Injection molding machine with sudden stop effect

Abstract

The invention discloses an injection molding machine with an emergency stop effect, which comprises a base, two side plates fixedly connected to the base, a mold assembly arranged between the two side plates, a mounting rack fixedly arranged on one side of the top of the base, a blanking hopper mounted on the mounting rack, a blanking pipe fixedly connected to the bottom of the blanking hopper, and a middle storage box arranged at the bottom of the blanking pipe, a feeding pipe is obliquely arranged on one side of the top of the middle storage box, although the whole process is in a continuous injection molding process, the temperature of a discharging area is separated from the temperature of a melting area, the state of materials in a discharging hopper cannot be affected in the continuous discharging process, production can be temporarily stopped, and only gas conveying of a fan needs to be stopped, so that the production efficiency is greatly improved. The whole work can be stopped after machining of residues in the middle storage pipe is completed, the situation of local solidification is avoided, the machining capacity of heating and melting equipment is very small, it is guaranteed that the working efficiency is not affected in the continuous machining process, and meanwhile the temporary pause effect is taken into account.

Description

Technical Field

[0001] The invention belongs to the technical field of injection molding machines, and in particular relates to an injection molding machine with an emergency stop effect. Background Art

[0002] Most traditional injection molding machines are centralized feeding and heating for conveying and injection molding, and cannot perform intermediate emergency termination. This will cause intermediate conveying to relieve the molten plastic from solidifying, resulting in equipment blockage and difficulty in cleaning, affecting production work. The patent number is 201811529449.1, and the invention name is: a patent for an injection molding machine includes a mold part, an injection part, a melt part and an ejector part; the mold part and the injection part are arranged on the front and rear sides of the same fixed plate, the injection part is installed on the base, and the melt part is installed on the top of the injection part; the mold part, the injection part and the melt part are connected to each other through a set of nozzle devices to transport the molten plastic in the melt tube to the storage cylinder, and inject the molten plastic in the storage cylinder into the mold part; the cavity depth of the fixed mold is greater than the cavity depth of the movable mold, so that the product after mold opening is retained on the fixed mold, and the ejector part is arranged at the rear end of the fixed plate to push the product retained in the fixed mold forward from the rear. The present invention is not only applicable to the manufacture of non-foamed plastic products, but also to the molding of foamed plastic products, and has the advantage of a wider range of applications. However, there is still a problem that its melting part is connected to the material hopper for unloading, resulting in the heating zone being connected to the storage area for material to be processed. This causes heat to be transmitted to the inside of the hopper, causing the material inside the hopper to become hot and softened to produce adhesion, making it difficult to unload the material. The part at the top of the hopper that is in contact with the air softens to form a mobile solidified layer. The entire process has a serious impact on unloading and does not take the actual situation into consideration, affecting production. Summary of the invention

[0003] The object of the present invention is to provide an injection molding machine with an emergency stop effect to solve the above-mentioned problems.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an injection molding machine with an emergency stop effect, comprising a base, two side plates are fixedly connected to the base, a mold assembly is arranged between the two side plates, a mounting frame is fixedly arranged on one side of the top of the base, a lower hopper is installed on the mounting frame, a lower hopper is fixedly connected to the bottom of the lower hopper with a lower pipe, an intermediate material storage box is arranged at the bottom of the lower pipe, a loading pipe is obliquely arranged on one side of the top of the intermediate material storage box, a heating and melting component is arranged on the top of the loading pipe, and one end of the heating and melting component extends to the top of the mold assembly for accurate material discharge of the mold assembly, a blowing component is arranged at the bottom of the intermediate material storage box, and the material guided from the lower hopper to the inside of the intermediate material storage box is input into the heating and melting component through the loading pipe by the blowing component, a mesh air outlet is arranged on the top of one end of the heating and melting component close to the lower hopper, and the hot air generated inside the heating and melting component and the gas input by the loading pipe are discharged through the mesh air outlet, and the heating and melting component is arranged obliquely downward from one end close to the lower hopper.

[0005] Preferably, the heating and melting component includes an intermediate storage pipe and a heating and melting device, and the diameter of the heating and melting device is smaller than the minimum inner diameter of the intermediate storage pipe, the mesh air outlet is opened on one side of the top of the intermediate storage pipe, the feeding pipe extends to one side of the bottom of the intermediate storage pipe and is connected to the intermediate storage pipe, a main shaft is arranged inside the heating and melting device, and one end of the main shaft passes through the intermediate storage pipe and extends out of one side of the intermediate storage pipe, the main shaft is movably connected to the intermediate storage pipe through a bearing, one end of the main shaft extending out of the intermediate storage pipe is transmission-connected to a motor, a spiral blade for conveying the material heated and melted by the heating and melting device is arranged on the outside of the main shaft, and the spiral blade is arranged inside the heating and melting device and extends to a certain distance inside the intermediate storage pipe.

[0006] Preferably, one end of the heating and melting device is conically arranged and connected to an extension pipe, one end of the extension pipe extends to the upper end of the mold assembly for unloading, and a solenoid valve is arranged on the extension pipe.

[0007] Preferably, the mold assembly includes mold one and mold two, an electric cylinder is fixedly connected between mold one and a side plate away from one end of the heating and melting device, mold two is fixedly connected to the other side plate, and one end of the extension pipe extends to the mold material injection hole at the top of mold two.

[0008] Preferably, the mold 2 includes an outer shell fixedly connected to the side plate, an inner cavity is opened inside the outer shell, a metal movable plate is slidably arranged inside the inner cavity, and extension holes are arranged on the metal movable plate and the outer shell, a limit assembly is slidably arranged inside the extension hole, and the limit assembly extends to a limit hole arranged inside the mold 2 for inserting a limit rod.

[0009] Preferably, the length of the metal movable plate is shorter than the inner diameter of the inner cavity so that the metal movable plate can slide left and right inside the inner cavity. A magnet is fixedly connected to one side of the inner cavity and the metal movable plate is moved by adsorbing the magnet. A touch switch is provided on one side of the magnet and the touch switch is triggered by the adsorbed metal movable plate. An external central processing unit is provided between the touch switch and the solenoid valve and the solenoid valve is started by triggering the touch switch.

[0010] Preferably, the limit assembly includes a spring fixedly connected to the inner wall of the shell, one side of the spring is fixedly connected to the limit block, one end of the limit block extends to a limit hole provided inside the second mold for the limit rod to be inserted, one side of the limit block is provided with a trapezoidal limit groove and after the limit block is pressed by the limit rod, the suction force of the magnet is used to drive the metal moving plate to slide into the trapezoidal limit groove to form a movement of a certain distance and trigger the touch switch.

[0011] Preferably, the blowing assembly includes a fan arranged on the top of the base, the air outlet pipe of the fan is fixedly connected to the bottom of the intermediate storage box and is placed in the vertical direction of the bottom end of the loading pipe to blow air into the material inside the intermediate storage box to drive the material from the loading pipe to the inside of the intermediate storage pipe.

[0012] Preferably, a mounting plate is provided on the mounting frame, and the motor is mounted on the mounting plate.

[0013] The technical effects and advantages of the present invention are as follows: the material is conveyed to the interior of the intermediate storage tube by the blowing of the fan, and the material is slid into the heating and melting device by the inclined setting of the intermediate storage tube and the heating and melting device, and the material is heated and melted by the heating and melting device to soften it in a molten state, and the main shaft and the spiral blades are driven by the start of the motor to rotate and convey the material in the molten state. During this period, the blowing of the fan will eventually merge with the heated gas inside the heating and melting device and then be discharged from the mesh air outlet. Although the whole process is in a continuous injection molding process, the temperature of the material discharge area and the melting area are separated. The material state in the material discharge hopper will not be affected during the continuous material discharge process, but the temporary termination of production can be achieved. It only needs to stop the gas delivery of the fan, and the entire work can be stopped after the residual processing inside the intermediate storage tube is completed, and local solidification will not occur. In addition, the processing capacity of the heating and melting device is very small, which ensures that the continuous processing process does not affect the work efficiency while taking into account the effect of temporary suspension, which is more convenient and increases the emergency effect. 2. By using the electric cylinder to push mold 1 and mold 2 to close, when dust or incomplete demolding occurs, the limit rod is set. Once there is residue or too much dust that causes mold 1 and mold 2 to not be completely closed, the four limit rods cannot be completely pushed into the extension hole, that is, the limit assembly cannot be completely pushed to the optimal position, so that the metal moving plate cannot achieve complete left and right movement, that is, the touch switch cannot be triggered, so that the material can be stopped when mold 1 and mold 2 cannot be completely closed. The whole process has a high degree of automation, and work can be stopped immediately in case of an accident to ensure production safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the present invention.

[0015] Figure 2 For the present invention Figure 1 A partial enlarged view of part A in the middle.

[0016] Figure 3 For the present invention Figure 1 A partial enlarged view of part B in the middle.

[0017] Figure 4 It is a schematic diagram of the internal structure of the present invention.

[0018] Figure 5 It is an exploded view of the heating and melting component of the present invention.

[0019] Figure 6 It is an exploded view of the second part of the mold of the present invention.

[0020] Figure 7 It is a schematic diagram of the structure of the limiting component of the present invention.

[0021] In the figure: 1. base; 2. intermediate material storage pipe; 4. electric cylinder; 5. side plate; 6. heating and melting assembly; 7. lower hopper; 8. mounting frame; 9. solenoid valve; 10. extension pipe; 11. limit rod; 12. mold one; 13. mold two; 1301. metal moving plate; 1302. limit assembly; 1303. touch switch; 1304. shell; 1305. inner cavity; 1306. extension hole; 1307. magnet; 1308. spring; 1309. limit block; 1310. trapezoidal limit groove; 14. heating and melting equipment; 15. mounting plate; 16. spindle; 17. motor; 18. intermediate material storage box; 19. fan; 20. spiral blade; 21. mesh air outlet; 22. lower material pipe; 23. upper material pipe. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] The present invention provides Figure 1-Figure 7 The injection molding machine with emergency stop effect shown in the figure comprises a base 1, two side plates 5 are fixedly connected to the base 1, a mold assembly is arranged between the two side plates 5, a mounting frame 8 is fixedly arranged on one side of the top of the base 1, a lower hopper 7 is installed on the mounting frame 8, a lower feed pipe 22 is fixedly connected to the bottom of the lower hopper 7, an intermediate material storage box 18 is arranged at the bottom of the lower feed pipe 22, a top side of the intermediate material storage box 18 is inclinedly arranged with a feed pipe 23, a heating and melting component 6 is arranged on the top of the feed pipe 23, and one end of the heating and melting component 6 extends to The mold assembly is accurately discharged at the top of the mold assembly, and a blowing assembly is provided at the bottom of the intermediate storage box 18. The material guided from the lower hopper 7 to the inside of the intermediate storage box 18 is input into the heating and melting assembly 6 through the feeding pipe 23 by the blowing assembly. A mesh air outlet 21 is provided at the top of one end of the heating and melting assembly 6 close to the lower hopper 7, and the hot air generated inside the heating and melting assembly 6 and the gas input from the feeding pipe 23 are discharged through the mesh air outlet 21. The heating and melting assembly 6 is arranged obliquely downward from the end close to the lower hopper 7.

[0024] Specifically, the heating and melting component 6 includes an intermediate storage pipe 2 and a heating and melting device 14, and the diameter of the heating and melting device 14 is smaller than the minimum inner diameter of the intermediate storage pipe 2, the mesh air outlet 21 is opened on one side of the top of the intermediate storage pipe 2, the feeding pipe 23 extends to one side of the bottom of the intermediate storage pipe 2 and is connected to the intermediate storage pipe 2, a main shaft 16 is arranged inside the heating and melting device 14, and one end of the main shaft 16 passes through the intermediate storage pipe 2 and extends out of one side of the intermediate storage pipe 2, the main shaft 16 is movably connected to the intermediate storage pipe 2 through a bearing, and one end of the main shaft 16 extending out of the intermediate storage pipe 2 is transmission-connected to a motor 17, and a spiral blade 20 for conveying the material heated and melted by the heating and melting device 14 is arranged on the outside of the main shaft 16, and the spiral blade 20 is arranged inside the heating and melting device 14 and extends to a certain distance inside the intermediate storage pipe 2.

[0025] Specifically, one end of the heating and melting device 14 is conically arranged and connected to an extension pipe 10 . One end of the extension pipe 10 extends to the upper end of the mold assembly for unloading. The extension pipe 10 is provided with a solenoid valve 9 .

[0026] Specifically, the mold assembly includes mold 1 12 and mold 2 13. An electric cylinder 4 is fixedly connected between mold 12 and a side plate 5 at one end away from the heating and melting device 14. Mold 2 13 is fixedly connected to another side plate 5. One end of the extension pipe 10 extends to the mold material injection hole at the top of mold 2 13.

[0027] Specifically, the mold 2 13 includes an outer shell 1304 fixedly connected to the side plate 5, an inner cavity 1305 is opened inside the outer shell 1304, a metal movable plate 1301 is slidably arranged inside the inner cavity 1305, and an extension hole 1306 is provided on the metal movable plate 1301 and the outer shell 1304. A limit assembly 1302 is slidably arranged inside the extension hole 1306, and the limit assembly 1302 extends to a limit hole set inside the mold 2 13 for inserting the limit rod 11.

[0028] Specifically, the length of the metal movable plate 1301 is shorter than the inner diameter of the inner cavity 1305, so that the metal movable plate 1301 can slide left and right inside the inner cavity 1305. A magnet 1307 is fixedly connected to one side of the inner cavity 1305 and the metal movable plate 1301 is moved by adsorbing the magnet 1307. A touch switch 1303 is provided on one side of the magnet 1307 and the touch switch 1303 is triggered by the adsorbed metal movable plate 1301. An external central processing unit is provided between the touch switch 1303 and the solenoid valve 9 and the solenoid valve 9 is started by triggering the touch switch 1303.

[0029] Specifically, the limit assembly 1302 includes a spring 1308 fixedly connected to the inner wall of the shell 1304, one side of the spring 1308 is fixedly connected to a limit block 1309, one end of the limit block 1309 extends to a limit hole provided inside the mold 13 for the limit rod 11 to be inserted, a trapezoidal limit groove 1310 is provided on one side of the limit block 1309, and after the limit block 1309 is pressed by the limit rod 11, the suction force of the magnet 1307 is used to drive the metal moving plate 1301 to slide into the trapezoidal limit groove 1310 to form a movement of a certain distance and trigger the touch switch 1303.

[0030] Specifically, the blowing assembly includes a fan 19 arranged on the top of the base 1, the air outlet pipe of the fan 19 is fixedly connected to the bottom of the intermediate storage box 18 and is placed in the vertical direction of the bottom end of the loading pipe 23 to blow air into the material inside the intermediate storage box 18, driving the material to be transported from the loading pipe 23 to the inside of the intermediate storage pipe 2.

[0031] Specifically, a mounting plate 15 is provided on the mounting frame 8 , and the motor 17 is mounted on the mounting plate 15 .

[0032] Working principle: When using the present invention, the required material is placed in the lower hopper 7, and then falls into the middle storage box 18, and is transported to the middle storage pipe 2 by the blowing of the fan 19, and is slid into the heating and melting device 14 by the inclined setting of the middle storage pipe 2 and the heating and melting device 14, and the heating and melting device 14 heats and melts the material to soften it in a molten state, and the motor 17 is started to drive the main shaft 16 and the spiral blade 20 to rotate and transport the molten material, during which the blowing of the fan 19 will eventually contact the heating and melting device 14. The heated gases are combined and discharged from the mesh air outlet 21. Although the whole process is in a continuous injection molding process, the temperature of the material discharge area and the melting area is separated. The material state in the material discharge hopper 7 will not be affected during the continuous material discharge process, but the temporary termination of production can be achieved. It is only necessary to stop the gas delivery of the fan 19 and the entire work can be stopped after the residual processing inside the intermediate storage tube 2 is completed. There will be no local solidification. In addition, the processing capacity of the heating and melting equipment 14 is very small. While ensuring that the continuous processing process does not affect the work efficiency, it also takes into account the effect of temporary suspension, which is more convenient and increases the emergency effect. pass Figure 2 , 4 , 6 and Figure 7 As shown, the extension pipe 10 is used to discharge material between mold 1 12 and mold 2 13, and the electric cylinder 4 is used in advance to push mold 12 and mold 2 13 to close. When dust or incomplete demoulding occurs, the limit rod 11 is set. Once there is residue or too much dust that causes the inability to completely close between mold 12 and mold 2 13, the four limit rods 11 cannot be completely pushed into the extension hole 1306, that is, the limit assembly 1302 cannot be completely pushed to the optimal position so that the metal movable plate 1301 cannot achieve complete left and right movement, that is, the touch switch 1303 cannot be triggered, so that the material discharge can be stopped when the mold 1 12 and mold 2 13 cannot be completely closed. The whole process has a high degree of automation, and work can be stopped immediately in case of an accident to ensure production safety.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An injection molding machine with an emergency stop effect, comprising a base (1), two side plates (5) being fixedly connected to the base (1), a mold assembly being arranged between the two side plates (5), and characterized in that: A mounting frame (8) is fixedly provided on one side of the top of the base (1), a material hopper (7) is installed on the mounting frame (8), a material hopper (22) is fixedly connected to the bottom of the material hopper (7), an intermediate material storage box (18) is provided at the bottom of the material hopper (22), a material loading pipe (23) is obliquely provided on one side of the top of the intermediate material storage box (18), a heating and melting component (6) is provided on the top of the material loading pipe (23), and one end of the heating and melting component (6) extends to the top of the mold component to accurately discharge the mold component, and the intermediate material storage box (18) is provided on the top of the intermediate material storage box (18). A blowing assembly is provided at the bottom of the material box (18), and the material directed from the lower hopper (7) to the interior of the intermediate material storage box (18) is input into the heating and melting assembly (6) through the feeding pipe (23) by means of the blowing assembly. A mesh air outlet (21) is provided at the top of one end of the heating and melting assembly (6) close to the lower hopper (7), and hot air generated inside the heating and melting assembly (6) and gas input from the feeding pipe (23) are discharged through the mesh air outlet (21). The heating and melting assembly (6) is arranged obliquely downward from one end close to the lower hopper (7).

2. The injection molding machine with emergency stop effect according to claim 1, characterized in that: The heating and melting assembly (6) comprises an intermediate material storage pipe (2) and a heating and melting device (14), wherein the diameter of the heating and melting device (14) is smaller than the minimum inner diameter of the intermediate material storage pipe (2), the mesh air outlet (21) is opened on one side of the top of the intermediate material storage pipe (2), the feeding pipe (23) extends to one side of the bottom of the intermediate material storage pipe (2) and is connected to the intermediate material storage pipe (2), the heating and melting device (14) is provided with a main shaft (16) inside, and one end of the main shaft (16) passes through the intermediate material storage pipe (2). The material pipe (2) extends out of one side of the intermediate material storage pipe (2); the main shaft (16) is movably connected to the intermediate material storage pipe (2) via a bearing; one end of the main shaft (16) extending out of the intermediate material storage pipe (2) is transmission-connected to a motor (17); a spiral blade (20) for conveying material heated and melted by the heating and melting device (14) is arranged on the outside of the main shaft (16); and the spiral blade (20) is arranged inside the heating and melting device (14) and extends to a certain distance inside the intermediate material storage pipe (2).

3. The injection molding machine with emergency stop effect according to claim 2, characterized in that: One end of the heating and melting device (14) is arranged in a conical shape and is connected to an extension pipe (10); one end of the extension pipe (10) extends to the upper end of the mold assembly for material discharge; and a solenoid valve (9) is arranged on the extension pipe (10).

4. The injection molding machine with emergency stop effect according to claim 3, characterized in that: The mold assembly comprises a mold 1 (12) and a mold 2 (13); an electric cylinder (4) is fixedly connected between the mold 1 (12) and a side plate (5) at one end away from the heating and melting device (14); the mold 2 (13) is fixedly connected to the other side plate (5); and one end of the extension pipe (10) extends to a mold material injection hole at the top of the mold 2 (13).

5. The injection molding machine with emergency stop effect according to claim 4, characterized in that: The second mold (13) comprises a shell (1304) fixedly connected to the side plate (5), the shell (1304) has an inner cavity (1305) formed therein, a metal movable plate (1301) is slidably arranged inside the inner cavity (1305), the metal movable plate (1301) and the shell (1304) are both provided with extension holes (1306), a limit assembly (1302) is slidably arranged inside the extension hole (1306), and the limit assembly (1302) extends to a limit hole provided inside the second mold (13) for inserting a limit rod (11) therein.

6. The injection molding machine with emergency stop effect according to claim 5, characterized in that: The length of the metal moving plate (1301) is shorter than the inner diameter of the inner cavity (1305) so that the metal moving plate (1301) can slide left and right inside the inner cavity (1305); a magnet (1307) is fixedly connected to one side of the inner cavity (1305) and the metal moving plate (1301) is moved by adsorbing the magnet (1307); a touch switch (1303) is arranged on one side of the magnet (1307) and the touch switch (1303) is triggered by the adsorbed metal moving plate (1301); an external central processing unit is arranged between the touch switch (1303) and the electromagnetic valve (9) and the electromagnetic valve (9) is activated by the triggering of the touch switch (1303).

7. The injection molding machine with emergency stop effect according to claim 6, characterized in that: The limit assembly (1302) comprises a spring (1308) fixedly connected to the inner wall of the housing (1304); one side of the spring (1308) is fixedly connected to a limit block (1309); one end of the limit block (1309) extends to a limit hole provided inside the second mold (13) for the limit rod (11) to be inserted; one side of the limit block (1309) is provided with a trapezoidal limit groove (1310); after the limit block (1309) is pressed by the limit rod (11), the metal moving plate (1301) is driven by the suction force of the magnet (1307) to slide into the trapezoidal limit groove (1310) to form a movement of a certain distance and trigger the touch switch (1303).

8. The injection molding machine with emergency stop effect according to claim 1, characterized in that: The air blowing assembly comprises a fan (19) arranged on the top of the base (1), the air outlet pipe of the fan (19) being fixedly connected to the bottom of the intermediate material storage box (18) and being arranged in a vertical direction at the bottom of the feeding pipe (23) to blow air into the material inside the intermediate material storage box (18), thereby driving the material to be transported from the feeding pipe (23) to the inside of the intermediate material storage pipe (2).

9. The injection molding machine with emergency stop effect according to claim 2, characterized in that: A mounting plate (15) is provided on the mounting frame (8), and the motor (17) is mounted on the mounting plate (15).

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