CN102818086A - Clamp of quick connector and forming die thereof - Google Patents

Abstract

A clamp used in a quick joint and a forming die thereof are provided, wherein the clamp comprises a circular ring, two first clamping pieces and two second clamping pieces. The two first clamping pieces and the two second clamping pieces are arranged at intervals and extend from the circular ring, and a cutting groove is formed between each first clamping piece and each two adjacent second clamping pieces. The mold comprises a male mold core, two side mold cores and a female mold core. The male mold core, the two side mold cores and the female mold core can be combined with each other, and a mold cavity corresponding to the shape of the clamp is formed in the center. The core insert comprises a cylinder extending from the bottom surface and a groove arranged on the bottom surface and surrounding the periphery of the cylinder. The center of the two side mold cores is provided with a through channel, and the inner wall surface of the channel is provided with a plurality of convex ribs. The cavity insert comprises an annular groove arranged on the top surface, and a plurality of separating blocks which are opposite to the convex ribs are extended from the bottom of the annular groove. Therefore, the problem that a mold for manufacturing the clamp of the quick connector is easy to damage is effectively solved.

Description

Fixtures for quick connectors and their molding dies

technical field

The invention relates to a mold for manufacturing a quick joint clamp and the clamp manufactured by the mold, in particular to a quick joint mold and a forming mold that can improve the problem of easy wear and tear of the original mold.

Background technique

Existing clamps used to fix pipe fittings in quick connectors are widely used in various pipelines. For example, the clamps for pipe joints disclosed in U.S. Patent No. 7,422,248 utilize a ring and extend from the ring A plurality of clamp arms of the ring fix one end of the pipe fitting in the pipe joint provided with the clamp. With this kind of clamp, the user can quickly and easily fix the pipe fitting in the pipe joint.

8 to 10 show a schematic diagram of a conventional clamp 4 used in quick connectors and a mold 5 for manufacturing the clamp. This clamp 4 comprises a ring 41, and its center is provided with a channel 42, and from this ring 41 further extends four clamping arms 43, and described clamping arm 43 is substantially parallel to this channel 42 axial direction, each described clamping arm 43 is further provided with a U-shaped groove 45, so that each clamp arm 43 can be elastically compressed. fixed in a pipe joint.

The mold 5 for manufacturing the fixture 4 includes a male mold core 51 , two side mold cores 52 and a female mold core 53 . Figure 9 shows the movement of the mold 5 when it is closed. When the male mold core 51 moves towards the female mold core 53, the two side mold cores 52 will be aligned in the horizontal direction, and the top of the two side mold cores 52 will The surface 520 is attached to the bottom surface 510 of the male mold core 51, and after the mold is closed, as shown in FIG.

As shown in Figure 8, the U-shaped groove 45 between each clamp arm 43 of the clamp is formed by the plurality of convex ribs 523 on the inner wall 522 of the mold core 52 on both sides and the corresponding structure of the female mold core 53. corresponding to a plurality of protrusions 531 . It is particularly worth noting that since the bumps 531 on the female mold core 53 are higher than the top surface 530 of the female mold core 53, the bumps 531 of the female mold core 53 will be affected by the mold cores on both sides when the molds are closed. 52, as shown in FIGS. 9 and 10 , under long-term repeated use, the bump 531 is likely to break or be damaged.

Contents of the invention

The technical problem to be solved by the present invention is to provide a quick joint clamp and its forming mold, which solves the problem that the mold for manufacturing the quick joint clamp is easily damaged.

Technical solution of the present invention is:

A mold for manufacturing quick connector clamps, wherein the mold includes: a male mold core with a bottom surface, including a cylinder extending from the bottom surface; mold cores on both sides, which can be opened and closed in the horizontal direction, and have A top surface and a bottom surface, the top surface can be combined with the bottom surface of the male mold core, after the two side mold cores are closed, a channel is formed in the center through the top surface of the side mold core to the bottom surface, for the The cylinder of the male mold core passes through, and the inner wall of the channel has a plurality of convex ribs, the convex ribs are arranged equidistantly and surround the cylinder, each of the convex ribs has a bottom surface, and the bottom surface is connected to the side mold core. The bottom surface is aligned; and a female mold core has a top surface capable of being combined with the bottom surface of the side mold core, and the top surface is provided with an annular groove, and the bottom of the annular groove is facing the position of the convex rib A plurality of partition blocks are further extended, and the partition block divides the annular groove into a plurality of arc-shaped grooves, and the top surface of the partition block is aligned with the top surface of the female mold core; wherein, the male mold core After the core of the side mold and the core of the female mold are combined with each other, a mold cavity for at least one quick connector clamp forming is formed in the center.

The present invention relates to a mold for manufacturing a jig of a quick joint and a jig manufactured by the mold. The mold includes a male mold core, two side mold cores and a female mold core. The male core has a bottom surface. The mold cores on both sides have a top surface and a bottom surface, and the top surface can be combined with the bottom surface of the male mold core. The mold cores on both sides can be opened and closed relative to each other along the horizontal direction and against the bottom surface of the male mold core. The bottom surface of the side mold core can be combined with a top surface of the female mold core.

Wherein, the male core includes a cylinder extending from the bottom surface. After the mold cores on both sides are closed, there is a channel in the center that runs through the top surface to the bottom surface of the mold cores on both sides. The inner wall of the channel has a plurality of convex ribs extending from the inner wall surface. Surrounding the channel, each rib has a top surface and a bottom surface, the top surface of each rib is between the top surface and the bottom surface of the side mold core, the bottom surface of each rib is connected to the bottom surface of the side mold core Qie Qi. The top surface of the female mold core is provided with an annular groove, and the bottom of the annular groove is extended with a plurality of partition blocks facing the convex ribs, and the top surface of the partition blocks is aligned with the top surface of the female mold core .

A clamp for a quick joint, wherein the clamp for the quick joint includes: a ring with an inner ring surface; two first clips respectively extending from the ring, one of the first clips is located on the other first On the opposite side of the clip, each of the first clips includes a body and a projection; one end of the body is connected to the ring and has two opposite sides, an inner surface and an outer surface, the inner surface and the circle The inner ring surface of the ring is aligned; the protrusion extends from the other end of the body, and has two opposite sides, an inner surface and an outer surface, the inner surface of the protrusion is aligned with the inner surface of the body, and the protrusion The outer surface of the block protrudes from the outer surface of the body and has a first witness line, the protrusion is divided into an upper part and a lower part wider than the upper part, the two sides of the upper part of the protrusion are aligned with the body On both sides, the lower part of the protrusion gradually widens from the inside to the outside; and two second clips respectively extend from the ring and are spaced apart from the two first clips, and each of the second clips is connected to the corresponding A sectional groove is formed between two adjacent first clips, each of the second clips includes a body and a protrusion; one end of the body of the second clip is connected to the ring and has two opposite side, an inner surface and an outer surface, the inner surface of the body of the second clip is flush with the inner ring surface of the ring, and the outer surface has a second witness line, the second witness line and the The length direction of the second clip is parallel; the protrusion of the second clip extends from the other end of the body of the second clip, and has two opposite sides, an inner surface and an outer surface. The two opposite sides of the protrusion are respectively aligned with the two opposite sides of the body of the second clip, the inner surface of the protrusion of the second clip is aligned with the inner surface of the body of the second clip, and the second The outer surface of the lug of the clip protrudes from the outer surface of the body of the second clip and has a first witness line coplanar with the first witness line of the first clip , and perpendicular to the second witness line.

The present invention relates to a clamp for a quick connector manufactured by the above-mentioned mold. The clamp includes a ring, two first clamping pieces and two second clamping pieces. The ring has an inner ring surface. The two first clips and the two second clips are arranged at intervals and both extend from the ring, and a slot is formed between each first clip and two adjacent second clips. The clip can be elastically retracted or expanded, so as to clamp a pipe in the quick connector.

One of the first clips is located opposite to the other first clip, and includes a body and a projection. One end of the body is connected with the ring and has two opposite side surfaces, an inner surface and an outer surface, and the inner surface is aligned with the inner ring surface of the ring. The protrusion extends from the other end of the body and has two opposite sides, an inner surface and an outer surface. The inner surface is flush with the inner surface of the body. The outer surface protrudes from the outer surface of the body and has a first witness line (witness line) left along the parting line of the mold when the mold is closed, and the protrusion is divided into an upper part and an upper part relative to the The upper part is a wide lower part. The two sides of the upper part are respectively aligned with the two sides of the body, and the lower part gradually widens from inside to outside.

One of the second clips is located opposite to the other second clip, and includes a body and a projection. One end of the body is connected with the ring and has two opposite side surfaces, an inner surface and an outer surface, and the inner surface is aligned with the inner ring surface of the ring. The outer surface has a second witness line parallel to the length direction of the second clip. The protrusion extends from the other end of the body and has two opposite sides, an inner surface and an outer surface. The two opposite sides are respectively aligned with the two opposite sides of the body. The inner surface is flush with the inner surface of the body. The outer surface protrudes from the outer surface of the body and has a first witness line.

In summary, when the mold is clamped, the bottom surfaces of the mold cores on both sides and the top surface of the female mold core are face-to-face, which can effectively avoid the impact as described in the prior art, so as to protect the the mold.

Description of drawings

FIG. 1 is a partially exploded perspective view of a mold and a jig in a preferred embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of the clamping action of the mold of the preferred embodiment.

FIG. 3 is a schematic cross-sectional view of the mold of the preferred embodiment.

FIG. 4 is a schematic cross-sectional view of the mold of the preferred embodiment.

Fig. 5 is a schematic diagram of the clamp of the preferred embodiment.

Fig. 6 is a side view of the clamp of the preferred embodiment.

FIG. 7 is a schematic cross-sectional view of the clamp of the preferred embodiment.

FIG. 8 is a partially exploded perspective view of a mold and a jig in the prior art.

Fig. 9 is a schematic cross-sectional view of the clamping action of the mold in the prior art.

Fig. 10 is a schematic cross-sectional view of a mold in the prior art.

Explanation of main component labels:

1: Mold 11: Male mold core 110: Bottom surface

111: cylinder 112: groove 12A, 12B: side mold core

120: top surface 121: bottom surface 123: channel

124: Inner wall surface 125: Convex rib 126: Top surface

127: Bottom surface 128: Inner arc surface 13: Female mold core

130: top surface 131: annular groove 131A: arc groove

132: Partition block 133: Top surface 135: Circular shallow groove

100: Cavity 2: Fixture 20: Ring

200: inner ring surface 21: first clip 211: body

211A: one end 211B: the other end 212: side

213: inner surface 214: outer surface 215: bump

215A: Upper 215B: Lower 216A: Side

216B: Side 217: Outer Surface 210: First Witness Line

218: inner surface 22: second clip 221: body

221A: One end 221B: The other end 222: Side

223: inner surface 224: outer surface 225: bump

226: side surface 227: outer surface 228: inner surface

220: First Witness Line 23: Grooving 250: Second Witness Line

3: Metal insert 4: Fixture 41: Ring

42: Channel 43: Clamp arm 44: End

45: U-shaped groove 5: Mold 51: Male mold core

510: bottom surface 52: side mold core 520: top surface

522: Inner wall surface 523: Convex rib 53: Female core

530: top surface 531: bump

Detailed ways

In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings.

1 to 3 show schematic diagrams of a preferred embodiment of a mold for a quick connector clamp of the present invention. The mold 1 includes a male mold core 11 , two side mold cores 12A, 12B and a female mold core 13 . The male core 11 has a bottom surface 110 and includes a cylinder 111 extending from the bottom surface 110 , and the bottom surface 110 is further provided with a groove 112 surrounding the cylinder 111 . Preferably, the groove 112 includes a sprue for injecting raw materials required for molding the jig, but not limited thereto.

The two side mold cores 12A, 12B can be opened and closed relative to each other, and have a top surface 120 and a bottom surface 121 , and the top surface 120 can be attached to the bottom surface 110 of the male mold core 11 . After the two side mold cores 12A, 12B are closed, a channel 123 will be formed in the center through the top surface 120 to the bottom surface 121. After the mold 1 is closed, the cylinder 111 of the male mold core 11 will be placed in the Channel 123. The inner wall 124 of the channel 123 further extends a plurality of ribs 125 arranged at equal distances, and the ribs 125 surround the channel 123 together. Each rib 125 has a top surface 126 , a bottom surface 127 and an inner arc surface 128 . The top surface 126 is located between the top surface 120 and the bottom surface 121 of the two side mold cores 12A, 12B. The bottom surface 127 is aligned with the bottom surface 121 of the two side mold cores 12A, 12B. The curvature of the inner arc surface 128 corresponds to the outer surface curvature of the cylinder 111 of the male core 11 , and the inner arc surface 128 will be in contact with the outer surface of the cylinder 111 after the mold 1 is closed.

The top surface 130 of the female mold core 13 is provided with an annular groove 131 and a circular shallow groove 135, the annular groove 131 includes a plurality of partition blocks 132, and these partition blocks 132 extend from the bottom of the annular groove 131, And the top surface 133 of these partition blocks 132 is aligned with the top surface 130 of the female mold core 13, and can be aligned with the bottom surface 127 of the convex rib 125 of the two side mold cores 12A, 12B, and the annular groove 131 It is divided into a plurality of arc-shaped grooves 131A. The circular shallow groove 135 is used to receive a terminal end of the cylinder 111 of the male core 11 .

FIG. 2 shows a schematic diagram of mold clamping of the mold 1 . When the mold 1 is clamping, the male mold core 11 will approach the female mold core 13 . At the same time, the top surfaces 120 of the mold cores 12A and 12B on both sides close against the bottom surface 110 of the male mold core 11 in the horizontal direction and close together towards the female mold core 13 . After the mold clamping is completed, the bottom surfaces 121 of the mold cores 12A and 12B on both sides will be attached to the top surface 130 of the female mold core 13 , as shown in FIG. 3 .

As mentioned above, since the female mold core 13 and the side mold core 12 in the mold 1 of the present invention are combined surface-to-surface, there will be no collision as described in the prior art, and damage to the mold will be avoided.

FIG. 4 shows a mold cavity 100 formed after the mold 1 is closed, and the mold cavity 100 can be used for forming a clamp 2 on the quick connector. Preferably, the mold cavity 100 further includes a space for the metal embedding piece 3 on the fixture 2 to be formed together with the fixture 2 .

5 to 7 show schematic diagrams of the clamp 2 of the quick connector of the present invention, the clamp 2 is integrally manufactured by the above-mentioned mold 1 . The clamp 2 includes a ring 20 , two first clips 21 and two second clips 22 . The ring 20 has an inner ring surface 200 . The two first clips 21 and the two second clips 22 are spaced apart from each other and both extend from the ring 20, and each first clip 21 and two adjacent second clips 22 each form a slot 23 . The clips 21 , 22 can be elastically retracted or expanded, so as to clamp a pipe in the quick connector (not shown in the figure).

Referring to FIGS. 5 to 7 , one of the first clips 21 of the clamp 2 is located opposite to the other first clip 21 , and each first clip 21 includes a body 211 and a protrusion 215 . One end 211A of the body 211 is connected to the ring 20 and has two opposite side surfaces 212 , an inner surface 213 and an outer surface 214 , and the inner surface 213 is aligned with the inner ring surface 200 of the ring 20 . The protrusion 215 extends from the other end 211B of the body 211 and has an inner surface 218 and an outer surface 217 . The inner surface 218 is aligned with the inner surface 213 of the body 211 . The outer surface 217 protrudes from the outer surface 214 of the body 211 . In addition, the outer surface 217 further has a first witness line 210 dividing the bump 215 into an upper portion 215A and a lower portion 215B wider than the upper portion 215A.

Referring to Fig. 6 and Fig. 7, the two sides 216A of the upper part 215A are respectively aligned with the two sides 212 of the body 211, and the lower part 215B gradually widens from the inside to the outside, respectively forming two sides inclined relative to the two sides 216A of the upper part. 216B.

Referring to FIGS. 5 to 7 , one of the second clips 22 of the clamp 2 is located opposite to the other second clip 22 , and each second clip 22 includes a body 221 and a protrusion 225 . One end 221A of the body 221 is connected to the ring 20 and has two opposite side surfaces 222 , an inner surface 223 and an outer surface 224 , and the inner surface 223 is aligned with the inner ring surface 200 of the ring 20 . The protrusion 225 extends from the other end 221B of the body 221 and has two opposite sides 226 , an inner surface 228 and an outer surface 227 , and the two opposite sides 226 are aligned with the two opposite sides 222 of the body respectively. The inner surface 228 is aligned with the inner surface 223 of the body 221 . The outer surface 227 protrudes from the outer surface 224 of the body 221 and has a first witness line 220 . The first witness lines 220 of the two second clips 22 and the first witness lines 210 of the two first clips 21 are located on the same plane, and both are along the above-mentioned mold 1 (not shown in the figure). The parting line formed when the mold is closed, as shown in Figure 6.

In addition, referring to FIG. 1 , the clamp 2 further has two second witness lines 250 located on the outer surface 224 of the body 221 of the two second clips 22 respectively, and one end of the second witness line 250 goes toward the ring 20 The other end extends to the outer surface 227 of the protrusion 225 corresponding to the second clip 22 , and intersects and terminates at the first witness line 220 of the protrusion 225 . In short, the second witness line 250 is parallel to the length direction of the second clip 22 and perpendicular to the first witness line 220 .

Preferably, the inner surfaces 218 , 228 of the protruding blocks 215 , 225 respectively have a metal embedding piece 3 for locking against a pipe inserted into the clamp 2 .

The above descriptions are only illustrative specific implementations of the present invention, and are not intended to limit the scope of the present invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principle of the present invention shall fall within the protection scope of the present invention.

Claims (2)

1. A clamp of quick connector, is characterized in that, the clamp of this quick connector comprises: a circular ring having an inner annular surface; Two first clips extend from the ring respectively, one of the first clips is located opposite the other first clip, each of the first clips includes a body and a projection; one end of the body is connected to the The ring is connected and has two opposite sides, an inner surface and an outer surface, and the inner surface is aligned with the inner ring surface of the ring; an inner surface and an outer surface, the inner surface of the protrusion is flush with the inner surface of the body, the outer surface of the protrusion protrudes from the outer surface of the body and has a first witness line, the protrusion is divided into an upper part and a lower part wider than the upper part, the two side surfaces of the upper part of the protrusion are aligned with the two sides of the body, and the lower part of the protrusion gradually widens from the inside to the outside; and Two second clips respectively extend from the ring and are spaced apart from the two first clips, and each of the second clips forms a slot with two adjacent first clips , each of the second clips includes a body and a projection; one end of the body of the second clip is connected to the ring and has two opposite sides, an inner surface and an outer surface, the second clip The inner surface of the main body is flush with the inner ring surface of the ring, and its outer surface has a second witness line, which is parallel to the length direction of the second clip; the second clip The protrusion extends from the other end of the body of the second clip, and has two opposite sides, an inner surface and an outer surface, and the two opposite sides of the protrusion of the second clip are respectively connected to the body of the second clip. The two opposite sides of the second clip are aligned, the inner surface of the projection of the second clip is flush with the inner surface of the body of the second clip, and the outer surface of the projection of the second clip protrudes from the second clip The outer surface of the main body of the sheet has a first witness line, the first witness line is coplanar with the first witness line of the first clip, and is perpendicular to the second witness line. 2. A mold for making quick connector clamps, characterized in that the mold comprises: a male core having a bottom surface including a cylinder extending from the bottom surface; The mold cores on both sides can be opened and closed in the horizontal direction, and have a top surface and a bottom surface. The top surface can be combined with the bottom surface of the male mold core. A channel from the top surface of the mold core to the bottom surface, for the cylinder of the male mold core to pass through, and the inner wall of the channel has a plurality of convex ribs, the ribs are arranged equidistantly and surround the cylinder, each of the convex ribs the rib has a bottom surface flush with the bottom surface of the side-form core; and A female mold core has a top surface that can be combined with the bottom surface of the side mold core, and the top surface is provided with an annular groove, and the bottom of the annular groove is directly opposite to the rib. a partition block, the partition block divides the annular groove into a plurality of arc-shaped grooves, and the top surface of the partition block is aligned with the top surface of the female mold core; Wherein, after the male mold core, the side mold core and the female mold core are combined with each other, a mold cavity for at least one quick connector clamp forming is formed in the center.

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