CN111391246B

CN111391246B - Injection mold with sideslip guide structure

Info

Publication number: CN111391246B
Application number: CN202010231737.XA
Authority: CN
Inventors: 王蕾; 胡道春; 王红军
Original assignee: Nanjing Institute of Industry Technology
Current assignee: Chuzhou Bokang Mould Plastic Co ltd
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2022-02-15
Anticipated expiration: 2040-03-27
Also published as: CN111391246A

Abstract

The invention provides an injection mold with a transverse guide structure, which comprises a lower mold, an upper mold and a linkage mechanism, wherein the upper mold and the lower mold are separated molds, the lower mold is fixedly arranged on an injection molding table, the upper mold is movably arranged on a linking frame, the linking frame is fixedly arranged with the injection molding table, two horizontal sides of the upper mold are respectively provided with an extended flange, the flanges are in a strip block shape, the flanges are fixedly connected with a hoop structure through long bolts, the interior of the upper mold is provided with the linkage mechanism for tightly sleeving the upper mold, and the linkage mechanism is connected with the flanges through T-shaped plates; the invention enables the same upper die and lower dies with different structures to be matched to form the injection mold, thus effectively reducing the number of opened dies and the production cost, effectively moving the upper die to the lower die needing injection molding, reducing the labor intensity and improving the production efficiency, and being more beneficial to the production of enterprises.

Description

Injection mold with sideslip guide structure

Technical Field

The invention relates to the technical field of injection molds, in particular to an injection mold with a transverse moving guide structure.

Background

The injection mold is widely used in the mold industry as one of the molds, the mold has a good shaping effect in batch production due to the relatively fixed structural shape of the product, however, the mold opening price of a single product is high, particularly for the injection mold with little change in appearance but a modified structure, any product needs to be opened additionally, so as to meet the requirement of a new product, the mode undoubtedly increases the production cost, the waste of the mold is extremely serious, only part of the structure can be opened additionally aiming at the change of the part of the structure, the same part is reserved, two parts can be effectively closed, the purpose that products with various specifications can be produced in the same mold can be achieved, under the condition, the mode of separating the mold and the movement of the mold are the difficulties of the application, most of the dies are moved by adopting a manual hoisting mode, the alignment of an upper die and a lower die needs to be continuously adjusted in the manual hoisting mode, additional auxiliary equipment is needed, and the cost is also increased, so that a moving mode which can be conveniently moved and can be effectively positioned is formed in a variable die assembly of a movable upper die on the basis of a lower die, on one hand, the upper die and the lower die can be always kept in a horizontal state, and on the other hand, the guiding and moving functions are achieved.

Disclosure of Invention

The present invention is directed to an injection mold with a traversing guide structure that overcomes or at least partially solves the above-mentioned problems to solve the problem of a clamped injection mold being unable to move and guide.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

the invention provides an injection mold with a transverse guide structure, which comprises a lower mold, an upper mold and a linkage mechanism, wherein the upper mold and the lower mold are separated molds, the lower mold is fixedly arranged on an injection platform, the upper mold is movably arranged on a linking frame, the linking frame is fixedly arranged with the injection platform, two horizontal sides of the upper mold are respectively provided with a protruding flange, the flanges are in a strip block shape, the two flanges are arranged on the same horizontal plane, the outer side edges of the two flanges are respectively provided with an air nozzle for ventilation, the air nozzle is connected with an air pipe through a connector, the other end of the air pipe is fixedly connected with an air compressor, the air nozzle penetrates through the flanges and is communicated with a movable cavity, one side of the movable cavity is provided with a plurality of inner air holes which are arranged side by side, the inner air holes are used for inflating or deflating an air bag, the air nozzle and the plurality of inner air holes are in a communicated structure, and the connecting positions of the air nozzle and the inner air holes are arranged inside the flanges, the flange and the hoop structure are fixedly connected through a long bolt, a linkage mechanism for tightly sleeving the upper die is arranged inside the upper die, and the linkage mechanism is connected with the flange through a T-shaped plate;

the linkage mechanism comprises a movable cavity, an air bag, a guide cavity and guide beads, wherein the movable cavity is arranged in the support plate, the air bag is wrapped on the end face of the T-shaped plate, the edge of the air bag is sealed with the edge of the T-shaped plate, the air bag has elasticity and certain hardness, the air bag contains a plurality of inner air holes, so that external compressed air can be filled into the air bag, and the expansion volume of the air bag is larger than the volume of the movable cavity;

the T-shaped plate outward-facing end is connected with a flange, the flange is a part of the T-shaped plate extending out of the upper die, guide beads are arranged at the upper end and the lower end of a flat plate of the T-shaped plate and an air bag, the guide beads freely move in a track in a guide cavity, the guide cavity is a gap between the upper end and the lower end of the flat plate of the T-shaped plate and a movable cavity, a sealing ring is arranged between the guide beads and the air bag on the flat plate of the T-shaped plate, the sealing ring is sleeved and installed on the flat plate of the T-shaped plate, the thickness of the sealing ring is larger than that of the guide cavity, and the guide cavity is separated from a cavity where the air bag is located by a convex ring of the extending-out part of the sealing ring.

As a further scheme of the invention, a plurality of through holes for matching and installing long bolts are arranged in the vertical direction of the flange.

As a further scheme of the invention, the linking frame is of a frame structure, the top end of the linking frame is hung on the support frame, two parallel support plates are arranged at the bottom of the linking frame, and a hoop structure is arranged at the bottom of each support plate.

As a further scheme of the invention, two horizontal first convex blocks and two horizontal second convex blocks are arranged in opposite directions of the hoop structure, wherein the first convex blocks are fixedly installed with the supporting plate, the second convex blocks are movably installed with the supporting plate, the second convex blocks can slightly move a distance along the vertical direction of the supporting plate, the movable structure of the second convex blocks can conveniently connect the hoop structure with the flange, and the distance between the second convex blocks and the first convex blocks is larger than the thickness of the flange.

As a further scheme of the invention, one end of the second bump is provided with a connecting block, the end face of the connecting block is fixedly provided with a limiting block, the connecting block and the limiting block are integrally formed into an L shape, the limiting block is arranged upwards relative to a protruding part of the connecting block, the connecting block and the limiting block are both arranged in a micro-motion groove arranged on the support plate, and the micro-motion distance of the limiting block in the micro-motion groove is not more than 5 mm.

As a further scheme of the invention, the moving distance of the end surface of the T-shaped plate in the movable cavity is smaller than the distance between the sealing ring and the movable cavity.

As a further scheme of the invention, the upper surface of the lower die is arranged in parallel with the lower surface of the upper die.

The invention provides an injection mold with a transverse moving guide structure, which has the beneficial effects that: according to the invention, the upper die is set into the movable die which can move, in the practical application of injection molding, the upper die can be fixed under the action of air pressure, and the upper die can move in the connecting frame in a pressure relief manner, so that the same upper die can be matched with lower dies of different structures to form an injection mold, the number of opened dies can be effectively reduced, the production cost can be reduced, the upper die can be effectively moved to the lower die needing injection molding, the labor intensity is reduced, the production efficiency is improved, and the production of enterprises is facilitated.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

Fig. 1 is a schematic diagram of an overall three-dimensional structure according to an embodiment of the present invention.

Fig. 2 is a schematic overall side view of the structure according to the embodiment of the present invention.

Fig. 3 is a schematic view of a linkage mechanism mounting structure according to an embodiment of the present invention.

Fig. 4 is an enlarged schematic structural diagram of a position a in fig. 3 according to an embodiment of the present invention.

Fig. 5 is a schematic front structural view of a hoop structure according to an embodiment of the present invention.

In the figure: 1. a lower die; 2. an upper die; 21. a flange; 22. an air tap; 23. an inner air hole; 3. a linking frame; 4. a clamp structure; 41. a long bolt; 42. a first bump; 43. a second bump; 44. a micro-motion groove; 45. a joining block; 46. a limiting block; 5. a linkage mechanism; 51. a movable cavity; 52. an air bag; 53. a guide cavity; 54. a guide bead; 6. a T-shaped plate; 61. a seal ring; 62. and (4) convex rings.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

Referring to fig. 1-5, an injection mold with a traverse guide structure according to an embodiment of the present invention includes a lower mold 1, an upper mold 2 and a linkage mechanism 5, the upper mold 2 and the lower mold 1 are separate molds, the lower mold 1 is fixedly mounted on an injection platform, the upper mold 2 is movably mounted on a linking frame 3, the linking frame 3 is fixedly mounted on the injection platform, the upper mold 2 can move along the linking frame 3 direction relative to the lower mold 1 under the action of external force, a group of multiple uses can be realized by moving the upper mold 2 to match with different lower molds 1 in injection molds of different lower molds 1 of the same upper mold 2, such a form effectively saves the number of open molds, reasonably avoids the cost of open molds, and the movable manner avoids manual repeated mold drawing and moving to different lower molds 1, reduces labor intensity, improves production efficiency, both horizontal sides of the upper mold 2 are provided with protruding flanges 21, the flange 21 is in a strip block shape, the two flanges 21 are on the same horizontal plane, the outer sides of the two flanges 21 are respectively provided with an air nozzle 22 for ventilation, the air nozzle 22 is connected with an air pipe through a coupler, the other end of the air pipe is fixedly connected on an air compressor, the air nozzle 22 penetrates through the flanges 21 and is communicated with the movable cavity 51, the flanges 21 are provided with a plurality of inner air holes 23 which are arranged side by side on one side of the movable cavity 51, the inner air holes 23 are used for inflating or deflating the air bag 52, the air nozzle 22 and the inner air holes 23 are in a communicated structure, the connecting positions of the air nozzle 22 and the inner air holes 23 are arranged inside the flanges 21, and the additional load bearing structure is avoided, meanwhile, the weight of the whole upper die 2 can be reduced, the flange 21 and the hoop structure 4 are fixedly connected through a long bolt 41, a linkage mechanism 5 used for tightly sleeving the upper die 2 is arranged inside the upper die 2, and the linkage mechanism 5 is connected with the flange 21 through a T-shaped plate 6.

Preferably, the flange 21 is provided with a plurality of through holes in the vertical direction for fitting the long bolts 41, and the flange 21 is preferably provided at a middle position of the side of the upper die 2, so that the upper die 2 can be prevented from being balanced and stable during movement or after the air bag 52 is deflated, and the movement of the upper die 2 is facilitated.

Preferably, the connecting frame 3 is a frame structure, the top end of the connecting frame 3 is hung on a support frame, the bottom of the connecting frame 3 is provided with two parallel support plates, the bottom of each support plate is provided with a hoop structure 4, the hoop structure 4 is provided with two horizontal first bumps 42 and second bumps 43 in opposite directions, wherein the first bumps 42 and the support plates are fixedly arranged, the second bumps 43 and the support plates are movably arranged, the second bumps 43 can slightly move a distance along the vertical direction of the support plates, the movable structure of the second bumps 43 can facilitate the connection of the hoop structure 4 and the flange 21, the distance between the second bumps 43 and the first bumps 42 is larger than the thickness of the flange 21, so that the connecting frame 3 can be horizontally inserted and moved from one end of the flange 21 to the other end, and the first bumps 42 and the second bumps 43 are precisely attached to the upper surface and the lower surface of the flange 21 under the screwing action of the long bolts 41, meanwhile, in order to ensure the precision of the upper die 2, the movable second bump 43 can effectively keep the connection position horizontal and uniformly stressed, so that the injection molded product has higher precision.

Preferably, one end of the second bump 43 is provided with a joint block 45, a limit block 46 is fixedly arranged on the end face of the joint block 45, the joint block 45 and the limit block 46 are integrally formed into an L shape, the limit block 46 is upwards arranged relative to a convex part of the joint block 45, the joint block 45 and the limit block 46 are both arranged in a micro-motion groove 44 formed in a supporting plate, the micro-motion distance of the limit block 46 in the micro-motion groove 44 is not more than 5 mm, the micro-motion is convenient to install, the level of an upper die can be guaranteed at the same time, and the lower die 1 and the upper die 2 are enabled to have higher processing precision after being closed.

Preferably, the linkage mechanism 5 comprises a movable cavity 51, an air bag 52, a guide cavity 53 and a guide bead 54, wherein the movable cavity 51 is arranged inside the support plate, the air bag 52 is wrapped on the end face of the T-shaped plate 6, the edge of the air bag 52 is sealed with the edge of the T-shaped plate 6, the air bag 52 has elasticity and certain hardness, the air bag 52 contains a plurality of internal air holes 23, external compressed air can be filled into the air bag 52, the expansion volume of the air bag 52 is larger than the volume of the movable cavity 51, the air bag 52 can be completely saturated and arranged in the movable cavity 51, the air pressure of the air bag 52 can enable the other side edge of the T-shaped plate 6 to be tightly arranged with the support plate, looseness between the T-shaped plate 6 and the upper die 2 is avoided, and the precision of the die is improved.

Preferably, one end of the T-shaped plate 6, which faces outwards, is connected with the flange 21, the flange 21 is a part of the T-shaped plate 6, which extends out of the upper die 2, the upper end and the lower end of a flat plate, which is provided with the T-shaped plate 6 and the air bag 52, are both provided with the guide beads 54, the guide beads 54 freely move in a track in the guide cavity 53, the guide cavity 53 is a gap between the upper end and the lower end of the flat plate of the T-shaped plate 6 and the movable cavity 51, the flat plate of the T-shaped plate 6 is provided with the sealing ring 61 between the guide beads 54 and the air bag 52, the sealing ring 61 is sleeved and arranged on the flat plate of the T-shaped plate 6, the thickness of the sealing ring 61 is larger than that of the guide cavity 53, and the bead 62 of the protruding portion of the sealing ring 61 separates the guide chamber 53 from the chamber in which the air bag 52 is located, under the condition that the air bag 52 is damaged, the convex ring 62 can perform secondary sealing on the linkage structure 5, so that the problem of the quality of the air bag 52, which causes the failure of an injection mold, the increase of cost and the waste of resources, is avoided.

Preferably, the moving distance of the flat end surface of the T-shaped plate 6 in the movable cavity 51 is smaller than the distance between the sealing ring 61 and the movable cavity 51, so as to prevent the sealing ring 61 from falling off from the guide cavity 53.

The working principle of the injection mold with the transverse moving guide structure is as follows: the upper die 2 and the lower die 1 are horizontally placed after being adjusted in level, wherein the lower die 1 is composed of dies in a plurality of different shapes, the upper die 2 is a fixed die, the air bag 52 is filled with gas through an air compressor, the air bag 52 is bulged, the T-shaped plate 6 is tightly connected with the edge of the upper die 2, in the moving process of the T-shaped plate 6, the guide beads 54 always keep the T-shaped plate 6 to horizontally move in the guide cavity 53, the phenomenon of blocking is avoided, the upper die 2 is deviated, the upper die 2 is tightly connected with the linking frame 3, the shaking is avoided, and the upper die 2 is kept to have higher precision when being matched with the lower die 1.

The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. An injection mold with a transverse guide structure is characterized by comprising a lower mold (1), an upper mold (2) and a linkage mechanism (5), wherein the upper mold (2) and the lower mold (1) are separated molds, the lower mold (1) is fixedly arranged on an injection platform, the upper mold (2) and a linking frame (3) are movably arranged in the horizontal direction, the linking frame (3) and the injection platform are fixedly arranged, two parallel supporting plates are arranged at the bottom of the linking frame (3), a hoop structure (4) is arranged at the bottom of each supporting plate, two extending flanges (21) are arranged on two horizontal sides of the upper mold (2), each flange (21) is in a strip block shape, the two flanges (21) are arranged on the same horizontal plane, an air faucet (22) used for ventilation is arranged on the outer side edges of the two flanges (21), the air faucet (22) is connected with an air pipe through a coupler, and the other end of the air pipe is fixedly connected to an air compressor, the air tap (22) penetrates through the flange (21) to be communicated with the movable cavity (51), a plurality of inner air holes (23) which are arranged side by side are formed in one side of the movable cavity (51) of the flange (21), the inner air holes (23) are used for inflating or deflating the air bag (52), the air tap (22) and the inner air holes (23) are of a communicated structure, the connecting position of the air tap (22) and the inner air holes (23) is arranged inside the flange (21), the flange (21) and the hoop structure (4) are fixedly connected through long bolts (41), a linkage mechanism (5) used for tightly sleeving the upper die (2) is arranged inside the upper die (2), and the linkage mechanism (5) is connected with the flange (21) through a T-shaped plate (6);

the linkage mechanism (5) comprises a movable cavity (51), an air bag (52), a guide cavity (53) and guide beads (54), the movable cavity (51) is arranged inside the upper die (2), the air bag (52) is wrapped on the end face of the T-shaped plate (6), the edge of the air bag (52) is sealed with the edge of the T-shaped plate (6), the air bag (52) has elasticity and hardness, the air bag (52) contains the internal air holes (23), and the expanding volume of the air bag (52) is larger than that of the movable cavity (51);

the flange (21) is a part of the T-shaped plate (6) extending out of the upper die (2), guide beads (54) are arranged at the upper end and the lower end of a flat plate on which the T-shaped plate (6) and the air bag (52) are mounted, the guide beads (54) freely move in a track in a guide cavity (53), the guide cavity (53) is a gap between the upper end and the lower end of the flat plate of the T-shaped plate (6) and the movable cavity (51), a sealing ring (61) is arranged between the guide beads (54) and the air bag (52) on the flat plate of the T-shaped plate (6) in a sleeved mode on the flat plate of the T-shaped plate (6), the thickness of the sealing ring (61) is larger than that of the guide cavity (53), and a cavity where the guide cavity (53) and the air bag (52) are located is separated by a convex ring (62) of the extending-out part of the sealing ring (61).

2. An injection mold with a traverse guide structure as defined in claim 1, wherein the flange (21) is provided with a plurality of through holes in a vertical direction for fitting the long bolts (41).

3. A lateral movement guide structure-equipped injection mold as claimed in claim 1, wherein the engaging frame (3) is a frame structure, and the top end of the engaging frame (3) is hung on a supporting frame.

4. An injection mould with a traverse guide according to claim 3, characterized in that the clamp structures (4) are provided with two horizontal first (42) and second (43) cams in opposite directions, wherein the first cam (42) is fixedly mounted to the support plate and the second cam (43) is movably mounted to the support plate, the second cam (43) can be moved a little further in the vertical direction along the support plate, and the distance between the second cam (43) and the first cam (42) is larger than the thickness of the flange (21).

5. An injection mold with a traverse guide structure as claimed in claim 4, wherein the second protrusion (43) is provided at one end with a joint block (45), a stop block (46) is fixedly provided at an end face of the joint block (45), the joint block (45) and the stop block (46) are integrally formed into an L shape, the stop block (46) is disposed upward relative to a protruding portion of the joint block (45), the joint block (45) and the stop block (46) are both mounted in a micro-groove (44) provided on the support plate, and a micro-movement distance of the stop block (46) in the micro-groove (44) is not more than 5 mm.

6. An injection mold with a traverse guide structure as defined in claim 1, wherein the distance of movement of the plate end face of the T-shaped plate (6) in the movable cavity (51) is smaller than the distance of the seal ring (61) from the movable cavity (51).

7. An injection mold with a traverse guide structure as defined in claim 1, wherein the upper surface of the lower mold (1) is disposed in parallel with the lower surface of the upper mold (2).