阅读说明：本技术 花键保护套压制模具 (Pressing die for spline protective sleeve ) 是由 马永红 于 2018-05-31 设计创作，主要内容包括：本发明公开了一种花键保护橡胶套压制模具,包括插销,上模,下模,芯棒,芯棒挡杆,六角头螺钉。上模和下模四角均有插销孔,插销孔与插销相对应,插销不固定在插销孔内,芯棒顶端或末端与金属块焊接,螺钉通过孔焊接在金属块和芯棒档杆上,芯棒档杆上有通孔,芯棒档杆与上模焊接固定,芯棒档杆紧挨金属块底端。以上零件装配后成为花键橡胶套压制模具整体,用于热压花键橡胶套。本发明具有制造易、造价低、上马快、寿命长、效率高的优点。(The invention discloses a spline protection rubber sleeve pressing die which comprises a bolt, an upper die, a lower die, a core rod stop lever and a hexagon screw. The four corners of the upper die and the lower die are provided with bolt holes, the bolt holes correspond to bolts, the bolts are not fixed in the bolt holes, the top end or the tail end of the core rod is welded with the metal block, the screws are welded on the metal block and the core rod stop rod through the holes, the core rod stop rod is provided with through holes and is welded and fixed with the upper die, and the core rod stop rod is close to the bottom end of the metal block. The parts are assembled into a whole of a pressing die for the spline rubber sleeve and are used for hot-pressing the spline rubber sleeve. The invention has the advantages of easy manufacture, low cost, fast installation, long service life and high efficiency.)

1. The utility model provides a spline protection rubber sleeve embossing mold utensil, includes mould (2), lower mould (3) and plug (4), its characterized in that: a bolt (1) is arranged in the upper die (2), a conical bolt hole (101) is arranged at the top end of the bolt (1), the bolt hole (101) corresponds to the bolt (1), the bolt hole (101) is far away from one end of the bolt, the two ends of the core rod (4) are provided with hexagonal head screws (6), the core rod (4) is in a three-section split structure, the three sections of split structures are sequentially and axially arranged from wide to narrow, a metal protective layer (7) is arranged at the top end or the tail end of the core rod (4), the metal protective layer (7) is fixedly connected with the core rod (4) through a through hole by a screw (6), one end of the core rod (4) is provided with a core rod stop rod (5), the screw (6) is welded on the metal protective layer (7) and the core rod stop rod (5) through a hole, the core rod stop rod (5) is provided with a through hole (8), and the core rod stop rod (5) is welded and fixed with the upper die (2).

2. The spline-protecting rubber sleeve pressing die as claimed in claim 1, wherein: the bolt hole (101) penetrates through the upper die (2) and penetrates through two thirds of the lower die (3).

3. The spline-protecting rubber sleeve pressing die as claimed in claim 1, wherein: the bolt (1) is formed by welding two metal cylinders.

Technical Field

The invention belongs to the technical field of hot-pressing rubber pressing dies, and particularly relates to a spline protective sleeve pressing die.

Background

With the development of society, the market competition pressure is higher and higher, industries in many fields gradually use rubber to replace metal, and manufacturers for producing spline protection sleeves are no exception. Although the casting mold produced by using rubber is cheap, the required production cycle time is long, a casting system cannot be recycled, raw materials are consumed more, and the mold is complex; the production period required by the injection mould is short, but the investment cost of equipment is high, and the early investment of many small and medium-sized enterprises cannot bear the burden.

Meanwhile, the existing pressing die is usually not detachable or extremely troublesome to detach, the machine is huge, the occupied area is large, and the cleaning workload is large. The pressure and impact force required by the pressing die when the metal spline is pressed are greatly reduced for the service life of the lower die or the service life of the whole set of machine.

Disclosure of Invention

The invention mainly solves the technical problem of providing a spline protective sleeve pressing die for hot-pressing a spline rubber sleeve so as to solve the problems in the background problem.

To solve the above problems. The invention provides the following technical scheme: the novel metal core rod structure comprises an upper die, a lower die and a core rod, wherein a bolt is arranged in the upper die, a conical bolt hole is formed in the top end of the bolt and corresponds to the bolt, one end of the bolt hole is far away from one end of the bolt, hexagonal screws are arranged at two ends of the core rod, the core rod is of a three-section split structure, the three-section split structure is sequentially arranged from wide to narrow in the axial direction, a metal protective layer is arranged at the top end or the tail end of the core rod and fixedly connected with the core rod through the screws in a perforation mode, a core rod blocking rod is arranged at one end of the core rod, the screws are welded on the metal protective layer and the core rod blocking rod through the holes.

Preferably, the cylinder penetrates through the upper die and penetrates through two thirds of the lower die.

Preferably, the bolt is formed by welding two metal cylinders.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: the required part of this embossing mold utensil is few, and the cost is lower, and easy operation is the very easy starting, and embossing mold utensil four corners has the bolt, runs through the mould and passes two-thirds of lower mould, and the location is accurate, places plastics in the mould heat softening back, reapplies certain pressure with the shaping, and is little to the mould harm, has further improved embossing mold utensil's availability factor to increase of service life, the raw materials of use, the price ratio metal economy of rubber promptly, the resistant loss.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a front view structure of the present invention

FIG. 2 is a top view structure of the present invention

Wherein: 1. a bolt; 2. an upper die; 3. a lower die; 4. a core rod; 5. a core rod stop lever; 6. a hexagonal head screw; 7. and a metal protective layer.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 and 2, a spline protection rubber sleeve pressing mold comprises a bolt, an upper mold, a lower mold, a core rod stop lever and a hexagon screw, which form a whole spline rubber sleeve pressing mold. The bolt hole runs through and goes up the mould, passes two-thirds of lower mould, the bolt hole size highly uniform in four corners, the bolt is not fixed in the bolt hole, it is clean to make things convenient for in the dismantlement, there is the centrum space of handstand bolt downthehole bottom, the buffer pressure effect when suppressing the rubber matrix, there is hexagonal screw thread at the plug both ends for fix in the plug in last mould, also can dismantle, plug shelves pole and last mould welded fastening, the plug shelves pole is close to the plug bottom, during the machine operation, the lower mould is fixed motionless, go up the mould along with bolt up-and-down motion under drive arrangement's effect, plug shelves pole mainly plays the calibration. The invention has the advantages of easy manufacture, low cost, fast installation, long service life and high efficiency.

The difference between the technology and the prior art is that: the pressing die provided by the invention has the advantages that the number of parts is small, the structure is simple, three spline protective sleeves can be pressed at one time, the pressing is carried out in a hot pressing mode, the pressing strength required by rubber is lower than the pressing strength of metal, the rubber protective sleeves are pressed only by one time of up and down reciprocating of the machine, the spline protective sleeves are formed and demoulded, the package and the sale can be carried out immediately after leftover materials are removed, and the machine is convenient to disassemble, clean and maintain, so that the service life of the machine is.

The present disclosure is an exemplification and illustration of the invention and is not intended to limit the advantages attainable thereby, and it is intended that any one or more of the advantages realized in some embodiments and the simple modifications to the structure possible in the practice of the invention are within the scope of the present disclosure.