Blowing needle plate assembly for bottle blowing machine for producing double-mouth bottles

Abstract

The utility model discloses a blowing needle plate assembly for a bottle blowing machine for producing double-mouth bottles. The blowing needle plate assembly comprises a blowing needle plate and adjustable blowing needles, an adjustable blowing needle is mounted at the bottom of the blowing needle plate; the adjustable blowing needle comprises a blowing needle, an adjustable sleeve, a fixed sleeve, an adjusting nut and a fixed nut; an adjustable sleeve is sleeved outside the connecting end A of the blowing needle, and the connecting end A can move up and down in the adjustable sleeve; a fixed sleeve is sleeved outside the adjustable sleeve; the blowing needle, the adjustable sleeve and the fixed sleeve are connected through an adjusting screw; and the fixing sleeve is connected with the blowing needle plate through a fixing nut. According to the blowing needle plate assembly for the bottle blowing machine for producing the double-mouth bottles, the double-mouth bottles can be formed at a time, and secondary processing is not needed; the adjustable blowing needle is adopted, the requirement can be met after an original blowing needle plate is adjusted, the original blowing needle can be directly used without being changed, the center distance of a bottle opening can be adjusted within a certain range, large-scale replacement of the blowing needle due to change of a production process is avoided, and resources and cost are saved.

Description

Technical Field

[0001] This utility model relates to the field of blow molding machine technology, specifically to a blow needle plate assembly for a blow molding machine used in the production of double-necked bottles. Background Technology

[0002] The blow molding process of a double-necked bottle blow molding machine is generally divided into two parts: preheating and blow molding. First, the preform made of plastic raw material is irradiated with infrared high-temperature lamps to heat and soften the preform body. At the same time, the preform neck needs to be cooled to maintain the bottle neck shape. Then, the preheated preform is placed into the blow mold, and the blow needle plate assembly starts to work. Compressed air is introduced into the preform through the blow needle, causing the plastic preform to inflate and adhere tightly to the inner wall of the mold. After cooling and demolding, a double-necked bottle is obtained.

[0003] Under current methods, producing double-necked bottles with different center distances requires replacing the blow-off plate, which not only increases equipment procurement costs but also wastes production time due to downtime for replacement. Furthermore, replacing existing blow-off plates and needles on a large scale due to changes in production processes would be a significant expense.

[0004] Therefore, it is necessary to develop a blown needle plate assembly for blow molding machines that produce double-necked bottles. Through design, the blown needle plate and blown needle resources can be reused, saving resources and costs, and avoiding the waste of production time caused by downtime for replacement. Utility Model Content

[0005] Purpose of the utility model: In order to overcome the above shortcomings, the purpose of this utility model is to provide a blown needle plate assembly for a blow molding machine for producing double-necked bottles. The assembly is reasonably designed and can achieve one-time molding of double-necked bottles without secondary processing. It adopts an adjustable blown needle, and the original blown needle plate can be adjusted to meet the requirements. The original blown needle can be used directly without modification. The center distance of the bottle mouth can be adjusted within a certain range, avoiding large-scale replacement of the blown needle due to changes in the production process, saving resources and costs, and has broad application prospects.

[0006] Technical solution: A blown needle plate assembly for a blow molding machine used in the production of double-necked bottles, the blown needle plate assembly comprising:

[0007] Blow-through plate;

[0008] An adjustable blow needle is provided, wherein an adjustable blow needle is installed at the bottom of the blow needle plate; the adjustable blow needle includes a blow needle, an adjustable sleeve, a fixed sleeve, an adjusting nut, and a fixed nut; an adjustable sleeve is provided over the connecting end A of the blow needle, and the connecting end A can move up and down within the adjustable sleeve; a fixed sleeve is provided over the adjustable sleeve; the blow needle, the adjustable sleeve, and the fixed sleeve are connected by an adjusting nut; the fixed sleeve is connected to the blow needle plate by a fixed nut.

[0009] In existing technologies, producing double-necked bottles with different center distances requires replacing the blown needle plate, which not only increases equipment procurement costs but also wastes production time due to downtime for replacement. The blown needle plate assembly described in this invention uses an adjustable blown needle. By adjusting the adjusting nut between the blown needle, the adjustable sleeve, and the fixed sleeve, the vertical position of the blown needle within the adjustable sleeve can be adjusted. Within a certain range, the center distance of the bottle necks can be adjusted to adapt to different bottle blowing requirements, reducing equipment costs and downtime losses.

[0010] Furthermore, in the aforementioned blow molding machine assembly for producing double-necked bottles, two adjustable blow needles are installed at the bottom of the blow molding plate.

[0011] The original blow needle plate can be adjusted to meet the requirements, and the original blow needle can be used directly without modification. This avoids large-scale replacement of the blow needle due to changes in the production process, saving resources and costs.

[0012] Furthermore, the aforementioned blown needle plate assembly for a blow molding machine used in the production of double-necked bottles also includes:

[0013] Fixed blow needle; the bottom of the blow needle plate is equipped with one adjustable blow needle and one fixed blow needle.

[0014] Furthermore, in the above-mentioned blow molding machine assembly for producing double-necked bottles, the blow molding plate has an opening, the connecting end B of the fixed blow molding needle matches the opening, and the connecting end B of the fixed blow molding needle is inserted into the opening and fixedly connected to the blow molding plate.

[0015] The fixed connection between the fixed blow needle and the blow needle plate can be achieved in the following ways:

[0016] 1. Threaded connection. The connecting end B of the fixed blow needle is machined with an external thread that matches the opening of the blow needle plate. By rotating the fixed blow needle, its external thread and the internal thread of the opening on the blow needle plate are engaged with each other, thereby achieving a tight connection.

[0017] 2. Sealant connection. After inserting the connecting end B of the fixed blow needle into the opening of the blow needle plate, fill the gap between the connecting end B and the opening with sealant. After the sealant has cured, firmly bond the fixed blow needle to the blow needle plate.

[0018] 3. Interference fit connection. By making the outer diameter of the connecting end B of the fixed blow needle slightly larger than the inner diameter of the opening of the blow needle plate, pressure is used to press the connecting end B into the opening. During the pressing process, the connecting end B will undergo a certain elastic deformation, thereby achieving a tight fit with the blow needle plate.

[0019] Furthermore, the blown needle plate assembly for the blown bottle production machine described above has four transverse positioning holes spaced apart along the circumferential direction on the lower side of the adjustable sleeve.

[0020] Furthermore, in the blow molding machine assembly for producing double-necked bottles described above, transverse fixing holes adapted to the transverse positioning holes are provided at intervals along the circumferential direction on the lower side of the fixing sleeve; one end of the adjusting nut is inserted into the transverse fixing hole in sequence, and the transverse positioning hole and the connecting end A of the blow molding needle are pressed together, thereby fixing the blow molding needle, the adjustable sleeve and the fixing sleeve together.

[0021] The center distance of the bottle mouth can be adjusted within a certain range by adjusting the four adjusting nuts between the blow needle, the adjustable sleeve, and the fixed sleeve. During adjustment, loosen the adjusting nuts, adjust the position of the blow needle, and then tighten the adjusting nuts to re-secure the blow needle, adjustable sleeve, and fixed sleeve together, thereby achieving the adjustment of the center distance of the bottle mouth.

[0022] Furthermore, in the above-mentioned blow molding machine assembly for producing double-necked bottles, the end face of the fixing sleeve is provided with vertical fixing holes that penetrate the fixing sleeve at intervals along the circumferential direction; the blow molding plate is provided with fixing holes that are adapted to the vertical fixing holes; one end of the fixing nut is inserted into the vertical fixing holes and the fixing holes in sequence, thereby fixing the fixing sleeve and the blow molding plate together.

[0023] The beneficial effects of this utility model are as follows: The blown needle plate assembly for producing double-necked bottles described in this utility model is reasonably designed, enabling one-time molding of double-necked bottles without secondary processing, thus significantly improving production efficiency; the original blown needle plate can meet the requirements after adjustment, and the original blown needle can be used directly without modification, avoiding large-scale replacement of blown needles due to changes in production processes, saving resources and costs; by adjusting the nut, the up and down position of the blown needle in the adjustable sleeve can be adjusted, thereby achieving fine adjustment of the blown needle length; the center distance of the bottle mouth can be adjusted within a certain range, which can adapt to the production needs of various bottle mouths and has broad application prospects. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the blown needle plate assembly for a blown bottle blowing machine used in the production of double-necked bottles according to the present invention. Figure 1 ;

[0025] Figure 2 This is a schematic diagram of the blown needle plate assembly for a blown bottle blowing machine used in the production of double-necked bottles according to the present invention. Figure 2 ;

[0026] Figure 3 This is a top view of the blow needle plate assembly for the blow molding machine used in the production of double-necked bottles according to this utility model;

[0027] Figure 4 This is a schematic diagram of the connection end A, adjustable sleeve, and fixed sleeve of the blow needle plate assembly for the blow needle plate assembly of the blow needle plate assembly for producing double-necked bottles according to this utility model.

[0028] Figure 5 This is a schematic diagram of the connection end A and the adjustable sleeve of the blow needle plate assembly for the blow needle plate assembly of the blow needle plate assembly for producing double-necked bottles according to this utility model.

[0029] Figure 6 This is a top sectional view of the adjustable sleeve, fixed sleeve, adjusting nut, and fixed nut of the blow molding machine assembly for producing double-necked bottles according to the present invention.

[0030] In the diagram: 1. Blow needle plate, 11. Opening, 12. Fixed opening, 2. Adjustable blow needle, 21. Blow needle, 21. Connecting end A211, 22. Adjustable sleeve, 22. Horizontal positioning opening, 221. Fixed sleeve, 23. Horizontal fixing opening, 231. Vertical fixing opening, 232. Adjusting nut, 24. Fixed nut, 25. Fixed blow needle, 3. Connecting end B31. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1 , 2 Examples 1, 2, 3, 4, 5, 6 and Examples 1 and 2 further illustrate this utility model.

[0032] Example 1

[0033] like Figure 1 , 2 As shown, the blown needle plate assembly for producing double-necked bottles described in this utility model includes a blown needle plate 1, an adjustable blown needle 2, and a fixed blown needle 3. It can realize the one-time molding of double-necked bottles without secondary processing, which significantly improves production efficiency. At the same time, the one-time molding method makes the overall structure of the double-necked bottle more stable and the forming accuracy of the bottle mouth higher.

[0034] like Figure 3 As shown, the blow needle plate 1 has an opening 11. The connecting end B31 of the fixed blow needle 3 matches the opening 11, and the connecting end B31 of the fixed blow needle 3 is inserted into the opening 11 and fixedly connected to the blow needle plate 1. The fixing method can be a threaded connection, a sealant connection, or an interference fit connection.

[0035] like Figure 1 , 2As shown, the adjustable blow needle 2 of this utility model includes a blow needle 21, an adjustable sleeve 22, a fixed sleeve 23, an adjusting nut 24, and a fixed nut 25. The adjustable sleeve 22 is fitted over the connecting end A211 of the blow needle 21, allowing the connecting end A211 to move up and down within the adjustable sleeve 22. The fixed sleeve 23 is fitted over the adjustable sleeve 22. The blow needle 21, the adjustable sleeve 22, and the fixed sleeve 23 are connected by the adjusting nut 24. By loosening the adjusting nut 24, the vertical position of the blow needle 21 within the adjustable sleeve 22 can be adjusted, thereby achieving fine-tuning of the blow needle length to adapt to different bottle blowing requirements.

[0036] like Figure 3 As shown, the end face of the fixing sleeve 23 is provided with a vertical fixing hole 232 that penetrates the fixing sleeve 23. The blow needle plate 1 is provided with a fixing hole 12 that matches the vertical fixing hole 232. One end of the fixing nut 25 is inserted into the vertical fixing hole 222 and the fixing hole 12 in sequence, thereby fixing the fixing sleeve 23 and the blow needle plate 1 together.

[0037] Replacing all existing blow needles for the production of double-necked bottles would be a significant expense. However, the design of the blow needle plate assembly in this embodiment allows for the continued use of these resources. The original blow needle plate can be adjusted to meet the requirements, and the original blow needles can be used directly without modification. This avoids large-scale replacement of blow needles due to changes in production processes, saving resources and costs.

[0038] Example 2

[0039] Based on the structural foundation of Embodiment 1 and above, such as Figure 1 , 2 As shown in 3, 4, 5, and 6.

[0040] like Figure 4 , 5 As shown in Figure 6, the blown needle plate assembly for producing double-necked bottles of this utility model has four transverse positioning holes 221 spaced apart along the circumferential direction on the lower side of the adjustable sleeve 22, and transverse fixing holes 231 spaced apart along the circumferential direction on the lower side of the fixed sleeve 23, which are adapted to the transverse positioning holes 221.

[0041] One end of the adjusting nut 24 is sequentially inserted into the transverse fixing hole 231, the transverse positioning hole 221 and the connecting end A211 of the blow needle 21 to press against each other, thereby fixing the blow needle 21, the adjustable sleeve 22 and the fixed sleeve 23 together.

[0042] When adjustment is needed, loosen the four adjusting nuts 24, adjust the position of the blow needle 21, and then tighten the adjusting nuts 24 to re-fix the blow needle 21, the adjustable sleeve 22, and the fixed sleeve 23 together.

[0043] Furthermore, the end face of the fixing sleeve 23 is provided with vertical fixing holes 232 that penetrate the fixing sleeve 23 at intervals along the circumferential direction; the blow needle plate 1 is provided with fixing holes 12 that are adapted to the vertical fixing holes 232.

[0044] When fixing, one end of the fixing nut 25 is inserted into the vertical fixing hole 232 and the fixing hole 12 in sequence, thereby fixing the fixing sleeve 23 and the blow needle plate 1 together.

[0045] In summary, the blown needle plate assembly for blow molding machines used in the production of double-necked bottles described in this utility model, through its unique structural design, effectively solves the problems of replacing blown needles, wasting resources, and increasing costs caused by changes in the production process in the production of double-necked bottles in the prior art.

[0046] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements can be made without departing from the principle of the present utility model, and these improvements should also be considered within the protection scope of the present utility model.

Claims

1. A blow pin plate assembly for a blow molding machine for producing a double mouth bottle, characterized by, The blowing needle plate assembly comprises: a blowing needle plate (1); an adjustable blowing needle (2) is installed at the bottom of the blowing needle plate (1); the adjustable blowing needle (2) comprises a blowing needle (21), an adjustable sleeve (22), a fixed sleeve (23), an adjusting nut (24), and a fixed nut (25); the adjustable sleeve (22) is sleeved on the connecting end A (211) of the blowing needle (21), and the connecting end A (211) is movable up and down in the adjustable sleeve (22); the fixed sleeve (23) is sleeved on the adjustable sleeve (22); the blowing needle (21), the adjustable sleeve (22), and the fixed sleeve (23) are connected through the adjusting nut (24); and the fixed sleeve (23) is connected with the blowing needle plate (1) through the fixed nut (25).

2. The blow pin plate assembly for a blow molding machine for producing double finish bottles according to claim 1, wherein Two adjustable blowing needles (2) are installed at the bottom of the blowing needle plate (1).

3. The blow pin plate assembly for a blow molding machine for producing double finish bottles according to claim 1, wherein, Further comprising: a fixed blowing needle (3); one adjustable blowing needle (2) and one fixed blowing needle (3) are installed at the bottom of the blowing needle plate (1).

4. The blow pin plate assembly for a blow molding machine that produces double finish bottles according to claim 3, wherein A hole (11) is formed in the blowing needle plate (1), the connecting end B (31) of the fixed blowing needle (3) is matched with the hole (11), the connecting end B (31) of the fixed blowing needle (3) is inserted into the hole (11) and fixedly connected with the blowing needle plate (1).

5. The blow pin plate assembly for a blow molding machine for producing dual finish bottles of claim 1 wherein, Four lateral positioning holes (221) are formed in the lower end side of the adjustable sleeve (22) and spaced apart in the circumferential direction.

6. The blow pin plate assembly for a blow molding machine that produces double finish bottles according to claim 5, wherein, Lateral fixing holes (231) matched with the lateral positioning holes (221) are formed in the lower end side of the fixed sleeve (23) and spaced apart in the circumferential direction; one end of the adjusting nut (24) is inserted into the lateral fixing hole (231), the lateral positioning hole (221), and the connecting end A (211) of the blowing needle (21) in sequence and abuts tightly, so as to fixedly connect the blowing needle (21), the adjustable sleeve (22), and the fixed sleeve (23) together.

7. The blow pin plate assembly for a blow molding machine that produces dual finish bottles of claim 1 wherein, Vertical fixing holes (232) penetrating the fixed sleeve (23) are formed in the end face of the fixed sleeve (23) and spaced apart in the circumferential direction; the blowing needle plate (1) is provided with fixing holes (12) matched with the vertical fixing holes (232); one end of the fixed nut (25) is inserted into the vertical fixing hole (232) and the fixing hole (12) in sequence, so as to fixedly connect the fixed sleeve (23) and the blowing needle plate (1) together.

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