Air cylinder heat insulation structure

Abstract

The utility model discloses an air cylinder heat insulation structure, which belongs to the technical field of hot runners and comprises a bottom plate, an air cylinder body, a heat source and a heat insulation component for protecting the air cylinder body, a piston rod of the air cylinder body penetrates through the inside of the bottom plate, a cylinder body part of the air cylinder body is fixedly connected to the top of the bottom plate, and the heat source is fixedly connected to one side of the top of the bottom plate. The heat insulation assembly is arranged between the air cylinder body and the heat source and comprises a frame plate fixedly arranged on the cylinder body part of the air cylinder body, an upper baffle is detachably installed in the frame plate, and a heat insulation plate is fixedly connected to the bottom of the upper baffle. According to the air cylinder heat insulation structure, the upper baffle is installed at a proper position under the action of the frame plate, the heat insulation plate is located between the air cylinder body and a heat source at the moment, the heat insulation plate is made of a stainless steel sheet and has high reflectivity, high-temperature radiation of the heat source is reflected back under the action of the heat insulation plate, and the heat influence on the air cylinder body is reduced; the service life of the cylinder body is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of hot runner, and specifically relates to a cylinder heat insulation structure. Background Art

[0002] The hot runner is an advanced technology in injection molds. The hot runner system conveys the molten plastic material from the injection nozzle of the injection molding machine to each mold cavity through a heated runner. Among them, the movement of the valve pin is driven by an integral cylinder of the hot runner, which can accurately control the injection start time, injection speed, and injection volume of the plastic melt.

[0003] In the existing technology, the integral cylinder of the hot runner is usually installed near the heat source to quickly control the injection of the plastic melt. However, in the design process of the integral cylinder of the hot runner, the cylinder body may be too close to the main nozzle, the manifold plate, etc., which may cause the high temperature of the cylinder and the manifold plate, the main nozzle, etc. to conduct heat to the cylinder through heat radiation, resulting in too high a temperature of the cylinder. Since the sealing ring of the cylinder is made of rubber, the long-term high temperature will cause the sealing ring to fail.

[0004] For the problems in the related technology, no effective solution has been proposed yet. Summary of the Utility Model

[0005] In view of the deficiencies of the above-mentioned prior art, the purpose of the present utility model is to provide a cylinder heat insulation structure, aiming to solve the problem that when the cylinder body is too close to the main nozzle, the manifold plate, etc., the high temperature of the cylinder and the manifold plate, the main nozzle, etc. may conduct heat to the cylinder through heat radiation, resulting in too high a temperature of the cylinder.

[0006] In order to achieve the above purpose, the present utility model adopts the following technical scheme:

[0007] A cylinder heat insulation structure includes a bottom plate, a cylinder body, a heat source, and a heat insulation component for protecting the cylinder body. The piston rod of the cylinder body penetrates through the inside of the bottom plate, the cylinder body part of the cylinder body is fixedly connected to the top of the bottom plate, the heat source is fixedly connected to one side of the top of the bottom plate, the heat insulation component is arranged between the cylinder body and the heat source, the heat insulation component includes a frame plate fixed on the cylinder body part of the cylinder body, an upper baffle is detachably installed inside the frame plate, and a heat insulation plate is fixedly connected to the bottom of the upper baffle.

[0008] As a further improvement of the above technical solution, a positioning groove is opened at the top of the frame plate, an installation groove is penetrated through the frame plate through the positioning groove, the heat insulation plate penetrates through the inside of the frame plate through the positioning groove and the installation groove, and the upper baffle is attached to the frame plate through the positioning groove. By setting the positioning groove and the installation groove, it is convenient for the installation of the upper baffle and for the heat insulation plate to penetrate through the inside of the frame plate.

[0009] As a further improvement of the above technical solution, two positioning rods are slidably connected to the rack plate. A pull rod is fixedly connected to one side of the two positioning rods adjacent to each other. Two return springs are fixedly connected to the side of the rack plate away from the cylinder body, and the two positioning rods correspond to the two return springs one by one. By setting the positioning rods, the pull rod and the return springs, the heat insulation plate is limited.

[0010] As a further improvement of the above technical solution, a first positioning hole is provided on the rack plate, a second positioning hole is provided on the heat insulation plate, the inner circumference of the first positioning hole is equal to the inner circumference of the second positioning hole, and the positioning rod passes through the inside of the rack plate and the heat insulation plate through the first positioning hole and the second positioning hole. By setting the first positioning hole and the second positioning hole, it is convenient for the positioning rod to penetrate the rack plate and the heat insulation plate.

[0011] As a further improvement of the above technical solution, a lifting rod is slidably connected to the inside of the rack plate. A telescopic spring is fixedly connected to the bottom of the lifting rod, the bottom of the telescopic spring is fixedly connected to the inside of the rack plate, and the top of the lifting rod abuts against the bottom of the upper baffle. By setting the lifting rod and the telescopic spring, the upper baffle is lifted from the inside of the rack plate, which is convenient for the upper baffle to be removed.

[0012] As a further improvement of the above technical solution, an arc-shaped mounting plate is fixedly connected to the cylinder body of the cylinder. A reinforcing plate is fixedly connected to the outer side wall of the arc-shaped mounting plate, and the reinforcing plate is fixedly connected to the central axis on one side of the rack plate. By setting the arc-shaped mounting plate and the reinforcing plate, the middle area of the rack plate is further supported.

[0013] In summary, the technical effects and advantages of the present invention: For this cylinder heat insulation structure, through the action of the rack plate, the upper baffle is installed at a suitable position. At this time, the heat insulation plate is located between the cylinder body and the heat source. The heat insulation plate is made of a stainless steel thin plate and has a high reflectivity. Then, through the action of the heat insulation plate, the high-temperature radiation of the heat source is reflected back, reducing the heat influence on the cylinder body and extending the service life of the cylinder body.

[0014] Through the combined use of the positioning rod, the pull rod, the return spring, the first positioning hole and the second positioning hole, the heat insulation plate is limited. Then, through the combined use of the lifting rod and the telescopic spring, when the upper baffle is disassembled, the upper baffle is lifted, which is convenient for the upper baffle to be removed from the inside of the rack plate, so as to facilitate the detachable installation of the heat insulation plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0016] Figure 2 is a schematic diagram of the heat insulation component and its related structure of the present invention;

[0017] Figure 3 Explosion diagram of the heat insulation plate and its related structure of the present utility model;

[0018] Figure 4 Schematic diagram of the lifting rod and its related structure of the present utility model.

[0019] In the figure: 1, bottom plate; 2, cylinder body; 3, heat source;

[0020] 4, heat insulation assembly; 41, shelf board; 42, upper baffle; 43, heat insulation plate; 44, positioning groove; 45, installation groove; 46, positioning rod; 47, pull rod; 48, return spring; 49, first positioning hole; 410, second positioning hole; 411, lifting rod; 412, telescopic spring;

[0021] 5, arc-shaped mounting plate; 6, reinforcement plate. Specific implementation mode

[0022] The present utility model provides a cylinder heat insulation structure. To make the purpose, technical solution and effects of the present utility model clearer and more definite, the following further elaborates on the present utility model with reference to the accompanying drawings and by way of examples. It should be understood that the specific examples described herein are only used to explain the present utility model and are not used to limit the protection scope of the present utility model.

[0023] As Figure 1 - Figure 4 shown, this embodiment provides a technical solution: a cylinder heat insulation structure, including a bottom plate 1, a cylinder body 2, a heat source 3 and a heat insulation assembly 4 for protecting the cylinder body 2. The piston rod of the cylinder body 2 penetrates through the inside of the bottom plate 1, and the cylinder body 2 is installed on the bottom plate 1 through a plurality of bolts. The cylinder part of the cylinder body 2 is fixedly connected to the top of the bottom plate 1. The heat source 3 is fixedly connected to one side of the top of the bottom plate 1. The heat source 3 is fixed on the left side of the top of the bottom plate 1. The cylinder body 2 is located on the right side of the top of the bottom plate 1. The heat insulation assembly 4 is arranged between the cylinder body 2 and the heat source 3. The heat insulation assembly 4 includes a shelf board 41 fixedly arranged on the cylinder part of the cylinder body 2. The shelf board 41 is located on the left side of the bottom plate 1. An upper baffle 42 is detachably installed inside the shelf board 41. The upper baffle 42 is located inside the shelf board 41. The bottom of the upper baffle 42 is fixedly connected to a heat insulation plate 43. The heat insulation plate 43 is made of 304 high-quality stainless steel thin plate. Since the surface of the stainless steel is bright and has a high reflectivity, it can reflect the excess heat radiation and reduce the heat coming from the heat radiation. The heat insulation plate 43 is located directly below the upper baffle 42. After the upper baffle 42 and the heat insulation plate 43 are moved and installed between the cylinder body 2 and the heat source 3, the upper baffle 42 fits with the shelf board 41, so that the heat insulation plate 43 is installed at a specific position. After the heat source 3 generates heat, the heat insulation plate 43 reflects the high-temperature radiation of the heat source 3 back, reducing the heat impact on the cylinder body 2 and improving the service life of the sealing ring on the cylinder body 2.

[0024] As Figure 3 shown, a positioning groove 44 is formed at the top of the shelf plate 41. An installation groove 45 is formed through the shelf plate 41 via the positioning groove 44. The inner circumference of the positioning groove 44 is equal to the outer circumference of the upper baffle plate 42. The heat insulation plate 43 passes through the inside of the shelf plate 41 via the positioning groove 44 and the installation groove 45. The upper baffle plate 42 is attached to the shelf plate 41 via the positioning groove 44. The positioning groove 44 facilitates the fitting connection between the upper baffle plate 42 and the shelf plate 41. The installation groove 45 enables the heat insulation plate 43 to pass through the shelf plate 41, thus facilitating the installation of the heat insulation plate 43 between the cylinder body 2 and the heat source 3.

[0025] As Figure 3 shown, two positioning rods 46 are slidably connected to the shelf plate 41. A pull rod 47 is fixedly connected to the adjacent sides of the two positioning rods 46. Two reset springs 48 are fixedly connected to the side of the shelf plate 41 away from the cylinder body 2. The reset springs 48 are wound around the outer sides of the positioning rods 46, and the two positioning rods 46 correspond to the two reset springs 48 one by one. By driving the positioning rods 46 to move through the pull rod 47, the reset springs 48 reset or adjust the positioning rods 46. The reset springs 48 keep the positioning rods 46 stable inside the first positioning holes 49 and the second positioning holes 410, facilitating the positioning rods 46 to limit the heat insulation plate 43.

[0026] As Figure 3 shown, two first positioning holes 49 are formed in the shelf plate 41. The two first positioning holes 49 are symmetrically distributed with the central axis of the shelf plate 41 as the center. Second positioning holes 410 are formed in the heat insulation plate 43. The inner circumference of the first positioning holes 49 is equal to the inner circumference of the second positioning holes 410. The positioning rods 46 pass through the inside of the shelf plate 41 and the heat insulation plate 43 via the first positioning holes 49 and the second positioning holes 410. After the upper baffle plate 42 is attached to the shelf plate 41, when the first positioning holes 49 and the second positioning holes 410 are in a coaxial state, the positioning rods 46 pass through the shelf plate 41 and the heat insulation plate 43 via the first positioning holes 49 and the second positioning holes 410, thereby performing a limiting process on the heat insulation plate 43.

[0027] As Figure 3-4 shown, four lifting rods 411 are slidably connected to the inside of the shelf plate 41. The four lifting rods 411 are evenly distributed inside the shelf plate 41. A telescopic spring 412 is fixedly connected to the bottom of the lifting rod 411. The number of the lifting rods 411 and the telescopic springs 412 is equal and they correspond to each other one by one. The bottom of the telescopic spring 412 is fixedly connected to the inside of the shelf plate 41. The top of the lifting rod 411 abuts against the bottom of the upper baffle plate 42. When disassembling the upper baffle plate 42, when the upper baffle plate 42 no longer applies a force to the lifting rod 411, the telescopic spring 412 bounces up the lifting rod 411, making the height of the top of the upper baffle plate 42 higher than the height of the top of the shelf plate 41, facilitating the removal of the upper baffle plate 42 from the inside of the shelf plate 41.

[0028] As shown Figure 2 In the figure, an arc-shaped mounting plate 5 is fixedly connected to the cylinder block part of the cylinder body 2. The arc-shaped mounting plate 5 is arranged in an arc shape. A reinforcing plate 6 is fixedly connected to the outer side wall of the arc-shaped mounting plate 5. The reinforcing plate 6 is fixedly connected to the central axis on one side of the frame plate 41. The reinforcing plate 6 is located between the arc-shaped mounting plate 5 and the frame plate 41. The arc-shaped mounting plate 5 and the reinforcing plate 6 further increase the stability of the middle area of the frame plate 41 during use.

[0029] Working principle: First, install the cylinder body 2 on one side of the bottom plate 1. An insulating component 4 is added between the cylinder body 2 and the heat source 3. The heat insulating plate 43 passes through the inside of the frame plate 41 through the positioning groove 44 and the installation groove 45. The upper baffle 42 moves through the positioning groove 44 to fit with the inside of the frame plate 41. Press the upper baffle 42. The upper baffle 42 applies pressure to the lifting rod 411, and the telescopic spring 412 is compressed and deformed. At this time, the second positioning hole 410 and the first positioning hole 49 are coaxial. During the process of the heat insulating plate 43 moving downward, the pull rod 47 drives the positioning rod 46 to move away from the frame plate 41, and the reset spring 48 is stretched and elongated. When the upper baffle 42 moves to fit with the frame plate 41, cancel the acting force on the pull rod 47, so that the positioning rod 46 passes through the frame plate 41 and the upper baffle 42 through the first positioning hole 49 and the second positioning hole 410 respectively, thereby fixing the heat insulating plate 43, and further facilitating the installation and disassembly of the heat insulating plate 43, and then reflecting the high-temperature radiation of the heat source 3 back;

[0030] When disassembling the heat insulating plate 43, due to the telescopic spring 412 no longer being affected by the pressure, the lifting rod 411 bounces upward, so that the height of the top of the upper baffle 42 moves higher than the height of the top of the frame plate 41, thus facilitating the upper baffle 42 to move out of the inside of the frame plate 41.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0032] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] It can be understood that for those of ordinary skill in the art, equivalent substitutions or changes can be made according to the technical solutions and the inventive concept of the present utility model, and all such changes or substitutions should fall within the protection scope of the present utility model.

Claims

1. A cylinder heat insulation structure, characterized in that, It includes a bottom plate (1), a cylinder body (2), a heat source (3), and a heat insulation component (4) for protecting the cylinder body (2). The piston rod of the cylinder body (2) penetrates through the inside of the bottom plate (1). The cylinder part of the cylinder body (2) is fixedly connected to the top of the bottom plate (1). The heat source (3) is fixedly connected to one side of the top of the bottom plate (1). The heat insulation component (4) is arranged between the cylinder body (2) and the heat source (3). The heat insulation component (4) includes a support plate (41) fixed on the cylinder part of the cylinder body (2). A top baffle (42) is detachably installed inside the support plate (41). A heat insulation plate (43) is fixedly connected to the bottom of the top baffle (42).

2. The cylinder heat insulation structure according to claim 1, characterized in that, A positioning groove (44) is formed at the top of the support plate (41). An installation groove (45) is formed through the support plate (41) via the positioning groove (44). The heat insulation plate (43) penetrates through the inside of the support plate (41) via the positioning groove (44) and the installation groove (45). The top baffle (42) fits with the support plate (41) via the positioning groove (44).

3. The cylinder heat insulation structure according to claim 1, wherein, Two positioning rods (46) are slidably connected to the support plate (41). A pull rod (47) is fixedly connected to the adjacent sides of the two positioning rods (46). Two reset springs (48) are fixedly connected to the side of the support plate (41) away from the cylinder body (2), and the two positioning rods (46) correspond to the two reset springs (48) one by one.

4. A cylinder heat insulation structure according to claim 3, characterized in that, A first positioning hole (49) is formed on the support plate (41). A second positioning hole (410) is formed on the heat insulation plate (43). The inner circumference of the first positioning hole (49) is equal to the inner circumference of the second positioning hole (410). The positioning rod (46) penetrates through the inside of the support plate (41) and the heat insulation plate (43) via the first positioning hole (49) and the second positioning hole (410).

5. A cylinder heat insulation structure according to claim 1, characterized in that, A lifting rod (411) is slidably connected to the inside of the support plate (41). A telescopic spring (412) is fixedly connected to the bottom of the lifting rod (411). The bottom of the telescopic spring (412) is fixedly connected to the inside of the support plate (41). The top of the lifting rod (411) abuts against the bottom of the top baffle (42).

6. The cylinder heat insulation structure according to claim 1, characterized in that, An arc-shaped mounting plate (5) is fixedly connected to the cylinder part of the cylinder body (2). A reinforcing plate (6) is fixedly connected to the outer side wall of the arc-shaped mounting plate (5). The reinforcing plate (6) is fixedly connected to the central axis on one side of the support plate (41).

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