CN115352003A

CN115352003A - Support and buckle injection mold

Info

Publication number: CN115352003A
Application number: CN202211020123.2A
Authority: CN
Inventors: 李英
Original assignee: Taizhou Hemu Technology Co ltd
Current assignee: Taizhou Hemu Technology Co ltd
Priority date: 2022-08-24
Filing date: 2022-08-24
Publication date: 2022-11-18

Abstract

The invention discloses a support buckle injection mold which comprises a top plate, a part injection molding mechanism, an integral ejection mechanism and a cooling and heating mechanism, wherein the part injection molding mechanism is arranged on the top plate; the bottom of the top plate is provided with a template, and the bottom of the top plate is fixedly connected with a pressing plate; the part injection molding mechanism is arranged on the template and used for injection molding of the support buckle part; the integral ejection mechanism is arranged on the top of the template; when the injection molding device is used, the top plate is driven to move downwards by external equipment, injection molding raw materials circulate to the cavity and the square groove in the injection molding process of the filler, narrow connection points are formed in the depressions at the connection positions of the cavity and the square groove by the raw materials, the top plate is lifted upwards after cooling molding, the L-shaped plate is lifted upwards under the action of the first spring when losing pressing force, the pressing rod is driven to move upwards, ejection operation is carried out on parts molded in the cavity and the square groove, and the parts can not directly contact part bodies during ejection.

Description

Support and buckle injection mold

Technical Field

The invention relates to the technical field of part injection molds, in particular to a support buckle injection mold.

Background

An injection mold is a tool for producing plastic products; and is also a tool for giving the plastic product complete structure and accurate dimension. Injection molding is a process used to mass produce parts of some complex shapes. Injecting molten plastic into a mold cavity at high pressure by an injection molding machine, cooling and solidifying to obtain a formed product, wherein the injection molding mold is divided into a thermosetting plastic mold and a thermoplastic plastic mold according to the forming characteristics; the molding process includes transfer molding, blow molding, cast molding, thermoforming, hot pressing (compression molding), injection molding, etc.

However, there is certain problem in the injection mold technique of present support buckle part, current injection mold is in the in-service use process, for taking out after the convenience part injection moulding, often can set up ejector pin at the die cavity inner wall, utilize thrust to carry out ejecting with the part after the shaping cooling, this in-process is though ejection part is comparatively convenient and fast in the die cavity, nevertheless the part is ejecting when not reaching cooling temperature and can cause wearing and tearing to the part surface, cause the finished product quality low, and simultaneously, after moulding plastics, part surface edge can produce unnecessary leftover bits, need follow-up polishing treatment or artifical the getting rid of.

Disclosure of Invention

The present invention is directed to an injection mold for a support buckle, so as to solve the problems of the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: an injection mold for a support buckle comprises a top plate, a part injection molding mechanism, an integral ejection mechanism and a cooling and heating mechanism;

the bottom of the top plate is provided with a template, and the bottom of the top plate is fixedly connected with a pressing plate;

the part injection molding mechanism is arranged on the template and used for injection molding of the support buckle part;

the integral ejection mechanism is arranged at the top of the template and is used for supporting integral demoulding and burr bending operation after the buckle part is formed;

the cooling and heating mechanism is arranged in the template and is used for controlling the temperature in the injection molding process.

Preferably, the part injection molding mechanism comprises a pressing plate, the pressing plate is fixedly connected to the bottom of the top plate, cavities are formed in the bottom of the pressing plate and the top of the mold plate, an injection molding channel is arranged inside the top plate, one end of the injection molding channel is located outside the top plate, the other end of the injection molding channel is located on the inner wall of the cavity, a plurality of positioning holes are formed in the top of the mold plate, a plurality of positioning guide pillars are fixedly connected to the bottom of the top plate, and the positioning guide pillars are slidably mounted inside the positioning holes.

Preferably, whole ejection mechanism includes that a plurality of symmetries are seted up the square groove at template top, the opening part one side of square groove with opening part one side of die cavity is linked together, and intercommunication department is sunken form, the inside symmetry of template is equipped with a plurality of U-shaped cavities, the inner wall fixedly connected with deflector of U-shaped cavity, the outside of deflector is equipped with the spout, slidable mounting has the L shaped plate in the spout of deflector, the top of L shaped plate runs through the inside of template, one side fixedly connected with depression bar of L shaped plate, run through the top of depression bar the inside of template, the first spring of bottom fixedly connected with of depression bar, the bottom one end fixed connection of first spring in the interior bottom of U-shaped cavity, and be located the inside of square groove, the bottom symmetry of clamp plate is equipped with a plurality of wire casings, slidable mounting has square pipe in the wire casing, the top fixedly connected with second spring of square pipe, the top one end fixed connection of second spring in the interior top of wire casing, bottom one end fixedly connected with press a pressure section of thick bamboo, the bottom of pressing a section of thick bamboo is equipped with the toper recess, just fixedly connected with the toper arch in the recess.

Preferably, the cooling and heating mechanism includes two defeated oil pipes, two defeated oil pipe symmetry inlays the dress and is in one side of template, the inside of template is equipped with the heating channel of the form of buckling, the both ends and two of heating channel defeated oil pipe is linked together, the water pump is installed to one side of template, two defeated water shells are installed to the top symmetry of template, the inside of defeated water shell is the cavity form, the inside of template is equipped with the cooling channel of the form of buckling, the bottom of defeated water shell is equipped with the apopore, and the apopore with cooling channel is linked together, the delivery port intercommunication of water pump has the raceway, the one end intercommunication of raceway is in one side of defeated water shell.

Preferably, the top of the top plate is fixedly connected with a joint, and a clamping groove is formed in the joint.

Preferably, the bottom of the template is fixedly connected with a plurality of connecting guide posts, the bottom of the template is provided with a base, and the connecting guide posts penetrate through the top of the base.

Preferably, the top plate, the template and the outer part of the base are fixedly connected with fixing rings.

Preferably, the top of roof is equipped with a plurality of screw holes, lock bolt is connected to the screw hole in.

Preferably, the water conveying shell is communicated with a water outlet pipe outside, and one end of the water outlet pipe is located outside the template.

Compared with the prior art, the invention has the beneficial effects that:

1. when the injection molding device is used, the top plate is driven to move downwards through external equipment, injection molding raw materials circulate to the cavity and the square groove in the injection molding process of the filler, narrow connection points are formed in the depressions at the connection positions of the cavity and the square groove by the raw materials, the top plate is lifted upwards after cooling and molding, the L-shaped plate is lifted upwards under the action of the first spring when losing pressing force and drives the pressing rod to move upwards, ejection operation is carried out on parts molded in the cavity and the square groove, the part bodies can not be directly contacted during ejection, and abrasion to the surfaces of the parts during ejection is reduced;

2. when the top plate moves upwards, the square pipe can continuously abut against the top of the recess at the connecting part of the cavity and the square groove under the action of the second spring until the pressing rod pushes the component upwards, the connecting point of the cooled and formed component moves to the conical bulge in the groove of the pressing cylinder and then is broken under stress, so that the component can be automatically pushed out after the component is integrally formed by injection molding, and meanwhile, redundant rim charge can be automatically broken when the component is taken out, and the integrity of the component can be ensured during production.

Drawings

FIG. 1 is a schematic structural view of an injection mold for a support buckle according to the present invention;

FIG. 2 is a schematic structural view of a mold plate in the support buckle injection mold of the present invention;

FIG. 3 is a schematic cross-sectional view of the mold plate and top plate of the support clip injection mold of the present invention;

FIG. 4 is a schematic structural view of an L-shaped plate and a guide plate of the injection mold for a support buckle according to the present invention;

FIG. 5 is a schematic structural view of a square tube and a pressing cylinder in the injection mold of the support buckle of the present invention;

FIG. 6 is an enlarged view of part A of FIG. 2 according to the present invention.

In the figure: 1. a joint; 2. a card slot; 3. locking the bolt; 4. a water pump; 5. a water outlet pipe; 6. a fixing ring; 8. an oil delivery pipe; 9. a base; 10. a template; 11. a top plate; 12. injection molding a channel; 13. connecting the guide post; 14. positioning holes; 15. a water delivery pipe; 16. a water delivery shell; 17. a cooling channel; 18. an L-shaped plate; 19. a first spring; 20. a heating channel; 21. a guide plate; 22. a threaded hole; 23. a pressure lever; 24. a cavity; 25. a square groove; 26. a U-shaped cavity; 27. positioning the guide post; 28. a second spring; 29. pressing a plate; 30. a wire slot; 31. square tubes; 32. pressing the barrel; 33. a groove; 34. a conical projection.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 6, an embodiment of the present invention provides an injection mold for a support buckle, including: the ejection mechanism comprises a top plate 11, a part injection molding mechanism, an integral ejection mechanism and a cooling and heating mechanism.

Wherein, the bottom of the top plate 11 is provided with a template 10, and the bottom of the top plate 11 is fixedly connected with a pressing plate 29;

wherein, the part injection molding mechanism is installed on the mold plate 10, the part injection molding mechanism comprises a pressure plate 29, the pressure plate 29 is fixedly connected to the bottom of the top plate 11, the bottom of the pressure plate 29 and the top of the mold plate 10 are both provided with cavities 24, the inside of the top plate 11 is provided with an injection molding channel 12, one end of the injection molding channel 12 is positioned outside the top plate 11, the other end of the injection molding channel 12 is positioned on the inner wall of the cavity 24, the top of the mold plate 10 is provided with a plurality of positioning holes 14, the bottom of the top plate 11 is fixedly connected with a plurality of positioning guide posts 27, the positioning guide posts 27 are slidably installed inside the positioning holes 14, when in use, the top plate 11 is driven by external equipment to move downwards, so that the bottom of the pressure plate 29 and the cavities 24 at the top of the mold plate 10 are superposed, the cavities 24 are filled through the injection molding channel 12, and a support buckle part is formed by injection molding, in the process, the top plate 11 descends to press the L-shaped plate 18, so that the L-shaped plate 18 moves downwards in the guide plate 21 in the U-shaped cavity 26, the pressure rod 23 on one side is driven to descend into the U-shaped cavity 26 from the square groove 25, meanwhile, the square pipe 31 and the pressing cylinder 32 move downwards and abut against the top of the recess at the joint of the cavity 24 and the square groove 25, in the filling injection molding process, injection molding raw materials circulate into the cavity 24 and the square groove 25 and form a narrow connecting point in the recess at the joint of the cavity 24 and the square groove 25, after cooling molding, the top plate 11 is lifted upwards, when the pressing force of the L-shaped plate 18 is lost, the L-shaped plate is lifted upwards under the action of the first spring 19, the pressure rod 23 is driven to move upwards, and ejection operation is performed on the molded part in the cavity 24 and the square groove 25.

Wherein, the integral ejection mechanism is arranged at the top of the template 10, the integral ejection mechanism comprises a plurality of square grooves 25 symmetrically arranged at the top of the template 10, one side of the opening of the square groove 25 is communicated with one side of the opening of the cavity 24, the communicated part is concave, the inside of the template 10 is symmetrically provided with a plurality of U-shaped cavities 26, the inner wall of the U-shaped cavity 26 is fixedly connected with a guide plate 21, the outside of the guide plate 21 is provided with a sliding groove, an L-shaped plate 18 is slidably arranged in the sliding groove of the guide plate 21, the top of the L-shaped plate 18 penetrates through the inside of the template 10, one side of the L-shaped plate 18 is fixedly connected with a pressure lever 23, the top of the pressure lever 23 penetrates through the inside of the template 10, the bottom of the pressure lever 23 is fixedly connected with a first spring 19, one end of the bottom of the first spring 19 is fixedly connected with the inner bottom of the U-shaped cavity 26 and is positioned in the square groove 25, the bottom of the pressure lever 29 is symmetrically provided with a plurality of wire grooves 30, a square pipe 31 is slidably mounted in the wire groove 30, the top of the square pipe 31 is fixedly connected with a second spring 28, one end of the top of the second spring 28 is fixedly connected with the inner top of the wire groove 30, one end of the bottom of the square pipe 31 is fixedly connected with a pressing cylinder 32, the bottom of the pressing cylinder 32 is provided with a groove 33, and a conical bulge 34 is fixedly connected in the groove 33, when the top plate 11 moves upwards, the square pipe 31 can continuously abut against the top of the recess at the connecting part of the cavity 24 and the square groove 25 under the action of the second spring 28 until the part is ejected upwards by the pressing rod 23, the part is automatically ejected after the part is molded by injection molding after the connecting point after cooling molding of the part moves to the conical bulge 34 in the groove 33 of the pressing cylinder 32 and then is broken under stress, and the part can be ejected automatically after the part is ejected without directly contacting with the part body during ejection, so that the abrasion to the surface of the part during ejection is reduced, meanwhile, when the component is taken out, redundant rim charge can be automatically broken, so that the integrity of the component can be ensured during production.

The cooling and heating mechanism is installed inside the template 10, the cooling and heating mechanism comprises two oil delivery pipes 8, the two oil delivery pipes 8 are symmetrically embedded in one side of the template 10, a bent heating channel 20 is arranged inside the template 10, two ends of the heating channel 20 are communicated with the two oil delivery pipes 8, a water pump 4 is installed on one side of the template 10, two water delivery shells 16 are symmetrically installed at the top of the template 10, the inside of each water delivery shell 16 is hollow, a bent cooling channel 17 is arranged inside the template 10, water outlets are formed in the bottoms of the water delivery shells 16 and are communicated with the cooling channel 17, water outlets of the water pump 4 are communicated with a water delivery pipe 15, one end of the water delivery pipe 15 is communicated with one side of the water delivery shell 16, when injection molding operation is carried out, the oil delivery pipes 8 can be communicated with external heat conduction oil delivery equipment, heat conduction oil is utilized to circulate in the heating channel 20, the temperature is raised, when the temperature is too high, external cooling liquid is extracted by the water pump 4, the cooling liquid is input into the water delivery shells 16 through the water delivery shells, uniform circulation of the water outlets in the cooling channel 17, the water delivery shells 5 is discharged by the water outlet pipe 5, and the water outlet pipe 5 is communicated with the water outlet pipe 5.

As shown in fig. 1 to 6, a connector 1 is fixedly connected to the top of the top plate 11, a clamping groove 2 is arranged on the connector 1, and an external lifting driving device is fixedly connected through the connector 1 and the clamping groove 2, so that lifting driving of the top plate 11 is realized; the bottom of the template 10 is fixedly connected with a plurality of connecting guide posts 13, the bottom of the template 10 is provided with a base 9, the connecting guide posts 13 penetrate through the top of the base 9, and the connecting guide posts 13 can penetrate through the bases 9 with different quantities and heights when in use, so that the height control of the bottom of the mold is realized; the fixing rings 6 are fixedly connected to the outer portions of the top plate 11, the template 10 and the base 9, and the fixing rings 6 can be used for conveniently lifting the top plate 11, the template 10 and the base 9; in order to improve the connection strength between the top plate 11 and the external driving device, a plurality of threaded holes 22 are formed in the top of the top plate 11, locking bolts 3 are connected in the threaded holes 22, and the locking bolts 3 can penetrate through a connecting plate of the external driving device to be connected with the threaded holes 22 in the top plate 11.

According to the technical scheme, the working steps of the scheme are summarized and carded: when the injection molding machine is used, the top plate 11 is driven to move downwards through external equipment, the bottom of the pressure plate 29 and the cavity 24 at the top of the template 10 are overlapped, the cavity 24 is filled through the injection molding channel 12, a support buckle part is formed by injection molding, in the process, the top plate 11 descends to press the L-shaped plate 18, the L-shaped plate 18 moves downwards in the guide plate 21 in the U-shaped cavity 26, the pressure rod 23 on one side is driven to descend from the square groove 25 into the U-shaped cavity 26, meanwhile, the square pipe 31 and the pressure cylinder 32 move downwards to abut against the top of a recess at the connection position of the cavity 24 and the square groove 25, in the filling injection molding process, injection molding raw materials flow into the cavity 24 and the square groove 25, the raw materials can form a narrow connection point in the recess at the connection position of the cavity 24 and the square groove 25, after cooling molding, the top plate 11 and the L-shaped plate 18 lift upwards under the pressing force, the action of the first pair of the spring 19 and drive the pressure rod 23 to move upwards, the pressure rod 23 to push out a stressed part in the cavity 24 and the square groove 25, and the stressed part is pushed out, and the connection point of the square groove 25, and the pressure rod 31 and the pressure cylinder 23 moves upwards, when the pressing part loses the pressure, and the top of the pressure rod 11 and the square groove 33, and the pressure cylinder 23 can be continuously broken, and the top of the pressure part 24 and the pressure cylinder, and the top of the pressure cylinder 33, and the pressure cylinder can be automatically broken, and the top of the ejection groove 25, and the ejection part, and the ejection groove, and the ejection part can be automatically broken part, and the ejection groove 33, and the ejection part can be automatically broken part can be automatically, and the ejection groove 33 of the ejection part can be automatically broken part, and the ejection part can be automatically formed part, and the ejection groove 33;

when the injection molding operation is carried out, the oil delivery pipe 8 can be communicated with external heat conduction oil conveying equipment, heat conduction oil is utilized to circulate in the heating channel 20, so that the temperature is increased, when the temperature is too high, external cooling liquid is extracted by the water pump 4, the cooling liquid is input into the water delivery shell 16 through the water delivery pipe 15, and the cooling liquid uniformly circulates into the cooling channel 17 through the water outlet hole in the bottom of the water delivery shell 16, so that the injection molding process of the component can be carried out without directly contacting with a cold and heat source to carry out temperature control, and the quality of the component after molding is improved by utilizing the temperature control.

The parts not involved in the present invention are the same as or can be implemented by the prior art. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a support and detain injection mold, includes roof (11), spare part injection molding mechanism, whole ejection mechanism, cooling heating mechanism, its characterized in that:

the bottom of the top plate (11) is provided with a template (10), and the bottom of the top plate (11) is fixedly connected with a pressing plate (29);

the part injection molding mechanism is arranged on the template (10) and is used for injection molding of the support buckle part;

the integral ejection mechanism is arranged at the top of the template (10) and is used for supporting integral demoulding and burr bending operation after the buckle part is formed;

the cooling and heating mechanism is arranged inside the template (10) and is used for controlling the temperature in the injection molding process.

2. The support buckle injection mold of claim 1, wherein: the part injection molding mechanism comprises a pressing plate (29), wherein the pressing plate (29) is fixedly connected to the bottom of the top plate (11), cavities (24) are formed in the bottom of the pressing plate (29) and the top of the template (10), an injection molding channel (12) is arranged inside the top plate (11), one end of the injection molding channel (12) is located outside the top plate (11), the other end of the injection molding channel (12) is located on the inner wall of the cavities (24), a plurality of positioning holes (14) are formed in the top of the template (10), a plurality of positioning guide pillars (27) are fixedly connected to the bottom of the top plate (11), and the positioning guide pillars (27) are slidably mounted inside the positioning holes (14).

3. The support buckle injection mold of claim 2, wherein: the whole ejection mechanism comprises a plurality of square grooves (25) symmetrically formed in the top of the template (10), one side of an opening of each square groove (25) is communicated with one side of an opening of the cavity (24), a communicating part is sunken, a plurality of U-shaped cavities (26) are symmetrically formed in the inside of the template (10), a guide plate (21) is fixedly connected to the inner wall of each U-shaped cavity (26), a sliding groove is formed in the outer part of the guide plate (21), an L-shaped plate (18) is slidably mounted in the sliding groove of the guide plate (21), the top of each L-shaped plate (18) penetrates through the inside of the template (10), a pressure rod (23) is fixedly connected to one side of each L-shaped plate (18), the top of each pressure rod (23) penetrates through the inside of the template (10), a first spring (19) is fixedly connected to the bottom of the pressure rod (23), one end of the first spring (19) is fixedly connected to the bottom of each U-shaped cavity (26) and is located in the inside of each groove (25), a plurality of wire grooves (30) are symmetrically formed in the bottom of the pressure plate (29), a second square pipe (31) is fixedly connected to the top of each wire groove (30), and a second square pipe (31) and a second spring (31) is fixedly connected to the top of each square pipe (31), the bottom one end fixedly connected with of square pipe (31) presses a section of thick bamboo (32), the bottom of pressing a section of thick bamboo (32) is equipped with recess (33), just fixedly connected with toper arch (34) in recess (33).

4. The support buckle injection mold of claim 1, wherein: cooling and heating mechanism includes two defeated oil pipe (8), two defeated oil pipe (8) symmetry inlays and is in one side of template (10), the inside of template (10) is equipped with heating channel (20) of the form of buckling, the both ends and two of heating channel (20) defeated oil pipe (8) are linked together, water pump (4) are installed to one side of template (10), two water delivery shells (16) are installed to the top symmetry of template (10), the inside of water delivery shell (16) is the cavity form, the inside of template (10) is equipped with cooling channel (17) of the form of buckling, the bottom of water delivery shell (16) is equipped with the apopore, and the apopore with cooling channel (17) are linked together, the delivery port intercommunication of water pump (4) has raceway (15), the one end intercommunication of raceway (15) is in one side of water delivery shell (16).

5. The support buckle injection mold of claim 1, wherein: the top fixedly connected with of roof (11) connects (1), be equipped with draw-in groove (2) on connecting (1).

6. The injection mold for the support buckle according to claim 1, wherein: the bottom of the template (10) is fixedly connected with a plurality of connecting guide columns (13), the bottom of the template (10) is provided with a base (9), and the connecting guide columns (13) penetrate through the top of the base (9).

7. The injection mold for a support buckle according to claim 6, wherein: the top plate (11), the template (10) and the base (9) are fixedly connected with fixing rings (6).

8. The injection mold for the support buckle according to claim 1, wherein: the top of roof (11) is equipped with a plurality of screw holes (22), screw hole (22) in-connection has locking bolt (3).

9. The support buckle injection mold of claim 4, wherein: the water conveying shell (16) is communicated with a water outlet pipe (5) at the outer part, and one end of the water outlet pipe (5) is positioned at the outer part of the template (10).