Efficient energy-saving nylon injection molding machine

Abstract

The utility model provides an efficient energy-saving nylon injection molding machine, which relates to the technical field of injection molding equipment and comprises an injection molding mechanism, and a feeding mechanism is arranged at the top of the injection molding mechanism. According to the high-efficiency and energy-saving nylon injection molding machine provided by the utility model, hot air flow generated by the heating assembly is combined with a forced circulation function of the fan assembly, so that hot air continuously circulates in the pretreatment box, nylon raw materials are effectively heated and dried, the contact efficiency of the raw materials and the hot air is improved, and the production efficiency is improved. Efficient preheating treatment of the nylon raw material is achieved, nylon particles can obtain certain heat before entering the screw extruder through heat, the plasticizing speed is greatly increased, temperature distribution in the nylon particles is relatively uniform in the preheating process, moisture and moisture in the nylon raw material can be effectively removed, and the plasticity of the nylon raw material is improved. Therefore, defects such as bubbles and silver wires on the surface of the product are reduced.

Description

Technical Field

[0001] This utility model relates to the field of injection molding equipment technology, and in particular to a high-efficiency and energy-saving nylon injection molding machine. Background Technology

[0002] Nylon is a synthetic polyamide polymer material with good wear resistance, mechanical strength and chemical stability. Nylon injection molding machines are often needed in the manufacturing of automotive parts, electronic and electrical housings, industrial machinery parts and other products. High-efficiency and energy-saving nylon injection molding machines can accurately melt and plasticize nylon granules and inject them into the mold cavity under high pressure. After cooling and shaping, they can efficiently produce nylon products with various complex shapes, precise dimensions and excellent performance.

[0003] However, in existing technologies, high-efficiency and energy-saving nylon injection molding machines typically involve adding nylon raw materials and additives to a screw extruder for heating and melting to achieve a transformation from a solid to a viscous flow state. However, since nylon has a low initial temperature, directly heating the nylon raw materials results in a large internal temperature gradient, leading to uneven plasticization. Furthermore, nylon has a certain degree of water absorption, and its raw materials may contain moisture, making it easy to generate bubbles during heating, which affects the quality and performance of the products. Summary of the Invention

[0004] In view of this, the purpose of this utility model is to propose a high-efficiency and energy-saving nylon injection molding machine to solve all or one of the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides a high-efficiency and energy-saving nylon injection molding machine, which includes an injection mechanism and a feeding mechanism at the top of the injection mechanism.

[0006] The injection molding mechanism includes a molding machine body, a screw extruder mounted on the top of the molding machine body, a pretreatment box fixedly connected to the top of the molding machine body, a set of infrared heating tubes fixedly connected to the inner wall of the pretreatment box, a partition fixedly connected to the inner wall of the pretreatment box, two first circulating fans fixedly inserted into the inner wall of the partition, two second circulating fans fixedly inserted into the inner wall of the partition, two dehumidification fans fixedly inserted into the inner wall of the pretreatment box, and a temperature sensor fixedly installed on the inner wall of the pretreatment box.

[0007] Optionally, the inner wall of the pretreatment box is fixedly connected to two fixed rods, and a flow guide is movably sleeved between the outer walls of the two fixed rods. A movable rod is fixedly connected to one side of the outer wall of the flow guide, and a guide cylinder is movably sleeved on the outer wall of the movable rod, with the outer wall of the guide cylinder fixedly inserted inside the pretreatment box.

[0008] Optionally, a first linkage rod is movably inserted into the inner wall of the movable rod, a connecting rod is movably sleeved on the outer wall of the first linkage rod, a second linkage rod is movably inserted into the inner wall of the connecting rod, a rotating disk is fixedly connected to one side of the outer wall of the second linkage rod, and a drive motor is fixedly inserted into the inner wall of the rotating disk.

[0009] Optionally, a guide plate is fixedly connected to the inner wall of the pretreatment box, a feeding hopper is fixedly connected to the bottom of the pretreatment box, and the output end of the feeding hopper is fixedly connected to the input end of the screw extruder. An electrical control cabinet is fixedly installed on one side of the outer wall of the pretreatment box.

[0010] Optionally, the feeding mechanism includes a conveying pipe, with two first bearings fixedly inserted into the inner wall of the conveying pipe, and a rotating shaft fixedly inserted between the two first bearings.

[0011] Optionally, a first spiral blade is fixedly sleeved on the outer wall of the rotating shaft, a conveying motor is fixedly connected to one side of the outer wall of the rotating shaft, and a discharge hopper is fixedly connected to the outer wall of the conveying pipe.

[0012] Optionally, the input end of the conveying pipe is fixedly connected to a mixing tank, and a second bearing is fixedly inserted into the inner wall of the mixing tank.

[0013] Optionally, a stirring shaft is fixedly inserted inside the second bearing, and a second helical blade is fixedly sleeved on the outer wall of the stirring shaft.

[0014] Optionally, a stirring motor is fixedly connected to one side of the outer wall of the stirring shaft, and a material valve is provided on the inner surface of the stirring tank.

[0015] Optionally, the top of the pretreatment box is fixedly connected to the bottom of the discharge hopper.

[0016] As can be seen from the above, the high-efficiency and energy-saving nylon injection molding machine provided by this utility model utilizes the hot air flow generated by the heating component, combined with the forced circulation function of the fan component, to continuously circulate the hot air in the pretreatment box, effectively heating and drying the nylon raw material. Furthermore, through the transmission of the motor drive combined with the eccentric connecting rod assembly, the guide frame achieves reciprocating motion and generates stable vibration, improving the contact efficiency between the raw material and the hot air. In this way, efficient preheating treatment of nylon raw material is achieved. The heat allows the nylon granules to acquire a certain amount of heat before entering the screw extruder, greatly increasing the plasticizing speed. Moreover, the preheating process makes the temperature distribution inside the nylon granules relatively uniform, effectively removing moisture and water from the nylon raw material, thereby reducing defects such as bubbles and silver streaks on the product surface and improving product quality and appearance. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A perspective view of the main structure of the high-efficiency and energy-saving nylon injection molding machine provided by this utility model;

[0019] Figure 2 A three-dimensional exploded view of the injection molding mechanism in the high-efficiency and energy-saving nylon injection molding machine provided by this utility model;

[0020] Figure 3 A three-dimensional sectional view of the injection mechanism in the high-efficiency and energy-saving nylon injection molding machine provided by this utility model;

[0021] Figure 4 A three-dimensional exploded view of the injection mechanism in the high-efficiency and energy-saving nylon injection molding machine provided by this utility model;

[0022] Figure 5 Top-view perspective exploded view of the injection mechanism in the high-efficiency and energy-saving nylon injection molding machine provided by this utility model;

[0023] Figure 6 A three-dimensional exploded view of the feeding mechanism in the high-efficiency and energy-saving nylon injection molding machine provided by this utility model.

[0024] in:

[0025] 1. Injection molding mechanism; 101. Molding machine body; 102. Screw extruder; 103. Pretreatment box; 104. Infrared heating tube; 105. Fixed rod; 106. Flow guide frame; 107. Moving rod; 108. Guide cylinder; 109. First linkage rod; 110. Connecting rod; 111. Second linkage rod; 112. Rotary disc; 113. Drive motor; 114. Partition plate; 115. First circulating fan; 116. Second circulating fan; 11 7. Exhaust fan; 118. Guide plate; 119. Discharge hopper; 120. Temperature sensor; 121. Electrical control cabinet; 2. Feeding mechanism; 201. Conveying pipe; 202. First bearing; 203. Rotating shaft; 204. First spiral blade; 205. Conveying motor; 206. Discharge hopper; 207. Mixing tank; 208. Second bearing; 209. Mixing shaft; 210. Second spiral blade; 211. Mixing motor; 212. Material valve. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0027] Example 1, such as Figures 1-6 As shown, this utility model provides a high-efficiency and energy-saving nylon injection molding machine, which includes an injection mechanism 1 and a feeding mechanism 2 provided on the top of the injection mechanism 1.

[0028] The injection molding mechanism 1 includes a molding machine body 101, a screw extruder 102 mounted on the top of the molding machine body 101, a pretreatment box 103 fixedly connected to the top of the molding machine body 101, and a set of infrared heating tubes 104 fixedly connected to the inner wall of the pretreatment box 103. A partition 114 is fixedly connected to the inner wall of the pretreatment box 103, two first circulating fans 115 and two second circulating fans 116 are fixedly inserted into the inner wall of the partition 114.

[0029] Two dehumidifying fans 117 are fixedly inserted into the inner wall of the pretreatment chamber 103, and a temperature sensor 120 is fixedly installed on the inner wall of the pretreatment chamber 103. Heat is generated by a set of infrared heating tubes 104, and a partition 114 divides the pretreatment chamber 103 into upper and lower zones. The fan assembly promotes the circulation of hot air within the chamber, effectively heating the nylon raw material. This preheating process ensures a uniform temperature distribution inside the nylon particles, promotes the orderly arrangement of nylon molecular chains, effectively reduces molecular chain breakage and uneven crystallization caused by temperature differences, and effectively removes moisture and water from the nylon raw material, thereby optimizing the material's processing performance and the quality of the final product.

[0030] The working principle here is as follows: First, the pretreatment box 103 is divided into upper and lower areas by a partition 114. When the nylon raw material is transported inside the pretreatment box 103, a set of infrared heating tubes 104 are activated to generate heat. The temperature inside the box is monitored in real time by a temperature sensor 120. By precisely controlling the heating power of the infrared heating tubes 104, the temperature inside the box is ensured to be maintained within a preset range. At the same time, two first circulating fans 115 and two second circulating fans 116 are activated. The second circulating fans 116 are responsible for extracting hot air from the bottom space and transporting it to the top space, while the two first circulating fans 115 send the hot air from the top space back to the bottom space, thereby achieving hot air circulation heating. During the heating process, the generated moisture, due to its lower density, will accumulate in the top area of ​​the gas. At this time, by activating two dehumidifying fans 117, the dehumidifying fans 117 can effectively remove the moisture from the top area, thereby keeping the environment inside the box dry and further optimizing the preheating effect of the nylon raw material.

[0031] like Figures 1-6As shown, two fixed rods 105 are fixedly connected to the inner wall of the pretreatment box 103. A flow guide 106 is movably sleeved between the outer walls of the two fixed rods 105. A movable rod 107 is fixedly connected to one side of the outer wall of the flow guide 106. A guide cylinder 108 is movably sleeved on the outer wall of the movable rod 107, and the outer wall of the guide cylinder 108 is fixedly inserted inside the pretreatment box 103. A first linkage rod 109 is movably inserted into the inner wall of the movable rod 107. A connecting rod 110 is movably sleeved on the outer wall of the first linkage rod 109. A second linkage rod 111 is movably inserted into the inner wall of the connecting rod 110. A rotating disk 112 is fixedly connected to one side of the outer wall of the second linkage rod 111. A drive motor 113 is fixedly inserted into the inner wall of the rotating disk 112.

[0032] A guide plate 118 is fixedly connected to the inner wall of the pretreatment box 103, and a discharge hopper 119 is fixedly connected to the bottom of the pretreatment box 103. The output end of the discharge hopper 119 is fixedly connected to the input end of the screw extruder 102. An electrical control cabinet 121 is fixedly installed on one side of the outer wall of the pretreatment box 103. Driven by a drive motor 113 and combined with the transmission of the connecting rod assembly, the guide frame 106 can reciprocate and generate a certain vibration, thereby causing the nylon raw material to continuously slide down and tumble along the inclined surface of the guide frame 106, thus exchanging heat with the circulating hot air more effectively. This method significantly enhances the contact efficiency and uniformity between the nylon raw material and the hot air, allowing the nylon raw material to absorb heat more fully and achieve a more ideal preheating effect.

[0033] The working principle here is as follows: When the nylon raw material is conveyed to the top of the guide frame 106, the drive motor 113 is first started. The output shaft of the drive motor 113 drives the rotating disk 112 to start rotating. Since a second linkage rod 111 is fixedly connected to one side of the outer wall of the rotating disk 112, and a connecting rod 110 is movably sleeved on the outer surface of the second linkage rod 111, the rotation of the rotating disk 112 can be converted into the reciprocating motion of the connecting rod 110. Subsequently, the connecting rod 110 drives the moving rod 107 to reciprocate through the linkage of the first linkage rod 109, thereby causing the guide frame 106 to vibrate. This vibration causes the nylon raw material to slide down the inclined surface of the guide frame 106 continuously and tumble in the process, ensuring sufficient contact and efficient heat exchange between the raw material and the circulating hot air.

[0034] like Figures 1-6As shown, the feeding mechanism 2 includes a conveying pipe 201. Two first bearings 202 are fixedly inserted into the inner wall of the conveying pipe 201. A rotating shaft 203 is fixedly inserted between the two first bearings 202. A first spiral blade 204 is fixedly sleeved on the outer wall of the rotating shaft 203. A conveying motor 205 is fixedly connected to one side of the outer wall of the rotating shaft 203. A discharge hopper 206 is fixedly connected to the outer wall of the conveying pipe 201. A mixing tank 207 is fixedly connected to the input end of the conveying pipe 201. A second bearing 208 is fixedly inserted into the inner wall of the mixing tank 207. A stirring shaft 209 is fixedly inserted inside the second bearing 208. A second spiral blade 210 is fixedly sleeved on the outer wall of the stirring shaft 209. A stirring motor 211 is fixedly connected to one side of the outer wall of the stirring shaft 209. A material valve 212 is provided on the inner wall of the mixing tank 207.

[0035] The top of the pretreatment tank 103 is fixedly connected to the bottom of the discharge hopper 206. First, the spiral stirring action of the stirring assembly is used to fully mix the nylon raw material with various additives and stabilizers, thereby achieving a uniform distribution of the raw material and additives and ensuring sufficient reaction and uniformity between the nylon raw material and the additives. Next, the uniform conveying function of the spiral conveyor assembly can smoothly and continuously transport the uniformly stirred nylon raw material to the heating assembly for heat treatment. The uniform speed characteristic of the spiral conveyor assembly effectively avoids the accumulation of nylon raw material during the conveying process, thus preventing uneven heating caused by accumulation.

[0036] Working Principle: In use, firstly, the sensing end of the sensor assembly must be connected to the data acquisition unit of the electrical control cabinet 121 to ensure accurate data transmission. The data acquisition unit and control unit of the electrical control cabinet 121 are existing technologies, capable of efficiently and stably collecting and processing data. Subsequently, nylon raw materials and various additives are added to the mixing tank 207 in proportion. The stirring motor 211 is started, and its output will drive the stirring shaft 209 and the second spiral blade 210 to rotate, thereby achieving thorough mixing and stirring of the materials and ensuring uniform distribution of the raw materials and additives.

[0037] After thorough mixing, the material valve 212 is opened, allowing the material to fall smoothly into the conveying pipe 201. At this time, the conveying motor 205 is started, and its output end drives the rotating shaft 203 and the first spiral blade 204 to rotate, thereby conveying the thoroughly mixed material evenly to the pretreatment box 103 through the discharge hopper 206. The material first reaches the top of the guide frame 106. At this time, the drive motor 113 is started, and its output end drives the rotating disk 112 to rotate. Since the second linkage rod 111 is fixedly connected to the eccentric end of one side of the outer wall of the rotating disk 112, and the connecting rod 110 is movably sleeved on the outer wall of the second linkage rod 111, the rotational motion of the rotating disk 112 can be converted into the reciprocating motion of the connecting rod 110. The connecting rod 110 then drives the moving rod 107 to reciprocate through the first linkage rod 109, causing the guide frame 106 to vibrate. This vibration causes the nylon raw material to continuously slide and tumble along the inclined surface of the guide frame 106, improving the contact efficiency between the raw material and the hot air. Simultaneously, a set of infrared heating tubes 104 are activated to generate heat and heat the materials inside the pretreatment box 103. Temperature sensor 120 monitors the box temperature in real time, and the control unit inside the electrical control cabinet 121 adjusts the heating power of the infrared heating tubes 104 based on temperature feedback to ensure the box temperature is controlled within a certain range. Furthermore, two first circulating fans 115 and two second circulating fans 116 are activated. Since the partition 114 divides the pretreatment box 103 into upper and lower areas, the second circulating fans 116 draw hot air from the bottom space to the top space, while the two first circulating fans 115 return the hot air from the top space to the bottom space, thus achieving circulating heating. The moisture generated during heating, due to its low density, accumulates at the top. At this time, two dehumidifying fans 117 are activated to effectively remove the accumulated moisture, ensuring a dry and stable heating environment.

[0038] The embodiments of this utility model are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high efficiency energy saving nylon injection molding machine characterized by: The high -efficient energy -conserving nylon injection molding machine includes injection mechanism (1), the top of injection mechanism (1) is provided with feeding mechanism (2); The injection mechanism (1) includes a molding machine body (101), the top of the molding machine body (101) is provided with a screw extruder (102), the top of the molding machine body (101) is fixedly connected with a pretreatment box (103), the inner surface wall of the pretreatment box (103) is fixedly connected with a group of infrared heating pipes (104), the inner surface wall of the pretreatment box (103) is fixedly connected with a partition (114), the inner surface wall of the partition (114) is fixedly inserted with two first circulating fans (115), the inner surface wall of the partition (114) is fixedly inserted with two second circulating fans (116), the inner surface wall of the pretreatment box (103) is fixedly inserted with two dehumidification fans (117), and the inner surface wall of the pretreatment box (103) is fixedly installed with a temperature sensor (120).

2. The energy efficient nylon injection molding machine of claim 1, wherein, The inner surface wall of the pretreatment box (103) is fixedly connected with two fixed rods (105), the outer surface wall between the two fixed rods (105) is movably sleeved with a flow guide frame (106), one side of the outer wall of the flow guide frame (106) is fixedly connected with a moving rod (107), the outer surface wall of the moving rod (107) is movably sleeved with a guide cylinder (108), and the outer surface wall of the guide cylinder (108) is fixedly inserted into the inside of the pretreatment box (103).

3. The energy efficient nylon injection molding machine of claim 2, wherein, The inner surface wall of the moving rod (107) is movably inserted with a first linkage rod (109), the outer surface wall of the first linkage rod (109) is movably sleeved with a connecting rod (110), the inner surface wall of the connecting rod (110) is movably inserted with a second linkage rod (111), one side of the outer wall of the second linkage rod (111) is fixedly connected with a rotating disc (112), and the inner surface wall of the rotating disc (112) is fixedly inserted with a driving motor (113).

4. The energy efficient nylon injection molding machine of claim 3, wherein, The inner surface wall of the pretreatment box (103) is fixedly connected with a material guide plate (118), the bottom of the pretreatment box (103) is fixedly communicated with a discharge hopper (119), and the output end of the discharge hopper (119) is fixedly communicated with the input end of the screw extruder (102), and one side of the outer wall of the pretreatment box (103) is fixedly installed with an electrical control cabinet (121).

5. The energy efficient nylon injection molding machine of claim 4, wherein, The feeding mechanism (2) includes a conveying pipe (201), the inner surface wall of the conveying pipe (201) is fixedly inserted with two first bearings (202), and the interiors of the two first bearings (202) are fixedly inserted with a rotating shaft (203).

6. The energy efficient nylon injection molding machine of claim 5, wherein, The outer surface wall of the rotating shaft (203) is fixedly sleeved with a first spiral blade (204), one side of the outer wall of the rotating shaft (203) is fixedly connected with a conveying motor (205), and the outer surface wall of the conveying pipe (201) is fixedly communicated with a discharge hopper (206).

7. The energy efficient nylon injection molding machine of claim 6, wherein, The input end of the conveying pipe (201) is fixedly communicated with a stirring tank (207), and the inner surface wall of the stirring tank (207) is fixedly inserted with a second bearing (208).

8. The energy efficient nylon injection molding machine of claim 7, wherein, The inner part of the second bearing (208) is fixedly inserted with a stirring shaft (209), and the outer wall of the stirring shaft (209) is fixedly sleeved with a second spiral blade (210).

9. The energy efficient nylon injection molding machine of claim 8, wherein, The outer wall of the stirring shaft (209) is fixedly connected with a stirring motor (211), and the inner wall of the stirring tank (207) is provided with a material valve (212).

10. The energy efficient nylon injection molding machine of claim 9, wherein, The top of the pretreatment box (103) is fixedly communicated with the bottom of the discharge hopper (206).

Images