Large-angle pitched roof mold structure with auxiliary rod and application method

Abstract

The invention relates to a large-angle pitched roof mold structure with an auxiliary rod and an application method, the large-angle pitched roof mold structure comprises a pitched roof rod and the pitched roof auxiliary rod and further comprises a telescopic sleeve, the telescopic sleeve comprises a plurality of sleeving buckles, and the adjacent sleeving buckles are kept in relative positions through elastic pieces; the sleeving buckle comprises a sheet-shaped body, a first via hole and a second via hole are formed in the sheet-shaped body, and a first pressure-bearing ring and a second pressure-bearing ring are arranged in the first via hole and the second via hole respectively; the angle ejector rod is obliquely ejected out under the guiding effect of the telescopic sleeve, the multiple sheet-shaped bodies serve as fulcrums, and stress of the angle ejector rod is dispersed through the first pressure bearing ring and the second pressure bearing ring. When the sheet-shaped body at the uppermost end is in contact with the rear mold, the plurality of elastic pieces are compressed, the telescopic sleeve shrinks, and when the angle ejector rod finishes the ejection action and then resets, the plurality of elastic pieces recover deformation, and the telescopic sleeve recovers; by applying the method provided by the invention, the stress on the rod body of the angle ejector rod can be greatly dispersed, and the strength of the angle ejector rod can be well improved.

Description

Technical Field

[0001] The invention relates to the technical field of injection molds, and more specifically to a large-angle inclined top mold structure with an auxiliary rod and an application method thereof. Background Art

[0002] In injection molds, the lifter is a common component, and its function is often used to eject the plastic products after molding. Usually, the angle of the lifter is in the range of 3-12 degrees. When the angle of the lifter is required to exceed 12 degrees (such as 15 degrees), there will be higher requirements for the strength of the lifter. In order to cope with this situation, an auxiliary lifter rod is often designed in the existing design to disperse the force. For example, Chinese application No. CN202023317117.2 provides an automobile mold with a large-angle lifter auxiliary rod structure, in which an auxiliary lifter rod structure is designed. Although this structure can The strength of the inclined top is improved to a certain extent, but the strength improvement is very limited. After force analysis, it can be clearly seen that after designing the inclined top auxiliary rod as mentioned above, the difference between the inclined top and the previous structure without the inclined top auxiliary rod is that a guide block is added to the middle part of the inclined top (not at both ends) as a fulcrum (the fulcrum is movable), but the strength increased by a single fulcrum is relatively limited, and the strength of the rod body part between the lower end of the inclined top and the fulcrum is still not high, and there is still a risk of being bent. A large-angle inclined top mold structure with an auxiliary rod and an application method that can improve this problem are needed. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a large-angle inclined top mold structure with auxiliary rods in view of the above-mentioned defects of the prior art, and also provide an application method of the large-angle inclined top mold structure with auxiliary rods.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] A large-angle inclined ejector mold structure with an auxiliary rod is constructed, comprising an inclined ejector rod and an inclined ejector auxiliary rod, the inclined ejector rod and the inclined ejector auxiliary rod are parallel, the inclined ejector auxiliary rod is fixedly connected to the mold, and further comprising a telescopic sleeve, the telescopic sleeve comprising a plurality of socket buckles, adjacent socket buckles are maintained in relative position by elastic members; the socket buckles comprise a sheet-like body, a first through hole for the inclined ejector rod to pass through and a second through hole for the inclined ejector auxiliary rod to pass through are provided on the sheet-like body, a first pressure ring and a second pressure ring are respectively arranged inside the first through hole and inside the second through hole; the thickness of the first pressure ring and the thickness of the second pressure ring are both greater than the thickness of the sheet-like body, and the size of the first pressure ring and the size of the second pressure ring respectively match the size of the inclined ejector rod and the size of the inclined ejector auxiliary rod.

[0006] The large-angle inclined top mold structure with an auxiliary rod described in the present invention, wherein, among the three continuous sheet-like bodies, the topmost one is fixed with a first rack parallel to the inclined top auxiliary rod, the middle one is rotatably provided with a gear, and the bottommost one is fixed with a second rack parallel to the inclined top auxiliary rod, and the first rack and the second rack are respectively located on both sides of the gear and are both meshed with the gear.

[0007] The large-angle inclined top mold structure with an auxiliary rod described in the present invention, wherein the gear is rotatably arranged on the sheet-like body through a rotating shaft, and the elastic member includes a torsion spring, and the torsion springs are correspondingly sleeved on the rotating shaft to reset the gear.

[0008] The large-angle inclined top mold structure with an auxiliary rod described in the present invention, wherein the sheet-like body includes two circular ring parts and a connecting part connecting the two circular ring parts, the first through hole and the second through hole are respectively located on the two circular ring parts, and avoidance grooves are provided on both sides of the connecting part.

[0009] The large-angle inclined top mold structure with auxiliary rods described in the present invention is characterized in that a glass bead for pressing the first rack or the second rack is arranged inside the avoidance groove.

[0010] The large-angle inclined top mold structure with auxiliary rods described in the present invention, wherein the upper end and the lower end of the inclined top auxiliary rod are both provided with fixed connecting seats fixed to the mold.

[0011] The large-angle inclined ejector mold structure with an auxiliary rod described in the present invention is characterized in that a slider is hinged at the lower end of the inclined ejector rod, and the slider is arranged on the ejector plate for transverse sliding. A sliding groove cooperating with the slider is arranged on the ejector plate, and the sliding groove is a through groove and the inclined ejector auxiliary rod passes through the sliding groove.

[0012] An application method of a large-angle inclined top mold structure with an auxiliary rod is applied to the large-angle inclined top mold structure with an auxiliary rod as described above, wherein the method comprises the steps of:

[0013] During assembly, a plurality of sheet bodies are sleeved on the inclined ejector rod and the inclined ejector auxiliary rod, the inclined ejector rod is slidably assembled with the ejector plate, and the inclined ejector auxiliary rod is fixedly assembled with the mold;

[0014] When the mold is opened, the inclined ejector rod is ejected obliquely under the guidance of the telescopic sleeve, and the multiple sheet bodies act as fulcrums and disperse the force on the inclined ejector rod through the first pressure ring and the second pressure ring; when the uppermost sheet body contacts the rear mold, the multiple elastic parts are compressed and the telescopic sleeve contracts, and when the inclined ejector rod completes the ejection action and resets, the multiple elastic parts restore their deformation and the telescopic sleeve recovers.

[0015] The beneficial effects of the present invention are as follows: during assembly, the plurality of sheet bodies are sleeved on the inclined ejector rod and the inclined ejector auxiliary rod, the inclined ejector rod is slidably assembled with the ejector pin plate, and the inclined ejector auxiliary rod is fixedly assembled with the mold; when the mold is opened, the inclined ejector rod is obliquely ejected under the guidance of the telescopic sleeve, and the plurality of sheet bodies serve as fulcrums and disperse the force of the inclined ejector rod through the first pressure ring and the second pressure ring; when the uppermost sheet body contacts the rear mold, the plurality of elastic parts are compressed and the telescopic sleeve is contracted, and when the inclined ejector rod is reset after completing the ejection action, the plurality of elastic parts recover their deformation and the telescopic sleeve recovers;

[0016] By applying the method of the present application, the telescopic sleeve 3 not only acts as a movable guide sleeve, but also provides multiple supporting fulcrums. It is simple to assemble and has good stability. It can also greatly disperse the force on the rod body of the inclined push rod, which can greatly improve the strength of the inclined push rod. In addition, the telescopic sleeve 3 component can be directly applied to inclined push rods of different lengths by relying on its own telescopic performance. For inclined push rods of different thicknesses, it only needs to replace the corresponding first pressure ring, which has excellent versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work:

[0018] Figure 1 It is a schematic diagram of the structure of a large-angle inclined top mold with an auxiliary rod according to a preferred embodiment of the present invention (the rack and pinion structure in the middle of the other side is not shown);

[0019] Figure 2 It is a top view of the sheet body of the inclined top mold structure with auxiliary rods at a large angle according to a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be described clearly and completely in combination with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are partial embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention.

[0021] The large-angle inclined top mold structure with auxiliary rods in the preferred embodiment of the present invention is as follows: Figure 1 See also Figure 2, including an inclined ejector rod 1 and an inclined ejector auxiliary rod 2, the inclined ejector rod 1 and the inclined ejector auxiliary rod 2 are parallel, the inclined ejector auxiliary rod 2 is fixedly connected to the mold, and also includes a telescopic sleeve 3, the telescopic sleeve 3 includes a plurality of sleeve buckles 30, and adjacent sleeve buckles 30 are kept in relative position by elastic members 31; the sleeve buckles 30 include a sheet body 300, the sheet body 300 is provided with a first through hole 301 for the inclined ejector rod 1 to pass through and a second through hole 302 for the inclined ejector auxiliary rod 2 to pass through, a first pressure ring 303 and a second pressure ring 304 are respectively arranged inside the first through hole 301 and inside the second through hole 302; the thickness of the first pressure ring 303 and the thickness of the second pressure ring 304 are both greater than the thickness of the sheet body 300, and the size of the first pressure ring 303 and the size of the second pressure ring 304 match the size of the inclined ejector rod 1 and the size of the inclined ejector auxiliary rod 2 respectively;

[0022] During assembly, the plurality of sheet bodies 300 are sleeved on the inclined ejector rod 1 and the inclined ejector auxiliary rod 2, the inclined ejector rod 1 is slidably assembled with the ejector pin plate 4, and the inclined ejector auxiliary rod 2 is fixedly assembled with the mold; when the mold is opened, the inclined ejector rod 1 is obliquely ejected under the guidance of the telescopic sleeve 3, and the plurality of sheet bodies act as fulcrums and disperse the force of the inclined ejector rod 1 through the first pressure ring 303 and the second pressure ring 304; when the uppermost sheet body 300 contacts the rear mold, the plurality of elastic members 31 are compressed and the telescopic sleeve 3 contracts, and when the inclined ejector rod 1 is reset after completing the ejection action, the plurality of elastic members 31 recover their deformation and the telescopic sleeve 3 recovers;

[0023] By applying the method and technique of the present application, the telescopic sleeve 3 not only plays the role of a movable guide sleeve, but also provides multiple supporting fulcrums, which is simple to assemble and has good stability. It can also greatly disperse the force on the shaft of the inclined ejector rod, which can well improve the strength of the inclined ejector rod.

[0024] In addition, the telescopic sleeve 3 can be directly applied to the inclined ejector rods 1 of different lengths by relying on its own telescopic performance, and only the corresponding first pressure ring 303 needs to be replaced for the inclined ejector rods of different thicknesses, which has excellent versatility.

[0025] Preferably, among the three continuous sheet bodies 300, the top one is fixed with a first rack 305 parallel to the tilting auxiliary rod, the middle one is rotatably provided with a gear 306, and the bottom one is fixed with a second rack 307 parallel to the tilting auxiliary rod. The first rack 305 and the second rack 307 are respectively located on both sides of the gear 306 and are both meshed with the gear 306; the gear 306 is rotatably provided on the sheet body 300 through the rotating shaft 308, and the elastic The member 31 includes a torsion spring, which is sleeved on the rotating shaft 308 in a one-to-one manner to reset the gear 306; the sheet body 300 includes two annular parts 3000 and a connecting part 3001 connecting the two annular parts, the first through hole 301 and the second through hole 302 are respectively located on the two annular parts 3000, and both sides of the connecting part 3001 are provided with an avoidance groove 3002, and the avoidance groove 3002 is provided with a glass bead 3003 for pressing the first rack 305 or the second rack 306;

[0026] This structure can well ensure integrity. Relying on the gear rack structure, any three continuous sheet bodies can maintain equidistant distances when compressed. The elastic parts are very concealed, easy to install, and have good elastic reset reliability. In addition, the rack is not prone to displacement under the clamping action of the gear and glass beads.

[0027] Preferably, the upper and lower ends of the inclined ejector auxiliary rod 2 are both provided with a fixed connecting seat 20 fixed to the mold; the lower end of the inclined ejector rod 1 is hinged with a slider 10, and the slider 10 is horizontally slidably set on the ejector plate 4, and the ejector plate 4 is provided with a slide groove 40 that cooperates with the slider 10, and the slide groove 40 is a through groove and the inclined ejector auxiliary rod 2 passes through the slide groove; the structural layout is reasonable and compact, easy to assemble, and occupies little space.

[0028] An application method of a large-angle inclined top mold structure with an auxiliary rod is applied to the large-angle inclined top mold structure with an auxiliary rod as described above, wherein the method comprises the steps of:

[0029] During assembly, a plurality of sheet bodies are sleeved on the inclined ejector rod and the inclined ejector auxiliary rod, the inclined ejector rod is slidably assembled with the ejector plate, and the inclined ejector auxiliary rod is fixedly assembled with the mold;

[0030] When the mold is opened, the inclined ejector rod is obliquely ejected under the guidance of the telescopic sleeve, and the multiple sheet bodies act as fulcrums and disperse the force on the inclined ejector rod through the first pressure ring and the second pressure ring; when the uppermost sheet body contacts the rear mold, the multiple elastic parts are compressed and the telescopic sleeve contracts, and when the inclined ejector rod completes the ejection action and resets, the multiple elastic parts recover their deformation and the telescopic sleeve recovers;

[0031] By applying the method and technique of the present application, the assembly is simple and the stability is good, and the force on the shaft of the inclined ejector rod can be greatly dispersed, which can greatly improve the strength of the inclined ejector rod.

[0032] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A large-angle lift mold structure with an auxiliary rod, comprising a lift rod and a lift auxiliary rod, wherein the lift rod and the lift auxiliary rod are parallel, and the lift auxiliary rod is fixedly connected to the mold, characterized in that: It also includes a telescopic sleeve, which includes a plurality of socket buckles, and adjacent socket buckles are maintained in relative position by elastic members; the socket buckles include a sheet-like body, and a first through hole for the inclined lift rod to pass through and a second through hole for the inclined lift auxiliary rod to pass through are provided on the sheet-like body, and a first pressure-bearing ring and a second pressure-bearing ring are respectively arranged inside the first through hole and inside the second through hole; the thickness of the first pressure-bearing ring and the thickness of the second pressure-bearing ring are both greater than the thickness of the sheet-like body, and the size of the first pressure-bearing ring and the size of the second pressure-bearing ring respectively match the size of the inclined lift rod and the size of the inclined lift auxiliary rod.

2. The large-angle inclined top mold structure with auxiliary rod according to claim 1 is characterized in that: Among the three continuous sheet-like bodies, the top one is fixed with a first rack parallel to the tilting top auxiliary rod, the middle one is rotatably provided with a gear, and the bottom one is fixed with a second rack parallel to the tilting top auxiliary rod, the first rack and the second rack are respectively located on both sides of the gear and are both meshed with the gear.

3. The large-angle inclined top mold structure with auxiliary rod according to claim 2 is characterized in that: The gear is rotatably arranged on the sheet-like body via a rotating shaft, and the elastic member comprises a torsion spring, which is sleeved on the rotating shaft in a one-to-one correspondence to reset the gear.

4. The large-angle inclined top mold structure with auxiliary rod according to claim 2 is characterized in that: The sheet-like body includes two annular parts and a connecting part connecting the two annular parts. The first through hole and the second through hole are respectively located on the two annular parts. Avoidance grooves are arranged on both sides of the connecting part.

5. The large-angle inclined top mold structure with auxiliary rod according to claim 4 is characterized in that: A glass bead for pressing the first rack or the second rack is arranged inside the avoidance groove.

6. The large-angle inclined top mold structure with auxiliary rod according to claim 1 is characterized in that: The upper end and the lower end of the tilting lift auxiliary rod are both provided with a fixed connection seat fixed to the mold.

7. The large-angle inclined top mold structure with auxiliary rod according to claim 6 is characterized in that: The lower end of the inclined ejector rod is hinged with a slider, and the slider is transversely slidably arranged on the ejector plate. The ejector plate is provided with a slide groove that cooperates with the slider, and the slide groove is a through groove and the inclined ejector auxiliary rod passes through the slide groove.

8. An application method of a large-angle inclined top mold structure with an auxiliary rod, applied to the large-angle inclined top mold structure with an auxiliary rod as claimed in any one of claims 1 to 7, characterized in that: The method comprises the steps of: During assembly, a plurality of sheet bodies are sleeved on the inclined ejector rod and the inclined ejector auxiliary rod, the inclined ejector rod is slidably assembled with the ejector plate, and the inclined ejector auxiliary rod is fixedly assembled with the mold; When the mold is opened, the inclined ejector rod is ejected obliquely under the guidance of the telescopic sleeve, and the multiple sheet bodies act as fulcrums and disperse the force on the inclined ejector rod through the first pressure ring and the second pressure ring; when the uppermost sheet body contacts the rear mold, the multiple elastic parts are compressed and the telescopic sleeve contracts, and when the inclined ejector rod completes the ejection action and resets, the multiple elastic parts restore their deformation and the telescopic sleeve recovers.

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