Cooling device of plastic injection molding machine

Abstract

The invention relates to the technical field of cooling devices, and discloses a cooling device of a plastic injection molding machine, which comprises a shell, and further comprises a heat dissipation part mounted on the shell; the number of the connecting parts is two, and the two connecting parts are both arranged on the shell; the plugging part is mounted on the shell; the connecting part comprises a mounting assembly, and the mounting assembly is arranged on the shell; the limiting assembly is mounted on the shell; the mounting assembly comprises a second connecting pipe arranged on the right side of the shell, two connecting rings are arranged on the outer wall of the second connecting pipe, a connecting rod penetrates through the two connecting rings, and a plurality of limiting grooves are formed in the connecting rod. Through the arrangement of the connecting part, the problems that in the using process of an existing cooling device, due to the long-term impact of cooling water pressure and the influence of equipment vibration, threads are prone to slipping and loosening, the sealing performance of the pipeline splicing position is reduced, and cooling water leakage is extremely prone to occurring are solved.

Description

Technical Field

[0001] This invention relates to the field of cooling device technology, specifically a cooling device for a plastic injection molding machine. Background Technology

[0002] Plastic injection molding is the mainstream process for molding and processing polymer materials. Injection molding machines mold plastic into pre-set plastic parts through melting, injection, and pressure holding. The rapid and uniform cooling of the mold cavity directly determines the molding efficiency, dimensional accuracy, and surface quality of the plastic parts. Therefore, the cooling device has become a core supporting equipment for injection molding machines. At present, most injection molding machines use a cooling water circulation mode for cooling. Cooling water is transported to the mold cooling channel through pipelines to achieve heat exchange. The stable connection of the cooling pipeline and the on-demand flow of coolant are the key to ensuring the cooling effect.

[0003] However, existing cooling devices are subject to long-term pressure impact from cooling water and equipment vibration during use, which can easily cause the threads to strip and loosen, resulting in a decrease in the sealing of pipe joints and making it very easy for cooling water to leak. Summary of the Invention

[0004] The purpose of this invention is to provide a cooling device for a plastic injection molding machine. By setting a connecting part, the problem of existing cooling devices being subject to long-term impact from cooling water pressure and equipment vibration during use, which can easily cause the threads to strip and loosen, resulting in a decrease in the sealing performance of the pipe joints and a high risk of cooling water leakage, is solved.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0006] This invention relates to a cooling device for a plastic injection molding machine, comprising a housing, and further comprising: a heat dissipation section mounted on the housing; two connecting sections, both mounted on the housing; a sealing section mounted on the housing; each connecting section includes an installation assembly mounted on the housing; and a limiting assembly mounted on the housing. The installation assembly includes a second connecting pipe located on the right side of the housing, with two connecting rings on its outer wall. A connecting rod passes through each of the two connecting rings, and the connecting rod has several limiting grooves. Each limiting groove has a limiting rod that is adapted to the limiting groove.

[0007] Furthermore, the heat dissipation unit includes heat dissipation holes opened on the outer casing, a guide pipe connected to the inner wall of the outer casing, a motor fixedly connected to the inner wall of the outer casing, a rotating shaft fixedly connected to the output shaft of the motor through a coupling, a fan blade fixedly connected to the outer wall of the rotating shaft, and two connecting pipes one on the right side of the outer casing, which are adapted to the corresponding connecting pipe two.

[0008] Furthermore, the sealing part includes a discharge assembly mounted on the outer casing; and a reset assembly disposed on the outer casing, both the discharge assembly and the reset assembly being located inside the guide tube.

[0009] Furthermore, the limiting component includes a hollow rod sleeved on the outer wall of the connecting rod. The top of the hollow rod contacts the connecting ring located below. A slide rail is fixedly connected to the outer wall of the hollow rod. The slide rail is connected to the mounting component. A friction block is slidably connected to the inner wall of the slide rail. An elastic element is provided inside the slide rail. The friction block extends outside the slide rail. The side of the friction block near the slide rail is frosted. The elastic element includes a spring provided inside the limiting rod. The right side of the spring is fixedly connected to the friction block, and the left side of the spring is fixedly connected to the limiting rod. After installation, the spring is in a stretched state.

[0010] Furthermore, the discharge assembly includes a fixed shell fixedly connected to the inner wall of the guide tube, and the fixed shell has a plurality of liquid outlets arranged in a circumferential array.

[0011] Furthermore, the reset assembly includes a slide rod fixedly connected to the inner wall of the liquid outlet, a sealing plate slidably connected to the outer wall of the slide rod, and an elastic element two disposed inside the fixed shell. The sealing plate and the fixed shell are in a sealed state. The elastic element two includes a spring two sleeved on the outer wall of the slide rod. The right side of the spring two is fixedly connected to the sealing plate, and the left side of the spring two is fixedly connected to the fixed shell. During operation, the spring two is in a compressed state.

[0012] The present invention has the following beneficial effects:

[0013] 1. This invention, by setting a connecting part, firstly connects connecting pipe one and connecting pipe two together, then respectively fits two connecting rings onto the outer wall of the joint of the two connecting pipes, keeping the hollow rod at the bottom. After the connecting rod passes through the two connecting rings in sequence, it is inserted into the hollow rod. During the insertion process, the connecting rod contacts the limiting rod and continuously pushes the rotating shaft outward, causing the limiting rod to slide along the inner slide rail of the hollow rod. When the limiting rod slides to the corresponding limiting groove position, it automatically engages in the limiting groove, completing the locking and fixing of the two connecting rings. This achieves the assembly and fixing of connecting pipe one and connecting pipe two, ensuring a tight and secure connection at the joint of the two connecting pipes, effectively preventing leakage at the pipe connection, ensuring the sealing of the medium such as cooling water, and the overall structure is easy to disassemble and assemble, allowing for quick unlocking and disassembly during subsequent maintenance.

[0014] 2. This invention, by setting a sealing part, allows the connecting pipe one to be started after the pipeline is fixed. Coolant flows into connecting pipe two and is delivered to the fixed shell. First, the sealing plate is pushed, squeezing spring two to contract it. The sealing plate slides to the outlet position with the thrust, and the coolant flows smoothly into the guide pipe through the outlet. When connecting pipe one stops running, the coolant thrust disappears, spring two automatically resets, and drives the sealing plate to reset synchronously, thus sealing the fixed shell, blocking the flow path of coolant to the guide pipe, and isolating external impurities from entering. This effectively prevents coolant backflow and waste. At the same time, sealing the fixed shell can prevent external impurities from entering, avoiding blockage of the guide pipe and subsequent cooling pipelines, and ensuring the cleanliness of the cooling medium and the stable operation of the cooling system.

[0015] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a partial cross-sectional view of the material discharge assembly of the present invention;

[0018] Figure 2 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 3 This is a partial cross-sectional view of the heat dissipation section of the present invention;

[0020] Figure 4 This is a partial cross-sectional view of the reset assembly of the present invention;

[0021] Figure 5 This is an exploded structural diagram of the connecting part of the present invention;

[0022] Figure 6 This is a partial cross-sectional view of the limiting component of the present invention;

[0023] Figure 7 For the present invention Figure 5 A magnified structural diagram of A in the middle.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] In the diagram: 1. Heat dissipation unit; 111. Outer shell; 112. Heat dissipation hole; 113. Guide pipe; 114. Motor; 115. Rotating shaft; 116. Fan blade; 117. Connecting pipe one; 2. Connecting part; 21. Mounting assembly; 211. Connecting pipe two; 212. Connecting ring; 213. Connecting rod; 214. Limiting groove; 215. Limiting rod; 22. Limiting assembly; 221. Hollow rod; 222. Slide rail; 223. Friction block; 224. Spring one; 3. Sealing part; 31. Discharge assembly; 311. Fixed shell; 312. Liquid outlet; 32. Reset assembly; 321. Slide rod; 322. Sealing plate; 323. Spring two. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figures 1-7 As shown, the present invention is a cooling device for a plastic injection molding machine, including a housing 111, and further including: a heat dissipation part 1, which is installed on the housing 111; a connecting part 2, two of which are provided, both of which are provided on the housing 111; and a sealing part 3, which is installed on the housing 111. The heat dissipation part 1 includes heat dissipation holes 112 opened on the housing 111. A guide pipe 113 is connected to the inner wall of the housing 111. A motor 114 is fixedly connected to the inner wall of the housing 111. The output shaft of the motor 114 is fixedly connected to a rotating shaft 115 through a coupling. A fan blade 116 is fixedly connected to the outer wall of the rotating shaft 115. Two connecting pipes 117 are provided on the right side of the housing 111. The connecting pipes 117 are adapted to the corresponding connecting pipes 211.

[0028] The connecting part 2 includes a mounting assembly 21, which is mounted on the outer shell 111; and a limiting assembly 22, which is mounted on the outer shell 111. The mounting assembly 21 includes a connecting pipe 211 located on the right side of the outer shell 111. The outer wall of the connecting pipe 211 has two connecting rings 212, through which a connecting rod 213 passes. The connecting rod 213 has several limiting grooves 214, and each limiting groove 214 has a limiting rod 215 that is adapted to the limiting groove 214. The limiting assembly 22 includes a hollow rod 221 sleeved on the outer wall of the connecting rod 213. The top of the hollow rod 221 contacts the connecting ring 212 located below. A slide rail 222 is fixedly connected to the outer wall of the hollow rod 221. Connected to the mounting component 21, a friction block 223 is slidably connected to the inner wall of the slide rail 222. An elastic element is provided inside the slide rail 222. The friction block 223 extends outside the slide rail 222. The side of the friction block 223 near the slide rail 222 is frosted. The elastic element includes a spring 224 set inside the limiting rod 215. The right side of the spring 224 is fixedly connected to the friction block 223, and the left side of the spring 224 is fixedly connected to the limiting rod 215. After installation, the spring 224 is in a stretched state. By setting the connecting part 2, it can be ensured that the connection between the two connecting pipes is tight and without loosening, effectively avoiding leakage at the pipe connection, ensuring the sealing of the medium such as cooling water, and the overall structure is easy to disassemble and assemble, and can be quickly unlocked and disassembled during subsequent maintenance.

[0029] The sealing section 3 includes a discharge assembly 31, which is mounted on the outer casing 111; and a reset assembly 32, which is also mounted on the outer casing 111. Both the discharge assembly 31 and the reset assembly 32 are located inside the guide tube 113. The discharge assembly 31 includes a fixed shell 311 fixedly connected to the inner wall of the guide tube 113. The fixed shell 311 has several liquid outlets 312 arranged in a circular array. The reset assembly 32 includes a sliding rod 321 fixedly connected to the inner wall of the liquid outlets 312. A sealing plate 322 is slidably connected to the outer wall of the sliding rod 321. The 311 is equipped with an elastic element 2. The sealing plate 322 and the fixed shell 311 are in a sealed state. The elastic element 2 includes a spring 323 sleeved on the outer wall of the slide rod 321. The right side of the spring 323 is fixedly connected to the sealing plate 322, and the left side of the spring 323 is fixedly connected to the fixed shell 311. During operation, the spring 323 is in a compressed state. By setting the sealing part 3, the backflow and waste of coolant are effectively prevented. At the same time, the sealed fixed shell can isolate the intrusion of external impurities, avoid the blockage of the guide pipe 113 and subsequent cooling pipes, and ensure the cleanliness of the cooling medium and the stable operation of the cooling system.

[0030] In use, firstly, connect pipe 117 and connecting pipe 211 must be installed together. During installation, connect pipe 117 and connecting pipe 211 together, then clip the two clips onto the outer walls of connecting pipe 117 and connecting pipe 211. At this point, place the hollow rod 221 below, and insert the connecting rod 213 through the two connecting rings 212 and into the hollow rod 221. Subsequently, the inserted connecting rod 213 will contact the limiting rod 215. With continuous insertion, the rotating shaft 1... 15 will be pushed outward by connecting rod 213. At this time, the limiting rod 215 will slide within the slide rail 222. After the limiting rod 215 passes through the corresponding limiting groove 214, it will slide back into the corresponding limiting groove 214. At this time, the two connecting rings 212 can be fixed. After the fixing is completed, connecting pipe one 117 can be started. At this time, the coolant will be discharged into connecting pipe two 211. After being discharged into connecting pipe two 211, it will enter the guide pipe 113 and then enter... The flow guide pipe 113 first pushes the sealing plate 322. After the sealing plate 322 is pushed, the spring 323 is compressed. As the sealing plate 322 slides, it slides to the outlet 312, at which point the coolant flows into the flow guide pipe 113 through the outlet 312. When the connecting pipe 117 stops running, the spring 323 returns to its original position, pushing the sealing plate 322 to return to its original position, thus achieving a sealing effect on the fixed shell 311. The coolant cannot flow into the guide pipe 113, and external impurities cannot flow in either. At this time, the coolant will move along the trajectory of the guide pipe 113. When the coolant is running, the motor 114 is started. The motor 114 will drive the shaft 115 and the fan blade 116 to rotate. When the fan blade 116 rotates, it will draw cold air from the outside into the heat dissipation part 1 through the heat dissipation hole 112 and dissipate heat from the guide pipe 113. In this way, the effect of cooling the coolant can be achieved.

[0031] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A cooling device for a plastic injection molding machine, comprising a housing (111), characterized in that, Also includes: Heat dissipation unit (1), which is mounted on the outer casing (111); There are two connecting parts (2), and both connecting parts (2) are provided on the outer shell (111); A sealing part (3) is installed on the outer casing (111); The connecting part (2) includes a mounting assembly (21) disposed on the housing (111); and A limiting component (22) is mounted on the housing (111); The mounting assembly (21) includes a connecting pipe two (211) disposed on the right side of the outer shell (111). The outer wall of the connecting pipe two (211) is provided with two connecting rings (212). A connecting rod (213) passes through the two connecting rings (212). A plurality of limiting grooves (214) are provided on the connecting rods (213). Limiting rods (215) are provided in the limiting grooves (214). The limiting rod (215) is adapted to the limiting groove (214).

2. The cooling device for a plastic injection molding machine according to claim 1, characterized in that, The heat dissipation part (1) includes heat dissipation holes (112) opened on the outer shell (111), the inner wall of the outer shell (111) is connected to a guide pipe (113), the inner wall of the outer shell (111) is fixedly connected to a motor (114), the output shaft of the motor (114) is fixedly connected to a rotating shaft (115) through a coupling, the outer wall of the rotating shaft (115) is fixedly connected to a fan blade (116), and two connecting pipes (117) are provided on the right side of the outer shell (111). Among them, connecting pipe one (117) is adapted to the corresponding connecting pipe two (211).

3. The cooling device for a plastic injection molding machine according to claim 2, characterized in that, The sealing part (3) includes a discharge assembly (31), which is mounted on the outer casing (111); and A reset assembly (32) is disposed on the housing (111); The discharge assembly (31) and the reset assembly (32) are both located inside the guide pipe (113).

4. The cooling device for a plastic injection molding machine according to claim 3, characterized in that, The limiting component (22) includes a hollow rod (221) sleeved on the outer wall of the connecting rod (213). The top of the hollow rod (221) is in contact with the connecting ring (212) located below. A slide rail (222) is fixedly connected to the outer wall of the hollow rod (221). The slide rail (222) is connected to the mounting component (21). A friction block (223) is slidably connected to the inner wall of the slide rail (222). An elastic element is provided inside the slide rail (222). Among them, the friction block (223) extends outside the slide rail (222), and the side of the friction block (223) near the slide rail (222) is sanded.

5. The cooling device for a plastic injection molding machine according to claim 4, characterized in that, The discharge assembly (31) includes a fixed shell (311) fixedly connected to the inner wall of the guide tube (113), and the fixed shell (311) has a plurality of liquid outlets (312). Among them, several liquid outlets (312) are distributed in a circular array.

6. The cooling device for a plastic injection molding machine according to claim 5, characterized in that, The reset assembly (32) includes a slide rod (321) fixedly connected to the inner wall of the outlet (312), a sealing plate (322) slidably connected to the outer wall of the slide rod (321), and an elastic element II provided inside the fixed shell (311). The sealing plate (322) and the fixed shell (311) are in a sealed state.

7. The cooling device for a plastic injection molding machine according to claim 6, characterized in that, The elastic element includes a spring (224) disposed inside the limiting rod (215). The right side of the spring (224) is fixedly connected to the friction block (223), and the left side of the spring (224) is fixedly connected to the limiting rod (215). Among them, after installation, spring 1 (224) is in a stretched state.

8. The cooling device for a plastic injection molding machine according to claim 7, characterized in that, The second elastic element includes a second spring (323) sleeved on the outer wall of the slide rod (321). The right side of the second spring (323) is fixedly connected to the sealing plate (322), and the left side of the second spring (323) is fixedly connected to the fixed shell (311). During operation, spring 2 (323) is in a compressed state.

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