Heat preservation device of injection molding machine pipeline

Abstract

The utility model discloses a heat preservation device of an injection molding machine pipeline, which comprises a shell, clamping sleeves and a heat insulation ceramic plate, the heat insulation ceramic plate which is detachably connected is arranged in the shell, the two ends of the shell are respectively provided with a pair of clamping sleeves which are detachably connected, and the shell comprises a first shell and a second shell. One sides of the first shell and the second shell are connected through a hinge, and the other sides are connected through an elastic locking mechanism. The elastic locking mechanism comprises positioning blocks, bolts, nuts and springs, the corresponding positioning blocks are arranged on the sides, away from the hinge, of the first shell and the second shell, one ends of the bolts penetrate through the positioning blocks and are in threaded connection with the nuts, the springs are arranged between the nuts and the positioning blocks, and the springs are in a compressed state. When the heat preservation device is used, the heat preservation device can be tightly assembled with the injection molding machine pipeline all the time under the influence of thermal deformation, and good heat preservation performance is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding equipment, in particular to a heat preservation device for a pipeline of an injection molding machine. Background Art

[0002] The injection molding machine heats the plastic to melt it, and applies high pressure to the molten plastic to make it ejected and fill the mold cavity. After cooling, the injection molded product is separated from the mold cavity to obtain the injection molded product. In the prior art, a heating device is usually provided on the injection molding pipe of the injection molding machine, so that after the plastic raw material enters the injection molding pipe from the feeder, it can be quickly heated and melted into liquid plastic. The liquid plastic in the injection molding pipe is squeezed into the mold cavity through the nozzle after the air pressure is adjusted by the system. In order to save energy, the prior art provides an insulation structure on the outside of the injection molding pipe. The existing insulation structure is generally provided with an insulation layer and an outer shell on the surface of the injection molding pipe. Due to the different thermal expansion coefficients of the insulation layer and the outer shell, as the use time increases, the insulation structure is easily affected by temperature changes and undergoes irreversible deformation. Therefore, the insulation structure is not tightly assembled and shows signs of looseness, and the insulation effect is greatly reduced. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a heat preservation device for a pipeline of an injection molding machine.

[0004] The technical solution of the utility model is: a heat preservation device for an injection molding machine pipeline, comprising a shell, a ferrule and an insulating ceramic plate, a detachably connected insulating ceramic plate is provided inside the shell, a pair of detachably connected ferrules are respectively provided at both ends of the shell, the shell comprises a first shell and a second shell, one side of the first shell and the second shell are connected by a hinge, and the other side is connected by an elastic locking mechanism; the elastic locking mechanism comprises a positioning block, a bolt, a nut, and a spring, the first shell and the second shell are provided with corresponding positioning blocks on the side away from the hinge, one end of the bolt passes through the positioning block and is threadedly connected to the nut, a spring is provided between the nut and the positioning block, and the spring is in a compressed state.

[0005] Furthermore, the outer side of the shell is provided with anti-slip grooves.

[0006] Furthermore, the ferrule includes a cylinder and an outer edge, the inner wall of the cylinder fits with the injection molding machine pipe, the end face of the outer shell is provided with a groove matching the outer edge, the bottom face of the groove is provided with a plurality of positioning holes, the outer edge is provided with a through hole corresponding to the positioning hole, the through hole is provided with a first bolt, one end of the first bolt passes through the through hole and is screwed into the positioning hole.

[0007] Furthermore, second sealing gaskets are provided at both ends of the outer edge, and the second sealing gaskets of adjacent ferrules can fit each other.

[0008] Furthermore, the inner walls of the ends of the shell are provided with slots matching the ends of the heat-insulating ceramic plate, and the sides of the slots are provided with second bolts, which pass through the slots and are screwed into the heat-insulating ceramic plate.

[0009] Furthermore, a protrusion is provided at one end of the first shell away from the hinge, and a positioning groove matching the protrusion is provided at one end of the second shell away from the hinge. The positioning groove has a reserved depth, and the depth of the positioning groove is deeper than the length of the protrusion.

[0010] Furthermore, a first sealing gasket is provided at one end of the first housing away from the hinge, and the first sealing gasket can be fitted with one end of the second housing away from the hinge.

[0011] Compared with the prior art, the advantages of the utility model are: the shell can be opened and closed freely, which is convenient for installation and disassembly; the clamping sleeve at the end of the shell fills the gap between the shell and the injection molding machine pipeline to prevent temperature from dissipating from the end face of the shell; the first shell and the second shell are elastically connected at one end away from the hinge through an elastic locking mechanism, so that when the shell is thermally deformed, it can be automatically assembled tightly by using a compressed spring to prevent the shell from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is an overall schematic diagram of the utility model;

[0014] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0015] Figure 3 This is an exploded view of the utility model;

[0016] Figure 4 for Figure 3 The enlarged view of point B in the middle;

[0017] Figure 5 for Figure 3 Enlarged view of point C in the middle;

[0018] Figure 6 It is a schematic diagram of the ferrule of the utility model.

[0019] Wherein: 1. first shell; 2. second shell; 3. ferrule; 4. elastic locking mechanism; 5. heat-insulating ceramic plate; 11. groove; 12. positioning hole; 13. first sealing gasket; 14. protrusion; 21. positioning groove; 31. cylinder; 32. outer edge; 33. first bolt; 34. second sealing gasket; 41. positioning block; 42. screw; 43. nut; 44. spring; 51. slot; 52. second bolt. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0021] The specific implementation of the utility model will be described below in conjunction with the accompanying drawings:

[0022] like Figures 1 to 6 As shown, a heat preservation device for an injection molding machine pipeline includes a shell, a sleeve 3 and an insulating ceramic plate 5. The outer side of the shell is provided with anti-skid grooves, and the shell is easy to operate during assembly. The inner wall of the end of the shell is provided with a slot 51 that matches the end of the insulating ceramic plate 5, and the side of the slot 51 is provided with a second bolt 52, which passes through the slot 51 and is screwed into the insulating ceramic plate 5. The detachably connected insulating ceramic plate 5 facilitates the maintenance or replacement of the insulating ceramic plate 5.

[0023] A pair of detachably connected ferrules 3 are respectively provided at both ends of the shell. The ferrule 3 includes a barrel 31 and an outer edge 32. The inner wall of the barrel 31 fits the injection molding machine pipe. The end face of the shell is provided with a groove 11 matching the outer edge 32. The bottom surface of the groove 11 is provided with a plurality of positioning holes 12. The outer edge 32 is provided with a through hole corresponding to the positioning hole 12. The through hole is provided with a first bolt 33. One end of the first bolt 33 passes through the through hole and is screwed into the positioning hole 12. The ferrule 3 fills the gap between the shell and the injection molding machine pipe to prevent heat from being lost from the end face of the shell. The detachable ferrule 3 facilitates the adaptation of ferrules 3 of different sizes to injection molding machine pipes of different models. A second sealing gasket 34 is provided at both ends of the outer edge 32, and the second sealing gaskets 34 of adjacent ferrules 3 can fit each other. The second sealing gasket 34 is made of a heat-insulating elastic material to improve the sealing of the shell assembly.

[0024] The housing includes a first housing 1 and a second housing 2. One side of the first housing 1 and the second housing 2 are connected by a hinge, and the other side is connected by an elastic locking mechanism 4. The elastic locking mechanism 4 includes a positioning block 41, a bolt, a nut 43, and a spring 44. The first housing 1 and the second housing 2 are provided with positioning blocks 41 corresponding to each other on the side away from the hinge. One end of the bolt passes through the positioning block 41 and is threadedly connected with the nut 43. A spring 44 is provided between the nut 43 and the positioning block 41, and the spring 44 is in a compressed state. A protrusion 14 is provided at the end of the first housing 1 away from the hinge, and a positioning groove 21 matching the protrusion 14 is provided at the end of the second housing 2 away from the hinge. The positioning groove 21 is provided with a reserved depth, and the depth of the positioning groove 21 is deeper than the length of the protrusion 14. A first sealing gasket 13 is provided at the end of the first housing 1 away from the hinge, and the first sealing gasket 13 can fit with the end of the second housing 2 away from the hinge. When the elastic locking mechanism 4 elastically connects the first shell 1 and the second shell 2, the shell is tightly assembled with the injection molding machine pipe. Even if the shell is thermally deformed as the use time increases, the elastic deformation force of the compressed spring 44 is used to automatically squeeze the first sealing gasket 13 and the second sealing gasket 34, so that the protrusion 14 is embedded in the reserved depth of the positioning groove 21. The shell thus overcomes the influence of thermal deformation and is automatically assembled tightly.

[0025] The working principle of the specific embodiment of the utility model is as follows: according to the size of the injection molding machine pipeline, a suitable ferrule 3 is selected, and the ferrule 3 is installed on the end face of the shell. The shell is put on the outside of the injection molding machine pipeline, and the first shell 1 and the second shell 2 are locked by the elastic locking mechanism 4. The deformation elastic force of the compressed spring 44 is used to enable the first shell 1 and the second shell 2 to respond to the influence of thermal deformation in real time, maintain a tight assembly state, and prevent signs of looseness.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an element centered thereon. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an element centered thereon. The terms "upper", "lower", "left", "right", "front", "rear" and similar expressions used herein are for illustrative purposes only.

[0027] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A heat preservation device for an injection molding machine pipeline, characterized in that: The invention comprises a shell, a ferrule (3) and a heat-insulating ceramic plate (5), wherein the heat-insulating ceramic plate (5) is detachably connected inside the shell, and a pair of detachably connected ferrules (3) are respectively provided at both ends of the shell. The shell comprises a first shell (1) and a second shell (2), wherein the first shell (1) is connected to the second shell (2) on one side by a hinge, and is connected on the other side by an elastic locking mechanism (4); the elastic locking mechanism (4) comprises a positioning block (41), a bolt, a nut (43), and a spring (44); the first shell (1) and the second shell (2) are both provided with corresponding positioning blocks (41) on the side away from the hinge, one end of the bolt passes through the positioning block (41) and is threadedly connected to the nut (43), and the spring (44) is provided between the nut (43) and the positioning block (41), and the spring (44) is in a compressed state.

2. The heat preservation device for the injection molding machine pipeline according to claim 1, characterized in that: The outer side surface of the shell is provided with anti-slip grooves.

3. The heat preservation device for the pipe of the injection molding machine according to claim 1, characterized in that: The ferrule (3) comprises a cylinder (31) and an outer edge (32), the inner wall of the cylinder (31) is fitted with an injection molding machine pipe, the end surface of the shell is provided with a groove (11) matching the outer edge (32), the bottom surface of the groove (11) is provided with a plurality of positioning holes (12), the outer edge (32) is provided with a through hole corresponding to the positioning hole (12), the through hole is provided with a first bolt (33), one end of the first bolt (33) passes through the through hole and is screwed into the positioning hole (12).

4. The heat preservation device for the pipe of the injection molding machine according to claim 3, characterized in that: Second sealing pads (34) are provided at both ends of the outer edge (32), and the second sealing pads (34) of adjacent ferrules (3) can fit together.

5. The heat preservation device for the pipe of the injection molding machine according to claim 1, characterized in that: The inner wall of the end of the shell is provided with a slot (51) matching the end of the thermal insulation ceramic plate (5), and the side of the slot (51) is provided with a second bolt (52), and the second bolt (52) passes through the slot (51) and is screwed into the thermal insulation ceramic plate (5).

6. The heat preservation device for the pipe of the injection molding machine according to claim 1, characterized in that: A protrusion (14) is provided at one end of the first housing (1) away from the hinge, and a positioning groove (21) matching the protrusion (14) is provided at one end of the second housing (2) away from the hinge, wherein the positioning groove (21) has a reserved depth, and the depth of the positioning groove (21) is deeper than the length of the protrusion (14).

7. The heat preservation device for the pipe of the injection molding machine according to claim 1, characterized in that: A first sealing gasket (13) is provided at one end of the first housing (1) away from the hinge, and the first sealing gasket (13) is in contact with one end of the second housing (2) away from the hinge.

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