Cavity forming and pressing device

Abstract

The utility model belongs to the field of laser system application of xenon lamp pumping cavities, and discloses a cavity forming and pressing device which comprises a lower die assembly used for containing raw materials and shaping the shape of a cavity and further comprises a supporting assembly used for supporting downward pressing forming and rotating switching forming stations. The top of the supporting assembly is provided with a downward pressing assembly used for step-by-step pressing forming, the lower die assemblies are arranged below the downward pressing assembly, and the number of the lower die assemblies is five. The supporting assembly comprises a supporting table, and a rotating structure is arranged on the supporting table. According to the cavity forming and pressing device disclosed by the utility model, polytetrafluoroethylene powder is pressed to form a light-gathering cavity through the arrangement of two times of feeding and two times of pressing, so that the production of a light-gathering cavity structure is realized; through the arrangement of five-position alternation and step-by-step pressing, the five steps of pressing forming are conducted at the same time, and the production speed is increased; and through the arrangement of supporting and downward-pressing forming, downward-pressing forming is supported from the bottom, and the stability of downward-pressing forming is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the laser system application field of xenon lamp pumping cavity, especially relates to a cavity forming and pressing device. BACKGROUND

[0002] In the laser system application of xenon lamp pumping cavity, the design structure of pumping cavity and the light efficiency and light characteristics of laser output have a very important relationship. Pumping cavity mainly has ceramic cavity, metal cavity glass cavity and various cavity material structures. The ceramic cavity widely used in the market has many problems such as high processing cost (forming, firing, glazing, etc.) and less cavity model selection (due to the complexity of the processing technology).

[0003] The polytetrafluoroethylene cavity has many advantages such as convenient material selection, simple manufacturing, stable optical characteristics and high reflectivity, and is widely used in the design of laser system. However, in the design of laser system, the application of the light collecting cavity involves many problems such as the structure and type of the designed laser, and the existing products on the market cannot fully meet the design and use requirements. Therefore, a new device needs to be designed. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a cavity forming and pressing device to solve the problems in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A cavity forming and pressing device comprises a lower die assembly for accommodating raw materials and shaping the cavity shape, and a support assembly for supporting the lower pressing forming and rotating switching forming station, the support assembly is provided with a lower pressing assembly for step-by-step pressing forming on the top, and the lower die assembly is arranged below the lower pressing assembly and is provided with five;

[0007] The support assembly comprises a support table, a rotating structure is arranged on the upper surface of the support table, four support frames are arranged around the rotating structure, two upper top structures are symmetrically arranged on the lower surface of the support table, and a clearance hole is formed in the position corresponding to the support table and the upper top structure;

[0008] The lower pressing assembly comprises four second hydraulic cylinders, two feeding structures, a long pressing head and a short pressing head are respectively arranged at the bottom of the four second hydraulic cylinders, the long pressing head and the short pressing head are diagonally distributed, and the two feeding structures are diagonally distributed.

[0009] Further, the lower die assembly comprises a bottom plate, a pressing pipe is fixed on the upper surface of the bottom plate, a fixing ring is arranged at the bottom of the pressing pipe, an inner core is inserted and pulled into the fixing ring, and a top core hole is arranged at the lower surface of the inner core.

[0010] Further, the upper top structure comprises a first hydraulic cylinder, and a supporting plate is arranged at the top end of the first hydraulic cylinder.

[0011] Further, the feeding structure comprises an outer pipe, a feeding pipe is arranged on one side of the outer pipe, and an inner pipe is arranged in the outer pipe.

[0012] Further, the two letting go holes correspond to the positions of the long pressure head and the short pressure head respectively.

[0013] Further, the rotating structure comprises a rotating table, a rotating motor is arranged under the rotating table, five fixing holes are uniformly arranged on the rotating table, and the bottom plate is clamped with the fixing holes.

[0014] Compared with the prior art, the beneficial effects are:

[0015] 1. The polytetrafluoroethylene powder is pressed into a light-capturing cavity through twice feeding and twice pressing, so that the light-capturing cavity structure is produced;

[0016] 2. The five steps of pressing are carried out at the same time through the five rotating and step-by-step pressing, so that the production speed is improved;

[0017] 3. The bottom pressing is supported from the bottom through the supporting bottom pressing, so that the stability of the bottom pressing is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic view of the cavity forming and pressing device.

[0019] Figure 2 is an axonometric view of the cavity forming and pressing device.

[0020] Figure 3 is a lower die assembly schematic view of the cavity forming and pressing device.

[0021] Figure 4 is a supporting assembly schematic view of the cavity forming and pressing device.

[0022] Figure 5 is a supporting assembly bottom structure schematic view of the cavity forming and pressing device.

[0023] Figure 6 is a pressing assembly schematic view of the cavity forming and pressing device.

[0024] In the drawing marks: 101, bottom plate; 102, pressing pipe; 103, inner core; 104, fixing ring; 105, top core hole; 201, support table; 202, support frame; 203, rotating table; 204, fixing hole; 205, let go of the hole; 206, rotating motor; 207, first hydraulic cylinder; 208, supporting plate; 301, second hydraulic cylinder; 302, long pressing head; 303, short pressing head; 304, outer pipe; 305, feeding pipe; 306, inner pipe. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] Please refer to Figures 1-6 A cavity forming and pressing device comprises a lower die assembly for containing raw materials and shaping a cavity shape, and a support assembly for supporting a lower pressing forming station and a rotating switching forming station. The support assembly is provided with a lower pressing assembly for step-by-step pressing forming at the top. The lower die assembly is arranged below the lower pressing assembly and is provided with five.

[0027] In the embodiment, the lower die assembly comprises a bottom plate 101. The bottom plate 101 is fixed with a pressing pipe 102. The bottom of the pressing pipe 102 is provided with a fixing ring 104. The fixing ring 104 is inserted and pulled to be mounted with an inner core 103. The inner core 103 is provided with a top core hole 105 below. The bottom plate 101 fixes the inner core 103 inside the pressing pipe 102 through the fixing ring 104, so as to form a lower die for pressing forming. After pressing is completed, the inner core 103 is lifted out through the top core hole 105, so as to facilitate the taking out of the cavity product.

[0028] In the embodiment, the supporting assembly comprises a supporting table 201, a rotating structure is arranged on the supporting table 201, four supporting frames 202 are arranged around the rotating structure, two upper top structures are symmetrically arranged on the lower surface of the supporting table 201, the supporting table 201 is provided with a gap hole 205 at a position corresponding to the upper top structure, the rotating structure comprises a rotating table 203, a rotating motor 206 is installed on the lower surface of the rotating table 203, five fixing holes 204 are uniformly arranged on the rotating table 203, the bottom plate 101 is clamped with the fixing holes 204, the upper top structure comprises a first hydraulic cylinder 207, a supporting plate 208 is installed on the top end of the first hydraulic cylinder 207, the pressing pipe 102 is clamped and installed in the fixing hole 204 on the rotating table 203 through the bottom plate 101, so that the supporting table 201 can support the rotating motor 206 to drive the rotating table 203 to rotate and drive the pressing pipe 102 to rotate and switch, when pressing, the first hydraulic cylinder 207 is elongated to drive the supporting plate 208 to rise, the supporting plate 208 is tightly attached to the lower surface of the bottom plate 101 through the gap hole 205 and the fixing hole 204, and the pressing is supported;

[0029] In the embodiment, the pressing assembly comprises four second hydraulic cylinders 301, two feeding structures, a long pressing head 302 and a short pressing head 303 are respectively installed at the bottom of the four second hydraulic cylinders 301, the long pressing head 302 and the short pressing head 303 are diagonally distributed, and the two feeding structures are diagonally distributed, the feeding structure comprises an outer pipe 304, a feeding pipe 305 is arranged on one side of the outer pipe 304, an inner pipe 306 is arranged in the outer pipe 304, the two gap holes 205 are respectively arranged above and below the positions of the long pressing head 302 and the short pressing head 303, when the pressing pipe 102 moves to the lower surface of the outer pipe 304, the supporting frame 202 supports the second hydraulic cylinder 301 to elongate and make the rear outer pipe 304 tightly attached to the top of the pressing pipe 102, the inner pipe 306 is sleeved on the top of the inner core 103, and the feeding pipe 305 at the position is injected with polytetrafluoroethylene powder, so that the polytetrafluoroethylene powder enters the pressing pipe 102 through the gap between the inner pipe 306 and the outer pipe 304 to feed, after the feeding is completed, the second hydraulic cylinder 301 is elongated to drive the long pressing head 302 or the short pressing head 303 to move downward to press and form the polytetrafluoroethylene powder in the pressing pipe 102.

[0030] Working principle: the pressing pipe 102 is clamped and installed in the fixed hole 204 on the rotating table 203 through the bottom plate 101, the inner core 103 is plug-in installed inside the pressing pipe 102 through the fixed ring 104, and a lower die of pressing forming is formed; when in use, the support table 201 supports the rotating motor 206 to drive the rotating table 203 to drive the pressing pipe 102 to rotate and switch, when the pressing pipe 102 rotates to below the outer pipe 304 at the rear, the support frame 202 supports the second hydraulic cylinder 301 to extend to make the outer pipe 304 at the rear downward adhere to the top of the pressing pipe 102, make the inner pipe 306 cover the top of the inner core 103, and inject the polytetrafluoroethylene powder into the feeding pipe 305 at the position, make the polytetrafluoroethylene powder enter the pressing pipe 102 through the gap between the inner pipe 306 and the outer pipe 304, and first feeding is carried out; then the rotating table 203 rotates, the pressing pipe 102 after first feeding is completed is rotated to below the long pressing head 302, the second hydraulic cylinder 301 is extended to make the long pressing head 302 move downward, the polytetrafluoroethylene powder in the pressing pipe 102 is preliminarily pressed, at the same time, the first hydraulic cylinder 207 is extended to drive the supporting plate 208 to rise, the supporting plate 208 is upward through the let-in hole 205 and the fixed hole 204 to adhere to below the bottom plate 101, and the pressing is supported; then the pressing pipe 102 after preliminary pressing is completed is rotated to below the outer pipe 304 at the front, and the outer pipe 304 at the front is secondly fed through the above steps; then the pressing pipe 102 after second feeding is completed is rotated to below the short pressing head 303, the short pressing head 303 is secondly pressed to the polytetrafluoroethylene powder inside under the support of the supporting plate 208, and the polytetrafluoro cavity is pressed and formed; finally, the pressing pipe 102 after forming is rotated to an idle position, at this time, the pressing pipe 102 is taken down, the inner core 103 is ejected through the top core hole 105, and the cavity product in the pressing pipe 102 is taken out; the device is provided with five pressing pipes 102, and when producing, one feeding, preliminary pressing, second feeding, second pressing and unloading five processes can be simultaneously carried out, so that the production speed is improved.

[0031] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A cavity forming press apparatus comprising a lower die assembly for receiving a raw material and for shaping a cavity, characterised in that: Also include a support assembly for supporting the lower compression and rotation switching forming station, the support assembly top is provided with a lower compression assembly for step pressing forming, the lower die assembly is arranged below the lower compression assembly, and is provided with five; The support assembly comprises a support table (201), a rotating structure is arranged on the support table (201), four support frames (202) are arranged around the rotating structure, two upper top structures are symmetrically arranged on the lower surface of the support table (201), and a position corresponding to the upper top structure is provided with a position giving hole (205) on the support table (201); The lower compression assembly comprises four second hydraulic cylinders (301), two feeding structures, a long compression head (302) and a short compression head (303) are respectively arranged at the bottom of the four second hydraulic cylinders (301), the long compression head (302) and the short compression head (303) are diagonally distributed, and the two feeding structures are diagonally distributed.

2. A cavity forming press apparatus according to claim 1, wherein: The lower die assembly comprises a bottom plate (101), a pressing pipe (102) is fixed on the upper surface of the bottom plate (101), a fixing ring (104) is arranged on the inner bottom of the pressing pipe (102), an inner core (103) is inserted and pulled in the fixing ring (104), and a top core hole (105) is arranged on the lower surface of the inner core (103).

3. A cavity forming press apparatus according to claim 1, wherein: The upper top structure comprises a first hydraulic cylinder (207), and a supporting plate (208) is arranged at the top end of the first hydraulic cylinder (207).

4. A cavity forming press apparatus according to claim 1, wherein: The feeding structure comprises an outer pipe (304), a feeding pipe (305) is arranged on one side of the outer pipe (304), and an inner pipe (306) is arranged in the outer pipe (304).

5. The cavity forming press apparatus of claim 1, wherein: The two position giving holes (205) correspond to the positions of the long compression head (302) and the short compression head (303) in up and down direction.

6. A cavity forming press apparatus according to claim 2, wherein: The rotating structure comprises a rotating table (203), a rotating motor (206) is arranged on the lower surface of the rotating table (203), five fixing holes (204) are uniformly arranged on the rotating table (203), and the bottom plate (101) and the fixing holes (204) are connected together.

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