CN217968200U - Injection mold capable of guiding materials at uniform speed and preventing materials from being broken - Google Patents

Abstract

The utility model discloses a can at uniform velocity guide and prevent injection mold of disconnected material, including the pallet, the top fixed mounting of pallet has the cylinder, and the fixed cover in bottom of pallet has connect the lower mould, and the output bottom fixed mounting of cylinder has last mould, and the top of lower mould is formed with down the posting, and the fixed cover in outside of posting has the banding pad down, and the material of banding pad is rubber, and the bottom of going up the mould is formed with the posting. According to the scheme, the stand is pushed by the air cylinder to extrude the lower die, the peripheral seams are tightly closed through deformation of the edge sealing pad, the injection molding end is tightly pressed on the injection material channel, the exhaust pipe is tightly pressed on the vacuum exhaust channel to exhaust air in the die and then injection molding is carried out, bubbles are prevented from being generated, and the material guiding injection molding speed is increased; through the heating of heating machine with heat conduction coil for pour into the local rising of material way peripheral temperature, make the interior congealing material of pouring into the material way melt a little, prevent adhesion, block, avoid pouring into near the product of material way and break, promote the yields.

Description

Injection mold capable of guiding materials at uniform speed and preventing materials from being broken

Technical Field

The utility model relates to an injection mold technical field, more specifically says, the utility model relates to a can at the uniform velocity guide and prevent injection mold of disconnected material.

Background

The injection mold is a tool which is matched with a plastic forming machine in the plastic processing industry and endows plastic products with complete configuration and accurate size.

At present, air is remained in a die cavity when the die is used for injection molding, bubbles are easily generated to cause poor quality of finished products, plastic solution occupies air by squeezing when the injection molding is carried out from a filling port, and the injection molding blanking speed is unstable, the injection molding progress is slow, and the efficiency is low due to the change of pressure intensity; in addition, when the product is molded by injection, the upper and lower molds are normally opened in such a way that the product and the solidified material are both positioned in the lower mold part and ejected by the ejector pins, but the solidified material possibly flows through the flow channel and is adhered to the upper mold, or the solidified material is clamped in the material channel due to uneven thrust of the ejector pins, and the product injected into the material channel area is broken in the mold opening process, so that the product is scrapped, and the yield is low.

SUMMERY OF THE UTILITY MODEL

In order to overcome prior art's above-mentioned defect, the embodiment of the utility model provides a can at uniform velocity guide and prevent injection mold of disconnected material to the mould cavity interior incomplete air that leaves when solving the mould at present and moulding plastics, it is poor to produce the bubble easily and lead to finished product quality, and the plastic solution is crowded when moulding plastics from the sprue and is accounted for the air, because the change of pressure can lead to moulding plastics blanking speed unstable, and the progress of moulding plastics is slow, the problem of inefficiency.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a can at uniform velocity guide and prevent injection mold of disconnected material, includes the pallet, the top fixed mounting of pallet has the cylinder, the fixed die that has cup jointed in the bottom of pallet, the output bottom fixed mounting of cylinder has last mould.

The upper die is characterized in that a lower positioning frame is integrally formed at the top of the lower die, a sealing edge pad is fixedly sleeved outside the lower positioning frame, and the sealing edge pad is made of rubber.

The bottom of the upper die is integrally formed with an upper positioning frame, the size of the upper positioning frame is matched with that of the edge sealing pad, the position of the upper positioning frame corresponds to that of the lower positioning frame, the top of the upper die is provided with a vacuum pumping channel, the top of the vacuum pumping channel is fixedly sleeved with a first sealing pad, and the first sealing pad is made of rubber.

Wherein, it says to go up the top of mould and seted up the injection material, the rear portion fixed mounting of going up the mould has the heating machine, the fixed sealed pad of second that has cup jointed in top that the injection material was said, the sealed material of pad of second is rubber, the fixed thermal conductive coil that has cup jointed in outside that the injection material was said, the fixed inside at the heating machine that cup joints of thermal conductive coil.

The ejector pins are movably sleeved at the top of the upper die, the number of the ejector pins is four, the upper limit sheet is fixedly mounted at the top of the ejector pins, the reset spring is fixedly connected to the bottom of the upper limit sheet, the reset spring is movably sleeved outside the ejector pins, the reset spring is movably mounted at the top of the upper die, and the lower limit sheet is fixedly mounted at the bottom of the upper limit sheet.

The utility model discloses an above-mentioned technical scheme's beneficial effect as follows:

according to the scheme, air is remained in a mold cavity when the existing mold is used for injection molding, bubbles are easily generated to cause poor quality of finished products, plastic solution occupies air in an extruding mode when the injection molding is carried out from a filling port, the injection molding blanking speed is unstable due to pressure intensity change, the injection molding progress is slow, the efficiency is low, the frame is pushed by the air cylinder to extrude the lower mold, the peripheral seams are tightly sealed through edge sealing pad deformation, the injection molding end is tightly pressed on an injection material channel, the exhaust pipe is tightly pressed on a vacuum exhaust channel to extract the air in the mold for injection molding, bubbles are avoided, and the material guiding injection molding speed is improved; among the above-mentioned scheme, when the product is moulded plastics and is accomplished, go up the normal state of lower mould opening in-process should be that the product is in the lower mould part with congealing together and ejecting by the thimble, but it is possible that the runner congeals the material and can glue along with in last mould, or because thimble thrust inequality leads to long congealing the material card in the material way, often can break the regional product of injection material way in the die sinking motion process, lead to the product to scrap, the yields is low, heat conduction coil through the heater this moment, make the peripheral temperature local rising of injection material way, make the congealing material in the injection material way melt a little, prevent the adhesion, the card hinders, avoid near the product break of injection material way, promote the yields.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the lower mold structure of the present invention;

fig. 3 is a schematic structural view of an upper die of the present invention;

fig. 4 is a schematic view of the cross-sectional structure of the upper mold of the present invention;

fig. 5 is a schematic view of the structure of the thimble of the present invention.

[ reference numerals ]

1. A stand; 11. a cylinder; 2. a lower die; 21. a lower positioning frame; 22. edge sealing pads; 3. an upper die; 31. an upper positioning frame; 32. a vacuum air exhaust passage; 33. a first gasket; 34. injecting the material into the material channel; 341. a second gasket; 342. a heat conductive coil; 35. a heater; 36. a thimble; 361. an upper limiting sheet; 362. a return spring; 363. a lower limit piece.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.

Like figure 1 to figure 5 the embodiment of the utility model provides a can at uniform velocity guide and prevent injection mold of disconnected material, including pallet 1, the top fixed mounting of pallet 1 has cylinder 11, the fixed die 2 that has cup jointed in the bottom of pallet 1, the output bottom fixed mounting of cylinder 11 has last mould 3.

As shown in fig. 2 to 3, a lower positioning frame 21 is integrally formed at the top of the lower die 2, an edge sealing pad 22 is fixedly sleeved outside the lower positioning frame 21, the edge sealing pad 22 is made of rubber, an upper positioning frame 31 is integrally formed at the bottom of the upper die 3, the size of the upper positioning frame 31 is matched with the size of the edge sealing pad 22, the position of the upper positioning frame 31 corresponds to the position of the lower positioning frame 21, a vacuum pumping channel 32 is formed at the top of the upper die 3, a first sealing gasket 33 is fixedly sleeved at the top of the vacuum pumping channel 32, and the first sealing gasket 33 is made of rubber;

specifically, the air cylinder 11 pushes the stand 1 to extrude the lower die 2, the edge sealing pad 22 deforms to enable surrounding seams to be closed, then the injection molding end is tightly pressed on the injection material channel 34, finally the exhaust pipe is tightly pressed on the vacuum exhaust channel 32 to exhaust air in the die, and then injection molding is carried out, so that bubbles are prevented from being generated, and the material guiding injection molding speed is improved.

As shown in fig. 4 to 5, an injection material channel 34 is formed at the top of the upper die 3, a heater 35 is fixedly mounted at the rear of the upper die 3, a second sealing gasket 341 is fixedly sleeved at the top of the injection material channel 34, the second sealing gasket 341 is made of rubber, a heat conductive coil 342 is fixedly sleeved outside the injection material channel 34, the heat conductive coil 342 is fixedly sleeved inside the heater 35, ejector pins 36 are movably sleeved at the top of the upper die 3, the number of the ejector pins 36 is four, upper limiting plates 361 are fixedly mounted at the tops of the four ejector pins 36, return springs 362 are fixedly connected to the bottoms of the upper limiting plates 361, the return springs 362 are movably sleeved outside the ejector pins 36, the return springs 362 are movably mounted at the top of the upper die 3, and lower limiting plates 363 are fixedly mounted at the bottoms of the upper limiting plates 361;

specifically, at first will lead hot coil 342 through heating machine 35 heating for pour into the material and say 34 peripheral temperature local rising into, make the congeals material of pouring into in the material and say 34 slightly melt, then start cylinder 11 will go up mould 3 and promote, press upper limit piece 361 at last simultaneously, upper limit piece 361 promotes the product and drops from last mould 3, falls into in lower mould 2, prevents adhesion, card and hinders, avoids pouring into the product near material way 34 and breaks, promotes the yields.

The utility model discloses a working process as follows:

firstly, pushing a stand 1 to extrude a lower die 2 through an air cylinder 11, tightly sealing the peripheral seams through the deformation of a sealing pad 22, tightly pressing an injection molding end on an injection material channel 34, and finally tightly pressing an exhaust pipe on a vacuum exhaust channel 32 to exhaust air in the die and then performing injection molding; firstly, the heat conducting coil 342 is heated by the heater 35, so that the temperature around the injection material channel 34 is locally raised, the solidified material in the injection material channel 34 is slightly melted, then the cylinder 11 is started to lift the upper die 3, finally, the upper limit sheet 361 is pressed simultaneously, and the upper limit sheet 361 pushes the product to fall off from the upper die 3.

In the scheme, the stand 1 is pushed by the air cylinder 11 to extrude the lower die 2, the peripheral seams are tightly closed by the deformation of the edge sealing pad 22, the injection molding end is tightly pressed on the injection material channel 34, the exhaust pipe is tightly pressed on the vacuum exhaust channel 32 to exhaust air in the die and then perform injection molding, so that bubbles are prevented from being generated, and the material guiding injection molding speed is increased; in the above scheme, the heat conducting coil 342 is heated by the heater 35, so that the temperature of the periphery of the injection material channel 34 is locally increased, the solidified material in the injection material channel 34 is slightly melted, adhesion and blocking are prevented, the product near the injection material channel 34 is prevented from being broken, and the yield is improved.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. The utility model provides a can at uniform velocity guide and prevent injection mold of disconnected material, includes pallet (1), its characterized in that, the top fixed mounting of pallet (1) has cylinder (11), the bottom of pallet (1) is fixed to be cup jointed lower mould (2), the output bottom fixed mounting of cylinder (11) has last mould (3).

2. The injection mold capable of guiding material at a constant speed and preventing material breakage according to claim 1, wherein a lower positioning frame (21) is integrally formed at the top of the lower mold (2), an edge sealing pad (22) is fixedly sleeved outside the lower positioning frame (21), and the edge sealing pad (22) is made of rubber.

3. The injection mold capable of uniformly guiding materials and preventing material breakage as claimed in claim 1, wherein an upper positioning frame (31) is integrally formed at the bottom of the upper mold (3), the size of the upper positioning frame (31) is matched with the size of the edge sealing pad (22), the position of the upper positioning frame (31) corresponds to the position of the lower positioning frame (21), a vacuum air suction channel (32) is formed at the top of the upper mold (3), a first sealing pad (33) is fixedly sleeved at the top of the vacuum air suction channel (32), and the first sealing pad (33) is made of rubber.

4. The injection mold capable of uniformly guiding materials and preventing material breakage as claimed in claim 1, wherein an injection material channel (34) is formed in the top of the upper mold (3), a heater (35) is fixedly mounted at the rear portion of the upper mold (3), a second sealing gasket (341) is fixedly sleeved on the top of the injection material channel (34), the second sealing gasket (341) is made of rubber, a heat conducting coil (342) is fixedly sleeved on the outside of the injection material channel (34), and the heat conducting coil (342) is fixedly sleeved inside the heater (35).

5. The injection mold capable of guiding material at a constant speed and preventing material breakage as claimed in claim 1, wherein ejector pins (36) are movably sleeved on the top of the upper mold (3), the number of the ejector pins (36) is four, upper limit pieces (361) are fixedly mounted on the tops of the four ejector pins (36), a return spring (362) is fixedly connected to the bottoms of the upper limit pieces (361), the return spring (362) is movably sleeved outside the ejector pins (36), the return spring (362) is movably mounted on the top of the upper mold (3), and a lower limit piece (363) is fixedly mounted on the bottoms of the upper limit pieces (361).

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