CN219564084U - Positioning and feeding mechanism for insert of blow molding die of automobile headrest and blow molding machine for automobile headrest - Google Patents

Abstract

The utility model provides an insert positioning and feeding mechanism of an automobile headrest blow molding die and an automobile headrest blow molding machine. This car headrest blowing mould inserts location feed mechanism includes: a movable frame which is positioned below the blow mold and can move along a direction perpendicular to the mold opening and closing direction of the blow mold; and the clamping and positioning unit is installed on the movable frame and used for clamping and fixing the lower end parts of the two support connecting rods at the same time, wherein the clamping and positioning unit comprises a fixed clamping block, a movable clamping block and a clamping block driving piece which are correspondingly arranged, two clamping grooves which are respectively corresponding to and matched with the lower end parts of the two support connecting rods are respectively arranged on the fixed clamping block and the movable clamping block, and when the clamping block driving piece drives the movable clamping block to move towards the fixed clamping block, the clamping grooves on the fixed clamping block and the clamping grooves on the corresponding movable clamping blocks clamp and fix the lower end parts of the corresponding support connecting rods.

Description

Positioning and feeding mechanism for insert of blow molding die of automobile headrest and blow molding machine for automobile headrest

Technical Field

The utility model belongs to the technical field of blow molding dies, and particularly relates to an insert positioning and feeding mechanism of an automobile headrest blow molding die and an automobile headrest blow molding machine.

Background

The automobile headrest is a common part on an automobile and has the functions of protecting the head of a human body and improving the riding comfort of the automobile. The existing automobile headrest is generally an injection molding product, and the headrest needs to be assembled with other parts into a complete automobile headrest product through secondary processing after injection molding, so that the automobile headrest has the advantages of high mold development cost, complex later assembly process and high production cost, and is not beneficial to large-scale automatic production.

The cost of the blow molding machine, especially the blow molding mould, is low, and when similar products are formed, the cost of the blow molding machine is about 1/3-1/2 of that of the injection molding machine, and the production cost of the products is low. In blow molding, the parison is molded by a machine head under lower pressure and inflated at low pressure, most of which are 0.2-1.0MPa, so that the residual stress of the product is small, the performance of resisting various strains such as stretching, impact, bending and environment is high, and the parison has good service performance.

In the existing insert blow molding process, the metal insert is usually fed by manual positioning, i.e., the metal insert is positioned in a blow mold and then blow molded by a blow molding machine. However, the efficiency of the manual positioning and feeding method is low, the labor intensity of workers is high, and the stability of the product quality cannot be ensured because each worker cannot ensure the position consistency of the fixing and moving of the metal inserts.

Disclosure of Invention

The utility model aims to solve the technical problems, and aims to provide an insert positioning and feeding mechanism of an automobile headrest blow molding die and an automobile headrest blow molding machine, which can reduce the labor intensity of workers, improve the production efficiency and ensure the stability of the product quality.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

< protocol one >

The utility model provides a positioning and feeding mechanism of a blow molding die insert of an automobile headrest, which is arranged on an automobile headrest blow molding machine comprising a blow molding die and is used for filling and positioning a metal insert into a die cavity of the blow molding die, wherein the metal insert is provided with two supporting connecting rods which are arranged at intervals, and the positioning and feeding mechanism has the characteristics that: a movable frame which is positioned below the blow mold and can move along a direction perpendicular to the mold opening and closing direction of the blow mold; and the clamping and positioning unit is installed on the movable frame and used for clamping and fixing the lower end parts of the two support connecting rods at the same time, wherein the clamping and positioning unit comprises a fixed clamping block and a movable clamping block which are correspondingly arranged in the opening and closing die direction of the blow molding die, and a clamping block driving piece used for driving the movable clamping block to move towards or away from the fixed clamping block, two clamping grooves which are respectively corresponding to the lower end parts of the two support connecting rods and are matched with each other are formed in the fixed clamping block and the movable clamping block, and when the clamping block driving piece drives the movable clamping block to move towards the fixed clamping block, the lower end parts of the corresponding support connecting rods are clamped and fixed by the clamping grooves on the fixed clamping block and the clamping grooves on the corresponding movable clamping block.

The positioning and feeding mechanism of the automobile headrest blow molding die insert provided by the utility model can also have the following characteristics: further comprises: and the two guide rails are arranged in parallel at intervals, and each guide rail extends along the direction perpendicular to the opening and closing die direction of the blow molding die, wherein the movable frame is slidably arranged on the two guide rails through the sliding block.

The positioning and feeding mechanism of the automobile headrest blow molding die insert provided by the utility model can also have the following characteristics: wherein, both ends of a guide rail are respectively provided with a limit inductive switch.

The positioning and feeding mechanism of the automobile headrest blow molding die insert provided by the utility model can also have the following characteristics: the movable frame is U-shaped and comprises a bottom plate and two side plates connected with two side parts of the bottom plate, the fixed clamping block is fixedly arranged on one side plate, the movable clamping block is movably arranged on the other side plate, and the clamping block driving piece is fixedly arranged on the other side plate and connected with the movable clamping block.

The positioning and feeding mechanism of the automobile headrest blow molding die insert provided by the utility model can also have the following characteristics: the two fixed clamping blocks are arranged at intervals up and down, and the two movable clamping blocks are arranged at intervals up and down and correspond to the two fixed clamping blocks respectively.

The positioning and feeding mechanism of the automobile headrest blow molding die insert provided by the utility model can also have the following characteristics: wherein, the top surface of the fixed clamping block of upside is located clamping groove department and still is equipped with the limiting plate.

< protocol two >

The utility model also provides an automobile headrest blow molding machine, which has the characteristics that: a blow molding die; and the insert positioning and feeding mechanism is used for filling and positioning the metal insert into the die cavity of the blow molding die, wherein the insert positioning and feeding mechanism is the insert positioning and feeding mechanism of the automobile headrest blow molding die in the scheme I.

In the automotive headrest blow molding machine provided by the utility model, the following characteristics can be further provided: further comprises: and the insert positioning part is arranged at the bottom of the blow molding die and used for clamping and fixing the middle bending parts of the two support connecting rods at the same time.

In the automotive headrest blow molding machine provided by the utility model, the following characteristics can be further provided: the blow molding die comprises a front die and a rear die which can be mutually opened and closed, wherein the insert positioning part comprises two insert positioning components which are correspondingly arranged and respectively installed at the bottoms of the front die and the rear die, each insert positioning component is provided with a mounting block, a moving rod, a clamping block and a compression spring, the mounting blocks are fixedly arranged at the bottoms of the corresponding front die or rear die, one end part of each moving rod is movably installed on the mounting block, the clamping blocks are fixedly connected with the other end part of each moving rod, two clamping grooves which are respectively corresponding to the middle bending parts of the two supporting connecting rods and are matched with each other are arranged, the compression springs are sleeved outside the moving rods, the two end parts are respectively abutted against the mounting blocks and the clamping blocks, and when the front die and the rear die are mutually closed, the corresponding two clamping grooves on the two clamping blocks clamp and fix the middle bending parts of the corresponding supporting connecting rods.

The actions and effects of the utility model

According to the automobile headrest blow molding die insert positioning and feeding mechanism and the automobile headrest blow molding machine, the movable frame is positioned below the blow molding die and can move along the direction perpendicular to the opening and closing die direction of the blow molding die, the clamping and positioning unit is arranged on the movable frame and comprises the fixed clamping blocks and the movable clamping blocks which are correspondingly arranged in the opening and closing die direction of the blow molding die and the clamping block driving piece for driving the movable clamping blocks to move towards or away from the fixed clamping blocks, and the fixed clamping blocks and the movable clamping blocks are respectively provided with two clamping grooves which correspond to and are matched with the lower ends of the two support connecting rods respectively, so that the lower ends of the two support connecting rods can be clamped and fixed simultaneously; moreover, replace the manual work with the machine, avoided artifical location material loading to appear the fixed of metal insert easily, the inconsistent problem in position of removal, guaranteed product quality's stability.

Drawings

FIG. 1 is a schematic perspective view of an automotive headrest blowing machine in accordance with an embodiment of the present utility model;

FIG. 2 is a schematic perspective view of an insert positioning and loading mechanism in an initial position and in a state of preparing for loading a metal insert according to an embodiment of the present utility model;

FIG. 3 is a schematic perspective view of an insert positioning and feeding mechanism in an initial position and in a metal insert-in state according to an embodiment of the present utility model;

FIG. 4 is a schematic perspective view of an insert positioning and feeding mechanism in an initial position and in a clamped state of a metal insert according to an embodiment of the present utility model;

FIG. 5 is a schematic perspective view of an insert positioning loading mechanism moving to a blow molding station in accordance with an embodiment of the present utility model;

FIG. 6 is a schematic perspective view of an insert positioning and feeding mechanism and a mold in a mold release state according to an embodiment of the present utility model;

FIG. 7 is a schematic diagram of a three-dimensional structure of an insert positioning and feeding mechanism and a mold in a mold closing state in an embodiment of the utility model;

FIG. 8 is a schematic perspective view of an insert positioning loading mechanism and an insert positioning unit in a mold clamping state in an embodiment of the present utility model;

FIG. 9 is a schematic diagram of a three-dimensional structure of an insert positioning and feeding mechanism and a mold in a mold-open state in an embodiment of the present utility model; and

fig. 10 is a schematic perspective view of an insert positioning and feeding mechanism and a mold in a picking state according to an embodiment of the present utility model.

Detailed Description

The conception, specific structure, and technical effects of the present utility model will be further described with reference to the accompanying drawings to fully understand the objects, features, and effects of the present utility model.

< example >

Referring to fig. 1, 6, 7, 9 and 10, the automotive headrest blowing machine 100 in the present embodiment is used for blowing and preparing an automotive headrest 400 (as shown in fig. 9 and 10), the automotive headrest 400 includes a headrest body 410 that is blow molded and a metal insert 420 that is embedded in the headrest body 410, the metal insert 420 has two support links 421 that are arranged at intervals, each support link 421 is composed of a lower end 421a, a middle bending portion 421b and an upper end 421c, the upper end 421c is embedded in the headrest body 410, and the lower end 421a and the middle bending portion 421b are located outside the headrest body 410. The automobile headrest blowing machine 100 includes a blowing machine main body (not shown in the drawing), a blowing mold 10, an insert positioning and feeding mechanism 20, and an insert positioning portion 30.

Referring to fig. 1, 6, 7, 9 and 10, a blow mold 10 is mounted on a blow molding machine body, and has a front mold 11 and a rear mold 12 that can be opened and closed to each other.

Referring to fig. 1-10, an insert positioning and loading mechanism 20 is mounted on the blow molding machine body and below the blow mold 10 for loading and positioning the metal insert 420 into the cavity of the blow mold 10. The insert positioning and feeding mechanism 20 comprises two guide rails 21, a movable frame 22, a movable frame driving part (not shown in the figure) and a clamping and positioning unit 23.

The two guide rails 21 are arranged in parallel at intervals, and each guide rail 21 extends in a direction perpendicular to the mold opening and closing direction of the blow mold 10. In the present embodiment, both end portions of one of the guide rails 21 are provided with limit switches 24, respectively.

The moving frame 22 is located below the blow mold 10 and slidably mounted on the two guide rails 21 by four sliders 22a so as to be movable in a direction perpendicular to the mold opening and closing direction of the blow mold 10. The movable frame 22 has a "U" shape and includes a bottom plate 221 and two side plates 222 connected to both side portions of the bottom plate 211 in the mold opening and closing direction of the blow mold 10.

The moving frame driving part is connected to the moving frame 22 for driving the moving frame 22 to move in a direction perpendicular to the mold opening and closing direction of the blow mold 10. In this embodiment, the moving frame driving part is a pneumatic cylinder, the free end of the piston rod of which is connected to the bottom plate 221; of course, the movable frame driving part can also adopt a hydraulic cylinder or an electric cylinder according to actual needs.

The clamping and positioning unit 23 is mounted on the moving frame 22 for simultaneously clamping and fixing the lower end portions 421a of the two support links 421. The clamp positioning unit 23 includes two fixed clamp blocks 231, two movable clamp blocks 232, a clamp block mounting assembly 233, and a clamp block driver 234.

The two fixed clamp blocks 231 and the two movable clamp blocks 232 are arranged correspondingly in the mold opening and closing direction of the blow mold 10.

Two fixing and clamping blocks 231 are fixedly installed on one side plate 222 in an up-down interval arrangement, and each fixing and clamping block 231 is provided with two first clamping grooves 231a which respectively correspond to and are matched with the lower end portions 421a of the two supporting connecting rods 421. In this embodiment, the top surface of the upper fixed clamping block 231 is located at the first clamping groove 231a and is further provided with a limiting plate 231b.

The two movable clamping blocks 232 are arranged at intervals up and down and respectively correspond to the two fixed clamping blocks 231, and are movably mounted on the other side plate 222 through the clamping block mounting assembly 233, so that the two movable clamping blocks can move towards or away from the fixed clamping blocks 21 at the same time. Each movable clamp block 232 is provided with two second clamp grooves 232a corresponding to the two first clamp grooves 231a of the corresponding fixed clamp block 231 and matched with the lower end 421a of the support link 421. When the movable clamp block 232 is driven to move toward the fixed clamp block 231 by the clamp block driving member 234, the clamp groove 231a on the fixed clamp block 231 and the clamp groove 232a on the corresponding movable clamp block 232 clamp and fix the lower end 421a of the corresponding support link 421.

The clamp block mounting assembly 233 is used to mount two movable clamp blocks 232 on the corresponding side walls 222, and has four guide rods 233a and a mounting plate 233b. Four guide rods 233a are arranged in a rectangular shape, and each guide rod 233a is movably mounted on the side plate 222; one side surface of the mounting plate 233b is fixedly connected with one end of the four guide rods 233a, and two movable clamping blocks 232 are fixedly arranged on the other side surface of the mounting plate 233b.

The clamping block driving member 234 is fixedly mounted on the other side plate 222 and connected to the mounting plate 233b, and is used for driving the mounting plate 233b to move toward or away from the fixed clamping block 231, thereby simultaneously driving the two movable clamping blocks 232 to move toward or away from the fixed clamping block 231. In this embodiment, the clamping block driving member 234 is a pneumatic cylinder, and the free end of the piston rod thereof is connected to the clamping block mounting plate; of course, the clamping block driving member 234 may be a hydraulic cylinder or an electric cylinder, as required.

Referring to fig. 1 and 8, an insert positioning portion 30 is installed at the bottom of the blow mold 10 for simultaneously clamping and fixing the middle bent portions 421b of the two support links 421. The insert positioning portion 30 includes two insert clamping and positioning assemblies 31 that are disposed correspondingly and mounted at the bottoms of the front mold 11 and the rear mold 12, respectively. Each insert positioning assembly 31 has a mounting block 311, three moving rods 312, a clamping block 313, and three compression springs 314.

The mounting block 311 is fixedly provided at the bottom of the corresponding front mold 11 or rear mold 12.

The three moving bars 312 are arranged at intervals along a direction perpendicular to the mold opening and closing direction of the blow mold 10, and are respectively movable along the mold opening and closing direction of the blow mold 10; one end of each moving rod 312 is movably mounted on the mounting block 311.

The holding block 313 is fixedly connected to the other ends of the three moving bars 312 so as to be movable in the mold opening and closing direction of the blow mold 10. The clamping block 313 is provided with two clamping grooves 313a corresponding to and matching the middle bending portions 421b of the two support links 421, respectively.

The three compression springs 314 are respectively sleeved outside the three moving rods 312, and two end parts of each compression spring 314 are respectively abutted against the mounting block 311 and the clamping block 313. When the front mold 11 and the rear mold 12 are closed to each other, the middle bent portion 421b of the support link 421 is clamped and fixed by the corresponding two clamping grooves 313a by the spring force of the compression spring 314.

The operation of the automotive headrest blowing machine 100 in this embodiment is as follows:

in step S1, the insert positioning and feeding mechanism 20 is located at the initial position, and the support link 421 is opposite to the clamping groove 231a, so as to prepare for placing the metal insert 420 into the insert positioning and feeding mechanism 20, as shown in fig. 2.

In step S2, the lower end 421a of the support link 421 is placed into the support groove 23a, as shown in fig. 3.

In step S3, the clamping block driving member 234 drives the mounting plate 233b to move, and further drives the clamping block 232 to move toward the fixed clamping block 231, and the clamping groove 231a on the fixed clamping block 231 and the clamping groove 232a on the corresponding movable clamping block 232 clamp and fix the lower end 421a of the corresponding supporting link 421, as shown in fig. 4.

In step S4, the moving frame driving component drives the moving frame 22 to move, and further drives the metal insert 420 to move to the corresponding position (i.e. the loading position) of the blow mold 10, as shown in fig. 5 and 6.

In step S5, the front mold 11 and the rear mold 12 are clamped, and the middle bent portion 421b of the support link 421 is clamped and fixed by the clamping grooves 313a of the two clamping blocks 313 in the clamp positioning portion 30, as shown in fig. 7 and 8.

In step S6, after the blow molding is completed, the front mold 11 and the rear mold 12 are opened as shown in fig. 9.

In step S7, the moving frame driving component drives the moving frame 22 to move, so as to drive the metal insert 420 to return to the initial position, as shown in fig. 10.

In step S8, the clamping block driving member 234 drives the mounting plate 233b to move, and further drives the clamping block 232 to move away from the fixed clamping block 231, and the car headrest 400 is removed from the insert positioning and feeding mechanism 20, so as to complete the blow molding operation of a car headrest.

Example operation and Effect

According to the automobile headrest blow molding die insert positioning and feeding mechanism and the automobile headrest blow molding machine, the movable frame is positioned below the blow molding die and can move along the direction perpendicular to the opening and closing die direction of the blow molding die, the clamping and positioning unit is arranged on the movable frame and comprises the fixed clamping blocks and the movable clamping blocks which are correspondingly arranged in the opening and closing die direction of the blow molding die and the clamping block driving piece for driving the movable clamping blocks to move towards or away from the fixed clamping blocks, and the fixed clamping blocks and the movable clamping blocks are respectively provided with the two clamping grooves which correspond to and are matched with the lower ends of the two support connecting rods respectively, so that the lower ends of the two support connecting rods can be clamped and fixed simultaneously; moreover, replace the manual work with the machine, avoided artifical location material loading to appear the fixed of metal insert easily, the inconsistent problem in position of removal, guaranteed product quality's stability.

In addition, because the insert positioning and feeding mechanism is further provided with two guide rails which are arranged in parallel at intervals, each guide rail extends along the direction perpendicular to the opening and closing direction of the blow molding die, the movable frame is slidably mounted on the two guide rails through the sliding block, and the two end parts of one guide rail are respectively provided with a limit induction switch, so that the fixing and moving position consistency of the metal insert is further ensured, and the stability of the product quality is further ensured.

In addition, because the movable frame is U-shaped, the movable frame comprises a bottom plate and two side plates connected with two side parts of the bottom plate, the fixed clamping block is fixedly arranged on one side plate, the movable clamping block is movably arranged on the other side plate, the clamping block driving piece is fixedly arranged on the other side plate and connected with the movable clamping block, and the movable clamping frame has a simple structure, is easy to manufacture and is convenient to install.

In addition, because the quantity of fixed grip block and activity grip block is two, and two fixed grip blocks are upper and lower interval arrangement, and two activity grip blocks are upper and lower interval arrangement to correspond with two fixed grip blocks respectively, simple structure, the installation of being convenient for has also further improved the fixed effect of centre gripping.

In addition, because the top surface of the fixed clamping block on the upper side is positioned at the first clamping groove and is also provided with a limiting plate, the consistency of the fixed position of the metal insert is further provided.

In addition, because the insert positioning part comprises two insert positioning components which are correspondingly arranged and respectively installed at the bottoms of the front die and the rear die, each insert positioning component is provided with a mounting block, a moving rod, a clamping block and a compression spring, the mounting blocks are fixedly arranged at the bottoms of the corresponding front die or rear die, one end part of each moving rod is movably installed on the mounting block, the clamping block is fixedly connected with the other end part of each moving rod, two clamping grooves which are respectively corresponding to and matched with the middle bending parts of the two supporting connecting rods are formed, the compression springs are sleeved outside the moving rods, the two end parts are respectively abutted with the mounting blocks and the clamping blocks, and the middle bending parts of the two supporting connecting rods can be clamped and fixed at the same time, so that the stability of the product quality is further ensured.

The above embodiments are preferred examples of the present utility model, and are not intended to limit the scope of the present utility model.

Claims (9)

1. An automotive headrest blow mold insert positioning and feeding mechanism provided on an automotive headrest blow molding machine comprising a blow mold for positioning a metal insert charge into a cavity of the blow mold, the metal insert having two support links arranged in a spaced apart relationship, comprising:

a movable frame which is located below the blow mold and is movable in a direction perpendicular to a mold opening/closing direction of the blow mold; and

a clamping and positioning unit which is arranged on the movable frame and is used for simultaneously clamping and fixing the lower end parts of the two supporting connecting rods,

wherein the clamping and positioning unit comprises a fixed clamping block and a movable clamping block which are correspondingly arranged in the opening and closing direction of the blow molding die, and a clamping block driving piece for driving the movable clamping block to move towards or away from the fixed clamping block,

two clamping grooves which are respectively corresponding to and matched with the lower end parts of the two supporting connecting rods are respectively arranged on the fixed clamping block and the movable clamping block,

when the clamping block driving piece drives the movable clamping block to move towards the fixed clamping block, the clamping groove on the fixed clamping block and the corresponding clamping groove on the movable clamping block clamp and fix the lower end part of the corresponding supporting connecting rod.

2. The automotive headrest blow mold insert positioning and loading mechanism according to claim 1, further comprising:

two guide rails which are arranged in parallel at intervals and each extend along the direction perpendicular to the opening and closing direction of the blow mold,

the movable frame is slidably mounted on the two guide rails through a sliding block.

3. The automotive headrest blow mold insert positioning and feeding mechanism of claim 2, wherein:

and limit inductive switches are respectively arranged at two end parts of one guide rail.

4. The automotive headrest blow mold insert positioning and feeding mechanism of claim 2, wherein:

wherein the movable frame is U-shaped and comprises a bottom plate and two side plates connected with two side parts of the bottom plate,

the fixed clamping block is fixedly arranged on one side plate,

the movable clamping block is movably arranged on the other side plate,

the clamping block driving piece is fixedly arranged on the other side plate and is connected with the movable clamping block.

5. The automotive headrest blow mold insert positioning and feeding mechanism of claim 4, wherein:

wherein the number of the fixed clamping blocks and the number of the movable clamping blocks are two,

the two fixed clamping blocks are arranged at intervals up and down,

the two movable clamping blocks are arranged at intervals up and down and respectively correspond to the two fixed clamping blocks.

6. The automotive headrest blow mold insert positioning and feeding mechanism of claim 5, wherein:

wherein, the upside the top surface of fixed grip block is located clamping groove department still is equipped with the limiting plate.

7. An automotive headrest blowing machine, comprising:

a blow molding die; and

the insert positioning and feeding mechanism is used for filling and positioning the metal insert into a die cavity of the blow molding die,

wherein the insert positioning and feeding mechanism is the insert positioning and feeding mechanism of the automobile headrest blow molding die according to any one of claims 1 to 6.

8. The automotive headrest blowing machine of claim 7, further comprising:

and the insert positioning part is arranged at the bottom of the blow molding die and used for clamping and fixing the middle bending parts of the two support connecting rods at the same time.

9. The automotive headrest blowing machine of claim 8, wherein:

wherein the blow molding die comprises a front die and a rear die which can be mutually opened and closed,

the insert positioning portion includes two insert positioning assemblies correspondingly arranged and respectively mounted at bottoms of the front mold and the rear mold,

each insert positioning assembly is provided with a mounting block, a moving rod, a clamping block and a compression spring,

the mounting block is fixedly arranged at the bottom of the corresponding front die or rear die,

one end part of the moving rod is movably arranged on the mounting block,

the clamping block is fixedly connected with the other end part of the movable rod and is provided with two clamping grooves which respectively correspond to and are matched with the middle bending parts of the two supporting connecting rods,

the compression spring is sleeved outside the movable rod, two end parts are respectively abutted with the mounting block and the clamping block,

when the front die and the rear die are mutually closed, the corresponding two clamping grooves on the two clamping blocks clamp and fix the corresponding middle bending parts of the supporting connecting rods.