CN219405312U

CN219405312U - Forming die of pull rod handle

Info

Publication number: CN219405312U
Application number: CN202320559962.5U
Authority: CN
Inventors: 李慧慧
Original assignee: Hanli New Material Technology Co ltd
Current assignee: Hanli New Material Technology Co ltd
Priority date: 2023-03-20
Filing date: 2023-03-20
Publication date: 2023-07-25
Anticipated expiration: 2033-03-20

Abstract

The application relates to a forming die of pull rod handle, it includes the mould body, is provided with heating device on the mould body, and heating device includes coupling mechanism and installs the zone of heating on the mould body, and coupling mechanism installs on the zone of heating, and coupling mechanism is connected with the hot water supply. The utility model has the advantages of can slow down the rate of the temperature decline of plastics, make the plastics of melting be full of whole die cavity, can reduce the crack or the bubble that exist on the handle to improve the effect of handle production qualification rate.

Description

Forming die of pull rod handle

Technical Field

The application relates to the technical field of mold processing equipment, in particular to a forming mold of a pull rod handle.

Background

At present, a mold is a tool for manufacturing molded articles by injection molding, blow molding, extrusion, die casting and other methods in industrial production, and the processing of the appearance of the articles is realized mainly by changing the physical state of molding materials.

In the related art, a handle of a pull rod on a suitcase is produced and manufactured by adopting an injection mold, a mold cavity for forming the handle is arranged in the mold, molten plastic is extruded into the mold cavity in the mold in the process of injection molding production of the handle, and the temperature of the plastic which firstly enters the mold cavity is reduced and solidified because the mold has no heating function, so that cracks or bubbles exist in the handle, the quality of the handle is unqualified, and the qualification rate of the handle production is reduced.

Disclosure of Invention

In order to improve the qualification rate of handle production, the application provides a forming die of pull rod handle.

The application provides a forming die of pull rod handle adopts following technical scheme:

the utility model provides a forming die of pull rod handle, includes the mould body, be provided with heating device on the mould body, heating device includes coupling mechanism and installs the zone of heating on the mould body, coupling mechanism installs on the zone of heating, coupling mechanism is connected with the hot water supply.

Through adopting above-mentioned technical scheme, before injecting the plastics of melting into the mould body, hot water in the hot-water tank lets in the heating layer through connection structure, hot water carries out heat exchange and heats the mould body with the mould body in the heating layer, in the mould body temperature risees the back with plastics injection die cavity of melting, the mould body can keep warm the plastics in the die cavity, can slow down the rate that the temperature of plastics falls, makes the plastics of melting be full of whole die cavity, can reduce the crack or the bubble that exist on the handle to the qualification rate of handle production has been improved.

Preferably, the die cavity is arranged on the heating layer, and a water inlet flow channel which takes a shape of a snake and surrounds the die cavity is arranged in the heating layer; the connecting mechanism is communicated with the water inlet flow passage.

Through adopting above-mentioned technical scheme, in hot water passes through coupling mechanism entering water inlet channel, the snakelike water inlet channel who encircles the die cavity can increase the heat exchange area of hot water and zone of heating, can improve the heat utilization ratio of hot water, can reduce the zone of heating and intensify required time to the improvement production rate of handle.

Preferably, the heating layer comprises a shell and an inner core, the shell is mounted on the die body, a fixing piece is arranged on the shell, a mounting groove matched with the inner core in a plugging manner is formed in the side wall of the shell, the inner core is mounted in the mounting groove in a plugging manner and connected with the fixing piece, and the inner core is connected with the die cavity; the groove side wall of the mounting groove is provided with a first semicircular groove, the circumferential side wall of the inner core is provided with a second semicircular groove, and the first semicircular groove and the second semicircular groove are spliced into the water inlet flow passage.

Through adopting above-mentioned technical scheme, shell and inner core pass through mounting installation and connect, make and dismantle between shell and the inner core and connect, after the long-time use of zone of heating, can separate shell and inner core and wash the groove lateral wall of first semicircle groove and second semicircle groove to can reduce the accumulational impurity on the runner lateral wall of intaking.

Preferably, the fixing member includes a plurality of connection bolts penetrating through the inner core and screw-mounted on the outer shell.

Through adopting above-mentioned technical scheme, through connecting bolt's connection, make detachable connection between shell and the inner core to can be convenient clear up the groove lateral wall of first semicircle groove and second semicircle groove.

Preferably, a sealing layer is arranged on the die body, and the sealing layer is tightly pressed at the joint of the outer shell and the inner core.

Through adopting above-mentioned technical scheme, when connecting bolt with shell and inner core fixed connection, the sealing layer compresses tightly the junction at shell and inner core to reduce the clearance between shell and the inner core, reduce the probability that the hot water in the intake runner flows out from the clearance between shell and the inner core.

Preferably, the connecting mechanism comprises a conversion assembly and a connector, wherein the connector is installed on the shell in a threaded manner and communicated with the water inlet of the water inlet flow channel, and the conversion assembly is installed on the connector.

Through adopting above-mentioned technical scheme, connector and shell detachable install together, and conversion component passes through the connector and installs on the shell, makes conversion component detachable install on the shell to the maintenance and the change of conversion component and connector have been made things convenient for.

Preferably, a rubber gasket is sleeved on the connector, and the connector compresses the rubber gasket on the shell.

Through adopting above-mentioned technical scheme, the connector compresses tightly the rubber packing ring on the shell, has reduced the clearance between connector and the shell to the probability that hot water flows from the junction of connector and shell has been reduced.

Preferably, the conversion assembly comprises an electromagnetic valve, a first connecting pipe, a second connecting pipe and a third connecting pipe, wherein the electromagnetic valve is installed on the connecting head, the first connecting pipe, the second connecting pipe and the third connecting pipe are all installed on the electromagnetic valve, the first connecting pipe is connected with a hot water source, the second connecting pipe is connected with a cold water source, and the third connecting pipe is connected with an air source.

By adopting the technical scheme, before plastic is injected into the die cavity, the injection molding machine sends a signal to the electromagnetic valve, the electromagnetic valve enables the first connecting pipe to be communicated with the connector, hot water in the hot water source enters the first semicircular groove and the second semicircular groove, and therefore the die cavity can be preheated; after the plastic injection is completed, the injection molding machine sends a signal to the electromagnetic valve, the electromagnetic valve enables the third connecting pipe to be communicated with the connector, hot water in the first semicircular groove and the second semicircular groove is pushed out of the die body by gas and cools the groove side walls of the first semicircular groove and the second semicircular groove through gas flow, then the electromagnetic valve enables the second connecting pipe to be communicated with the connector, cold water in a cold water source enters the first semicircular groove and the second semicircular groove and cools the groove side walls rapidly, and therefore time required by solidification of a handle is shortened.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through heating device's setting, can slow down the speed that the temperature of plastics falls, make the plastics of melting be full of whole die cavity, can reduce the crack or the bubble that exist on the handle to the qualification rate of handle production has been improved.

2. Through the setting of shell and inner core, can reduce the accumulational impurity on the inlet channel lateral wall to hot water thermal availability has been improved.

3. Through the setting of mounting, make detachable connection between shell and the inner core to can be convenient clear up the groove lateral wall in first semicircle groove and second semicircle groove.

4. By the arrangement of the sealing layer, the solidification reduces the gap between the outer shell and the inner core, so that the probability of hot water in the water inlet flow channel flowing out of the gap between the outer shell and the inner core is reduced.

Drawings

FIG. 1 is a schematic perspective view of a forming die of a tie bar handle according to an embodiment of the present application;

fig. 2 is an exploded schematic view of a molding die of a tie rod handle according to an embodiment of the present application.

Reference numerals: 100. a die body; 101. a movable mold; 102. a fixed mold; 200. a heating device; 300. a connecting mechanism; 310. a conversion assembly; 311. an electromagnetic valve; 312. a first connection pipe; 313. a second connection pipe; 314. a third connection pipe; 320. a connector; 321. a rubber gasket; 322. a communicating pipe; 400. a heating layer; 410. a housing; 411. a mounting groove; 412. a first semicircular groove; 420. an inner core; 421. a support plate; 422. a heating block; 423. a sealing layer; 424. a second semicircular groove; 430. a water inlet flow passage; 441. a water inlet; 443. an internal thread; 451. a mounting hole; 452. a connecting bolt; 500. and a mold cavity.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-2.

Referring to fig. 1, a molding die for a pull rod handle includes a die body 100, the die body 100 includes a movable die 101 and a fixed die 102, a heating device 200 is disposed on the movable die 101, and the heating device 200 includes a connection mechanism 300 and a heating layer 400.

Referring to fig. 1 and 2, the heating layer 400 includes a rectangular outer case 410 and an inner core 420, the outer case 410 is fixedly installed on the movable mold 101 and located between the movable mold 101 and the fixed mold 102, and a rectangular installation slot 411 is opened on a sidewall of the outer case 410 facing the fixed mold 102.

The inner core 420 comprises a supporting plate 421 and a heating block 422 in plug-in fit with the mounting slot 411, the heating block 422 is plug-in mounted in the mounting slot 411, and the supporting plate 421 is integrally arranged on the side wall of the heating block 422 away from the slot bottom of the mounting slot 411 and is abutted with the side wall of the shell 410; the support plate 421 is fixedly provided with a sealing layer 423 made of rubber on a side wall facing the case 410, and the support plate 421 presses the sealing layer 423 against the side wall of the case 410.

Referring to fig. 1 and 2, the four slot side walls of the installation slot 411 are provided with first semicircular slots 412 which are mutually communicated, the first semicircular slots 412 are distributed on the four slot side walls of the installation slot 411 in a serpentine shape, the four side walls of the heating block 422 are provided with second semicircular slots 424 which are mutually communicated, the second semicircular slots 424 are distributed on the four side walls of the heating block 422 in a serpentine shape, and when the heating block 422 is inserted and installed in the installation slot 411, the first semicircular slots 412 and the second semicircular slots 424 are spliced into the water inlet flow channel 430.

The side wall of the casing 410 is provided with a water inlet 441 and a water outlet, and the water inlet 441 and the water outlet are communicated with the water inlet flow channel 430 and are respectively positioned at two ends of the water inlet flow channel 430.

Referring to fig. 1 and 2, four mounting holes 451 are formed in the support plate 421, the four mounting holes 451 are equally divided into two groups, the two groups of mounting holes 451 are respectively located at two ends of the support plate 421, and the two mounting holes 451 of the same group are respectively located at two sides of the support plate 421; the supporting plate 421 is provided with a fixing member including four connection bolts 452, and the four connection bolts 452 respectively pass through the four mounting holes 451 and are screw-mounted on a side wall of the case 410 facing the supporting plate 421.

The side wall of the heating block 422 facing away from the bottom of the mounting slot 411 is provided with a mold cavity 500 penetrating through the supporting plate 421, and the water inlet runner 430 surrounds the mold cavity 500.

Referring to fig. 1 and 2, the connection mechanism 300 includes two conversion assemblies 310 and two connectors 320, each of which is fixedly provided with an internal thread 443 on an inner wall of the water inlet 441 and the water outlet, and each of the connectors 320 is screw-mounted on the housing 410 and communicates with the water inlet 441 and the water outlet, respectively. The rubber gasket 321 is fixedly arranged on the connector 320, and when the connector 320 is mounted on the housing 410 in a threaded manner, the connector 320 presses the rubber gasket 321 against the side wall of the housing 410.

The two conversion components 310 are respectively located on the two connectors 320, the conversion components 310 comprise a four-way electromagnetic valve 311, a first connecting pipe 312, a second connecting pipe 313 and a third connecting pipe 314, a communicating pipe 322 is arranged on the connectors 320, one end of the communicating pipe 322 is fixedly connected with one end of the connector 320 away from the shell 410, one interface of the electromagnetic valve 311 is fixedly connected with one end of the communicating pipe 322 away from the connector 320, one ends of the first connecting pipe 312, the second connecting pipe 313 and the third connecting pipe 314 are respectively fixedly connected with the other three interfaces of the electromagnetic valve 311, one end of the first connecting pipe 312 away from the electromagnetic valve 311 is fixedly connected with a hot water tank, one end of the second connecting pipe 313 away from the electromagnetic valve 311 is fixedly connected with a cold water tank, and one end of the third connecting pipe 314 away from the electromagnetic valve 311 is fixedly connected with an air pump.

The implementation principle of the forming die of the pull rod handle of the embodiment of the application is as follows:

before the injection molding machine injects molten plastic into the mold cavity 500, the injection molding machine sends a signal to the electromagnetic valve 311, the electromagnetic valve 311 enables the first connecting pipe 312 to be communicated with the connector 320, and hot water in the hot water tank enters the water inlet flow passage 430, so that the mold cavity 500 can be preheated and heated; after the injection of the plastic is completed, the injection molding machine sends a signal to the electromagnetic valve 311, the electromagnetic valve 311 enables the third connecting pipe 314 to be communicated with the connector 320, and the hot water in the water inlet flow channel 430 is pushed out of the mold body 100 by gas generated by the air pump, so that the side wall of the water inlet flow channel 430 can be cooled by air flow passing through the water inlet flow channel 430; the injection molding machine further enables the electromagnetic valve 311 to communicate the second connecting pipe 313 with the connector 320, so that cold water in the cold water tank enters the water inlet flow passage 430 and the side wall of the water inlet flow passage 430 is rapidly cooled.

After a long time use, the connection bolt 452 is separated from the case 410 and removed from the support plate 421, so that the support plate 421 and the heating block 422 can be detached from the case 410, and the groove sidewalls of the first and second semicircular grooves 412 and 424 can be cleaned, so that impurities on the groove sidewalls of the first and second semicircular grooves 412 and 424 can be reduced.

The embodiments of the present utility model are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in this way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a forming die of pull rod handle, includes mould body (100), its characterized in that: the die comprises a die body (100), and is characterized in that a heating device (200) is arranged on the die body (100), the heating device (200) comprises a connecting mechanism (300) and a heating layer (400) arranged on the die body (100), the connecting mechanism (300) is arranged on the heating layer (400), and the connecting mechanism (300) is connected with a hot water source.

2. The molding die of a pull rod handle according to claim 1, wherein: the mold cavity (500) is arranged on the heating layer (400), and a water inlet runner (430) which takes a shape of a snake and surrounds the mold cavity (500) is arranged in the heating layer (400); the connecting mechanism (300) is communicated with the water inlet flow passage (430).

3. A die for forming a pull rod handle according to claim 2, wherein: the heating layer (400) comprises a shell (410) and an inner core (420), wherein the shell (410) is installed on the die body (100), a fixing piece is arranged on the shell (410), an installation groove (411) which is in plug-in fit with the inner core (420) is formed in the side wall of the shell (410), the inner core (420) is installed in the installation groove (411) in a plug-in mode and is connected with the fixing piece, and the inner core (420) is connected with the die cavity (500); a first semicircular groove (412) is formed in the groove side wall of the mounting groove (411), a second semicircular groove (424) is formed in the circumferential side wall of the inner core (420), and the first semicircular groove (412) and the second semicircular groove (424) are spliced to form the water inlet flow channel (430).

4. A die for forming a pull rod handle according to claim 3, wherein: the fastener includes a plurality of connecting bolts (452), the connecting bolts (452) passing through the inner core (420) and threadably mounted on the outer shell (410).

5. A die for forming a pull rod handle according to claim 3, wherein: a sealing layer (423) is arranged on the die body (100), and the sealing layer (423) is tightly pressed at the joint of the outer shell (410) and the inner core (420).

6. A die for forming a pull rod handle according to claim 3, wherein: the connecting mechanism (300) comprises a conversion assembly (310) and a connector (320), wherein the connector (320) is installed on the shell (410) in a threaded mode and is communicated with a water inlet (441) of the water inlet flow channel (430), and the conversion assembly (310) is installed on the connector (320).

7. The die set for a tie bar handle as claimed in claim 6, wherein: the connector (320) is sleeved with a rubber gasket (321), and the connector (320) compresses the rubber gasket (321) on the shell (410).

8. The die set for a tie bar handle as claimed in claim 6, wherein: the conversion assembly (310) comprises an electromagnetic valve (311), a first connecting pipe (312), a second connecting pipe (313) and a third connecting pipe (314), wherein the electromagnetic valve (311) is installed on the connector (320), the first connecting pipe (312), the second connecting pipe (313) and the third connecting pipe (314) are all installed on the electromagnetic valve (311), the first connecting pipe (312) is connected with a hot water source, the second connecting pipe (313) is connected with a cold water source, and the third connecting pipe (314) is connected with an air source.