CN219311913U

CN219311913U - Novel injection mold

Info

Publication number: CN219311913U
Application number: CN202320093025.5U
Authority: CN
Inventors: 刘学汉; 罗鹏
Original assignee: Kunshan Guanyeda Precision Industry Co ltd
Current assignee: Kunshan Guanyeda Precision Industry Co ltd
Priority date: 2023-01-31
Filing date: 2023-01-31
Publication date: 2023-07-07
Anticipated expiration: 2033-01-31

Abstract

The utility model discloses a novel injection mold, which comprises a top plate and a bottom plate, wherein the upper end of the bottom plate is provided with a middle plate, the upper end of the middle plate is provided with a first mounting groove and a second mounting groove, the first mounting groove is arranged left and right, the second mounting groove is arranged front and back and is communicated with the first mounting groove, the intersection of the first mounting groove and the second mounting groove is provided with a lower molding structure, two sides of the lower molding structure in the first mounting groove are respectively provided with a second auxiliary molding structure in a sliding manner, two sides of the lower molding structure in the second mounting groove are respectively provided with a first auxiliary molding structure in a sliding manner, the upper end of the top plate is provided with a material injection head in a penetrating manner, and the middle part of the lower end of the top plate is provided with an upper molding core plate in a clamping manner. The novel injection mold disclosed by the utility model ensures the sliding stability of the push-pull block, reduces the occupied space of the molding slide block during mold opening, has a more compact mold structure, and improves the space utilization rate of the mold.

Description

Novel injection mold

Technical Field

The utility model relates to the technical field of molds, in particular to a novel injection mold.

Background

The injection mold is a tool for producing plastic products and also a tool for endowing the plastic products with complete structures and precise dimensions. Injection molding is a processing method used in mass production of parts with complex shapes, and specifically refers to injection molding of heated and melted plastic into a mold cavity by an injection molding machine under high pressure, and cooling and solidification are carried out to obtain a molded product. After injection molding, it is necessary to perform multi-directional mold opening and releasing in order to take out the molded product.

Shell-like products are a common class of articles that can be obtained by injection moulding. After the shell product is subjected to injection molding, when the demolding and the mold opening are carried out, the molded inner core used for molding the inner cavity of the shell product has larger demolding and mold opening stroke compared with the structure of the outer wall of the molded shell product, and correspondingly, when the mold is closed, the stroke of the molded inner core is larger, so that when the demolding and the mold opening are carried out, larger driving force is applied to the molded inner core, the movement stability of the molded inner core is ensured, and the inner wall molding quality of the shell product is ensured to be a problem to be solved; in addition, when the intersection of two adjacent end surfaces of the shell product is a surface instead of a line, and the included angle between the surface and the two end surfaces is an obtuse angle, the mold opening and closing stroke of the structure for forming the surface is larger than that of the structure for forming the end surfaces, so that the space occupied by the structure for forming the surface in mold opening is reduced, and the problem to be solved is to improve the utilization rate of the mold space. Therefore, we propose a novel injection mold.

Disclosure of Invention

The utility model mainly aims to provide a novel injection mold which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a novel injection mold, includes roof, bottom plate, the roof sets up the top at the bottom plate, the medium plate is installed to the upper end of bottom plate, mounting groove and No. two mounting grooves have been seted up to the upper end of medium plate, no. one mounting groove is controlling and sets up, no. two mounting grooves are setting up around and being linked together with a mounting groove, the intersection department of mounting groove and No. two mounting grooves installs down shaping structure, the equal slidable mounting in both sides that lie in shaping structure under in the mounting groove No. one has No. two auxiliary shaping structures, the equal slidable mounting in both sides that lie in shaping structure under No. two mounting grooves has No. one auxiliary shaping structure, the material injection head is installed to the upper end interlude of roof, the shaping core is installed to the lower extreme middle part joint of roof, the middle part of going up shaping core is provided with the guide hole that link up from top to bottom, the guide hole is linked together with the inner chamber of material injection head.

Preferably, the left end and the right end of the middle plate are fixedly provided with mounting frames, the mounting frames are -shaped structures and are opened towards the middle plate, driving pieces are fixedly arranged on the outer vertical surfaces of the two mounting frames, the output ends of the driving pieces movably penetrate through the mounting frames and are in transmission connection with push-pull rods, and the push-pull rods are clamped on the second auxiliary forming structure; the lower end of the top plate is positioned at two sides of the upper molding core plate, a group of inclined ejector rods are installed in a penetrating mode, the two groups of inclined ejector rods are respectively connected with the first auxiliary molding structure in a penetrating and movable mode, and the inclined ejector rods and the first auxiliary molding structure form an inclined plane transmission structure.

Preferably, the lower shaping structure is including installing the lower shaping core of crossing department at mounting groove No. one and mounting groove No. two, the baffle box has been seted up at the upper end middle part of lower shaping core, the shaping die cavity has all been seted up to the upper end of lower shaping core in the both sides of baffle box, the baffle box is controlling the setting, the end all is setting up downwards and runs through the cavity wall in two shaping cavities respectively about the baffle box, the spout has been seted up respectively to the front end and the rear end of lower shaping core, and two spouts are linked together with two shaping cavities on the right side respectively around.

Preferably, the chute is arranged obliquely, the upper molding core plate is matched with the lower molding core plate, the lower end of the upper molding core plate is positioned at two sides of the guide hole, the distribution chute is communicated with the guide hole, and the two distribution chutes are matched with the guide chute.

Preferably, the first auxiliary forming structure comprises a first auxiliary block and a forming sliding block, the first auxiliary block and the forming sliding block are respectively slidably mounted in the second mounting groove and the sliding groove, one end of the first auxiliary block, which faces the lower forming structure, is provided with a transmission block and a slot, the transmission block is located above the slot, the forming sliding block is matched with the slot, the upper end of the forming sliding block is provided with a transmission groove, the transmission groove is obliquely arranged, and the transmission block is mounted in the transmission groove in a transmission manner.

Preferably, the first auxiliary block is provided with an inclined top hole, the inclined top rod is movably arranged in the inclined top hole, the inclined top rod and the inclined top hole form an inclined plane transmission structure, the lower end of the top plate is positioned at the outer sides of the two groups of inclined top rods, the two push blocks are respectively arranged at the outer sides of the two groups of inclined top rods, and the two push blocks are respectively connected with the first auxiliary block in a transmission manner and form the inclined plane transmission structure.

Preferably, the second auxiliary forming structure comprises a push-pull block, the push-pull block is slidably mounted in the first mounting groove, a forming inner core is fixedly mounted at one end of the push-pull block, facing the lower forming structure, and is matched with the forming cavity, a push-pull groove is formed at one end, far away from the lower forming structure, of the push-pull block, and the push-pull rod is clamped in the push-pull groove.

Compared with the prior art, the utility model has the following beneficial effects:

1. in the utility model, a molding inner core in the second auxiliary molding structure is used for molding an inner cavity of the shell structure, and the second auxiliary structure slides in the first mounting groove when the mold is opened and closed; the second auxiliary forming structure is driven to slide by the driving piece (hydraulic oil cylinder) and the push-pull rod, the push-pull rod is movably clamped in a push-pull groove on the push-pull block, the push-pull rod is connected with the push-pull block in a non-rigid mode, and the push-pull block and the groove wall surface of the first mounting groove form an engagement structure, so that the motion of the push-pull block is driven by the driving piece, but the motion stability of the push-pull block is not influenced by the driving piece, and the sliding stability of the push-pull block is ensured; the hydraulic oil cylinder is used as a driving piece, so that enough power can be provided for the movement of the push-pull block, and the opening and closing of the second auxiliary structure is ensured.

2. In the utility model, the cavity wall surface of the molding cavity is used for molding the surface of the intersection of two adjacent end surfaces of the shell product, the molding slide block in the first auxiliary molding structure is used for molding the intersection of two adjacent end surfaces of the shell product, and the inclined ejector rod is matched with the inclined ejector hole during demolding, so that the first auxiliary block in the first auxiliary molding structure is far away from the lower molding core plate, meanwhile, the transmission block drives the molding slide block to slide, the molding slide block slides obliquely far away from the molded shell product, one part of the molding slide block is retracted into the slot, the inclined movement of the molding slide block is generated through the linear movement of the first auxiliary block, and the partial structure of the slot retracted into the molding slide block is utilized, thereby realizing the reduction of the occupied space of the molding slide block during mold opening, ensuring the more compact mold structure and improving the space utilization rate of the mold.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a novel injection mold of the present utility model;

FIG. 2 is a schematic diagram of a middle plate and structures on the middle plate;

FIG. 3 is a schematic view of the bottom construction of the top plate;

FIG. 4 is a schematic view of the lower molding structure;

FIG. 5 is a schematic structural view of a first auxiliary forming structure;

fig. 6 is a schematic structural view of the secondary molding structure.

In the figure: 1. a top plate; 2. a bottom plate; 3. a middle plate; 31. a first mounting groove; 32. a second mounting groove; 4. an upper molding core plate; 5. a lower molding structure; 6. a first auxiliary forming structure; 7. a second auxiliary forming structure; 8. a mounting frame; 9. a driving member; 91. a push-pull rod; 10. a material injection head; 11. an inclined ejector rod; 12. a pushing block; 41. a material guiding hole; 42. a material dividing groove; 51. a lower molding core plate; 52. a molding cavity; 53. a guide groove; 54. a chute; 61. a first auxiliary block; 62. forming a sliding block; 63. a transmission block; 64. a slot; 65. a transmission groove; 611. a slanting top hole; 71. a push-pull block; 72. forming an inner core; 73. push-pull groove.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1-6, a novel injection mold comprises a top plate 1 and a bottom plate 2, wherein the top plate 1 is arranged above the bottom plate 2, a middle plate 3 is arranged at the upper end of the bottom plate 2, a first mounting groove 31 and a second mounting groove 32 are formed at the upper end of the middle plate 3, the first mounting groove 31 is arranged left and right, the second mounting groove 32 is arranged front and back and is communicated with the first mounting groove 31, a lower forming structure 5 is arranged at the intersection of the first mounting groove 31 and the second mounting groove 32, a second auxiliary forming structure 7 is slidably arranged at two sides of the lower forming structure 5 in the first mounting groove 31, a first auxiliary forming structure 6 is slidably arranged at two sides of the lower forming structure 5 in the second mounting groove 32, and a material injecting head 10 is installed at the upper end of the top plate 1 in an inserted manner. The injection head 10 is provided with an inner cavity penetrating both ends thereof, through which a flow for injection molding a product flows into the mold. The middle part joint of the lower extreme of roof 1 installs shaping core 4, and the middle part of shaping core 4 is provided with the guide hole 41 that link up from top to bottom, and guide hole 41 is linked together with the inner chamber of annotating stub bar 10.

As the further explanation of above-mentioned technical scheme, both ends all fixed mounting have mounting bracket 8 about medium plate 3, and mounting bracket 8 is font structure and opening towards medium plate 3, all fixed mounting has driving piece 9 on the outer facade of two mounting brackets 8, and the output activity of driving piece 9 runs through mounting bracket 8 and the transmission is connected with push-and-pull rod 91, and push-and-pull rod 91 joint is on No. two auxiliary forming structure 7. In a specific embodiment, the driving member 9 is a hydraulic cylinder, and provides power for sliding of the second auxiliary forming structure 7 in the first mounting groove 31, so as to open and close the die along the first mounting groove 31. The lower end of the top plate 1 is positioned on two sides of the upper molding core plate 4, a group of inclined ejector rods 11 are installed in a penetrating mode, each group of inclined ejector rods 11 is two, and the two groups of inclined ejector rods 11 are distributed into a splayed shape. The two groups of inclined ejector rods 11 are respectively and movably connected with the two first auxiliary forming structures 6 in a penetrating way, the inclined ejector rods 11 and the first auxiliary forming structures 6 form an inclined plane transmission structure, when the inclined ejector rods 11 move upwards along with the top plate 1, the two first auxiliary forming structures 6 are pushed to be far away from the lower forming structures 5 along the second mounting grooves 32, die opening along the second mounting grooves 32 is achieved, and when the inclined ejector rods 11 move downwards along with the top plate 1, the two first auxiliary forming structures 6 are pushed to be close to the lower forming structures 5 along the second mounting grooves 32, and die closing along the second mounting grooves 32 is achieved.

As a further explanation of the above technical solution, the lower molding structure 5 includes a lower molding core plate 51 installed at the intersection of the first installation groove 31 and the second installation groove 32, a guide groove 53 is provided in the middle of the upper end of the lower molding core plate 51, molding cavities 52 are provided on both sides of the guide groove 53 at the upper end of the lower molding core plate 51, the guide groove 53 is provided left and right, the left and right ends of the guide groove 53 are provided downward and respectively penetrate through the cavity walls of the two molding cavities 52, and after the flow for product molding enters the guide groove 53, the flow is split and enters the two molding cavities 52 respectively, and the flow of the flow is stable. The front end and the rear end of the lower molding core plate 51 are respectively provided with a sliding groove 54, and the front sliding groove 54 and the rear sliding groove 54 are respectively communicated with the right molding cavity 52 and the left molding cavity 52. The chute 54 is inclined, the upper molding core plate 4 is matched with the lower molding core plate 51, the lower end of the upper molding core plate 4 is positioned at two sides of the material guiding hole 41 and is provided with a material dividing groove 42, the material dividing groove 42 is communicated with the material guiding hole 41, the two material dividing grooves 42 are matched with a material guiding groove 53, and after the flow material for product molding enters the mold through the inner cavity of the material injection head 10, the flow material enters the material dividing groove 42 and the material guiding groove 53 through the material guiding hole 41, so that the flow material is divided.

As a further explanation of the above technical solution, the auxiliary forming structure 6 includes an auxiliary block 61 and a forming slider 62, where the auxiliary block 61 and the forming slider 62 are slidably mounted in the second mounting groove 32 and the sliding groove 54, respectively, and the auxiliary block 61 forms an engagement structure with the groove wall surface of the second mounting groove 32, so that the auxiliary block 61 can slide in the second mounting groove 32 without disengaging. One end of the first auxiliary block 61 facing the lower forming structure 5 is provided with a transmission block 63 and a slot 64, the transmission block 63 is positioned above the slot 64, the forming sliding block 62 is matched with the slot 64, the upper end of the forming sliding block 62 is provided with a transmission groove 65, the transmission groove 65 is obliquely arranged, and the transmission block 63 is installed in the transmission groove 65 in a transmission mode. The first auxiliary block 61 is provided with an inclined ejection hole 611, the inclined ejection rod 11 is movably arranged in the inclined ejection hole 611, the inclined ejection rod 11 and the inclined ejection hole 611 form an inclined plane transmission structure, the push blocks 12 are respectively arranged at the outer sides of the two groups of the inclined ejection rods 11 at the lower end of the top plate 1, and the two push blocks 12 are respectively connected with the first auxiliary block 61 in a transmission manner and form an inclined plane transmission structure.

In the above technical solution, when the inclined ejector rod 11 moves up along the inclined ejector hole 611 to push the first auxiliary block 61 away from the lower molding core plate 51, the driving block 63 drives the molding slide 62 to move, so that the molding slide 62 slides in the chute 54 and is far away from the molding cavity 52 to be received in the slot 64, thereby realizing mold opening and demolding. And when the inclined ejector rod 11 moves down along the inclined ejector hole 611 to push the first auxiliary block 61 to move down the molding core plate 51, the transmission block 63 pushes back the molding slide 62 to return the molding slide 62 to the molding position.

As a further explanation of the above technical solution, the second auxiliary forming structure 7 includes a push-pull block 71, where the push-pull block 71 is slidably mounted in the first mounting groove 31, and the push-pull block 71 forms an engagement structure with a groove wall surface of the first mounting groove 31, so that the push-pull block 71 can slide in the first mounting groove 31 without being separated from the first mounting groove. A shaping inner core 72 is fixedly arranged on one end of the push-pull block 71 facing the downward shaping structure 5. The molding core 72 cooperates with the molding cavity 52, and after the molding core 72 moves into the molding cavity 52, the push-pull block 71, the molding core 72, the lower molding core plate 51, the upper molding core plate 4 and the molding slider 62 together enclose a product injection molding cavity. The push-pull block 71 is provided with a push-pull groove 73 at one end far away from the lower molding structure 5, and the push-pull rod 91 is clamped in the push-pull groove 73.

It should be noted that the utility model is a novel injection mold, which is used for injection molding shell products and is matched with an injection molding machine. The flow material extruded by the injection molding machine and used for product molding enters the inner cavity of the injection head 10, enters the material dividing groove 42 and the material guiding groove 53 through the material guiding hole 41, and is divided into two product injection molding cavities for molding. After molding, the top plate 1 and the bottom plate 2 are pulled open, and at the same time, the two driving pieces 9 are started, at this time, the two groups of inclined ejector rods 11 push away the two first auxiliary molding structures 6, the two driving pieces 9 pull away the two second auxiliary molding structures 7, so that the molding inner core 72 is moved out of the product, the molding sliding block 62 is separated from the product, mold opening is realized, and then the product is taken out, so that injection molding of the product is completed.

After the product is taken out, the top plate 1 and the bottom plate 2 are pushed to be close, the two groups of inclined ejector rods 11 and the two pushing blocks 12 are respectively in transmission connection with the outer side surfaces of the inclined ejector holes 611 and the first auxiliary block 61, the two first auxiliary forming structures 6 are pushed to be close, the two first auxiliary forming structures 6 are moved back to the forming position, the two driving parts 9 push the two second auxiliary forming structures 7 to be close, the two second auxiliary forming structures 7 are moved back to the forming position, the top plate 1 is contacted with the middle plate 3, die assembly is completed, and preparation is made for the next injection molding.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. Novel injection mold, including roof (1), bottom plate (2), its characterized in that: the top board (1) sets up the top at bottom plate (2), medium plate (3) are installed to the upper end of bottom plate (2), mounting groove (31) and No. two mounting grooves (32) have been seted up to the upper end of medium plate (3), no. one mounting groove (31) are controlling and set up, no. two mounting grooves (32) are setting up around and are linked together with mounting groove (31), forming structure (5) down is installed in crossing department of mounting groove (31) and No. two mounting grooves (32), no. two auxiliary shaping structures (7) are all slidable mounting in the both sides that are located forming structure (5) down in mounting groove (31), no. two auxiliary shaping structures (6) are all slidable mounting in the both sides that are located forming structure (5) down in mounting groove (32), material injection head (10) are installed to the upper end of top board (1), forming core board (4) are installed in the middle part joint in the lower extreme, material guide hole (41) are linked together in the middle part of upper core board (4).

2. The novel injection mold of claim 1, wherein: the left end and the right end of the middle plate (3) are fixedly provided with mounting frames (8), the mounting frames (8) are -shaped structures and are opened towards the middle plate (3), driving pieces (9) are fixedly arranged on outer vertical surfaces of the two mounting frames (8), the output ends of the driving pieces (9) movably penetrate through the mounting frames (8) and are in transmission connection with push-pull rods (91), and the push-pull rods (91) are clamped on the second auxiliary forming structure (7); the lower extreme of roof (1) is located the both sides of last shaping core (4) and all alternates and install a set of oblique ejector pins (11), and two sets of oblique ejector pins (11) alternate swing joint with two auxiliary shaping structures (6) respectively, and oblique ejector pins (11) and auxiliary shaping structures (6) constitution inclined plane transmission structure.

3. The novel injection mold of claim 2, wherein: the lower shaping structure (5) is including installing lower shaping core (51) in the intersection department of mounting groove (31) and mounting groove No. two (32), baffle box (53) have been seted up at the upper end middle part of lower shaping core (51), shaping die cavity (52) have all been seted up to the upper end of lower shaping core (51) in the both sides of baffle box (53), baffle box (53) are controlling and set up, the left and right ends of baffle box (53) all are setting up downwards and run through the chamber wall of two shaping chambers (52) respectively, spout (54) have been seted up respectively to the front end and the rear end of lower shaping core (51), and two spouts (54) are linked together with two shaping chambers (52) on the right side respectively.

4. A novel injection mold according to claim 3, characterized in that: the chute (54) is obliquely arranged, the upper molding core plate (4) is matched with the lower molding core plate (51), the lower ends of the upper molding core plates (4) are positioned on two sides of the material guiding holes (41) respectively, the material separating grooves (42) are communicated with the material guiding holes (41), and the two material separating grooves (42) are matched with the material guiding grooves (53).

5. A novel injection mold according to claim 3, characterized in that: auxiliary shaping structure (6) No. one includes auxiliary block (61) and shaping slider (62), auxiliary block (61) and shaping slider (62) are slidable mounting respectively in second mounting groove (32) and spout (54), the one end of shaping structure (5) down is provided with driving block (63) and slot (64) on auxiliary block (61), driving block (63) are located slot (64) top, shaping slider (62) cooperatees with slot (64), driving groove (65) have been seted up to the upper end of shaping slider (62), driving groove (65) are the slope setting, driving block (63) transmission is installed in driving groove (65).

6. The novel injection mold of claim 5, wherein: the auxiliary blocks (61) are provided with inclined jacking holes (611), the inclined jacking rods (11) are movably arranged in the inclined jacking holes (611), the inclined jacking rods (11) and the inclined jacking holes (611) form an inclined plane transmission structure, the lower ends of the top plates (1) are positioned at the outer sides of the two groups of the inclined jacking rods (11) respectively, the pushing blocks (12) are respectively arranged at the outer sides of the two groups of the inclined jacking rods, and the two pushing blocks (12) are respectively connected with the two auxiliary blocks (61) in a transmission mode and form an inclined plane transmission structure.

7. A novel injection mold according to claim 3, characterized in that: the second auxiliary forming structure (7) comprises a push-pull block (71), the push-pull block (71) is slidably mounted in a first mounting groove (31), a forming inner core (72) is fixedly mounted at one end of the push-pull block (71) facing to the lower forming structure (5), the forming inner core (72) is matched with the forming cavity (52), a push-pull groove (73) is formed at one end, far away from the lower forming structure (5), of the push-pull block (71), and the push-pull rod (91) is clamped in the push-pull groove (73).