A high-precision automatic injection device with heating

Abstract

This utility model relates to the field of polymer material modification and processing technology, and in particular to a high-precision automatic injection device with heating, comprising: a temperature control device and a storage tank; a jacket is disposed on the outside of the storage tank, and a heating jacket is formed between the jacket and the outer wall of the storage tank; a circulating oil circuit is provided between the temperature control device and the heating jacket; a discharge mechanism is connected to the outlet of the storage tank, and an auxiliary heating pipe is also installed on the discharge mechanism. In this utility model, by designing a heating jacket on the outside of the storage tank, the oil circuit is circulated by the temperature control device to achieve the purpose of heating the storage tank. When a low-temperature fusible solid material is added to the storage tank, it is heated and melted by heat transfer oil to form a liquid, and then the liquid raw material is injected into the processing equipment by the discharge mechanism, making continuous production simpler.

Description

Technical Field

[0001] This utility model relates to the field of polymer material modification and processing technology, and in particular to a high-precision automatic injection device with heating. Background Technology

[0002] In the field of polymer material modification technology, adding low-temperature fusible solid materials to other materials for composite modification is a common method to improve the comprehensive performance of polymer materials. Currently, the conventional operation method is to weigh, mix, and unload the low-temperature fusible solid materials and other materials to be modified, and then send them to the processing equipment for processing.

[0003] However, this traditional operating method involves a series of cumbersome steps such as weighing, mixing, and unloading, which increases the complexity and time cost of the production process and reduces production efficiency. Secondly, during the weighing, mixing, and unloading process, the powdery low-temperature fusible solid material is prone to generating dust, which not only pollutes the production environment but may also endanger the health of the operators.

[0004] Based on this, in order to improve the convenience of the conveying and injection process of fixed raw materials, we propose a high-precision automatic injection device with heating. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the tendency of solid materials to generate dust, and to propose a high-precision automatic injection device with heating.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a high-precision automatic injection device with heating, including:

[0008] Temperature control device and storage tank;

[0009] A jacket is disposed on the outside of the storage tank, and a heating jacket is formed between the jacket and the outer wall of the storage tank;

[0010] A circulating oil circuit is provided between the temperature control device and the heating jacket, and a discharge mechanism is connected to the outlet of the storage tank. An auxiliary heating pipeline is also installed on the discharge mechanism.

[0011] Furthermore, the circulating oil circuit includes an oil outlet pipe connected to the output end of the temperature control device, and the oil outlet pipe is connected to the lower part of the heating jacket.

[0012] The heating jacket is connected to an oil return pipe above it, and the oil return pipe is connected to the oil return end of the temperature control device.

[0013] Furthermore, the discharge mechanism includes a discharge pipe connected to the discharge port of the storage tank, and the other end of the discharge pipe is connected to a metering pump;

[0014] The output end of the metering pump is connected to an injection pipe.

[0015] Furthermore, the auxiliary heating pipeline includes:

[0016] A first sleeve is fitted over the outside of the discharge pipe, and both ends of the first sleeve are sealed to the outer wall of the discharge pipe;

[0017] And a second sleeve fitted outside the injection tube, the two ends of the second sleeve being sealed to the outer wall of the injection tube;

[0018] An interlayer oil passage is formed between the first sleeve and the discharge pipe, and between the second sleeve and the injection pipe.

[0019] Furthermore, the first sleeve and the second sleeve are connected by a connecting pipe;

[0020] One end of the first sleeve is connected to the oil outlet pipe via an oil outlet branch pipe and valve one, and the second sleeve is connected to the oil return pipe via a return oil branch pipe.

[0021] Furthermore, the storage tank includes a tank body and a tank lid, the tank lid being detachably connected to the tank body, and a feeding port is provided at the upper end of the tank lid.

[0022] Furthermore, the storage tank also includes a stirring mechanism;

[0023] The stirring mechanism includes a motor fixed to the can lid, with the motor shaft extending through and to the bottom of the can lid, and a stirring rod connected to the motor shaft.

[0024] Furthermore, a bushing is fixedly installed on the shaft end of the motor, and the top of the stirring rod is inserted into the inside of the bushing;

[0025] A pin is inserted between the top of the stirring rod and the bushing, and a positioning glass bead is embedded on the outer side of the distal end of the pin, which stops on the outer side of the bushing.

[0026] Furthermore, the tank body includes a cylindrical section and a conical section;

[0027] The conical segment is formed on the lower side of the cylindrical segment, and the jacket has a barrel-shaped structure with a flat bottom.

[0028] Furthermore, a second valve is installed between the outlet of the storage tank and the discharge mechanism.

[0029] The present invention proposes a high-precision automatic injection device with heating, which has the following advantages: The present invention uses a heating jacket designed on the outside of the storage tank and uses a temperature control device to control the oil circulation to achieve the purpose of heating the storage tank. When a low-temperature fusible solid material is added to the storage tank, it is heated and melted by heat transfer oil to form a liquid. Then, the liquid raw material is injected into the processing equipment by the discharge mechanism, which makes continuous production simpler. Since there is no need to weigh and mix the solid raw material, the dust problem can be greatly avoided, thereby improving the cleanliness of the working environment.

[0030] Secondly, this utility model also adds an auxiliary heating pipeline design to the discharge mechanism. When the discharge mechanism is discharging material, it can also reheat the raw material, so that the liquid raw material always remains in a flowable liquid state during the conveying and injection process, thereby achieving the effect of preventing solidification. Attached Figure Description

[0031] Figure 1 The three-dimensional representation of this utility model Figure 1 ;

[0032] Figure 2 The three-dimensional representation of this utility model Figure 2 ;

[0033] Figure 3 This is the front view of the present invention;

[0034] Figure 4 This is a schematic diagram of the sandwiched oil passage structure of this utility model;

[0035] Figure 5 This is a schematic diagram of the tank structure of this utility model.

[0036] In the diagram: 1. Temperature control device; 2. Storage tank; 20. Jacket; 21. Heating jacket; 22. Tank body; 221. Cylindrical section; 222. Conical section; 23. Tank cover; 24. Feed port; 25. Stirring mechanism; 251. Motor; 252. Stirring rod; 253. Bushing; 254. Pin; 255. Positioning glass bead; 26. Valve II; 3. Circulating oil circuit; 31. Oil outlet pipe; 32. Oil return pipe; 4. Discharge mechanism; 41. Discharge pipe; 42. Metering pump; 43. Injection pipe; 5. Auxiliary heating pipeline; 51. First sleeve; 52. Second sleeve; 53. Jacket oil passage; 54. Connecting pipe; 55. Oil outlet branch pipe; 56. Valve I; 57. Oil return branch pipe. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0038] Reference Figure 1-5 As one embodiment of this utility model, a high-precision automatic injection device with heating is disclosed. This injection device is used for injecting low-temperature fusible materials to facilitate material metering and ensure the stability of the produced products.

[0039] Specifically, the injection device includes a temperature control device 1 and a storage tank 2. In this embodiment, the temperature control device 1 is set as an oil circulation mold temperature controller. The oil circulation mold temperature controller mainly consists of three parts: a heating system, a circulation system, and a control system. The heating system transfers heat energy to the heat transfer oil in the oil tank through a heater, thereby raising the temperature of the heat transfer oil. Secondly, the circulation system supplies the heated heat transfer oil to the outside through a circulation pump and then returns it to the oil tank. The specific principle is a conventional method for those skilled in the art and will not be elaborated here.

[0040] A jacket 20 is disposed on the outside of the storage tank 2, and a heating jacket 21 is formed between the jacket 20 and the outer wall of the storage tank 2;

[0041] A circulating oil circuit 3 is provided between the temperature control device 1 and the heating jacket 21. A discharge mechanism 4 is connected to the outlet of the storage tank 2. An auxiliary heating pipe 5 is also installed on the discharge mechanism 4.

[0042] In other words, this utility model adopts a heating jacket 21 designed on the outside of the storage tank 2, and uses the temperature control device 1 to control the oil circulation to achieve the purpose of heating the storage tank 2. When a low-temperature fusible solid material is added to the storage tank 2, it is heated and melted by heat transfer oil to form a liquid. Then, the liquid raw material is injected into the processing equipment by the discharge mechanism 4, making continuous production simpler.

[0043] Secondly, this utility model also adds an auxiliary heating pipe 5 to the discharge mechanism 4. When the discharge mechanism 4 is discharging material, it can also heat the raw material a second time, so that the liquid raw material can always remain in a flowable liquid state during the conveying and injection process, so as to achieve the effect of preventing solidification.

[0044] Furthermore, in this embodiment, a vacuum interface and / or a nitrogen interface can be configured on the top of the storage tank 2. The vacuum interface can be used to connect a vacuum pump to achieve a vacuuming operation inside the storage tank 2. Of course, the nitrogen interface is used to fill the storage tank 2 with nitrogen. The nitrogen can displace the oxygen in the storage tank 2, thereby playing the role of inert gas protection.

[0045] In some embodiments, the circulating oil circuit 3 of the present invention includes an oil outlet pipe 31 connected to the output end of the temperature control device 1, and the oil outlet pipe 31 is connected to the lower part of the heating jacket 21.

[0046] The heating jacket 21 is connected to a return oil pipe 32 above it. The return oil pipe 32 is connected to the return oil end of the temperature control device 1. That is, the heated heat transfer oil is injected into the interior of the heating jacket 21 through the oil outlet pipe 31 by the temperature control device 1 to achieve the heating effect on the interior of the storage tank 2, so that the solid raw materials inside melt into liquid. When the oil rises to the height of the return oil pipe 32, it flows back to the temperature control device 1 through the return oil pipe 32 for circulation heating. This cycle is repeated to achieve continuous heating of the interior of the storage tank 2 and ensure the melting effect of the solid raw materials.

[0047] Furthermore, in this embodiment, the discharge mechanism 4 includes a discharge pipe 41 connected to the discharge port of the storage tank 2, and the other end of the discharge pipe 41 is connected to a metering pump 42.

[0048] The output end of the metering pump 42 is connected to the injection pipe 43. In this embodiment, the metering pump 42 is designed to achieve quantitative output of liquid raw materials, thus achieving a high-precision raw material injection effect.

[0049] Furthermore, since this embodiment uses a method of directly heating the solid raw materials and then quantitatively injecting the liquid, there is no need to weigh and mix the solid raw materials, which can greatly avoid dust problems and improve the cleanliness of the working environment.

[0050] Of course, in order to achieve convenient control of the material discharge from the storage tank 2, a second valve 26 is also installed between the discharge port of the storage tank 2 and the discharge mechanism 4 in this embodiment. The second valve 26 is installed between the discharge port of the storage tank 2 and the discharge pipe 41. During the hot melting process, the second valve 26 is kept closed to prevent the liquid raw material from flowing out. When it is necessary to discharge the liquid raw material, the second valve 26 is opened. At this time, the liquid raw material flows into the discharge pipe 41 and is then injected into the processing equipment through the metering pump 42. Other raw materials can be directly added to the processing equipment according to the proportion.

[0051] Based on the above embodiments, the auxiliary heating pipeline 5 in this embodiment includes:

[0052] A first sleeve 51 is fitted outside the discharge pipe 41, and both ends of the first sleeve 51 are sealed to the outer wall of the discharge pipe 41.

[0053] And a second sleeve 52 sleeved outside the injection tube 43, the two ends of the second sleeve 52 being sealed to the outer wall of the injection tube 43;

[0054] In this embodiment, an interlayer oil channel 53 is formed between the first sleeve 51 and the discharge pipe 41, and between the second sleeve 52 and the injection pipe 43. Of course, the interlayer oil channel 53 described in this embodiment is also for the flow of heat transfer oil.

[0055] In order to achieve the oil circuit connection of the auxiliary heating pipe 5, in this embodiment the first sleeve 51 and the second sleeve 52 are connected by a connecting pipe 54;

[0056] One end of the first sleeve 51 is connected to the oil outlet pipe 31 through the oil outlet branch pipe 55 and valve 56, and the second sleeve 52 is connected to the oil return pipe 32 through the oil return branch pipe 57.

[0057] That is, during the process of hot melting of solid raw materials, the valve 56 mentioned above can be kept closed. At this time, all heat transfer oil will flow into the heating jacket 21 to improve the heating efficiency of the storage tank 2.

[0058] During discharge, valve 56 is opened, and some heat transfer oil will enter the interior of the first sleeve 51 along the oil outlet branch pipe 55 to heat the discharge pipe 41.

[0059] Meanwhile, the heat transfer oil flows along the inside of the first sleeve 51 and then through the connecting pipe 54 to the inside of the second sleeve 52, thereby heating the injection pipe 43. This ensures continuous heating of the liquid raw material discharge path to prevent it from solidifying at low temperature during the discharge process and causing poor flow.

[0060] Finally, the heat transfer oil inside the second sleeve 52 flows back to the return oil pipe 32 through the return oil branch pipe 57 and enters the temperature control device 1 for circulation.

[0061] Of course, the valve 56 and valve 26 described in this embodiment can be manual or electric. Both manual and electric valves are commonly used valve control devices by those skilled in the art, and can be selected according to requirements. They will not be elaborated on here.

[0062] In some embodiments, the storage tank 2 of this utility model includes a tank body 22 and a tank cover 23. The tank cover 23 is detachably connected to the tank body 22. A feeding port 24 is also provided at the upper end of the tank cover 23. The feeding port 24 is used to add solid raw materials. Of course, an exhaust port, a temperature controller and other structures can also be provided on the tank cover 23 for heating exhaust and temperature detection. In addition, the tank cover 23 in this embodiment can be connected to the tank body 22 by fasteners such as bolts, so that the tank cover 23 can be disassembled later to facilitate convenient cleaning and maintenance of the inside of the tank body 22.

[0063] Preferably, the storage tank 2 in this embodiment further includes a stirring mechanism 25;

[0064] The stirring mechanism 25 includes a motor 251 fixed on the can lid 23. The shaft end of the motor 251 passes through and extends to the bottom of the can lid 23. A stirring rod 252 is connected to the shaft end of the motor 251. That is, the stirring rod 252 is driven by the motor 251 to rotate and stir inside the can body 22 to improve the hot melting efficiency of solid raw materials. Of course, in this embodiment, the stirring rod 252 is composed of a rod and stirring blades.

[0065] Specifically, in this embodiment, the stirring mechanism 25 is used to stir the hot-melt solid raw material. It can not only improve the hot-melt efficiency of the solid raw material, but also remove the gas inside the solid raw material during the heating process, ensuring that the liquid raw material is free of bubbles, thereby improving the accuracy of subsequent quantitative delivery.

[0066] Furthermore, in this embodiment, a bushing 253 is fixedly installed on the shaft end of the motor 251, and the top of the stirring rod 252 is inserted into the inside of the bushing 253;

[0067] A pin 254 is inserted between the top of the stirring rod 252 and the bushing 253. A positioning glass bead 255 is embedded on the outer side of the distal end of the pin 254. The positioning glass bead 255 stops on the outer side of the bushing 253. That is, the stirring rod 252 in this embodiment is detachable. After long-term use, the positioning glass bead 255 can be retracted by pressing its telescopic end, and then the pin 254 can be removed. At this time, the bushing 253 and the stirring rod 252 can be separated, thus achieving the purpose of convenient disassembly and maintenance of the stirring rod 252.

[0068] It should be noted that the tank 22 in this embodiment includes a cylindrical section 221 and a conical section 222; the conical section 222 is formed on the lower side of the cylindrical section 221. The design of the conical section 222 can ensure that there are no dead corners when the liquid raw materials are discharged, so as to improve the discharge effect.

[0069] The jacket 20 has a barrel-shaped structure with a flat bottom. Since the bottom of the jacket 20 is flat, the space between its bottom and the conical section 222 is the largest, so the raw material at the conical section 222 can be well melted to further improve the discharge effect of liquid raw materials.

[0070] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high precision automatic injection device with heating, characterized in that, include: Temperature control device (1) and storage tank (2); A jacket (20) is disposed on the outside of the storage tank (2), and a heating jacket (21) is formed between the jacket (20) and the outer wall of the storage tank (2). A circulating oil circuit (3) is provided between the temperature control device (1) and the heating jacket (21). A discharge mechanism (4) is connected to the outlet of the storage tank (2). An auxiliary heating pipeline (5) is also installed on the discharge mechanism (4).

2. A high precision automatic injection device with heating according to claim 1, characterized in that: The circulating oil circuit (3) includes an oil outlet pipe (31) connected to the output end of the temperature control device (1), and the oil outlet pipe (31) is connected to the bottom of the heating jacket (21); The heating jacket (21) is connected to an oil return pipe (32) above it, and the oil return pipe (32) is connected to the oil return end of the temperature control device (1).

3. A high precision automatic injection device with heating according to claim 2, characterized in that: The discharge mechanism (4) includes a discharge pipe (41) connected to the discharge port of the storage tank (2), and the other end of the discharge pipe (41) is connected to a metering pump (42). The output end of the metering pump (42) is connected to an injection pipe (43).

4. A high precision automatic injection device with heating according to claim 3, characterized in that: The auxiliary heating pipeline (5) includes: A first sleeve (51) is fitted outside the discharge pipe (41), and both ends of the first sleeve (51) are sealed to the outer wall of the discharge pipe (41); And a second sleeve (52) sleeved outside the injection tube (43), the two ends of the second sleeve (52) being sealed to the outer wall of the injection tube (43); A sandwiched oil passage (53) is formed between the first sleeve (51) and the discharge pipe (41) and between the second sleeve (52) and the injection pipe (43).

5. A high-precision automatic injection device with heating according to claim 4, characterized in that: The first sleeve (51) and the second sleeve (52) are connected by a connecting pipe (54); One end of the first sleeve (51) is connected to the oil outlet pipe (31) through the oil outlet branch pipe (55) and valve one (56), and the second sleeve (52) is connected to the oil return pipe (32) through the oil return branch pipe (57).

6. A high precision automatic injection device with heating as defined in claim 1, wherein: The storage tank (2) includes a tank body (22) and a tank cover (23). The tank cover (23) is detachably connected to the tank body (22), and a feeding port (24) is provided at the upper end of the tank cover (23).

7. A high precision automatic injection device with heating according to claim 6, characterized in that: The storage tank (2) also includes a stirring mechanism (25); The stirring mechanism (25) includes a motor (251) fixed on the can lid (23), the shaft end of the motor (251) passing through and extending to the bottom of the can lid (23), and a stirring rod (252) connected to the shaft end of the motor (251).

8. A high precision automatic injection device with heating according to claim 7, characterized in that: A bushing (253) is fixedly installed on the shaft end of the motor (251), and the top of the stirring rod (252) is inserted into the inside of the bushing (253); A pin (254) is inserted between the top of the stirring rod (252) and the bushing (253), and a positioning glass bead (255) is embedded on the outer side of the distal end of the pin (254), which stops on the outer side of the bushing (253).

9. A high precision automatic injection device with heating according to claim 6, characterized in that: The tank body (22) comprises a cylindrical section (221) and a conical section (222); The conical section (222) is formed on the lower side of the cylindrical section (221), and the jacket (20) is in the form of a barrel with a flat bottom.

10. A high precision automatic injection device with heating according to any one of claims 1-9, characterized in that: A valve (26) is further installed between the discharge port of the storage tank (2) and the discharge mechanism (4).

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