CN215320165U

CN215320165U - Low-pressure glue injection machine using LD-PE material

Info

Publication number: CN215320165U
Application number: CN202121197094.8U
Authority: CN
Inventors: 张宏卓
Original assignee: Guangdong Mingji High Tech Electronics Co ltd
Current assignee: Guangdong Mingji High Tech Electronics Co ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2021-12-28
Anticipated expiration: 2031-05-31

Abstract

The utility model relates to a LD-PE material technical field that moulds plastics, concretely relates to use low pressure injecting glue machine of LD-PE material, including workstation, forming die, injecting glue rifle, be used for driving the injecting glue rifle along the vertical linear module of vertical direction lift and be used for driving the linear module of sideslip of vertical linear module sideslip, forming die includes mould and lower mould, a plurality of lower mould chambeies have been seted up to the lower mould, go up the mould seted up with a plurality of last die cavitys that the lower mould chamber corresponds, still including connecting the mouth of a river between two adjacent last die cavitys and or two adjacent lower die cavitys, it still sets up the confession injecting glue rifle and stretches into to go up the mould the spliced eye that supplies the injecting glue rifle to stretch into the upside edge of mouth of a river accomplishes the injecting glue, the lower extreme of spliced eye with the mouth of a river intercommunication. The low-pressure glue injection machine realizes low-pressure glue injection of LD-PE materials, greatly reduces raw material waste caused by excessive water gap materials, and reduces the rejection rate of injection products, especially wire harness products such as connectors, USB connectors and the like.

Description

Low-pressure glue injection machine using LD-PE material

Technical Field

The application relates to the technical field of LD-PE material injection molding, in particular to a low-pressure glue injection machine using an LD-PE material.

Background

The junction of the wire harness and the PCB of the existing electronic product needs to be subjected to injection molding and curing through an injection molding process to form an encapsulation internal mold, so that the purpose of protecting welding spots and connecting wires is achieved. The internal mold packaging device is particularly suitable for internal mold packaging processing of the joint of a PCB (printed circuit board) and a wiring harness of a USB connecting male head or female head. The existing injection molding process mainly comprises LE-PE materials and hot melt adhesive. The LE-PE material is low in price (12.3 yuan/kg), high in hardness and good in product protection performance, and is widely applied, the LE-PE material accounts for about 95% in the current wire harness injection molding process, and the rest hot melt adhesive with higher price is adopted. Although the LE-PE material is high in quality and low in price, due to the fact that the viscosity and the hardness of the LE-PE material are high, the injection molding pressure required in the existing injection molding process is also high, meanwhile, a water gap of an existing molding die is designed to be a tree-shaped water gap with a single feeding hole matched with a multi-diversion water gap, the length of the water gap is long, the pressure required by the LE-PE material injection molding is greatly increased, and the liquid rubber material forms high-speed and high-pressure rubber material fluid under the action of high pressure to form great impact force on fine lines and welding points of a wire harness, so that the product rejection rate caused by the fact that the rubber material fluid breaks the fine lines or breaks the welding points is always high. The pressure of an injection molding process is reduced by adopting hot melt adhesive by part of manufacturers, so that the rejection rate of products is reduced, but the price of the hot melt adhesive is high (130 yuan/kg), the hot melt adhesive is soft after being cured and molded, the hardness of the hot melt adhesive is low, the protection degree of a wire harness and a welding spot at a joint is low, the joint is easy to damage and the problem of open circuit is caused in the use process of the products, the comprehensive service life of the products is short, the low pressure cannot be really realized by the conventional low-pressure plastic machine applying the hot melt adhesive, the low pressure can be realized only when the hot melt adhesive is adopted, and LE-PE materials cannot be adopted for low-pressure injection molding. The above-mentioned problems have become one of the important factors restricting the development of the wire harness connector.

Disclosure of Invention

In order to overcome the defects and shortcomings in the prior art, the low-pressure glue injection machine using the LD-PE material is provided, the low-pressure glue injection machine realizes low-pressure glue injection of the LD-PE material, greatly reduces raw material waste caused by excessive water gap materials, and reduces the rejection rate of injection products, particularly wire harness products such as connectors and USB connectors.

The purpose of the application is realized by the following technical scheme:

the utility model provides an use low pressure injecting glue machine of LD-PE material, includes the workstation, set up in the forming die of workstation, set up in the injecting glue rifle of forming die top, be used for driving the injecting glue rifle along the vertical direction lift vertical linear module and be used for driving the horizontal moving linear module of vertical linear module sideslip, forming die includes mould and lower mould, a plurality of lower die cavities have been seted up to the lower mould, go up the mould seted up with a plurality of last die cavities that the lower die cavity corresponds, still including connecting the mouth of a river between two adjacent last die cavities andor two adjacent lower die cavities, go up the mould and still seted up and supply the injecting glue rifle to stretch into the spliced eye of the upside edge completion injecting glue in mouth of a river, the lower extreme of spliced eye with mouth of a river intercommunication, the quantity of spliced eye with the number in mouth of a river corresponds.

The spliced eye comprises main round hole, back taper shrinkage cavity, pilot hole and the notes gluey hole that connects gradually, the lower extreme in notes gluey hole with the mouth of a river intercommunication.

A positioning module used for fixing the end part of the product to be injection-molded is clamped between the upper die and the lower die, and a plurality of positioning holes for inserting the end part of the product to be injection-molded are formed in one side of the positioning module, which faces the upper die cavity and/or the lower die cavity; the injection molding machine is characterized by further comprising a limiting strip used for pressing a product to be injection molded downwards, wherein a plurality of limiting grooves matched with the product to be injection molded are formed in the lower end face of the limiting strip.

The mold opening and closing mechanism comprises an upper transverse plate, at least two guide pillars arranged in parallel, a sleeve sleeved outside the guide pillars, a lower transverse plate and a lifting motor or a lifting cylinder, the upper mold is fixed on the upper transverse plate, the upper end of each guide pillar is fixedly connected with the upper transverse plate, the lower end of each guide pillar is fixedly connected with the lower transverse plate, and the output end of the lifting motor or the lifting cylinder is connected with the lower transverse plate.

The glue injection gun comprises a pneumatic valve, a gun head fixed at a glue outlet end of the pneumatic valve, an electromagnetic valve used for controlling the opening and closing of the pneumatic valve, a glue solution heater used for heat preservation of glue solution, and a valve needle arranged in the valve body and used for controlling the opening and closing of the glue outlet of the valve, wherein the pneumatic valve comprises a valve body, a front end cover fixed at the front end of the valve body, and a rear end cover fixed at the rear end of the valve body, the valve needle is provided with a glue inlet for the glue solution to enter, the glue inlet of the valve is connected with a liquid outlet end of the glue solution heater, a cylinder body is arranged in the valve body, a piston assembly is arranged in the cylinder body, the rear end of the valve needle is fixedly connected with the piston assembly, the valve body is provided with a valve air inlet, the valve air inlet is communicated with the foremost end of the cylinder body, and the valve air inlet is communicated with a gas outlet end of the electromagnetic valve, still including pressing from both sides the high resilience piece of locating between the rear end face of piston assembly and cylinder body, still including the gear pump that is used for carrying the glue solution, the feed liquor end of glue solution heater is connected with the glan head, the glan head with the play liquid end of gear pump is connected.

Piston assembly includes tensioning plate down, last tensioning plate and flexible glue seal, the flexible glue seal is formed by opening orientation opposite rubberizing cap and lower rubber cap integrated into one piece, it locates in the rubberizing cap to go up the tensioning plate cover, just it locates to go up the tensioning plate cover outside the needle, the tensioning plate cover is located down in the rubber cap down, still includes the T type lantern ring, T type lantern ring cover is located outside the needle, tensioning plate cover is located down outside the T type lantern ring.

The high-resilience member is a high-resilience pressure spring or a high-resilience soft rubber member.

The high-resilience soft rubber piece is formed by integrally forming a soft rubber sleeve body and two anti-cracking rings, and the two anti-cracking rings are respectively covered on two end faces of the soft rubber sleeve body.

The beneficial effect of this application lies in: the forming die of the low-pressure glue injection machine using the LD-PE material adopts an injection molding mode of multi-plug hole glue injection, compared with the existing injection molding mode of adopting a single feed port to match with a tree-shaped water gap so as to realize simultaneous injection molding of a plurality of die cavities by a single feed port, the injection molding mode of adopting the multi-plug hole to match with a plurality of water gaps and communicating one plug hole with one corresponding water gap can reduce the length of the water gap to the minimum, the total length of the water gap is more than one tenth of the existing die with the same cavity amount of the LE-PE material, the raw material waste caused by excessive water gap materials is greatly reduced, the pressure required by injection molding of the LE-PE material is greatly reduced, the low-pressure injection molding is realized, the problem that the product rejection rate is always high due to the fact that a sizing material fluid breaks a fine line or breaks a welding spot is solved, and the production efficiency and the economic benefit are greatly improved, and the multi-cavity of the arborescent mouth of a river of single feed inlet cooperation of current adoption moulds plastics, and a branch of mouth of a river material corresponds a plurality of shaping products, and mouth of a river material is even with a plurality of products are glutinous, and the mouth of a river excision is very inconvenient, and one side of two products is connected respectively at the both ends that a mouth of a river of this application corresponds two products and mouth of a river, and the excision is simple and convenient, is difficult for damaging the product after the shaping.

Drawings

FIG. 1 is a perspective view of the present application;

FIG. 2 is a schematic diagram of the main structure of the present application;

FIG. 3 is a perspective view of the vertical linear module, the traverse linear module, and the glue injection gun of the present application;

FIG. 4 is a perspective view of the glue gun of the present application;

fig. 5 is a perspective view of the opening and closing drive mechanism and the molding die of the present application;

FIG. 6 is a cross-sectional view of a forming die of the present application;

FIG. 7 is a cross-sectional view of the pneumatic valve and tip of the present application;

FIG. 8 is an exploded view of the forming die of the present application;

FIG. 9 is another exploded view of the forming die of the present application;

fig. 10 is a schematic structural view of a lance tip according to example 2 of the present application;

FIG. 11 is a schematic structural view of a jack of embodiment 2 of the present application;

FIG. 12 is a perspective view of the soft gel seal of the present application;

fig. 13 is a perspective view of the high resilience bladder of the present application.

The reference signs are: the glue injection machine comprises a workbench 1, a forming die 2, a glue injection gun 3, a vertical linear module 4, a transverse linear module 5, an upper die 6, a lower die 7, a lower die cavity 8, an upper die cavity 9, a water gap 10, an insertion hole 11, a positioning module 12, a positioning hole 13, a limiting strip 14, a limiting groove 15, a lower assembling groove 16, an upper assembling groove 17, an alignment column 18, an alignment hole 19, an opening and closing driving mechanism 20, an upper transverse plate 21, a guide column 22, a sleeve 23, a lower transverse plate 24, a lifting motor or lifting cylinder 25, a pneumatic valve 26, a gun head 27, an electromagnetic valve 28, a glue heater 29, a valve body 30, a front end cover 31, a rear end cover 32, a valve glue outlet 33, a valve needle 34, a valve glue inlet 35, a cylinder body 36, a valve air inlet 37, a high-resilience piece 38, a Glan head 39, a lower tensioning sheet 40, an upper tensioning sheet 41, a soft glue sealing body 42, an upper glue cap 43, a lower glue cap 44, a T-shaped collar 45, a limiting block 46, a limiting bolt 47, a limiting block, The high-resilience rubber sleeve comprises a high-resilience rubber piece 48, a soft rubber sleeve body 49, an anti-cracking ring 50, an air outlet pipe 51, a main round hole 52, an inverted cone shrinkage hole 53, an assembly hole 54, a glue injection hole 55, a guide cylinder 56, a limiting inverted cone 57, a middle cylinder 58, a glue injection conical head 59, a rack 60, a controller 61, an alarm lamp 62 and a machine shell 63.

Detailed Description

For the convenience of understanding of those skilled in the art, the present application will be further described with reference to the following examples and accompanying fig. 1 to 13, and the content of the embodiments is not limited to the present application.

Example 1

A low-pressure glue injection machine using LD-PE materials comprises a workbench 1, a forming mold 2 arranged on the workbench 1, a glue injection gun 3 arranged above the forming mold 2, a vertical linear module 4 for driving the glue injection gun 3 to lift along the vertical direction, and a transverse linear module 5 for driving the vertical linear module 4 to transversely move, the forming die 2 comprises an upper die 6 and a lower die 7, the lower die 7 is provided with a plurality of lower die cavities 8, the upper die 6 is provided with a plurality of upper die cavities 9 corresponding to the lower die cavities 8, and also comprises a water gap 10 connected between two adjacent upper die cavities 9 and/or two adjacent lower die cavities 8, the upper die 6 is also provided with a plug hole 11 for the glue injection gun 3 to extend into the edge of the upper side of the water gap 10 to complete glue injection, the lower end of the plug hole 11 is communicated with the water gap 10, and the number of the plug holes 11 corresponds to the number of the water gaps 10.

A positioning module 12 for fixing the end part of the product to be injection-molded is clamped between the upper die 6 and the lower die 7, and a plurality of positioning holes 13 for inserting the end part of the product to be injection-molded are arranged on one side of the positioning module 12 facing the upper die cavity 9 and/or the lower die cavity 8; the injection molding machine is characterized by further comprising a limiting strip 14 used for pressing a product to be injection molded downwards, and a plurality of limiting grooves 15 matched with the product to be injection molded are formed in the lower end face of the limiting strip 14.

The lower die 7 is provided with a lower assembly groove 16, the upper die 6 is provided with an upper assembly groove 17, the lower half part of the positioning module 12 is positioned in the lower assembly groove 16, and after die assembly, the upper half part of the positioning module 12 is clamped in the upper assembly groove 17; the limiting groove 15 is positioned between the upper die cavity 9 and the positioning hole 13, and the limiting strip 14 is fixed on the upper die 6; the lower die 7 is fixed with a die closing alignment column 18, and the upper die 6 is provided with a die closing alignment hole 19 for the die closing alignment column 18 to be inserted.

Specifically, treat that injection moulding product can be for the connector of taking the pencil, take female first/public first of USB of pencil, take female first/public first or other connectors of taking the pencil of Type-C of pencil. In the practical application of this application, treat that injection moulding product's tip inserts and accomplishes preliminary location in locating hole 13 of orientation module 12, after the compound die, injection moulding product position of treating that location hole 13 drill way is close to spacing strip 14 and spacing groove 15 carries out the secondary location, and positioning stability is good, treats that injection moulding product is difficult for taking place not hard up or shifting after receiving the impact of liquid glue solution, guarantees to treat injection moulding product's shaping quality.

The mold opening and closing device is characterized by further comprising an opening and closing driving mechanism 20 used for driving the upper mold 6 and the lower mold 7 to complete mold closing, wherein the opening and closing driving mechanism 20 comprises an upper transverse plate 21, at least two guide posts 22 arranged in parallel, a sleeve 23 sleeved outside the guide posts 22, a lower transverse plate 24 and a lifting motor or a lifting cylinder 25, the upper mold 6 is fixed on the upper transverse plate 21, the upper ends of the guide posts 22 are fixedly connected with the upper transverse plate 21, the lower ends of the guide posts 22 are fixedly connected with the lower transverse plate 24, and the output end of the lifting motor or the lifting cylinder 25 is connected with the lower transverse plate 24.

The glue injection gun 3 comprises a pneumatic valve 26, a gun head 27 fixed at a glue outlet end of the pneumatic valve 26, a solenoid valve 28 used for controlling the opening and closing of the pneumatic valve 26, and a glue solution heater 29 used for heat preservation of glue solution, wherein the pneumatic valve 26 comprises a valve body 30, a front end cover 31 fixed at the front end of the valve body 30, and a rear end cover 32 fixed at the rear end of the valve body 30, the front end cover 31 is provided with a valve glue outlet 33, the glue injection gun further comprises a valve needle 34 arranged in the valve body 30 and used for controlling the opening and closing of the valve glue outlet 33, the valve body 30 is provided with a valve glue inlet 35 for the glue solution to enter, the valve glue inlet 35 is connected with a liquid outlet end of the glue solution heater 29, a cylinder body 36 is arranged in the valve body 30, a piston assembly is arranged in the cylinder body 36, the rear end of the valve needle 34 is fixedly connected with the piston assembly, the valve body 30 is provided with a valve air inlet 37, and the valve air inlet 37 is communicated with the foremost end of the cylinder body 36, the valve air inlet 37 is communicated with an air outlet end of the electromagnetic valve 28, and further comprises a high resilience piece 38 clamped between the piston assembly and the rear end face of the cylinder body 36, and further comprises a gear pump for conveying glue liquid, a liquid inlet end of the glue liquid heater 29 is connected with a gram head 39, and the gram head 39 is connected with a liquid outlet end of the gear pump.

Specifically, the glue outlet end of the gear pump is connected with the gland head 39 through a pipeline.

Piston assembly includes tensioning plate 40 down, goes up tensioning plate 41 and flexible glue seal 42, flexible glue seal 42 is formed by the opposite last rubber cap 43 of opening orientation and lower rubber cap 44 integrated into one piece, go up in tensioning plate 41 cover locates last rubber cap 43, just it locates to go up tensioning plate 41 cover outside needle 34, in tensioning plate 40 cover locates down rubber cap 44 down, still include T type lantern ring 45, T type lantern ring 45 cover is located outside needle 34, tensioning plate 40 cover is located down outside T type lantern ring 45.

The utility model provides a injecting glue rifle 3 passes through the opening and shutting of the air current of the valve air inlet 37 of solenoid valve 28 control entering pneumatic valve 26, the pressure drive piston assembly of rethread air current itself moves towards the rear end of cylinder body 36, thereby drive needle 34 backward motion, and then make needle 34 open valve glue outlet 33, the LD-PE glue solution of glue solution heater 29 enters the valve through valve glue inlet 35 and in the valve flows out the entering rifle head 27 through valve glue outlet 33 again and carries out the injecting glue work, when needing to stop the injecting glue, solenoid valve 28 stops valve air inlet 37 air feed and exhaust, piston assembly rebounds fast under the effect of high rebound piece 38 and resets to the initial position, closing valve glue outlet 33. The electromagnetic valve 28 and the pneumatic valve 26 are matched to control the injection molding work of the LD-PE glue solution, the single glue injection amount of the LD-PE glue solution can be accurately controlled, the control precision is high, the stability is good, the LD-PE glue solution which is about to enter the pneumatic valve 26 for glue injection work is heated and insulated through the glue solution heater 29, the glue solution can be ensured to be in the best glue injection temperature and flowing state, the resistance of the LD-PE glue solution flowing through each component is reduced, the glue injection is smoother, the pressure required by the LD-PE glue solution is effectively reduced, and the low-pressure glue injection is realized.

In practical application, under the action of the high rebound member 38, the upper tension sheet 41 is pressed forward by the high rebound member 38, the piston assembly is held at the foremost end of the cylinder 36, the pneumatic valve 26 is in a closed state, when glue injection is required, the solenoid valve 28 operates and sends a constant pressure air flow into the foremost end of the cylinder 36 through the valve air inlet 37, the constant pressure air flow presses the lower tension sheet 40 backward, so as to drive the valve needle 34 to move backward, the valve glue outlet 33 is opened, glue injection starts, when glue injection is required to stop, the solenoid valve 28 stops sending the constant pressure air flow to the valve air inlet 37 and exhausts, and the piston assembly resets to close the valve glue outlet 33 under the action of the high rebound member 38. The piston assembly of this application adopts the structural design of tensioning piece 40 and last tensioning piece 41 under the cooperation of flexible glue seal 42, and tensioning piece 40 and last tensioning piece 41 under the structure cooperation that flexible glue seal 42 formed by opposite last rubber cap 43 of opening orientation and lower rubber cap 44 integrated into one piece, compactness between piston and the cylinder body 36 is good, and the seal is splendid. Realize airtight through a packing ring between every piston of current pneumatic valve 26 and cylinder body 36, at the bottom of the gas tightness of single piston, easy gas leakage to can't guarantee pneumatic valve 26's the precision that opens and shuts, in order to overcome this defect, current pneumatic valve 26 adopts the integrated configuration that the alternate setting of many pistons, thereby guarantee the stability of the precision that opens and shuts, but the structural design who adopts many pistons not only is with high costs and the length of cylinder is also overlength, is unfavorable for the application of miniaturized equipment. The utility model provides a piston assembly's structural design has improved the compactness and the stability of piston assembly and cylinder effectively, is difficult for taking place the gas leakage problem, and pneumatic valve 26 adopts single piston cooperation cylinder alright realize that the high accuracy opens and shuts, has greatly shortened pneumatic valve 26's length, does benefit to miniaturized application.

The valve needle 34 is provided with a maximally formed stroke stopper 46 for restricting forward action of the valve needle 34; the valve needle structure further comprises a stroke limiting bolt 47 used for limiting the maximum formation of the backward movement of the valve needle 34, the end part of the stroke limiting bolt 47 penetrates through the rear end cover 32 and then extends into the rear section of the cylinder body 36, the end part of the stroke limiting bolt 47 is positioned right behind the rear end of the valve needle 34, and the formation limiting bolt is in threaded connection with the rear end cover 32.

The high resilience member 38 is a high resilience compression spring or a high resilience rubber member 48.

The high-resilience soft rubber piece 48 is formed by integrally forming a soft rubber sleeve body 49 and two anti-cracking rings 50, and the two anti-cracking rings 50 are respectively covered on two end faces of the soft rubber sleeve body 49. The anti-crack ring 50 is a circle of thread type soft rubber ring.

The design of preventing ring 50 makes the junction of preventing ring 50 and flexible glue sleeve body 49 after flexible glue sleeve body 49 and two 50 integrated into one piece that prevent ring 50 and flexible glue sleeve body 49 form the buffering recess, alleviates the destruction that axial direction's extrusion force produced flexible glue sleeve body 49, prevents ring 50's existence simultaneously and can form the power of dragging of certain circumferencial direction, reduces circumferencial direction's deflection when flexible glue sleeve body 49 receives the extrusion, places flexible glue sleeve body 49's tip fracture.

The electromagnetic valve 28 is characterized in that an air outlet pipe 51 is connected to the air outlet end of the electromagnetic valve 28, and the air outlet pipe 51 is communicated with the valve air inlet 37 through the glue solution heater 29.

Specifically, the plug hole 11 is gradually reduced from top to bottom, a glue injection hole 55 is formed at the bottom end of the plug hole 11, and the lower end of the glue injection hole 55 is communicated with the water gap 10; the shape of the lance head 27 adopts an inverted cone structural design, the outer diameter of the smallest end of the lance head 27 is smaller than the aperture of the glue injection hole 55, in the practical application process, the lance head 27 is inserted into the insertion hole 11, the foremost end of the lance head 27 is inserted into the glue injection hole 55, and when the lance head 27 is inserted in place, the side surface of the lance head 27 and the upper end opening of the glue injection hole 55 are closed, and glue injection is started.

Specifically, the traverse linear module 5 is fixed on the worktable 1, and further comprises a rack 60, a controller 61, an alarm lamp 62 and a casing 63, wherein the worktable 1 is arranged in the middle of the rack 60, and the alarm lamp 62 is arranged at the top of the rack 60. The alarm lamp 62, the vertical linear module 4, the transverse linear module 5, the lifting motor or the lifting cylinder 25, the electromagnetic valve 28, the glue solution heater 29 and the gear pump are respectively electrically connected with the controller 61.

Example 2

This example differs from example 1 in that:

the plug hole 11 is composed of a main round hole 52, an inverted cone shrinkage hole 53, an assembly hole 54 and a glue injection hole 55 which are connected in sequence, and the lower end of the glue injection hole 55 is communicated with the water gap 10.

Specifically, the two ends of the nozzle 10 are respectively communicated with the opposite sides of the two adjacent upper mold cavities 9 and/or the two adjacent lower mold cavities 8. The aperture of the main round hole 52 is equal to the maximum aperture of the inverted cone shrinkage hole 53, the minimum aperture of the inverted cone shrinkage hole 53 is equal to the aperture of the assembly hole 54, the aperture of the glue injection hole 55 is smaller than the aperture of the assembly hole 54, and the hole depth of the glue injection hole 55 is smaller than 0.5 cm.

The gun head 27 is composed of a guide cylinder 56, a limiting inverted cone 57, a middle cylinder 58 and a glue injection conical head 59 which are connected in sequence, in practical application, the guide cylinder 56 is matched with the main round hole 52 of the insertion hole 11 to complete the guide positioning of the gun head 27, the limiting inverted cone 57 is matched with the inverted cone shrinkage hole 53 of the insertion hole 11 to complete the insertion stroke limiting of the gun head 27, meanwhile, the air tightness of the gun head 27 and the insertion hole 11 is enhanced, the middle cylinder 58 is matched with the assembly hole 54 to achieve the secondary alignment operation, the matching precision is ensured, the closing of the glue injection hole 55 is completed at the same time, the airtightness between the gun head 27 and the insertion hole 11 is further enhanced, and the glue injection conical head 59 is inserted into the glue injection hole 55 to perform glue injection work.

The above embodiments are preferred implementations of the present application, and the present application can be implemented in other ways without departing from the spirit and scope of the present application.

Claims

1. The utility model provides an use low pressure injecting glue machine of LD-PE material which characterized in that: including the workstation, set up in the forming die of workstation, set up in the injecting glue rifle of forming die top, be used for driving the injecting glue rifle along the vertical direction lift vertical linear module and be used for driving the horizontal moving linear module of vertical linear module sideslip, forming die includes mould and lower mould, a plurality of die cavities down have been seted up to the lower mould, go up the mould seted up with a plurality of die cavities of going up that the die cavity corresponds down still including connecting in the mouth of a river between two adjacent last die cavities andor two adjacent die cavities down, go up the mould and still seted up and supply the injecting glue rifle to stretch into the spliced eye of the upside edge completion injecting glue in mouth of a river, the lower extreme of spliced eye with mouth of a river intercommunication, the quantity of spliced eye with the number in mouth of a river corresponds.

2. The low-pressure glue injection machine using LD-PE material as claimed in claim 1, characterized in that: the spliced eye comprises main round hole, back taper shrinkage cavity, pilot hole and the notes gluey hole that connects gradually, the lower extreme in notes gluey hole with the mouth of a river intercommunication.

3. The low-pressure glue injection machine using LD-PE material as claimed in claim 1, characterized in that: a positioning module used for fixing the end part of the product to be injection-molded is clamped between the upper die and the lower die, and a plurality of positioning holes for inserting the end part of the product to be injection-molded are formed in one side of the positioning module, which faces the upper die cavity and/or the lower die cavity; the injection molding machine is characterized by further comprising a limiting strip used for pressing a product to be injection molded downwards, wherein a plurality of limiting grooves matched with the product to be injection molded are formed in the lower end face of the limiting strip.

4. The low-pressure glue injection machine using LD-PE material as claimed in claim 1, characterized in that: the mold opening and closing mechanism comprises an upper transverse plate, at least two guide pillars arranged in parallel, a sleeve sleeved outside the guide pillars, a lower transverse plate and a lifting motor or a lifting cylinder, the upper mold is fixed on the upper transverse plate, the upper end of each guide pillar is fixedly connected with the upper transverse plate, the lower end of each guide pillar is fixedly connected with the lower transverse plate, and the output end of the lifting motor or the lifting cylinder is connected with the lower transverse plate.

5. The low-pressure glue injection machine using LD-PE material as claimed in claim 1, characterized in that: the glue injection gun comprises a pneumatic valve, a gun head fixed at a glue outlet end of the pneumatic valve, an electromagnetic valve used for controlling the opening and closing of the pneumatic valve, a glue solution heater used for heat preservation of glue solution, and a valve needle arranged in the valve body and used for controlling the opening and closing of the glue outlet of the valve, wherein the pneumatic valve comprises a valve body, a front end cover fixed at the front end of the valve body, and a rear end cover fixed at the rear end of the valve body, the valve needle is provided with a glue inlet for the glue solution to enter, the glue inlet of the valve is connected with a liquid outlet end of the glue solution heater, a cylinder body is arranged in the valve body, a piston assembly is arranged in the cylinder body, the rear end of the valve needle is fixedly connected with the piston assembly, the valve body is provided with a valve air inlet, the valve air inlet is communicated with the foremost end of the cylinder body, and the valve air inlet is communicated with a gas outlet end of the electromagnetic valve, still including pressing from both sides the high resilience piece of locating between the rear end face of piston assembly and cylinder body, still including the gear pump that is used for carrying the glue solution, the feed liquor end of glue solution heater is connected with the glan head, the glan head with the play liquid end of gear pump is connected.

6. The low-pressure glue injection machine using LD-PE material as claimed in claim 5, characterized in that: piston assembly includes tensioning plate down, last tensioning plate and flexible glue seal, the flexible glue seal is formed by opening orientation opposite rubberizing cap and lower rubber cap integrated into one piece, it locates in the rubberizing cap to go up the tensioning plate cover, just it locates to go up the tensioning plate cover outside the needle, the tensioning plate cover is located down in the rubber cap down, still includes the T type lantern ring, T type lantern ring cover is located outside the needle, tensioning plate cover is located down outside the T type lantern ring.

7. The low-pressure glue injection machine using LD-PE material as claimed in claim 5, characterized in that: the high-resilience member is a high-resilience pressure spring or a high-resilience soft rubber member.

8. The low-pressure glue injection machine using LD-PE material as claimed in claim 7, characterized in that: the high-resilience soft rubber piece is formed by integrally forming a soft rubber sleeve body and two anti-cracking rings, and the two anti-cracking rings are respectively covered on two end faces of the soft rubber sleeve body.