also includes: a drive unit connected to the inner walls of both sides of the conveyor belt for driving its movement; a temperature control mechanism disposed on the outer periphery of the conveyor belt; a cooling mechanism disposed within the drive unit, located in the middle of the conveyor belt; and a monitoring mechanism installed within the temperature control mechanism. The temperature control mechanism includes: a protective cover surrounding the outer periphery of the conveyor belt; and multiple porous ceramic frames equidistantly embedded in the inner walls of the protective cover on multiple sides, located in the front half of the protective cover. A fan bracket is embedded in the inner top wall of the protective cover, and multiple guide fans are equidistantly mounted on the fan bracket, with the output surfaces of the guide fans facing inwards towards the protective cover. A mounting plate is fixedly connected to the inner top wall of the protective cover and located on one side of the fan bracket; multiple flexible heat insulation sheets are fixedly connected to the bottom end of the mounting plate. Two hot air blowers are fixedly connected to the outer walls of the protective cover on both sides, and the output end of each hot air blower is fixedly connected to multiple air distribution pipes through a main air distribution pipe, with the output ends of the multiple air distribution pipes passing through one side of the protective cover. The injection molding production line provided by this invention effectively eliminates the internal stress caused by rapid cooling after the injection molded parts are demolded, and significantly reduces warpage deformation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a supporting production line for injection molding proposed in this invention.

[0013] Figure 2 This is a schematic diagram of the internal structure of a temperature control mechanism for an injection molding production line proposed in this invention.

[0014] Figure 3 This is a schematic diagram showing the temperature control mechanism of a supporting production line for injection molding proposed in this invention.

[0015] Figure 4 This is a schematic diagram showing the internal structure of a conveyor belt in an injection molding production line according to the present invention.

[0016] Figure 5This is a schematic diagram showing the internal breakdown of the cooling mechanism of a supporting production line for injection molding, as proposed in this invention.

[0017] In the diagram: 1. Injection molding component; 2. Temperature control mechanism; 3. Flexible raised strip; 4. Drive base; 5. Conveyor belt; 6. Vent hole one; 7. Monitoring mechanism; 8. Cooling mechanism; 201. Hot air blower; 202. Main air supply pipe; 203. Porous ceramic frame; 204. Protective cover; 205. Ventilation slot one; 206. Fan bracket one; 207. Guide fan one; 208. Mounting plate one; 209. Flexible heat insulation sheet; 210. Mounting slot; 211. Gas supply pipe; 701. Mounting bracket; 702. Laser profilometer; 703. Infrared thermal imager; 801. Arc-shaped backing plate; 802. Air cooler; 803. Mounting plate two; 804. Transition chamber; 805. Ventilation slot two; 806. Ventilation hole two; 807. Heat insulation pad; 808. Groove opening; 809. Sloping baffle; 810. Fan bracket two; 811. Guide fan two. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] The injection molding production line disclosed in this invention is mainly used in injection molding production scenarios.

[0020] Reference Figures 1-3 A production line for injection molding includes an injection molding assembly 1 and a conveyor belt 5, with the conveyor belt 5 located at the output end of the injection molding assembly 1. The production line also includes a drive unit 4, a temperature control mechanism 2, a cooling mechanism 8, and a monitoring mechanism 7.

[0021] The drive unit 4 is connected to the inner walls of both sides of the conveyor belt 5 and is used to drive the conveyor belt 5 to move in a cycle. The temperature control mechanism 2 is located on the outer periphery of the conveyor belt 5, the cooling mechanism 8 is located inside the drive unit 4 and in the middle area of ​​the conveyor belt 5, and the monitoring mechanism 7 is installed inside the temperature control mechanism 2.

[0022] After injection molding is completed, injection molding component 1 outputs the injection molded part to conveyor belt 5. Drive seat 4 drives conveyor belt 5 to move, so that the injection molded part passes through the first half (slow cooling zone) and the second half (strong cooling zone) of temperature control mechanism 2 in sequence. At the same time, cooling mechanism 8 delivers cold air from the bottom to the top, and monitoring mechanism 7 detects the product status in real time.

[0023] The temperature control mechanism 2 includes a protective cover 204, a porous ceramic frame 203, a fan bracket 206, a guide fan 207, a mounting plate 208, a flexible heat insulation sheet 209, and two hot air blowers 201.

[0024] A protective cover 204 surrounds the outer perimeter of the conveyor belt 5. In the front half of the protective cover 204, multiple mounting slots 210 are equidistantly embedded in its inner walls on multiple sides, with a perforated ceramic frame 203 fixedly embedded in each slot 210. A ventilation slot 205 is formed through the top inner wall of the protective cover 204, and a fan bracket 206 is fixedly installed within the ventilation slot 205. Multiple guide fans 207 are equidistantly installed on the fan bracket 206, with the output surfaces of the guide fans 207 facing inwards towards the protective cover 204 (i.e., upward exhaust). A mounting plate 208 is fixedly connected to the top inner wall of the protective cover 204 and located on one side of the fan bracket 206. Multiple flexible heat insulation sheets 209 are fixedly connected to the bottom end of the mounting plate 208, serving as a physical partition between the front and rear temperature zones. Two hot air blowers 201 are fixed to the outer walls of the protective cover 204 on both sides respectively. The output end of each hot air blower 201 is fixedly connected to multiple gas supply branches 211 through the gas supply main pipe 202. The output end of the gas supply branches 211 passes through the side wall of the protective cover 204 and enters the interior.

[0025] During operation, the hot air blower 201 generates hot air, which is delivered into the interior of the protective cover 204 from both sides of the front end through the main air supply pipe 202 and the branch air supply pipe 211. The guide fan 207 exhausts air upwards, forming a horizontal airflow from the air inlet end to the partition end inside the front half of the protective cover 204, guiding the hot air upwards. The hot air flows sequentially through multiple porous ceramic frames 203; the porous ceramic frames 203 absorb and store heat. The ceramic frames closer to the hot air blower 201 have the highest contact temperature with the hot air and store the most heat, while the ceramic frames farther away from the hot air blower 201 store less heat and have a lower temperature because the hot air releases heat along the way. This naturally forms a decreasing temperature gradient from the feed end to the partition end in the front half of the protective cover 204. The soft heat insulation sheet 209 effectively prevents cold air from the rear section from entering the front section and interfering with the slow cooling gradient.

[0026] The injection-molded parts are subjected to gradually decreasing heating during movement, avoiding internal stress caused by sudden temperature changes. The front-end gradual cooling is seamlessly integrated with the rear-end forced bottom cooling, achieving gradient temperature control throughout the process and significantly reducing the risk of warpage. This structure integrates heating, cooling, and monitoring into a single production line, reducing equipment footprint and manual intervention.

[0027] Reference Figure 4 and Figure 5 In a preferred embodiment, multiple flexible raised strips 3 are fixedly connected at equal intervals on the outer surface of the conveyor belt 5, and multiple sets of ventilation holes 6 are simultaneously provided through the conveyor belt 5, with each set of ventilation holes 6 interlaced between two adjacent flexible raised strips 3. The flexible raised strips 3 can increase the friction between the product and the conveyor belt, while avoiding scratching the product.

[0028] The cooling mechanism 8 includes a transition chamber 804, an arc-shaped backing plate 801, a heat insulation pad 807, a second ventilation slot 805, a second mounting plate 803, a cooler 802, a second fan bracket 810, a second guide fan 811, an inclined baffle 809, a slot 808, and a second vent 806.

[0029] The transition chamber 804 is fixedly connected to the inner wall of the drive seat 4, and its top outer wall is movably fitted against the inner surface of the conveyor belt 5. Two sets of arc-shaped abutment plates 801 are symmetrically fixedly connected to both ends of the transition chamber 804, and movably fitted against the inner surface of the conveyor belt 5. The arc-shaped abutment plates 801 are inlaid with heat insulation pads 807 to reduce heat conduction. Multiple ventilation slots 805 are provided through the top inner wall of the transition chamber 804. The mounting plate 803 is fixedly connected to one side outer wall of the transition chamber 804, and a cooler 802 is fixedly mounted on the mounting plate 803. The output end of the cooler 802 passes through one end of the transition chamber 804. The fan bracket 810 is fixedly connected to the inner wall of the transition chamber 804. The output end of the cooler 802 is located at the bottom end of the fan bracket 810, and multiple upward-facing guide fans 811 are equidistantly mounted on the fan bracket 810. Multiple inclined baffles 809 are fixedly connected at equal intervals to the bottom inner wall of the transition chamber 804. A slot 808 is left between the top of each inclined baffle 809 and the top inner wall of the transition chamber 804. The multiple inclined baffles 809 divide the interior of the transition chamber 804 into multiple transition slots. Multiple vent holes 806 are equally spaced through the inner walls of opposite sides of some transition slots. No vent holes 806 are provided in the transition slot closest to the air cooler 802.

[0030] Cooler 802 generates cold air which enters the transition chamber 804. The cold air first passes through the transition slot closest to the cooler 802 (this slot has no vent 806), and then flows gradually towards the far end through the slot 808 at the top of the inclined baffle 809. The ventilation slot 805 and the guide fan 811 corresponding to each transition slot blow the cold air upward, through the vent 6 on the conveyor belt 5, and act on the bottom of the injection molded part. The vent 806 is opened on the side wall of some transition slots to supplement air and ensure balanced airflow in each area. The inclined baffle 809 causes the cold air to gradually absorb heat and rise in temperature during flow, forming a temperature gradient from the cooler end to the far end, seamlessly connecting with the front slow cooling of the temperature control mechanism 2. The guide fan 811 blows concentrated air upward, working in conjunction with the vent 6 to achieve directional and enhanced cooling of the bottom of the injection molded part, especially suitable for rapid heat dissipation of central holes or thick-walled parts. The curved backplate 801 and the heat insulation pad 807 reduce cold air leakage and thermal bridging effects, improving the utilization rate of cold energy. The differentiated setting of the second vent 806 (no vents near the near end and vents at the far end) balances the air volume in each area, preventing excessive air volume near the air cooler 802 while insufficient air volume at the far end, thus ensuring uniform cooling.

[0031] Reference Figure 2In a preferred embodiment, the monitoring mechanism 7 includes a mounting bracket 701, a laser profilometer 702, an infrared thermal imager 703, and a control unit.

[0032] Mounting bracket 701 is fixedly installed on the inner wall of the top of protective cover 204 and located at the end of protective cover 204. Laser profilometer 702 and infrared thermal imager 703 are simultaneously fixedly installed on the inner wall of the bottom of mounting bracket 701.

[0033] The control unit is electrically connected to the laser profilometer 702, the infrared thermal imager 703, the hot air blower 201, the guide fan 207, the cold air blower 802, and the drive seat 4 (used to control the speed of the conveyor belt 5).

[0034] During production line operation, infrared thermal imager 703 collects temperature distribution data on the surface of the injection molded part, and laser profilometer 702 collects the shape contour data of the injection molded part. The control unit receives the data and compares it with preset thresholds. If the temperature is higher than the first preset threshold, it is determined that the cooling is insufficient. The output power of the air cooler 802 is increased and the running speed of the conveyor belt 5 is reduced to extend the cooling time.

[0035] If the temperature is below the second preset threshold, it is determined to be too cold. The output power of the air cooler 802 is reduced and the running speed of the conveyor belt 5 is increased to save energy.

[0036] If the laser profilometer 702 detects a preset shrinkage mark or warping feature on the injection molded part, and the temperature detected by the infrared thermal imager 703 is within the normal range, it is determined that the front-end slow cooling gradient is inappropriate. The control unit increases the output temperature of the hot air blower 201 and adjusts the speed of the guide fan 207 to optimize the front-end temperature distribution.

[0037] When the laser profilometer 702 detects shrinkage marks or warping features, and the infrared thermal imager 703 detects that the temperature is higher than the first preset threshold, the control unit first executes the actions of increasing the output power of the cooling fan 802 and reducing the running speed of the conveyor belt 5. After the temperature returns to the normal range, it then executes the actions of increasing the output temperature of the hot air fan 201 and adjusting the speed of the guide fan 207.

[0038] Through the aforementioned closed-loop control logic, quality tracking and automated process adjustment throughout the entire cooling process of injection molded parts are achieved. The temperature-priority control sequence is scientifically sound and reasonable, improving system robustness, reducing defect rates and manual debugging costs, and realizing the intelligent upgrade of the production line.

[0039] By using the front-end slow cooling and the rear-end forced cooling of the temperature control mechanism 2, along with the gradient air supply of the cooling mechanism 8 and the real-time closed-loop control of the monitoring mechanism 7, the problem of sudden cooling deformation of injection molded parts after demolding is effectively solved, the cooling uniformity and product quality are improved, and the system has a high level of automation and intelligence.

[0040] Working Principle: During operation, the injection molding assembly 1 outputs the injection molded part to the conveyor belt 5, and the drive seat 4 drives the conveyor belt 5 to move forward. The injection molded part first enters the first half of the temperature control mechanism 2: two hot air blowers 201 send hot air in from both sides of the front end, and the guide fan 207 exhausts air upward, causing the hot air to flow horizontally backward and pass through multiple porous ceramic frames 203 in sequence; the porous ceramic frames absorb heat, and the temperature decreases from the end near the hot air blower to the far end, forming a slow cooling gradient of warm in front and cold in back. The injection molded part cools down slowly in this range to avoid sudden cooling deformation. Subsequently, the injection molded part enters the second half of the protective cover 204, where the cold air blower 802 of the cooling mechanism 8 generates cold air, which is blown upward through the ventilation hole 6 of the conveyor belt 5 by the guide fan 811, forcibly cooling the center of the bottom of the injection molded part. Meanwhile, the infrared thermal imager 703 and laser profilometer 702 in the monitoring unit 7 collect product temperature and shape data in real time. The control unit automatically adjusts the power of the cooling fan, the speed of the conveyor belt, the temperature of the front-end hot air fan, and the speed of the guide fan according to the preset threshold, forming a closed-loop control to ensure cooling quality.

[0041] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A production line for injection molding, comprising an injection molding assembly (1) and a conveyor belt (5), wherein the conveyor belt (5) is located at the output end of the injection molding assembly (1), characterized in that, Also includes: The drive seat (4) is connected to the inner walls of both sides of the conveyor belt (5) and is used to drive the conveyor belt (5) to move. Temperature control mechanism (2) is located on the outer periphery of conveyor belt (5); The cooling mechanism (8) is located inside the drive seat (4) and in the middle of the conveyor belt (5); The monitoring unit (7) is installed inside the temperature control unit (2); The temperature control mechanism (2) includes: A protective cover (204) surrounds the outer periphery of the conveyor belt (5); Multiple porous ceramic frames (203) are equidistantly embedded in the inner walls of multiple sides of the protective cover (204) and located in the front half of the protective cover (204); A fan bracket (206) is embedded in the inner top wall of the protective cover (204), and multiple guide fans (207) are installed at equal intervals on the fan bracket (206), with the output surfaces of the multiple guide fans (207) facing the inside of the protective cover (204); Mounting plate 1 (208) is fixedly connected to the top inner wall of the protective cover (204) and located on one side of fan bracket 1 (206). Multiple soft heat insulation sheets (209) are fixedly connected to the bottom end of mounting plate 1 (208). Two hot air blowers (201) are fixedly connected to the outer walls of the protective cover (204) on both sides respectively, and the output end of each hot air blower (201) is fixedly connected to multiple gas supply branches (211) through the gas supply main pipe (202). The output ends of the multiple gas supply branches (211) pass through one side of the protective cover (204) at the same time.

2. The injection molding production line according to claim 1, characterized in that, The inner wall of the protective cover (204) is provided with multiple mounting slots (210) at equal intervals, and multiple porous ceramic frames (203) are respectively fixedly embedded in the multiple mounting slots (210). The top inner wall of the protective cover (204) is provided with a ventilation slot (205), and a fan bracket (206) is fixedly installed in the ventilation slot (205).

3. The injection molding production line according to claim 1, characterized in that, The outer surface of the conveyor belt (5) is fixedly connected with multiple flexible protrusions (3) at equal intervals, and multiple sets of ventilation holes (6) are simultaneously provided on the conveyor belt (5). Each set of ventilation holes (6) is interspersed between two adjacent flexible protrusions (3).

4. The injection molding production line according to claim 1, characterized in that, The cooling mechanism (8) includes: The transition chamber (804) is fixedly connected to the inner wall of the drive seat (4), and its top outer wall is movably attached to the inner surface of the conveyor belt (5); Two sets of arc-shaped abutments (801) are symmetrically fixed to both ends of the transition chamber (804) and movably fit against the inner surface of the conveyor belt (5). The arc-shaped abutments (801) are inlaid with heat insulation pads (807).

5. The injection molding production line according to claim 4, characterized in that, The cooling mechanism (8) further includes: Multiple ventilation slots (805) are installed through the top inner wall of the transition chamber (804); Mounting plate two (803) is fixedly connected to one side of the outer wall of the transition chamber (804), and a cooler (802) is fixedly installed on mounting plate two (803), with the output end of the cooler (802) passing through one end of the transition chamber (804).

6. The injection molding production line according to claim 5, characterized in that, The cooling mechanism (8) further includes: Fan bracket two (810) is fixedly connected to the inner wall of the transition chamber (804), and the output end of the air cooler (802) is located at the bottom end of fan bracket two (810); Multiple guide fans 2 (811) are installed at equal intervals on fan bracket 2 (810), with their output surfaces facing upwards.

7. A supporting production line for injection molding according to claim 6, characterized in that, The cooling mechanism (8) further includes: Multiple inclined baffles (809) are fixedly connected at equal intervals to the bottom inner wall of the transition chamber (804), and a slot (808) is provided between the top of each inclined baffle (809) and the top inner wall of the transition chamber (804). Multiple transition slots are separated in the transition chamber (804) by multiple inclined baffles (809). Multiple ventilation holes (806) are equidistantly arranged on the inner walls of opposite sides of a portion of the transition groove, but no ventilation holes (806) are provided in the transition groove closest to the air cooler (802).

8. The injection molding production line according to claim 5, characterized in that, The monitoring agency (7) includes: Mounting bracket (701) is fixedly installed on the top inner wall of the protective cover (204) and located at the end of the protective cover (204); A laser profilometer (702) and an infrared thermal imager (703) are simultaneously fixedly installed on the inner wall of the bottom end of the mounting bracket (701).

9. A supporting production line for injection molding according to claim 8, characterized in that, The monitoring mechanism (7) also includes a control unit, which is electrically connected to the laser profilometer (702), the infrared thermal imager (703), the hot air blower (201), the first guide fan (207), the cold air blower (802), and the drive seat (4), respectively. The control unit is configured to: increase the output power of the cold air blower (802) and reduce the running speed of the conveyor belt (5) when the infrared thermal imager (703) detects that the surface temperature of the injection molded part is higher than the first preset threshold; decrease the output power of the cold air blower (802) and increase the running speed of the conveyor belt (5) when the infrared thermal imager (703) detects that the surface temperature of the injection molded part is lower than the second preset threshold; and increase the output temperature of the hot air blower (201) and adjust the rotation speed of the first guide fan (207) when the laser profilometer (702) detects that the injection molded part has preset shrinkage marks and warping features, and the temperature detected by the infrared thermal imager (703) is within the normal range.

10. A supporting production line for injection molding according to claim 9, characterized in that, The control unit is also configured to: when the laser profilometer (702) detects shrinkage marks and warping features on the injection molded part, and the infrared thermal imager (703) simultaneously detects that the temperature is higher than the first preset threshold, the control unit will first perform actions to increase the output power of the cold air blower (802) and reduce the running speed of the conveyor belt (5), and after the temperature returns to the normal range, it will then perform actions to increase the output temperature of the hot air blower (201) and adjust the speed of the guide fan (207).

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