Heating system for machine barrel of injection molding machine

Abstract

The utility model discloses an injection molding machine barrel heating system, which belongs to the technical field of injection molding machine heating, and comprises a heating barrel, two fixing covers are symmetrically arranged on the outer side of the heating barrel, the middle parts of the fixing covers are fixedly connected with clamping sleeves, the outer surface of the heating barrel is provided with a mounting groove, and the clamping sleeves are fixedly connected with the mounting grooves. Limiting blocks are fixedly connected to the two ends, close to the upper side and the lower side, of the mounting groove, a heat preservation plate is arranged in the middle of the opposite faces of the heating cylinder and the clamping sleeve, limiting grooves are formed in the two ends, close to the upper side and the lower side, of the clamping sleeve, a heating coil is fixedly connected to the interior of the heating cylinder, and a clamping strip is fixedly connected to the middle of the outer side of the heat preservation plate. According to the scheme, the heat preservation structure convenient to mount and dismount is arranged, later maintenance and replacement of heat preservation parts are facilitated, heat dissipation can be effectively avoided, the heat utilization rate is increased, and therefore energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machine heating, and more specifically to a barrel heating system for an injection molding machine. Background Art

[0002] The injection molding machine is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. The barrel of the injection molding machine is an important part of the injection molding machine. It works with the screw, contains the screw and rotates inside it to complete the injection molding work. The outside of the barrel is equipped with a heating system, whose job is to transfer heat inside the barrel to complete the melting and heating of the injection molding raw materials.

[0003] Based on the above, the inventors found that the existing heating system is mainly composed of a heating coil, and an insulation structure is provided on the outside of the coil to reduce heat loss. However, the insulation structure is complex and inconvenient for subsequent maintenance. Therefore, in view of this, the inventors studied and improved the existing structure and provided an injection molding machine barrel heating system in order to achieve a more practical purpose. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] In response to the problems existing in the prior art, the purpose of the present utility model is to provide an injection molding machine barrel heating system. This solution is equipped with an insulation structure that is easy to install and disassemble, which is convenient for the later maintenance and replacement of insulation parts. It can effectively avoid heat energy dissipation, improve heat utilization, and thus reduce energy consumption.

[0006] 2. Technical solution

[0007] In order to solve the above problems, the present invention adopts the following technical solutions.

[0008] A barrel heating system for an injection molding machine comprises a heating barrel, two fixed covers are symmetrically provided on the outside of the heating barrel, a clamping sleeve is fixedly connected to the middle of the fixed cover, a mounting groove is provided on the outer surface of the heating barrel, and both ends of the mounting groove are fixedly connected to limiting blocks on the upper and lower sides, an insulation plate is centrally provided on the opposite surfaces of the heating barrel and the clamping sleeve, and limiting grooves are provided on the upper and lower sides of both ends of the clamping sleeve, a heating coil is fixedly connected to the inside of the heating barrel, a clamping strip is fixedly connected to the center of the outer side of the insulation plate, and clamping plates are fixedly connected to both ends of the insulation plate.

[0009] Furthermore, mounting plates are fixedly connected to both sides of the fixed cover, and a group of bolts are threadedly connected to the opposite surfaces of two adjacent mounting plates.

[0010] Furthermore, the inner side of the thermal insulation board is fitted with the mounting groove, and the outer side of the thermal insulation board is fitted with the inner surface of the fixed cover.

[0011] Furthermore, the limiting grooves are adapted to the limiting blocks, and the four limiting blocks are symmetrically arranged in pairs.

[0012] Furthermore, the heating coil is a quartz superconductive coil, and one end of the heating coil passes through the heating tube.

[0013] Furthermore, the clamping strip is clamped to the clamping sleeve, and the clamping plate is clamped to one end of the mounting slot.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] (1) This solution is to fit the outer side of the insulation board with the inner surface of the fixed cover, so that the snap-in strip is snapped into the snap-in sleeve, and then the fixed cover is put on the outer side of the heating tube so that the limit groove is aligned with the limit block. At this time, the inner side of the insulation board fits with the outer surface of the installation groove, and the snap-in plate is snapped into one end of the installation groove. Finally, the bolts are passed through the installation plate to fix the fixed cover to the outer side of the heating tube. Compared with the existing technology, an insulation structure that is easy to install and disassemble is provided, which is convenient for the later maintenance and replacement of the insulation parts, can effectively avoid the dissipation of heat energy, improve the heat utilization rate, and thus reduce energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a disassembled diagram of the overall structure of the utility model;

[0019] Figure 3 It is a cross-sectional view of the barrel of the present utility model.

[0020] Explanation of the numbers in the figure: 1. Heating tube; 2. Fixed cover; 3. Snap sleeve; 4. Bolt; 5. Mounting groove; 6. Limit block; 7. Insulation board; 8. Limit groove; 9. Heating coil; 10. Snap strip; 11. Snap plate; 12. Mounting plate. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] Example:

[0023] See also Figure 1-3 A heating system for an injection molding machine barrel comprises a heating barrel 1, two fixed covers 2 are symmetrically provided on the outside of the heating barrel 1, a clamping sleeve 3 is fixedly connected to the middle of the fixed cover 2, a mounting groove 5 is provided on the outer surface of the heating barrel 1, and both ends of the mounting groove 5 are fixedly connected to limiting blocks 6 on the upper and lower sides, an insulation plate 7 is centered on the opposite surface of the heating barrel 1 and the clamping sleeve 3, and both ends of the clamping sleeve 3 are provided with limiting grooves 8 on the upper and lower sides, a heating coil 9 is fixedly connected to the inside of the heating barrel 1, a clamping strip 10 is fixedly connected to the outside of the insulation plate 7 in the center, and both ends of the insulation plate 7 are fixedly connected to clamping plates 11. First, fix the heating barrel 1 to the outside of the barrel of the injection molding machine.

[0024] See Figure 1 Both sides of the fixed cover 2 are fixedly connected with mounting plates 12, and the opposite surfaces of two adjacent mounting plates 12 are threadedly connected with a group of bolts 4, which pass through the mounting plates 12 to fix the position of the fixed cover 2.

[0025] See Figure 2 The inner side of the insulation board 7 is fitted with the mounting groove 5, and the outer side of the insulation board 7 is fitted with the inner surface of the fixed cover 2. First, fit the outer side of the insulation board 7 with the inner surface of the fixed cover 2, so that the clamping strip 10 is clamped with the clamping sleeve 3.

[0026] See Figure 2 The limiting groove 8 is adapted to the limiting block 6, and the four limiting blocks 6 are symmetrically arranged in pairs. Then the fixed cover 2 is put on the outside of the heating tube 1 so that the limiting groove 8 is aligned with the limiting block 6 to play a limiting role.

[0027] See Figure 3 The heating coil 9 is a quartz superconducting coil, and one end of the heating coil 9 passes through the heating barrel 1. The heating coil 9 generates heat to heat and melt the raw materials inside the barrel.

[0028] See Figure 2 The clamping strip 10 is clamped with the clamping sleeve 3, and the clamping plate 11 is clamped with one end of the mounting groove 5, so that the inner side of the insulation board 7 fits with the outer surface of the mounting groove 5, and the clamping plate 11 is clamped with one end of the mounting groove 5.

[0029] During use: first fix the heating cylinder 1 on the outside of the barrel of the injection molding machine, then fit the outside of the insulation plate 7 with the inner surface of the fixed cover 2, so that the clamping strip 10 is clamped with the clamping sleeve 3, and then put the fixed cover 2 on the outside of the heating cylinder 1, so that the limit groove 8 is aligned and clamped with the limit block 6 to play a limiting role. At this time, the inner side of the insulation plate 7 is fit with the outer surface of the mounting groove 5, and the clamping plate 11 is clamped with one end of the mounting groove 5. At the same time, the two pairs of mounting plates 12 are fit and aligned, and the bolts 4 are passed through the mounting plates 12 to fix the fixed cover 2 on the outside of the heating cylinder 1. Finally, the power supply is electrically connected to the input end of the heating coil 9. During the injection molding process, heat is generated by the heating coil 9 to heat and melt the raw materials inside the barrel.

[0030] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.

[0031] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0032] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A barrel heating system for an injection molding machine, comprising a heating barrel (1), two fixed covers (2) symmetrically arranged on the outer side of the heating barrel (1), a clamping sleeve (3) fixedly connected to the middle of the fixed cover (2), characterized in that: The outer surface of the heating tube (1) is provided with a mounting groove (5), and both ends of the mounting groove (5) are fixedly connected to limit blocks (6) on the upper and lower sides. A heat preservation plate (7) is centrally provided on the opposite surfaces of the heating tube (1) and the clamping sleeve (3), and both ends of the clamping sleeve (3) are provided with limit grooves (8) on the upper and lower sides. A heating coil (9) is fixedly connected to the interior of the heating tube (1), and a clamping strip (10) is fixedly connected to the outer side of the insulation plate (7), and both ends of the insulation plate (7) are fixedly connected to clamping plates (11).

2. The barrel heating system for an injection molding machine according to claim 1, wherein: Both sides of the fixed cover (2) are fixedly connected with mounting plates (12), and opposite surfaces of two adjacent mounting plates (12) are threadedly connected with a group of bolts (4).

3. The barrel heating system for an injection molding machine according to claim 1, wherein: The inner side of the heat-insulating plate (7) is fitted with the mounting groove (5), and the outer side of the heat-insulating plate (7) is fitted with the inner surface of the fixed cover (2).

4. The barrel heating system for an injection molding machine according to claim 1, wherein: The limiting grooves (8) are adapted to the limiting blocks (6), and the four limiting blocks (6) are symmetrically arranged in pairs.

5. The barrel heating system for an injection molding machine according to claim 1, characterized in that: The heating coil (9) is a quartz superconductive coil, and one end of the heating coil (9) passes through the heating tube (1).

6. The barrel heating system for an injection molding machine according to claim 1, characterized in that: The clamping strip (10) is clamped to the clamping sleeve (3), and the clamping plate (11) is clamped to one end of the mounting groove (5).

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