Blow molding machine with blow molding head convenient to replace

Abstract

The utility model discloses a blow molding machine with a blow molding head convenient to replace, and relates to the technical field of blow molding machines. The blow molding machine comprises a base, a supporting seat is arranged on the upper side of the base, a blow molding machine body is arranged on the upper side of the supporting seat, the bottom end of the blow molding machine body is connected with a sleeve, a blow molding head is installed in the sleeve, the sleeve is elastically and slidably sleeved with a pressing ring, and the sleeve is in radial sliding fit with a limiting pin. The pressing ring is pushed downwards, the pressing ring drives the limiting pin to slide out of the annular limiting groove through the transmission strip, so that limiting of the blow molding head can be relieved, the blow molding head is taken down, a new blow molding head is inserted into the sleeve, the pressing ring is loosened, the pressing ring elastically slides to drive the limiting pin to slide through the transmission strip, and the limiting pin is inserted into the annular limiting groove; and by arranging the annular limiting groove, the problem of angle alignment is solved, the convenience of inserting the limiting pin into the annular limiting groove is improved, and meanwhile, the phenomenon of thread retreating caused by thread abrasion or vibration is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of blow molding machines, specifically, it relates to a blow molding machine that facilitates the replacement of blow molding heads. Background Technology

[0002] A blow molding machine is a plastic processing machine that sprays liquid plastic and uses the air force from the machine to blow the plastic body into a mold cavity of a certain shape, thereby making a product.

[0003] Chinese patent CN217574018U discloses a plastic blow molding machine that facilitates the replacement of blow molding heads. Both the outer walls of the discharge pipe and the blow molding pipe are provided with external threads, and the discharge pipe and the blow molding pipe are movably connected to the sleeve through the external threads. The sleeve can effectively connect and fix the discharge pipe and the blow molding pipe.

[0004] However, in the aforementioned plastic blow molding machines that facilitate the replacement of blow molding heads, the blow molding tube is fixed to the sleeve by threads. Replacement requires manual rotation, which is time-consuming. Furthermore, after prolonged use, the threads are prone to wear or vibration, leading to thread stripping, which in turn causes the blow molding tube to loosen or even fall off, affecting the use of the equipment.

[0005] In view of this, this utility model is proposed. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a blow molding machine that is easy to replace the blow molding head.

[0007] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0008] A blow molding machine that facilitates the replacement of blow molding heads includes a base, a support seat on the upper side of the base, a blow molding machine body on the upper side of the support seat, a sleeve connected to the bottom end of the blow molding machine body, a blow molding head installed inside the sleeve, a pressure ring elastically slidably fitted on the sleeve, a limit pin radially slidingly fitted on the sleeve, a transmission bar hinged between the limit pin and the pressure ring, and an annular limit groove on the side of the blow molding head, with the limit pin corresponding to the annular limit groove.

[0009] Optionally, the bottom of the blow molding machine body is provided with a discharge pipe, and a sleeve is fixedly fitted on one end of the discharge pipe that passes through the support base.

[0010] Optionally, the sleeve side is provided with a guide hole corresponding to the limiting pin, and one end of the limiting pin is slidably fitted in the guide hole.

[0011] Optionally, a fixing ring is fixedly fitted on the sleeve, and multiple spring dampers are provided between the fixing ring and the pressure ring, with the multiple spring dampers arranged in a circumferential array between the fixing ring and the pressure ring.

[0012] Optionally, the base is equipped with four linear motors on its upper side, and the support is fixed on the upper side of the four linear motors. A connecting strip is provided on the movable ends of two adjacent linear motors. An electric push rod is provided on one side of the connecting strip. A clamp is provided at the output end of the electric push rod, and the blow molding head is located between the two clamps.

[0013] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0014] By pushing down the pressure ring, the pressure ring drives the limit pin through the transmission bar to slide out of the annular limit groove, thus releasing the limit of the blow molding head. The blow molding head can then be removed, and a new blow molding head can be inserted into the sleeve. The pressure ring is then released, and its elastic sliding drives the limit pin through the transmission bar to slide, allowing the limit pin to insert into the annular limit groove. This improves the efficiency of blow molding head replacement. The annular limit groove also helps avoid alignment issues and improves the ease of inserting the limit pin into the annular limit groove. Furthermore, it prevents thread stripping due to thread wear or vibration.

[0015] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0016] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0017] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of an embodiment of the present invention;

[0019] Figure 3 This is a cross-sectional view of a blow molding head according to an embodiment of the present invention;

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Base, 2. Support seat, 3. Blow molding machine body, 4. Sleeve, 5. Blow molding head, 6. Pressure ring, 7. Limit pin, 8. Transmission bar, 9. Annular limit groove, 10. Linear motor, 11. Discharge pipe, 12. Guide hole, 13. Fixing ring, 14. Spring damper, 15. Connecting bar, 16. Electric push rod, 17. Clamp.

[0022] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings.

[0024] Please see Figure 1-3 As shown, this embodiment provides a blow molding machine that facilitates the replacement of blow molding heads, including a base 1, a support seat 2 on the upper side of the base 1, a blow molding machine body 3 on the upper side of the support seat 2, a sleeve 4 connected to the bottom end of the blow molding machine body 3, a blow molding head 5 installed inside the sleeve 4, a pressure ring 6 elastically slidably fitted on the sleeve 4, a limit pin 7 radially slidingly fitted on the sleeve 4, a transmission bar 8 hinged between the limit pin 7 and the pressure ring 6, and an annular limit groove 9 provided on the side of the blow molding head 5, with the limit pin 7 corresponding to the annular limit groove 9.

[0025] By pushing down the pressure ring 6, the pressure ring 6 drives the limit pin 7 to slide out of the annular limit groove 9 via the transmission bar 8, thus releasing the limit of the blow molding head 5. The blow molding head 5 can be removed, and a new blow molding head 5 can be inserted into the sleeve 4. The pressure ring 6 is then released, and the pressure ring 6 slides elastically through the transmission bar 8, driving the limit pin 7 to slide, so that the limit pin 7 is inserted into the annular limit groove 9. This facilitates the replacement efficiency of the blow molding head 5. By setting the annular limit groove 9, it is easy to avoid the problem of alignment angle, improve the convenience of inserting the limit pin 7 into the annular limit groove 9, and at the same time avoid the phenomenon of thread stripping due to thread wear or vibration.

[0026] Please see Figure 2-3 As shown, the blow molding machine body 3 of this embodiment is provided with a discharge pipe 11 at the bottom end. The sleeve 4 is fixedly sleeved on one end of the discharge pipe 11 through the support seat 2, so that the blow molding machine body 3 can discharge material through the discharge pipe 11. At the same time, the discharge pipe 11 limits the depth of the blow molding head 5 inserted into the sleeve 4, so that the limiting pin 7 can be aligned with the annular limiting groove 9.

[0027] Please see Figure 3 As shown, the sleeve 4 in this embodiment has a guide hole 12 on its side that corresponds to the limiting pin 7. One end of the limiting pin 7 is slidably fitted in the guide hole 12, which facilitates guiding the limiting pin 7 through the guide hole 12 and improves the stability of the sliding of the limiting pin 7.

[0028] Please see Figure 3 As shown, in this embodiment, a fixed ring 13 is fixedly sleeved on the sleeve 4. A plurality of spring dampers 14 are provided between the fixed ring 13 and the pressure ring 6. The plurality of spring dampers 14 are arranged in a circumferential array between the fixed ring 13 and the pressure ring 6, so that the fixed ring 13 can slide elastically through the spring dampers 14.

[0029] Please see Figure 1-3As shown, in this embodiment, the base 1 is provided with four linear motors 10 on its upper side, and the support base 2 is fixed on the upper side of the four linear motors 10. The movable ends of two adjacent linear motors 10 are provided with a connecting strip 15. An electric push rod 16 is provided on one side of the connecting strip 15. A clamp 17 is provided at the output end of the electric push rod 16. The blow molding head 5 is located between the two clamps 17. The clamps 17 are not limited to a specific shape. The corresponding clamps 17 are changed according to the shape of the blow molding mold, so that the electric push rod 16 can drive the clamps 17 to slide. The blow molding mold is clamped by the clamps 17, the linear motors 10 are turned on, the height of the blow molding mold is adjusted, and then the blow molding machine body 3 completes the blow molding work through the blow molding head 5.

[0030] Working principle: The downward pressure ring 6 compresses the spring damper 14, which drives the limit pin 7 to slide out of the annular limit groove 9 through the transmission bar 8, thus releasing the limit of the blow molding head 5. The blow molding head 5 can be removed, and a new blow molding head 5 can be inserted into the sleeve 4 until it is in contact with the discharge pipe 11. The pressure ring 6 is released, and the spring damper 14 pushes the pressure ring 6 to drive the limit pin 7 to slide through the transmission bar 8, so that the limit pin 7 is inserted into the annular limit groove 9. This facilitates the replacement efficiency of the blow molding head 5. By setting the annular limit groove 9, it is easy to avoid the problem of alignment angle, improve the convenience of the limit pin 7 being inserted into the annular limit groove 9, and at the same time avoid the phenomenon of thread stripping due to thread wear or vibration.

[0031] The contents not described in detail in this specification are existing technologies known to those skilled in the art. All electrical appliances in this utility model are powered by an external power source or a built-in battery. No restrictions are placed on the model or specific type of any electrical appliance in this utility model. Those skilled in the art can clearly identify the applicable electrical appliance model, specific type, and power supply method based on common knowledge in the field.

[0032] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A blow molding machine facilitating replacement of a blow molding head, characterized by, include: A base (1) is provided on the upper side of the base (1), and a support seat (2) is provided on the upper side of the support seat (2). A blow molding machine body (3) is provided on the upper side of the support seat (2). A sleeve (4) is connected to the bottom end of the blow molding machine body (3). A blow molding head (5) is installed inside the sleeve (4). A pressure ring (6) is elastically slidably fitted on the sleeve (4). A limit pin (7) is radially slidably fitted on the sleeve (4). A transmission bar (8) is hinged between the limit pin (7) and the pressure ring (6). An annular limit groove (9) is provided on the side of the blow molding head (5). The limit pin (7) corresponds to the annular limit groove (9).

2. A blow molding machine facilitating replacement of a blow molding head according to claim 1, characterized in that, The blow molding machine body (3) has a discharge pipe (11) at the bottom end, and a sleeve (4) is fixedly sleeved on one end of the discharge pipe (11) through the support seat (2).

3. A blow molding machine facilitating replacement of a blow molding head as defined in claim 1, characterized in that, The sleeve (4) has a guide hole (12) on its side that corresponds to the limiting pin (7), and one end of the limiting pin (7) is slidably fitted in the guide hole (12).

4. A blow molding machine facilitating replacement of a blow molding head as defined in claim 1, characterized in that, A fixing ring (13) is fixedly fitted on the sleeve (4), and multiple spring dampers (14) are provided between the fixing ring (13) and the pressure ring (6).

5. A blow molding machine facilitating replacement of a blow molding head as defined in claim 4, characterized in that Multiple spring dampers (14) are arranged in a circular array between the fixed ring (13) and the pressure ring (6).

6. A blow molding machine facilitating replacement of a blow molding head as defined in claim 1, characterized in that, Four linear motors (10) are provided on the upper side of the base (1), and the support base (2) is fixed on the upper side of the four linear motors (10).

7. A blow molding machine facilitating replacement of a blow molding head as defined in claim 6, characterized in that Two adjacent linear motors (10) are connected by a connecting bar (15) at their moving ends. An electric push rod (16) is provided on one side of the connecting bar (15), and a clamp (17) is provided at the output end of the electric push rod (16).

8. A blow molding machine facilitating replacement of a blow molding head as defined in claim 7, characterized in that The blow molding head (5) is located between the two clamps (17).

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