CN211165178U

CN211165178U - Injection molding device with ejection heat insulation structure

Info

Publication number: CN211165178U
Application number: CN201921259941.1U
Authority: CN
Inventors: 林溪彬
Original assignee: Yuanxiu Technology Chongqing Co ltd
Current assignee: Yuanxiu Technology Chongqing Co ltd
Priority date: 2019-08-06
Filing date: 2019-08-06
Publication date: 2020-08-04
Anticipated expiration: 2029-08-06

Abstract

The utility model discloses an injection molding device with an injection heat-insulation structure, which comprises an injection pipe; the outer wall of the material injection pipe is covered with a heat insulation sleeve, the heat insulation sleeve comprises a block-shaped body, a plurality of first connecting pieces are fixed on the edge of one side of the block-shaped body, second connecting pieces matched with the first connecting pieces are arranged on the outer surface of the block-shaped body, and when the heat insulation sleeve is covered on the material injection pipe, the first connecting pieces are connected with the second connecting pieces in a detachable connection mode. The remarkable effects are as follows: the heat of the material injection pipe is gathered in the heat-insulating sleeve and cannot contact with air to generate heat exchange, so that the temperature of the material injection pipe is more convenient to control, the temperature is kept stable to avoid influencing the product quality, the average temperature of a workshop is reduced by about 3-10 ℃ in summer, the temperature of a heating device and the material injection pipe cannot be reduced too fast in winter, and the energy is saved.

Description

Injection molding device with ejection heat insulation structure

Technical Field

The utility model relates to keyboard key cap injection moulding technical field, concretely relates to device of moulding plastics with ejection insulation construction.

Background

The keyboard is the most common and primary input device, a command and data input device for operating the device, and also a set of function keys (e.g., typewriter, computer keyboard) arranged to operate a machine or device via the system. English letters, numbers, punctuation marks and the like can be input into the computer through the keyboard, so that commands, data input and the like are sent to the computer.

In the production of keyboard key caps, injection molding is the most widely used molding method in the processing of key caps at present. As shown in fig. 1, the conventional injection molding apparatus includes a base 1, an injection seat 2 mounted on the base 1, and an injection pipe 3 connected to the injection seat 2; the material injection pipe 3 is communicated with a material feeding hopper 4 fixed on the material injection seat 2, and a heating device and the like are arranged in the material injection pipe 3. However, since the material injecting pipe 3 is mostly made of metal, it can exchange heat with air during injection molding production, so that the temperature of the material injecting pipe 3 is difficult to control, and especially, the heat dissipation speed is increased in winter, which not only wastes energy, but also affects the quality of the product. In addition, in summer, the temperature of the workshop is too high due to heat dissipation, and more refrigeration is required to be invested to maintain the temperature of the workshop within a reasonable range, so that the burden of production enterprises is increased undoubtedly.

Disclosure of Invention

The utility model aims at providing a device of moulding plastics with jet-out insulation construction, the device can keep jetting material pipe temperature stability and convenient control to can guarantee product quality and can improve operational environment again, can also the energy saving.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a device of moulding plastics with jet-out insulation construction, includes and penetrates the material pipe, its key lies in: the outer wall of the injection pipe is covered with a heat insulation sleeve, the heat insulation sleeve comprises a block-shaped body, a plurality of first connecting pieces are fixed on the edge of one side of the block-shaped body, second connecting pieces matched with the first connecting pieces are arranged on the outer surface of the block-shaped body, when the heat insulation sleeve covers the injection pipe, the first connecting pieces are connected with the second connecting pieces in a detachable connection mode, and the connection positions of the first connecting pieces and the second connecting pieces are adjustable.

Furthermore, cubic body includes interior cladding layer and outer protective layer are formed with the heat preservation chamber, it has heat preservation thermal insulation material to fill in the heat preservation intracavity.

Furthermore, at least one yielding groove is further formed in the block-shaped body, and the setting direction of the yielding groove is parallel to the central line of the first connecting piece.

Further, the first connecting piece is located outside the projection range of the block-shaped body in the vertical direction, and the second connecting piece is located within the projection range of the block-shaped body in the vertical direction.

Furthermore, the injection pipe comprises an injection molding screw rod, a charging barrel and an injection pipe, wherein the charging barrel and the injection pipe are sleeved outside the injection molding screw rod, the inlet end of the charging barrel is communicated with the feeding hopper, the outlet end of the charging barrel is provided with the injection pipe with an injection nozzle, the heating device is embedded in the charging barrel, and the heat insulation sleeve is laid on the charging barrel.

Further, the outlet of the charging barrel is gradually converged and is in butt joint with the inlet of the injection pipe.

Furthermore, the first connecting piece and the second connecting piece are connected in an adhesion mode, a magnetic suction mode or a hasp mode.

The utility model discloses a show the effect and be:

1. the structure is simple, the operation is convenient, the heat insulation sleeve structure can be formed on the periphery of the injection pipe of the existing injection molding device through the connection of the first connecting piece and the second connecting piece, the improvement of the existing injection molding device is realized very simply and conveniently, the realization cost is low, and the production enterprise is not greatly burdened with cost;

2. the heat of the material injection pipe is gathered in the heat-insulating sleeve through the heat-insulating sleeve structure, and the heat cannot be contacted with air to generate heat exchange, so that the temperature of the material cylinder is more convenient to control, and the temperature is kept stable to avoid influencing the product quality;

3. meanwhile, the average temperature of the workshop is reduced by about 3-10 ℃ in summer, the comfort of the workshop environment is ensured, and the investment of enterprises in maintaining the workshop environment is reduced; the temperature of the heating device and the charging barrel cannot be reduced too fast in winter, so that energy is saved;

4. the groove of stepping down that sets up on the insulation cover can be convenient to circuits such as sensor on the correlation material pipe step down, has improved the result of use greatly.

Drawings

FIG. 1 is a schematic view of a prior art injection molding apparatus;

fig. 2 is a schematic structural diagram of the present invention;

FIG. 3 is a schematic structural view of the insulating sleeve;

FIG. 4 is a rear view of FIG. 3;

fig. 5 is a schematic sectional structure of the thermal insulation sleeve.

Detailed Description

The following provides a more detailed description of the embodiments and the operation of the present invention with reference to the accompanying drawings.

As shown in fig. 2 to 5, an injection molding apparatus with an injection heat-preserving structure comprises a base 1, an injection seat 2 installed on the base 1, and an injection pipe 3 connected with the injection seat 2; the injection pipe 3 is communicated with a feeding hopper 4 fixed on the injection seat 2, and a heating device 5 is arranged in the injection pipe 3; the outer wall of the injection pipe 3 is covered with a heat insulation sleeve 6, the heat insulation sleeve 6 comprises a block-shaped body 61 made of heat insulation materials, a plurality of first connecting pieces 62 are fixed on the edge of one side of the block-shaped body 61, a second connecting piece 63 matched with the first connecting pieces 62 is arranged on the outer surface of the block-shaped body 61, when the heat insulation sleeve 6 is coated on the injection pipe 3, the first connecting pieces 62 are connected with the second connecting pieces 63 in a detachable connection mode, and the connection positions of the first connecting pieces 62 and the second connecting pieces 63 are adjustable.

Referring to fig. 5, the block body 61 comprises an inner coating layer 61a and an outer protective layer 61b, a heat preservation cavity is formed between the inner coating layer 61a and the outer protective layer 61b, heat preservation and insulation materials 61c are filled in the heat preservation cavity, and the inner coating layer 61a is better attached to the cylinder 3 to avoid heat emission from a gap between the inner coating layer and the outer protective layer; the inner heat insulation material layer is better protected through the outer protection layer 61b, and the service life of the heat insulation mechanism is prolonged.

As shown in fig. 3 and 4, two yielding grooves 64 are further formed in the block-shaped body 61, the setting direction of the yielding groove 64 is parallel to the central line of the first connecting piece 62, and the sensor connecting line on the injection tube 3 can be conveniently accommodated through the yielding groove 64.

Preferably, the first connecting piece 62 is located outside the projection range of the block-shaped body 61 in the vertical direction, and the second connecting piece 63 is located within the projection range of the block-shaped body 61 in the vertical direction, so that the block-shaped body is better covered on the shooting pipe 3 through the first connecting piece 62 and the second connecting piece 63.

Preferably, the first connecting member 62 and the second connecting member 63 are connected by adhesion, wherein the first connecting member 62 is configured as a barbed surface, and the second connecting member 63 is configured as a round roughened surface. Of course, the first connecting member 62 and the second connecting member 63 can also adopt other common connecting manners such as magnetic attraction, hasp, and eye-splice according to practical and positive properties.

Referring to fig. 2, the injection tube 3 includes an injection screw 31, and a cylinder 32 and an injection tube 33 which are sleeved outside the injection screw 31, an inlet end of the cylinder 32 is communicated with the feeding hopper 4, an outlet end of the cylinder 32 is provided with the injection tube 33 with an injection nozzle 34, the heating device 5 is embedded in the cylinder 32, the heat-insulating sleeve 6 is laid on the cylinder 32, and an outlet of the cylinder 32 gradually converges and is in butt joint with an inlet of the injection tube 33.

As can also be seen from fig. 2, the density of the heating coil of the heating device 5 from the starting end to the final end is gradually increased and then gradually decreased, so as to better adapt to the injection molding process.

In this example, the block body 61 is substantially rectangular and is made of a heat insulating material such as a rubber foam or a glass wool.

Claims

1. An injection molding device with an injection heat-insulation structure comprises an injection pipe; the method is characterized in that: the outer wall of the injection pipe is covered with a heat insulation sleeve, the heat insulation sleeve comprises a block-shaped body, a plurality of first connecting pieces are fixed on the edge of one side of the block-shaped body, second connecting pieces matched with the first connecting pieces are arranged on the outer surface of the block-shaped body, when the heat insulation sleeve covers the injection pipe, the first connecting pieces are connected with the second connecting pieces in a detachable connection mode, and the connection positions of the first connecting pieces and the second connecting pieces are adjustable.

2. An injection molding apparatus with an injection molding compound as claimed in claim 1, wherein: the block-shaped body comprises an inner attaching layer and an outer protective layer, a heat preservation cavity is formed between the inner attaching layer and the outer protective layer, and heat preservation and insulation materials are filled in the heat preservation cavity.

3. An injection molding apparatus with an injection molding compound as claimed in claim 1, wherein: at least one abdicating groove is further formed in the block-shaped body, and the setting direction of the abdicating groove is parallel to the central line of the first connecting piece.

4. An injection molding apparatus with an injection molding compound as claimed in claim 1, wherein: the first connecting piece is located outside the vertical projection range of the block-shaped body, and the second connecting piece is located within the vertical projection range of the block-shaped body.

5. An injection molding apparatus with an injection molding compound as claimed in claim 1, wherein: the injection pipe comprises an injection screw, a charging barrel and an injection pipe, wherein the charging barrel and the injection pipe are sleeved outside the injection screw, the inlet end of the charging barrel is communicated with a feeding hopper, the outlet end of the charging barrel is provided with the injection pipe with an injection nozzle, a heating device is embedded in the charging barrel, and the heat-insulating sleeve is laid on the charging barrel.

6. An injection molding apparatus with an injection molding compound as claimed in claim 5, wherein: the outlet of the charging barrel gradually converges and is in butt joint with the inlet of the injection pipe.

7. An injection molding apparatus with an injection heat-insulating structure according to any one of claims 1 to 6, wherein: the first connecting piece and the second connecting piece are connected in a bonding mode.