Anti-loosening mold locking device of blow molding hollow forming machine

Abstract

The utility model relates to the technical field of blow molding, in particular to an anti-loosening mold locking device of a blow molding hollow forming machine, which not only can lock a left mold and a right mold, but also can prevent the left mold and the right mold from loosening, can spray a release agent into the left mold and the right mold, and is convenient to use, low in labor intensity and high in practicability. Comprising a bottom plate and a blowing mold, and the blowing mold is located above the bottom plate; the blowing mold comprises a left mold and a right mold; the mold further comprises a moving mechanism and a spraying mechanism, the left mold and the right mold are both installed on the moving mechanism, the moving mechanism is used for moving the left mold and the right mold left and right, and the spraying mechanism is located above the left mold and the right mold and has the function of spraying a release agent.

Description

Technical Field

[0001] This utility model relates to the technical field of blow molding, and in particular to a mold locking device for an anti-loosening blow molding hollow molding machine. Background Technology

[0002] Blow molding is a technique that involves placing a preheated and softened preform into a mold, then blowing high-pressure air into the preform to expand it until it fits snugly against the mold cavity. After cooling and solidification, a hollow bottle is obtained. During the blow molding process, a clamping device is needed to ensure the upper and lower molds (or left and right molds) are tightly fitted together, guaranteeing a sealed mold and ensuring the optimal blow molding effect for the preform. In the prior art, utility model patent application number 202123420885.5 discloses an automatic mold-locking device for injection blow molding machines. It mainly consists of a first mold, a second mold, and clamping plates. During blow molding, the first mold and the second mold are brought into close contact, and the first mold and the second mold are clamped together by two clamping plates to lock and fix the first mold and the second mold. Then, the blank is blow molded in the first mold and the second mold. However, the following problems exist in its use: since the blank is blow molded in the mold cavity under preheating, after the blank is blow molded in the mold, the outer wall of the molded workpiece is tightly attached to the mold cavity and is not easy to remove. Therefore, before blow molding the blank in the mold, the operator still needs to manually spray the mold release agent into the mold cavity. In mass production, relying on manual spraying of mold release agent into the mold is labor-intensive and inconvenient. Therefore, a mold-locking device that can assist the operator in spraying mold release agent into the mold is needed. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a mold locking device for a blow molding machine that can not only lock the left and right molds and prevent them from loosening, but also spray release agent into the left and right molds. It is easy to use, has low labor intensity, and is highly practical.

[0004] This utility model discloses a mold-locking device for an anti-loosening blow molding hollow molding machine, comprising a base plate and a blow molding die, with the blow molding die located above the base plate. The blow molding die includes a left mold and a right mold. It also includes a moving mechanism and a spraying mechanism. Both the left and right molds are mounted on the moving mechanism, which is used to move the left and right molds left and right. The spraying mechanism is located above the left and right molds and functions to spray a release agent. When blow molding a preheated preform, the spraying mechanism first sprays the release agent onto the left and right molds. A release agent is sprayed into the cavity of the right mold. Then, the preform is positioned between the left and right molds. A moving mechanism then brings the left and right molds closer together, locking them tightly and placing the preform within their cavities. The preform is then blow-molded into shape by an external device within these cavities. This process not only locks the left and right molds but also sprays release agent into them, making it convenient, labor-intensive, and highly practical.

[0005] Preferably, the moving mechanism includes two sets of support plates, two sets of hydraulic cylinders A, two sets of push rods, and two sets of sliding rods. The two sets of support plates are fixedly installed on the left and right sides of the upper part of the base plate, respectively. The two sets of hydraulic cylinders A are fixedly installed on the two sets of support plates, respectively. The two sets of push rods are slidably installed on the two sets of support plates, respectively. The two sets of sliding rods are slidably installed on the two sets of support plates, respectively. The input ends of the two sets of push rods are connected to the output ends of the two sets of hydraulic cylinders A, respectively. A set of push rods and sliding rods are fixedly installed on both the left and right molds. When blow molding the preform, firstly, a release agent is sprayed into the cavity of the left and right molds through the spraying mechanism. Then, the preform after preheating is placed between the left and right molds. Then, the two sets of hydraulic cylinders A are opened. The two sets of hydraulic cylinders A, through the two sets of push rods, bring the left and right molds closer to each other in the left and right direction, thereby making the left and right molds fit together tightly, realizing the locking of the left and right molds and placing the preform in the cavity formed by the left and right molds. This facilitates the locking and movement of the left and right molds.

[0006] Preferably, the spraying mechanism includes a lifting mechanism, a spray pipe, a release agent storage tank, a delivery pump, and a delivery hose. The spray pipe is mounted on the lifting mechanism, which is used to raise and lower the spray pipe. Spray nozzles are provided on both the left and right sides of the spray pipe, and the nozzles are connected to the spray pipe. The release agent storage tank is mounted on the base plate, and the delivery pump is mounted on the release agent storage tank. The input end of the delivery pump is connected to the release agent storage tank, and the output end of the delivery pump is connected to the spray pipe via the delivery hose. Before the left and right molds are brought into close contact, the lifting mechanism is first opened to lower the spray pipe, which in turn lowers the nozzles on the spray pipe. Then, the delivery pump is opened, allowing the release agent in the release agent storage tank to enter the spray pipe sequentially through the delivery pump and the delivery hose. The release agent is then sprayed into the cavities of the left and right molds through the nozzles on both sides of the spray pipe, automatically spraying the release agent into the left and right molds. Finally, the spray pipe is raised above the left and right molds. This reduces labor intensity and improves convenience.

[0007] Preferably, the lifting mechanism includes a hoisting frame, a hydraulic cylinder B, and a lifting rod. The hydraulic cylinder B is fixedly installed on the upper end of the hoisting frame, and the lifting rod is slidably installed on the hoisting frame. The upper end of the lifting rod is connected to the output end of the hydraulic cylinder B, and the spray pipe is fixedly installed on the lower end of the lifting rod. The hoisting frame is fixedly installed on the support in the workshop. When adjusting the height of the spray pipe, the hydraulic cylinder B is opened, and the hydraulic cylinder B adjusts the height of the spray pipe through the lifting rod. When spraying the release agent onto the left and right molds, the spray pipe is lowered between the left and right molds. After spraying is completed, the spray pipe is raised above the left and right molds to prevent interference between the left and right molds and the spray pipe during movement.

[0008] Preferably, it also includes two sets of upright plates, two sets of hydraulic cylinders C, two sets of push rods, and two sets of clamping blocks. The front and rear parts of the left and right molds are both inclined surfaces. The two sets of upright plates are respectively fixedly installed on the front and rear parts of the base plate. The two sets of hydraulic cylinders C are respectively fixedly installed on the two sets of upright plates. The two sets of push rods are respectively slidably installed on the two sets of upright plates. The input ends of the two sets of push rods are respectively connected to the output ends of the two sets of hydraulic cylinders C. The two sets of clamping blocks are respectively fixedly installed on the two sets of push rods. The two sets of clamping blocks are located on the front and rear sides of the left and right molds, and the left and right parts of the two sets of clamping blocks are provided with inclined surfaces that cooperate with the inclined surfaces on the left and right molds. This allows the preform to be placed on the left and right molds... Before blow molding in the right mold, the left and right molds are first brought together tightly. Then, two sets of hydraulic cylinders C are opened. The two sets of hydraulic cylinders C use two sets of push rods to bring the two sets of clamping blocks closer together in the front-to-back direction. This brings the two sets of clamping blocks into contact with the front and back parts of the left and right molds, and the inclined surfaces on the two sets of clamping blocks into contact with the inclined surfaces on the left and right molds. The two sets of clamping blocks clamp the left and right molds from front to back. At the same time, because the inclined surfaces on the two sets of clamping blocks are in contact with the inclined surfaces on the left and right molds, the two sets of clamping blocks also have the function of clamping the left and right molds from left to right, which improves the sealing between the left and right molds and prevents the left and right molds from loosening during the blow molding process.

[0009] Preferably, sealing gaskets are provided at the right end of the left mold and the left end of the right mold; this arrangement improves the sealing effect between the left and right molds and facilitates the blow molding of the preform in the left and right molds.

[0010] Preferably, the sealing gaskets on the left and right molds have one sealing gasket containing multiple magnetic pieces and the other sealing gasket containing multiple iron pieces; when the left and right molds are pressed together, the magnetic pieces and iron pieces in the sealing gaskets on the left and right molds attract each other, promoting the tightness between the two sealing gaskets and further improving the sealing effect between the left and right molds.

[0011] Compared with the prior art, the advantages of this utility model are: it can not only lock the left mold and the right mold, but also prevent the left mold and the right mold from loosening, and can also spray release agent into the left mold and the right mold. It is convenient to use, has low labor intensity, and is highly practical. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the first isometric structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the second isometric structure of this utility model;

[0014] Figure 3 This is a structural diagram of the spraying mechanism and the moving mechanism;

[0015] Figure 4 This is a structural diagram of the clamping block, hydraulic cylinder C, and vertical plate, etc.

[0016] Figure 5 This is a structural diagram of the left and right molds.

[0017] The following are labels in the attached diagram: 1. Base plate; 2. Left mold; 3. Right mold; 4. Support plate; 5. Hydraulic cylinder A; 6. Push rod; 7. Sliding rod; 8. Spray pipe; 9. Release agent storage tank; 10. Delivery pump; 11. Delivery hose; 12. Lifting frame; 13. Hydraulic cylinder B; 14. Lifting rod; 19. Vertical plate; 20. Hydraulic cylinder C; 21. Push rod; 22. Clamping block. Detailed Implementation

[0018] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example

[0019] like Figures 1 to 5The blow molding mold locking device of this utility model includes: a base plate 1, a blow molding mold, a moving mechanism, and a spraying mechanism. The blow molding mold is located above the base plate 1. The blow molding mold includes a left mold 2 and a right mold 3, both of which are mounted on the moving mechanism. The moving mechanism is used to move the left mold 2 and right mold 3 left and right. The spraying mechanism is located above the left mold 2 and right mold 3 and has the function of spraying a release agent. When blow molding a preheated preform, the spraying mechanism first sprays the release agent into the cavities of the left mold 2 and right mold 3. An internal release agent is sprayed, and then the preform is positioned between the left mold 2 and the right mold 3. A moving mechanism then brings the left mold 2 and right mold 3 closer together, locking them tightly and placing the preform within their cavities. The preform is then blow-molded within these cavities by an external device. This process not only locks the left mold 2 and right mold 3 but also sprays release agent into them, making it convenient, labor-intensive, and highly practical.

[0020] like Figure 1 and Figure 3 The moving mechanism includes two sets of support plates 4, two sets of hydraulic cylinders A5, two sets of push rods 6, and two sets of sliding rods 7. The two sets of support plates 4 are fixedly installed on the left and right sides of the upper end of the base plate 1, respectively. The two sets of hydraulic cylinders A5 are fixedly installed on the two sets of support plates 4, respectively. The two sets of push rods 6 are slidably installed on the two sets of support plates 4, respectively. The two sets of sliding rods 7 are slidably installed on the two sets of support plates 4, respectively. The input ends of the two sets of push rods 6 are connected to the output ends of the two sets of hydraulic cylinders A5, respectively. A set of push rods 6 and sliding rods 7 are fixedly installed on both the left mold 2 and the right mold 3. Moving rod 7; When blow molding the preform, firstly, a release agent is sprayed into the cavity of the left mold 2 and the right mold 3 through the spraying mechanism. Then, the preform, which has been preheated, is placed between the left mold 2 and the right mold 3. Then, two sets of hydraulic cylinders A5 are opened. The two sets of hydraulic cylinders A5, through two sets of push rods 6, bring the left mold 2 and the right mold 3 closer to each other in the left and right directions, thereby making the left mold 2 and the right mold 3 fit together tightly from left to right, thus locking the left mold 2 and the right mold 3 so that the preform is placed in the cavity formed by the left mold 2 and the right mold 3. This facilitates the locking and movement of the left mold 2 and the right mold 3.

[0021] like Figure 1 and Figure 3The spraying mechanism includes a lifting mechanism, a spray pipe 8, a release agent storage tank 9, a delivery pump 10, and a delivery hose 11. The spray pipe 8 is mounted on the lifting mechanism, which is used to raise and lower the spray pipe 8. Spray nozzles are provided on both the left and right sides of the spray pipe 8, and the nozzles are connected to the spray pipe 8. The release agent storage tank 9 is mounted on the base plate 1. The delivery pump 10 is mounted on the release agent storage tank 9. The input end of the delivery pump 10 is connected to the release agent storage tank 9, and the output end of the delivery pump 10 is connected to the spray pipe 8 through the delivery hose 11. This allows the left mold 2 and right mold 3 to be sprayed. Before the left and right sides are tightly attached, first open the lifting mechanism to lower the spray pipe 8, which in turn lowers the nozzles on the spray pipe 8. Then, turn on the delivery pump 10 to allow the release agent in the release agent storage tank 9 to enter the spray pipe 8 through the delivery pump 10 and the delivery hose 11. After that, the release agent is sprayed into the cavities of the left mold 2 and the right mold 3 through the nozzles on the left and right sides of the spray pipe 8, automatically spraying the release agent into the left mold 2 and the right mold 3. Then, raise the spray pipe 8 to above the left mold 2 and the right mold 3. This reduces labor intensity and improves convenience.

[0022] like Figure 3 The lifting mechanism includes a hoisting frame 12, a hydraulic cylinder B13, and a lifting rod 14. The hydraulic cylinder B13 is fixedly installed on the upper end of the hoisting frame 12, and the lifting rod 14 is slidably installed on the hoisting frame 12. The upper end of the lifting rod 14 is connected to the output end of the hydraulic cylinder B13, and the spray pipe 8 is fixedly installed on the lower end of the lifting rod 14. The hoisting frame 12 is fixedly installed on the support in the workshop. When adjusting the height of the spray pipe 8, the hydraulic cylinder B13 is opened, and the hydraulic cylinder B13 adjusts the height of the spray pipe 8 through the lifting rod 14. When spraying the release agent onto the left mold 2 and the right mold 3, the spray pipe 8 is lowered between the left mold 2 and the right mold 3. After spraying, the spray pipe 8 is raised above the left mold 2 and the right mold 3 to prevent interference between the left mold 2 and the right mold 3 and the spray pipe 8 during movement.

[0023] like Figure 4It also includes two sets of upright plates 19, two sets of hydraulic cylinders C20, two sets of push rods 21, and two sets of clamping blocks 22. The front and rear parts of the left mold 2 and the right mold 3 are both inclined surfaces. The two sets of upright plates 19 are respectively fixedly installed on the front and rear parts of the base plate 1. The two sets of hydraulic cylinders C20 are respectively fixedly installed on the two sets of upright plates 19. The two sets of push rods 21 are respectively slidably installed on the two sets of upright plates 19. The input ends of the two sets of push rods 21 are respectively connected to the output ends of the two sets of hydraulic cylinders C20. The two sets of clamping blocks 22 are respectively fixedly installed on the two sets of push rods 21. The two sets of clamping blocks 22 are located on the front and rear sides of the left mold 2 and the right mold 3. The left and right parts of the two sets of clamping blocks 22 are provided with inclined surfaces that cooperate with the inclined surfaces on the left mold 2 and the right mold 3. Before blow molding in the right mold 3, the left mold 2 and the right mold 3 are first brought together tightly. Then, the two sets of hydraulic cylinders C20 are opened. The two sets of hydraulic cylinders C20 use two sets of push rods 21 to bring the two sets of clamping blocks 22 closer to each other in the front-back direction. This causes the two sets of clamping blocks 22 to contact the front and back parts of the left mold 2 and the right mold 3, and the inclined surfaces on the two sets of clamping blocks 22 to contact the inclined surfaces on the left mold 2 and the right mold 3. The two sets of clamping blocks 22 clamp the left mold 2 and the right mold 3 from front to back. At the same time, because the inclined surfaces on the two sets of clamping blocks 22 are in contact with the inclined surfaces on the left mold 2 and the right mold 3, the two sets of clamping blocks 22 also have the function of clamping the left mold 2 and the right mold 3 from left to right, which improves the sealing between the left mold 2 and the right mold 3 and prevents the left mold 2 and the right mold 3 from loosening during the blow molding process. Example

[0024] Based on Example 1, sealing gaskets are provided at the right end of the left mold 2 and the left end of the right mold 3. One of the sealing gaskets on the left mold 2 and the right mold 3 contains multiple magnetic pieces, and the other sealing gasket contains multiple iron pieces. When the left mold 2 and the right mold 3 are pressed together, the magnetic pieces and iron pieces in the sealing gaskets on the left mold 2 and the right mold 3 attract each other, promoting the tightness between the two sealing gaskets and further improving the sealing effect between the left mold 2 and the right mold 3.

[0025] The hydraulic cylinder A5, spray pipe 8, conveying pump 10, conveying hose 11, and hydraulic cylinder C20 of the anti-loosening blow molding machine locking device of this utility model are all purchased from the market. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0026] 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 and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A locking device for an anti-loosening blow molding machine, comprising a base plate (1) and a blow mold, the blow mold being located above the base plate (1); the blow mold comprising a left mold (2) and a right mold (3); characterized in that, It also includes a moving mechanism and a spraying mechanism. The left mold (2) and the right mold (3) are both installed on the moving mechanism. The moving mechanism is used to move the left mold (2) and the right mold (3) left and right. The spraying mechanism is located above the left mold (2) and the right mold (3). The spraying mechanism has the function of spraying release agent.

2. The anti-loosening mold clamping device for a blow molding machine as described in claim 1, characterized in that, The moving mechanism includes two sets of support plates (4), two sets of hydraulic cylinders A (5), two sets of push rods (6) and two sets of sliding rods (7). The two sets of support plates (4) are fixedly installed on the left and right sides of the upper end of the base plate (1). The two sets of hydraulic cylinders A (5) are fixedly installed on the two sets of support plates (4). The two sets of push rods (6) are slidably installed on the two sets of support plates (4) to the left and right respectively. The two sets of sliding rods (7) are slidably installed on the two sets of support plates (4) to the left and right respectively. The input ends of the two sets of push rods (6) are connected to the output ends of the two sets of hydraulic cylinders A (5) respectively. A set of push rods (6) and sliding rods (7) are fixedly installed on both the left mold (2) and the right mold (3).

3. The anti-loosening mold-locking device for a blow molding machine as described in claim 1, characterized in that, The spraying mechanism includes a lifting mechanism, a spray pipe (8), a release agent storage tank (9), a delivery pump (10), and a delivery hose (11). The spray pipe (8) is installed on the lifting mechanism, which is used to lift the spray pipe (8). Both the left and right sides of the spray pipe (8) are equipped with nozzles, which are connected to the spray pipe (8). The release agent storage tank (9) is installed on the base plate (1). The delivery pump (10) is installed on the release agent storage tank (9). The input end of the delivery pump (10) is connected to the release agent storage tank (9), and the output end of the delivery pump (10) is connected to the spray pipe (8) through the delivery hose (11).

4. The anti-loosening mold clamping device for a blow molding machine as described in claim 3, characterized in that, The lifting mechanism includes a hoisting frame (12), a hydraulic cylinder B (13), and a lifting rod (14). The hydraulic cylinder B (13) is fixedly installed on the upper end of the hoisting frame (12), and the lifting rod (14) is slidably installed on the hoisting frame (12). The upper end of the lifting rod (14) is connected to the output end of the hydraulic cylinder B (13), and the spray pipe (8) is fixedly installed on the lower end of the lifting rod (14).

5. The anti-loosening mold clamping device for a blow molding machine as described in claim 1, characterized in that, It also includes two sets of upright plates (19), two sets of hydraulic cylinders C (20), two sets of push rods (21) and two sets of clamping blocks (22). The front and rear parts of the left mold (2) and the right mold (3) are both inclined surfaces. The two sets of upright plates (19) are fixedly installed on the front and rear parts of the base plate (1). The two sets of hydraulic cylinders C (20) are fixedly installed on the two sets of upright plates (19). The two sets of push rods (21) are slidably installed on the two sets of upright plates (19). The input ends of the two sets of push rods (21) are connected to the output ends of the two sets of hydraulic cylinders C (20). The two sets of clamping blocks (22) are fixedly installed on the two sets of push rods (21). The two sets of clamping blocks (22) are located on the front and rear sides of the left mold (2) and the right mold (3). The left and right parts of the two sets of clamping blocks (22) are provided with inclined surfaces that cooperate with the inclined surfaces on the left mold (2) and the right mold (3).

6. The anti-loosening mold-locking device for a blow molding machine as described in claim 1, characterized in that, Sealing gaskets are provided at the right end of the left mold (2) and the left end of the right mold (3).

7. The anti-loosening mold clamping device for a blow molding machine as described in claim 6, characterized in that, The sealing gaskets on the left mold (2) and the right mold (3) have multiple magnetic pieces in one of the sealing gaskets and multiple iron pieces in the other sealing gasket.

Images