CN106738715A - A kind of mould of automotive fan heater lower house - Google Patents

Abstract

The invention provides a mold for the lower casing of an automobile heater, which is aimed at complex product structures, many thin walls and deep depths, especially on the thin walls there are many small ribs and deep clamping posts, etc. Structural design, the mold structure is a two-plate hot runner, one mold and one cavity structure. The demoulding of the product is divided into two ways: the mold demoulding method of the cavity front mold and the mold core mold demoulding method. The demoulding method of the front mold cavity includes the side of the front mould. Oil cylinder first core-pulling demoulding method and inclined top synchronous demoulding method; core-later mold demoulding method includes product structure position side core-pulling demoulding method and oil cylinder driven ejector plate ejection complete demoulding method; structural design is reasonable and compact , Stable work, automatic production, effectively reduce the production cost of similar products, and improve work efficiency.

Description

A mold for the lower casing of an automobile heater

technical field

The invention relates to a mold for the lower shell of an automobile heater.

Background technique

In the structural design of the injection mold, the product structure is complex, the side wall is thin and the depth is deep, especially there are many small ribs and deep clamping posts on the thin wall, which leads to these ribs during injection molding. It is difficult to fill the end of the position and the post position, which seriously affects the selection of the gate position and the design of the gating system, which may eventually lead to "dead mold" in the molding production; there are many demoulding mechanism layouts on the inner and outer walls of the product The design and layout design of the gating system drastically increases the manufacturing cost of the mold. Therefore, under the premise of ensuring reliable product quality, it is particularly important to use a reasonable casting method and mold structure to complete the molding of this product within an appropriate cost range; the traditional mold design method based on experience requires a long design cycle , There are many uncertain factors, the cost of mold trial is high, and the quality is difficult to be guaranteed stably.

Contents of the invention

The technical problem to be solved by the present invention is to provide a mold for the lower casing of an automobile heater, which has reasonable design, compact structure, stable operation, safety and reliability, and is convenient to use.

In order to solve the above-mentioned existing technical problems, the present invention adopts the following scheme: a mold for the lower casing of an automobile heater, including a hot runner nozzle, a positioning ring, a junction box for temperature control wire slots, a panel, a hot runner plate, and a cavity plate , The first inclined guide column core-pulling slider assembly, core fixing plate, mold foot, travel switch seat, limit block, bottom plate, support head, thimble, square ejector rod with ribs, thimble push plate, first core insert Parts, clamping piece, second core insert, - core third insert, front mold ejector rod, front mold ejector push plate, front mold inclined top assembly, T-slot slider body, middle T-shaped Groove slider, T-shaped chute seat, second inclined guide post core-pulling slider assembly, third inclined guide post core-pulling slider assembly, fourth inclined guide post core-pulling slider assembly, travel switch wiring integrated socket, thimble Version limit switch, oil cylinder, long-side needle press plate, long-side needle, ejector plate oil cylinder, resin switch, thin-rib side core-pulling inclined top, parting surface.

The first slanted guide post core-pulling slider assembly 7 completes the side hole, side hole, and structural position of the product for demoulding side core-pulling; the second slanted guide post core-pulling slider assembly completes the product and completes the side hole and outer wall undercut The demoulding side core-pulling of the structural position at 3 places; the demoulding side core-pulling of the structural position at the fourth inclined guide post core-pulling slider assembly completed product completion side hole and the outer wall undercut; the third inclined guide post core-pulling The slider assembly is completed and the product is completed. The side hole and the structural position of the undercut of the outer wall are demoulded side core-pulling; the thin-rib side core-pulling inclined top is completed. The core is completed by the front mold inclined top assembly, and its auxiliary working parts include the front mold ejection rod, the front mold ejection push plate, and the resin shutter.

The oil cylinder, the T-slot slider body, the middle T-slot slider, the T-slot seat, the long-side needle press plate, and the long-side needle constitute the front mold side core-pulling mechanism for the upper side hole of the product. Under the guidance of the T-shaped chute seat, the middle T-slot slider is pulled by the oil cylinder, thereby pulling the T-slot slider body, the long-side needle pressing plate, and the long-side needle outward to realize the core-pulling function of the opposite side hole.

Beneficial effect:

The present invention adopts the above-mentioned technical solution to provide a mold for the lower casing of an automobile heater, aiming at the complex structure of the product, the side walls are much thinner and the depth is deeper, especially there are many small ribs and relatively small ribs on the thin walls. The structural design of the deep clamping column position adopts the mold structure of two-plate hot runner, one mold and one cavity structure. The demoulding of the product is divided into two ways: the mold demoulding method of the front mold of the cavity and the demoulding method of the rear mold of the core. Cavity demoulding includes front mold side oil cylinder first core-pulling demoulding method and inclined top synchronous demoulding method; mold core rear mold demoulding method includes product structure position side core-pulling demoulding method and cylinder drives ejector plate to eject complete demoulding method; The structure design is reasonable, the structure is compact, the work is stable, the production can be automated, and the production cost of similar products can be effectively reduced.

Description of drawings

Fig. 1 schematic diagram of front view of injection mold structure;

Figure 2 is a schematic diagram of the right view of the injection mold structure;

Fig. 3 schematic diagram of top view of injection mold structure;

Figure 4 is a schematic bottom view of the injection mold structure.

detailed description

The overall structure design of the mold is shown in Figure 1-4. The mold layout is one mold and one cavity. The basic structure adopts the hot runner two-plate mold structure. The mold base adopts LKMCI7585-A200-B150-C200 non-standard mold base; The nozzle directly points the gate pouring method, and the mold cooling method adopts the Φ8mm cooling water cooling method. The ejection of the product requires the ejection of the front mold and the ejection of the rear mold. The ejection of the front mold adopts the inclined ejection method of the front mold. The ejection adopts the oil cylinder + ejector rod ejection method.

In the mold, the structural parts include: positioning ring 2, panel 4, hot runner plate 5, cavity plate 6, core fixing plate 8, mold foot 9, bottom plate 12, thimble push plate 16, clamping plate 18, front mold Push out the push plate 22.

Parts involved in molding include: cavity plate 6, slider head of the first inclined guide post core-pulling slider assembly 7, head of thimble 14, head of square ejector pin 15 with ribs, first core insert 17, core The second insert 19, the third insert 20 of the core, the head of the inclined top in the front mold inclined top assembly 23, the slider head of the second inclined guide post core-pulling slider assembly 27, the third inclined guide post core-pulling slide The slider head of the block assembly 28; the slider head of the fourth inclined guide column core-pulling slider assembly 29, the long side needle 34, and the thin rib side core-pulling inclined top 37.

Functional components include hot runner nozzle 1, junction box for temperature control wire slot 3, first inclined guide column core-pulling slider assembly 7, travel switch seat 10, limit block 11, support head 13, thimble 14, rib square Ejector rod 15, front mold ejector rod 21, T-slot slider body 24, middle T-slot slider 25, T-slot seat 26, travel switch wiring integrated socket 30, thimble travel switch 31, oil cylinder 32, Long side needle press plate 33, thimble plate oil cylinder 35, resin shutter 36.

The first inclined guide post core-pulling slider assembly 7 completes the product side hole 1, side hole 2, and the demoulding side core of the structural position; the second inclined guide post core-pulling slider assembly 27 completes the product and completes the side hole 3 and outer wall The demoulding side core-pulling of the structural position at the undercut 3; the demoulding side core-pulling of the structural position at the structural position of the side hole 1 and the outer wall undercut 1 of the fourth inclined guide column core-pulling slider assembly 29; the third The oblique guide column core-pulling slider assembly 28 completes the demoulding side core-pulling of the structural position at the side hole 2 and the outer wall undercut 2; the thin rib side core-pulling inclined top 37 completes the demoulding and pumping of the product side hole 5 Core; the demoulding side core of the side hole 3 is completed by the front mold inclined top assembly 23, and its auxiliary working parts include the front mold ejection pull rod 21, the front mold ejection push plate 22, and the resin shutter 36. Oil cylinder 32, T-slot slider body 24, middle T-slot slider 25, T-slot seat 26, long side needle press plate 33, and long side needle 34 constitute the front mold side core-pulling of the upper hole 4 of the product The demoulding mechanism, under the guidance of the T-shaped chute seat 26, pulls the middle T-shaped groove slider 25 by the oil cylinder 32, thereby pulling the T-shaped groove slider body 24, the long-side needle press plate 33, and the long-side needle 34 to Outward extraction realizes the core-pulling function of the side hole 4.

The junction box 3 of the temperature-controlled wire slot is mainly used to control the temperature of the hot runner nozzle 1; the thimble plate oil cylinder 35 controls the push-out and reset action of the thimble push plate 16, and its movement stroke is determined by the travel switch seat 10 and the travel switch wiring integrated socket 30 , thimble version travel switch 31 combined to form the controller control is completed.

The parts of the product ejection mechanism on the moving mold side include: stroke switch seat 10, limit block 11, support head 13, thimble 14, square ejector rod 15 with ribs, thimble push plate 16, thimble plate oil cylinder 35, and thimble travel switch 31; The final ejection of the product is driven by the thimble plate cylinder 35 to drive the thimble push plate 16, thereby pushing the thimble 14 and the square ejector rod 15 with ribs to complete the final ejection of the product. The square ejector rod 15 with ribs is mainly set on the thin ribs on the side wall of the product place.

In actual work, its motion working principle is as follows:

1) After the injection molding is completed, before the mold is opened at the PL parting surface shown in Figure 1, the oil cylinder 32 moves first, and the long-side needle 34 is pulled out to realize the demoulding and core-pulling function of the opposite side hole 4.

2) Then the mold is opened, and the movable mold part moves downward. When opening, the product cavity surface is demolded first, and the product stays on the movable mold core; at the same time, the resin shutter (installed on the core fixing plate 8 ) will move downwards with the movable mold part by pulling the front mold ejection rod 21, thereby driving the front mold ejection push plate 22 to move downward synchronously, thereby pushing the front mold inclined top assembly 23 to complete the removal of the side hole 3 Die; similarly, there are sliders of the first inclined guide pillar core-pulling slider assembly 7, sliders of the second inclined guide pillar core-pulling slider assembly 27, and fourth inclined guide pillar core-pulling slider assemblies that act synchronously with this The slider of 29 and the slider of the third inclined guide post core-pulling slider assembly 28 complete the side core-pulling at their corresponding positions.

3) After the mold opening is completed, the next step is the complete ejection and demoulding of the product. The ejector pin 14, the rib square ejector 15 and the thin rib side core-pulling inclined ejector 37 are pushed by the ejector plate cylinder 35 to complete the ejection of the product. mold.

The present invention overcomes the difficulties of complex product structure, many thin walls and deep depth, and aims at complex product structure, many thin walls and deep depth, especially there are many small ribs and relatively deep ribs on the thin wall. The structural design of the deep clamping column position adopts the mold structure of two-plate hot runner, one mold and one cavity structure. The demoulding of the product is divided into two ways: the mold demoulding method of the front mold of the cavity and the demoulding method of the rear mold of the core. Cavity demoulding includes front mold side cylinder first core-pulling demoulding method and inclined top synchronous demoulding method, which can automate production, effectively reduce the production cost of similar products, and improve work efficiency.

The specific embodiments described herein are only examples to illustrate the spirit of the present invention, and those skilled in the art to which the present invention belongs can make various modifications or supplements to the described specific embodiments or replace them in similar ways, but It does not depart from the spirit of the invention or go beyond the scope defined by the appended claims.

Claims (3)

1. a kind of mould of automotive fan heater lower house, including hot runner gate, centring ring, temperature control wire casing terminal box, panel, hot-fluid Guidance tape, cavity plate, the first Angle Pin core-pulling slide block component, core fixing plate, support block, travel switch seat, limited block, base plate, support Head, thimble, the square push rod in muscle position, thimble push plate, the mold insert of core first, locked mode piece, the mold insert of core second, the mold insert of-core the 3rd, Front mould ejection pull bar, front mould ejection push pedal, front mould Slanted ejecting component, T-slot slide body, middle T-slot sliding block, T-shaped sliding chute seat, the Two Angle Pin core-pulling slide block components, the 3rd Angle Pin core-pulling slide block component, the 4th Angle Pin core-pulling slide block component, travel switch connect It is line integrated socket, thimble version travel switch, oil cylinder, side type pin pressing plate long, type pin in side long, ejector retainner plate oil cylinder, resin shutter, thin Muscle side core-pulling oblique top, die joint.

2. the mould of a kind of automotive fan heater lower house according to claim 1, it is characterised in that：First Angle Pin Core-pulling slide block component 7 completes product side opening, side opening, the demoulding side core-pulling of structure position；Second Angle Pin core-pulling slide block component is completed The demoulding side core-pulling of the structure position at product completion side hole, outer wall back-off 3；4th Angle Pin core-pulling slide block component completes product The demoulding side core-pulling of the structure position at completion side hole, outer wall back-off；3rd Angle Pin core-pulling slide block component completes product and completes The demoulding side core-pulling of the structure position at side hole, outer wall back-off；Thin muscle side core-pulling oblique top completes the demoulding core pulling at product side opening； The demoulding side core-pulling in side hole is completed by front mould Slanted ejecting component, and its back work part includes front mould ejection pull bar, front mould ejection Push pedal, resin shutter.

3. the mould of a kind of automotive fan heater lower house according to claim 1, it is characterised in that：The oil cylinder, T-slot Take out the front mould side that slide body, middle T-slot sliding block, T-shaped sliding chute seat, side type pin pressing plate long, type pin in side long constitute product upper-side hole Core mould emptier, under the guiding of T-shaped sliding chute seat, by oil cylinder pull in the middle of T-slot sliding block so that pull T-slot slide body and Side type pin pressing plate long, type pin in side long outwards extract the core-pulling function for realizing contralateral exposure out.