CN211054275U

CN211054275U - Saddle blotter forming die

Info

Publication number: CN211054275U
Application number: CN201921148939.7U
Authority: CN
Inventors: 陈强
Original assignee: Hongrui Tiancheng Technology Tianjin Co ltd
Current assignee: Hongrui Tiancheng Technology Tianjin Co ltd
Priority date: 2019-07-18
Filing date: 2019-07-18
Publication date: 2020-07-21
Anticipated expiration: 2029-07-18

Abstract

The utility model relates to a saddle blotter forming die, including back mould subassembly, front formwork, back mould subassembly includes the back template, set up the back mould support at back template rear portion, form the vacuum cavity between back mould support and the back template, be equipped with the first aspirating hole with vacuum cavity intercommunication on the back mould support, be equipped with a plurality of second aspirating holes with vacuum cavity intercommunication on the back template, the front formwork sets up the place ahead at the back template, the center department of front formwork is equipped with the heat flow channel who link up, be equipped with the clamp plate between front formwork and the back template, the clamp plate is connected with the output of cylinder, the cylinder is installed at the upper and lower both ends at back mould subassembly, the center department of clamp plate is equipped with the extrusion hole that link up, when front formwork and back mould subassembly are buckled, the front formwork passes extrusion hole and back template lock and form the shaping die cavity, heat flow channel and the die cavity intercommunication of moulding plastics. The utility model provides high production efficiency, reduction cost of manufacture, area occupied are little.

Description

Saddle blotter forming die

Technical Field

The utility model relates to a saddle blotter preparation technical field especially relates to a saddle blotter forming die.

Background

Saddle blotter is generally installed on bicycle, motorcycle and electric motor car, and saddle blotter structure generally comprises saddle skin, cushion, and saddle blotter's manufacturing method is firstly through saddle blotter mould beat polyurethane foaming and form polyurethane foaming pad for subsequent use, then adopts glue to glue polyurethane foaming pad and saddle skin bonding respectively. The production method increases the workload of the saddle cushion pad, has low production efficiency and improves the manufacturing cost. Therefore, it is an urgent need to solve the problem of designing a mold capable of integrally molding the saddle leather and the rubber mat.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a saddle blotter forming die that improves production efficiency, reduces the cost of manufacture, makes saddle skin and cushion can integrated into one piece.

The utility model relates to a saddle blotter forming die, including back mould subassembly, front forms, back mould subassembly includes the back form, sets up the back mould support at back form rear portion, form the vacuum cavity between back mould support and the back form, be equipped with the first aspirating hole with the vacuum cavity intercommunication on the back mould support, first aspirating hole is connected with evacuating device, be equipped with a plurality of second aspirating holes with the vacuum cavity intercommunication on the back form, the front forms sets up the place ahead at the back form, the center department of front forms is equipped with the hot stream channel that link up, be equipped with the clamp plate between front forms and the back form, the clamp plate is connected with the output of cylinder, the cylinder is installed the upper and lower both ends of back mould subassembly, the center department of clamp plate is equipped with the extrusion hole that link up.

Preferably, a concave part is arranged at the center of the front end of the rear template, a convex part with the same shape as the concave part is arranged at the rear end of the front template, the shapes of the concave part and the convex part are the shape of the saddle cushion required to be formed, and the area size of the convex part is smaller than that of the concave part.

In any of the above schemes, preferably, the heat flow channel includes a first branch channel, a second branch channel, and an injection molding opening, the first branch channel and the second branch channel are symmetrically disposed and respectively communicated with the injection molding opening, the first branch channel and the second branch channel are disposed at the rear end of the front mold plate, and the injection molding opening is disposed at the front end of the front mold plate.

In any of the above schemes, preferably, the front mold plate includes a mold plate body and a pressing protrusion, the protrusion is disposed at the rear end of the mold plate body, the heat flow channel is disposed on the mold plate body, and the pressing protrusions are disposed at the upper and lower ends of the mold plate body, respectively.

In any of the above embodiments, preferably, the sectional length of the rear die plate, the sectional length of the extrusion hole, and the sectional length of the die plate body are sequentially decreased.

In any of the above schemes, preferably, the upper and lower sides of the front end of the rear template are provided with positioning pieces.

In any of the above embodiments, preferably, the vacuum pumping device is a vacuum pump.

In any of the above schemes, preferably, the rear mold plate is detachably and fixedly connected with the rear mold support.

Compared with the prior art, the utility model has the advantages and beneficial effects do: through tiling the saddle skin on the back template die cavity, take out the air in the vacuum cavity under evacuating device's effect, make the saddle skin adsorb on the back template die cavity, the front mould passes the extrusion hole on the clamp plate and forms the shaping die cavity with back template lock, the injection molding machine is penetrated the mouth and is passed through hot runner system through the hot flow channel and to the feed liquid of moulding plastics in the shaping die cavity, the feed liquid is at the internal cooling shaping of die cavity, thereby realize the integrated into one piece of saddle skin and cushion, need not to carry out the secondary bonding, fashioned saddle blotter structural stability is strong, and the preparation shaping is simple, the shaping is efficient, the cost of preparation forming die is low, and the production cost is reduced, the production efficiency of saddle blotter is improved.

The saddle cushion forming die of the present invention will be further described with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic structural view of a saddle cushion forming mold of the present invention;

FIG. 2 is a schematic structural view of a saddle leather compressed in a rear mold plate cavity in the saddle cushion forming mold of the present invention;

FIG. 3 is a schematic view of the structure of the saddle cushion forming mold of the present invention in which the front mold plate and the rear mold assembly are fastened together;

FIG. 4 is a schematic structural view of saddle cushion forming in the saddle cushion forming mold of the present invention;

wherein: 1. a rear mold support; 2. a vacuum chamber; 3. a first air extraction hole; 4. a cylinder; 5. a rear template; 51. a second air extraction hole; 52. a recess; 6. pressing a plate; 61. extruding the hole; 7. a front template; 71. a template body; 72. compressing the bump; 73. a first branch channel; 74. a second branch channel; 75. an injection molding port; 76. a constant temperature system; 8. saddle skin; 9. a hot runner system.

Detailed Description

As shown in figure 1, the utility model relates to a saddle cushion forming die, which comprises a rear die assembly and a front die plate 7, wherein the rear die assembly comprises a rear die plate 5 and a rear die support 1 arranged at the rear part of the rear die plate 5, a vacuum cavity 2 is formed between the rear die support 1 and the rear die plate 5, a first air suction hole 3 communicated with the vacuum cavity 2 is arranged on the rear die support 1, the first air suction hole 3 is connected with a vacuum pumping device, a plurality of second air suction holes 51 communicated with the vacuum cavity 2 are arranged on the rear die plate 5, the front die plate 7 is arranged in front of the rear die plate 5, a through heat flow passage is arranged at the center of the front die plate 7, the heat flow passage is communicated with an ejection outlet of a heat flow passage system 9, a pressing plate 6 is arranged between the front die plate 7 and the rear die plate 5, the pressing plate 6 is connected with the output end of an air cylinder 4, the air cylinder 4 is arranged at the upper and lower, when the front template 7 is buckled with the rear template assembly, the front template 7 penetrates through the extrusion hole 61 to be buckled with the rear template 5 to form a molding cavity, and the hot flow channel is communicated with the injection molding cavity.

As shown in fig. 1 to 4, the saddle cushion is formed by the following process: firstly, a pressing plate 6 is separated from a rear template 5 through an air cylinder 4, and a saddle leather 8 is flatly laid on a cavity of the rear template 5; secondly, the pressing plate 6 presses the saddle leather 8 on the cavity of the rear template 5 through the air cylinder 4, and air in the vacuum cavity 2 is pumped out through a vacuumizing device, so that a vacuum state is formed between the saddle leather 8 and the cavity of the rear template 5, and the saddle leather 8 is adsorbed on the cavity of the rear template 5 by utilizing atmospheric pressure; thirdly, the front template 7 passes through the extrusion hole 61 on the pressing plate 6 and forms a molding cavity with the lock of the rear template 5, the injection nozzle of the injection molding machine passes through the hot runner system 9 and injects the feed liquid into the molding cavity through the hot runner channel, the feed liquid is cooled and molded in the cavity, thereby realizing the one-step molding of the saddle leather 8 and the rubber mat, no secondary bonding is needed, the structural stability of the molded saddle cushion pad is strong, and the manufacture molding is simple, the molding efficiency is high, the cost of the manufacture molding die is low, the production cost is reduced, and the production efficiency of the saddle cushion pad is improved. Wherein, when vacuumizing, the vacuumizing pressure is ensured to be at a standard atmospheric pressure. The front template 7 is arranged on a front mould mounting plate of the injection molding machine, and the rear mould support 1 is arranged on a rear mould mounting plate of the injection molding machine. After the injection molding of the saddle cushion pad, the front template 7 is separated from the rear template assembly, the pressing plate 6 is separated from the rear template 5 through the cylinder 4, and the formed saddle cushion pad can be taken out manually.

And constant temperature systems 76 are arranged on two sides of the heat flow channel, and the constant temperature systems 76 are used for controlling the forming temperature of the forming cavity and ensuring the forming quality of the saddle cushion pad. The hot runner system 9 ensures that the material liquid in the hot runner channel is in a molten state, no material return occurs in the rubber mat forming process, and the loss of forming materials is reduced, so that the production cost is reduced. In the embodiment, the hot runner system 9 and the constant temperature system 76 are selected from conventional structures in the injection molding field, and the internal structure and the working principle thereof are all the prior art disclosed in the field.

Further, the heat flow channel includes a first branch channel 73, a second branch channel 74 and an injection port 75, the first branch channel 73 and the second branch channel 74 are symmetrically arranged and respectively communicated with the injection port 75, the first branch channel 73 and the second branch channel 74 are arranged at the rear end of the front mold plate 7, and the injection port 75 is arranged at the front end of the front mold plate 7.

Furthermore, positioning parts are arranged on the upper side and the lower side of the front end of the rear template 5. In this embodiment, the positioning member is a pin. When the saddle 8 is flatly laid on the cavity of the rear template 5, the saddle 8 is provided with a positioning hole matched with the pin, so that the saddle 8 is positioned.

Furthermore, a concave part 52 is arranged at the center of the front end of the rear template 5, a convex part with the same shape as the concave part 52 is arranged at the rear end of the front template 7, the shapes of the concave part 52 and the convex part are the shape of the saddle cushion required to be formed, and the area size of the convex part is smaller than that of the concave part 52. When the rear mold plate 5 is engaged with the front mold plate 7, a molding cavity is formed between the concave portion 52 and the convex portion.

Further, the front mold plate 7 includes a mold plate body 71 and pressing protrusions 72 which are integrally formed, the protruding portion is disposed at the rear end of the mold plate body 71, the hot runner system 9 is disposed on the mold plate body 71, and the pressing protrusions 72 are respectively disposed at the upper end and the lower end of the mold plate body 71. The sectional length of the rear die plate 5, the sectional length of the extrusion hole 61, and the sectional length of the die plate body 71 are sequentially decreased. When the front template 7 is buckled with the rear template 5, the pressing convex block 72 can be attached to the pressing plate 6 and tightly press and fix the pressing plate 6, so that the sealing performance of the molding cavity is ensured, and the molding material is prevented from leaking.

Further, the vacuum pumping device is a vacuum pump.

Furthermore, the rear template 5 is detachably and fixedly connected with the rear template support 1.

In this embodiment, the front mold plate 7 and the rear mold assembly are made of a mold steel material.

The above-mentioned embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.

Claims

1. The utility model provides a saddle blotter forming die which characterized in that: the rear die assembly comprises a rear die plate and a front die plate, the rear die assembly comprises a rear die plate and a rear die support arranged at the rear part of the rear die plate, a vacuum cavity is formed between the rear die support and the rear die plate, a first air exhaust hole communicated with the vacuum cavity is formed in the rear die support, the first air exhaust hole is connected with a vacuumizing device, a plurality of second air exhaust holes communicated with the vacuum cavity are formed in the rear die plate, the front die plate is arranged in front of the rear die plate, a through hot flow channel is formed in the center of the front die plate, a pressing plate is arranged between the front die plate and the rear die plate and connected with the output end of an air cylinder, the air cylinder is arranged at the upper end and the lower end of the rear die assembly, and a through extrusion hole is formed in the center of.

2. Saddle cushion forming die according to claim 1, characterized in that: the front end of the rear template is provided with a concave part, the rear end of the front template is provided with a convex part with the same shape as the concave part, the shapes of the concave part and the convex part are the shape of the saddle cushion to be formed, and the area of the convex part is smaller than that of the concave part.

3. Saddle cushion forming die according to claim 1, characterized in that: the hot flow channel comprises a first branch channel, a second branch channel and an injection molding opening, the first branch channel and the second branch channel are symmetrically arranged and are respectively communicated with the injection molding opening, the first branch channel and the second branch channel are arranged at the rear end of the front template, and the injection molding opening is arranged at the front end of the front template.

4. Saddle cushion forming die according to claim 1, characterized in that: the front template comprises an integrally formed template body and compression convex blocks, the convex parts are arranged at the rear end of the template body, the heat flow channels are arranged on the template body, and the compression convex blocks are respectively arranged at the upper end and the lower end of the template body.

5. Saddle cushion forming die according to claim 4, characterized in that: the section length of the rear template, the section length of the extrusion hole and the section length of the template body are sequentially decreased progressively.

6. Saddle cushion forming die according to claim 1, characterized in that: and positioning pieces are arranged on the upper side and the lower side of the front end of the rear template.

7. Saddle cushion forming die according to claim 1, characterized in that: the vacuum pumping device is a vacuum pump.

8. Saddle cushion forming die according to claim 1, characterized in that: the rear template is detachably and fixedly connected with the rear template support.