Blow molding dust cover mold

Abstract

The utility model discloses a blow molding dust cover mold, which relates to the technical field of blow molding molds, and comprises an injection mold lower mold, two sides of the top surface of the injection mold lower mold are symmetrically provided with two accommodating grooves, and switching type guide mechanisms are arranged in the accommodating grooves; through the arrangement of the switching type guide mechanism, when the upper mold and the lower mold are closed, the guide column erected on the top surface of the lower mold of the injection mold penetrates into the positioning hole of the upper mold so as to ensure that the upper mold and the lower mold can be accurately closed, and once the upper mold and the lower mold are used for a long time and the surface of the erected guide column is seriously abraded, only a switching part is needed; the two guide columns are switched by 90 degrees, the guide column transversely arranged on the inner side of the containing groove can be rapidly switched to the top face of the lower mold of the injection mold, and the abraded guide column is rotated into the inner side of the containing groove to be hidden, so that compared with the mode that the guide columns and the lower mold of the injection mold are directly and fixedly connected through bolts in the prior art, the guide columns are not prone to being abraded. The replacement of the worn guide post can be conveniently realized in a short time, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to blow mould technology field, concretely relates to a blow dust cover mould. BACKGROUND

[0002] Blow molding mainly refers to hollow blow molding, is the method that closed hot melt parison in mould is blown up to form hollow product by gas pressure, is a kind of plastic forming method that develops faster, compared with injection molding, the equipment cost is lower, the adaptability is stronger, and the formability is good.

[0003] The four corners of the lower mould of the conventional blow mould are fixedly provided with guide columns, and the four corners of the upper mould are provided with positioning holes matched with the guide columns, so that when the upper mould and the lower mould are combined, the guide columns of the lower mould are inserted into the positioning holes of the upper mould, and the guide columns and the positioning holes are matched to accurately combine the upper mould and the lower mould of the blow mould.

[0004] However, the surface of the guide column is seriously worn after long-term insertion into the positioning hole, so that the guide column cannot play a good guiding role, the accuracy of the combination of the upper mould and the lower mould is reduced, and the guide column is generally fixedly connected with the mould by a plurality of bolts, so that the actual disassembly and replacement of the guide column are complicated, the guide column cannot be quickly replaced, and the working efficiency of the injection mould is affected. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the utility model provides a blow dust cover mould, which solves the problem that the surface of the guide column is seriously worn after long-term insertion into the positioning hole, so that the guide column cannot play a good guiding role, the accuracy of the combination of the upper mould and the lower mould is reduced, and the guide column is generally fixedly connected with the mould by a plurality of bolts, so that the actual disassembly and replacement of the guide column are complicated, the guide column cannot be quickly replaced, and the working efficiency of the injection mould is affected.

[0006] To achieve the above purposes, the utility model adopts the technical scheme that a blow dust cover mould comprises an injection mould lower mould, two accommodating grooves are symmetrically arranged on the top surface of the injection mould lower mould, and a switching type guide mechanism is arranged in the accommodating grooves.

[0007] The switching type guide mechanism comprises two guide columns distributed at an angle of 90 degrees and a conversion component between the two guide columns, one of the guide columns is vertically arranged on the top surface of the injection mould lower mould, and the other guide column is transversely arranged on one side of the accommodating groove.

[0008] The conversion component comprises a switching column vertically arranged on the inner side wall of the accommodating groove and having an empty cavity, and two positioning blocks one are fixed on the rod of the switching column at an angle of 90 degrees, and the two positioning blocks one are respectively and detachably connected with the two guide columns.

[0009] Preferably, a notch is arranged at one end of the guide column away from the locating block one, an insertion channel is arranged in the inner wall of the guide column and communicates with the notch, a locating column is slidably arranged in the insertion channel, one end of the locating column penetrates into the notch and is fixed with a locating block two, an avoiding slot is arranged in the inner wall of the innermost side of the notch and communicates with the insertion channel, and the avoiding slot is matched with the locating block two.

[0010] Preferably, the other end of the locating column penetrates into the switching column and is fixed with a first bevel gear, a transmission rod is transversely arranged in the inner cavity of the switching column, one end of the transmission rod is fixed with a second bevel gear which is engaged with the first bevel gear, and the other end of the transmission rod penetrates out of the switching column.

[0011] Preferably, a locking piece which is in contact with the outer wall of the lower mold of the injection mold is tightly sleeved on the shank of the switching column, two thread holes which are distributed at ninety degrees are arranged on the locking piece, a positioning screw is threadedly arranged in one of the thread holes, and a positioning hole which is matched with the positioning screw is arranged on the outer wall of the lower mold of the injection mold.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] (1) Through the arrangement of the switching type guide mechanism, when the upper and lower molds are closed, the guide column which stands on the top surface of the lower mold of the injection mold penetrates into the positioning hole of the upper mold, so that the upper and lower molds can be accurately closed. Once the surface of the standing guide column is seriously worn after long-term use, the two guide columns can be switched by ninety degrees by using the conversion part, the guide column which is transversely arranged in the inner side of the accommodating groove can be quickly switched to the top surface of the lower mold of the injection mold, and the worn guide column can be turned into the inner side of the accommodating groove to be hidden. Compared with the direct bolted connection between the guide column and the lower mold of the injection mold in the prior art, the worn guide column can be replaced in a short time, the working efficiency is improved, and the practicality is enhanced.

[0014] (2) Through the arrangement of the transmission rod, the locating column and the locating block two, if both of the two guide columns are completely worn after a certain period of use, the second bevel gear can be engaged with the first bevel gears on the two locating columns by rotating the transmission rod, the two locating columns can be synchronously rotated by force, the corresponding locating block two can be turned to the position corresponding to the avoiding slot, the locking of the two guide columns can be synchronously released, the guide column can be removed from the locating column by sliding the guide column, and the guide column can be replaced, so that the working efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 Structure diagram of switching type guiding mechanism of the utility model;

[0017] Figure 3 Structure diagram of switching type guiding mechanism of the utility model Figure 2 Structure diagram of A place in the middle;

[0018] Figure 4 Structure diagram of inside structure of switching column of the utility model.

[0019] Marked number in the drawing is:

[0020] 1, injection mold lower mold; 2, containing groove; 3, guiding column; 4, switching column; 5, positioning block one; 6, locking piece; 7, positioning screw; 8, notch; 9, positioning column; 10, positioning block two; 11, avoiding groove; 12, first bevel gear; 13, transmission rod; 14, second bevel gear. Specific implementation

[0021] The following description is used to disclose the utility model so that those skilled in the art can realize the utility model. The preferred embodiments in the following description are only as examples, and other obvious variants can be thought of by those skilled in the art.

[0022] Referring to Figure 1-4 As shown in the figure, a kind of blowing dust cover mold, including injection mold lower mold 1, two containing grooves 2 are symmetrically set on the top surface of injection mold lower mold 1, and switching type guiding mechanism is built-in in containing groove 2.

[0023] Switching type guiding mechanism includes two guiding columns 3 that are distributed at ninety degrees and conversion component between two guiding columns 3, one guiding column 3 is erected on the top surface of injection mold lower mold 1, and the other guiding column 3 is transverse to the inside of containing groove 2;

[0024] By the setting of switching type guiding mechanism, when upper and lower molds are combined, the guiding column 3 erected on the top surface of injection mold lower mold 1 is inserted into the positioning hole of upper mold, to ensure that upper and lower molds can be accurately combined, once long-term use, when the surface of the guiding column 3 erected is seriously worn, only need to use conversion component, ninety-degree conversion two guiding columns 3, the guiding column 3 transverse to the inside of containing groove 2 can be quickly switched to the top surface of injection mold lower mold 1, and the worn guiding column 3 is converted into the inside of containing groove 2 to hide, so compared with the direct bolt fixed connection mode between guiding column 3 and injection mold lower mold 1 in prior art, the replacement of worn guiding column 3 can be conveniently realized in short time, work efficiency is improved, and practicality is enhanced.

[0025] Specifically, referring to Figure 1 、 Figure 2 And Figure 4As shown, it is worth mentioning that the conversion component includes a switching column 4 vertically arranged on the inner side wall of the accommodating groove 2, and two positioning blocks I 5 are fixed on the rod of the switching column 4 at 90 degrees. The two positioning blocks I 5 are respectively and correspondingly detachably connected with the two guide columns 3.

[0026] Through the arrangement of the conversion component, only a simple 90-degree knob switching column 4 is needed, and the switching column 4 can convert the two guide columns 3 by 90 degrees.

[0027] Further, referring to Figure 1 and Figure 2 As shown, it is worth mentioning that the rod of the switching column 4 is sleeved with a locking piece 6 in contact with the outer wall of the lower mold 1 of the injection mold, and two threaded holes distributed at 90 degrees are formed in the locking piece 6. One of the threaded holes is threadedly provided with a positioning screw 7, and a positioning hole matched with the positioning screw 7 is formed in the outer wall of the lower mold 1 of the injection mold.

[0028] When the switching column 4 is rotated by 90 degrees, one of the threaded holes in the locking piece 6 can be moved to a position corresponding to the positioning hole, and then the positioning screw 7 is screwed into the threaded hole, and the positioning screw 7 is inserted into the positioning hole. Thus, the positioning screw 7 cooperates with the positioning hole to fix the switching column 4, thereby ensuring the stability of the guide column 3 after switching.

[0029] Further, referring to Figure 2 , Figure 3 and Figure 4 As shown, it is worth mentioning that the end of the guide column 3 away from the positioning block I 5 is provided with a notch 8, and the inner wall of the guide column 3 is provided with a plug-in channel communicated with the notch 8. A positioning column 9 is slidably arranged in the plug-in channel, one end of the positioning column 9 penetrates into the notch 8 and is fixed with a positioning block II 10. An avoiding groove 11 communicated with the plug-in channel is formed in the inner wall of the innermost side of the notch 8, and the avoiding groove 11 is matched with the positioning block II 10.

[0030] The other end of the positioning column 9 penetrates into the switching column 4 and is fixed with a first bevel gear 12. A transmission rod 13 is transversely arranged in the inner cavity of the switching column 4. One end of the transmission rod 13 is fixed with a second bevel gear 14 engaged with the first bevel gear 12, and the other end of the transmission rod 13 penetrates out of the switching column 4.

[0031] Through the setting of the transmission rod 13, the positioning column 9 and the positioning block two 10, if two guide columns 3 are completely worn out after being used for a certain time, only need to rotate the transmission rod 13, so that the second bevel gear 14 is engaged with the first bevel gear 12 on the two positioning columns 9, so that the two positioning columns 9 are synchronously rotated under force, the corresponding positioning block two 10 is turned to the position corresponding to the avoiding groove 11, that is, the locking on the two guide columns 3 is synchronously released, only need to slide the guide column 3, and the guide column 3 is withdrawn from the positioning column 9, so that the guide column 3 can be replaced, and the working efficiency is improved.

[0032] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by the person skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only the principles of the utility model. The utility model can have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope required by the utility model is defined by the appended claims and their equivalents.

Claims

1. A blow molded dust cover mold, characterized in that: It comprises an injection mold lower mold (1), wherein two receiving grooves (2) are symmetrically provided on both sides of the top surface of the injection mold lower mold (1), and the receiving grooves (2) are built with a switching guide mechanism; The switchable guide mechanism comprises two guide posts (3) distributed at a 90-degree angle and a conversion component located between the two guide posts (3), wherein one of the guide posts (3) is erected on the top surface of the lower mold (1) of the injection mold, and the other guide post (3) is transverse to one side of the interior of the accommodating groove (2); The conversion component comprises a switching column (4) with a cavity inside and vertically rotated on the inner wall of the accommodating groove (2); two positioning blocks (5) are fixed on the rod body of the switching column (4) at a 90-degree angle; the two positioning blocks (5) are respectively detachably connected to the two guide columns (3) in a one-to-one correspondence.

2. A blow molded dust cover mold according to claim 1, characterized in that: A notch (8) is provided at one end of the guide column (3) away from the positioning block (5), an insertion channel connected to the notch (8) is passed through the inner wall of the guide column (3), a positioning column (9) is slidably arranged in the insertion channel, one end of the positioning column (9) penetrates into the notch (8) and is fixed with the positioning block (10), an avoidance groove (11) connected to the insertion channel is provided on the innermost inner wall of the notch (8), and the avoidance groove (11) is adapted to the positioning block (10).

3. A blow molded dust cover mold according to claim 2, characterized in that: The other end of the positioning column (9) rotates and penetrates into the switching column (4) and is fixed with a first bevel gear (12). A transmission rod (13) is transversely arranged in the inner cavity of the switching column (4). One end of the transmission rod (13) is fixed with a second bevel gear (14) meshing with the first bevel gear (12). The other end of the transmission rod (13) rotates and penetrates out of the switching column (4).

4. A blow molded dust cover mold according to claim 1, characterized in that: A locking plate (6) in contact with the outer wall of the lower mold (1) of the injection mold is fastened and sleeved on the rod body of the switching column (4), and the locking plate (6) is provided with two threaded holes distributed at ninety degrees, one of the threaded holes is threaded with a positioning screw (7), and a positioning hole adapted to the positioning screw (7) is provided on the outer wall of the lower mold (1) of the injection mold.

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