Module cooling device for blow molding processing of bottle blanks

Abstract

The utility model relates to the technical field of bottle blank module cooling, in particular to a module cooling device for blow molding processing of bottle blanks, which comprises a tray and an inner mounting hole, an inner cooling component is annularly and slidably arranged in the inner mounting hole and comprises an inner vertical cylinder and a plurality of nozzles, and a side transverse plate is annularly and slidably arranged on the peripheral side wall of the tray. An outer cooling assembly capable of controlling the sliding distance is arranged on the side transverse plate in a sliding mode and comprises an outer vertical cylinder consistent with the inner vertical cylinder in longitudinal size, a plurality of transverse pipes arranged on the side, close to the circle center of the tray, of the peripheral side wall of the outer vertical cylinder and air outlet spraying discs installed at the other ends of the transverse pipes, and the cold air spraying direction of the air outlet spraying discs points to bottle blanks to be cooled. According to the utility model, the rotatable inner cooling component and the rotatable outer cooling component are respectively used for cooling the inside and the outside of the bottle blank in all directions, so that local cooling is avoided, and meanwhile, the overall cooling effect on the bottle blank module is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of preform module cooling, in particular to a module cooling device for preform blow molding processing. Background Technique

[0002] A bottle blowing machine or a blow molding machine is a common device commonly used for making glass bottles and plastic bottles. Taking the bottle blowing machine as an example, according to the working principle, the bottle blowing machine can be divided into two categories, namely, a one-step bottle blowing machine that completes the processing of glass bottles by one-time blowing and a two-step bottle blowing machine that completes the processing of glass bottles by secondary blowing. Both of these two bottle blowing machines include a mold clamping device, and the shape of the glass bottle after the preform is formed is restricted by the mold cavity on the mold clamping device. The specific blow molding processing flow is as follows: a tubular plastic preform obtained by extrusion or injection molding of a thermoplastic resin is placed in a split mold while it is hot or heated to a softened state. After closing the mold, compressed air is immediately introduced into the preform, so that the plastic preform is blown and expanded to closely adhere to the inner wall of the mold. After cooling and demolding, various hollow products are obtained.

[0003] After the preform processed in the blow molding mold is cooled by the mold, demolding can be completed. However, the preform module itself is still at a relatively high temperature after demolding. Therefore, further cooling treatment of the preform module is still required. The existing cooling method is to blow the surface of the preform with natural wind or cold air to achieve the purpose of cooling the surface of the preform mold. However, in such a cooling method, on the one hand, due to the fixed blowing position of the natural wind, the direction of the natural wind or cold air blowing towards the preform is fixed, so often only local cooling of the preform surface can be carried out. On the other hand, there is a lack of cooling treatment for the inside of the preform, and finally the overall cooling effect of the preform module is not good.

[0004] Therefore, it is very necessary to invent a module cooling device for preform blow molding processing to solve the above problems. Content of the Utility Model

[0005] To solve the deficiencies of the prior art, the purpose of the utility model is to provide a module cooling device for preform blow molding processing, which solves the problems in the prior art that on the one hand, due to the fixed blowing position of the natural wind, the direction of the natural wind or cold air blowing towards the preform is fixed, so often only local cooling of the preform surface can be carried out, and on the other hand, there is a lack of cooling treatment for the inside of the preform, and finally the overall cooling effect of the preform module is not good.

[0006] In order to achieve the above objectives, the utility model adopts the following technical solutions:

[0007] A module cooling device for bottle preform blow molding processing, including a tray and an inner installation hole opened at the center of the tray. An inner cooling component is detachably and annularly slidably arranged in the inner installation hole. The inner cooling component includes an inner vertical cylinder that can rotate annularly along the center of the inner installation hole and can be inserted into the bottle preform to be cooled, and a plurality of nozzles opened on the peripheral side wall of the inner vertical cylinder and capable of spraying cold air. A side cross plate is annularly slidably arranged on the outer peripheral side wall of the tray. An outer cooling component that can control the sliding distance is slidably arranged in the side cross plate in a direction close to or away from the center of the tray. The outer cooling component includes an outer vertical cylinder with the same longitudinal dimension as the inner vertical cylinder, a plurality of horizontal pipes arranged on the peripheral side wall of the outer vertical cylinder on the side close to the center of the tray, and an air outlet spray disc installed at the other end of the horizontal pipe. And the cold air spraying direction of the air outlet spray disc points to the bottle preform to be cooled.

[0008] As a preferred scheme of the present utility model, an inner annular slide rail is detachably installed on the inner peripheral side wall of the inner installation hole. The inner annular slide rail is slidably connected with an inner slide seat. The inner cooling component is detachably arranged on the inner slide seat.

[0009] As a preferred scheme of the present utility model, the inner cooling component further includes an inner air inlet pipe arranged at the center of the bottom end of the inner vertical cylinder. An inner positioning seat is installed on one side of the inner slide seat close to the center of the inner installation hole. A jack is opened at the center of the inner positioning seat. The inner air inlet pipe is detachably longitudinally inserted into the jack. The top end of the inner vertical cylinder is detachably connected with a backing plate.

[0010] As a preferred scheme of the present utility model, a positioning groove that can communicate with the jack is opened in the inner positioning seat. Insertion strips that can be longitudinally inserted into the positioning groove and prevent the inner air inlet pipe from rotating are arranged on the outer peripheral side wall of the inner air inlet pipe.

[0011] As a preferred scheme of the present utility model, an outer annular slide rail is detachably installed on the outer peripheral side wall of the tray. An outer slide seat is installed at one end of the side cross plate close to the center of the tray. The outer slide seat can annularly slide along the outer annular slide rail.

[0012] As a preferred scheme of the present utility model, a through slot is longitudinally opened in the side cross plate. An outer air inlet pipe that can slide horizontally along the slot is connected to the center of the bottom end of the outer vertical cylinder. Side activity grooves that can communicate with the slot are opened inward on both side walls of the side cross plate. A sleeve plate that can slide horizontally along the side activity grooves is detachably sleeved on the part of the outer air inlet pipe located in the slot.

[0013] As a preferred scheme of the present utility model, side positioning studs are arranged on one side wall of the sleeve plate pointing to the side activity groove. The side positioning studs can slide horizontally along the side activity groove and extend to the outside of the side cross plate. Nuts that can lock the sleeve plate in the horizontal position in the side activity groove are threadedly sleeved on the part of the side positioning studs located outside the side cross plate.

[0014] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:

[0015] In the present utility model, by sleeving the preform module to be cooled around the inner vertical cylinder, the inner vertical cylinder of the inner cooling component can penetrate into the interior of the preform. By driving the inner vertical cylinder to rotate annularly, cold air can be ejected from multiple nozzles in an all-round manner towards the inner peripheral side wall of the preform, so that the cold air blows on various positions of the inner peripheral side of the preform module, completing the cooling from the inside of the preform. At the same time, by changing the horizontal position of the outer cooling component at the top of the side horizontal plate, the distance between the outer cooling component and the preform can be adjusted according to the width of the preform module. By driving the side horizontal plate to slide annularly along the tray, the outer cooling component can be driven to slide annularly, that is, driving the outer vertical cylinder and multiple air outlet spray discs to slide annularly, so that cold air can be ejected from all directions towards the outer peripheral side wall of the preform, so that the cold air blows on various positions of the outer peripheral side wall of the preform module, completing the cooling from the outside of the preform. Finally, through the rotatable inner cooling component and the rotatable outer cooling component, the interior and exterior of the preform are cooled in an all-round manner, avoiding local cooling and improving the overall cooling effect on the preform module. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a schematic front view structure diagram of the present utility model;

[0018] Figure 3 is a schematic bottom view structure diagram of the present utility model.

[0019] Description of the reference numerals:

[0020] 1, tray; 2, inner mounting hole; 3, inner annular slide rail; 4, inner sliding seat; 5, inner positioning seat; 6, jack; 7, positioning groove; 8, inner vertical cylinder; 9, nozzle; 10, inner air inlet pipe; 11, outer annular slide rail; 12, outer sliding seat; 13, side horizontal plate; 14, slot; 15, side movable groove; 16, outer air inlet pipe; 17, sleeve plate; 18, side positioning stud; 19, nut; 20, outer vertical cylinder; 21, horizontal pipe; 22, air outlet spray disc; 23, backing plate; 24, inserting strip. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The present utility model will be further described below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present utility model and cannot be used to limit the protection scope of the present utility model.

[0022] The present utility model provides as Figures 1-3A module cooling device for preform blow molding processing as shown, including a tray 1 and an inner mounting hole 2 opened at the center of the tray 1. An inner cooling component is detachably and annularly slidably arranged in the inner mounting hole 2. The inner cooling component includes an inner vertical cylinder 8 that can rotate annularly around the center of the inner mounting hole 2 and can be inserted into the preform to be cooled, and a plurality of nozzles 9 opened on the circumferential side wall of the inner vertical cylinder 8 and capable of spraying cold air. The outer circumferential side wall of the tray 1 is annularly slidably provided with a side cross plate 13. An outer cooling component that can control the sliding distance is slidably arranged in the side cross plate 13 in a direction close to or away from the center of the tray 1. The outer cooling component includes an outer vertical cylinder 20 having the same longitudinal dimension as the inner vertical cylinder 8, a plurality of transverse pipes 21 arranged on the circumferential side wall of the outer vertical cylinder 20 on the side close to the center of the tray 1, and an air outlet spray disc 22 installed at the other end of the transverse pipe 21. And the cold air spraying direction of the air outlet spray disc 22 points to the preform to be cooled. This application mainly conducts cooling treatment on the preform module after it has been removed from the blow molding die.

[0023] An inner annular slide rail 3 is detachably installed on the inner circumferential side wall of the inner mounting hole 2. The inner annular slide rail 3 is slidably connected with an inner slide seat 4. The inner cooling component is detachably arranged on the inner slide seat 4. The annular sliding of the inner slide seat 4 along the inner annular slide rail 3 can be driven by electricity, and at the same time, the sliding speed of the inner slide seat 4 can be controlled by writing relevant programs.

[0024] The inner cooling component further includes an inner air inlet pipe 10 arranged at the center of the bottom end of the inner vertical cylinder 8. An inner positioning seat 5 is installed on one side of the inner slide seat 4 close to the center of the inner mounting hole 2. A jack 6 is opened at the center of the inner positioning seat 5. The inner air inlet pipe 10 is detachably longitudinally inserted into the jack 6. The top end of the inner vertical cylinder 8 is detachably connected with a backing plate 23, and the backing plate 23 can prevent the preform module from directly contacting the top end of the inner vertical cylinder 8 during cooling, avoiding abrasion of the inner surface of the preform module in the uncooled state.

[0025] A positioning groove 7 that can communicate with the jack 6 is opened in the inner positioning seat 5. An insertion strip 24 that can be longitudinally inserted into the positioning groove 7 and prevent the inner air inlet pipe 10 from rotating is arranged on the outer circumferential side wall of the inner air inlet pipe 10. When the inner air inlet pipe 10 is inserted into the jack 6, the insertion strip 24 is inserted into the positioning groove 7, which can avoid the rotation of the inner cooling component itself on the premise of fixing the position of the inner cooling component.

[0026] An outer annular slide rail 11 is detachably installed on the outer circumferential side wall of the tray 1. An outer slide seat 12 is installed at one end of the side cross plate 13 close to the center of the tray 1. The outer slide seat 12 can slide annularly along the outer annular slide rail 11. The annular sliding of the outer slide seat 12 along the outer annular slide rail 11 can be driven by electricity, and at the same time, the sliding speed of the outer slide seat 12 can be controlled by writing relevant programs.

[0027] The side horizontal plate 13 is longitudinally provided with a through slot 14. The center of the bottom end of the outer vertical cylinder 20 is connected with an outer air inlet pipe 16 that can slide horizontally along the slot 14. The two side walls of the side horizontal plate 13 are inwardly provided with side movable slots 15 that can communicate with the slot 14. A sleeve plate 17 that can slide horizontally along the side movable slot 15 is detachably sleeved on the part of the outer air inlet pipe 16 located in the slot 14. Side positioning studs 18 are provided on one side wall of the sleeve plate 17 pointing to the side movable slot 15. The side positioning studs 18 can slide horizontally along the side movable slot 15 and extend to the outside of the side horizontal plate 13. A nut 19 that can lock the horizontal position of the sleeve plate 17 in the side movable slot 15 is threadedly sleeved on the part of the side positioning stud 18 located outside the side horizontal plate 13. By changing the horizontal sliding of the outer air inlet pipe 16 in the slot 14, the outer cooling assembly can slide along the slot 14 towards or away from the center of the tray 1, thereby changing the distance between the outer cooling assembly and the preform. During the horizontal sliding process, the sleeve plate 17 and the side positioning studs 18 slide horizontally synchronously along the side movable slot 15. On the one hand, it avoids the rotation of the outer cooling assembly itself. On the other hand, it is convenient to fix the horizontal position of the outer cooling assembly on the side horizontal plate 13 through the nut 19.

[0028] In the present utility model, by sleeving the preform module to be cooled around the inner vertical cylinder 8, the inner vertical cylinder 8 of the inner cooling assembly can penetrate into the preform. By driving the inner vertical cylinder 8 to rotate annularly, cold air can be sprayed from multiple nozzles 9 in an all-round manner towards the inner peripheral side wall of the preform, so that the cold air blows on each position of the inner peripheral side of the preform module, completing the cooling from the inside of the preform. At the same time, the horizontal position of the outer cooling assembly at the top of the side horizontal plate 13 can be changed, so as to adjust the distance between the outer cooling assembly and the preform according to the width of the preform module. By driving the side horizontal plate 13 to slide annularly along the tray 1 to drive the outer cooling assembly to slide annularly, that is, driving the outer vertical cylinder 20 and multiple air outlet spray discs 22 to slide annularly, cold air can be sprayed from all directions towards the outer peripheral side wall of the preform, so that the cold air blows on each position of the outer peripheral side wall of the preform module, completing the cooling from the outside of the preform. Finally, the inner cooling assembly and the outer cooling assembly that can rotate are used to cool the inside and outside of the preform in an all-round manner respectively, avoiding local cooling and improving the overall cooling effect on the preform module.

[0029] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and deformations can still be made, and these improvements and deformations should also be regarded as the protection scope of the present utility model.

Claims

1. A mold cooling device for bottle preform blow molding, characterized in that: The invention comprises a tray (1) and an inner mounting hole (2) opened at the center of the tray (1), wherein an inner cooling component is detachably provided in an annular manner in the inner mounting hole (2), wherein the inner cooling component comprises an inner vertical tube (8) which can rotate in an annular manner along the center of the inner mounting hole (2) and can be inserted into a bottle blank to be cooled, and a plurality of nozzles (9) opened on the peripheral side wall of the inner vertical tube (8) and capable of spraying cold air, wherein a side transverse plate (13) is provided in an annular manner in the outer peripheral side wall of the tray (1), wherein an outer cooling component with a controllable sliding distance is provided in the side transverse plate (13) in a direction close to or away from the center of the tray (1), wherein the outer cooling component comprises an outer vertical tube (20) having the same longitudinal dimension as the inner vertical tube (8), a plurality of transverse tubes (21) provided on the peripheral side wall of the outer vertical tube (20) close to the center of the tray (1), and an air outlet spray plate (22) installed at the other end of the transverse tube (21), wherein the cold air spraying direction of the air outlet spray plate (22) points to the bottle blank to be cooled.

2. A mold cooling device for blow molding of preforms according to claim 1, characterized in that: An inner annular slide rail (3) is detachably mounted on the inner peripheral side wall of the inner mounting hole (2), the inner annular slide rail (3) is slidably connected to an inner slide seat (4), and the inner cooling component is detachably arranged on the inner slide seat (4).

3. A mold cooling device for blow molding of preforms according to claim 2, characterized in that: The inner cooling assembly further comprises an inner air inlet pipe (10) arranged at the center of the bottom end of the inner vertical tube (8); an inner positioning seat (5) is installed on one side of the inner sliding seat (4) close to the center of the inner mounting hole (2); a plug hole (6) is provided at the center of the inner positioning seat (5); the inner air inlet pipe (10) is detachably inserted longitudinally into the plug hole (6); and a pad (23) is detachably connected to the top end of the inner vertical tube (8).

4. A mold cooling device for blow molding of preforms according to claim 3, characterized in that: The inner positioning seat (5) is provided with a positioning groove (7) which can be communicated with the insertion hole (6), and the outer peripheral side wall of the inner air inlet pipe (10) is provided with an insertion strip (24) which can be longitudinally inserted into the positioning groove (7) and prevent the inner air inlet pipe (10) from rotating.

5. The mold cooling device for blow molding of preforms according to claim 1, characterized in that: An outer annular slide rail (11) is detachably mounted on the outer peripheral side wall of the tray (1), and an outer slide seat (12) is mounted on one end of the side transverse plate (13) close to the center of the tray (1), and the outer slide seat (12) can slide in an annular manner along the outer annular slide rail (11).

6. A mold cooling device for blow molding of preforms according to claim 5, characterized in that: The side transverse plate (13) is provided with a through slot (14) in the longitudinal direction; the center of the bottom end of the outer vertical tube (20) is connected to an external air inlet pipe (16) which can slide laterally along the slot (14); the two side walls of the side transverse plate (13) are provided with side movable slots (15) which can communicate with the slot (14); the part of the external air inlet pipe (16) located in the slot (14) is detachably sleeved with a sleeve plate (17) which can slide laterally along the side movable slot (15).

7. A mold cooling device for blow molding of preforms according to claim 6, characterized in that: A side wall of the sleeve plate (17) pointing to the side movable groove (15) is provided with a side positioning stud (18), and the side positioning stud (18) can slide laterally along the side movable groove (15) and extend to the outside of the side transverse plate (13), and a nut (19) is provided on a threaded sleeve on a portion of the side positioning stud (18) located outside the side transverse plate (13) for locking the sleeve plate (17) in a transverse position in the side movable groove (15).

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