CN209718591U - A preform clamping device - Google Patents

Abstract

The utility model relates to a bottle blank clamping device, which comprises a body capable of being inserted into the bottle blank and a mandrel used for installing the body on a conveying mechanism of a bottle blowing machine, wherein the body is cylindrical, at least two axial mounting grooves are evenly arranged on the outer side wall of the body along the circumferential direction, a movable block is arranged in each mounting groove in a sliding way, the movable block can slide along the radial direction of the body in the mounting groove, an upper cover plate and a lower cover used for limiting the movable block are respectively arranged on the upper end surface and the lower end surface of the body, the mandrel penetrates through the middles of the upper cover plate, the body and the lower cover and connects the upper cover plate, the diameter of the upper cover plate is smaller than the inner diameter of the bottle blank, a blind hole along the radial direction of the body is also arranged in each mounting groove, an elastic piece is arranged in the blind hole, one end of the elastic piece is butted with the blind end of the blind, the device has the advantages of simple structure, reliable operation and low cost.

Description

A preform clamping device

【Technical field】

The utility model relates to the technical field of bottle blowing machine manufacturing, in particular to a preform clamping device for a bottle blowing machine.

【Background technique】

Plastic bottles are common containers in daily life. The common method of making plastic bottles is to make a test tube-shaped preform into a bottle with a predetermined shape after blow molding. The current bottle blowing molding equipment includes a preform feeding device, a heating device, a blowing device and a bottle discharging device, and each device is arranged in series with a conveying track, and the preform is first transferred from the preform feeding device to the conveying track Next, the preforms are heated and softened by the heating device in sequence, and then blown and formed by the blowing device, and finally the finished product is taken out by the bottle discharging device. During the heating and softening process in the heating device, the preform is clamped by the clamping device and moves forward along the conveying track together with the clamping device. In order to make the preform heated evenly, the clamping device moves forward while carrying the preform Also need rotation movement, the clamping device in the prior art mostly adopts the clamping device with power, the structure is more complicated and the cost is more expensive, the utility model promptly researches and proposes at the deficiency of the prior art.

【Content of utility model】

The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a preform clamping device with simple structure, reliable operation and low cost.

In order to solve the above technical problems, the utility model adopts the following technical solutions: a preform clamping device, including a body and a mandrel that can be inserted into the inside of the preform, and the mandrel is used to install the body on the bottle blowing machine for conveying In terms of mechanism, the body is cylindrical, and at least two axial mounting grooves are evenly opened on the outer wall of the body along the circumferential direction, and a movable block is slidably arranged in each of the mounting grooves. The movable block can slide along the radial direction of the body in the installation groove, and the upper end surface and the lower end surface of the body are respectively provided with an upper cover plate and a lower cover for limiting the position of the movable block, and the upper cover The plate, the body and the lower cover are coaxially arranged, and the mandrel passes through the middle of the upper cover plate, the body and the lower cover and connects the three together, and then the mandrel is connected to the rotating seat of the conveying mechanism, so that the utility model That is, it can rotate with the rotating seat while moving forward with the conveying mechanism. The diameter of the upper cover plate is smaller than the inner diameter of the preform, and each of the installation grooves is also provided with a blind hole along the radial direction of the body , the blind hole is provided with an elastic piece, one end of the elastic piece abuts against the blind end of the blind hole, and the other end abuts against the inner surface of the movable block so that the movable block can move along the radial direction of the body Expand outward, after the preform is socketed in the utility model, the movable block can press against the inner wall of the preform so that the utility model clamps the preform from the inside to the outside.

According to the preform clamping device described above, the diameter of the lower cover is larger than the inner diameter of the preform.

According to the preform clamping device described above, the upper end of the outer surface of the movable block is provided with a chamfered or rounded structure.

According to the preform clamping device mentioned above, the number of the installation slots is four.

According to the above preform clamping device, the elastic member is a spring.

Beneficial effects of the utility model: the preform clamping device of the utility model opens an axial installation groove on the body, and the movable block is arranged in the installation groove and is pushed by the elastic member and moves outward along the radial direction of the body expansion, so that the utility model can clamp the preform from the inside to the outside to ensure that the preform does not tilt or fall off during the heating process, and has the advantages of simple structure, reliable operation and low cost.

【Description of drawings】

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail, wherein:

Fig. 1 is a perspective view of a preform clamping device of the present invention.

Fig. 2 is a cross-sectional view of the preform clamping device of the present invention.

Fig. 3 is a three-dimensional exploded view of the preform clamping device of the present invention.

【Detailed ways】

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in detail.

As shown in Figures 1 to 3, a preform clamping device includes a body 1 and a mandrel 2 that can be inserted into the interior of the preform 007. The body 1 is cylindrical, and the outer wall of the body 1 is evenly opened along the circumferential direction. Four axial mounting grooves 11, each mounting groove 11 is also provided with a blind hole 12 along the radial direction of the body 1, the blind hole 12 is provided with an elastic member 6, preferably, the elastic member 6 is a spring; each installation A movable block 3 is slidably arranged in the groove 11, and the movable block 3 can slide in the radial direction of the body 1 in the installation groove 11. One end of the elastic member 6 abuts against the blind end of the blind hole 12, and the other end abuts against the movable The inner surface of the block 3, so that the movable block 3 is pushed by the elastic member 6 and expands outward in the radial direction of the body 1; The upper cover 4 and the lower cover 5, the upper cover 4, the body 1 and the lower cover 5 are coaxially arranged, the mandrel 2 runs through the middle of the upper cover 4, the body 1 and the lower cover 5 and connects the three After that, the utility model is connected to the conveying mechanism; the diameter of the upper cover plate 4 is smaller than the inner diameter of the preform 007, and the upper end of the outer surface of the movable block 3 is provided with a chamfer or rounded structure, so that the preform 007 can be more smoothly It is socketed on the utility model; the diameter of the lower cover 5 is larger than the inner diameter of the preform 007 so as to position the preform 007 axially.

Claims (5)

1. a kind of bottle embryo clamping device, including can be inserted into bottle embryo (007) internal ontology (1) and for pacifying the ontology (1) Loaded on the mandrel (2) on bottle blowing machine conveying mechanism, it is characterised in that: the ontology (1) is cylindrical, outside the ontology (1) The mounting groove (11) of at least two axial directions is circumferentially uniformly provided on side wall, mounting groove described in every (11) is interior slideably Be provided with movable block (3), the movable block (3) in the mounting groove (11) can radially sliding along the ontology (1), the ontology (1) upper surface and lower end surface is also respectively provided with upper cover plate (4) and lower cover for being limited to the movable block (3) (5), the mandrel (2) penetrate through upper cover plate (4), ontology (1) and lower cover (5) centre and three is linked together, it is described The diameter of upper cover plate (4) is less than the internal diameter of bottle embryo (007), is additionally provided in mounting groove described in every (11) along the ontology (1) Radial blind hole (12), be equipped with elastic component (6) in the blind hole (12), one end of the elastic component (6) is connected to described blind The cecum in hole (12), the other end are connected to the medial surface of movable block (3).

2. bottle embryo clamping device according to claim 1, it is characterised in that: the diameter of the lower cover (5) is greater than bottle embryo (007) internal diameter.

3. bottle embryo clamping device according to claim 1, it is characterised in that: the upper end of the lateral surface of the movable block (3) Equipped with chamfering or rounded feature.

4. bottle embryo clamping device according to any one of claims 1 to 3, it is characterised in that: the number of the mounting groove (11) Amount is four.

5. bottle embryo clamping device according to any one of claims 1 to 3, it is characterised in that: the elastic component (6) is bullet Spring.