Dialyzer joint cover die

Abstract

The utility model relates to the field of injection molding production, and discloses a dialyzer joint cover mold which comprises an upper mold assembly and a lower mold assembly, the upper mold assembly comprises an upper mold plate, a front mold plate and an upper mold core which are connected in sequence, the lower mold assembly comprises a lower mold core, a rear mold plate and a lower mold plate which are connected in sequence, and the upper mold core abuts against the lower mold core; one hundred and twenty-eight first mold cores are arranged on the surface of the side, away from the upper mold plate, of the upper mold core, the branch runner comprises a feeding port and four discharging ports, and the discharging ports are correspondingly connected with the four first mold cores; a second mold core is arranged on the surface of the lower mold core, and a forming cavity is formed between the first mold core and the second mold core; according to the utility model, one hundred and twenty-eight forming cavities are formed in total, so that one hundred and twenty-eight dialyzer joint covers can be produced through injection molding at the same time, and the production capacity is higher; and the injection molding hot nozzle can inject molding raw materials into sixteen molding cavities at the same time, the number of cavities controlled by a single hot nozzle is smaller, the injection molding pressure is more balanced, and the size consistency of the produced dialyzer connector cover is better.

Description

Technical Field

[0001] The utility model relates to the field of molds, in particular to a mold for a dialyzer adapter cap. Background Art

[0002] At present, the use of multi-cavity in one mold for injection molding of plastic products is becoming more and more common. The most important factors to be considered in the design of such molds are filling balance and production capacity.

[0003] In the existing technology, the number of designed cavities in the mold is small, which is difficult to meet the increasing production demand. Moreover, one hot runner controls the products of twenty-four cavities, and it is also difficult to control the filling balance and the dimensional consistency of the products well. The quality of a single product is also difficult to control well, which is difficult to meet the increasing quality requirements. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is: how to improve the molding quantity and quality. To solve the above technical problem, the utility model provides a mold for a dialyzer adapter cap, which includes an upper mold assembly and a lower mold assembly. The upper mold assembly includes an upper template and a front template. A plurality of upper mold cores are arranged in an array on one side of the front template away from the upper template. The lower mold assembly includes a lower template and a rear template. A plurality of lower mold cores corresponding to the upper mold cores are arranged on one side of the rear template facing the front template. The upper mold cores are in contact with the lower mold cores.

[0005] A plurality of sub-runners and a plurality of first mold cores are arranged in an array on the surface of the upper mold core away from the upper template. The sub-runner includes a feed port and four discharge ports. The feed port is connected with an injection hot runner, and the discharge ports respectively communicate with a plurality of the first mold cores. A second mold core corresponding to the first mold core is arranged on the surface of the lower mold core close to the upper mold core. A molding cavity is formed between the corresponding first mold core and the second mold core.

[0006] Preferably, there are four upper mold cores and four lower mold cores. Each upper mold core is provided with two sub-runners and thirty-two first mold cores, and each discharge port respectively communicates with four first mold cores.

[0007] Preferably, the sub-runner is of an "H" type structure.

[0008] Preferably, a plurality of hot runner cavities corresponding to the sub-runners are arranged on one side of the upper mold core close to the upper template. One end of the hot runner cavity is communicated with the feed port of the sub-runner, and the hot runner cavity is used for accommodating an injection hot runner.

[0009] Preferably, the upper die assembly further includes a hot runner plate disposed between the upper template and the front template. A material injection port is provided on one side of the upper template away from the front template, and a first accommodation cavity is provided on the front template corresponding to the hot nozzle cavity. A hot runner is provided in the hot runner plate. One end of the hot runner is communicated with the material injection port, and the other end is connected with a plurality of the injection molding hot nozzles. The end of the injection molding hot nozzle away from the hot runner plate passes through the first accommodation cavity and is disposed in the hot nozzle cavity.

[0010] Preferably, a hot nozzle sleeve is fixed in the first accommodation cavity, and one end of the hot nozzle sleeve is disposed in the hot nozzle cavity. The injection molding hot nozzle is limited in the hot nozzle sleeve. An injection nozzle is provided at one end of the hot nozzle sleeve away from the injection molding hot nozzle. Both ends of the injection nozzle are communicated with the injection molding hot nozzle and the shunt channel feed port respectively.

[0011] Preferably, a groove is provided on one side of the rear template facing the front template, and a push plate is provided in the groove. The push plate is used to push the formed dialyzer adapter cap out of the molding cavity.

[0012] Preferably, a fixed plate is provided between the rear template and the lower template. The fixed plate and the rear template are both provided with a second accommodation cavity corresponding to the second mold core. A mold core is provided in the second accommodation cavity. One end of the mold core is fixed to the fixed plate, and the other end passes through the second accommodation cavity and is disposed in the molding cavity for molding the dialyzer adapter cap.

[0013] Preferably, the lower die assembly further includes a support plate, square iron and middle support bushing sequentially disposed between the fixed plate and the lower template.

[0014] Compared with the prior art, the beneficial effects of a dialyzer adapter cap mold provided in an embodiment of the present invention are as follows:

[0015] In the present invention, there are a total of eight shunt channels and one hundred and twenty-eight first mold cores on one side surface of the upper mold core. Cooperating with the second mold core on the lower mold core, there are a total of one hundred and twenty-eight molding cavities, and one hundred and twenty-eight dialyzer adapter caps can be injection molded and produced simultaneously, and its production capacity is higher than that of the traditional technical solution. In addition, each shunt channel in the present invention includes four discharge ports, and each discharge port corresponds to four first mold cores. During actual injection molding, a single injection molding hot nozzle injects molten raw material into the shunt channel through the feed port. The injection molding hot nozzle can inject the raw material for molding into sixteen molding cavities at the same time. The number of cavities controlled by a single hot nozzle is less, the injection pressure of the raw material is more balanced, and the dimensional consistency of the produced dialyzer adapter caps is better, and problems such as dimensional defects are not likely to occur. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a cross-sectional view of the present invention;

[0017] Figure 2 is a partial view of the present utility model; Figure 1 in;

[0018] Figure 3 is a cross-sectional view of another angle of the present utility model;

[0019] Figure 4 is a schematic structural view of the upper mold core of the present utility model;

[0020] Figure 5 is the present utility model Figure 5 in the cross-sectional view at A-A;

[0021] Figure 6 is a schematic structural view of the rear template and the lower mold core of the present utility model;

[0022] Figure 7 is a schematic structural view of the front template and the upper mold core of the present utility model.

[0023] In the figure: 1. Upper mold assembly; 11. Upper template; 111. Injection port; 12. Front template; 121. First accommodating cavity; 122. Hot nozzle sleeve; 1221. Injection nozzle; 13. Upper mold core; 131. Runner; 1311. Feed port; 1312. Discharge port; 132. Hot nozzle cavity; 133. First mold core; 14. Hot runner plate; 141. Hot runner;

[0024] 2. Lower mold assembly; 21. Lower mold core; 211. Second mold core; 22. Rear template; 23. Lower template; 24. Push plate; 25. Fixed plate; 251. Second accommodating cavity; 252. Core; 26. Support plate; 27. Square iron; 28. Center support.

[0025] 3. Injection hot nozzle; 4. Molding cavity. Specific embodiments

[0026] The following combines the drawings and embodiments to further describe in detail the specific embodiments of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0027] As Figure 1 and Figure 3 shown, a preferred embodiment of the present utility model provides a dialyzer adapter cap mold, which includes an upper mold assembly 1 and a lower mold assembly 2. The upper mold assembly 1 includes an upper template 11 and a front template 12. A plurality of upper mold cores 13 are arrayed on one side of the front template 12 away from the upper template 11. The lower mold assembly 2 includes a lower template 23, a rear template 22, and a plurality of lower mold cores 21 are provided corresponding to the upper mold cores 13 on one side of the rear template 22 facing the front template 12. The upper mold core 13 abuts against the lower mold core 21;

[0028] On one side surface of the upper mold core 13 away from the upper mold plate 11, a plurality of runner channels 131 and a plurality of first mold cores 133 are arrayed. The runner channel 131 includes a feed inlet 1311 and four discharge outlets 1312. The feed inlet 1311 is connected to an injection molding nozzle 3, and a plurality of first mold cores 133 communicate with a single discharge outlet 1312; on the surface of the lower mold core 21 close to the upper mold core 13, a second mold core 211 corresponding to the first mold core 133 is provided, and a molding cavity 4 is formed between the corresponding first mold core 133 and the second mold core 211.

[0029] Furthermore, there are four upper mold cores 13 and four lower mold cores 21. Each upper mold core 13 is provided with two runner channels 131 and thirty-two first mold cores 133, and four first mold cores 133 communicate with a single discharge outlet 1312 correspondingly.

[0030] Specifically, in the traditional solution, a single nozzle needs to control products with twenty-four cavities, and the glue feeding balance and the consistency of product dimensions are relatively poor. In this embodiment, eight runner channels 131 are arranged on the surface of the upper mold core 13. The feed inlet 1311 of each runner channel 131 corresponds to an injection molding nozzle 3 respectively, and four discharge outlets 1312 are arranged at the end of the runner channel 131. Each discharge outlet 1312 is respectively connected and communicated with four first mold cores 133. During injection molding, the injection molding nozzle 3 injects molten molding raw materials into the runner channel 131 through the feed inlet 1311. The molding raw materials flow in the runner channel 131 and enter different first mold cores 133 through the discharge outlets 1312, that is, enter the molding cavity 4. Then, the molding raw materials are cooled to injection mold products. In this embodiment, a single injection molding nozzle 3 is used to control sixteen molding cavities 4. Compared with the solution of controlling twenty-four molding cavities 4 in the traditional solution, the number of cavities to be controlled is less, the length that the raw materials need to flow in the runner channel 131 is also smaller, and the glue feeding balance is undoubtedly better, and the glue feeding pressure is also more uniform, ensuring the consistency of the molding quality and dimensions of each product. In addition, in this embodiment, on the basis of reducing the number of cavities controlled by a single injection molding nozzle 3, by increasing the number of injection molding nozzles 3 and runner channels 131, the number of first mold cores 133 and second mold cores 211 is increased, and the number of molding cavities 4 is also more. In a single injection molding operation, more dialyzer adapter caps with better product quality can be molded at one time. In a specific embodiment, the mold opening cycle of the present utility model is 17.2 seconds, while the mold opening cycle of the traditional solution is 16.8 seconds. However, the present utility model can produce one hundred and twenty-eight products in one mold opening, while the traditional solution can only produce ninety-six products in one mold opening. In terms of production capacity, the solution of the present utility model has been greatly improved.

[0031] Such as Figures 4 to 7As shown, in some embodiments, the runner 131 has an "H" - shaped structure. Specifically, a feed port 1311 is provided in the middle of the runner 131, and the discharge ports 1312 are arranged at the four corners of the runner 131. Four first mold cores 133 are circumferentially arranged on the upper mold core 13 corresponding to the positions of the discharge ports 1312 of the runner 131. Further, an "X" - shaped extension runner is extended from the discharge ports 1312 towards the four first mold cores 133, so that the molding raw material in the discharge ports 1312 can smoothly enter into the first mold cores 133 and then into the molding cavity 4. During the specific injection molding process, the molding raw material output by the injection nozzle 3 enters the runner 131 through the feed port 1311, and then the molding raw material moves along the runner 131 to each discharge port 1312, and finally enters the first mold cores 133 through the discharge ports 1312 and enters the molding cavity 4 to participate in the molding of the product. The runner 131 is set as an "H" - shape, and the four discharge ports 1312 are arranged at the four corners of the runner 131, so that the molding raw material can move evenly and synchronously towards the four discharge ports 1312 in the runner 131, and then move synchronously through the discharge ports 1312 into the sixteen first mold cores 133, ensuring the balance of the glue injection and the consistency of the product size after molding.

[0032] As Figure 2 shown, in some embodiments, on the side of the upper mold core 13 close to the upper template 11, a plurality of nozzle cavities 132 are provided corresponding to the runner 131. One end of the nozzle cavity 132 is communicated with the feed port 1311 of the runner 131, and the nozzle cavity 132 is used to accommodate the injection nozzle 3.

[0033] Furthermore, the upper mold assembly 1 further includes a hot - runner plate 14 provided between the upper template 11 and the front template 12. A material injection port 111 is provided on the side of the upper template 11 away from the front template 12, and a first accommodation cavity 121 is provided on the front template 12 corresponding to the nozzle cavity 132; a hot - runner 141 is provided in the hot - runner plate 14. One end of the hot - runner 141 is communicated with the material injection port 111, and the other end is connected with a plurality of injection nozzles 3. The end of the injection nozzle 3 away from the hot - runner plate 14 passes through the first accommodation cavity 121 and is arranged in the nozzle cavity 132.

[0034] Specifically, one end of the injection molding hot nozzle 3 is fixed to the side of the hot runner plate 14 away from the upper template 11, and the other end passes through the first accommodating cavity 121 provided in the front template 12 and is arranged in the hot nozzle cavity 132 of the upper mold core 13; and one end of the injection molding hot nozzle 3 is communicated with the hot runner 141 on the hot runner plate 14, and the other end is communicated with the sub-runner 131 on the upper mold core 13. During the actual injection molding process, the molding raw material enters the hot runner 141 of the hot runner plate 14 through the injection port 111 on the upper template 11, and then passes through the hot runner 141. The molding raw material enters each injection molding hot nozzle 3, and through the injection molding hot nozzle 3, it enters the corresponding sub-runner 131, and finally enters each molding cavity 4 to complete the injection molding of the tangerine peel.

[0035] In some embodiments, a hot nozzle sleeve 122 is fixed in the first accommodating cavity 121, and one end of the hot nozzle sleeve 122 is arranged in the hot nozzle cavity 132; the injection molding hot nozzle 3 is limited in the hot nozzle sleeve 122, and an injection nozzle 1221 is provided at one end of the hot nozzle sleeve 122 away from the injection molding hot nozzle 3. Both ends of the injection nozzle 1221 are communicated with the injection molding hot nozzle 3 and the feed port 1311 of the sub-runner 131 respectively.

[0036] Specifically, in this embodiment, there are a total of four injection molding areas. Two sub-runners 131 and two injection molding hot nozzles 3 are provided in each injection molding area, in pairs. The molding raw material entering the hot runner 141 through the injection port 111 of the upper template 11 is also divided into four groups in the hot runner plate 14 and flows to the four injection molding areas respectively; the molding raw material in the same injection molding area flows to the two injection molding hot nozzles 3 through the hot runner 141 respectively, and then reaches the other end of the injection molding hot nozzle 3. The molding raw material is ejected from the end of the injection molding hot nozzle 3 and enters the injection nozzle 1221 of the hot nozzle sleeve 122, and then enters the sub-runner 131. Among them, the cavity of the hot nozzle sleeve 122 for accommodating the injection molding hot nozzle 3 is communicated with the injection molding hot nozzle 3, and there is a narrow through hole. The molding raw material ejected from the injection molding hot nozzle 3 can smoothly enter the injection nozzle 1221 through this through hole, and then can enter each molding cavity 4 through the sub-runner 131 to mold the dialyzer adapter cover. The setting of the hot nozzle sleeve 122 makes the position of the injection molding hot nozzle 3 more stable and reliable during the injection molding process, and the molding raw material can better enter the sub-runner 131 through the injection nozzle 1221. The overall structure of the injection nozzle 1221 is a conical structure.

[0037] In some embodiments, a groove is provided on the side of the rear template 22 facing the front template 12, and a push plate 24 is provided in the groove. The push plate 24 is used to push the molded dialyzer adapter cover out of the molding cavity 4.

[0038] Specifically, the ejector plate 24 is arranged in a groove on the rear template 22. After the product is injection molded, under the traction of the injection molding machine, the front template 12 and the ejector plate 24 are first demolded, and then the product is ejected under the action of the ejector plate 24 to realize the demolding of the product.

[0039] In some embodiments, a fixing plate 25 is provided between the rear template 22 and the lower template 23. The fixing plate 25 and the rear template 22 are both provided with a second accommodating cavity 251 corresponding to the second mold core 211. A core 252 is arranged in the second accommodating cavity 251. One end of the core 252 is fixed to the fixing plate 25, and the other end passes through the second accommodating cavity 251 and is arranged in the molding cavity 4 for molding the dialyzer adapter cap.

[0040] Specifically, since the product is a structure of an adapter cap, additional cores 252 need to be provided to mold the structure of the inner surface of the cap body. In this embodiment, one end of the core 252 is fixedly arranged on the fixing plate 25, and the other end of the core 252 passes through the rear template 22 and the lower mold core 21 and enters the second mold core 211. The end of the core 252 cooperates with the first mold core 133 and the second mold core 211 in the molding cavity 4, so as to completely injection mold the dialyzer adapter cap.

[0041] In some embodiments, the lower mold assembly further includes a support plate 26, a square iron 27 and a center lifter 28 sequentially arranged between the fixing plate 25 and the lower template 23.

[0042] In summary, the embodiment of the present utility model provides a mold for a dialyzer adapter cap. The upper mold core 13 controls one hundred and twenty molding cavities 4 through eight sub-runners 131. Each injection nozzle 3 controls fewer molding cavities 4, so that the balance of the glue injection is better, the size and quality of the molded product are also better, and since one hundred and twenty-eight molding cavities 4 are provided, one hundred and twenty-eight products can be molded simultaneously in a single injection, and its production capacity is also higher.

[0043] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and replacements can still be made, and these improvements and replacements should also be regarded as the protection scope of the present utility model.

Claims

1. A dialyzer connector cover mold, comprising an upper mold assembly and a lower mold assembly, characterized in that: The upper mold assembly includes an upper mold plate and a front mold plate, a side of the front mold plate away from the upper mold plate is provided with a plurality of upper mold cores in an array, the lower mold assembly includes a lower mold plate and a rear mold plate, a side of the rear mold plate facing the front mold plate is provided with a plurality of lower mold cores corresponding to the upper mold cores, and the upper mold cores abut against the lower mold cores; A surface array of one side of the upper mold core away from the upper mold plate is provided with multiple branch channels and multiple first mold cores, the branch channels include a feed port and four discharge ports, the feed port is connected to an injection hot nozzle, and the discharge ports are correspondingly connected to multiple first mold cores; a surface of the lower mold core close to the upper mold core is provided with a second mold core corresponding to the first mold core, and a molding cavity is formed between the corresponding first mold core and the second mold core.

2. The dialyzer connector cover mold according to claim 1, characterized in that: There are four upper mold cores and four lower mold cores, each of which is provided with two branch channels and thirty-two first mold cores, and each of which is provided with a discharge port corresponding to and connected to four first mold cores.

3. The dialyzer connector cover mold according to claim 1, characterized in that: The branch channel is an "H" type structure.

4. The dialyzer connector cover mold according to claim 1, characterized in that: A plurality of hot nozzle cavities are provided on one side of the upper mold core close to the upper mold plate corresponding to the branch channel, one end of the hot nozzle cavity is connected to the feed port of the branch channel, and the hot nozzle cavity is used to accommodate the injection hot nozzle.

5. The dialyzer connector cover mold according to claim 4, characterized in that: The upper mold assembly also includes a hot runner plate arranged between the upper mold plate and the front mold plate, the upper mold plate is provided with an injection port on a side away from the front mold plate, and the front mold plate is provided with a first accommodating cavity corresponding to the hot nozzle cavity; a hot runner is arranged in the hot runner plate, one end of the hot runner is connected to the injection port, and the other end is connected to a plurality of injection nozzles, and one end of the injection nozzle away from the hot runner plate passes through the first accommodating cavity and is arranged in the hot nozzle cavity.

6. The dialyzer connector cover mold according to claim 5, characterized in that: A hot nozzle sleeve is fixed in the first accommodating cavity, and one end of the hot nozzle sleeve is arranged in the hot nozzle cavity; the injection hot nozzle is limited in the hot nozzle sleeve, and an injection nozzle is provided at one end of the hot nozzle sleeve away from the injection hot nozzle, and both ends of the injection nozzle are respectively connected to the injection hot nozzle and the branch channel feed port.

7. The dialyzer connector cover mold according to claim 1, characterized in that: A groove is provided on one side of the rear template facing the front template, and a push plate is provided in the groove. The push plate is used to push the formed dialyzer connector cover out of the forming cavity.

8. The dialyzer connector cover mold according to claim 1, characterized in that: A fixing plate is provided between the rear template and the lower template, and the fixing plate and the rear template are both provided with a second accommodating cavity corresponding to the second mold core, and a core is provided in the second accommodating cavity, one end of the core is fixed to the fixing plate, and the other end passes through the second accommodating cavity and is arranged in the molding cavity for molding the dialyzer connector cover.

9. The dialyzer connector cover mold according to claim 8, characterized in that: The lower mold assembly also includes a support plate, a square iron and a middle support which are sequentially arranged between the fixed plate and the lower mold plate.

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