CN220763348U

CN220763348U - Glove injection molding machine with turntable

Info

Publication number: CN220763348U
Application number: CN202322222938.5U
Authority: CN
Inventors: 何昌诚
Original assignee: Dongguan Jintong Plastic Machinery Co ltd
Current assignee: Dongguan Jintong Plastic Machinery Co ltd
Priority date: 2023-08-17
Filing date: 2023-08-17
Publication date: 2024-04-12
Anticipated expiration: 2033-08-17

Abstract

The utility model relates to a glove injection molding machine with a turntable, which comprises a frame, a turntable arranged on the frame and rotating, a mold and a thimble assembly, wherein the mold comprises an upper mold, a plurality of hand molds and a plurality of lower molds, the upper mold is arranged on the frame through a lifting assembly for lifting movement, the lower molds are uniformly distributed on the turntable in a circumference manner, each lower mold is provided with at least one hand mold, the upper mold is provided with an upper female mold, the lower mold is provided with a lower female mold, and the hand molds are matched with the upper female mold and the lower female mold to form a mold cavity when the molds are buckled; the lower die comprises a push rod and a top plate, the upper end of the push rod is connected with the hand die, the lower end of the push rod is connected with the top plate, and when the die is opened, the push rod moves upwards to drive the hand die to lift away from the lower die; the ejector pin assembly comprises an ejector pin, and the ejector pin can move upwards to abut against the top plate and drive the ejector pin to move upwards.

Description

Glove injection molding machine with turntable

Technical Field

The application belongs to the technical field of injection molding equipment, and relates to a glove injection molding machine with a rotary table.

Background

In the related art, for example, a plastic glove for work protection is generally made by wrapping a plastic layer on a knitted glove made of knitting yarns, the plastic layer is mainly located at the palm and the finger belly of the knitted glove, a common manufacturing method mainly comprises a gum dipping process and an injection molding process, the gum dipping process is serious in pollution and health-damaging, and the injection molding process is a very mature technology and is widely applied to various industries and the like.

As disclosed in the patent application of CN110116475a, a dual-color automatic glove molding machine is disclosed, a hand mold for sleeving a knitted glove is arranged on an indexing turntable to rotate, and the hand mold, an upper mold and a lower mold are separated to move, and then are buckled during injection molding, so that the hand mold in the mode has low positioning precision with the upper mold and the lower mold, and the hand mold, the upper mold and the lower mold are easy to collide during buckling, so that the knitted glove on the hand mold is damaged and scrapped, and the injection molding yield is low.

Disclosure of Invention

In order to overcome the problems in the related art, the application aims to provide a glove injection molding machine with a turntable, so that the production efficiency is ensured, and meanwhile, the injection molding yield is improved.

The application is realized by the following technical scheme.

The technical scheme of the application is that the glove injection molding machine with the turntable comprises a rack, a turntable arranged on the rack and rotating, a mold and a thimble assembly, wherein the turntable automatically rotates around a central axis in the vertical direction, and a plurality of thimble through holes penetrating through the upper surface and the lower surface are formed in the turntable;

the die comprises an upper die, a plurality of hand dies and a plurality of lower dies, wherein the upper die is arranged on the frame through a lifting assembly for lifting movement, the lower dies are circumferentially and uniformly arranged on the rotary table, each lower die is provided with at least one hand die, the upper die is provided with an upper female die, the lower die is provided with a lower female die, and the hand dies, the upper female die and the lower female die are matched to form a die cavity when the dies are buckled;

the lower die comprises a push rod and a top plate, the upper end of the push rod is connected with the hand die, the lower end of the push rod is connected with the top plate, and when the die is opened, the push rod moves upwards to drive the hand die to lift away from the lower die;

the ejector pin assembly comprises an ejector pin, and the ejector pin can move upwards to penetrate through the ejector pin through hole to abut against the top plate and drive the ejector pin to move upwards.

The technical effect of the technical scheme is that the mould is provided, the hand mould is connected to the ejector rod of the lower mould, the ejector rod only moves in one lifting direction, the movement of the ejector rod is stable, the positioning precision and the movement stability of the hand mould are also improved, and the hand mould, the lower mould and the upper mould are prevented from collision to damage the knitted glove; when the mould is opened, the ejector rod drives the hand mould to lift up to leave the lower mould, so that enough space is reserved for taking down the knitted glove after injection molding and sleeving the knitted glove to be injection molded; the injection molding machine adopts the lower die and the hand die of the rotary table driving die to rotate, and the upper die is fixed in position and moves up and down to be buckled with the lower die, so that the die assembly positioning precision of the die is ensured, the production efficiency is ensured, and meanwhile, the yield of injection molding is improved.

In one embodiment of the technical scheme, the hand die is provided with a positioning part and a connecting part, the connecting part is positioned at the wrist of the hand die, the positioning part is connected with the connecting part, the positioning part is used for positioning the lower die plate, and the connecting part is fixedly connected with the upper end of the ejector rod.

In one embodiment of the technical scheme, the positioning part of the hand mold is provided with a positioning lug, the lower mold is provided with a positioning cavity for accommodating the positioning part, and the inner wall of the positioning cavity is also provided with a positioning groove matched with the positioning lug.

In one embodiment of the technical scheme, the lower die further comprises a lower die fixing plate, a lower die core and a spring, wherein the lower die plate is connected with the lower die fixing plate through die legs, and the lower die fixing plate is provided with a thimble hole corresponding to the thimble through hole;

the top plate comprises a thimble bottom plate and a thimble panel, the lower end of the thimble is connected with the thimble panel, the thimble panel and the thimble bottom plate are movably arranged between the lower die plate and the lower die fixing plate through a middle bracket, the spring is arranged between the thimble panel and the lower die plate, and the thimble panel is connected with the upper surface of the top plate bottom plate;

the upper die core is connected to the lower die plate, the lower die is arranged on the upper die core, a slide way is further arranged on the lower die plate, and the ejector rod is arranged in the slide way.

In one embodiment of the technical scheme, the upper die comprises an upper die plate, a runner plate and an upper die fixing plate, wherein the runner plate is connected between the upper die plate and the upper die fixing plate;

the hot runner is arranged on the runner plate, the upper die fixing plate is provided with a material nozzle, the hot runner is communicated with the material nozzle, a gate is arranged at each finger belly of the upper female die, and the hot runner is communicated with the gate;

an upper die core is arranged on the upper die plate, and the upper die core is provided with the upper female die;

the upper die plate is provided with a through hole, the flow channel plate is connected with a plurality of hot nozzles communicated with the hot runner, and the hot nozzles penetrate through the through hole and are communicated with the pouring gate of the upper die core.

In one embodiment of the technical scheme, a heating pipe is arranged in the runner plate, a power connector electrically connected with the heating pipe is further arranged on the upper die, and the power connector is used for connecting a power supply to the heating pipe.

In an embodiment of this technical scheme, the upper die further includes a splitter plate, a receiving groove for receiving the runner plate is provided on the splitter plate, the splitter plate is connected between the upper die plate and the upper die fixing plate, and the power connector is provided on the splitter plate.

In one embodiment of the present disclosure, the number of the lower dies is two to six, where each lower die is provided with two hand dies, and the two hand dies are mirror-symmetrical to each other and are arranged in pairs.

In an embodiment of the technical scheme, the device further comprises a glue injection device, wherein the glue injection device is arranged on the frame and located above the upper die, and the glue injection device is used for injecting plastic into the die after being buckled.

In one embodiment of the technical scheme, the thimble assembly further comprises a first driving piece, the first driving piece is arranged on the frame and located below the turntable, and the thimble is connected to the driving end of the first driving piece;

when the rotary table drives the lower die to rotate to the upper part of the ejector pin assembly, the first driving piece drives the ejector pin to move upwards to penetrate through the ejector pin through hole so as to abut against the top plate.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The foregoing and other objects, features and advantages of the application will be apparent from the following more particular descriptions of exemplary embodiments of the application as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the application.

Fig. 1 is a schematic structural view of an injection molding machine shown in an embodiment of the present application.

Fig. 2 is a schematic view of the injection molding machine shown in the embodiment of the present application after removing the mold.

Fig. 3 is an enlarged schematic view of a partial structure of the injection molding machine shown in the embodiment of the present application after removing a mold.

FIG. 4 is a schematic view of a configuration of an ejector pin assembly shown in an embodiment of the present application.

Fig. 5 is a schematic structural view of a mold shown in an embodiment of the present application.

Fig. 6 is an exploded structural schematic view of the upper die shown in the embodiment of the present application.

Fig. 7 is an exploded structural schematic view of the lower die and the hand die shown in the embodiment of the present application.

Fig. 8 is a schematic bottom view of the upper mold core according to the embodiment of the present application.

Fig. 9 is a schematic structural view of a hand mold shown in an embodiment of the present application.

Reference numerals illustrate:

10-a die; 11-upper die; 111-an upper die fixing plate; 1111-a nozzle; 112-a diverter plate; 113-flow channel plates; 1131—a hot runner; 114-upper template; 1141-via holes; 115-upper mold core; 1151-upper die; 1152-gate; 116-hot nozzle; 117-heating the pipe; 118-power connection;

12-hand mould; 121-a positioning part; 1211-positioning the bumps; 122-connection;

13-lower die; 131-a lower die fixing plate; 1311-mold pins; 1312-a microswitch; 132-ejector pins; 133-thimble panel; 134-thimble bottom plate; 135-middle tositude; 136-a guide rod; 137-spring; 138-lower template; 1381-locating cavities; 1382-detents; 1383-an inner template; 139-lower mold core; 1391—a lower die;

20-a frame; 31-a turntable; 311-thimble through holes; 32-a central axis; 33-a drive motor; 40-thimble assembly; 41-thimble; 42-a first driving member; 50-lifting assembly; 51-a bracket; 52-a second driver; 53-lifting plate; 60-glue injection device.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which some embodiments of the present application are shown, and it is apparent that some, but not all embodiments of the present application are described. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The following describes the technical scheme of the embodiments of the present application in detail with reference to the accompanying drawings.

As shown in fig. 1 to 9, the present embodiment is a glove injection molding machine with a turntable, comprising a frame 20, a turntable 31 provided on the frame 20 to rotate, a mold 10, a thimble assembly 40, and a glue injection device 60, which injection molds a pair of knitted gloves at a time into a pair of plastic gloves.

The turntable 31 has a disk structure, the center of the turntable 31 is connected to a central shaft 32, the central shaft 32 is installed on the frame 20 in a vertical direction, and the turntable 31 rotates around the central shaft 32. The rotation of the turntable 31 is driven by a drive motor 33, the drive motor 33 is mounted on the frame 20, and the drive motor 33 and the turntable 31 can be in drive connection by using a gear structure or a belt structure in the prior art, and the specific drive structure thereof will not be described in detail herein.

In this embodiment, the turntable 31 is provided with a plurality of thimble through holes 311 penetrating through the upper and lower surfaces; the turntable 31 is provided with a plurality of mounting positions for mounting the lower die of the die 10, and each mounting position is provided with at least one thimble through hole 311 for passing through the thimble 41 of the thimble assembly 40.

As shown in fig. 1 to 5, in the present embodiment, the mold 10 includes an upper mold 11, a plurality of hand molds 12 and a plurality of lower molds 13, wherein the mold 10 includes two hand molds 12, the upper mold 11 is disposed on the frame 20 through the lifting assembly 50 for lifting movement, the plurality of lower molds 13 are circumferentially and uniformly arranged at mounting positions on the turntable 31, and each lower mold 13 is provided with at least one hand mold 12.

The upper die 11 is provided with an upper female die 1151 corresponding to the shape of the hand die 12, and the lower die 13 is provided with a lower female die 1391 corresponding to the shape of the hand die 12, wherein the hand die 12, the upper female die 1151 and the lower female die 1391 are matched to form a die cavity when the die 10 is buckled; the lower die 13 comprises a lower die plate 138 and a push rod 132, the push rod 132 is arranged in the lower die plate 138 to perform sliding lifting movement, the upper end of the push rod 132 is connected with the hand die 12, and the push rod 132 slides upwards to drive the hand die 12 to lift and separate from the lower die 13 when the die 10 is opened.

As shown in the drawings, the number of the lower molds 13 is two, wherein each lower mold 13 is provided with two hand molds 12, and the two hand molds 12 are in mirror symmetry and are arranged in pairs, so that the two lower molds 13 are alternated, and when one lower mold 13 is used for injection molding, the other lower mold 13 can be used for operating the blanking of the plastic glove and the feeding of the sleeved knitted glove.

In this way, in the mold 10, the hand mold 12 is connected to the ejector rod 132 of the lower mold 13, the ejector rod 132 only moves in one lifting direction, the movement of the ejector rod 132 is relatively stable, the positioning precision and the movement stability of the hand mold 12 are also improved, and the hand mold 12 is prevented from colliding with the lower mold 13 and the upper mold 11 to damage the knitted glove; when the mold 10 is opened, the ejector rod 132 drives the hand mold 12 to lift away from the lower mold 13, leaving enough space for taking down the knitted glove after injection molding and sleeving the knitted glove to be injection molded.

In this embodiment, the hand mold 12 is provided with a positioning portion 121 and a connecting portion 122, the connecting portion 122 is located at the wrist of the hand mold 12, the positioning portion 121 is connected with the connecting portion 122, the positioning portion 121 is used for positioning with the lower template 138, and the connecting portion 122 is fixedly connected with the upper end of the ejector rod 132. In this way, the positioning portion 121 can improve the problem of positioning the hand mold 12 when the upper mold 11 and the lower mold 13 are clamped.

Specifically, the positioning portion 121 of the hand mold 12 is provided with a positioning projection 1211, the lower mold plate 138 is provided with a positioning cavity 1381 for accommodating the positioning portion 121, and an inner mold plate 1383 is further mounted on the bottom surfaces of the positioning cavity 1381 and the positioning groove 1382. The upper die plate 114 may have a structure corresponding to the positioning cavity 1381, the positioning groove 1382, and the inner die plate 1383.

In this embodiment, the lower mold 13 further includes a lower mold fixing plate 131, a mold pin 1311, a thimble panel 133 and a thimble bottom plate 134, the mold pin 1311 is connected between the lower mold plate 138 and the lower mold fixing plate 131, a thimble hole is formed in the lower mold fixing plate 131, the bottom surface of the lower mold fixing plate 131 is connected with an injection molding machine through a lower mold heat insulation plate, and a thimble 41 of the injection molding machine passes through the thimble hole to be used for propping against the thimble bottom plate 134, and then drives the hand mold 12 to lift through the thimble panel 133 and the thimble 132.

The lower extreme of ejector pin 132 is connected with thimble panel 133, and thimble panel 133 and thimble bottom plate 134 are all through well holding in the palm the department 135 activity and are located between lower bolster 138 and the lower bolster fixed plate 131, are equipped with spring 137 between thimble panel 133 and the lower bolster 138, and thimble panel 133 is located between roof bottom plate and the lower bolster 138. The lower die plate 138 is provided with a lower die core 139, and the lower die core 139 is provided with a lower concave die 1391.

Specifically, the ejector pin panel 133 is connected with a guide rod 136, the guide rod 136 is arranged in a guide hole on the lower die plate 138 to slide, so that the ejector pin panel can move up and down relative to the lower die plate 138, the guide rod 136 and the guide hole are jointly used for guiding the movement of the ejector pin panel 133, a spring 137 in a compressed state is sleeved on the guide rod 136, two ends of the spring 137 respectively abut against between the ejector pin panel 133 and the lower die plate 138, and in addition, the ejector pin panel 133 and the ejector pin bottom plate 134 are movably arranged between the lower die plate 138 and the lower die fixing plate 131 through a middle bracket 135, so that the movement stability of the ejector pin panel 133 and the ejector pin bottom plate 134 is ensured.

Optionally, a micro switch 1312 is disposed on a side of the lower die fixing plate 131 near the ejector plate 133, and the ejector plate 133 can trigger the micro switch 1312 after descending and resetting, so as to ensure that the micro switch 1312 is triggered to control the descent of the upper film 11 to perform die assembly only when the ejector plate 133 is in resetting, and the micro switch 1312 is not triggered to control the die assembly to be unable to perform die assembly.

Optionally, in some embodiments, cooling pipes, not shown in the drawing, are further provided in the upper mold plate 114, the hand mold 12, the lower mold plate 138 and the lower mold core 139, so as to ensure that the labor protection glove manufactured after injection molding can be cooled rapidly, thereby improving the production efficiency.

In this embodiment, the upper die 11 includes an upper die plate 114, a runner plate 113, a flow dividing plate 112 and an upper die fixing plate 111, and the runner plate 113 is connected between the upper die plate 114 and the upper die fixing plate 111; the inner part of the runner plate 113 is provided with a hot runner 1131, the upper die fixing plate 111 is provided with a material nozzle 1111, the hot runner is communicated with the material nozzle 1111, a gate 1152 is arranged at each finger belly of the upper female die 1151, and the hot runner 1131 is communicated with the gate 1152.

So, guaranteed that the finger tripe department of every finger all can mould plastics, every finger tripe department is equipped with runner 1152 and makes every finger mould plastics all go on alone, mutually noninterfere, has guaranteed the stability of moulding plastics the process.

Specifically, an upper mold core 115 is installed on the upper mold plate 114, and an upper female mold 1151 is provided on the upper mold core 115. The upper mold plate 114 is provided with a through hole 1141, the runner plate 113 is connected with a plurality of thermal nozzles 116 communicated with the hot runner, and the thermal nozzles 116 pass through the through hole 1141 to be communicated with a gate 1152 of the upper mold core 115.

In this embodiment, a heating pipe 117 is disposed inside the runner plate 113, a power connector 118 electrically connected to the heating pipe 117 is further disposed on the upper mold 11, the power connector 118 is used for connecting the heating pipe 117 to a power source, a receiving slot for receiving the runner plate 113 is disposed on the split plate 112, the split plate 112 is connected between the upper mold plate 114 and the upper mold fixing plate 111, the power connector 118 is disposed on the split plate 112, and the power connector 118 is electrically connected to the heating pipe 117.

In this embodiment, the thimble assembly 40 includes a thimble 41 and a first driving member 42, the first driving member 42 is disposed on the frame 20 through a mounting frame, the first driving member 42 is located below the turntable 31, and the thimble 41 is connected to the driving end of the first driving member 42; when the turntable 31 drives the lower mold 13 to rotate above the ejector pin assembly 40, the first driving member 42 drives the ejector pin 41 to move upward through the ejector pin through hole 311 and the ejector pin hole to abut against the ejector pin bottom plate 134, and drives the ejector pin 132 to move upward. Preferably, the first driving member 42 is a hydraulic cylinder or air cylinder.

It should be noted that, in order to ensure the stability of the ejector pins 41 and the ejector pin bottom plate 134, the ejector pins 41 may be used in combination, in which the five ejector pins 41 are exemplarily shown in the drawings, so as to ensure the multipoint contact between the ejector pin bottom plate 134 and the ejector pins 41, and improve the stability of the ejection, and correspondingly, the ejector pin through holes 311 at each mounting position on the turntable 31 are also provided with a plurality of ejector pin through holes, the arrangement of which corresponds to the arrangement of the plurality of ejector pins 41, and the ejector pin holes on the lower die fixing plate 131 are also the same.

In this embodiment, the lifting assembly 50 includes a bracket 51, a second driving member 52 and a lifting plate 53, where the bracket 51 is installed on the stand 20, the bracket 51 is a frame structure with a sliding rod, the lifting plate 53 is disposed on the sliding rod of the bracket 51 and moves in a sliding and lifting manner, the second driving member 52 is installed on the bracket 51, the driving end of the second driving member 52 is connected with the lifting plate 53 and is used to drive the lifting plate 53 to perform lifting movement, and the upper die fixing plate 111 of the die 10 is fixedly connected with the lifting plate 53 through an upper die heat insulation plate, and the lifting plate 53 drives the upper die 11 to perform lifting movement. Preferably, the second driving member 52 is a hydraulic cylinder or air cylinder, and the number of the second driving member is two, so that the lifting power is improved.

In this embodiment, the glue injection device 60 is disposed on the frame 20 and above the upper mold 11, and the glue injection device 60 is used for injecting plastic into the mold 10 after being buckled. Since the glue injection device 60 is of the prior art, its structure will not be described in detail here.

The embodiments of the present application have been described above, the foregoing description is exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the improvement of technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. The glove injection molding machine with the turntable is characterized by comprising a frame, a turntable arranged on the frame and rotating, a mold and a thimble assembly, wherein the turntable automatically rotates around a central axis in the vertical direction, and a plurality of thimble through holes penetrating through the upper surface and the lower surface are formed in the turntable;

2. The glove molding machine with a turntable according to claim 1, wherein the hand mold is provided with a positioning part and a connecting part, the connecting part is positioned at the wrist of the hand mold, the positioning part is connected with the connecting part, the positioning part is used for positioning with the lower mold plate, and the connecting part is fixedly connected with the upper end of the ejector rod.

3. The glove molding machine with a turntable according to claim 2, wherein the positioning part of the hand mold is provided with a positioning projection, the lower mold is provided with a positioning cavity for accommodating the positioning part, and a positioning groove for being matched with the positioning projection is formed on the inner wall of the positioning cavity.

4. The glove molding machine with a turntable according to any one of claims 1 to 3, wherein the lower mold further comprises a lower mold fixing plate, a lower mold core and a spring, the lower mold plate is connected with the lower mold fixing plate through mold legs, and a thimble hole corresponding to the thimble through hole is formed in the lower mold fixing plate;

5. A glove molding machine according to any of claims 1 to 3, wherein the upper mold comprises an upper mold plate, a runner plate, and an upper mold fixing plate, the runner plate being connected between the upper mold plate and the upper mold fixing plate;

6. The glove molding machine with a turntable according to claim 5, wherein a heating pipe is provided in the runner plate, and the upper mold is further provided with a power connector electrically connected to the heating pipe, and the power connector is used for connecting a power supply to the heating pipe.

7. The glove molding machine with a turntable of claim 6, wherein the upper mold further comprises a diverter plate, wherein the diverter plate is provided with a receiving groove for receiving the runner plate, the diverter plate is connected between the upper mold plate and the upper mold fixing plate, and the power connector is arranged on the diverter plate.

8. A glove molding machine according to any one of claims 1 to 3, wherein the number of lower molds is two to six, wherein two hand molds are provided on each lower mold, and the two hand molds are mirror-symmetrical to each other and are arranged in pairs.

9. A glove molding machine according to any of claims 1 to 3, further comprising a glue injection device disposed on the frame and above the upper mold, the glue injection device being configured to inject plastic into the mold after the snap-fit.

10. A glove injection molding machine according to any one of claims 1 to 3, wherein said thimble assembly further comprises a first drive member disposed on said frame and below said turntable, said thimble being connected to a drive end of said first drive member;