Energy-saving heat preservation device for gun barrel of injection molding machine

Abstract

The utility model relates to the technical field of energy conservation and heat preservation of injection molding machines, in particular to an energy-saving heat preservation device for a gun barrel of an injection molding machine, which comprises a vacuum heat preservation sleeve used for covering the outer part of a barrel body of the gun barrel of the injection molding machine, a front sealing cover arranged at the front end of the vacuum heat preservation sleeve, and a rear sealing cover arranged at the rear end of the vacuum heat preservation sleeve, an energy-saving heat preservation cavity is defined by the front sealing cover, the vacuum heat preservation sleeve and the rear sealing cover; the vacuum heat insulation device is additionally arranged on the injection molding machine gun barrel, heat emitted by the injection molding machine gun barrel can be well wrapped through matching of the sealing cover vacuum layer of the front sealing cover, the heat insulation sleeve vacuum layer of the vacuum heat insulation sleeve and the sealing cover heat reflection heat insulation layer of the rear sealing cover, and heat insulation and heat insulation can be well carried out on the injection molding machine gun barrel. Heat loss can be reduced, heating efficiency can be improved, shutdown can be performed when the injection molding machine is not used temporarily, energy consumption can be reduced, the peripheral temperature of a gun barrel of the injection molding machine can be reduced, the working environment temperature of operators can be prevented from being too high, and the operators feel more comfortable.

Description

Technical field:

[0001] The utility model relates to the technical field of energy-saving and heat-insulating technology for injection molding machines, in particular to an energy-saving and heat-insulating device for a barrel of an injection molding machine. Background technology:

[0002] Injection molding machine is also called injection molding machine or injection machine. It is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. It is divided into vertical, horizontal and all-electric types. The injection molding machine can heat the plastic and apply high pressure to the molten plastic to make it eject and fill the mold cavity. Injection molding is an important plastic processing method. In the process of injection molding, plastic particles are usually put into the barrel from the hopper, and the barrel is used to inject the solution into the inside of the fixed mold.

[0003] If the barrel of an injection molding machine is directly exposed without any energy-saving and heat-insulating measures, the following problems are generally encountered when the barrel of an injection molding machine is used: 1. The heat loss is large and the overall heating efficiency is low; 2. Even if it is not used temporarily, it cannot be shut down and continuous heating is required to maintain the temperature, which results in a large overall energy consumption; 3. The surrounding temperature is high and operators may feel uncomfortable. In the prior art, there are some energy-saving and heat-insulating devices for the barrel of an injection molding machine, such as the Chinese utility model patent with application number 201720743586.X, which discloses a screw extruder heat-insulating device, and the Chinese utility model patent with application number 202321513486.X, which discloses a heat-insulating structure for a heating barrel of an injection molding machine. Although these heat-insulating devices can play a certain role in energy-saving and heat-insulating the barrel of an injection molding machine, the energy-saving and heat-insulating effects are relatively general. Utility model content:

[0004] The purpose of the utility model is to provide an energy-saving and heat-insulating device for the barrel of an injection molding machine in view of the deficiencies in the prior art, which can well insulate and heat-insulate the barrel of the injection molding machine, reduce heat loss, and improve heating efficiency. It can be shut down when not in use temporarily to reduce energy consumption, and can reduce the ambient temperature of the barrel of the injection molding machine, thereby preventing the operating environment temperature of the operator from being too high and making the operator more comfortable.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an energy-saving and heat-insulating device for an injection molding machine barrel, comprising a vacuum insulation sleeve for covering the outside of the barrel of the injection molding machine barrel, a front closing cover arranged at the front end of the vacuum insulation sleeve, and a rear closing cover arranged at the rear end of the vacuum insulation sleeve, wherein the front closing cover, the vacuum insulation sleeve and the rear closing cover surround an energy-saving and heat-insulating cavity; the vacuum insulation sleeve comprises an insulation sleeve inner shell, an insulation sleeve outer shell, and an insulation sleeve vacuum layer arranged between the insulation sleeve inner shell and the insulation sleeve outer shell; the front closing cover comprises an closing cover inner shell, an closing cover outer shell, and an closing cover vacuum layer arranged between the closing cover inner shell and the closing cover outer shell; the rear closing cover comprises a closing cover main body and a closing cover heat-reflecting and heat-insulating layer arranged on one end of the closing cover main body close to the energy-saving and heat-insulating cavity.

[0006] A further improvement to the above scheme is that a heat-reflecting insulation layer is provided on the outer side of the inner shell of the insulation sleeve, and a heat-reflecting insulation layer is provided on the outer side of the inner shell of the closed cover. The heat-reflecting insulation layer of the insulation sleeve is aluminum foil or an electroplating layer, and the heat-reflecting insulation layer of the closed cover is aluminum foil or an electroplating layer.

[0007] A further improvement to the above solution is that the heat-reflecting and heat-insulating layer of the closing cover is a mirror-polished reflecting layer or an aluminum foil or an electroplated layer.

[0008] A further improvement to the above scheme is that the vacuum insulation sleeve includes a plurality of insulation sleeve units, and the insulation sleeve unit is a cylindrical structure with a small opening at one end and a large opening at the other end. The end of the insulation sleeve unit with a small opening is a splicing male end, and the end of the insulation sleeve unit with a large opening is a splicing female end that matches the splicing male end; when the vacuum insulation sleeve includes at least two insulation sleeve units, the insulation sleeve units are arranged side by side in sequence along the length direction of the barrel, and the splicing male ends of each insulation sleeve unit are respectively inserted forward into the splicing female ends of the insulation sleeve units adjacent thereto.

[0009] A further improvement to the above scheme is that a heat-insulating sleeve sealing ring is respectively provided at the connecting position of each of the spliced ​​male ends and the spliced ​​female ends.

[0010] A further improvement to the above scheme is that a plurality of tight-connecting ears are evenly distributed along the circumferential direction at both ends of the outer side of the insulation sleeve unit, and each tight-connecting ear located on the front end of the insulation sleeve unit is connected to the corresponding tight-connecting ear located on the rear end of the adjacent insulation sleeve unit through a bolt assembly.

[0011] A further improvement to the above scheme is that the closing cover body of the rear closing cover is formed with connecting ears that match the tight connecting ears, and each connecting ear on the closing cover body is connected to the corresponding tight connecting ears on the insulation sleeve unit at the rear end through a bolt assembly.

[0012] A further improvement to the above solution is that a sealing ring of the sealing cover is provided at the connecting position between the rear sealing cover and the vacuum insulation sleeve.

[0013] A further improvement to the above solution is that the rear closing cover also includes a sealing ring positioning plate arranged on one end of the closing cover body close to the energy-saving and heat-insulating cavity, and the closing cover sealing ring is sleeved on the sealing ring positioning plate.

[0014] A further improvement to the above scheme is that the sealing ring positioning plate is formed with a positioning plate sleeve hole, and the positioning plate sleeve hole includes a positioning plate barrel hole portion and a positioning plate harness hole portion.

[0015] A further improvement to the above scheme is that a positioning plate heat reflection and insulation layer is provided at one end of the sealing ring positioning plate away from the closing cover body, and the positioning plate heat reflection and insulation layer is a mirror-polished reflection layer or aluminum foil or an electroplated layer.

[0016] A further improvement to the above solution is that the closing cover body of the rear closing cover is formed with a closing cover sleeve hole, and the closing cover sleeve hole includes a closing cover barrel hole portion and a closing cover harness hole portion.

[0017] A further improvement to the above scheme is that a sealing ring of the sealing cover is provided at the joint position between the front sealing cover and the vacuum insulation sleeve, the front sealing cover is formed with a sealing ring groove, and the sealing ring of the sealing cover is sleeved on the sealing ring groove.

[0018] A further improvement to the above scheme is that the front closing cover includes a closing cover rear end for cooperating with the vacuum insulation sleeve, a closing cover front end for covering the outside of the barrel head of the injection molding machine barrel, and the closing cover rear end is inserted backward into the front end of the vacuum insulation sleeve.

[0019] A further improvement to the above solution is that the rear end of the sealing cover is a hollow cylindrical structure, and the front end of the sealing cover is a hollow truncated cone structure.

[0020] A further improvement to the above solution is that a closing portion is formed at the front end of the closing cover, and a closing cover sleeve hole is formed at the middle position of the closing portion.

[0021] A further improvement to the above solution is that the depth at which the rear end of the sealing cover is inserted backwards into the vacuum insulation sleeve is adjustable.

[0022] A further improvement to the above solution is that it also includes a plurality of support frames for supporting the vacuum insulation sleeve.

[0023] A further improvement to the above solution is that it also includes a temperature sensor module for detecting the temperature of the energy-saving and heat-insulating chamber, and a communication module for sending data detected by the temperature sensor module.

[0024] A further improvement to the above scheme is that it also includes a rapid cooling valve module, which includes a plurality of ventilation holes arranged on the front sealing cover and / or the rear sealing cover and / or the vacuum insulation sleeve, and a switch valve for controlling the opening and closing of the ventilation holes.

[0025] The utility model has the beneficial effects that: the utility model provides an energy-saving heat-insulating device for an injection molding machine barrel, comprising a vacuum heat-insulating sleeve for covering the outside of the barrel of the injection molding machine barrel, a front sealing cover arranged at the front end of the vacuum heat-insulating sleeve, and a rear sealing cover arranged at the rear end of the vacuum heat-insulating sleeve, wherein the front sealing cover, the vacuum heat-insulating sleeve, and the rear sealing cover surround an energy-saving heat-insulating cavity; the vacuum heat-insulating sleeve comprises an inner shell of the heat-insulating sleeve, an outer shell of the heat-insulating sleeve, and a heat-insulating sleeve vacuum layer arranged between the inner shell of the heat-insulating sleeve and the outer shell of the heat-insulating sleeve; the front sealing cover comprises an inner shell of the sealing cover, an outer shell of the sealing cover, and a seal vacuum layer arranged between the inner shell of the sealing cover and the outer shell of the sealing cover; the rear sealing cover comprises a sealing cover body, and a sealing cover heat-reflecting heat-insulating layer arranged on one end of the sealing cover body close to the energy-saving heat-insulating cavity;

[0026] By installing the utility model on the traditional injection molding machine barrel, the utility model can effectively reduce the heat conduction efficiency at the position of the front closed cover and reduce the heat loss from the position of the front closed cover to the surrounding environment through the closed cover vacuum layer of the front closed cover, effectively reduce the heat conduction efficiency at the position of the vacuum insulation sleeve and reduce the heat loss from the position of the vacuum insulation sleeve to the surrounding environment through the insulation sleeve vacuum layer of the vacuum insulation sleeve, reflect the infrared radiation heat at the position of the rear closed cover through the closed cover heat reflection insulation layer and further reduce the heat loss from the position of the rear closed cover to the surrounding environment, and the closed cover vacuum layer of the front closed cover, the insulation sleeve vacuum layer of the vacuum insulation sleeve and the closed cover heat reflection insulation layer of the rear closed cover can well wrap the heat emitted by the injection molding machine barrel, well insulate and heat-insulate the injection molding machine barrel, reduce heat loss, improve heating efficiency, stop the machine when not in use, reduce energy consumption, reduce the surrounding temperature of the injection molding machine barrel, prevent the working environment temperature of the operator from being too high, and make the operator more comfortable. Description of the drawings:

[0027] Figure 1 It is a structural schematic diagram of the utility model.

[0028] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model.

[0029] Figure 3 It is a structural schematic diagram of the front closed cover of the utility model.

[0030] Figure 4 It is a schematic diagram of the cross-sectional structure of the front closing cover of the utility model.

[0031] Figure 5 It is a structural schematic diagram of the thermal insulation sleeve unit of the utility model.

[0032] Figure 6 It is a schematic diagram of the cross-sectional structure of the thermal insulation sleeve unit of the utility model.

[0033] Figure 7 It is a structural schematic diagram of the rear closing cover of the utility model.

[0034] Figure 8 It is a structural schematic diagram of the rear closing cover of the utility model from another perspective.

[0035] Description of reference numerals: vacuum insulation sleeve 1, front closed cover 2, closed cover inner shell 21, closed cover outer shell 22, closed cover vacuum layer 23, closed cover rear end 24, sealing ring groove 241, closed cover front end 25, closed portion 251, closed cover sleeve hole 252, closed cover heat reflection insulation layer 26, closed cover sealing ring 27, rear closed cover 3, closed cover body 31, closed cover sleeve hole 32, closed cover barrel hole 321, closed cover harness hole 322, closed cover heat reflection insulation layer 33, connecting ear 34, closed cover sealing ring 35, sealing ring positioning plate 3 6. Positioning plate sleeve hole 361, positioning plate barrel hole 3611, positioning plate harness hole 3612, positioning plate heat reflective insulation layer 37, energy-saving insulation cavity 4, insulation sleeve unit 5, splicing male end 51, splicing female end 52, insulation sleeve inner shell 53, insulation sleeve outer shell 54, annular reinforcement rib 541, insulation sleeve vacuum layer 55, insulation sleeve heat reflective insulation layer 56, insulation sleeve sealing ring 57, tight connection ear 58, bolt assembly 59, support frame 6, temperature sensor module 7, communication module 8, rapid cooling valve module 9, vent 91, switch valve 92. Specific implementation method:

[0036] The utility model will be further described below in conjunction with the accompanying drawings. Figure 1-8As shown, the utility model comprises a vacuum insulation sleeve 1 for covering the outside of the barrel of the injection molding machine barrel, a front sealing cover 2 arranged at the front end of the vacuum insulation sleeve 1, and a rear sealing cover 3 arranged at the rear end of the vacuum insulation sleeve 1, wherein the front sealing cover 2, the vacuum insulation sleeve 1, and the rear sealing cover 3 surround an energy-saving insulation cavity 4; the vacuum insulation sleeve 1 comprises an insulation sleeve inner shell 53, an insulation sleeve outer shell 54, and an insulation sleeve vacuum layer 55 arranged between the insulation sleeve inner shell 53 and the insulation sleeve outer shell 54; the front sealing cover 2, the vacuum insulation sleeve 1, and the rear sealing cover 3 form an energy-saving insulation cavity 4; the vacuum insulation sleeve 1 comprises an insulation sleeve inner shell 53, an insulation sleeve outer shell 54, and an insulation sleeve vacuum layer 55 arranged between the insulation sleeve inner shell 53 and the insulation sleeve outer shell 54; The sealing cover 2 includes a sealing cover inner shell 21, a sealing cover outer shell 22, and a sealing cover vacuum layer 23 arranged between the sealing cover inner shell 21 and the sealing cover outer shell 22; the rear sealing cover 3 includes a sealing cover body 31, and a sealing cover heat reflection insulation layer 33 arranged on one end of the sealing cover body 31 close to the energy-saving heat preservation cavity 4; by adding the utility model to the conventional injection molding machine barrel, the utility model can effectively reduce the heat transfer at the position of the front sealing cover 2 through the sealing cover vacuum layer 23 of the front sealing cover 2. The heat conduction efficiency can be improved and the heat loss from the front closed cover 2 to the surrounding environment can be reduced. The heat insulation sleeve vacuum layer 55 of the vacuum insulation sleeve 1 can effectively reduce the heat conduction efficiency at the position of the vacuum insulation sleeve 1 and reduce the heat loss from the position of the vacuum insulation sleeve 1 to the surrounding environment. The infrared radiation heat at the position of the rear closed cover 3 can be reflected by the closed cover heat reflection insulation layer 33 and the heat loss from the position of the rear closed cover 3 to the surrounding environment can be further reduced. The closed cover vacuum layer 23 of the front closed cover 2, the insulation sleeve vacuum layer 55 of the vacuum insulation sleeve 1 and the closed cover heat reflection insulation layer 33 of the rear closed cover 3 can cooperate well to wrap the heat emitted by the injection molding machine barrel, and can well keep the injection molding machine barrel warm and insulate, reduce heat loss, improve heating efficiency, and can be shut down when not in use temporarily to reduce energy consumption. The surrounding temperature of the injection molding machine barrel can be reduced, and the working environment temperature of the operator can be prevented from being too high, and the operator is more comfortable.

[0037] An insulation sleeve heat reflecting insulation layer 56 is provided on the outer side of the insulation sleeve inner shell 53. The insulation sleeve heat reflecting insulation layer 56 is aluminum foil or an electroplating layer. The insulation sleeve heat reflecting insulation layer 56 in this embodiment is aluminum foil, which can not only reflect infrared radiation heat well, but also has a relatively low overall cost and is easy to process. The insulation sleeve heat reflecting insulation layer 56 can reflect the infrared radiation heat at the position of the vacuum insulation sleeve 1 and can further reduce the heat loss from the position of the vacuum insulation sleeve 1 to the surrounding environment, thereby further improving the overall heating efficiency and enhancing the heat preservation and heat insulation effects.

[0038] A closed cover heat reflecting insulation layer 26 is provided on the outer side of the closed cover inner shell 21. The closed cover heat reflecting insulation layer 26 is aluminum foil or an electroplating layer. The closed cover heat reflecting insulation layer 26 in this embodiment is aluminum foil, which can not only reflect infrared radiation heat well, but also has a relatively low overall cost and is easy to process. The closed cover heat reflecting insulation layer 26 can reflect the infrared radiation heat at the position of the front closed cover 2 and can further reduce the heat loss from the front closed cover 2 to the surrounding environment, thereby further improving the overall heating efficiency and enhancing the heat preservation and heat insulation effects.

[0039] The heat-reflecting and heat-insulating layer 33 of the closed cover is a mirror-polished reflective layer or an aluminum foil or an electroplated layer. The heat-reflecting and heat-insulating layer 33 of the closed cover in this embodiment is a mirror-polished reflective layer, that is, the mirror-polished reflective layer is formed by polishing and grinding the closed cover body 31, which can not only reflect infrared radiation heat well, but also has an overall low cost and is easy to process.

[0040] The vacuum degree of the insulation sleeve vacuum layer 55 is preferably 9x10 -3 -1x10 -1 pa, the vacuum degree of the insulation sleeve vacuum layer 55 is further preferably 8x10 -3 -1.8x10 -2 pa, which can be well used for heat preservation and heat insulation; the vacuum degree of the closed cover vacuum layer 23 is preferably 9x10 -3 -1x10 -1 pa, the vacuum degree of the closed cover vacuum layer 23 is further preferably 8x10 -3 -1.8x10 -2 pa, can be used for heat preservation and insulation.

[0041] The greater the thickness of the insulation sleeve vacuum layer 55 and the sealing cover vacuum layer 23, the better the insulation effect, but the more difficult the processing is and the higher the processing cost is. Taking all the above considerations into consideration, the thickness of the insulation sleeve vacuum layer 55 is preferably 4-10mm, and the thickness of the sealing cover vacuum layer 23 is preferably 4-10mm, which ensures the insulation effect while ensuring the processing cost.

[0042] The vacuum insulation sleeve 1 includes a plurality of insulation sleeve units 5, the insulation sleeve units 5 include an insulation sleeve inner shell 53, an insulation sleeve outer shell 54, and an insulation sleeve vacuum layer 55 arranged between the insulation sleeve inner shell 53 and the insulation sleeve outer shell 54. The insulation sleeve inner shell 53 of each insulation sleeve unit 5 constitutes the insulation sleeve inner shell 53 of the vacuum insulation sleeve 1, the insulation sleeve outer shell 54 of each insulation sleeve unit 5 constitutes the insulation sleeve outer shell 54 of the vacuum insulation sleeve 1, and the insulation sleeve vacuum layer 55 of each insulation sleeve unit 5 constitutes the vacuum insulation sleeve 1, the insulation cover vacuum layer 55, the insulation cover unit 5 is a cylindrical structure with a small opening at one end and a large opening at the other end, the end of the insulation cover unit 5 with a small opening is a splicing male end 51, and the end of the insulation cover unit 5 with a large opening is a splicing female end 52 matched with the splicing male end 51; when the vacuum insulation cover 1 includes at least two insulation cover units 5, each insulation cover unit 5 is sequentially arranged side by side along the length direction of the barrel, and the splicing male ends 51 of each insulation cover unit 5 are respectively inserted forward to the insulation cover adjacent to it. In the splicing female end 52 of the thermal sleeve unit 5; compared with the vacuum insulation sleeve 1 with an integrated structure and a single length, it can only be applied to injection molding machine barrels of some length models. When it is applied to injection molding machine barrels of other different length models, it is necessary to re-open the mold and design the vacuum insulation sleeve 1. The vacuum insulation sleeve 1 of the utility model is composed of a plurality of insulation sleeve units 5. The corresponding number of insulation sleeve units 5 can be selected according to specific use requirements to form vacuum insulation sleeves 1 of different lengths, which can well meet the use of injection molding machine barrels of different length models and has greater flexibility; the splicing male ends 51 of each insulation sleeve unit 5 of the utility model are respectively inserted forward into the splicing female ends 52 of the insulation sleeve units 5 adjacent thereto, that is, an interlaced overlapping connection structure is adopted, which is not only easier to quickly align and assemble, but also the connection gaps between the insulation sleeve units 5 are smaller, which can prevent heat from being lost from the connection gaps between the insulation sleeve units 5, thereby better ensuring the insulation and heat insulation effects of the vacuum insulation sleeve 1.

[0043] An insulation sleeve sealing ring 57 is respectively provided at the connecting position of each of the splicing male ends 51 and the splicing female ends 52; by respectively providing an insulation sleeve sealing ring 57 at the connecting position of each of the splicing male ends 51 and the splicing female ends 52, the sealing performance at the connecting position of each of the splicing male ends 51 and the splicing female ends 52 can be improved, thereby better preventing heat from being lost from the connecting position of each of the splicing male ends 51 and the splicing female ends 52, and better ensuring the insulation and heat insulating effect of the vacuum insulation sleeve 1.

[0044] The outer ends of the insulation sleeve unit 5 are respectively provided with a plurality of tight connection ears 58 evenly distributed along the circumferential direction. Each tight connection ear 58 located on the front end of the insulation sleeve unit 5 is connected to the corresponding tight connection ear 58 located on the rear end of the adjacent insulation sleeve unit 5 through a bolt assembly 59. The bolt assembly 59 is a known technology, including bolts, nuts, etc.; the cooperation of the tight connection ears 58 and the bolt assembly 59 on the two insulation sleeve units 5 can not only make the connection between the two insulation sleeve units 5 more It is stable and not easy to fall off, and can tighten the insulation sleeve sealing ring 57; compared with simply setting the insulation sleeve sealing ring 57 at the connecting position of the splicing male end 51 and the splicing female end 52, the tightened insulation sleeve sealing ring 57 can better and more fully seal the gap between the splicing male end 51 and the splicing female end 52, thereby better ensuring that heat will not be lost from the connecting position of each splicing male end 51 and the splicing female end 52, and can better ensure the heat preservation and heat insulation effect of the vacuum insulation sleeve 1.

[0045] The closing cover body 31 of the rear closing cover 3 is formed with connecting ears 34 that match the tight connecting ears 58. Each connecting ear 34 on the closing cover body 31 is connected to the corresponding tight connecting ear 58 on the insulation sleeve unit 5 located at the rear end through a bolt assembly 59; the connecting ears 34 on the rear closing cover 3 can be quickly and conveniently connected to the vacuum insulation sleeve 1.

[0046] Since the barrel sizes of different types of injection molding machine barrels are different, the diameter of the end with a small opening of the insulation sleeve unit 5 of the utility model is preferably 185-195mm, and the diameter of the end with a large opening of the insulation sleeve unit 5 is preferably 201-211mm, which can be preferably used for 120-300 ton injection molding machine barrels.

[0047] If the length of a single insulation sleeve unit 5 is too short, a large number of insulation sleeve units 5 are required for splicing, which not only makes assembly more troublesome, but also causes a large number of overall splicing gaps, affecting the overall insulation effect; if the length of a single insulation sleeve unit 5 is too long, it is not only inconvenient to control the overall length, but also makes the insulation sleeve unit 5 difficult to process and has a high processing cost; based on the above considerations, the length of the insulation sleeve unit 5 of the utility model is preferably 198-218mm, which can better meet the actual application scenarios.

[0048] A closing cover sealing ring 35 is provided at the joint position between the rear closing cover 3 and the insulation sleeve unit 5. The closing cover sealing ring 35 can better prevent heat from being lost from the joint position between the rear closing cover 3 and the insulation sleeve unit 5, thereby better ensuring the overall heat preservation and thermal insulation effect.

[0049] The rear closing cover 3 also includes a sealing ring positioning plate 36 arranged on one end of the closing cover body 31 close to the energy-saving and heat-insulating chamber 4, and the closing cover sealing ring 35 is sleeved on the sealing ring positioning plate 36; by providing the sealing ring positioning plate 36, not only is the closing cover sealing ring 35 easier to install, but the closing cover sealing ring 35 is also less likely to move, so that the connecting position of the rear closing cover 3 and the heat-insulating sleeve unit 5 can be better sealed, and heat can be better ensured not to be lost from the connecting position of the rear closing cover 3 and the heat-insulating sleeve unit 5.

[0050] The sealing ring positioning plate 36 is formed with a positioning plate sleeve hole 361. Compared with setting the positioning plate sleeve hole 361 as a large round hole, heat is easily dissipated from the gap between the sealing ring positioning plate 36 and the barrel of the injection molding machine. The positioning plate sleeve hole 361 includes a positioning plate barrel hole portion 3611 and a positioning plate harness hole portion 3612; the positioning plate barrel hole portion 3611 fits with the barrel of the injection molding machine, and the positioning plate harness hole portion 3612 is used for the wiring harness of the heating device to pass through. The sealing ring positioning plate 36 can be better fitted on the injection molding machine barrel, thereby better preventing heat loss.

[0051] A positioning plate heat reflecting insulation layer 37 is provided at one end of the sealing ring positioning plate 36 away from the closing cover body 31. The positioning plate heat reflecting insulation layer 37 can reflect the infrared radiation heat at the position of the sealing ring positioning plate 36 and can further reduce the heat loss from the position of the rear closing cover 3 to the surrounding environment, thereby further improving the overall heating efficiency and enhancing the heat preservation and heat insulation effects; the positioning plate heat reflecting insulation layer 37 is a mirror-polished reflection layer or aluminum foil or electroplating layer; the positioning plate heat reflecting insulation layer 37 in this embodiment is a mirror-polished reflection layer, that is, the mirror-polished reflection layer is formed by polishing and grinding the sealing ring positioning plate 36, which can not only reflect the infrared radiation heat well, but also has the overall cost is relatively cheap and easy to process.

[0052] The closing cover body 31 of the rear closing cover 3 is formed with a closing cover sleeve hole 32. Compared with setting the closing cover sleeve hole 32 as a large round hole, heat is easily dissipated from the gap between the closing cover body 31 and the barrel of the injection molding machine. The closing cover sleeve hole 32 includes a closing cover barrel hole portion 321 and a closing cover harness hole portion 322; the closing cover barrel hole portion 321 fits with the barrel of the injection molding machine, and the closing cover harness hole portion 322 is used for the wiring harness of the processing device to pass through. The closing cover body 31 can be better fitted on the injection molding machine barrel, thereby better preventing heat loss.

[0053] A sealing cover sealing ring 27 is provided at the connecting position of the front sealing cover 2 and the insulation sleeve unit 5; by providing the sealing cover sealing ring 27 at the connecting position of the front sealing cover 2 and the insulation sleeve unit 5, the sealing performance at the connecting position of the front sealing cover 2 and the insulation sleeve unit 5 can be improved, thereby better avoiding heat loss from the connecting position of the front sealing cover 2 and the insulation sleeve unit 5, and better ensuring the overall heat preservation and heat insulation effect.

[0054] The front closing cover 2 is formed with a sealing ring groove 241, and the closing cover sealing ring 27 is sleeved on the sealing ring groove 241; by providing the sealing ring groove 241, not only is the closing cover sealing ring 27 easier to install, but the closing cover sealing ring 27 is also less likely to move, so that the front closing cover 2 and the thermal insulation sleeve unit 5 can be better sealed at the connection position, and heat can be better ensured not to be lost from the connection position of the front closing cover 2 and the thermal insulation sleeve unit 5.

[0055] The front closed cover 2 includes a closed cover rear end 24 for cooperating with the vacuum insulation sleeve 1, and a closed cover front end 25 for covering the outside of the barrel head of the injection molding machine barrel, and the closed cover rear end 24 is inserted backward into the front end of the vacuum insulation sleeve 1; compared with only insulating and heat-insulating the outside of the barrel of the injection molding machine barrel, the front closed cover 2 of the utility model can also wrap the heat emitted by the barrel head of the injection molding machine barrel, so as to further keep the injection molding machine barrel warm and heat-insulate, which can further reduce heat loss and improve heating efficiency.

[0056] The depth at which the rear end 24 of the closing cover is inserted backwards in the vacuum insulation sleeve 1 is adjustable; by pushing and pulling the front closing cover 2, the depth at which the rear end 24 of the closing cover is inserted backwards in the splicing male end 51 of the insulation sleeve unit 5 located at the front end can be adjusted, thereby being able to adjust the overall length of the utility model, which is more flexible and practical, and can be better used in conjunction with injection molding machine barrels of different lengths.

[0057] The rear end 24 of the closed cover is a hollow cylindrical structure, which makes it easier to adjust the depth of the rear end 24 of the closed cover inserted backwards into the splicing male end 51 of the insulation sleeve unit 5 located at the front end.

[0058] The front end 25 of the closed cover is a hollow frustum-shaped structure. Since the barrel head of the injection molding machine barrel needs to be inserted into the gun pit during injection molding, the front end 25 of the closed cover with a hollow frustum-shaped structure can keep the barrel head warm and insulate while making it easier to insert into the gun pit.

[0059] A closing portion 251 is formed at the front end of the closing cover front end 25, and a closing cover sleeve hole 252 is formed at the middle position of the closing portion 251. The closing cover sleeve hole 252 is sleeved on the barrel head. The setting of the closing portion 251 at the front end 25 of the closing cover can better seal and prevent heat loss.

[0060] The outer shell 54 of the heat-insulating sleeve is formed with a plurality of annular reinforcing ribs 541 . The annular reinforcing ribs 541 can improve the structural strength of the outer shell 54 of the heat-insulating sleeve, thereby preventing deformation during vacuuming.

[0061] The utility model further comprises a plurality of support frames 6 for supporting the vacuum insulation sleeve 1. The vacuum insulation sleeve 1 can be supported by the support frames 6, and the overall structure is more stable.

[0062] The utility model further comprises a temperature sensor module 7 for detecting the temperature of the energy-saving heat preservation chamber 4. The temperature of the energy-saving heat preservation chamber 4 can be monitored in real time by the temperature sensor module 7, so that the temperature can be adjusted more accurately.

[0063] The utility model also includes a communication module 8 for sending data detected by the temperature sensor module 7. Through the cooperation of the temperature sensor module 7 and the communication module 8, the temperature condition can be remotely monitored in real time in the background, which is more practical.

[0064] The present invention also includes a rapid cooling valve module 9, which includes a plurality of vents 91 arranged on the front closure cover 2 and / or the rear closure cover 3 and / or the vacuum insulation sleeve 1, and a switch valve 92 for controlling the opening and closing of the vents 91; the rapid cooling valve module 9 in this embodiment includes the vents 91 arranged on the rear closure cover 3, of course, in other embodiments, the rapid cooling valve module 9 can also include the vents 91 arranged on the front closure cover 2 or the vacuum insulation sleeve 1, and the switch valve 92 can be a manual valve or a solenoid valve, etc.; by opening the vents 91 and connecting the energy-saving insulation chamber 4 to the outside, or by opening the vents 91 and blowing air into the energy-saving insulation chamber 4, the barrel of the injection molding machine can be rapidly cooled, so as to facilitate use scenarios where the barrel of the injection molding machine needs to be rapidly cooled and cooled, such as changing materials, and the utility model is more practical.

[0065] Working principle:

[0066] The utility model is installed on the barrel of the injection molding machine. The utility model can effectively reduce the heat conduction efficiency at the position of the front closed cover 2 and reduce the heat loss from the position of the front closed cover 2 to the surrounding environment through the closed cover vacuum layer 23 of the front closed cover 2. The heat conduction efficiency at the position of the vacuum insulation sleeve 1 can be effectively reduced through the insulation sleeve vacuum layer 55 of the vacuum insulation sleeve 1 and reduce the heat loss from the position of the vacuum insulation sleeve 1 to the surrounding environment. The infrared radiation heat at the position of the rear closed cover 3 can be reflected through the closed cover heat reflection insulation layer 33 and can further reduce Less heat is lost from the rear closing cover 3 to the surrounding environment. The closing cover vacuum layer 23 of the front closing cover 2, the insulation cover vacuum layer 55 of the vacuum insulation cover 1 and the closing cover heat reflection insulation layer 33 of the rear closing cover 3 can well wrap the heat emitted by the injection molding machine barrel, and can well keep the injection molding machine barrel warm and insulate, which can reduce heat loss and improve heating efficiency. It can be shut down when not in use temporarily to reduce energy consumption, and can reduce the surrounding temperature of the injection molding machine barrel, which can prevent the operator's working environment temperature from being too high and make the operator more comfortable.

[0067] Of course, the above is only a preferred embodiment of the present invention, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present invention patent application are included in the scope of the present invention patent application.

Claims

1. An energy-saving and heat-insulating device for an injection molding machine barrel, characterized in that: The invention comprises a vacuum insulation sleeve (1) for covering the outside of a barrel of an injection molding machine, a front sealing cover (2) arranged at the front end of the vacuum insulation sleeve (1), and a rear sealing cover (3) arranged at the rear end of the vacuum insulation sleeve (1); the front sealing cover (2), the vacuum insulation sleeve (1), and the rear sealing cover (3) surround an energy-saving insulation cavity (4); the vacuum insulation sleeve (1) comprises an insulation sleeve inner shell (53), an insulation sleeve outer shell (54), and an insulation sleeve vacuum layer (55) arranged between the insulation sleeve inner shell (53) and the insulation sleeve outer shell (54); the front sealing cover (2) comprises an insulation sleeve inner shell (21), an insulation sleeve outer shell (22), and an insulation sleeve vacuum layer (23) arranged between the insulation sleeve inner shell (21) and the insulation sleeve outer shell (22); and the rear sealing cover (3) comprises an insulation cover body (31), and an insulation cover heat reflection insulation layer (33) arranged on one end of the insulation cover body (31) close to the energy-saving insulation cavity (4).

2. The energy-saving and heat-insulating device for the barrel of an injection molding machine according to claim 1, characterized in that: The outer side of the insulation sleeve inner shell (53) is provided with an insulation sleeve heat reflection insulation layer (56), the outer side of the closed cover inner shell (21) is provided with a closed cover heat reflection insulation layer (26), the insulation sleeve heat reflection insulation layer (56) is aluminum foil or electroplating layer, and the closed cover heat reflection insulation layer (26) is aluminum foil or electroplating layer.

3. The energy-saving and heat-insulating device for the barrel of an injection molding machine according to claim 1, characterized in that: The heat-reflecting and heat-insulating layer (33) of the sealing cover is a mirror-polished reflecting layer or an aluminum foil or an electroplated layer.

4. The energy-saving and heat-insulating device for the barrel of an injection molding machine according to claim 1, characterized in that: The vacuum thermal insulation sleeve (1) comprises a plurality of thermal insulation sleeve units (5), wherein the thermal insulation sleeve units (5) are cylindrical structures with a small opening at one end and a large opening at the other end, wherein the end of the thermal insulation sleeve unit (5) with a small opening is a splicing male end (51), and the end of the thermal insulation sleeve unit (5) with a large opening is a splicing female end (52) matched with the splicing male end (51); when the vacuum thermal insulation sleeve (1) comprises at least two thermal insulation sleeve units (5), the thermal insulation sleeve units (5) are arranged side by side in sequence along the length direction of the barrel, and the splicing male end (51) of each thermal insulation sleeve unit (5) is respectively inserted forward into the splicing female end (52) of the thermal insulation sleeve unit (5) adjacent thereto.

5. The energy-saving and heat-insulating device for the barrel of an injection molding machine according to claim 4, characterized in that: A heat-insulating sleeve sealing ring (57) is respectively provided at the connecting position of each of the splicing male ends (51) and the splicing female ends (52).

6. An energy-saving and heat-insulating device for an injection molding machine barrel according to claim 4 or 5, characterized in that: A plurality of tight connection ears (58) are evenly distributed along the circumferential direction at both ends of the outer side of the thermal insulation sleeve unit (5), and each tight connection ear (58) located on the front end of the thermal insulation sleeve unit (5) is connected to a corresponding tight connection ear (58) located on the rear end of an adjacent thermal insulation sleeve unit (5) through a bolt assembly (59).

7. The energy-saving and heat-insulating device for the barrel of an injection molding machine according to claim 6, characterized in that: The closing cover body (31) of the rear closing cover (3) is formed with a connecting ear portion (34) that matches the tight connecting ear (58), and each connecting ear portion (34) on the closing cover body (31) is connected to a corresponding tight connecting ear (58) on the thermal insulation sleeve unit (5) located at the rear end through a bolt assembly (59).

8. The energy-saving and heat-insulating device for the barrel of an injection molding machine according to claim 1, characterized in that: A sealing ring (35) is provided at the joint between the rear sealing cover (3) and the vacuum insulation sleeve (1).

9. The energy-saving and heat-insulating device for the barrel of an injection molding machine according to claim 8, characterized in that: The rear closing cover (3) further comprises a sealing ring positioning plate (36) arranged on one end of the closing cover body (31) close to the energy-saving heat preservation chamber (4), and the closing cover sealing ring (35) is sleeved on the sealing ring positioning plate (36).

10. The energy-saving and heat-insulating device for the barrel of an injection molding machine according to claim 9, characterized in that: The sealing ring positioning plate (36) is formed with a positioning plate sleeve hole (361), and the positioning plate sleeve hole (361) includes a positioning plate barrel hole portion (3611) and a positioning plate harness hole portion (3612).

11. The energy-saving and heat-insulating device for the barrel of an injection molding machine according to claim 9, characterized in that: The end of the sealing ring positioning plate (36) away from the sealing cover body (31) is provided with a positioning plate heat reflection insulation layer (37), and the positioning plate heat reflection insulation layer (37) is a mirror-polished reflection layer or an aluminum foil or an electroplated layer.

12. The energy-saving and heat-insulating device for the barrel of an injection molding machine according to claim 1, characterized in that: The closing cover body (31) of the rear closing cover (3) is formed with a closing cover sleeve hole (32), and the closing cover sleeve hole (32) comprises a closing cover barrel hole portion (321) and a closing cover harness hole portion (322).

13. The energy-saving and heat-insulating device for the barrel of an injection molding machine according to claim 1, characterized in that: A sealing cover sealing ring (27) is provided at the joint position between the front sealing cover (2) and the vacuum insulation sleeve (1); the front sealing cover (2) is formed with a sealing ring groove (241); and the sealing cover sealing ring (27) is sleeved on the sealing ring groove (241).

14. The energy-saving and heat-insulating device for the barrel of an injection molding machine according to claim 1, characterized in that: The front sealing cover (2) comprises a sealing cover rear end (24) for cooperating with the vacuum insulation sleeve (1) and a sealing cover front end (25) for covering the outside of the barrel head of the injection molding machine barrel, and the sealing cover rear end (24) is inserted backward into the front end of the vacuum insulation sleeve (1).

15. The energy-saving and heat-insulating device for the barrel of an injection molding machine according to claim 14, characterized in that: The rear end (24) of the sealing cover is a hollow cylindrical structure, and the front end (25) of the sealing cover is a hollow truncated cone structure.

16. The energy-saving and heat-insulating device for the barrel of an injection molding machine according to claim 14, characterized in that: A sealing portion (251) is formed at the front end of the sealing cover front end (25), and a sealing cover sleeve hole (252) is formed at the middle position of the sealing portion (251).

17. The energy-saving and heat-insulating device for the barrel of an injection molding machine according to claim 14, characterized in that: The rear end (24) of the sealing cover is inserted backwards into the vacuum insulation sleeve (1) to an adjustable depth.

18. The energy-saving and heat-insulating device for the barrel of an injection molding machine according to claim 1, characterized in that: It also includes a plurality of support frames (6) for supporting the vacuum insulation sleeve (1).

19. The energy-saving and heat-insulating device for the barrel of an injection molding machine according to claim 1, characterized in that: It also includes a temperature sensor module (7) for detecting the temperature of the energy-saving heat preservation chamber (4) and a communication module (8) for transmitting data detected by the temperature sensor module (7).

20. The energy-saving and heat-insulating device for the barrel of an injection molding machine according to claim 1, characterized in that: The invention also comprises a rapid cooling valve module (9), wherein the rapid cooling valve module (9) comprises a plurality of ventilation openings (91) arranged on the front sealing cover (2) and / or the rear sealing cover (3) and / or the vacuum insulation sleeve (1), and a switch valve (92) for controlling the opening and closing of the ventilation openings (91).

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