High temperature resistant sleeve for injection molding machine cylinder

Abstract

The utility model relates to the technical field of protective sleeve, and disclose a kind of high-temperature-resistant protective sleeve for injection molding machine cylinder, including protective sleeve body, the one end of protective sleeve body is sewn with connecting rope, the one end of connecting rope is fixedly installed with first connecting block, the one end of first connecting block is provided with mounting groove, second connecting block is installed in the inside of mounting groove.The utility model is through the clamping cooperation of first connecting block and second connecting block, the spring pin type mechanical locking of reinforcing structure and the lever tightening effect of connecting rod, formed a set of mechanical, no heat-sensitive adhesive component fastening structure, the structure not only keeps stable under high temperature environment, avoid the fixed force attenuation caused by material thermal aging, and its rigid connection characteristics completely eliminates the loosening risk caused by vibration or material fatigue, ensure that protective sleeve body is durable fastening and heat preservation integrity under long-term high-temperature working condition, solve the technical pain point that traditional magic paste fastening is unreliable.

Description

Technical Field

[0001] This utility model relates to the field of protective sleeve technology, specifically a high-temperature resistant protective sleeve for injection molding machine barrels. Background Technology

[0002] A protective sleeve, as the name suggests, is a sleeve-like object that wraps around the outside of an object to provide protection. In fact, high-temperature resistant protective sleeves for injection molding machine barrels, often called heat insulation covers or thermal insulation sleeves, are protective shells that wrap around the outside of the injection molding machine barrel. Their main function is to insulate the barrel from high temperatures, thereby saving energy, improving the working environment, and protecting personnel and equipment.

[0003] The utility model patent application with publication number "CN201824513U" discloses a heat insulation and protective sleeve for injection molding machine barrels, mainly composed of a protective sleeve and a heat-insulating Velcro strap. This technical solution provides comprehensive heat insulation, convenient installation, lightweight, flexible use, and does not affect any parts of the protected equipment.

[0004] The aforementioned document discloses the following defects in the heat insulation protective sleeve for injection molding machine barrels: This technical solution uses Velcro as the main method of fastening the protective sleeve. However, it will loosen and fail under long-term high-temperature conditions. This is mainly because the hook and loop sides of the Velcro are prone to fatigue hardening under continuous heat radiation, which weakens the elasticity of the hooks and reduces the fiber strength, causing the interlocking force of the hooks to gradually decline. At the same time, oil and fiber dust in the workshop environment further invade the gaps between the hooks, contaminating and blocking the effective bonding area. Ultimately, the protective sleeve is not firmly fixed on the barrel surface, gaps are generated at the overlapping seals, causing heat leakage and affecting the overall insulation performance. Utility Model Content

[0005] The purpose of this utility model is to provide a high-temperature resistant protective sleeve for injection molding machine barrels, which solves the problem that the protective sleeves in the existing technology use Velcro as the main fastening method, and will loosen and fail under long-term high-temperature conditions.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a high-temperature resistant protective sleeve for injection molding machine barrels, comprising a protective sleeve body. A connecting rope is sewn to one end of the protective sleeve body, and a first connecting block is fixedly installed at one end of the connecting rope. A mounting groove is formed at one end of the first connecting block, and a second connecting block is installed inside the mounting groove. An opening is formed at the other end of the second connecting block, and a connecting rod is fixedly connected inside the opening. The other end of the connecting rope passes through the opening and extends outwards. A through-hole is formed on the outer side of the first connecting block, and a protrusion is formed on the outer side of the second connecting block. The protrusion engages with the inside of the through-hole. A mounting hole is formed at one end of the first connecting block, and the other end of the mounting hole passes through the second connecting block and extends outwards. An internal reinforcement structure is provided, comprising a mounting block installed in a mounting hole. One end of the mounting block has a rectangular block, and the other end of the mounting block has a fixing hole. One end of the mounting block is provided with a housing, and the other end of the mounting block is located inside the housing. A support frame is provided on the outside of the housing, and a through hole is provided on the outside of the support frame. A moving rod is slidably connected inside the through hole. One end of the moving rod has a pull block, and the other end of the moving rod has a fixing block. One end of the fixing block passes through the housing and is fitted inside the fixing hole. A spring is sleeved on the outside of the moving rod. One end of the spring is fixedly installed on the outside of the support frame, and the other end of the spring is fixedly installed on the outside of the fixing block.

[0008] Furthermore, one end of the fixing block has an inclined surface.

[0009] Furthermore, one end of the mounting block has an arc-shaped surface that mates with the inclined surface.

[0010] Furthermore, anti-slip stripes are provided on the outer sides of both the rectangular block and the pull block.

[0011] Furthermore, the surface of the protective sleeve body is coated with a ceramic coating.

[0012] Furthermore, the support frame and the housing are fixed together as an integral structure by welding.

[0013] This utility model has the following beneficial effects:

[0014] (1) This utility model forms a mechanical fastening structure without heat-sensitive adhesive components by means of the snap-fit ​​of the first connecting block and the second connecting block, the spring pin mechanical locking of the reinforced structure and the lever tightening effect of the connecting rod. This structure not only remains stable in high temperature environment, avoiding the attenuation of fixing force due to material thermal aging, but also its rigid connection characteristics completely eliminate the risk of loosening caused by vibration or material fatigue, ensuring the long-term fastening and heat preservation integrity of the protective sleeve body under long-term high temperature working conditions, thus solving the technical pain point of unreliable fastening of traditional Velcro.

[0015] (2) When locking or unlocking this utility model, the operator needs to apply force to the rectangular block to insert or pull out the mounting block, and pull the pull block to overcome the spring force so that the fixing block is disengaged from the fixing hole. During this process, the anti-slip stripes on the outer side of the rectangular block and the pull block significantly increase the friction coefficient between the fingers and the contact surface, effectively preventing slippage or slippage caused by hand slippage or oil stains during the application of force. This ensures that the operator can still apply precise and reliable control force to the locking mechanism even in workshop environments where gloves are worn or hands are oily, thereby ensuring the safety, smoothness and efficiency of the entire mechanical locking process.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

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

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is an exploded view of the overall structure of this utility model;

[0020] Figure 3 This is a cross-sectional view of the first connecting block, the second connecting block, and the reinforcing structure of this utility model;

[0021] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0022] Figure 5 This is an exploded view of the reinforced structure of this utility model;

[0023] The attached diagram lists the components represented by each number as follows:

[0024] In the diagram: 1. Protective sleeve body; 2. Connecting rope; 3. First connecting block; 4. Second connecting block; 5. Connecting rod; 6. Reinforcing structure; 601. Mounting block; 602. Rectangular block; 603. Shell; 604. Support frame; 605. Moving rod; 606. Pull block; 607. Fixing block; 608. Spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-5 As shown, this utility model is a high-temperature resistant protective sleeve for injection molding machine barrels, including a protective sleeve body 1. A connecting rope 2 is sewn to one end of the protective sleeve body 1. A first connecting block 3 is fixedly installed at one end of the connecting rope 2. An installation groove is opened at one end of the first connecting block 3, and a second connecting block 4 is installed inside the installation groove. An opening is opened at the other end of the second connecting block 4, and a connecting rod 5 is fixedly connected inside the opening. The other end of the connecting rope 2 passes through the opening and extends outward. A through-hole is opened on the outer side of the first connecting block 3, and a protrusion is provided on the outer side of the second connecting block 4. The protrusion is engaged inside the through-hole. An installation hole is opened at one end of the first connecting block 3, and the other end of the installation hole passes through the second connecting block 4 and extends outward. A reinforcing structure 6 is provided inside the installation hole. The reinforcing structure 6 includes components installed inside the installation hole. The mounting block 601 has a rectangular block 602 at one end and a fixing hole at the other end. A housing 603 is provided at one end of the mounting block 601, and one end of the mounting block 601 is located inside the housing 603. A support frame 604 is provided on the outside of the housing 603. A through hole is provided on the outside of the support frame 604. A moving rod 605 is slidably connected inside the through hole. A pull block 606 is provided at one end of the moving rod 605. A fixing block 607 is provided at the other end of the moving rod 605. One end of the fixing block 607 passes through the housing 603 and is fitted inside the fixing hole. A spring 608 is sleeved on the outside of the moving rod 605. One end of the spring 608 is fixedly installed on the outside of the support frame 604, and the other end of the spring 608 is fixedly installed on the outside of the fixing block 607.

[0027] The outer side of the connecting rope 2 is provided with a T-shaped limiting post, and the free end of the connecting rope 2 is provided with a through hole;

[0028] Among them, through the snap-fit ​​of the first connecting block 3 and the second connecting block 4, the spring pin mechanical locking of the reinforcing structure 6, and the lever tightening action of the connecting rod 5, a mechanical fastening structure without heat-sensitive adhesive components is formed. This structure not only remains stable in high-temperature environments, avoiding the decrease in fixing force caused by material thermal aging, but also its rigid connection characteristics completely eliminate the risk of loosening caused by vibration or material fatigue, ensuring the durable fastening and heat preservation integrity of the protective sleeve body 1 under long-term high-temperature conditions, thus solving the technical pain point of unreliable fastening of traditional Velcro.

[0029] One end of the fixing block 607 has an inclined surface;

[0030] One end of the mounting block 601 has an arc-shaped surface that matches the inclined surface;

[0031] Both rectangular block 602 and pull block 606 have anti-slip stripes on their outer sides;

[0032] When operating the reinforcing structure 6 to lock or unlock, the operator needs to apply force to the rectangular block 602 to insert or pull out the mounting block 601, and pull the pull block 606 to overcome the force of the spring 608 to disengage the fixing block 607 from the fixing hole. During this process, the anti-slip stripes on the outer side of the rectangular block 602 and the pull block 606 significantly increase the coefficient of friction between the fingers and the contact surface, effectively preventing slippage or slippage caused by hand slippage or oil contamination during the application of force. This ensures that even in workshop environments where the operator is wearing gloves or has oil on their hands, they can still apply precise and reliable control force to the locking mechanism, thereby ensuring the safety, smoothness and efficiency of the entire mechanical locking process.

[0033] The surface of the protective sleeve body 1 is coated with a ceramic coating;

[0034] Among them, the ceramic coating on the surface of the protective sleeve body 1 effectively blocks the heat radiation and heat convection of the barrel to the surrounding environment through its inherent high thermal stability and low thermal conductivity, thus enhancing the overall energy-saving and heat-insulating effect.

[0035] The support frame 604 and the housing 603 are fixed together as an integral structure by welding;

[0036] The welding process creates a rigid connection between the two components, completely eliminating the risk of loosening that may occur with traditional fixing methods such as bolt connections under the long-term vibration environment of injection molding machines, while also enhancing the mechanical strength and stability of the overall structure.

[0037] When installing the protective sleeve body 1, firstly, the protrusion of the second connecting block 4 is inserted into the through-hole of the first connecting block 3 to achieve pre-positioning. Then, the mounting block 601 of the reinforcing structure 6 is inserted axially into the mounting hole where the two are aligned. When inserted, the inclined surface at the front end of the fixing block 607 is compressed, causing the spring 608 to compress. When the fixing block 607 slides to the fixing hole position of the mounting block 601, the spring 608 quickly pushes the fixing block 607 into the hole to complete the rigid mechanical locking. At this time, the user pulls the free end of the connecting rope 2 so that it passes through the connecting rod 5 in the opening of the second connecting block 4, which can tighten the protective sleeve body 1 by lever principle. Finally, the rope end through-hole is put on the preset T-shaped limit post to prevent loosening.

[0038] When disassembling the protective sleeve body 1, its mechanical fastening must first be released: the operator pulls the pull block 606 of the reinforcing structure 6 outward to overcome the elastic force of the spring 608 and make the fixing block 607 exit from the fixing hole of the mounting block 601. The entire reinforcing structure 6 can then be pulled out axially from the mounting holes of the first connecting block 3 and the second connecting block 4 like a pin. Subsequently, a separating force is applied to make the protrusion on the outside of the second connecting block 4 disengage from the opening of the first connecting block 3, thereby releasing the engagement between the two and making the connecting rope 2 completely loose. Finally, the protective sleeve body 1 loses tension and can be smoothly removed from the injection molding machine barrel, completing the entire disassembly process.

[0039] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A high-temperature resistant protective sleeve for injection molding machine barrels, comprising a protective sleeve body (1), wherein a connecting rope (2) is sewn onto one end of the protective sleeve body (1), characterized in that: One end of the connecting rope (2) is fixedly installed with a first connecting block (3), one end of the first connecting block (3) is provided with an installation groove, a second connecting block (4) is installed inside the installation groove, the other end of the second connecting block (4) is provided with an opening, a connecting rod (5) is fixedly connected inside the opening, and the other end of the connecting rope (2) passes through the opening and extends outward. The first connecting block (3) has an opening on its outer side, and the second connecting block (4) has a protrusion on its outer side, which is engaged with the inside of the opening; One end of the first connecting block (3) is provided with a mounting hole, and the other end of the mounting hole passes through the second connecting block (4) and extends outward. A reinforcing structure (6) is provided inside the mounting hole. The reinforcement structure (6) includes a mounting block (601) installed in the mounting hole. One end of the mounting block (601) is provided with a rectangular block (602), and the other end of the mounting block (601) is provided with a fixing hole. One end of the mounting block (601) is provided with a housing (603), and one end of the mounting block (601) is located inside the housing (603). A support frame (604) is provided on the outside of the housing (603). A through hole is opened on the outside of the support frame (604). A moving rod (605) is slidably connected inside the through hole. One end of the moving rod (605) is provided with a pull block (606), and the other end of the moving rod (605) is provided with a fixing block (607). One end of the fixing block (607) penetrates the housing (603) and is fitted inside the fixing hole. A spring (608) is sleeved on the outside of the movable rod (605). One end of the spring (608) is fixedly installed on the outside of the support frame (604), and the other end of the spring (608) is fixedly installed on the outside of the fixing block (607).

2. The high-temperature resistant protective sleeve for injection molding machine barrels according to claim 1, characterized in that: One end of the fixing block (607) has an inclined surface.

3. The high-temperature resistant protective sleeve for injection molding machine barrels according to claim 2, characterized in that: One end of the mounting block (601) has an arc-shaped surface that matches the inclined surface.

4. The high-temperature resistant protective sleeve for injection molding machine barrels according to claim 1, characterized in that: Both the rectangular block (602) and the pull block (606) have anti-slip stripes on their outer sides.

5. The high-temperature resistant protective sleeve for injection molding machine barrels according to claim 1, characterized in that: The surface of the protective sleeve body (1) is coated with a ceramic coating.

6. The high-temperature resistant protective sleeve for injection molding machine barrels according to claim 1, characterized in that: The support frame (604) and the housing (603) are fixed together by welding to form an integral structure.

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