CN2425763Y - Injection molding machine mold correction positioning ring - Google Patents

Abstract

A mould correcting and positioning ring for injection moulding machine is composed of a machine frame, a mould locked by said machine frame, a fixing ring with internal and external concentric rings, and a central hole on the central end of said fixing ring.

Description

Injection molding machine mold correction positioning ring

The utility model relates to an injection molding machine, in particular to a mold of the injection molding machine.

In the operation of injection molds of traditional injection molding machines, the most troublesome thing in the industry is the center alignment assembly operation of the whole set of molds. Because the calibration operation control of the axis line is not easy to correct visually, most of them are almost the same. Otherwise, it is necessary to use related auxiliary accessories for calibration, so that the molding mold can be assembled on the relative axis line, that is, as shown in Figure 6, the pouring port 31 of the injection mold 30 is aligned with the injection mold. On the center line of the outlet pipe 32 of the molding machine, the nozzle of the outlet pipe 32 can be correctly inserted into the filling port 31 to perform the injection operation. Since the end of the filling port 31 of the injection mold 30 is generally The smoothness of the material guide is usually set in a tapered shape, and the end of the discharge pipe 32 that matches the injection material is also provided with a symmetrical tapered end shape, so that the port of the discharge pipe 32 can be aligned coaxially, and then directly inserted into the pouring port 31, and then carry out the injection molding operation. Therefore, if the assembly position of the mold 30 is not correct, that is, not on the axis line, it will inevitably cause the discharge pipe 32 to be incorrectly inserted into the filling port 31, and because the injection pressure is relatively high. If it is too large, the injection gap will cause serious overflow of the injected plastic, which is the biggest problem in the operation and use of general injection molding machines. The occurrence of overflow material not only increases the cost of materials, but also causes the loss of recycled materials. Therefore, the calibration and assembly of the mold 30 in the injection molding operation has become a very technical and very important task in the industry. For the assembly and correction of the traditional mold 30, although various auxiliary tools for correction have been developed on the market, they are not very practical because of their extremely complicated configuration, high purchase cost, and the need to pay attention to operating techniques. Most injection mold makers still use the traditional rule of thumb and adjust the measurement with the vernier. Although this method does not cost the purchase of equipment, it is not practical because it wastes a lot of man-hours. Therefore, in recent years, some manufacturers have directly requested the development of the mold. At the center of the end face of the mold, a protruding positioning convex ring is preset according to the size of the through-hole hole set on the frame. It can be directly inserted into the end hole of the frame to achieve alignment. However, such molds are not only expensive to manufacture, but also because of the protruding ring surface of the end surface, the mold cannot be neatly folded and stored. stacking management, but it is relatively difficult to form the actual stacking group and storage; in addition, there is no certain standard for the design of the end hole size of injection molding machines of different sizes, energies and types, between 90 and 120MM, so when When the diameters of the end holes are different, the fixed convex ring design of the mold cannot achieve the convenient purpose of relative positioning and insertion, and this design also makes it impossible for a pair of molds to be suitable for injection of different injection molding machines at the same time, so in In fact, there are not many molds with fixed convex rings. Therefore, it is necessary to develop an auxiliary device that can be easily aligned and used for assembly of injection molds for easy calibration and assembly.

The purpose of the utility model is to provide an injection molding machine mold correction positioning ring which can easily correct the center positioning and assembly of the mold and is suitable for different injection molding machine molds.

In order to achieve the above purpose, the utility model provides a mold correction positioning ring for an injection molding machine, which includes a frame of the injection molding machine and a mold with a lock; it is characterized in that it also includes an inner and outer concentric ring The fixed ring, the outer ring of the fixed ring is equivalent to the diameter of the central end hole of the frame, so that the fixed ring is inserted into the frame for positioning and assembly, and a U-shaped central tube is inserted and assembled in the center of the fixed ring, and the central tube A central hole is left in the center of the bottom end surface, and several concentric circle marking surfaces are provided on the outside of the central hole ring. When the central tube is inserted into the fixed ring, the bottom end surface of the central tube is directly against the pouring of the mold. mouth end.

The mold correction positioning ring of the injection molding machine is characterized in that several through holes for inspection are reserved on the connecting end faces of the inner and outer rings of the fixed ring.

The mold correction positioning ring of the injection molding machine is characterized in that: the ring surface of the central tube is equally divided into several opening grooves from the free end.

The mold correction positioning ring of the injection molding machine is characterized in that: the materials of the fixing ring and the central tube are transparent plastic materials.

After adopting the above-mentioned structure, the injection molding machine mold correction positioning ring of the present invention uses a simple transparent fixed ring and a central pipe fitting to be inserted into each other, and the diameter of the outer end surface of the fixed ring is set to match the frame end hole of the injection machine. In the same way, the fixed ring and the end hole of the frame can be easily inserted and positioned, and the corrected center tube can be easily inserted and slid, and it can be calibrated with the round hole marking surface on the end face of the center tube, so that the mold of the injection molding machine, It is very convenient to assemble and correct the central axis of the discharge pipe, etc., so that the injection port of the mold can be easily aligned with the nozzle of the discharge pipe. Therefore, the utility model is very safe, economical and practical in terms of operation and actual cost purchase.

Below, the positioning ring for mold correction of the injection molding machine of the present invention will be further described in detail in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is a three-dimensional exploded view of the positioning ring for mold correction of the injection molding machine of the present invention.

Fig. 2 is an assembly perspective view of the positioning ring for mold correction of the injection molding machine of the present invention.

Fig. 3 is a reference schematic diagram of the utility model in use.

Fig. 4 is another reference schematic diagram of the utility model in use.

Fig. 5 is a reference schematic diagram of another usage state of the present utility model.

Fig. 6 is a reference schematic diagram of the mold alignment operation of a conventional injection molding machine.

The mold correction positioning ring of the injection molding machine of the present invention, as shown in Figure 1-4, the structure of the entire correction positioning ring is mainly a set of fixed rings 10 with concentric ring surfaces, and naturally forms a ring of tubes, Its outer ring diameter is just identical with the end hole 21 that the center of the fixed frame 20 of the injection machine runs through. When used for calibration, the positioning ring can be directly inserted into the end hole 21, and a central tube 11 for calibration with a hollow U-shaped tubular design is provided. A central hole 12 of 2 mm is reserved at the center of one end surface of the central tube 11, and The conical mouth of the pouring port 23 that is mainly used for the general mold 22 usually has a minimum diameter of not less than 2mm, so it can be used directly in alignment; in addition, on the outer ring surface of the center hole 12, circles with equal intervals can be drawn according to the preset interval The hole line forms a marking surface 13, and it is enlarged to about 6mm, which is suitable for the use of filling ports 23 pairs and corrections of various molds 22. According to the actual shape of the central tube 11, without affecting the rigidity of the overall tube, appropriate equal-spaced open slots can be preset on the tube surface, and a proper length can be extended inward from the open end, which can be easily pushed in and slipped. When the resistance is appropriately reduced, the central center hole 12 can naturally form a central air hole shape, making the insertion and sliding operation smoother; and on the connecting end surface between the concentric inner and outer rings of the fixed ring 10, it can be inspected according to the actual situation. According to the needs of convenience, there are preset through holes 14, which can not only reduce the resistance of sliding and pushing in, but also facilitate inspection and use, and the plastic molding materials such as the fixing ring 10 and the central tube 11, All are injection-molded with transparent materials, so that the actual center position can be easily checked from the outside to achieve the purpose of accurate installation.

And set with the positioning ring of the present utility model, when it is used as shown in Figure 3, 4, only need to insert the fixed ring 10 into the central perforation 21 position on the frame 20, make it reliable to the inner end face locking The end surface of the mold 22, and cooperate with the insertion of the center hole 11, so that the inner end surface of the marking surface 13 of the center hole 12 slides inward, and then it can lean against the end surface of the mold 22, and according to its filling port 23 The level difference with the center hole 12 can be simply inspected and adjusted to adjust the level difference of the locking of the whole pair of molds 22, so as to achieve the easy operation purpose of correcting the locking of the mold 22. However, the pouring port 23 of the mold 22 is set as a concave mode, that is, the correction operation of the horizontal group lower than the end surface of the mold 22, and according to the design of the slidable push-control type of the central tube 11 of the present invention, it can be simple. It is easy to push the central tube 11 inwards to the end edge of the recess, so as to achieve the same leveling and correct inspection and adjustment operation, so that visual errors will not occur due to non-fitting.

With the sliding design of the center tube 11 of the present utility model, it can also be pulled out for reverse insertion, as shown in Figure 5, that is, the end with the center hole 12 marking surface 13 is placed on the outside of the insertion group One side of the discharge pipe 24 can also be used to check and correct the center position of the discharge pipe 24, because the discharge pipe 24 usually needs to be properly calibrated after long-term use of high-temperature and high-pressure injection materials, otherwise it is very easy to deviate. The actual correct axis position will affect the progress of the entire injection work, and it will also cause difficulties in mold calibration, and it will easily cause unnecessary waste of materials. And with the structure of the central tube 11 of the present utility model, it is designed as a reference through the end hole 21 on the frame 20, and according to the reverse insertion of the central tube 11 of the whole set of positioning rings, the center marking surface can be 13 towards the outward side, just can reach the center proofreading of discharge pipe 24 easily. With the assembly design of the entire set of positioning rings of the present invention, it only needs to be inserted and assembled when in use, and can be easily disassembled after calibration. The positioning ring is suitable for different injection molding machines of the same type, so for the use of general injection molding machines, not only the purchase cost of the utility model is extremely economical, but also the required correction technology is easy to implement, and it is indeed a An economical and practical new correction aid.

Claims (4)

1. A mold correction positioning ring for an injection molding machine, including a frame of the injection molding machine and a mold with a lock; it is characterized in that it also includes a fixed ring with inner and outer concentric rings, and the outer ring of the fixed ring The diameter of the ring is equivalent to the central end hole of the frame, so that the fixed ring is inserted into the frame for positioning and assembly, and a U-shaped central tube is inserted and assembled in the center of the fixed ring. The center hole is provided with several concentric marking surfaces at equal intervals on the outside of the center hole ring. When the center tube is inserted into the fixing ring, the bottom end surface of the center tube is directly against the end surface of the pouring port of the mould. 2. The mold alignment positioning ring of an injection molding machine according to claim 1, wherein a plurality of through holes for inspection are provided on the connecting end faces of the inner and outer rings of the fixing ring. 3. The mold correction positioning ring for injection molding machine according to claim 1, characterized in that: the ring surface of the central tube is equally divided into several open grooves from the free end. 4. The mold alignment positioning ring of an injection molding machine according to claim 1, wherein the fixing ring and the central tube are made of transparent plastic materials.

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