Special-shaped bottle blowing mold

Abstract

The utility model relates to the technical field of blow molding molds, in particular to a special-shaped bottle blow molding mold which comprises two mold bodies, rectangular grooves are formed in the surfaces of the mold bodies, first spring rods are symmetrically and fixedly installed in the rectangular grooves, and fixing blocks are fixedly installed at one ends of the two first spring rods. An arc-shaped ejector block is fixedly installed between the two fixing blocks and slidably inserted in the rectangular groove, a moving hole communicated with the rectangular groove is formed in the surface of the die body, a pull rod is slidably installed in the moving hole, one end of the pull rod is fixedly connected with the ejector block, and the other end of the pull rod is fixedly connected with the die body. A limiting assembly used for limiting movement of the pull rod is arranged on the surface of the die body. When the special-shaped bottle needs to be taken out of the cavity, the special-shaped bottle can be conveniently taken out of the cavity through mutual matching of the first spring rod, the fixing block, the ejector block, the pull rod and the limiting assembly, the taking-out speed of a workpiece is increased, and the production efficiency of the workpiece is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of blow molding molds, in particular to a blow molding mold for special-shaped bottles. Background Art

[0002] The molding process of plastic bottles refers to the process of making final plastic products from polymers manufactured by synthetic resin manufacturers. When blow-molding special-shaped bottles, a special blow-molded mold is usually required.

[0003] Since the blow molding is carried out in the mold cavity by relying on the inner wall of the mold cavity and the gas filled into the preform, the outer side of the blow-molded part is tightly attached to the inner wall of the mold cavity during the molding process, so that the part and the mold cavity fit tightly. For some special-shaped bottles, it will be difficult to remove the part from the mold cavity after blow molding, affecting the production efficiency of the part. Utility Model Content

[0004] The purpose of the utility model is to solve the following shortcomings in the prior art: during the molding process, the outer side of the blow-molded part is tightly attached to the inner wall of the mold cavity, so that the part is closely fitted with the mold cavity. For some special-shaped bottles, it will be difficult to remove the part from the mold cavity after the part is blow-molded, affecting the production efficiency of the part, and a special-shaped bottle blow molding mold is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A special-shaped bottle blow molding mold comprises two mold bodies, the surfaces of the two mold bodies are both provided with mold cavities, and the upper ends of the two mold bodies are provided with two sets of locking components for locking the two mold bodies;

[0007] A rectangular groove connected to the cavity is provided on the surface of the mold body, and first spring rods are symmetrically fixedly installed in the rectangular groove, and a fixed block is fixedly installed at one end of two of the first spring rods, and an arc-shaped top block is fixedly installed between the two fixed blocks, and the top block is slidably inserted in the rectangular groove. A movable hole connected to the rectangular groove is provided on the surface of the mold body, and a pull rod is slidably installed in the movable hole, and one end of the pull rod is fixedly connected to the top block. A limiting component for limiting the movement of the pull rod is provided on the surface of the mold body.

[0008] Preferably, the locking assembly comprises two positioning posts and a connecting block respectively fixedly mounted on the upper ends of the two mold bodies, two positioning holes are provided on the surface of the connecting block, and the two positioning posts are respectively inserted into the two positioning holes.

[0009] Preferably, the limiting assembly includes a cross bar fixedly mounted at one end of the pull rod, two support rods rotatably mounted at both ends of the cross bar, and two limit blocks symmetrically fixedly mounted on the mold body, and limit grooves are provided on the surfaces of the two limit blocks.

[0010] Preferably, a plurality of connection holes are opened on the surface of one of the mold bodies, and a plurality of connection columns are vertically fixedly installed on the surface of the other mold body.

[0011] Preferably, the surface of the top block is symmetrically provided with mounting grooves, the upper end of the top block is symmetrically provided with sockets respectively connected with the two mounting grooves, the inner wall of the rectangular groove is symmetrically provided with card slots, and card blocks are slidably installed in the two mounting grooves through a second spring rod, and one end of the card block passes through the socket.

[0012] Preferably, a sealing gasket is fixedly mounted on one adjacent side of the two mold bodies, and the sealing gasket is made of rubber.

[0013] In the utility model, the beneficial effects are:

[0014] When it is necessary to take out the special-shaped bottle from the cavity, the special-shaped bottle can be conveniently taken out from the cavity through the cooperation of the first spring rod, the fixing block, the top block, the pull rod and the limiting assembly, which makes it convenient for the operator to easily take out the workpiece, speeds up the removal speed of the workpiece, and improves the production efficiency of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional structural schematic diagram of a special-shaped bottle blow molding mold proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of one of the mold bodies in a special-shaped bottle blow molding mold proposed by the utility model;

[0017] Figure 3 for Figure 2 A magnified view of the structure in the middle.

[0018] In the figure: 1 mold body, 2 cavity, 3 first spring rod, 4 fixed block, 5 top block, 6 pull rod, 7 positioning column, 8 connecting block, 9 cross bar, 10 support rod, 11 limit block, 12 connecting column, 13 second spring rod, 14 clamping block. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-Figure 3A special-shaped bottle blow molding mold includes two mold bodies 1, each of which has a mold cavity 2 on its surface. Two sets of locking components for locking the two mold bodies 1 are provided at the upper ends of the two mold bodies 1. The locking components include two positioning columns 7 and a connecting block 8 respectively fixedly installed at the upper ends of the two mold bodies 1. Two positioning holes are provided on the surface of the connecting block 8, and the two positioning columns 7 are respectively inserted into the two positioning holes.

[0021] During blow molding, the two mold bodies 1 are spliced ​​together, and then the connecting block 8 is sleeved on the two positioning posts 7, so that the two mold bodies 1 are locked together to prevent the two mold bodies 1 from being separated during film blowing.

[0022] A rectangular groove connected with the cavity 2 is provided on the surface of the mold body 1, and a first spring rod 3 is symmetrically fixedly installed in the rectangular groove, a fixed block 4 is fixedly installed at one end of the two first spring rods 3, an arc-shaped top block 5 is fixedly installed between the two fixed blocks 4, and the top block 5 is slidably inserted in the rectangular groove, and a movable hole connected with the rectangular groove is provided on the surface of the mold body 1, a pull rod 6 is slidably installed in the movable hole, and one end of the pull rod 6 is fixedly connected to the top block 5, and a limiting component for limiting the movement of the pull rod 6 is provided on the surface of the mold body 1, and the limiting component includes a cross bar 9 fixedly installed at one end of the pull rod 6, two support rods 10 rotatably installed at both ends of the cross bar 9 and two limit blocks 11 symmetrically fixedly installed on the mold body 1, and the surfaces of the two limit blocks 11 are provided with limiting grooves.

[0023] Before blow molding, by pulling the cross bar 9, the pull rod 6 is driven to move in the moving hole, and then the pull rod 6 drives the top block 5 to move into the rectangular groove, the first spring rod 3 is compressed, and then the two support rods 10 are rotated, and one end of the support rod 10 is inserted into the limit groove opened on the surface of the limit block 11. At this time, the arc surface of the top block 5 is just aligned with the cavity 2;

[0024] After the blow molding is completed, one end of the support rod 10 is taken out from the limiting groove, and then the ejector block 5 is driven to move away from the rectangular groove under the elastic force of the two first spring rods 3, so that the special-shaped bottle formed in the cavity 2 is ejected, and the special-shaped bottle can be conveniently taken out of the cavity 2, which is convenient for the operator to easily take out the workpiece, speeding up the removal speed of the workpiece and improving the production efficiency of the workpiece.

[0025] A plurality of connection holes are opened on the surface of one of the mold bodies 1, and a plurality of connection columns 12 are vertically fixedly installed on the surface of the other mold body 1. When the two mold bodies 1 are spliced ​​together, the plurality of connection columns 12 are respectively inserted into the plurality of connection holes to align the two mold bodies 1.

[0026] The surface of the top block 5 is symmetrically provided with mounting grooves, the upper end of the top block 5 is symmetrically provided with insertion holes respectively connected with the two mounting grooves, the inner wall of the rectangular groove is symmetrically provided with card grooves, and the two mounting grooves are both slidably installed with card blocks 14 through the second spring rod 13, and one end of the card block 14 passes through the insertion hole.

[0027] When driving the top block 5 to move into the rectangular groove, move the clamping block 14 to compress the second spring rod 13 until the top block 5 is completely inserted into the rectangular groove, then release the clamping block 14. Under the action of the elastic force of the second spring rod 13, one end of the clamping block 14 will be inserted into the clamping groove, thereby fixing the top block 5 to prevent the blow-molded part from driving the top block 5 to move in the rectangular groove during the blow molding process.

[0028] A sealing gasket is fixedly installed on one adjacent side of the two mold bodies 1. The sealing gasket is made of rubber material and can reduce the gap between the two mold bodies 1 and improve the sealing performance of the cavity 2 during blow molding.

[0029] In the utility model, after the blow molding is completed, the lock of the pull rod 6 is released by the locking assembly, and then the top block 5 is driven to move away from the rectangular groove under the action of the elastic force of the two first spring rods 3, so that the special-shaped bottle formed in the cavity 2 is ejected, and the special-shaped bottle can be conveniently taken out of the cavity 2, which is convenient for the operator to easily take out the workpiece, speeds up the removal speed of the workpiece, and improves the production efficiency of the workpiece.

[0030] In general, in view of the technical problem: during the molding process, the outer side of the blow-molded part is tightly attached to the inner wall of the mold cavity 2, so that the part is tightly fitted with the mold cavity 2. For some special-shaped bottles, it will be difficult to remove the part from the mold cavity 2 after the part is blow-molded, affecting the production efficiency of the part; adopting a technical solution: through the mutual cooperation of the first spring rod 3, the fixed block 4, the top block 5, the pull rod 6 and the limiting component, the special-shaped bottle can be conveniently taken out of the cavity 2; because the implementation process of the technical solution is: after the blow molding is completed, the lock of the pull rod 6 is released by the locking component, and then under the action of the elastic force of the two first spring rods 3, the top block 5 will be driven to move away from the rectangular groove, thereby ejecting the special-shaped bottle formed in the cavity 2, and the special-shaped bottle can be conveniently taken out of the cavity 2; so the technical problem can be solved inevitably, and the technical effect achieved is: it is convenient for the operator to easily remove the part, speeding up the removal speed of the part, and improving the production efficiency of the part.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A blow molding mold for a special-shaped bottle, comprising two mold bodies (1), characterized in that: The surfaces of the two mold bodies (1) are each provided with a mold cavity (2), and the upper ends of the two mold bodies (1) are provided with two sets of locking components for locking the two mold bodies (1); The surface of the mold body (1) is provided with a rectangular groove connected to the mold cavity (2), and a first spring rod (3) is symmetrically fixedly installed in the rectangular groove, and one end of each of the two first spring rods (3) is fixedly installed with a fixed block (4), and an arc-shaped top block (5) is fixedly installed between the two fixed blocks (4), and the top block (5) is slidably inserted in the rectangular groove. The surface of the mold body (1) is provided with a movable hole connected to the rectangular groove, and a pull rod (6) is slidably installed in the movable hole, and one end of the pull rod (6) is fixedly connected to the top block (5). The surface of the mold body (1) is provided with a limiting component for limiting the movement of the pull rod (6).

2. A special-shaped bottle blow molding mold according to claim 1, characterized in that: The locking assembly comprises two positioning columns (7) and a connecting block (8) respectively fixedly mounted on the upper ends of the two mold bodies (1); two positioning holes are provided on the surface of the connecting block (8), and the two positioning columns (7) are respectively inserted into the two positioning holes.

3. The special-shaped bottle blow molding mold according to claim 1, characterized in that: The limiting assembly comprises a cross bar (9) fixedly mounted on one end of the pull rod (6), two support rods (10) rotatably mounted on the two ends of the cross bar (9), and two limit blocks (11) symmetrically fixedly mounted on the mold body (1), and limit grooves are provided on the surfaces of the two limit blocks (11).

4. The special-shaped bottle blow molding mold according to claim 1, characterized in that: A plurality of connection holes are provided on the surface of one of the mold bodies (1), and a plurality of connection columns (12) are vertically fixedly mounted on the surface of the other mold body (1).

5. The special-shaped bottle blow molding mold according to claim 1, characterized in that: The top block (5) has mounting grooves symmetrically formed on its surface, and the top block (5) has symmetrical insertion holes respectively connected to the two mounting grooves, and the inner wall of the rectangular groove has symmetrical clamping grooves, and clamping blocks (14) are slidably installed in the two mounting grooves via second spring rods (13), and one end of the clamping block (14) passes through the insertion holes.

6. The special-shaped bottle blow molding mold according to claim 1, characterized in that: A sealing gasket is fixedly mounted on one adjacent side of the two mold bodies (1), and the sealing gasket is made of rubber.

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