CN217098709U

CN217098709U - Axial core-pulling demoulding mould

Info

Publication number: CN217098709U
Application number: CN202122617012.7U
Authority: CN
Inventors: 周杰; 郑留栓
Original assignee: Suzhou Yaohui Precision Mould Co ltd
Current assignee: Suzhou Yaohui Precision Mould Co ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-08-02
Anticipated expiration: 2031-10-29

Abstract

The utility model discloses an axial drawing core drawing and demolding type mold relates to the injection mold field, and its technical scheme main points are: the upper die frame and the lower die frame are arranged on the upper base plate and the lower base plate respectively, an upper die core and a lower die core are arranged on the upper die frame and the lower die frame respectively, an upper die cavity and a lower die cavity are arranged on the upper die core and the lower die core respectively, a mandrel is fixed on the lower die core, a plurality of first inclined sliding portions and second inclined sliding portions are arranged on the outer peripheral wall of the mandrel in an upward inclined mode, a first core-pulling slider and a second core-pulling slider are connected to the first inclined sliding portions and the second inclined sliding portions in a sliding mode respectively, and a driving assembly used for driving the first core-pulling slider and the second core-pulling slider to slide is arranged on the lower base plate. The utility model discloses during the drawing of patterns, first slider of loosing core and second are loosed core the slider and can be separated from the product respectively for there is not mutual interference between the overhead kick of product and the mould, can realize the smooth drawing of patterns of product.

Description

Axial core-pulling demoulding mould

Technical Field

The utility model relates to an injection mold field, more specifically say, it relates to an axial drawing core drawing and demoulding formula mould.

Background

Technique of

An injection mold is a tool for producing plastic products and also a tool for giving the plastic products complete structure and precise dimensions. Injection molding is a processing method used for mass production of parts with complex shapes, and particularly relates to a method for injecting heated and melted plastic into a mold cavity from an injection molding machine at high pressure, and obtaining a formed product after cooling and solidification. However, some existing products are designed more and more complicated, for example, a ring-shaped part is provided with a plurality of reverse buckles on the inner peripheral wall, and after the traditional mold is used for injection molding, nondestructive demolding is difficult to achieve, so that the yield of the products is low.

Therefore, a new solution is needed to solve this problem.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide an axial drawing core drawing of patterns formula mould, during the drawing of patterns, first slider and the second of loosing core is loosed core and is drawn core the slider and can be separated from the product respectively for there is not mutual interference between the overhead kick of product and the mould, can realize the smooth drawing of patterns of product.

The above technical purpose of the present invention can be achieved by the following technical solutions: an axial core-pulling demoulding mold comprises an upper base plate and a lower base plate, wherein an upper mold base and a lower mold base are respectively arranged at corresponding positions of the upper base plate and the lower base plate, an upper mold core and a lower mold core are respectively coated at corresponding positions of the upper mold base and the lower mold base, an upper mold cavity and a lower mold cavity are respectively arranged at corresponding positions of the upper mold core and the lower mold core, a pouring hole groove communicated with the upper mold cavity and the lower mold cavity is arranged on the upper mold core in a penetrating manner, a core shaft is fixed in the lower mold cavity on the lower mold core, a plurality of first inclined sliding parts and second inclined sliding parts are obliquely arranged on the peripheral wall of the core shaft upwards, the inclination angle of the first inclined sliding parts is larger than that of the second inclined sliding parts, the first inclined sliding parts and the second inclined sliding parts are arranged around the periphery of the core shaft at intervals, and a first core-pulling slider and a second core-pulling slider are respectively connected to the first inclined sliding parts and the second inclined sliding parts in a sliding manner, the first core-pulling sliding block and the second core-pulling sliding block are provided with inverted grooves, a plurality of cavities used for product forming are formed among the surface of the first core-pulling sliding block and the second core-pulling sliding block, the inverted grooves, the upper die cavity and the lower die cavity, and the lower bottom plate is provided with a driving assembly used for driving the first core-pulling sliding block and the second core-pulling sliding block to slide.

In one embodiment, the driving assembly comprises a guide plate coated in the lower die frame and driving rods fixedly connected to the first core-pulling slider and the second core-pulling slider respectively, a guide groove for the driving rods to pass through is formed in the guide plate, a square groove is formed in the lower base plate, a square block is longitudinally connected in the square groove in a sliding mode, a sliding rail is fixed on the square block, a slider is connected on the sliding rail in a sliding mode along the radial direction of the axis of the mandrel, a cylindrical groove is formed in the slider, a column head matched with the cylindrical groove is arranged on the driving rod, and the column head is rotatably connected in the cylindrical groove.

In one embodiment, arc grooves communicated with the square grooves are arranged at four corners of the square grooves.

In one embodiment, the first inclined sliding portion includes an inclined groove disposed on the mandrel and a first dovetail groove disposed at the bottom of the inclined groove, the first core pulling slider is provided with a first inclined surface adapted to the inclined groove, a first mating block adapted to the first dovetail groove is fixed on the first inclined surface, and the first mating block is slidably connected in the first dovetail groove.

In one embodiment, the second inclined sliding portion includes a second inclined surface disposed on the core shaft and a second mating block fixed on the second inclined surface, the second core pulling slider is provided with a second dovetail groove adapted to the second mating block, and the second core pulling slider is slidably connected to the second mating block through the second dovetail groove.

To sum up, the utility model discloses following beneficial effect has: during the drawing of patterns, drive assembly drives first slider of loosing core and the second slider of loosing core and slides on first slope sliding part and second slope sliding part, and when upwards sliding more, the diameter of the cylinder that first slider of loosing core and second loose core slider enclose will be less than the inner circle diameter of product, and because the inclination of first slope sliding part is greater than the inclination of second slope sliding part, first slider of loosing core can break away from the product earlier, the second is loosed core the slider and is break away from the product again after that, the drawing of patterns step by step of product has been realized, thereby be difficult to the damage product, the yields of product injection moulding production has been improved.

Drawings

Fig. 1 is a schematic structural view of an axial core-pulling and demolding type mold according to an embodiment of the present application;

fig. 2 is a sectional view of an axial core-pulling ejector-type mold according to an embodiment of the present application;

fig. 3 is a schematic structural view of an upper core and a lower core in the axial core-pulling and demolding type mold according to the embodiment of the present application;

fig. 4 is a schematic structural diagram of a driving assembly in the axial core-pulling and demolding type mold according to the embodiment of the present application;

fig. 5 is a schematic structural view of a mandrel in the axial core-pulling and demolding type mold according to the embodiment of the present application;

fig. 6 is a schematic structural diagram of a first core-pulling slider in the axial core-pulling and demolding type mold according to the embodiment of the present application;

fig. 7 is a schematic structural view of a second core-pulling slider in the axial core-pulling and demolding type mold according to the embodiment of the present application.

In the figure: 1. an upper base plate; 2. a lower base plate; 3. feeding a mold frame; 4. a lower die frame; 5. an upper mold core; 6. a lower mold core; 7. a mandrel; 8. pouring a hole groove; 9. a first core pulling slider; 91. a first inclined surface; 92. a first mating block; 10. a second core-pulling slider; 101. a second dovetail groove; 11. a first inclined sliding part; 111. an inclined groove; 112. a first dovetail groove; 12. a second inclined sliding part; 121. a second inclined surface; 122. a second mating block; 13. a drive assembly; 131. a guide plate; 132. a drive rod; 133. a slide rail; 134. a square block; 135. a slide block.

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.

As shown in fig. 1 to 4, an embodiment of the present application provides an axial core-pulling and demolding type mold, which includes an upper base plate 1 and a lower base plate 2, wherein an upper mold frame 3 and a lower mold frame 4 are respectively disposed at corresponding positions of the upper base plate 1 and the lower base plate 2. The upper die frame 3 and the lower die frame 4 are respectively provided with an upper die core 5 and a lower die core 6 in a covering mode at corresponding positions, the upper die core 5 and the lower die core 6 are respectively provided with an upper die cavity and a lower die cavity at corresponding positions, and the upper bottom plate 1 is provided with a pouring hole groove 8 communicated with the upper die cavity and the lower die cavity in a penetrating mode. Be located the lower die cavity on the lower mold core 6 and be fixed with dabber 7, the periphery wall of dabber 7 goes up the slope and is provided with a plurality of first slope sliding part 11 and second slope sliding part 12, the inclination of first slope sliding part 11 is greater than the inclination of second slope sliding part 12, first slope sliding part 11 and second slope sliding part 12 interval are encircleed and are arranged in the periphery of dabber 7. First slider 9 and the second slider 10 of loosing core are connected with respectively sliding on first inclined sliding portion 11 and the second inclined sliding portion 12, first slider 9 and the second of loosing core all are provided with the back-off groove on the slider 10 of loosing core, and is a plurality of first slider 9 and the second of loosing core is loosed core and is formed the die cavity that is used for the product shaping between surface, back-off groove, the last die cavity and the lower die cavity of slider 10. And a driving component 13 for driving the first core-pulling slide block 9 and the second core-pulling slide block 10 to slide is arranged on the lower bottom plate 2.

During the drawing of patterns, drive assembly 13 drives first slider 9 and the second slider 10 of loosing core and slides on first inclined sliding portion 11 and second inclined sliding portion 12, and when upwards sliding more, the diameter of the cylinder that first slider 9 and the second slider 10 of loosing core enclose will be less in the inner circle diameter of product, and because the inclination of first inclined sliding portion 11 is greater than the inclination of second inclined sliding portion 12, first slider 9 of loosing core can take off the product earlier, second slider 10 of loosing core breaks away from the product again after that, the drawing of patterns step by step of product has been realized, thereby be difficult to damage the product, the yields of product injection moulding production has been improved.

On the basis, as shown in fig. 4, the driving assembly 13 includes a guide plate 131 and a driving rod 132, wherein the guide plate 131 is coated and arranged in the lower mold frame 4, the driving rod 132 is fixedly connected to the first core-pulling slider 9 and the second core-pulling slider 10, a guide groove is formed in the guide plate 131 and used for the driving rod 132 to pass through, a square groove is formed in the lower bottom plate 2, a square block 134 is longitudinally slidably connected in the square groove, a sliding rail 133 is fixed on the square block 134, a slider 135 is slidably connected on the sliding rail 133 along the radial direction of the axis of the core shaft 7, a cylindrical groove is formed in the slider 135, a column head matched with the cylindrical groove is arranged on the driving rod 132, and the column head is rotatably connected in the cylindrical groove.

During operation, set up the slip of external power mechanism drive square 134 to drive actuating lever 132 and go up and down, the inclination just is big more when actuating lever 132 is more upwards, and the lower extreme of actuating lever 132 will take place relative rotation with slider 135 this moment, and slider 135 can outwards slide on slide rail 133 simultaneously, thereby makes the slip of first slider 9 of loosing core and second slider 10 of loosing core more smooth and easy stable.

On the basis, as shown in fig. 2, the arc grooves communicated with the square groove are arranged at four corners of the square groove, and the square 134 can slide more smoothly through the arrangement of the arc grooves.

In addition, as shown in fig. 5 and 6, the first inclined sliding portion 11 includes an inclined groove 111 provided in the core shaft 7 and a first dovetail groove 112 provided at a bottom of the inclined groove 111, the first core back slider 9 is provided with a first inclined surface 91 adapted to the inclined groove 111, a first mating block 92 adapted to the first dovetail groove 112 is fixed to the first inclined surface 91, and the first mating block 92 is slidably connected in the first dovetail groove 112.

In addition, as shown in fig. 5 and 7, the second inclined sliding portion 12 includes a second inclined surface 121 provided on the core shaft 7 and a second mating block 122 fixed on the second inclined surface 121, the second core back slider 10 is provided with a second dovetail groove 101 mated with the second mating block 122, and the second core back slider 10 is slidably connected to the second mating block 122 through the second dovetail groove 101.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the fan belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an axial drawing core drawing demoulding formula mould, includes upper plate (1) and lower plate (2), upper plate (1) and lower plate (2) correspond the position and are provided with die carrier (3) and lower die carrier (4) respectively, upper die carrier (3) correspond the position respectively with lower die carrier (4) the cladding be provided with mold core (5) and lower mold core (6), upper die core (5) correspond the position with lower mold core (6) and are provided with die cavity and lower die cavity respectively, run through on upper plate (1) be provided with the last die cavity with lower die cavity intercommunication pour hole groove (8), its characterized in that: a mandrel (7) is fixed in the lower die cavity on the lower die core (6), a plurality of first inclined sliding portions (11) and second inclined sliding portions (12) are obliquely arranged on the peripheral wall of the mandrel (7), the inclination angle of each first inclined sliding portion (11) is larger than that of each second inclined sliding portion (12), the first inclined sliding portions (11) and the second inclined sliding portions (12) are arranged on the periphery of the mandrel (7) in a surrounding mode at intervals, a first core-pulling sliding block (9) and a second core-pulling sliding block (10) are respectively connected to the first inclined sliding portions (11) and the second inclined sliding portions (12) in a sliding mode, inverted buckle grooves are formed in the first core-pulling sliding block (9) and the second core-pulling sliding block (10), and cavities for product forming are formed between the surfaces of the first core-pulling sliding block (9) and the second core-pulling sliding block (10), the inverted buckle grooves, the upper die cavity and the lower die cavity, and the lower bottom plate (2) is provided with a driving component (13) for driving the first core-pulling slide block (9) and the second core-pulling slide block (10) to slide.

2. The axial core-pulling demolding type mold according to claim 1, wherein: drive assembly (13) are including guide plate (131) and drive lever (132) of fixed connection on first slider (9) of loosing core and second slider (10) of loosing core that the cladding set up in die carrier (4) down, be provided with the guide way that supplies drive lever (132) to pass through on guide plate (131), be provided with the square groove on lower plate (2), square inslot longitudinal sliding connection has square (134), be fixed with slide rail (133) on square (134), the radial sliding connection along dabber (7) place axis has slider (135) on slide rail (133), be provided with the cylindrical groove on slider (135), be provided with the column cap with cylindrical groove adaptation on drive lever (132), the column cap rotates and connects in the cylindrical groove.

3. The axial core-pulling demolding type mold according to claim 2, wherein: and arc grooves communicated with the square grooves are formed at four corners of the square grooves.

4. The axial core-pulling demolding type mold according to claim 1, wherein: the first inclined sliding part (11) comprises an inclined groove (111) formed in the mandrel (7) and a first dovetail groove (112) formed in the bottom of the inclined groove (111), a first inclined surface (91) matched with the inclined groove (111) is arranged on the first core pulling sliding block (9), a first matching block (92) matched with the first dovetail groove (112) is fixed on the first inclined surface (91), and the first matching block (92) is connected into the first dovetail groove (112) in a sliding mode.

5. The axial core-pulling demolding type mold according to claim 2, wherein: the second inclined sliding part (12) comprises a second inclined surface (121) arranged on the mandrel (7) and a second matching block (122) fixed on the second inclined surface (121), a second dovetail groove (101) matched with the second matching block (122) is formed in the second core-pulling sliding block (10), and the second core-pulling sliding block (10) is connected to the second matching block (122) in a sliding mode through the second dovetail groove (101).