CN210100596U - Demolding clamp for injection molding sleeve - Google Patents

Abstract

The utility model discloses a sheathed tube demolding anchor clamps of moulding plastics installs the arm tail end of installing in the finished product ejection of compact of injection moulding device, and this demolding anchor clamps include that rigidity bottom plate and the last more than two clamp covers that connect, and any clamp cover is equipped with the appearance chamber that corresponds the sleeve pipe appearance of moulding plastics, and holds the relative sleeve pipe zero friction slip of moulding plastics of inner wall in chamber, and every clamp cover is equipped with in the lateral wall and link up to the suction hole that holds the chamber, and all suction holes pass through the controlled air pump of taking out of trachea tandem to minute chronogenesis. By applying the mold stripping clamp of the utility model, the negative pressure in the cavity is generated by the special treatment of the jacket of the inner wall of the cavity and the air suction, the positioning and grabbing of the injection molding sleeve are realized, the accidental damage of the appearance of the injection molding sleeve in the transportation process of the mechanical arm is avoided, and the finished product yield of the injection molding sleeve is practically improved; meanwhile, the distributed arrangement of the jacket also provides convenience for finished product receiving connection and defective product tracking.

Description

Demolding clamp for injection molding sleeve

Technical Field

The utility model relates to an injection molding machine peripheral hardware improvement especially relates to a to being applied to the sheathed tube demolding anchor clamps of moulding plastics.

Background

The injection molding process is an optimal process capable of meeting the processing and production of various non-standard special-shaped parts, and has the remarkable advantages of one-step molding and large-scale production compared with the traditional cutting and punching and milling operation mode. Of course, to improve productivity, particularly for injection molded sleeves of relatively small gauge size, such products are typically produced by one-mold multi-cavity injection molding.

In the traditional one-mold multi-cavity injection molding process, the product is usually taken directly along with the rubber channel and is taken out of the mold, and the finished product can be discharged only by manual sorting and rubber cutting. And direct demolding ejection of compact often the product is disorderly and has no seal, can't track the loss of location die cavity and overhaul the mould in time.

Among the many injection molded products is a cylindrical sleeve having a length of 3-5cm, an outer diameter of about 1.2cm and a wall thickness of approximately 1mm, with one end of the sleeve being closed and the other end being open. And the glue opening is designed to be the end surface of the opening. The injection molding sleeve has the characteristics that the product has a complete and flawless appearance and a smooth surface, and the outer surface of the product cannot be guaranteed not to be damaged even if the product is cooled and then is demoulded in a clamping mode, so that the yield of the product is difficult to improve. The production efficiency of the product is contradictory to the waiting for complete cooling, and the risk of the surface of the sleeve being pressed or damaged by collision also exists in the process of simply pushing the product from the die cavity to the outside and dropping the product in the receiving box.

Disclosure of Invention

In view of the above-mentioned prior art can't satisfy the defect that specific injection moulding product demolding required, the utility model aims at providing a sheathed tube demolding anchor clamps moulds plastics, solves the sheathed tube harmless demolding problem of many caves injection moulding.

The utility model provides a technical solution of above-mentioned purpose is, a sheathed tube demolding anchor clamps moulds plastics, attaches the arm tail end of installing in the finished product ejection of compact of injection moulding equipment, its characterized in that: the demolding clamp comprises a rigid bottom plate and more than two clamping sleeves connected to the rigid bottom plate, wherein any clamping sleeve is provided with a containing cavity corresponding to the appearance of the injection molding casing pipe, the inner wall of the containing cavity slides in zero friction relative to the injection molding casing pipe, each clamping sleeve is provided with an air suction hole penetrating to the containing cavity in the side wall, and all the air suction holes are connected to an air pump controlled in time sequence through air pipes in a junction mode.

Furthermore, 8-16 jackets are arranged on the bottom plate, 4 jackets are arranged in a group and are distributed and positioned in a square shape, and each jacket is independently controlled by the pumping and discharging pneumatic action of the air pump.

Furthermore, corresponding to each jacket, a guide part is arranged at the port of the containing cavity, and the inner diameter of the guide part gradually shrinks along the axial direction of the inward sleeve.

Furthermore, the air suction holes are double holes which are arranged along the axial direction of the sleeve and are in butt joint with double air pipes, and all the air pipes are connected to the air pump through more than one stage of parallel pipe joints.

Furthermore, the demolding clamp follows the mechanical arm to move back and forth between the mold cavity and the material receiving box, and the clamping sleeves of the demolding clamp are aligned with the material distributing grids of the material receiving box one by one.

Furthermore, a pneumatic overturning unit is arranged between the mechanical arm and the rigid bottom plate of the demolding clamp, and the pneumatic overturning unit is controlled by a driving signal to drive the demolding clamp to switch the operation orientation between the mold cavity and the material receiving box.

Use the utility model discloses a demolding anchor clamps possesses substantive characteristics and progressive: the negative pressure in the cavity is generated by the jacket specially treated on the inner wall of the cavity and the air suction, so that the positioning and grabbing of the injection molding sleeve are realized, the accidental damage of the appearance of the injection molding sleeve in the transportation process of the mechanical arm is avoided, and the finished product yield of the injection molding sleeve is practically improved; meanwhile, the distributed arrangement of the jacket also provides convenience for finished product receiving connection and defective product tracking.

Drawings

Fig. 1 is a schematic structural view of the mold stripping clamp of the injection molding sleeve of the present invention.

Detailed Description

The following detailed description is made of specific embodiments of the present invention with reference to the accompanying drawings, so as to make the technical solution of the present invention easier to understand and master.

To the aforesaid high requirement of getting the piece of the special type sleeve pipe product of moulding plastics that moves back the mould, the utility model discloses designer's summary experience, innovation have provided a sheathed tube demolding anchor clamps of moulding plastics, solve many caves injection moulding's harmless demolding problem from this.

As shown in fig. 1, it is a schematic structural diagram of the mold stripping clamp for the injection molding sleeve of the present invention. As can be seen from the figure, the demolding clamp is attached to the tail end of a mechanical arm for discharging finished products of the injection molding equipment (the mechanical arm body is complex in structure and does not relate to the core of the application, so that the figure is omitted, and the outline is described later), and is mainly used for reliably clamping injection molding sleeve products after being subjected to demolding automatically under the control of the mechanical arm, releasing manual work and improving the product molding quality and the production efficiency. From the summarized structural characteristics, the demolding clamp comprises a rigid bottom plate 1 and more than two clamping sleeves 2 connected to the rigid bottom plate, wherein any clamping sleeve 2 is provided with a containing cavity 21 corresponding to the appearance of the injection molding sleeve, the inner wall of the containing cavity 21 is processed into a smooth cambered surface, namely, the smooth cambered surface slides in zero friction relative to the injection molding sleeve, and therefore friction damage caused when the clamping sleeve slides and is sleeved on the injection molding sleeve is eliminated. Each jacket 2 is provided with an air suction hole 22 on the side wall, which penetrates through the cavity, and all the air suction holes are connected to an air pump controlled by time sequence through an air pipe 3. It should be noted that the control of the air pump time-division sequential output here means that the air pump performs the cyclic action of air suction and air discharge through the air pipe facing the cavity of the jacket, and the rhythm of action switching is determined according to the actual working condition of the injection molding machine in response to the sensor signal. Only after the injection mold opening is completed in the mold cavity, the mold-stripping clamp is sleeved on the injection molding sleeve, and then air is pumped to adsorb the product; and when the mold stripping clamp aligns to the material receiving box, the air discharging and blanking are carried out.

In the illustrated embodiment, four sets of the jackets are disposed on the bottom plate 1, and in terms of grouping, each set of the jackets has 4 square-shaped distribution, and each set of the jackets is independently controlled by the pumping and discharging air of the air pump. The corresponding mold in this embodiment is a multi-cavity injection mold with four sets of 16 injection sleeves. Of course, the demolding clamp can also implement corresponding increase and decrease of the number and the air pipe attachment according to the difference of the number and the positions of the mold cavities and the change of the shape of the injection molding product. In this embodiment, the air suction holes are double holes arranged along the axial direction of the casing, and the double holes are butted with double air pipes, and all the air pipes are connected to the air pump through parallel pipe joints of more than one stage. The double-hole design aims to ensure that the sleeve is stably positioned in the jacket, and axial and radial displacement caused by lack of friction force and single-point adsorption is avoided.

In order to facilitate the alignment sleeve connection of the mold stripping clamp after the product is opened, corresponding to each jacket, a port of the cavity 21 is provided with a guide part 23, and the inner diameter of the guide part 23 gradually shrinks along the axial direction of the inward sleeve. Therefore, when the position of the jacket is initially heavier than the position of the formed sleeve, the sleeve cannot be damaged by punching the end face of the jacket due to the two opposite positions.

From the displacement and action of the demolding clamp, the mechanical arm moves to and fro between the mold cavity and the material receiving box in the injection molding machine along with the movement of the mechanical arm, a pneumatic overturning unit is arranged between the mechanical arm and the rigid bottom plate of the demolding clamp, and the pneumatic overturning unit is controlled by a driving signal to drive the demolding clamp to switch the operation orientation between the mold cavity and the material receiving box. For example, when the mold cavity is opened, the mold stripping clamp is conveyed between the two molds by the mechanical arm, overturned to feed towards a product, sleeved, adsorbed by the sleeve and withdrawn; and when the mechanical arm moves to the material receiving box, the mold stripping fixture is turned over to enable the sleeve products to face downwards, so that the sleeve products can freely fall into the material receiving box after the negative pressure is relieved and the sleeve products are aligned to fall into the material receiving box. Of course, for a one-mold multi-cavity injection molding finished product, all the clamping sleeves of the mold stripping clamp are aligned with the material distribution grids of the material receiving box one by one. Namely, the sleeve product obtained by each acupuncture point can accurately track the source, so that the mold cavity is easy to track and repair and replace quickly under the condition of generating defective products.

In summary, the description of the embodiment with the attached drawings shows that, by applying the mold stripping clamp of the utility model, the negative pressure in the cavity is generated by the special treatment of the inner wall of the cavity through the jacket and the air suction, the positioning and grabbing of the injection molding sleeve are realized, the accidental damage of the appearance of the injection molding sleeve in the transportation process of the mechanical arm is avoided, and the finished product yield of the injection molding sleeve is practically improved; meanwhile, the distributed arrangement of the jacket also provides convenience for finished product receiving connection and defective product tracking.

The utility model has a plurality of implementation modes, and all technical schemes formed by adopting equivalent transformation or equivalent transformation all fall within the protection scope of the utility model.

Claims (6)

1. The utility model provides a sheathed tube demolding anchor clamps moulds plastics, attaches to the arm tail end of the finished product ejection of compact of injection moulding equipment which characterized in that: the demolding clamp comprises a rigid bottom plate and more than two clamping sleeves connected to the rigid bottom plate, wherein any clamping sleeve is provided with a containing cavity corresponding to the appearance of the injection molding casing pipe, the inner wall of the containing cavity slides in zero friction relative to the injection molding casing pipe, each clamping sleeve is provided with an air suction hole penetrating to the containing cavity in the side wall, and all the air suction holes are connected to an air pump controlled in time sequence through air pipes in a junction mode.

2. The demolding clamp for an injection molded sleeve according to claim 1, wherein: 8-16 jackets are arranged on the bottom plate, 4 jackets are arranged in a group and are distributed and positioned in a square shape, and each jacket is independently controlled by the pumping and discharging pneumatic action of the air pump.

3. The demolding clamp for an injection molded sleeve according to claim 1, wherein: corresponding to each jacket, the port of the accommodating cavity is provided with a guide part, and the inner diameter of the guide part gradually shrinks along the axial direction of the inward sleeve.

4. The demolding clamp for an injection molded sleeve according to claim 1, wherein: the air suction holes are double holes which are arranged along the axial direction of the sleeve and are in butt joint with double air pipes, and all the air pipes are connected to the air pump through parallel pipe joints more than one stage.

5. The demolding clamp for an injection molded sleeve according to claim 1, wherein: the demolding clamp follows the mechanical arm to move back and forth between the mold cavity and the material receiving box, and the clamping sleeves of the demolding clamp are aligned with the material distributing grids of the material receiving box one by one.

6. An injection molding sleeve stripping clamp according to claim 5, wherein: and a pneumatic overturning unit is arranged between the mechanical arm and the rigid bottom plate of the demolding clamp, and is controlled by a driving signal to drive the demolding clamp to switch the operation orientation between the mold cavity and the material receiving box.

Images