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Combined spreader in multicolor die head

A combined and shunting shuttle technology, which is applied in the field of blow molding machines, can solve problems such as color difference and difficulty in making plastic products, and achieve the effects of improving aesthetics, convenient installation, and convenient maintenance.

Active Publication Date: 2022-06-28
张家港市意久机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When making two-color or multi-color plastic products, it is necessary to input the main-color thermoplastic resin into the inner runner 23 through the shunt shuttle 20, and then add thermoplastic resins of different colors to the inner runner 23 through the color separation runner 24. The thermoplastic resin covered on the main-color thermoplastic resin can form two-color or multi-color plastic products, but the two-color or multi-color plastic products produced in this way have the following defects: because the thermoplastic resins of different colors are covered on the main-color thermoplastic On the resin, it is easy to cause color difference between the two colors; and it is difficult to make plastic products with multiple colors and stripes

Method used

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  • Combined spreader in multicolor die head
  • Combined spreader in multicolor die head
  • Combined spreader in multicolor die head

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] When it is necessary to blow plastic products with two-color twelve stripes, such as Image 6 As shown in the figure, the combined diverter shuttle used is composed of a conical diversion disc 3 and a diversion column 4 which are sealed and matched, and the two first connection holes 35 on the conical diversion disc 3 are respectively connected with the two The second connection holes 46 are in one-to-one correspondence, connecting rods 6 are pierced between the corresponding first connection holes 35 and the second connection holes 46 , six One guide hole 31, six first distribution grooves 33;

[0026] There are six third guide holes 44 corresponding to the six first guide holes 31 one-to-one, and six second guide holes 44 corresponding to the six first guide holes 33 one-to-one on the top wall of the distribution column 4 . shunt hole 45;

[0027]When using this type of combined diverter shuttle, it is necessary to set up a dichroic flow channel corresponding to the...

Embodiment 2

[0029] When it is necessary to blow plastic products with eighteen stripes in three colors, such as Figure 7 As shown in the figure, the combined diverter shuttle used is composed of a conical diversion disc 3, a diversion disc 5 and a diversion column 4 in order from top to bottom. The two first connection holes 35 on the conical diversion disc 3 They are in one-to-one correspondence with the two connecting through holes 56 on the shunt plate 5, and the two connecting through holes 56 on the shunt plate 5 are in one-to-one correspondence with the two second connecting holes 46 on the shunt column 4. A connecting rod 6 is pierced between the connecting hole 35 , the connecting through hole 56 and the second connecting hole 46 , and six first guide holes 31 , six third guide holes 31 are evenly distributed on the bottom wall of the conical guide plate 3 . A shunt 33;

[0030] There are six second diversion holes 51 corresponding to the six first diversion holes 31 one-to-one,...

Embodiment 3

[0034] When it is necessary to blow plastic products with four colors and twenty-four stripes, such as Figure 8 As shown in the figure, the combined diverting shuttle used is composed of a conical diversion disc 3, two diverting discs 5 and a diverting column 4 in order from top to bottom. The two first connection holes on the conical diversion disc 3 35 are in one-to-one correspondence with the two connecting through holes 56 on the shunt plate 5, and the two connecting through holes 56 on the shunt plate 5 are in one-to-one correspondence with the two second connecting holes 46 on the shunt column 4. A connecting rod 6 is pierced between the first connecting hole 35 , the connecting through hole 56 and the second connecting hole 46 , and six first guide holes 31 , six first guide holes 31 , six the first shunt 33;

[0035] The first diverter plate 5 is uniformly distributed with six second diversion holes 51 corresponding to the six first diversion holes 31 one-to-one, and...

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Abstract

The invention discloses a combined spreader in a multicolor die head, which comprises a conical flow guide disc and a flow distribution column, N flow distribution discs are arranged between the conical flow guide disc and the flow distribution column, and a plurality of first flow guide holes and first flow distribution grooves are arranged on the conical flow guide disc; a plurality of second flow guide holes, second flow dividing grooves and first flow dividing holes are formed in the flow dividing disc, and the number of the first flow dividing holes is equal to the sum of the number of the first flow dividing grooves, the first flow dividing holes and the second flow dividing grooves in the conical flow guide disc or the flow dividing disc which is located above the first flow dividing holes and is in sealing fit with the first flow dividing holes; a plurality of third diversion holes and second diversion holes are formed in the diversion column, and the number of the second diversion holes is equal to the sum of the number of the first diversion grooves, the number of the first diversion holes and the number of the second diversion grooves in the conical diversion disc or the diversion disc in sealing fit with the second diversion holes. The method has the advantages that the subsequent maintenance work is facilitated; and double-color or multi-color pipe blanks with clear color boundaries and multiple stripes can be stably extruded, and the attractiveness of blow-molded plastic products is greatly improved.

Description

technical field [0001] The invention relates to the technical field of blow molding machines, in particular to a combined shunt shuttle in a multicolor die. Background technique [0002] Blow molding, also known as hollow blow molding, is a rapidly developing plastic processing method. The tubular plastic parison obtained by extrusion or injection molding of thermoplastic resin is placed in a split mold while hot (or heated to a softened state), and compressed air is introduced into the parison immediately after the mold is closed to inflate the plastic parison And close to the inner wall of the mold, after cooling and demoulding, various hollow plastic products are obtained. The hollow blow molding machine is a combination of an extruder, a blow molding machine and a clamping mechanism. It consists of an extruder and a die head, an inflation device, a clamping mechanism, a parison thickness control system and a transmission mechanism. One of the important components of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C49/04B29C48/325B29C48/09B29C48/17
CPCB29C49/04B29C48/325B29C48/09B29C48/17Y02P70/10
Inventor 王伟黄兴来曹昀
Owner 张家港市意久机械有限公司
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