Shearing mechanism in wrapping cloth injection mold

Abstract

The utility model relates to the technical field of shearing mechanisms, in particular to a shearing mechanism in a wrapping cloth injection mold, which comprises an upper mold base, two electric cylinders I and two electric cylinders II. During working, the upper mold base and the lower mold base can form a complete mold cavity after mold closing, one end of the piston rod of the first electric cylinder extends to drive the two sliding bases to move downwards until the bottoms of the sliding bases make contact with the bottom wall of the flat groove, at the moment, the sliding bases block the flat groove, and meanwhile the two semicircular grooves are spliced into a circular groove with the same inner diameter as an injection molding channel; heat-melted plastic is injected into a mold cavity through an external injection molding machine at high pressure from an injection molding channel, after injection molding is completed and before mold opening is conducted, one end of a piston rod of a first electric cylinder is shortened to drive a sliding base to move upwards, one end of a piston rod of a second electric cylinder extends to drive two movable plates to be close to each other, and a cutter and a cutting base are close to each other and matched to cut off a sprue. In-mold shearing of the wrapping cloth injection mold is achieved, sprue materials after mold opening and hardening do not need to be sheared, the situation that the sprue face is uneven is avoided, and the quality of injection molding parts is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to shearing mechanism technical field, concretely is a kind of cloth injection mold in -mold shearing mechanism. BACKGROUND

[0002] Cloth injection molding is also called film injection molding, which is a method of industrial product production molding, usually used for rubber injection molding and plastic injection molding, the existing cloth injection mold structure will melt the plastic by injection molding machine high pressure injection into mold cavity during working, and the shaped product is obtained after cooling and solidification;

[0003] At present, when the traditional cloth injection mold is used, the injection molding part and the gate need to be sheared and separated after injection molding, the existing shearing treatment method is to cut off the gate by manual use of scissors when the mold is opened, since the material has hardened at this time, the sheared gate surface is not flat and beautiful, thereby affecting the quality of injection molding part, therefore, a cloth injection mold in-mold shearing mechanism is proposed. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a cloth injection mold in-mold shearing mechanism to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a cloth injection mold in-mold shearing mechanism, comprising an upper die holder, two electric cylinders one and two electric cylinders two, a lower die holder is arranged below the upper die holder, an injection channel is arranged on the upper surface of the upper die holder, a flat groove is arranged on the lower part of the outer wall of the upper die holder, two inclined grooves are symmetrically arranged on the upper surface of the upper die holder, the flat groove, the inclined groove and the injection channel are in communication with each other, a sliding seat is slidably connected to the inner side wall of the inclined groove, a semicircular groove is arranged on the opposite side of each sliding seat, the inner diameter of the semicircular groove is the same as the inner diameter of the injection channel, the piston rod of the electric cylinder one is fixedly connected to the upper surface of the sliding seat, the piston rod of the electric cylinder two is fixedly connected with a movable plate, a cutter is fixedly arranged on one side of the movable plate close to the injection channel, and a cutter holder is fixedly arranged on the other side of the movable plate close to the injection channel.

[0006] As a further preferred embodiment of the present technical solution: two fixed frames are symmetrically fixedly connected to the upper surface of the upper die holder, and the top of the electric cylinder one is mounted to the inner side wall of the fixed frame.

[0007] As a further preferred embodiment of the present technical solution: a control panel is mounted on the front side of the right side wall of the upper die holder, and the electrical output end of the control panel is electrically connected with the electrical input end of the electric cylinder one and the electric cylinder two through wires.

[0008] As a further preferred of the technical solution: the outer side wall of the upper die seat is fixedly connected with a support plate on both sides, and the bottom of the electric cylinder two is installed on the upper surface of the support plate.

[0009] As a further preferred of the technical solution: the outer side wall of the movable plate is fixedly connected with two positioning blocks in a symmetrical manner.

[0010] As a further preferred of the technical solution: the inner bottom wall of the flat groove is fixedly connected with two fixed blocks in a symmetrical manner on both sides, the outer side wall of the fixed block is fixedly connected with a positioning rod, and the positioning rod is in sliding connection with the positioning block.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] When the utility model works, the upper die seat and the lower die seat can form a complete mold cavity after clamping, the piston rod of the electric cylinder one is elongated to drive the two sliding seats to move downward until the bottom of the sliding seat contacts the flat groove bottom wall, at this time, the sliding seat blocks the flat groove, and the two semicircular grooves are spliced into a circular groove with the same inner diameter as the injection channel, the heated and melted plastic is injected into the mold cavity by the injection channel under high pressure with the help of the external injection machine, before opening the mold after injection, the piston rod of the electric cylinder one is shortened to drive the sliding seat to move upward, the piston rod of the electric cylinder two is elongated to drive the two movable plates to move close to each other, the cutter and the cutter seat are close to each other and matched to cut off the gate, the in-mold shearing of the cloth wrapping injection mold is realized, the gate material hardened after shearing is not needed, the uneven gate surface is avoided, and the quality of the injection molded part is guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a front view structural schematic diagram of the utility model;

[0014] Figure 2 It is a sectional view structural schematic diagram of the utility model;

[0015] Figure 3 It is a sectional view structural schematic diagram of the upper die seat in a certain view of the utility model;

[0016] Figure 4 It is an enlarged view of the A area structure of the utility model; Figure 3

[0017] Figure 5 It is a structural schematic diagram of the sliding seat and the semicircular groove in the utility model;

[0018] Figure 6 It is a structural schematic diagram of the cutter and the cutter seat in the utility model;

[0019] Figure 7 It is a sectional view structural schematic diagram of the upper die seat in another view of the utility model.

[0020] In the drawing:​

[0021] 1, upper die holder; 2, lower die holder; 3, injection channel; 4, flat groove; 5, inclined groove; 6, slide; 7, semicircular groove; 8, electric cylinder 1; 9, electric cylinder 2; 10, movable plate; 11, cutter; 12, cutter holder; 13, fixed frame; 14, control panel; 15, support plate; 16, positioning block; 17, fixed block; 18, positioning rod. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. The examples of the embodiments are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation on the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0023] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "set" should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the communication inside two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0024] Please refer to Figures 1-7The utility model provides a kind of technical scheme: a cloth injection mold in -mold shearing mechanism, including upper die holder 1, two electric cylinders one 8 and two electric cylinders two 9, the lower of upper die holder 1 is equipped with lower die holder 2, the upper surface of upper die holder 1 is equipped with injection channel 3, the lower part of the outer lateral wall of upper die holder 1 is equipped with flat groove 4, the upper surface of upper die holder 1 is symmetrically equipped with two inclined grooves 5, flat groove 4, inclined groove 5 and injection channel 3 are interconnected, the inner lateral wall of inclined groove 5 is slidably connected with slide 6, the opposite side of two slides 6 is equipped with semicircular groove 7, the inner diameter of semicircular groove 7 is same with the inner diameter of injection channel 3, the piston rod one end of electric cylinder one 8 is fixedly connected to the upper surface of slide 6, the piston rod one end of electric cylinder two 9 is fixedly connected with movable plate 10, one movable plate 10 is fixedly equipped with cutter 11 on the side close to injection channel 3, and the other movable plate 10 is fixedly equipped with cutting seat 12 on the side close to injection channel 3;Upper die holder 1 and lower die holder 2 can form complete mould cavity after clamping, the piston rod one end of electric cylinder one 8 is elongated to drive two slides 6 to move down until the bottom of slide 6 contacts flat groove 4 bottom wall, at this time, slide 6 will flat groove 4 block up while two semicircular grooves 7 are spliced into the circular groove with the same inner diameter of injection channel 3, heated and melted plastic is injected into mould cavity by injection channel 3 high pressure with the aid of external injection molding machine, before opening mould after injection molding is completed, the piston rod one end of electric cylinder one 8 is shortened to drive slide 6 to move up, the piston rod one end of electric cylinder two 9 is elongated to drive two movable plates 10 to be close to each other, so that cutter 11 and cutting seat 12 are close to each other and cooperate to cut off the sprue, realize the in-mold shearing of cloth injection mold, without shearing sprue material after opening mould hardening, avoid the situation that sprue surface is not flat.

[0025] In the embodiment, specifically: the upper surface of upper die holder 1 is fixedly connected with two fixed frames 13 symmetrically, and the top of electric cylinder one 8 is installed on the inner lateral wall of fixed frame 13.

[0026] In the embodiment, specifically: the front side of the right side wall of upper die holder 1 is provided with a control panel 14, and the electrically-conductive output ends of the control panel 14 are electrically connected with the electrically-conductive input ends of electric cylinder one 8 and electric cylinder two 9 through wires.

[0027] In the embodiment, specifically: the outer lateral wall of upper die holder 1 is fixedly connected with a support plate 15 on both sides, and the bottom of electric cylinder two 9 is installed on the upper surface of the support plate 15.

[0028] In the embodiment, specifically: the outer lateral wall of the movable plate 10 is fixedly connected with two positioning blocks 16 symmetrically.

[0029] In the embodiment, specifically: the inner bottom wall of the flat groove 4 is symmetrically fixed and connected with two fixed blocks 17 on both sides, the outer side wall of the fixed block 17 is fixedly connected with a positioning rod 18, and the positioning rod 18 is slidably connected with the positioning block 16; the positioning rod 18 can guide the positioning block 16 and the movable plate 10, thereby improving the precision of the butt joint of the cutter 11 and the cutter seat 12.

[0030] The working principle of the utility model is: after the upper die seat 1 and the lower die seat 2 are combined, a complete die cavity is formed, the piston rod of the electric cylinder 1 is elongated to drive the two sliding seats 6 to move downwards until the bottom of the sliding seat 6 contacts the bottom wall of the flat groove 4, at this time, the sliding seat 6 blocks the flat groove 4 and the two semicircular grooves 7 are spliced into a circular groove with the same inner diameter as the injection channel 3, the heated and melted plastic is injected into the die cavity by the external injection molding machine, before the mold is opened after the injection is completed, the piston rod of the electric cylinder 1 is shortened to drive the sliding seat 6 to move upwards, the piston rod of the electric cylinder 2 is elongated to drive the two movable plates 10 to move close to each other, the cutter 11 and the cutter seat 12 are close to each other and matched to cut off the gate, the in-mold shearing of the cloth wrapping injection mold is realized, the gate material after mold hardening does not need to be cut, the uneven gate surface is avoided, and the quality of the injection molded part is ensured.

[0031] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A bag fabric in-mold cutting mechanism characterized by: The utility model relates to a moulding machine, including upper die holder (1), two electric cylinders one (8) and two electric cylinders two (9), the lower side of upper die holder (1) is equipped with lower die holder (2), the upper surface of upper die holder (1) is seted up injection channel (3), the lower part of the lateral wall of upper die holder (1) is seted up flat groove (4), the upper surface of upper die holder (1) is seted up two inclined grooves (5) symmetrically, the flat groove (4), the inclined groove (5) with injection channel (3) are interconnected, the inner side wall of inclined groove (5) is connected with slide (6) slidingly, the opposite side of two slide (6) is seted up semicircular groove (7) all, the inner diameter of semicircular groove (7) is same with the inner diameter of injection channel (3), the piston rod one end of electric cylinder one (8) is fixedly connected in the upper surface of slide (6), the piston rod one end of electric cylinder two (9) is fixedly connected with movable plate (10), one movable plate (10) is fixedly provided with cutter (11) near the one side of injection channel (3), and another movable plate (10) is fixedly provided with cutting seat (12) near the one side of injection channel (3).

2. The tape inlay in-mold trimming mechanism of claim 1, wherein: The upper surface of upper die holder (1) is fixedly connected with two fixed frames (13) symmetrically, and the top of electric cylinder one (8) is installed in the inner side wall of fixed frame (13).

3. The sleeve inlay in-mold shear mechanism of claim 2, wherein: The front side of the right side wall of upper die holder (1) is provided with control panel (14), and the electrical output end of control panel (14) is electrically connected with the electrical input end of electric cylinder one (8) and electric cylinder two (9) through wire respectively.

4. The bag in place in-line shear mechanism of claim 3, wherein: The outer side wall of upper die holder (1) is fixedly connected with support plate (15) on both sides, and the bottom of electric cylinder two (9) is installed on the upper surface of support plate (15).

5. The bag-in-bottle in-mold shear mechanism of claim 4, wherein: The outer side wall of movable plate (10) is fixedly connected with two positioning blocks (16) symmetrically.

6. The bag-in-bottle in-mold shear mechanism of claim 5, wherein: The inside bottom wall of flat groove (4) is fixedly connected with two fixed blocks (17) symmetrically on both sides, the outer side wall of fixed block (17) is fixedly connected with positioning rod (18), and positioning rod (18) is connected with positioning block (16) slidingly.

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