CN212171199U

CN212171199U - Automatic demoulding device of injection mould

Info

Publication number: CN212171199U
Application number: CN201922364435.5U
Authority: CN
Inventors: 李淼
Original assignee: Suzhou Yaqi New Plastic Co ltd
Current assignee: Suzhou Yaqi New Plastic Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-12-18
Anticipated expiration: 2029-12-25

Abstract

The utility model discloses an injection mold's automatic demoulding device, concretely relates to production field of moulding plastics, including mount, bed die, last mould, collection device, bottom plate, stand cylinder are installed at the top of mount, and rotational positioning axle, upset cylinder are installed respectively to both ends about the bed die bottom surface, and the bottom surface joint of bed die has the drawing of patterns faller, and drawing of patterns cylinder is installed to the bottom surface of drawing of patterns faller, and the cooling jacket is installed to one side of mount, the tip fixedly connected with outlet pipe of cooling jacket, circulating pump, the other end fixedly connected with water tank of outlet pipe. The utility model discloses a set up drawing of patterns faller and ejection mechanism, utilize and make progress ejecting mode with the corresponding knockout pin of mould non-characteristic point through drawing of patterns cylinder with product and mould phase separation, improve the success rate of drawing of patterns greatly, solve traditional gas and blow off the problem that the drawing of patterns success rate is low, and also can carry out the adaptation to some comparatively accurate products, improve the device's practicality greatly.

Description

Automatic demoulding device of injection mould

Technical Field

The utility model relates to an injection moulding production technical field, more specifically say, the utility model specifically is an injection mold's automatic demoulding device.

Background

Injection molding, also known as injection molding, is a method of molding by injection and molding. The injection molding method has the advantages of high production speed, high efficiency, automation of operation, various colors, various shapes from simple to complex, small sizes, accurate product size, easy replacement of products, capability of forming products with complex shapes, and suitability for the molding processing fields of mass production, products with complex shapes and the like.

The plastics are injected into the mould into usually to adopt the injection molding machine during modern small-size injection mold production, carry out drawing of patterns operation through the manual work, however the temperature is relatively higher often at the plastic mold of just injection moulding, the workman need wait for the product cooling back to carry out drawing of patterns operation for a period of time, and the manual drawing of patterns of workman, the production efficiency is low, seriously influence big batch serialization production, the required cost of production has been promoted, and because small-size injection mold, it is higher to workman's hand and eye working strength, the easy fatigue of working makes mistakes during production, and because injection moulding product is less relatively, make the difficult way of manual drawing of patterns increase. In addition, the defective rate of manual demoulding is relatively high, workers are easy to scald, and the labor intensity is high.

In order to solve the above problems, patent application publication No. CN205467132U discloses an automatic demolding device for injection mold, referring to fig. 5 of the specification, in which a controller controls a plurality of cylinders and servo motors to complete the process from injection molding to demolding, the degree of automation is high, manual demolding is not required, the production efficiency is high, the production cost is reduced, and mass and continuous production is realized.

However, the technical scheme still has more defects in actual application;

firstly, the automatic demoulding device utilizes high-pressure gas ejected to blow out an injection mould which is positioned on a lower mould and is subjected to injection moulding, in the actual production practice, a nozzle of the high-pressure gas can only blow out from one side, and only products with lower precision can be used for blowing out products with more edges or cavities in the interior, so certain defects exist;

secondly, because the raw materials of moulding plastics that some injection moulding products adopted are comparatively sticky, need for a long time to cool off just can carry out the drawing of patterns after solidifying, the device cools off through high-pressure gas's injection, if injection moulding products do not thoroughly cool off gaseous injection to the easy pot hole that produces the product surface in injection moulding product surface, influence product quality and pleasing to the eye degree, and wait for the product cooling to consume the plenty of time and lead to production efficiency low.

Therefore, it is desirable to provide an automatic demolding device for an injection mold with wide practicability and high demolding speed.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the embodiment of the utility model provides an automatic demoulding device of an injection mould, which separates a product from the mould by arranging a demoulding needle plate and an ejection mechanism and utilizing an ejection needle corresponding to a non-characteristic point of the mould to eject the product upwards through a demoulding cylinder, thereby greatly improving the success rate of demoulding, solving the problem of low success rate of traditional gas blowing demoulding, and being capable of adapting to some more precise products, thereby greatly improving the practicability of the device; additionally, the utility model discloses a cup joint the cooling jacket in the outside of bed die, utilize liquid cooling circulation system to take away a large amount of heats of mould through the cooling jacket for injection moulding product can cool off rapidly and make the drawing of patterns more smooth, reduces the refrigerated latency of moulding plastics, accelerates production efficiency, and need not personnel on duty, and reduction in production cost realizes big batch and continuous production, with the problem of proposing in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an automatic demoulding device of an injection mould comprises a fixed frame, a lower mould, an upper mould and a collecting device, the top of the fixed frame is fixedly provided with a bottom plate, the bottom surface of the bottom plate is fixedly provided with an upright post cylinder, the end of the upright post cylinder is fixedly connected with the top surface of the upper die, the left end and the right end of the bottom surface of the lower die are respectively and fixedly provided with a rotary positioning shaft and a turnover cylinder, the bottom surface of the lower die is provided with a plurality of micro through holes and a matched demoulding needle plate, the bottom surface of the demoulding needle plate is fixedly provided with a demoulding cylinder, a cooling jacket is fixedly arranged on one side of the fixing frame, the output end and the input end of the cooling jacket are respectively and fixedly connected with a water outlet pipe and a circulating pump, the other end fixedly connected with water tank of outlet pipe, the input fixedly connected with pipe that absorbs water of circulating pump, the other end of pipe that absorbs water extends to the inner chamber bottom of water tank.

In a preferred embodiment, the upper die is located right above the lower die, the bottom ends of the rotary positioning shaft, the collecting device, the demolding cylinder and the overturning cylinder are fixedly installed on the ground, and the collecting device is located on the left side of the lower die.

In a preferred embodiment, the input ends of the upright post cylinder, the demolding cylinder and the overturning cylinder are fixedly connected with an electromagnetic control valve, the input end of the electromagnetic control valve is fixedly connected with an air pump, and the input end of the electromagnetic control valve is electrically connected with a controller.

In a preferred embodiment, a plurality of ejector pins are fixedly mounted on the top surface of the demolding pin plate, the through holes of the lower mold correspond to the ejector pins one by one, the diameters of the ejector pins are matched with those of the through holes of the lower mold, and the top surfaces of the ejector pins and the bottom surface of the inner cavity of the lower mold are located on the same horizontal plane.

In a preferred embodiment, the inside fixed mounting of cooling jacket has cooling coil, cooling coil's both ends respectively with the tip fixed connection of outlet pipe, circulating pump, the inboard fixed mounting of cooling jacket has the heat-conducting plate, the inboard of heat-conducting plate and the outside friction connection of bed die, cooling coil evenly distributed is in the inner chamber of cooling jacket, heat-conducting plate, and the inboard of the heat-conducting plate and the side of cooling coil weld mutually neglected.

In a preferred embodiment, the cooling jacket, the heat conducting plate and the cooling coil are in a C-shaped structure, and the cooling jacket is movably sleeved on the right side of the lower die.

In a preferred embodiment, a hinge member is fixedly connected to the top end of the turnover cylinder, a slide rail is fixedly mounted on the bottom surface of the lower die, and the top end of the hinge member is slidably connected to the slide rail of the lower die.

The utility model discloses a technological effect and advantage:

1. the utility model has the advantages that by arranging the demoulding needle plate and the ejection mechanism, the product is separated from the mould by utilizing the ejection needle corresponding to the non-characteristic point of the mould in the mode of ejecting upwards through the demoulding cylinder, thereby greatly improving the success rate of demoulding, solving the problem of low success rate of traditional gas blowing demoulding, and being capable of adapting to some more precise products, and greatly improving the practicability of the device;

2. the utility model discloses a cup joint the cooling jacket in the outside of bed die, utilize liquid cooling circulation system to take away a large amount of heats of mould through the cooling jacket for injection moulding product can cool off rapidly and make the drawing of patterns more smooth, reduces the refrigerated latency of moulding plastics, accelerates production efficiency, and need not personnel on duty, and reduction in production cost realizes big batch and continuous production.

Drawings

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

Fig. 2 is the schematic structural diagram of the ejection mechanism of the present invention.

Fig. 3 is a schematic structural diagram of the cooling device of the present invention.

Fig. 4 is a schematic view of the working principle structure of the present invention.

Fig. 5 is a schematic diagram of a comparison file structure of the present invention.

The reference signs are: 1. a fixed mount; 2. a lower die; 3. an upper die; 4. a column cylinder; 5. a base plate; 6. a cooling jacket; 61. a heat conducting plate; 62. a cooling coil; 7. rotating the positioning shaft; 8. a collection device; 9. a demoulding cylinder; 10. a demoulding needle plate; 101. ejecting the needle; 11. turning over the air cylinder; 12. a water outlet pipe; 13. a circulation pump; 14. a water intake duct; 15. a water tank.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The automatic demoulding device of the injection mould shown in the attached figures 1-3 comprises a fixed frame 1, a lower mould 2, an upper mould 3 and a collecting device 8, wherein a bottom plate 5 is fixedly arranged at the top of the fixed frame 1, a stand column cylinder 4 is fixedly arranged on the bottom surface of the bottom plate 5, the end of the stand column cylinder 4 is fixedly connected with the top surface of the upper mould 3, a rotary positioning shaft 7 and a turnover cylinder 11 are respectively and fixedly arranged at the left end and the right end of the bottom surface of the lower mould 2, a plurality of micro through holes are arranged on the bottom surface of the lower mould 2, a matched demoulding needle plate 10 is arranged on the bottom surface of the demoulding needle plate 10, a demoulding cylinder 9 is fixedly arranged on the bottom surface of the demoulding needle plate 10, a cooling jacket 6 is fixedly arranged on one side of the fixed frame 1, the output end and the input end of the cooling jacket 6 are respectively, the other end of the suction conduit 14 extends to the bottom of the inner cavity of the water tank 15.

The implementation mode is specifically as follows: by arranging the demoulding needle plate 10 and the ejection mechanism, the product is separated from the mould by utilizing the ejection needle 101 corresponding to the non-characteristic point of the mould in an upward ejection mode through the demoulding cylinder 9, so that the demoulding success rate is greatly improved, the problem of low traditional gas blowing demoulding success rate is solved, the device can be adapted to some more precise products, and the practicability of the device is greatly improved; additionally, the utility model discloses a cup joint cooling jacket 6 in the outside of bed die 2, utilize the liquid cooling circulation system to take away a large amount of heats of mould through cooling jacket 6 for injection moulding product can cool off rapidly and make the drawing of patterns smoother, reduces the refrigerated latency of moulding plastics, accelerates production efficiency, and need not personnel on duty, and reduction in production cost realizes big batch and continuous production.

Wherein, go up mould 3 and be located 2 directly over moulds, the bottom fixed mounting of rotational positioning axle 7, collection device 8, drawing of patterns cylinder 9, upset cylinder 11 is in ground, and collection device 8 is located 2 left sides of lower mould, realizes the basic function of moulding plastics.

The input ends of the upright post cylinder 4, the demolding cylinder 9 and the overturning cylinder 11 are fixedly connected with an electromagnetic control valve, the input end of the electromagnetic control valve is fixedly connected with an air pump, and the input end of the electromagnetic control valve is electrically connected with a controller, so that automation is realized, and labor cost is saved.

Wherein, the top surface fixed mounting of drawing of patterns faller 10 has a plurality of liftout needles 101, and the through-hole of bed die 2 and liftout needle 101 one-to-one, the diameter of liftout needle 101 and the through-hole diameter looks adaptation of bed die 2, the top surface of liftout needle 101 and the inner chamber bottom surface of bed die 2 are located same horizontal plane, utilize the liftout needle 101 that corresponds with the non-characteristic point of mould to pass through the ejecting mode of drawing of patterns cylinder 9 upwards with product and mould phase separation, improve the success rate of drawing of patterns greatly.

Wherein, the inside fixed mounting of cooling jacket 6 has cooling coil 62, cooling coil 62's both ends respectively with outlet pipe 12, circulating pump 13's tip fixed connection, the inboard fixed mounting of cooling jacket 6 has heat-conducting plate 61, the inboard of heat-conducting plate 61 and 2 outside friction coupling of bed die, cooling coil 62 evenly distributed is in cooling jacket 6, in the inner chamber of heat-conducting plate 61, the inboard of heat-conducting plate 61 and cooling coil 62's side weld mutually neglected on a left side, utilize liquid cooling circulation system to take away a large amount of heats of mould through cooling jacket 6, make injection product can cool off rapidly and make the drawing of patterns more smooth.

Wherein, cooling jacket 6, heat-conducting plate 61, cooling coil 62 are C font structure, and cooling jacket 6 activity cup joints in the right side of bed die 2, increase with the area of contact of bed die 2, improve the cooling effect.

Wherein, the top fixedly connected with hinge of upset cylinder 11 closes the piece, and the bottom surface fixed mounting of bed die 2 has a slide rail, and the top of hinge closes the piece and the slide rail sliding connection of bed die 2 for the product can be poured smoothly to bed die 2.

The utility model discloses the theory of operation:

referring to the description, FIG. 4: firstly, the product is extruded by the upright cylinder 4 and passes through the lower die 2, after the injection molding of the upper die 3, the product is continuously pumped into the cooling water tank 15 by the cooling water in the cooling jacket 6 through the circulating pump 13, the heat of the lower die 2 is taken away by the cooling water in the upper die 2, so that the product in the lower die 2 is rapidly cooled and solidified, the injection product can be rapidly cooled, the demolding is smoother, the waiting time for injection molding and cooling is reduced, after a period of time, the controller starts the demolding cylinder 9 to eject the product upwards by using the demolding needle plate 10, the product is separated from the lower die 2, the lower die 2 is ejected by starting the overturning cylinder 11, the product in the lower die 2 slides to the collecting device 8 to be collected, the purpose of continuous production is repeatedly achieved according to the steps, if the cooling efficiency needs to be accelerated, the cooling.

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

1. The utility model provides an injection mold's automatic demoulding device, includes mount (1), bed die (2), goes up mould (3), collection device (8), its characterized in that: the top of the fixing frame (1) is fixedly provided with a bottom plate (5), the bottom surface of the bottom plate (5) is fixedly provided with a stand column cylinder (4), the end of the stand column cylinder (4) is fixedly connected with the top surface of an upper die (3), the left end and the right end of the bottom surface of a lower die (2) are respectively fixedly provided with a rotary positioning shaft (7) and a turnover cylinder (11), the bottom surface of the lower die (2) is provided with a plurality of micro through holes and is provided with a demoulding needle plate (10) matched with the micro through holes, the bottom surface of the demoulding needle plate (10) is fixedly provided with a demoulding cylinder (9), one side of the fixing frame (1) is fixedly provided with a cooling jacket (6), the output end and the input end of the cooling jacket (6) are respectively and fixedly connected with a water outlet pipe (12) and a circulating pump (13), the other end of the water outlet pipe (, the other end of the water suction conduit (14) extends to the bottom of the inner cavity of the water tank (15).

2. The automatic demolding device for injection molds according to claim 1, characterized in that: the upper die (3) is located right above the lower die (2), the bottom ends of the rotary positioning shaft (7), the collecting device (8), the demolding cylinder (9) and the overturning cylinder (11) are fixedly installed on the ground, and the collecting device (8) is located on the left side of the lower die (2).

3. The automatic demolding device for injection molds according to claim 1, characterized in that: the input fixedly connected with solenoid electric valve of stand cylinder (4), drawing of patterns cylinder (9), upset cylinder (11), the input fixedly connected with air pump of solenoid electric valve, solenoid electric valve's input electric connection has the controller.

4. The automatic demolding device for injection molds according to claim 1, characterized in that: the top surface fixed mounting of drawing of patterns faller (10) has a plurality of liftout needles (101), the through-hole and the liftout needle (101) one-to-one of bed die (2), the diameter of liftout needle (101) and the through-hole diameter looks adaptation of bed die (2), the top surface of liftout needle (101) is located same horizontal plane with the inner chamber bottom surface of bed die (2).

5. The automatic demolding device for injection molds according to claim 1, characterized in that: the inside fixed mounting of cooling jacket (6) has cooling coil (62), the both ends of cooling coil (62) respectively with the tip fixed connection of outlet pipe (12), circulating pump (13), the inboard fixed mounting of cooling jacket (6) has heat-conducting plate (61), the inboard of heat-conducting plate (61) and the outside friction connection of bed die (2), cooling coil (62) evenly distributed is in the inner chamber of cooling jacket (6), heat-conducting plate (61), neglects the inboard of heat-conducting plate (61) and welds mutually with the side of cooling coil (62) on a left side.

6. The automatic demolding device for injection molds according to claim 5, wherein: the cooling jacket (6), the heat conducting plate (61) and the cooling coil (62) are of a C-shaped structure, and the cooling jacket (6) is movably sleeved on the right side of the lower die (2).

7. The automatic demolding device for injection molds according to claim 1, characterized in that: the top fixedly connected with hinge spare of upset cylinder (11), the bottom surface fixed mounting of bed die (2) has the slide rail, the slide rail sliding connection of the top of hinge spare and bed die (2).