Wax injection nozzle adjusting device

Abstract

The utility model discloses a wax injection nozzle adjusting device which comprises a nozzle pipe, and a plurality of wax injection adjusting mechanisms are assembled and connected to the nozzle pipe. The wax injection adjusting mechanism comprises a wax injection seat, and a channel communicated with the nozzle pipe is formed in the wax injection seat; an adjusting structure for adjusting the wax injection amount is assembled and connected in the wax injection seat; the adjusting structure comprises an adjusting seat slidably connected into the wax injection seat, a plurality of adjusting plates are fixedly connected to the bottom of the adjusting seat, and material passing holes communicated with the channel are formed in the adjusting plates; the top of the adjusting base is fixedly connected with a plurality of sliding columns for sliding the wax injection base, the tops of the sliding columns are located on the outer side of the wax injection base, and the sliding columns are locked through locking structures. According to the device, the channel through which the wax liquid passes is narrowed in sequence through each wax injection adjusting mechanism, so that the wax injection amount is reduced, the injection pressure is improved, and the wax amount and the injection pressure are rapidly adjusted in a simple and rapid mode.

Description

Technical Field

[0001] The utility model belongs to the technical field of wax model production, and particularly relates to a wax injection nozzle regulating device. Background Art

[0002] Wax mold is the first step in the industrial casting production of accessories. Specifically, the wax mold for producing accessories is formed by pumping high-temperature wax liquid into the mold for casting. The wax mold is then used as a model to produce accessories through subsequent casting processes.

[0003] Since wax casting is extremely simple and can be used to cast accessories with relatively large shapes, and the casting production cost is low, wax casting is widely used in the production process of industrial accessories.

[0004] During the wax casting process, high-temperature wax liquid is sprayed into the mold from the wax spray device, specifically, the high-temperature wax liquid is sprayed from the wax nozzle. According to the processing needs, the wax spray rate needs to be adjusted during the production process. The current adjustment method is to use the software on the wax spray equipment to adjust the wax spray rate, specifically, to adjust the wax spray amount by adjusting the wax pump.

[0005] However, in the actual production process, when the wax liquid pressure sprayed by the wax sprayer is not high, such as the wax liquid solidifies in the nozzle, the wax liquid sprayed by the nozzle has a low pressure, resulting in the wax liquid being unable to be fully sprayed into the mold, resulting in insufficient wax casting, such as the wax mold wall having no after-casting.

[0006] During the production process, it is difficult to adjust the spray pressure of the wax spray nozzle. At this time, if the spray pressure is adjusted by increasing the pump, it is often difficult to control the spray. For example, excessive spraying will cause excessive wax liquid spray, which can easily cause the pipeline to be easily disconnected from the connection port, and the wax liquid filled in the mold has too high hydraulic pressure, causing the wax mold cast in the mold to be easily deformed under high hydraulic pressure, especially the thin parts of the workpiece.

[0007] Therefore, in the actual working process, a large number of wax models are unqualified in the process of constantly trying to adjust the optimal parameters. By directly adjusting the nozzle, the wax amount and spray pressure can be adjusted quickly and intuitively, but the existing wax spray nozzle does not have an accurate and flexible adjustment structure. Utility Model Content

[0008] Based on the above background, the purpose of the utility model is to provide a wax injection nozzle adjustment device.

[0009] In order to achieve the above objectives, the utility model adopts the following technical solutions:

[0010] A wax injection nozzle adjustment device comprises a nozzle pipe, and a plurality of wax injection adjustment mechanisms are assembled and connected to the nozzle pipe;

[0011] The wax injection adjusting mechanism includes a wax injection seat, and a channel communicating with the nozzle tube is provided in the wax injection seat;

[0012] An adjusting structure for adjusting the wax injection amount is assembled and connected in the wax injection seat;

[0013] The adjusting structure includes an adjusting seat slidably connected in the wax injection seat. A plurality of adjusting plates are fixedly connected to the bottom of the adjusting seat, and material passing holes communicating with the channel are provided in the adjusting plates;

[0014] The amount of wax passing through the wax injection seat is adjusted by staggering the material passing holes on the adjusting plates from the channel;

[0015] A plurality of sliding columns for sliding the wax injection seat are fixedly connected to the top of the adjusting seat. The tops of the sliding columns are located outside the wax injection seat, and the sliding columns are locked by a locking structure.

[0016] Preferably, sliding columns penetrating the adjusting seat upward are respectively fixedly connected to both sides of the top of the adjusting seat;

[0017] The locking structure includes a pressure rod fixedly connected to the upper end of the sliding column. Elastic pressure heads are respectively assembled and connected to the side walls on both sides of the pressure rod;

[0018] A locking plate corresponding to the elastic pressure head is fixedly connected to the top of the wax injection seat.

[0019] Preferably, pressure rods are respectively fixedly connected to the front and rear side walls of the sliding column;

[0020] Chutes for slidably connecting the elastic pressure heads are provided on the pressure rods. Springs are fixedly connected to the inner ends of the elastic pressure heads, and the springs are fixedly connected in the chutes;

[0021] A pair of locking plates are respectively fixedly connected to the front and rear sides of the top of the wax injection seat. Locking holes are provided at the upper ends of the locking plates. After the sliding column is pressed down, the elastic pressure head is elastically locked in the locking hole.

[0022] Preferably, a central column for sliding the wax injection seat is fixedly connected to the center position of the top of the adjusting seat, and the upper end of the central column is located outside the wax injection seat;

[0023] A spring is sleeved on the upper end of the central column, and a pressure sleeve fixedly connected to the central column is slidably connected to the top of the wax injection seat;

[0024] The top and bottom of the spring are respectively fixedly connected to the bottom of the pressure sleeve and the top of the wax injection seat.

[0025] Preferably, two adjusting plates arranged at intervals front and rear are fixedly connected to the bottom of the adjusting seat;

[0026] The sizes of the feeding holes on the adjustment plates in different wax injection seats are different.

[0027] Preferably, the wax injection seat at the discharge end is connected to a spray nozzle pipe, and a plurality of independently arranged spray adjustment plates are fixedly connected to the nozzle of the spray nozzle pipe;

[0028] A material spraying hole structure is formed between the ends of the material spraying adjustment plate;

[0029] The nozzle of the spray nozzle pipe is threadedly connected with a locking ring, and the size of the spray hole is adjusted by squeezing the spray adjustment plates closer together through the locking ring.

[0030] Preferably, the locking ring includes an annular portion threadedly connected to the nozzle pipe orifice, the annular portion is integrally formed with a conical extrusion portion, and the locking ring is rotated until the locking ring is retracted into the nozzle pipe until the conical extrusion portion is squeezed onto the spray adjustment plate.

[0031] Preferably, the discharge end of the nozzle tube is integrally formed with an annular mounting seat, and the annular mounting seat is fastened to the wax injection seat by a plurality of locking bolts;

[0032] The feed end of the nozzle tube is integrally formed with a threaded connection portion.

[0033] Preferably, the annular mounting seat and the wax injection seat are sealed by a sealing rubber ring.

[0034] The utility model has the following beneficial effects:

[0035] 1. Each wax injection regulating mechanism is used to narrow the passage through which the wax liquid passes in turn, thereby reducing the amount of wax sprayed and increasing the spray pressure.

[0036] 2. During the working process, the sliding column is lifted. At this time, the adjustment seat slides upward in the wax shooting seat (a sliding cavity adapted to the adjustment seat is opened in the wax shooting seat). At this time, the adjustment seat carries the adjustment plate up to the point where the material passing hole is offset from the channel in the wax shooting seat. At this time, the channel is blocked, the amount of wax material passing through is reduced, and because the channel becomes narrower, the pressure of the wax spraying increases.

[0037] 3. During the working process, the locking ring is rotated until the locking ring is retracted into the spray nozzle tube until the conical extrusion part is squeezed onto the spray adjustment plate. When the annular part is threadedly fastened into the spray nozzle tube, the conical extrusion part is squeezed onto the spray adjustment plate, and the independent spray adjustment plates are brought closer and squeezed to reduce the size of the spray structure. In this way, the spray pressure of the wax spray can be further adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0039] Figure 1 Schematic diagram of the overall structure in the embodiment of the present invention;

[0040] Figure 2 Schematic diagram of the dispersed structure in the embodiment of the present invention;

[0041] Figure 3 Schematic diagram of the locking structure in the embodiment of the present invention;

[0042] Figure 4 Schematic diagram of the central column, spring, pressure seat, and guide slide bar in the embodiment of the present invention;

[0043] Figure 5 Schematic diagram of the locking ring and the wax spraying adjusting plate in the embodiment of the present invention;

[0044] Figure 6 Schematic diagram of the adjusting plate in different wax injection seats in the embodiment of the present invention;

[0045] Figure 7 Schematic diagram of the dispersed structure of the wax injection seat in the embodiment of the present invention.

[0046] The realization of the purpose, functional characteristics, and advantages of the present invention will be further described in conjunction with the embodiments and with reference to the accompanying drawings. Specific embodiments

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0048] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, the directional indications will also change accordingly.

[0049] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0050] Example 1

[0051] like Figures 1-7 As shown, a wax injection nozzle adjustment device comprises a nozzle tube 11, and three wax injection adjustment mechanisms are assembled and connected to the nozzle tube 11. Specifically, each wax injection adjustment mechanism successively narrows the passage through which the wax liquid passes, thereby reducing the amount of wax sprayed and increasing the spray pressure.

[0052] Specifically, the wax injection adjustment mechanism includes a wax injection seat 2, which is installed in an existing manner, and adjacent wax injection seats 2 are connected through a connecting pipe.

[0053] A channel B connected to the nozzle tube 11 is provided in the wax injection seat 2 (the connecting tube is fastened at the channel opening by threaded connection).

[0054] The wax shooting seat 2 is equipped with an adjustment structure for adjusting the wax shooting amount; the adjustment structure includes an adjustment seat 51 slidably connected to the wax shooting seat 2 (correspondingly, a sliding cavity adapted to the adjustment seat 51 is provided in the wax shooting seat 2), and two adjustment plates 52 arranged at intervals in front and back are fixedly connected to the bottom of the adjustment seat 51, and the adjustment plates 52 are provided with a material passing hole 521 connected to the channel B. The material passing holes 521 on the two adjustment plates 52 fixedly connected to the bottom of the adjustment seat 51 are of the same size.

[0055] Specifically, under normal circumstances, the feed hole 521 on the adjustment plate 52 coincides with the channel B, at which time the wax output is maximum. When the feed hole 521 on the adjustment plate 52 is staggered with the channel B, the wax output is reduced, and at the same time, the wax spraying pressure increases due to the narrowing of the channel.

[0056] The sizes of the feeding holes 521 of the adjusting plates 52 in the wax shooting seat 2 decrease from the back to the front. In this way, it is possible to adjust whether the feeding holes 521 on the adjusting plates 52 in different wax shooting seats 2 coincide with the channel B to achieve precise adjustment.

[0057] Specifically, the feeding hole 521 on the adjusting plate 52 in the middle position and the rearmost position of the wax shooting seat 2 becomes smaller in the following manner: the internal thread of the feeding hole 521 is connected to the circular inner lining plate A, and the circular through hole on the circular inner lining plate A serves as the feeding hole 521.

[0058] The left and right sides of the top of the adjustment seat 51 are respectively fixedly connected with a slide post 53 of the sliding wax injection seat 2, and the top of the slide post 53 is located outside the wax injection seat 2. The slide post 53 is locked by a locking structure.

[0059] During the working process, the slide column 53 is raised. At this time, the adjustment seat 51 slides upward in the wax injection seat 2 (, at this time, the adjustment seat 51 carries the adjustment plate 52 to rise to the material passing hole 521 and staggered with the channel B in the wax injection seat 2. At this time, the channel B is blocked, the wax material passing amount is reduced, and because the channel B is narrowed, the pressure of the wax spraying is increased.

[0060] Example 2

[0061] like Figures 1-7 As shown, based on the structure of Example 1, the locking structure of this embodiment includes a pressure rod 531 fixedly connected to the upper end of the sliding column 53 (specifically, the front and rear side walls of the sliding column 53 are respectively fixedly connected with the pressure rod 531). The side walls on both sides of the pressure rod 531 are respectively equipped with elastic pressure heads 5311 (the outer end of the elastic pressure head 5311 is a curved portion); specifically, the pressure rod 531 is provided with a sliding groove (not shown in the figure) for slidingly connecting the elastic pressure head 5311, and the inner end of the elastic pressure head 5311 (the inner end of the elastic pressure head 5311 is a columnar portion and is fixedly connected with an inner spring, which is not shown in the figure and is fixedly connected in the sliding groove).

[0062] Correspondingly, a pair of locking plates 532 are fixedly connected to the front and rear sides of the top of the wax shooting seat 2, and a locking hole is opened at the upper end of the locking plate 532. After the sliding column 53 is pressed down, the elastic pressing head 5311 is elastically locked in the locking hole.

[0063] Under normal circumstances, the pressure rod 531 is locked in the lock hole through the elastic pressure head 5311. At this time, the adjustment seat 51-adjustment plate 52 is fixed in the wax shooting seat 2, and the material passing hole 521 is kept overlapping the channel B. Under the impact of the wax material, the adjustment seat 51-adjustment plate 52 remains in position.

[0064] Once the adjusting seat 51 - adjusting plate 52 needs to be raised until the material passing hole 521 is offset from the channel B in the wax shooting seat 2, at this time, the elastic pressing head 5311 is pressed by hand until the elastic pressing head 5311 is disengaged from the locking hole on the locking plate 532, so as to raise the adjusting seat 51 - adjusting plate 52.

[0065] Specifically, in order to facilitate lifting the adjustment seat 51-adjustment plate 52, the top center position of the above-mentioned adjustment seat 51 is fixedly connected with a center column 54 that is slidably connected to the wax injection seat 2, and the upper end of the center column 54 is located on the outside of the wax injection seat 2; the upper end of the center column 54 is sleeved with a spring 542 (specifically, the top and bottom of the spring 542 are respectively fixedly connected to the bottom of the following pressing sleeve 541 and the top of the wax injection seat 2).

[0066] The top of the wax shooting seat 2 is slidably connected with a pressing sleeve 541 fixedly connected to the central column 54 (specifically: both ends of the pressing sleeve 541 are slidably connected with guide slide rods 543, and the guide slide rods 543 are fixed to the top of the wax shooting seat 2). When the elastic pressing head 5311 is disengaged from the lock hole on the locking plate 532, under the elastic restoring force of the spring 542, the spring 542 pushes the pressing sleeve 541 to slide up the central column 54, and carries the adjustment seat 51-adjustment plate 52 to be lifted until the material passing hole 521 is staggered with the channel B.

[0067] Example 3

[0068] like Figures 1-7 As shown, based on the structure of Example 2, the wax shooting seat 2 located at the discharge end (i.e., the wax shooting seat 2 at the front end) is connected to a spray nozzle pipe 3, and a plurality of independently arranged spray adjustment plates 41 are fixedly connected to the nozzle mouth of the spray nozzle pipe 3; the spray adjustment plates 41 are made of elastic material, such as elastic silicon steel plate.

[0069] The ends of the spray adjustment plates 41 form a spray hole structure; when the spray adjustment plates 41 are completely close together and squeezed, the spray adjustment plates 41 form a conical spray structure. Under normal circumstances, the spray adjustment plates 41 are not squeezed, and there are gaps between the independent spray adjustment plates 41, and the spray hole structure is the largest.

[0070] In order to squeeze the spray adjusting plates 41 together to reduce the size of the spray hole structure of the spray structure, a locking ring 42 is threadedly connected to the nozzle of the spray nozzle pipe 3, and the locking ring 42 is used to squeeze the spray adjusting plates 41 together to adjust the size of the spray hole structure.

[0071] Specifically, the locking ring 42 includes an annular portion threadedly connected to the nozzle mouth of the spray nozzle pipe 3 (correspondingly, an annular thread groove is provided on the edge of the nozzle mouth of the spray nozzle pipe 3, and a threaded structure is provided on the outer wall of the annular portion, so that the annular portion is threadedly fastened to the spray nozzle pipe 3, and the annular thread groove is offset from the spray adjustment plate 41 and is located on the outer side of the spray adjustment plate 41).

[0072] Meanwhile, a conical extrusion part 421 is integrally formed on the annular part. The rotating locking ring 42 is rotated until the locking ring 42 retracts into the material spraying nozzle tube 3 and the conical extrusion part 421 is extruded onto the material spraying adjustment plate 41. During the process of thread-fastening the annular part into the material spraying nozzle tube 3, the conical extrusion part 421 is extruded onto the material spraying adjustment plate 41, and the independent material spraying adjustment plates 41 are brought closer to each other and extruded, so as to reduce the size of the material spraying structure. In this way, the spraying pressure of the sprayed wax is further adjusted.

[0073] Embodiment 4

[0074] As Figures 1-7 shown, on the basis of the structure of Embodiment 2 in this embodiment, an annular mounting seat 111 is integrally formed at the discharging end of the nozzle tube 11, and the annular mounting seat 111 is fastened to the wax injection seat 2 by a plurality of locking bolts; a threaded connection part 1 is integrally formed at the feeding end of the nozzle tube 11 (the threaded connection part 1 facilitates the installation of the nozzle tube 11 onto the material tube).

[0075] Meanwhile, in the same way as the existing sealing method, the annular mounting seat 111 and the wax injection seat 2 are sealed by a sealing rubber ring 112. Specifically, washer grooves are formed on the side walls of the annular mounting seat 111 and the wax injection seat 2 facing each other. The sealing rubber ring 112 is clamped between the washer grooves.

[0076] Certainly, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by those skilled in the art within the substantial scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A wax injection nozzle adjusting device, characterized in that, It includes a nozzle tube, and several wax injection adjusting mechanisms are assembled and connected to the nozzle tube; The wax injection adjusting mechanism includes a wax injection seat, and a channel communicating with the nozzle tube is provided in the wax injection seat; An adjusting structure for adjusting the wax injection amount is assembled and connected in the wax injection seat; The adjusting structure includes an adjusting seat slidably connected in the wax injection seat. A plurality of adjusting plates are fixedly connected to the bottom of the adjusting seat, and material passing holes communicating with the channel are provided in the adjusting plates; The amount of wax passing through the wax injection seat is adjusted by staggering the material passing holes on the adjusting plates from the channel; A plurality of sliding columns for sliding the wax injection seat are fixedly connected to the top of the adjusting seat. The tops of the sliding columns are located outside the wax injection seat, and the sliding columns are locked by a locking structure.

2. The wax injection nozzle adjusting device according to claim 1, wherein Sliding columns penetrating upward through the adjusting seat are respectively fixedly connected to both sides of the top of the adjusting seat; The locking structure includes a pressure rod fixedly connected to the upper end position of the sliding column. Elastic pressure heads are respectively assembled and connected to the side walls on both sides of the pressure rod; A locking plate corresponding to the elastic pressure head is fixedly connected to the top of the wax injection seat.

3. The wax injection nozzle adjusting device according to claim 2, characterized in that, Pressure rods are respectively fixedly connected to the front and rear side walls of the sliding column; Chutes for slidably connecting the elastic pressure heads are provided in the pressure rods. Springs are fixedly connected to the inner ends of the elastic pressure heads, and the springs are fixedly connected in the chutes; A pair of locking plates are respectively fixedly connected to the front and rear sides of the top of the wax injection seat. Locking holes are provided at the upper ends of the locking plates. After pressing down the sliding column, the elastic pressure head is elastically locked in the locking hole.

4. The wax injection nozzle adjusting device according to claim 2, characterized in that, A central column for sliding the wax injection seat is fixedly connected to the center position of the top of the adjusting seat. The upper end of the central column is located outside the wax injection seat; A spring is sleeved on the upper end of the central column. A pressure sleeve fixedly connecting the central column is slidably connected to the top of the wax injection seat; The top and bottom of the spring are respectively fixedly connected to the bottom of the pressure sleeve and the top of the wax injection seat.

5. The wax injection nozzle adjusting device according to claim 1, characterized in that, Two adjusting plates arranged at intervals front and rear are fixedly connected to the bottom of the adjusting seat; The sizes of the material passing holes on the adjusting plates in different wax injection seats are different.

6. The wax injection nozzle adjusting device according to claim 1, characterized in that, A spray nozzle tube is communicated with the wax injection seat at the position of the discharge end. A plurality of independently arranged spray adjusting plates are fixedly connected to the nozzle of the spray nozzle tube; A spray hole structure is formed between the ends of the spray adjusting plates; A locking ring is threadedly connected to the nozzle of the spray nozzle tube. By squeezing the spray adjusting plates to approach each other through the locking ring, the size of the spray hole is adjusted.

7. The wax injection nozzle adjusting device according to claim 6, wherein The locking ring includes an annular part threadedly connected to the nozzle of the spray nozzle tube. A conical extrusion part is integrally formed on the annular part. Rotate the locking ring until the locking ring retracts into the spray nozzle tube until the conical extrusion part presses against the spray adjusting plates.

8. The wax injection nozzle adjusting device according to claim 1, characterized in that, An annular mounting seat is integrally formed at the discharge end of the nozzle tube. The annular mounting seat is fastened to the wax injection seat by a plurality of locking bolts; A threaded connection part is integrally formed at the feed end of the nozzle tube.

9. The wax injection nozzle adjusting device according to claim 8, characterized in that, The annular mounting seat and the wax injection seat are sealed by a sealing rubber ring.

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