Drying jig

Abstract

The utility model belongs to the technical field of surface treatment of extruded plastic materials, and discloses a drying jig. The drying jig comprises a first mold, a second mold and a drying piece. The second mold and the first mold are matched to form a channel for an extruded pipe to pass through; at least one of the first mold and the second mold is provided with a drying piece, the drying piece is provided with a drying hole and an air inlet, and the air inlet is used for introducing compressed air and can suck air from the channel or blow air into the channel through the drying hole so as to provide negative pressure or positive pressure for liquid on the surface of the extruded pipe. According to the drying jig, in the process of drying the surface of the extruded pipe, the extruded pipe cannot shake, and the problem that the extruded pipe is damaged or deformed is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to extrusion plastic material surface treatment technical field, especially a kind of drying jig. BACKGROUND

[0002] In the process of medical pipe material extrusion production, it is a common way to cool product by purified water to make product shaping. The plastic material in molten state is rapidly cooled after passing through water tank to form extrusion product with suitable cross-sectional shape. Purified water can very well meet the needs of extrusion medical pipe material cooling. After passing through purified water, it is usually necessary to remove the moisture on the surface of the pipe material by compressed gas and then collect.

[0003] In the prior art, compressed gas is provided to the surface of the pipe to blow off the moisture on the surface of the pipe. On the one hand, the blowing of compressed gas onto the pipe can cause the pipe to shake, thereby causing the pipe shaping system to fluctuate and causing the tolerance of the extruded pipe to increase. In extreme cases, especially for soft material pipes and ultra-thin wall material pipes, such shaking can cause the extruded pipe to break. On the other hand, one-way compressed gas can cause the pipe to be pulled with periodic changes in tension, thereby affecting the balance of the extrusion pulling system. Especially in the case of closed-loop control, continuous one-way input can eventually cause the system to shake in the control cycle, eventually causing the entire closed-loop control cycle to fail and affecting the final shaping of the pipe. SUMMARY

[0004] The utility model aims at providing a drying jig that can be installed downstream of a device that provides compressed gas, and by providing positive pressure (blowing) or negative pressure (suction) to the surface of the extruded pipe, the liquid on the surface of the extruded pipe is removed, to solve the problem of extruded pipe breakage or deformation caused by shaking of the extruded pipe during drying.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A drying jig is provided for surface treatment of an extruded pipe, the drying jig comprising:

[0007] a first mold;

[0008] a second mold cooperating with the first mold to form a passage for the extruded pipe to pass through;

[0009] a drying member, at least one of the first mold and the second mold is provided with the drying member, the drying member is provided with a drying hole and an air inlet, the air inlet is used to access compressed gas, and the drying hole can be used to suck air from the passage or blow air into the passage to provide negative pressure or positive pressure for the liquid on the surface of the extruded pipe.

[0010] As preferred, at least one of the first mold and the second mold is provided with a plurality of first communication holes, each of the plurality of first communication holes being in communication with the drying hole.

[0011] As preferred, the first mold comprises a first mold core, and the second mold comprises a second mold core, the first mold core is provided with a first groove, and the second mold core is provided with a second groove, the first groove and the second groove cooperate to form the passage for the extruded pipe to pass through.

[0012] As preferred, the first mold further comprises a first mold base, and the second mold further comprises a second mold base, the first mold core is detachably connected to the first mold base, and the second mold core is detachably connected to the second mold base; the first communication hole is provided in at least one of the first mold base and the second mold base.

[0013] As preferred, the first mold base is provided with a first placing groove, and the second mold base is provided with a second placing groove, the first mold core is detachably arranged in the first placing groove, and the second mold core is detachably arranged in the second placing groove.

[0014] As preferred, at least one of the first mold core and the second mold core is provided with a plurality of second communication holes, the first communication hole, the drying hole, and the plurality of second communication holes are in communication.

[0015] As preferred, the first mold is provided with a first inlet groove, and the second mold is provided with a second inlet groove, the first inlet groove and the second inlet groove cooperate to form an inlet for the extruded pipe to enter the passage.

[0016] As preferred, the inner contour size of the first inlet groove away from one end of the middle part of the passage is greater than the inner contour size of the first inlet groove close to one end of the middle part of the passage;

[0017] The inner contour size of the second inlet groove away from one end of the middle part of the passage is greater than the inner contour size of the second inlet groove close to one end of the middle part of the passage.

[0018] As preferred, the drying jig further comprises a first cover and a second cover, the first cover covers the side of the first mold away from the passage; and the second cover covers the side of the second mold away from the passage.

[0019] As preferred, one of the first cover and the second cover is provided with a plurality of discharge holes, or both the first cover and the second cover are provided with a plurality of discharge holes, and the liquid on the surface of the extruded pipe can be discharged through the discharge holes.

[0020] The utility model discloses a beneficial effect:

[0021] The utility model provides a kind of drying jig, including first mould, second mould and drying piece.Second mould and first mould cooperate to form the passage for extruded tubular product to pass through, to facilitate drying jig act on the surface of extruded tubular product.At least one of first mould and second mould is equipped with drying piece, drying piece is equipped with drying hole and air inlet, air inlet is used to access compressed gas, and can be suctioned from passage by drying hole or blow gas to passage, to provide negative pressure or positive pressure for the liquid on the surface of extruded tubular product.The gas of negative pressure makes that in the process of drying treatment to the surface of extruded tubular product, extruded tubular product does not occur to shake, reduce the frequency of occurrence of the breakage or deformation condition of extruded tubular product.The drying jig can be installed downstream of the equipment providing compressed gas, when drying piece does not work, the gas of positive pressure acts on the surface of extruded tubular product;When drying piece works, drying jig can convert the gas of positive pressure into the gas of negative pressure and act on the surface of extruded tubular product, so that the gas of positive pressure and the gas of negative pressure can alternately act on the surface of extruded tubular product, avoid one-way gas to continuously act on extruded tubular product and destroy the final forming shape of extruded tubular product. BRIEF DESCRIPTION OF DRAWINGS

[0022] Fig. 1 It is the structure schematic diagram of drying jig provided by the utility model embodiment;

[0023] Fig. 2 It is the front view of drying jig provided by the utility model embodiment;

[0024] Fig. 3 It is the top view of drying jig provided by the utility model embodiment;

[0025] Fig. 4 It is the section view of drying jig provided by the utility model embodiment.

[0026] In the drawing:

[0027] 1, first mould;11, first communication hole;12, first mould core;121, first recess;122, second communication hole;13, first mould seat;14, first inlet slot;

[0028] 2, second mould;21, second mould core;211, second recess;22, second mould seat;23, second inlet slot;

[0029] 3, drying piece; 31, drying hole; 32, air inlet;

[0030] 41, first cover piece;42, second cover piece;43, discharge hole;

[0031] 100, extruded tubular product. DETAILED DESCRIPTION

[0032] The utility model will be described in further detail below in connection with the drawings and embodiments. It can be understood that the specific embodiments described herein are merely intended to explain the utility model, and not to limit the utility model. In addition, it should be noted that, for the convenience of description, only the parts related to the utility model are shown in the drawings, not all the structures.

[0033] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0034] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0035] In the description of the embodiment, the terms "up", "down", "right", etc. orientation or position relationship is based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0036] As Figs. 1 to 4 shown, the embodiment provides a drying jig, which can be installed downstream of a device providing compressed gas for surface treatment of an extruded pipe 100.

[0037] In some embodiments, the drying jig comprises a first mold 1, a second mold 2 and a drying member 3. The second mold 2 cooperates with the first mold 1 to form a channel for the extruded pipe 100 to pass through; at least one of the first mold 1 and the second mold 2 is provided with the drying member 3, which is provided with a drying hole 31 and an air inlet 32 for connecting to compressed gas and can draw or blow air from or to the channel through the drying hole 31 to provide negative or positive pressure for the liquid on the surface of the extruded pipe 100. In this embodiment, the first mold 1 and the second mold 2 are both provided with the drying member 3, so that the drying effect on the surface of the extruded pipe 100 is better.

[0038] The negative pressure gas makes the extruded pipe 100 not shake during the drying process on the surface of the extruded pipe 100, reducing the frequency of damage or deformation of the extruded pipe 100. The drying jig can be installed downstream of the equipment providing compressed gas; when the drying member 3 is not working, the positive pressure gas acts on the surface of the extruded pipe 100; when the drying member 3 is working, the drying jig can convert the positive pressure gas into negative pressure gas acting on the surface of the extruded pipe 100, so that the positive pressure gas and the negative pressure gas can alternately act on the surface of the extruded pipe 100, avoiding the continuous action of the gas in one direction on the extruded pipe 100 to destroy the final shape of the extruded pipe 100.

[0039] Specifically, one of the first mold 1 and the second mold 2 is provided with a plurality of first communication holes 11, or both the first mold 1 and the second mold 2 are provided with a plurality of first communication holes 11, and the plurality of first communication holes 11 are in communication with the drying hole 31. In this embodiment, the drying member 3 is a vacuum generator, and the drying member 3 also has an air outlet which can be selectively closed. When it is necessary to draw air on the surface of the extruded pipe 100, the air outlet is opened.

[0040] The positive pressure gas is introduced through the air inlet 32 and converted into negative pressure gas under the action of the drying member 3, and the negative pressure gas acts on the surface of the extruded pipe 100 through the drying hole 31 and the first communication hole 11 to achieve the purpose of sucking away the liquid on the surface of the extruded pipe 100. In this embodiment, the first mold 1 and the second mold 2 are both provided with a plurality of first communication holes 11, which can further enhance the drying effect on the surface of the extruded pipe 100.

[0041] The first mold 1 comprises a first mold core 12, and the second mold 2 comprises a second mold core 21. The first mold core 12 is provided with a first recess 121, and the second mold core 21 is provided with a second recess 211. The first recess 121 and the second recess 211 cooperate to form a channel for the extruded pipe 100 to pass through. The shapes of the first recess 121 and the second recess 211 are consistent with the shape of the extruded pipe 100, so that the extruded pipe 100 can be arranged in the channel formed by the first recess 121 and the second recess 211.

[0042] Further, in order to facilitate the replacement of the first mold core 12 and the second mold core 21, so that the drying jig can adapt to different specifications of the extruded pipe 100, the first mold 1 further comprises a first mold seat 13, the second mold 2 further comprises a second mold seat 22, the first mold core 12 is detachably connected to the first mold seat 13, and the second mold core 21 is detachably connected to the second mold seat 22; the first communication hole 11 is arranged in one of the first mold seat 13 and the second mold seat 22, or the first mold seat 13 and the second mold seat 22 are both provided with the first communication hole 11. When the shape of the extruded pipe 100 changes, only the mold core corresponding to the shape of the extruded pipe 100 needs to be replaced, and the whole drying jig does not need to be replaced, which is beneficial to saving cost.

[0043] In order to facilitate the setting of the mold core in the mold seat, the first mold seat 13 is provided with a first placing groove, the second mold seat 22 is provided with a second placing groove, the first mold core 12 is detachably arranged in the first placing groove, and the second mold core 21 is detachably arranged in the second placing groove.

[0044] Since the passage for the extruded pipe 100 to pass through is formed by the abutment of the first mold core 12 and the second mold core 21, in order to facilitate the gas with negative pressure output by the drying piece 3 to act on the surface of the extruded pipe 100 through the first mold core 12 and the second mold core 21, one of the first mold core 12 and the second mold core 21 is provided with a plurality of second communication holes 122, or the first mold core 12 and the second mold core 21 are both provided with a plurality of second communication holes 122, and the plurality of first communication holes 11, the drying hole 31 and the plurality of second communication holes 122 are all communicated. In this embodiment, the first mold core 12 and the second mold core 21 are both provided with a plurality of second communication holes 122, which further enhances the drying effect on the surface of the extruded pipe 100.

[0045] In order to facilitate the extruded pipe 100 to pass into the passage, the first mold 1 is provided with a first inlet groove 14, the second mold 2 is provided with a second inlet groove 23, and the first inlet groove 14 and the second inlet groove 23 cooperate to form an inlet for the extruded pipe 100 to pass into the passage.

[0046] Specifically, the inner contour size of one end of the first inlet groove 14 away from the middle of the passage is greater than the inner contour size of one end of the first inlet groove 14 close to the middle of the passage; and the inner contour size of one end of the second inlet groove 23 away from the middle of the passage is greater than the inner contour size of one end of the second inlet groove 23 close to the middle of the passage. This setting makes the inlet formed by the first inlet groove 14 and the second inlet groove 23 gradually decrease in inner diameter from large to consistent with the inner diameter of the passage in the direction of the extruded pipe 100 passing into the passage, which facilitates the operator to align the inlet to pass the extruded pipe 100 into the passage, and improves the efficiency of the extruded pipe 100.

[0047] The drying jig further comprises a first cover 41 and a second cover 42, the first cover 41 is arranged on the side of the first mold 1 away from the channel, and the second cover 42 is arranged on the side of the second mold 2 away from the channel. The first cover 41 and the second cover 42 play a role in protecting the first mold 1 and the second mold 2, and make the overall appearance of the drying jig more tidy.

[0048] Further, in order to discharge the liquid on the surface of the drawn extruded pipe 100 to the external environment, one of the first cover 41 and the second cover 42 is provided with a plurality of discharge holes 43, or both the first cover 41 and the second cover 42 are provided with a plurality of discharge holes 43, which can assist in discharging the liquid on the surface of the extruded pipe 100. In the embodiment, both the first cover 41 and the second cover 42 are provided with a plurality of discharge holes 43, which further enhances the discharge effect of the liquid on the surface of the extruded pipe 100.

[0049] Preferably, the drying jig further comprises a program control module and a detection member, the detection member is used for detecting the real-time condition of the liquid on the surface of the extruded pipe 100 and transmitting a signal to the program control module, so that the program control module can timely adjust the strength of the positive pressure gas and the negative pressure gas acting on the surface of the extruded pipe 100 and the alternating frequency of the two compressed gases.

[0050] When the extruded pipe 100 needs to be blown in the use of the drying jig, the gas outlet is closed, the compressed gas is introduced into the drying member 3 through the gas inlet 32, and the positive pressure gas is blown to the surface of the extruded pipe 100 through the drying hole 31 and the first communication hole 11, and finally discharged through the first communication hole 11, the second communication hole 122 and the discharge hole 43. When the extruded pipe 100 needs to be sucked, the gas outlet is opened, the compressed gas is introduced into the drying member 3 through the gas inlet 32, under the flow of the compressed gas, the liquid and the gas on the surface of the extruded pipe 100 are sucked out through the drying hole 31 and the first communication hole 11, and discharged through the gas outlet, the first communication hole 11, the second communication hole 122 and the discharge hole 43.

[0051] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For ordinary skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present application. Here, it is unnecessary and impossible to enumerate all the implementation modes. Any modification, equivalent substitution and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A drying jig for surface treating an extruded tubing (100), characterized by, The drying jig comprises: a first mold (1); a second mold (2) cooperating with the first mold (1) to form a passage for the extruded pipe (100) to pass through; a drying piece (3), at least one of the first mold (1) and the second mold (2) is provided with the drying piece (3), the drying piece (3) is provided with a drying hole (31) and an air inlet (32), the air inlet (32) is used for accessing compressed gas, and the drying hole (31) is used for sucking or blowing air from or to the passage to provide negative pressure or positive pressure for the liquid on the surface of the extruded pipe (100).

2. The drying fixture of claim 1, wherein, At least one of the first mold (1) and the second mold (2) is provided with a plurality of first communication holes (11), and the plurality of first communication holes (11) are in communication with the drying hole (31).

3. The drying fixture of claim 2, wherein, The first mold (1) comprises a first mold core (12), and the second mold (2) comprises a second mold core (21), the first mold core (12) is provided with a first groove (121), the second mold core (21) is provided with a second groove (211), and the first groove (121) and the second groove (211) cooperate to form the passage for the extruded pipe (100) to pass through.

4. The drying fixture of claim 3, wherein, The first mold (1) further comprises a first mold base (13), and the second mold (2) further comprises a second mold base (22), the first mold core (12) is detachably connected to the first mold base (13), and the second mold core (21) is detachably connected to the second mold base (22); the first communication hole (11) is arranged in at least one of the first mold base (13) and the second mold base (22).

5. The drying fixture of claim 4, wherein, The first mold base (13) is provided with a first placing groove, the second mold base (22) is provided with a second placing groove, the first mold core (12) is detachably arranged in the first placing groove, and the second mold core (21) is detachably arranged in the second placing groove.

6. The drying fixture of claim 3, wherein, At least one of the first mold core (12) and the second mold core (21) is provided with a plurality of second communication holes (122), and the plurality of first communication holes (11), the drying hole (31) and the plurality of second communication holes (122) are in communication.

7. The drying fixture of claim 1, wherein, The first mold (1) is provided with a first inlet groove (14), and the second mold (2) is provided with a second inlet groove (23), the first inlet groove (14) and the second inlet groove (23) cooperate to form an inlet for the extruded pipe (100) to enter the passage.

8. The drying fixture of claim 7, wherein, The inner contour size of the first inlet groove (14) away from one end of the central part of the passage is greater than the inner contour size of the first inlet groove (14) close to one end of the central part of the passage; The inner contour size of the second inlet groove (23) away from one end of the central part of the passage is greater than the inner contour size of the second inlet groove (23) close to one end of the central part of the passage.

9. The drying fixture of claim 1, wherein, The drying jig comprises a first cover (41) and a second cover (42), the first cover (41) is arranged on the side of the first mold (1) away from the channel; the second cover (42) is arranged on the side of the second mold (2) away from the channel.

10. The drying fixture of claim 9, wherein, One of the first cover (41) and the second cover (42) is provided with a plurality of discharge holes (43), or the first cover (41) and the second cover (42) are both provided with a plurality of discharge holes (43), and the liquid on the surface of the extruded pipe (100) can be discharged through the discharge holes (43).

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