Automatic centering choke plug and initial mold matching structure

Abstract

An automatic centering bulkhead and primary mold matching structure comprises a primary mold and a bulkhead assembly, two half molds of the primary mold are closed to form a bulkhead matching opening and a bulkhead matching groove, the bulkhead assembly comprises a bulkhead core, a connecting rod and a bulkhead cover, and the bulkhead core is matched with an inclined surface on the bulkhead matching opening through a frustum-shaped first matching inclined surface; the second matching end of the connecting rod is clamped into the matching hole in the choke plug core and then is connected with the choke plug core through a pin penetrating through the first pin hole and the second pin hole, and the connecting rod is connected with the choke plug cover through a nut assembly screwed to the second matching end after penetrating through the connecting through hole in the choke plug cover; and when the choke plug core is assembled on the choke plug matching opening of the primary mold, the annular convex edge of the choke plug cover is just matched with the choke plug matching groove on the primary mold. Through double matching, the centering capacity is improved, matching abrasion is reduced, the service life of the choke plug is prolonged, the size of the choke plug line is reduced, the appearance quality of a final product is improved, and the structure is ingenious, simple and easy to implement.

Description

TECHNICAL FIELD

[0001] The present application relates to glass bottle forming process equipment, especially to a cooperation structure of automatic centering of a plug and a primary mold. BACKGROUND

[0002] In the production and forming of glass bottles, high-temperature glass melt needs to be first formed into a primary blank by a primary mold and then transferred to a forming mold to be shaped into the final shape. The forming mold of the primary blank generally includes a primary mold, a plug, and a mouth ring. The mouth mold, the pressure head, the punch, and other components, wherein the plug is mainly cooperated with the primary mold, blocked on the primary mold, and formed a cavity with the inner cavity of the primary mold to form the primary blank. After the primary blank is formed, the two halves of the primary mold are separated, and the plug is removed to transfer the primary blank.

[0003] In the primary blank forming process, the plug needs to be contacted and cooperated with the primary mold once for each glass bottle primary blank produced. Although the plug and the primary mold are made of cast iron, stainless steel, or other materials, due to the high temperature of the glass melt, frequent mold closing and opening will cause the contact and cooperation position to be easily worn. The cooperation between the existing plug and the primary mold generally has only one slope cooperation. When the cooperation surface is worn, the cooperation accuracy of the two will inevitably be reduced, the inner cavity of the plug and the inner cavity of the primary mold will be misaligned, and the plug line on the glass bottle will be very obvious and thick, thereby affecting the appearance and quality of the glass bottle. Especially when the plug and the primary mold cannot be centered due to wear, the plug line on the side with a larger gap will inevitably be further thickened, resulting in a larger frequency of plug replacement. SUMMARY

[0004] The purpose of the present application is to overcome the shortcomings of the prior art, and to provide a cooperation structure of automatic centering of a plug and a primary mold, which is ingenious in structure, can automatically center, and can improve the service life of the plug.

[0005] The present application is achieved by the following technical solutions: A cooperation structure of automatic centering of a plug and a primary mold, comprising a primary mold and a plug assembly, the primary mold comprising left and right two halves that cooperate with each other, the two halves forming a plug cooperation port and a plug cooperation groove after being closed, the plug cooperation port having an outwardly extending slope, and the annular plug cooperation groove being located on the outside of the plug cooperation port; the plug assembly comprising a plug core, a connecting rod, and a plug cover, one end of the plug core being conical frustum-shaped, the conical frustum-shaped end gradually decreasing in diameter towards the primary mold, the outer side surface of the conical frustum-shaped end being a first cooperation slope, the plug core being cooperated with the primary mold through the cooperation of the first cooperation slope and the slope of the plug cooperation port, and forming a forming cavity of the glass bottle primary blank.

[0006] The other end of the nipple core connected with the large end of the frustum is a connecting end, the two ends of the connecting rod are respectively a first matching end and a second matching end, the second matching end is provided with external threads, and the first matching end of the connecting rod is connected with the connecting end of the nipple core; the central shaft of the nipple cover is provided with a connecting through hole penetrating the nipple cover and capable of matching the connecting rod, and the connecting rod is connected with the nipple cover through a nut assembly screwed on the external threads of the second matching end after penetrating the connecting through hole.

[0007] The nipple cover is provided with an annular protrusion matched with the nipple matching groove on the initial mold, the inner side of the annular protrusion is a second matching slope, the second matching slope is matched with the inner groove wall of the nipple matching groove, when the nipple cover is connected with the nipple core through the connecting rod and the nipple core is assembled on the nipple matching port of the initial mold, the nipple cover is assembled on the initial mold through the matching between the second matching slope on the annular protrusion and the inner groove wall of the nipple matching groove on the initial mold, so as to clamp the two mold halves of the initial mold and guide the center positioning of the nipple core. The nipple cover plays a fixing role on the two mold halves of the initial mold and plays a center positioning role on the nipple core.

[0008] Further, when the connecting rod penetrates the connecting through hole on the nipple cover, there is a first matching gap between the connecting rod and the connecting through hole, so as to adjust the relative position of the nipple core and the nipple cover in the horizontal direction, when the nipple core and the initial mold are matched and worn, the nipple assembly is automatically centered when matched with the initial mold through the matching between the annular protrusion on the nipple cover and the nipple matching groove on the initial mold.

[0009] Further, the end face of the connecting end of the nipple core is provided with a matching hole, the hole is a blind hole, the side surface of the nipple core is provided with a first pin hole penetrating the side surface of the nipple core and the matching hole, the side surface of the first matching end of the connecting rod is provided with a second pin hole penetrating the side surface of the connecting rod, and the diameter of the first matching end is smaller than the diameter of the middle part of the connecting rod, so that the first matching end is formed with a first step, the first matching end is clamped into the matching hole on the nipple core, after the first step abuts against the end face of the connecting end of the nipple core, the first pin hole on the nipple core is just opposite to the second pin hole on the first matching end, and the connecting rod is connected with the nipple core through the pin penetrating the first pin hole and the second pin hole.

[0010] Further, the connecting through hole on the cap is a stepped hole, a second step with an outward end face is formed on one side of the second matching end of the connecting rod, the end of the cap close to the annular convex edge forms a receiving cavity for accommodating the plug core due to the existence of the annular convex edge, the annular convex edge becomes the side wall of the receiving cavity, a matching plane adapted to the end face of the connecting end of the plug core is arranged on the inner bottom surface of the receiving cavity, when the first matching end of the connecting rod is connected with the plug core and the second matching end passes through the connecting through hole of the cap, the matching plane on the cap is pressed on the end face of the connecting end of the plug core by pressing the second step in the connecting through hole by the nut assembly, so that the connection and matching of the cap and the plug core are realized.

[0011] Further, the diameter of the second matching end of the connecting rod is smaller than that of the middle part of the connecting rod, so that a third step is formed on the second matching end, when the nut assembly is pressed on the second step on the cap, the third step limits the nut assembly.

[0012] Further, the first matching inclined surface on the plug core is consistent with the inclination of the inclined surface of the plug matching port on the primary mold, when the plug core is matched with the plug matching port on the primary mold, the first matching inclined surface on the plug core and the inclined surface on the plug matching port exist a second matching gap, the connecting end of the plug core is cylindrical or frustoconical, an angle θ exists between the side surface of the cylindrical or frustoconical connecting end and the inclined surface on the plug matching port, so that a third matching gap exists between the connecting end and the plug matching port, the plug core and the plug matching port of the primary mold are gap matched, which is convenient for the discharge of gas, so that the glass melt can fill the entire forming cavity; the part between the plug matching port of the primary mold and the plug matching groove is a primary mold matching part, the end of the cap close to the annular convex edge forms a receiving cavity for accommodating the plug core due to the existence of the annular convex edge, the annular convex edge becomes the side wall of the receiving cavity, when the cap is connected with the plug core, the plug core is matched with the plug matching port of the primary mold, and the annular convex edge of the cap is matched with the plug matching groove of the primary mold, a fourth matching gap exists between the top of the primary mold matching part of the primary mold and the inner bottom surface of the receiving cavity of the cap, a vent hole is arranged on the side wall of the annular convex edge of the cap, when the annular convex edge of the cap is matched with the plug matching groove of the primary mold, the vent hole is communicated with the fifth matching gap, the fourth matching gap also exists between the side wall outside the annular convex edge and the plug matching groove, which is communicated with the outside, so that the gas in the forming cavity is discharged in sequence through the second matching gap, the third matching gap, the fourth matching gap and the fifth matching gap.

[0013] Although the inclinations are the same, the diameter of the plug is about 0.05 smaller than that of the single side of the primary mold, and this gap is used for discharging gas.

[0014] Further, the nut assembly comprises a buffer spring, a washer and a nut, which are sequentially arranged from inside to outside along the second connecting end of the connecting rod.

[0015] Further, the nut assembly comprises a buffer spring, a first washer, a first nut, a second washer and a second nut, which are sequentially arranged from inside to outside along the second connecting end of the connecting rod. The first washer is a flat washer, and the second washer is an elastic washer.

[0016] Further, the buffer spring is composed of a plurality of disc springs.

[0017] Further, the pin is an elastic cylindrical split pin.

[0018] The present application sets the plug matching mouth and the plug matching groove on the initial mold, sets the first matching slope and the annular convex edge on the plug assembly, and forms the double matching between the plug and the initial mold through the matching between the first matching slope and the plug matching mouth and the annular convex edge and the plug matching groove, thereby improving the centering ability when the plug matches the initial mold. Since the matching position between the first matching slope and the plug matching mouth is in the high-temperature area, the probability of the flat hard contact collision (easily occurs when not centered) at the matching position can be effectively reduced, the matching wear at the matching position is reduced, the service life of the plug is improved, the centering efficiency can be improved, the size of the plug line can be reduced, the smoothness of the bottom of the glass bottle is improved, and the appearance and quality of the final product are improved. Meanwhile, in order to prevent repeated matching and over-positioning, the plug assembly is designed as the plug core, the connecting rod and the plug cover which can be separated into three parts, the first matching slope is arranged on the plug core, the annular convex edge is arranged on the plug cover, the plug core is pre-tightened and installed with the plug cover through the elastic connecting structure such as the disc spring, the plug core and the plug cover are gap matched, the plug core and the plug cover can be adjusted in the horizontal direction, when the plug core and the initial mold appear matching wear, the relative position between the plug core and the plug cover is adjusted, the centering is performed through the matching between the annular convex edge on the plug cover and the plug matching groove on the initial mold, the phenomenon of one-side thick plug line due to not centered is avoided, the replacement frequency of the plug core is reduced, when the matching wear between the plug core and the initial mold exceeds a certain limit, the plug core is replaced, the problem of replacing the plug assembly as a whole is avoided, the plug cover can also play the role of clamp for the closing of the two mold halves of the initial mold. Through the matching design between the plug assembly and the initial mold, multiple matching gaps are formed, so that the plug assembly and the initial mold are gap matched after the plug assembly is assembled, the gas between the forming cavity walls can be smoothly discharged during the blowing and filling of the glass melt, and the parison can be smoothly formed. The plug core and the plug cover are connected through the connecting rod, and the structures such as the cylindrical open pin and the pin hole, the matching hole on the plug core, the through hole on the plug cover and the nut assembly on the connecting rod are arranged, so that the plug core, the connecting rod and the plug cover can be conveniently and quickly connected, the overall structure is ingenious, simple and easy to realize. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a sectional view and a part of the structure of the embodiment of the present application.

[0020] Figure 2 It is a part of the structure of the embodiment of the present application. Figure 1 It is an enlarged view of part of the structure.

[0021] Figure 3 It is an enlarged view of part of the structure of one embodiment of the present application.

[0022] Figure 4 It is a structure exploded view of the plug assembly in the embodiment of the present application.

[0023] Figure 5 Structure diagram of the plug assembly in the embodiment of the present application.

[0024] Figure 6 Structure diagram of the plug assembly in the embodiment of the present application.

[0025] Reference signs: 1 - initial mold; 2 - plug assembly; 3 - plug line; 4 - forming cavity; 11 - plug mating port; 12 - plug mating groove; 13 - half mold; 14 - initial mold mating part; 21 - plug core; 22 - plug cover; 23 - connecting rod; 24 - nut assembly; 25 - elastic cylindrical split pin; 211 - mating hole; 212 - first mating slope; 213 - first pin hole; 214 - connecting end; 221 - connecting through hole; 222 - annular convex edge; 223 - second mating slope; 224 - second step; 225 - positioning groove; 226 - accommodating cavity; 227 - air hole; 231 - first mating end; 232 - second mating end; 233 - second pin hole; 234 - third step; 235 - first step; 241 - buffer spring; 242 - first washer; 243 - first nut; 244 - second washer; 245 - second nut. DETAILED DESCRIPTION

[0026] A structure of an automatically aligned plug and an initial mold 1, mainly used for forming an initial blank of a circular glass bottle, as shown in the figure, which comprises an initial mold 1 and a plug assembly 2, the initial mold 1 comprises left and right two half molds 13 which are matched with each other, and the two half molds 13 form a plug mating port 11 and a plug mating groove 12 after being matched, the plug mating port 11 has an outwardly extending slope, i.e. the plug mating port 11 is a conventional split port with gradually widened opening, and the annular plug mating groove 12 is located at the outside of the plug mating port 11, i.e. the plug mating groove 12 is also located at one end which is matched with the plug assembly 2. Figures 1 to 6

[0027] The plug assembly 2 comprises a plug core 21, a connecting rod 23 and a plug cover 22, the plug core 21 is used for matching with the plug mating port 11, and the plug cover 22 is used for matching with the plug mating groove 12, one end of the plug core 21 matched with the initial mold 1 is in the shape of a frustum, the frustum gradually decreases in diameter towards the initial mold 1, and the outside surface of the frustum is a first mating slope 212, the plug core 21 is matched with the initial mold 1 through the matching of the first mating slope 212 and the slope of the plug mating port 11, thereby forming a forming cavity 4 of the initial blank of the glass bottle, and the bottom surface of the plug core 21 and the inner cavity formed after the two half molds 13 are matched together are matched with the shape of the designed initial blank of the glass bottle.

[0028] ​The other end of the nipple core 21 connected with the large end of the frustum is a connecting end 214, the two ends of the connecting rod 23 are respectively a first matching end 231 and a second matching end 232, the second matching end 231 is provided with external threads, and the first matching end 231 of the connecting rod 23 is connected with the connecting end 214 of the nipple core 21. The center axis of the nipple cover 22 is provided with a connecting through hole 221 which can match the connecting rod 23 and penetrate the nipple cover 22, and the second matching end 232 of the connecting rod 23 is connected with the nipple cover 22 through a nut assembly 24 screwed on the external threads of the second matching end 232 after penetrating the connecting through hole 221. In the embodiment, the pin is an elastic cylindrical split pin 25 which is a hollow cylindrical body, axially slotted, and chamfered at both end portions. The hollow and slotted structure makes it have good elasticity and shear resistance, the hole diameter is slightly larger than that of the first pin hole 213 and the second pin hole 233, and the fixing effect is good.

[0029] The nipple cover 22 is provided with an annular protrusion 222 which matches the nipple matching groove 12 on the initial mold 1, the inner side of the annular protrusion 222 is a second matching inclined surface 223 which matches the inner groove wall of the nipple matching groove 12, when the nipple cover 22 is connected with the nipple core 21 through the connecting rod 23 and the nipple core 21 is assembled on the nipple matching port 11 of the initial mold 1, the nipple cover 22 is just assembled on the initial mold 1 through the matching between the second matching inclined surface 223 on the annular protrusion 222 and the inner groove wall of the nipple matching groove 12 on the initial mold 1, so as to clamp the two mold halves 13 of the initial mold 1 and guide the center positioning of the nipple core 21. The nipple cover 22 plays a fixing role on the two mold halves 13 of the initial mold 1 and plays a center positioning role on the nipple core 21.

[0030] The matching between the nipple core 21 and the nipple matching port 11 of the initial mold 1 can guide the matching between the inner cavity of the nipple core 21 and the inner cavity of the initial mold 1 to form an initial embryo forming cavity 4, if the center lines of the nipple core 21 and the nipple matching port 11 of the initial mold 1 do not coincide, the inner cavities of the nipple and the initial mold 1 will be misaligned, and finally the glass bottle will present the defect of thick nipple line 3. The matching between the annular protrusion 222 of the nipple cover 22 and the nipple matching groove 12 of the initial mold 1 can guide the matching between the nipple and the initial mold 1, through secondary positioning, the initial mold 1 and the nipple core 21 are centered, and at the same time the two mold halves 13 can be clamped to firmly splice the two mold halves 13, so as to avoid the two mold halves 13 being forced to separate when the initial mold 1 enters the blowing (blowing method) or core pressing (pressure blowing method), and the glass bottle presents the defect of thick initial mold 1 joint line. The matching between the nipple cover 22 and the initial mold 1 also plays a role of upper and lower limiting of the nipple assembly 2, especially when the two groups of inclined surfaces are worn.

[0031] In the embodiment, when the connecting rod 23 passes through the connecting hole 221 on the plug cover 22, a first matching gap L1 exists between the connecting rod 23 and the connecting hole 221, so that when the plug core 21 and the plug cover 22 are assembled through the connecting rod 23, the plug core 21 and the plug cover 22 can have a relative movement space in the horizontal direction to adjust the horizontal relative position therebetween, and when the plug core 21 and the initial mold 1 are worn and misaligned, the horizontal gap between the plug core 21 and the plug cover 22 can be adjusted, the plug cover 22 is matched with the plug matching groove 12 on the initial mold 1 through the annular protrusion 222 on the plug cover 22, the automatic alignment of the plug core 21 and the initial mold 1 is realized, the inner cavity of the plug can be automatically matched with the inner cavity of the initial mold 1 in the horizontal direction, and the side plug line is prevented from being too thick and the plug core 21 from being frequently replaced. The first matching gap L1 can be about 0.4 mm.

[0032] In the embodiment, the diameters of the first matching end 231 and the second matching end 232 of the connecting rod 23 are smaller than the diameter of the middle part of the connecting rod 23, so that the first step 235 and the third step 234 are respectively formed on the first matching end 231 and the second matching end 232. The end face of the connecting end 214 of the plug core 21 is provided with a matching hole 211, the hole is a blind hole, the side surface of the plug core 21 is provided with a first pin hole 213 penetrating the side surface of the plug core and the matching hole 211, the side surface of the first matching end 231 of the connecting rod 23 is provided with a second pin hole 233 penetrating the side surface of the connecting rod 23, the first matching end 231 of the connecting rod 23 is clamped into the matching hole 211 on the plug core 21, after the first step 235 abuts against the end face of the connecting end 214 of the plug core, the first pin hole 213 on the plug core 21 is just opposite to the second pin hole 233 on the first matching end 231 in position, and the connecting rod 23 is connected with the plug core 21 through the pin passing through the first pin hole 213 and the second pin hole 233.

[0033] The connecting through hole 221 on the cap 22 is a stepped hole, and a second step 224 with an outward end face is formed on one side of the second fitting end 232 of the connecting rod 23. One end of the cap 22 near the annular protrusion 222 forms a receiving cavity 226 for accommodating the cap core 21 due to the presence of the annular protrusion 222, and the annular protrusion 222 becomes the side wall of the receiving cavity 226. A fitting plane is arranged on the inner bottom surface of the receiving cavity 226 and is matched with the end face of the connecting end 214 of the cap core 21. When the first fitting end 231 of the connecting rod 23 is connected with the cap core 21 and the second fitting end 232 passes through the connecting through hole 221 of the cap 22, the fitting plane on the cap 22 is pressed against the end face of the connecting end 214 of the cap core 21 by the second step 224 in the connecting through hole 221 being pressed by the nut assembly 24, so that the mutual connection and fitting between the cap 22, the connecting rod 23 and the cap core 21 are realized. At the same time, when the nut assembly 24 is pressed against the second step 224 on the cap 22, the third step 234 limits the nut assembly 24.

[0034] In this embodiment, in order to smoothly form the initial embryo, as Figure 3, the first matching slope 212 on the plug core 21 is consistent with the slope of the matching slope on the plug matching port 11 of the initial mold 1, when the plug core 21 matches with the plug matching port 11 on the initial mold 1, there is a second matching gap L2 between the first matching slope 212 on the plug core 21 and the slope on the plug matching port 11, the connecting end 214 on the plug core 21 is cylindrical or frustum, and there is an included angle θ between the side surface of the cylindrical or frustum and the slope on the plug matching port 11, so that there is a third matching gap between the connecting end 214 and the plug matching port 11, the plug core 21 and the plug matching port 11 of the initial mold 1 are matched by the gap, which is convenient for the discharge of the gas, so that the glass melt can fill the entire forming cavity 4, and the gap matching can also prevent the contact and collision between the plug core and the initial mold, thereby improving the service life of the equipment. The part between the plug matching port 11 of the initial mold 1 and the plug matching groove 12 is the initial mold matching part 1414, one end of the plug cover 22 close to the annular protrusion 222 forms a containing cavity 226 capable of containing the plug core 21 due to the existence of the annular protrusion 222, and the annular protrusion 222 becomes the side wall of the containing cavity 226, when the plug cover 22 is connected with the plug core 21, the plug core 21 matches with the plug matching port 11 of the initial mold 1, and the annular protrusion 222 of the plug cover 22 matches with the plug matching groove 12 of the initial mold 1, there is a fourth matching gap L3 between the top of the initial mold matching part 1414 of the initial mold 1 and the inner bottom surface of the containing cavity 226 of the plug cover 22, and the side wall of the annular protrusion 222 of the plug cover 22 is provided with a vent hole 227, when the annular protrusion 222 of the plug cover 22 matches with the plug matching groove 12 of the initial mold 1, the vent hole 227 is communicated with a fifth matching gap, and there is also a fourth matching gap between the annular protrusion 222 and the side wall outside the plug matching groove 12, which is communicated with the outside, so that the gas in the forming cavity 4 is discharged through the second matching gap, the third matching gap, the fourth matching gap and the fifth matching gap in turn.

[0035] For example, one embodiment is listed as follows: Figure 3 The connecting end 214 of the plug core 21 is frustum, the height H1 of the frustum is 20mm, the height H2 of the frustum at the bottom of the plug core 21 is 5mm, the slope of the frustum at the bottom is consistent with the slope of the matching slope on the plug matching port 11 of the initial mold 1, the second matching gap L2 is set to 0.05mm, the included angle θ between the side surface of the frustum of the connecting end 214 and the slope of the plug matching port 11 is 8°, and the fourth matching gap L3 is set to 0.06mm.

[0036] The plug cover 22 is provided with symmetrical positioning grooves 225 on the end away from the initial mold 1, which is used for the installation, fixation and movement of the plug assembly 2.

[0037] As one of the embodiments, the nut assembly 24 comprises a buffer spring 241, a washer and a nut, which are sequentially arranged from inside to outside along the second fitting end 232 of the connecting rod 23.

[0038] As another of the embodiments, the nut assembly 24 comprises a buffer spring 241, a first washer 242, a first nut 243, a second washer 244 and a second nut 245, which are sequentially arranged from inside to outside along the second fitting end 232 of the connecting rod 23. The first washer 242 is a flat washer, such as a φ10 flat washer, the second washer 244 is an elastic washer, such as a φ8 elastic washer, the first nut 243 is an M10 hexagonal nut, and the second nut 245 is an M8 hexagonal nut.

[0039] In the embodiment, the buffer spring 241 is composed of a plurality of disc springs, which has large rigidity, strong shock-absorbing capacity, can bear large load with small deformation, and saves space. During assembly, the first fitting end 231 of the connecting rod 23 is inserted into the fitting hole 211 of the plug core 21, the elastic cylindrical split pin 25 is passed through the first pin hole 213 and the second pin hole 233, the first fitting end 231 of the connecting rod 23 is connected with the plug core 21, the second fitting end 232 of the connecting rod 23 is passed through the connecting through hole 221 of the plug cover 22, the plug cover 22 is pre-installed with the plug core 21 by the nut assembly 24 such as disc spring combination, and the preliminary assembly of the plug assembly 2 is completed; after the two halves of the mold 13 are closed, the plug assembly 2 is assembled with the initial mold 1, the position of the plug assembly 2 is adjusted, especially the horizontal relative position between the plug cover 22 and the plug core 21 is adjusted through the first fitting gap between the connecting rod 23 and the connecting through hole 221, so that the plug core 21 is well fitted with the plug fitting port 11 of the initial mold 1, the plug core 21 is centered, the annular protrusion 222 of the plug cover 22 is well fitted with the plug fitting groove 12 of the initial mold 1, the nut assembly 24 is tightened, and the plug cover 22 and the plug core 21 are completely fixed, so that the assembly of the plug assembly is completed, and the forming operation of the glass bottle or can initial blank can be performed.

[0040] When the first matching surface 212 of the plug core 21 and the matching surface of the plug matching port 11 of the initial mold 1 are worn, the inner cavity of the plug core 21 and the inner cavity of the initial mold 1 are difficult to match, which causes the plug line 3 to be thick. When the nut assembly 24 is loosened, the horizontal relative position between the plug cover 22 and the plug core 21 is adjusted through the first matching gap between the connecting rod 23 and the connecting through hole 221, the annular convex edge 222 of the plug cover 22 is matched with the plug matching groove 12 of the initial mold 1, the plug core 21 is matched in the center of the plug matching port 11 of the initial mold 1, and the nut assembly 24 is tightened.

[0041] During the forming process of the glass bottle initial embryo, the gas between the glass melt and the forming cavity is discharged outside the equipment through the second matching gap, the third matching gap, the fourth matching gap and the fifth matching gap between the plug core, the plug cover and the initial mold when the blowing mechanism below the initial mold blows from bottom to top to make the glass melt expand to fill the forming cavity.

[0042] The above detailed description is a specific description of the feasible embodiments of the present application, which is not used to limit the patent range of the present application. Any equivalent implementation or change without departing from the present application should be included in the patent range of the present application.

Claims

1. A matching structure of an automatically centered bulkhead and a blank mold, characterized in that: The present invention relates to a method for manufacturing a glass bottle jar of a certain type and a method for manufacturing a glass bottle jar of a certain type. The method comprises the steps of: firstly, making the cam body of the glass bottle jar a center of rotation of the first mould and secondly, making the cam body of the glass bottle jar a center of rotation of the first mould and the center of the second mould; and thirdly, making the cam body of the glass bottle jar a center of rotation of the first mould and the center of the second mould; and fourthly, making the cam body of the glass bottle jar a center of rotation of the first mould and the center of the second mould; and fifthly, making the cam body of the glass bottle jar a center of rotation of the first mould and the center of the second mould; and fifthly, making the cam body of the glass bottle jar a center of rotation of the first mould and the center of the second mould; and sixthly, making the cam body of the glass bottle jar a center of rotation of the first mould and the center of the second mould; and sixthly, making the cam body of the glass bottle jar a center of rotation of the first mould and the center of the second mould; and eighth ... The second mating end is provided with an external thread, and the first mating end of the connecting rod is connected to the connecting end of the blind head core; a connecting through hole is provided at the central axis of the blind head cover, which passes through the blind head cover and can cooperate with the connecting rod. After the connecting rod passes through the connecting through hole, it is connected to the blind head cover by a nut assembly screwed on the external thread at the second mating end; the blind head cover is provided with an annular convex edge that cooperates with the blind head matching groove, and the inner side surface of the annular convex edge is a second matching inclined surface. When the blind head cover is connected to the blind head core through the connecting rod, the blind head cover is assembled on the initial mold after the two half molds are closed by the cooperation between the second matching inclined surface on the annular convex edge and the inner groove wall of the blind head matching groove on the initial mold, and the blind head core just cooperates with the blind head matching port on the initial mold.

2. The matching structure of the automatic centering bulkhead and the blank mold according to claim 1 is characterized in that: When the connecting rod passes through the connecting through hole on the bulkhead cover, a first fitting gap exists between the connecting rod and the connecting through hole, so that the relative position of the bulkhead core and the bulkhead cover can be adjusted in the horizontal direction, thereby realizing automatic centering when the bulkhead assembly is matched with the initial mold.

3. The matching structure of the automatic centering bulkhead and the blank mold according to claim 1 is characterized in that: A fitting hole is provided on the end face of the connecting end of the bulkhead core, which is a blind hole. A first pin hole is provided on the side face of the bulkhead core, which passes through the side face of the bulkhead core and the fitting hole. A second pin hole is provided on the side face of the first fitting end of the connecting rod, which passes through the side face of the connecting rod, and the diameter of the first fitting end is smaller than the diameter of the middle part of the connecting rod, so that a first step is formed on the first fitting end. The first fitting end of the connecting rod is inserted into the fitting hole on the bulkhead core. After the first step abuts against the end face of the connecting end of the bulkhead core, the first pin hole on the bulkhead core is just opposite to the second pin hole on the first fitting end, and the connecting rod is connected to the bulkhead core by a pin passing through the first pin hole and the second pin hole.

4. The matching structure of the automatic centering bulkhead and the blank mold according to claim 1 is characterized in that: The connecting through hole on the bulkhead cover is a stepped hole, and a second step with an end face facing outward is formed on the side of the stepped hole close to the second mating end of the connecting rod. The end of the bulkhead cover close to the annular ridge forms a accommodating cavity for accommodating the bulkhead core due to the presence of the annular ridge. The annular ridge becomes the side wall of the accommodating cavity, and a mating plane adapted to the end face of the connecting end of the bulkhead core is provided on the inner bottom surface of the accommodating cavity. When the first mating end of the connecting rod is connected to the bulkhead core and the second mating end passes through the connecting through hole of the bulkhead cover, the nut assembly is pressed against the second step in the connecting through hole, so that the mating plane on the bulkhead cover is pressed against the end face of the connecting end of the bulkhead core, thereby realizing the connection and mating between the bulkhead cover and the bulkhead core.

5. The matching structure of the automatic centering bulkhead and the blank mold according to claim 4 is characterized in that: The diameter of the second mating end of the connecting rod is smaller than the diameter of the middle part of the connecting rod, so that a third step is formed on the second mating end. When the nut assembly is pressed against the second step on the blind head cover, the third step serves to limit the nut assembly.

6. The matching structure of the automatic centering bulkhead and the blank mold according to claim 1 is characterized in that: The first matching bevel on the blind head core is consistent with the inclination of the bevel of the blind head matching port on the initial mold. When the blind head core is matched with the blind head matching port on the initial mold, a second matching gap exists between the first matching bevel on the blind head core and the bevel on the blind head matching port. The connecting end on the blind head core is cylindrical or frustum-shaped. There is an angle θ between the side surface of the cylindrical or frustum-shaped and the bevel on the blind head matching port, so that a third matching gap exists between the connecting end and the blind head matching port. The blind head core and the blind head matching port of the initial mold are gap-matched to facilitate the discharge of gas; the part between the blind head matching port and the blind head matching groove of the initial mold is the matching part of the initial mold, and the end of the blind head cover close to the annular convex edge forms a space that can accommodate the blind head core due to the presence of the annular convex edge. The accommodating cavity, the annular convex edge becomes the side wall of the accommodating cavity. When the blind head cover is connected to the blind head core, the blind head core cooperates with the blind head matching port of the initial mold, and the annular convex edge of the blind head cover cooperates with the blind head matching groove of the initial mold, there is a fourth matching gap between the top of the initial mold matching part of the initial mold and the inner bottom surface of the accommodating cavity of the blind head cover. A vent is provided on the side wall of the annular convex edge of the blind head cover. When the annular convex edge of the blind head cover cooperates with the blind head matching groove of the initial mold, the vent is connected to the fifth matching gap. There is also a fourth matching gap between the annular convex edge and the side wall outside the blind head matching groove, so that the gas in the molding cavity is discharged through the second matching gap, the third matching gap, the fourth matching gap and the fifth matching gap in sequence.

7. The matching structure of the automatic centering bulkhead and the blank mold according to claim 1 is characterized in that: The nut assembly includes a buffer spring, a washer and a nut, and the buffer spring, the washer and the nut are arranged in sequence from the inside to the outside along the second matching end of the connecting rod.

8. The matching structure of the automatic centering bulkhead and the blank mold according to claim 1 is characterized in that: The nut assembly includes a buffer spring, a first washer, a first nut, a second washer and a second nut. The buffer spring, flat washer, first nut, elastic washer and second nut are arranged in sequence from inside to outside along the second mating end of the connecting rod.

9. The matching structure of the automatic centering blind head and the blank mold according to claim 7 or 8, characterized in that: The buffer spring is composed of a plurality of disc springs.

10. The matching structure of the automatic centering bulkhead and the blank mold according to claim 1, characterized in that: The pin is an elastic cylindrical cotter pin.

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