Anti-sticking injection mold

Abstract

The utility model discloses an anti-sticking injection mold which comprises a main body mechanism, the main body mechanism comprises a base, a top seat arranged above the base, a plurality of hydraulic rods mounted on the base, a mold main body fixed on the hydraulic rods, a plurality of fixing frames fixed on the base and the top seat, ejection pieces mounted on the fixing frames and extending into an inner cavity of the mold main body, and a U-shaped pipe connected with the end parts of the ejection pieces; the air inlet piece is installed on one side of the U-shaped pipe, the triggering piece is fixed to the middle of the base and the middle of the top base, the base and the top base are both used for installing other assemblies, a plurality of round rods are fixed to the top end of the base in an array mode, the round rods are movably sleeved with the top base, and movement of the top base can be limited. The mold sticking problem is avoided, and the product is convenient to demold.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, concretely is a kind of anti-sticking mold injection mold. BACKGROUND

[0002] With the development of science and technology, the production of plastic products is more and more convenient, which can be made by injection molding method, and injection molding is a processing method used in batch production of some complex-shaped parts. Its process will use injection mold, and injection mold is a tool for producing plastic products, and also a tool for giving plastic products complete structure and accurate size. Specifically, the molten plastic is injected into the mold cavity by the injection molding machine under high pressure, and the shaped product is obtained after cooling and solidification.

[0003] The existing injection mold mainly has the following disadvantages in use: after the product is cooled and solidified in the mold, the product is easily adhered to the inner wall of the mold, causing sticking phenomenon, which makes it difficult to take out the product from the mold, therefore, there is room for improvement. UTILITY MODEL CONTENT

[0004] The utility model aims at solving one of the technical problems existing in the prior art or related art.

[0005] Therefore, the utility model adopts the technical scheme: an anti-sticking mold injection mold, comprising: a main body mechanism, characterized in that the main body mechanism comprises a base, a top seat arranged above the base, a plurality of hydraulic rods mounted on the base and the base, a mold body fixed on the hydraulic rods, a plurality of fixing frames fixed on the base and the top seat, an ejection piece mounted on the fixing frame and extending into the inner cavity of the mold body, a U-shaped pipe connected to the end of the ejection piece, an air inlet piece mounted on one side of the U-shaped pipe, and a trigger piece fixed in the middle of the base and the top seat.

[0006] The ejection piece comprises a pipe body mounted on the fixing frame and extending into the inner cavity of the mold body, and a conical block integrally fixed on the pipe body, the inside of the pipe body is provided with a flow channel communicating with the U-shaped pipe, and the outer side of the conical block is provided with a plurality of spray holes in annular array and communicated with the flow channel.

[0007] In a preferred example, the utility model can be further configured as: the trigger piece comprises a housing fixed on the base and the top seat, a movable rod movably arranged in the inner cavity of the housing and extending out of the housing at the end, a spring connecting the end of the movable rod and the inner bottom wall of the housing, and a touch sensor mounted on the inner bottom wall of the housing.

[0008] In a preferred example, the utility model can be further configured as: a plurality of conical holes are arrayed on the inner bottom wall of the mold body, and the conical seat is embedded in the conical hole.

[0009] The utility model discloses in a preferable example can be further configured as: the air inlet piece includes the air inlet pipe of installing on the U type pipe and with U type pipe intercommunication and the electric valve of installing on the air inlet pipe.

[0010] The utility model discloses in a preferable example can be further configured as: the output of touch sensor and the input of electric valve are connected through the wire.

[0011] The utility model discloses in a preferable example can be further configured as: when the hydraulic rod is at the maximum extension length, the top end surface of conical block is flush with the inner bottom wall of mould body.

[0012] Through adopting above-mentioned technical scheme, the utility model has obtained the beneficial effect that:

[0013] 1. In the utility model, install multiple hydraulic rods on the base and the top seat, fix the mould body on the hydraulic rod, control the mould body to move up and down through the hydraulic rod, and install multiple ejection pieces into the inner cavity of the mould body through the fixing frame on the base and the top seat, and set the U type pipe to communicate with the multiple ejection pieces, install the air inlet pipe on one side of the U type pipe, and the ejection piece is composed of the pipe body connected with the U type pipe and the conical seat fixed on the top end of the pipe body, multiple spray holes are arranged on the inclined surface of the conical seat in annular array and communicate with the inner cavity of the pipe body, when demoulding, the hydraulic rod contracts and drives the mould body to move, at this time, the ejection piece ejects a gap between the inner wall of the mould body and the product, and the compressed gas is sent into the U type pipe through the air inlet piece, then is sent into the extrusion piece through the U type pipe, and is sprayed into the gap through the spray hole, with the compressed gas continuously entering the gap, the gas film is formed between the product and the inner wall of the mould, and the product can be ejected, effectively avoiding the sticking problem between the product and the inner wall of the mould body due to sticking, negative pressure and the like, and ensuring the smoothness of product demoulding.

[0014] 2. In the utility model, install the trigger on the middle part of the base and the top seat, the trigger is used for controlling the opening and closing of the air inlet piece, when the mould body moves and contacts the trigger, the air inlet piece opens, and the compressed air is sent in, when the mould body moves and separates from the trigger, the air inlet piece closes, so that the product realizes automatic demoulding and ejection, and the practicality is further improved. ACCURACY OF DRAWINGS

[0015] Figure 1 It is the structural schematic diagram of the utility model;

[0016] Figure 2 It is the sectional view schematic diagram of the utility model;

[0017] Figure 3 It is the exploded structural schematic diagram of the utility model;

[0018] Figure 4Part structure schematic diagram of the utility model.

[0019] Reference signs:

[0020] 100, main body mechanism, 110, base, 120, top seat, 130, hydraulic rod, 140, mold main body, 141, conical hole, 150, fixing frame, 160, ejector, 161, pipe body, 1611, flow channel, 162, conical block, 1621, injection hole, 170, U-shaped pipe, 180, air inlet piece, 181, air inlet pipe, 182, electric valve, 190, trigger piece, 191, shell, 192, movable rod, 193, spring, 194, touch sensor. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the utility model more clear and apparent, the utility model is further explained in detail below in combination with specific implementation manners and with reference to the drawings. It should be explained that, in the case of no conflict, the embodiments of the utility model and the features in the embodiments can be combined with each other.

[0022] Some embodiments of the utility model are described below in combination with the drawings, Embodiment 1

[0023] In combination with Figures 1-4 The embodiment provides a kind of anti-sticking mold injection mold, including: main body mechanism 100, it is characterized in that.

[0024] Main body mechanism 100 includes base 110, top seat 120 being arranged above base 110, multiple hydraulic rods 130 being installed on base 110 and on base 110, mold main body 140 being fixed on hydraulic rod 130, multiple fixing frames 150 being fixed on base 110 and top seat 120, ejector 160 being installed on fixing frame 150 and extending into the cavity of mold main body 140, U-shaped pipe 170 being connected to the end of multiple ejectors 160, air inlet piece 180 being installed on one side of U-shaped pipe 170 and trigger piece 190 being fixed in the middle of base 110 and top seat 120.

[0025] Base 110 and top seat 120 are used for installing other components, and multiple round rods are fixed in array on the top end of base 110, and top seat 120 is movably sleeved on the round rod, and the movement of top seat 120 can be limited.

[0026] Hydraulic rod 130 is used for installing mold main body 140, and drives mold main body 140 to move, and mold main body 140 is used for the injection molding of product.

[0027] The fixed frame 150 is used for mounting the ejector 160, ensuring the stability of the ejector 160, the ejector 160 is used for ejecting the product in the inner cavity of the mold body 140, including the pipe body 161 mounted on the fixed frame 150 and extending into the inner cavity of the mold body 140 and the conical block 162 integrally fixed on the pipe body 161, a plurality of conical holes 141 are arrayed on the inner bottom wall of the mold body 140, the conical seat is embedded in the conical hole 141, and when the hydraulic rod 130 is at the maximum extension length, the top end surface of the conical block 162 is flush with the inner bottom wall of the mold body 140, avoiding the influence of the ejector 160 on the product surface during injection molding, a flow channel 1611 is arranged in the inside of the pipe body 161 and communicates with the U-shaped pipe 170, and a plurality of injection holes 1621 are arranged in an annular array on the outer side surface of the conical block 162 and communicate with the flow channel 1611, when the mold body 140 is lowered by the hydraulic rod 130, the ejector 160 is upwardly ejected with the lowering of the mold body 140, a gap is formed between the product and the inner wall of the mold, at this time, the compressed air in the U-shaped pipe 170 enters the flow channel 1611, and then is sent into the gap through the injection hole 1621, forming a gas film between the product and the inner wall of the mold, so that the product is ejected, and the demolding of the product is completed.

[0028] The U-shaped pipe 170 is used for sending compressed gas into the pipe body 161, the air inlet member 180 includes the air inlet pipe 181 mounted on the U-shaped pipe 170 and communicating with the U-shaped pipe 170 and the electric valve 182 mounted on the air inlet pipe 181, one end of the air inlet pipe 181 communicates with the air pump through a hose, and the other end communicates with the U-shaped pipe 170, for sending compressed gas into the U-shaped pipe 170, and the electric valve 182 is used for controlling the opening and closing of the air inlet pipe 181.

[0029] The trigger member 190 is used for controlling the air inlet member 180, including the shell 191 fixed on the base 110 and the top seat 120, the movable rod 192 movably arranged in the inner cavity of the shell 191 and extending out of the shell 191, the spring 193 connecting the end of the movable rod 192 and the inner bottom wall of the shell 191, and the touch sensor 194 mounted on the inner bottom wall of the shell 191, the top end of the movable rod 192 is tightly attached to the mold body 140 under the action of the spring 193, when the mold body 140 is lowered, the movable rod 192 can be moved, and similarly, when the mold body 140 is raised, the spring 193 can keep the movable rod 192 tightly attached to the mold body 140, the output end of the touch sensor 194 is electrically connected with the input end of the electric valve 182 through wires, when the mold body 140 drives the movable rod 192 to contact the touch sensor 194, the touch sensor 194 receives the touch signal and opens the electric valve 182, at this time, the compressed gas is sent into the U-shaped pipe 170 through the air inlet pipe 181.

[0030] The working principle and use flow of the utility model are as follows: when the product is cured and formed in the inner cavity of the mold main body 140, the hydraulic rod 130 is started, the mold main body 140 is slightly moved downwards, the ejector 160 is upwardly ejected along with the downward movement of the mold main body 140, a gap is formed between the product and the inner wall of the mold, meanwhile, the mold main body 140 is moved downwards to drive the movable rod 192 to move downwards, when the bottom end of the movable rod 192 contacts the touch sensor 194, the touch sensor 194 receives the touch signal, the electric valve 182 is opened, at this time, the compressed gas is sent into the U-shaped pipe 170 through the air inlet pipe 181, then enters the flow channel 1611 in the pipe body 161 through the U-shaped pipe 170, and is sprayed into the gap through the spray hole 1621 along the flow channel 1611, along with the continuous entry of the compressed gas into the gap, the gas film is formed between the product and the inner wall of the mold, the product can be ejected, after completion, the hydraulic rod 130 drives the mold main body 140 to reset, along with the resetting of the mold main body 140, the spring 193 drives the movable rod 192 to move upwards and tightly contact the mold main body 140, at this time, the touch sensor 194 detects that the touch signal disappears, the electric valve 182 is closed.

[0031] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, the scope of the utility model is defined by the claims and its equivalents.

Claims

1. An anti-stick injection mold, comprising: The main body (100) is characterized in that it includes a base (110), a top seat (120) disposed above the base (110), a plurality of hydraulic rods (130) mounted on the base (110) and the base (110), a mold body (140) fixed on the hydraulic rods (130), a plurality of fixing frames (150) fixed on the base (110) and the top seat (120), an ejector (160) mounted on the fixing frame (150) and extending into the cavity of the mold body (140), a U-shaped tube (170) connecting the ends of the plurality of ejector (160), an air inlet (180) mounted on one side of the U-shaped tube (170), and a trigger (190) fixed in the middle of the base (110) and the top seat (120). The ejector (160) includes a tube (161) mounted on a fixed frame (150) and extending into the cavity of the mold body (140) and a conical block (162) integrally fixed on the tube (161). The tube (161) has a flow channel (1611) inside that connects to the U-shaped tube (170). The outer side of the conical block (162) has spray holes (1621) arranged in a ring array that connect to the flow channel (1611).

2. The anti-stick injection mold according to claim 1, characterized in that, The trigger (190) includes a housing (191) fixed on the base (110) and the top seat (120), a movable rod (192) movably disposed in the inner cavity of the housing (191) and with its end extending out of the housing (191), a spring (193) connecting the end of the movable rod (192) to the inner bottom wall of the housing (191), and a touch sensor (194) installed on the inner bottom wall of the housing (191).

3. The anti-stick injection mold according to claim 1, characterized in that, The inner bottom wall of the mold body (140) has multiple conical holes (141) arranged in an array, and a conical seat is embedded in the conical hole (141).

4. The anti-stick injection mold according to claim 1, characterized in that, The air intake component (180) includes an air intake pipe (181) mounted on and connected to the U-shaped pipe (170) and an electric valve (182) mounted on the air intake pipe (181).

5. The anti-stick injection mold according to claim 2, characterized in that, The output of the touch sensor (194) is electrically connected to the input of the electric valve (182) via a wire.

6. The anti-stick injection mold according to claim 1, characterized in that, When the hydraulic rod (130) is at its maximum extension length, the top surface of the cone block (162) is flush with the inner bottom wall of the mold body (140).

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