CN205167461U - A jig for removing nozzles on injection molded parts in batches - Google Patents

Abstract

The utility model relates to the technical field of post-processing of injection molding, and discloses a fixture for cutting off nozzles on injection molded parts in batches, including a first splint and a second splint for clamping multiple injection molded parts side by side, and a fixing seat , the fixed seat is provided with a placement slot with an opening upward, and a through hole is provided on one side wall of the placement slot, and a bolt is passed through the hole, and the nut of the bolt faces into the placement slot, and a compression spring is set on the bolt, and the compression spring One end is against the nut, and the other end of the compression spring is against the side wall of the placement groove. The first splint and the second splint are put into the placement groove under the clamped state, and the first splint and the second splint are placed under the elastic force of the compression spring. The second splint is clamped between the nut and the other side wall of the placement groove, and the nozzles of the injection molded parts are exposed side by side above the fixing seat. The utility model can remove the spouts of a plurality of injection molded parts at one time only by one knife pass, which greatly improves the efficiency of cutting the spouts, improves the production capacity, and reduces the process cost.

Description

A jig for removing nozzles on injection molded parts in batches

technical field

The utility model relates to the technical field of post-processing of injection molding, and more particularly relates to a clamp used for batch cutting nozzles on injection molded parts.

Background technique

Metal powder injection molding refers to the use of injection molding machines to inject material into the mold cavity to produce workpieces of the required shape. Its basic principle is similar to traditional plastic molding. Injection-molded plastic parts generally contain runners, nozzles and products. The transitional part between the runners and the product is called the nozzle. The product needs to be detached from the nozzle before degreasing and sintering.

At present, in the industry chain, the runners and nozzles are generally removed from the product by hand breaking or laser engraving. No matter what method is used, uneven marks will be left on the product. If you directly degrease in this state After sintering, the nozzle of the sintered product will show obvious unevenness, which is difficult to keep consistent with other parts of the product. This not only affects the appearance of the product, but also directly affects the size of the product, which is not conducive to assembly, etc., and is finally judged as a defective product. , and this kind of imprint is difficult to remove on the sintered part, so in order to ensure the appearance and size of the product, the industry generally flattens the nozzle when the product is an injection molded part. This process is called cutting the nozzle in the industry.

At present, the method of trimming the spout commonly used in the industry chain is the original method of holding the workpiece in one hand and the knife in the other. Only one product can be repaired at a time, and the efficiency is relatively low. Moreover, for small-sized products, due to the small size, it is not conducive to operation, so the efficiency of cutting the nozzle by this method is lower, and the labor cost is also greatly increased.

Utility model content

In order to overcome the shortcomings of the above-mentioned prior art, the utility model provides a clamp for cutting off nozzles on injection molded parts in batches.

The utility model realizes above-mentioned purpose through following technical scheme.

A fixture for cutting off nozzles on injection molded parts in batches, including a first clamping plate and a second clamping plate for clamping multiple injection molded parts side by side, the first clamping plate and the second clamping plate are positioned by two positioning pins, and also includes fixing The fixed seat is provided with a placement groove with an opening upward, and a through hole is arranged on one side wall of the placement groove, and a bolt is passed through the hole, and the nut of the bolt faces into the placement groove, and a compression spring is set on the bolt, and the compression spring One end of the compression spring is against the nut, and the other end of the compression spring is against the side wall of the placement groove. The first splint and the second splint are put into the placement groove under the clamped state, and the first splint is pressed under the elastic force of the compression spring. The second splint is clamped between the nut and the other side wall of the placement groove, and the nozzles of the injection molded parts are exposed side by side above the fixing seat.

This solution clamps multiple injection molded parts side by side, and exposes the nozzles of the injection molded parts side by side above the fixing seat, and then places the fixing seat on the cutting equipment. The spout is removed at one time. The efficiency of the water cutting port is greatly improved, the production capacity is increased, the process cost is reduced, the method has certain economic benefits, has high application value in industrial production, and is worthy of popularization.

The above-mentioned first splint and second splint form a clamping cavity for clamping the injection molded part in the combined clamping state, and one injection molded part corresponds to one clamping cavity, so that the injection molded part can be better positioned and the injection molded part can be avoided. Damage to injection molded parts due to collision or friction of parts.

The above-mentioned injection molded part is "]"-shaped and the end of the upper wing has an upper extension that extends upward, and the end of the lower wing has a lower extension that extends downward. The above-mentioned nozzle is located at the upper end of the upper extension; the above-mentioned clamping cavity For the "]"-shaped clamping cavity matching the shape of the "]"-shaped injection molded parts, the nozzles of multiple "]"-shaped injection molded parts are exposed to the first splint and the second splint side by side.

Compared with the prior art, the utility model mainly has the following beneficial effects: by clamping multiple injection molded parts side by side and exposing the nozzles of the injection molded parts side by side above the fixing seat, the nozzles of the multiple injection molded parts can be fixed in one stroke. The one-time removal of the nozzle greatly improves the efficiency of the nozzle, increases the production capacity, reduces the process cost, and has certain economic benefits. It has high application value in industrial production and is worthy of promotion.

Description of drawings

Fig. 1 is a three-dimensional structural schematic diagram of an embodiment of the utility model.

Fig. 2 is a three-dimensional structural schematic diagram of a "]"-shaped injection molded part in an embodiment of the present invention.

Fig. 3 is a schematic cross-sectional structure diagram of the clamp according to the embodiment of the present invention.

Fig. 4 is a schematic perspective view of the three-dimensional structure in the state where the first splint and the second splint are separated in the embodiment of the present invention.

Fig. 5 is a schematic diagram of the three-dimensional structure of the fixing seat in the embodiment of the present invention.

detailed description

Below in conjunction with accompanying drawing, the utility model is further described. The accompanying drawings are for illustrative purposes only and should not be construed as limiting the patent.

In order to describe this embodiment more concisely, some components that are known to those skilled in the art but are not related to the main content of the invention will be omitted in the drawings or descriptions. In addition, for the convenience of expression, some parts in the drawings will be omitted, enlarged or reduced, but it does not represent the size or overall structure of the actual product.

Example:

As shown in FIG. 1 , a jig for cutting nozzles on injection molded parts in batches includes a fixing base 1 , a first clamping plate 2 and a second clamping plate 3 for clamping multiple injection molded parts 9 side by side.

As shown in Figure 2, the injection molded part 9 in this embodiment is in the shape of "]" and the end of the upper wing has an upper extension 91 extending upward, and the end of the lower wing has a lower extension 92 extending downward. The nozzle 93 of the "shaped injection molding part 9 is located at the upper end of the upper extension part 91.

As shown in FIG. 3 , the first clamping plate 2 and the second clamping plate 3 form a “]”-shaped clamping cavity matching the shape of the “]”-shaped injection molded part 9 in the combined clamping state. As shown in Figure 1 and Figure 3, the number of "]"-shaped clamping cavities in this embodiment is ten, one "]"-shaped clamping cavity clamps a "]"-shaped injection molded part 9, ten " ]”-shaped injection molded parts 9 are exposed side by side on the first splint 2 and second splint 3, so that the “]”-shaped injection molded parts 9 can be better positioned, and the “]”-shaped injection molded parts 9 and “]”-shaped injection molded parts can be avoided. Part 9 collides or rubs and damages "]" shaped injection molded part 9.

As shown in Figure 4, the two ends of the first clamping plate 2 are provided with positioning pins 21, and the two ends of the second clamping plate 3 are provided with pin holes 31, and the positioning pins 21 are inserted under the combined clamping state of the first clamping plate 2 and the second clamping plate 3. Positioning is carried out in the pin hole 31.

As shown in Fig. 3 and Fig. 5, the fixing seat 1 is provided with an upwardly opening placement groove 11, and one side wall of the placement groove 11 is provided with two countersunk holes 12, and the countersunk holes 12 are respectively pierced with bolts 4, The nut of the bolt 4 faces in the placement groove 11, the screw rod of the bolt 4 is locked with a nut 5, the nut 5 is located on the outside of the side wall, the bolt 4 is covered with a compression spring 6, one end of the compression spring 6 is against the nut, and the compression spring 6 The other end of the counterbore is against the bottom surface of the counterbore 12.

The first splint 2 and the second splint 3 are placed in the placement groove 11 under the combined clamping state, and the first splint 2 and the second splint 3 are clamped on the nut and the placement groove 11 under the elastic force of the compression spring 6 Between the other side wall of , the nozzles 93 of ten "]" shaped injection molded parts 9 are exposed side by side above the fixing seat 1.

In this embodiment, ten injection molded parts 9 are clamped together side by side, and the nozzles 93 of ten "]" shaped injection molded parts 9 are exposed side by side above the fixing seat 1, and then the fixture is placed on the cutting equipment, only once The nozzles 93 of ten injection molded parts 9 can be removed once by cutting. The efficiency of the water cutting port is greatly improved, the production capacity is increased, the process cost is reduced, the method has certain economic benefits, has high application value in industrial production, and is worthy of popularization.

In addition to this embodiment, the number of injection molded parts clamped by the clamp can be determined according to the size relationship between the injection molded parts and the cutting equipment, and is not limited to ten in this embodiment.

The above is only a specific embodiment of the utility model, but the design concept of the utility model is not limited thereto, and all non-essential modifications made to the utility model by utilizing the utility model concept all fall under the protection of the utility model within range.

Claims (3)

1. A fixture for batch removal of nozzles on injection molded parts, characterized in that it includes a first splint and a second splint for clamping multiple injection molded parts side by side, the first splint and the second splint are positioned by two Pin positioning; also includes the fixing seat, the fixing seat is provided with a placement groove with an opening upward, and a through hole is provided on one side wall of the placement groove, and a bolt is passed through the hole, and the nut of the bolt faces into the placement groove, and the bolt is put on the There is a compression spring, one end of the compression spring is against the nut, the other end of the compression spring is against the side wall of the placement groove, the first splint and the second splint are put into the placement groove in the clamped state, and the elastic force of the compression spring Under the action, the first splint and the second splint are clamped between the nut and the other side wall of the placement groove, and the nozzles of the injection molded parts are exposed side by side above the fixing seat. 2. The clamp for removing nozzles on injection molded parts in batches according to claim 1, wherein the first clamping plate and the second clamping plate form a clamp for clamping injection molded parts in a combined clamping state. Holding cavity, one injection molded part corresponds to one holding cavity. 3. The jig for cutting off nozzles on injection molded parts in batches according to claim 2, characterized in that, said injection molded parts are in the shape of "]" and the end of the upper wing has an upwardly extending upper extension, and the lower wing The end has a lower extension that extends downward, and the nozzle is located at the upper end of the upper extension; the clamping cavity is a "]"-shaped clamping cavity that matches the shape of the "]"-shaped injection molded part. The nozzles of the two "]" shaped injection molded parts are exposed side by side on the first splint and the second splint.