WO2017152778A1

WO2017152778A1 - Mold-locking component on mold frame in rotary wheel blow molding machine

Info

Publication number: WO2017152778A1
Application number: PCT/CN2017/074750
Authority: WO
Inventors: 沈军; 刘丽华; 叶鹏
Original assignee: 江苏新美星包装机械股份有限公司
Priority date: 2016-03-07
Filing date: 2017-02-24
Publication date: 2017-09-14
Also published as: CN105599278B; CN105599278A

Abstract

A mold-locking component on a mold frame in a rotary wheel blow molding machine, comprising: at least two mold-locking sleeves (7) provided with notches (71) on a left mold frame (1), a spring (5) sleeved at the lower extremity of a guiding shaft (3) in a guiding sleeve (21) on a right mold frame (2), where the upper and lower extremities of the spring (5) respectively presses against and connected to the right mold frame (2) and a mount base (4) at the bottom of the guiding shaft (3), and the spring (5) always has the tendency of moving the mount base downwards away from the right mold frame (2), a driving component on the mount base (4), when fitted with a cam, capable of driving the guiding shaft (3) to move vertically up and down in the guiding sleeve (21), and several guiding sections (32) separated by gaps and provided on a guiding shaft body (31) of the guiding shaft (3). When locking a mold, the guiding sections (32) on the guiding shaft (3) are engaged in the mold-locking sleeves (7) via the notches (71) and then moves vertically downwards so as to make the guiding shaft body (31) to move into the mold-locking sleeves (7); when unlocking, the guiding shaft (3) can be detached from the mold-locking sleeves (7) by means of fitting the guiding sections (32) to the notches (71). The mold-locking component greatly reduces precision requirements on mounting and manufacturing, thus greatly reducing production costs.

Description

Clamping assembly on the formwork in a rotary blow molding machine

Technical field

The invention relates to the technical field of a rotary blow molding machine, and in particular to a clamping assembly on a formwork in a rotary blow molding machine.

Background technique

The mold base in the rotary blow molding machine includes a left mold frame and a right mold frame, and the left mold frame and the right mold frame are opened and closed at the opening and closing mold position in the rotary blow molding machine, and the left mold frame is used. And a right mold frame is provided with a mold clamping assembly for locking the left mold frame and the right mold frame in a clamping state, and the mold clamping assembly can be closed under the cooperation of the mold clamping driving mechanism on the opening and closing mold station. The left and right formwork of the state are clamped and unlocked. Usually, the mode-locking drive mechanism is a cam including a rising surface and a falling surface mounted on the opening and closing mold station. The structure of the conventional mold clamping assembly includes: at least one clamping sleeve is fixedly disposed on the left mold frame, and a guiding sleeve is fixedly disposed on the right mold frame, and a guiding shaft is vertically disposed in the guiding sleeve, and the guiding shaft is fixedly connected There are clamping pins which are used in one-to-one correspondence with the clamping sleeves. Each of the clamping pins is arranged parallel to the guiding shaft. The bottom of the guiding shaft is fixedly connected with a mounting seat. The lower end of the guiding shaft is provided with a spring, the upper side of the spring, The lower ends are respectively pressed and connected to the right mold frame and the mounting seat, and the spring has a tendency to move the mounting seat downward away from the right mold frame, and the cam is mounted on the mounting seat with the cam on the opening and closing mold station. The matching driving component, the driving component and the cam can drive the guiding shaft to move vertically up and down in the guiding sleeve, and when the clamping is performed, the guiding axial movement moves downward until the respective clamping pins on the guiding shaft are respectively inserted into the corresponding In the mold clamping sleeve, the left and right mold bases are locked in the mold clamping state; when unlocking, the guide shaft moves upwards to separate the respective mold clamping pins from the corresponding mold clamping sleeves, thereby releasing the left and right mold bases. Locked.

The above-mentioned structure of the clamping assembly has the following defects: each of the clamping pins must be aligned with the center of the corresponding clamping sleeve before the clamping can be performed, which is proposed for the machining precision and the mounting precision of the clamping pin and the clamping sleeve. High requirements have resulted in very high manufacturing and installation costs for the entire mold clamping assembly.

Summary of the invention

The technical problem to be solved by the present invention is to provide a mold clamping assembly on a formwork in a rotary blow molding machine which is simple in structure, greatly reduced in manufacturing cost and installation cost.

In order to solve the above problems, the technical solution adopted by the present invention is: a clamping assembly on a formwork in a rotary blow molding machine, comprising: at least two clamping sleeves fixedly disposed on the left mold frame, on the right mold frame A guide sleeve is fixedly disposed, and a guide shaft is vertically disposed in the guide sleeve, and a bottom is fixedly connected to the bottom of the guide shaft, and a lower end of the guide shaft is provided with a spring, and upper and lower ends of the spring are respectively pressed and connected to the right mold On the frame and the mounting seat, the spring always has a tendency to move the mounting seat away from the right mold base. The mounting seat is also provided with a driving component for cooperating with the cam on the opening and closing mold station, and the driving component can cooperate with the cam. Driving the guide shaft to vertically move up and down in the guide sleeve, all the mold clamping sleeves are arranged on the left mold frame in a vertical direction, and each of the mold clamping sleeves is provided with a slit arranged in a vertical direction, The guiding shaft comprises a guiding shaft body, and the guiding shaft body is provided with guiding sections respectively corresponding to the clamping sleeves, and the height of each guiding section is not lower than the height of the corresponding clamping sleeve, when the left and right molds are combined Each segment of the guide segment The gap can be entered into the corresponding clamping sleeve through the gap of the corresponding clamping sleeve, and the width of each of the clamping sleeves is smaller than the diameter of the guiding shaft body; when the clamping is performed, the guiding shaft is vertically moved upward to make each guiding section The opposite ends of the corresponding clamping sleeve are respectively opposite, so that each guiding section can be clamped into the corresponding clamping sleeve through the corresponding gap, and then the guiding shaft is moved vertically downward to make the guiding shaft body Move to each of the clamping sleeves to lock the left and right mold bases in the mold clamping state; when unlocking, the guide shafts move vertically upwards so that each of the mold sleeves has only a guiding section, and each guiding section can pass the corresponding gap Disengaged from the corresponding clamping sleeve, thereby unlocking the left and right moldings.

Further, in the aforementioned rotary blow molding machine, the clamping assembly on the formwork, wherein each of the guiding sections is constituted by two inwardly concave, symmetrical guiding planes milled on the surface of the guiding shaft body, The distance between the two guiding planes on each guiding segment is smaller than the width of the slit on the corresponding clamping sleeve.

Further, in the above-mentioned rotary type bottle blowing machine, the mold clamping assembly on the mold frame, wherein the driving component is a roller mounted on the mounting seat, and the roller can roll on the cam on the opening and closing mold station. The rolling of the roller along the cam drives the guide shaft to move vertically up and down in the guide sleeve.

Further, in the above-mentioned rotary type bottle blowing machine, the mold clamping assembly on the mold frame, wherein the mounting seat is provided with an anti-rotation pin, the anti-rotation pin is set in the anti-rotation sleeve, and the anti-rotation The sleeve is fixedly mounted on the right formwork.

Further, in the above-mentioned rotary type bottle blowing machine, the mold clamping assembly on the mold frame, wherein the left and right mold frames are further provided with a damper for preventing a sharp collision when the left and right mold frames are closed.

Further, in the above-mentioned rotary type bottle blowing machine, the clamping assembly on the formwork, wherein the guiding shaft is provided with three guiding sections, the three guiding sections are respectively located at the upper, middle and lower parts of the guiding shaft.

Further, in the above-mentioned rotary type bottle blowing machine, the clamping assembly on the formwork, wherein the guiding sleeve is divided into three sections, and the three-stage guiding sleeves are respectively set on the upper, middle and lower parts of the guiding shaft, each The installation position of the segment guide sleeve does not affect the clamping sleeve clamping mode.

The invention has the advantages that: since the guiding section is arranged on the guiding shaft, the guiding shaft passes through the guiding section from the gap of the clamping sleeve into the clamping sleeve or out of the locking sleeve, thereby clamping and unlocking the left and right moldings. The structure of the clamping assembly is greatly simplified, so that the installation precision and the manufacturing precision requirement of the entire clamping assembly are greatly reduced, thereby greatly reducing the production cost of the entire clamping assembly, and the clamping assembly can be left. The right mold frame is fast, reliable and stable to lock or unlock.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the structure of a mold clamping assembly on a formwork in a rotary blow molding machine according to the present invention in a mold clamping state.

2 is a schematic view showing the connection structure of the guide shaft, the anti-rotation pin and the mounting seat of FIG. 1.

Figure 3 is a schematic view showing the structure taken along the line A-A of Figure 2;

4 is a schematic view showing the structure of the left and right formwork shown in the cross-sectional view taken along line B-B of FIG.

Fig. 5 is a structural schematic view showing the left and right formwork shown in the cross-sectional view taken along line B-B of Fig. 1 in an unlocked state.

detailed description

The invention will be further described in detail below with reference to the drawings and preferred embodiments.

As shown in FIG. 1 , FIG. 2 , FIG. 3 , FIG. 4 and FIG. 5 , the clamping assembly on the formwork in the rotary blow molding machine comprises: at least two clamping sleeves fixedly disposed on the left mold frame 1 7. The guide sleeve 21 is fixedly disposed on the right mold base 2, and the guide sleeve 21 is vertically disposed with the guide shaft 3. The guide sleeve 21 described in this embodiment is divided into three sections, and the three guide sleeves 21 are respectively set in the sleeve The upper, middle and lower portions of the guide shaft 3, the mounting position of each of the guide sleeves 21 does not affect the clamping of the clamping sleeve 7. The advantage of the upper, middle and lower three-stage structure of the guide sleeve 21 is that the vertical movement of the guide shaft 3 can be guided more stably, thereby improving the stability of the clamping or unlocking of the mold clamping assembly. The bottom of the guide shaft 3 is fixedly connected with a mounting seat 4, and the lower end of the guiding shaft 3 is provided with a spring 5, and the upper and lower ends of the spring 5 are respectively pressed and connected to the right mold base 2 and the mounting seat 4, The spring 5 always has a tendency to move the mounting seat 4 away from the right mold base 2, and the mounting seat 4 is provided with a driving member for cooperating with a cam on the opening and closing mold station, and the driving member can cooperate with the cam to drive the guiding shaft. 3 vertically moving up and down in the guide sleeve 21, the driving component described in this embodiment is a roller 6 mounted on the mounting seat 4, and the roller 6 can roll along the cam on the opening and closing mold station, thereby driving The guide shaft 3 moves vertically up and down in the guide sleeve 21. The cam is a very common drive mechanism in the mechanical field, which includes a rising surface and a descending curved surface. During operation, the roller 6 can roll up along the rising surface of the cam, and the roller can also roll down along the falling surface of the cam. In this embodiment, a plurality of clamping sleeves 7 are disposed, and all of the clamping sleeves 7 are arranged on the left molding frame 1 in a vertical direction. Each of the clamping sleeves 7 is provided with a slit 71 disposed in a vertical direction. The guiding shaft 3 includes a guiding shaft body 31. The guiding shaft body 31 is provided with three guiding segments 32 respectively corresponding to the locking sleeves 7, and the height of each guiding portion 32 is not lower than the corresponding clamping sleeve 7 Height, when the left and right mold frames are closed, each segment of the guiding segment 32 can pass the corresponding clamping mode The slits 71 on the sleeve 7 enter into the corresponding mold sleeves 7, and the width of the slits 71 on each of the mold sleeves 7 is smaller than the diameter of the guide shaft body 31. In the present embodiment, the three-section guide segments 32 on the guide shaft 3 are respectively located at the upper, middle and lower portions of the guide shaft 3. The upper, middle and lower sections of the guide section 32 are provided on the guide shaft 3 for the purpose of making the left and right formwork locks more stable. In this embodiment, each of the guiding segments 32 is formed by milling two inwardly concave, symmetrical guiding planes 321 on the surface of the guiding shaft body 31, which can enable the guiding segments 32 to be snapped into the corresponding locks. In the die sleeve 7, the strength and stability of the guide shaft 3 are again ensured. The distance between the two guiding planes 321 on each of the guiding segments 32 is smaller than the width of the slits 71 on the corresponding clamping sleeve 7. The advantage that each section of the guiding section 32 is designed to be milled out of the two guiding planes 32 is that it can ensure that the guiding shaft 3 moves vertically upwards when the clamping is performed, so that the guiding sections 32 are respectively facing the corresponding gaps 71, thereby Each of the guiding segments 32 can be moved into the corresponding clamping sleeve 7 through the corresponding corresponding slits 71, and then the guiding shaft 3 is moved vertically downward to cause the guiding shaft body 31 to be snapped into each of the clamping sleeves 7, thereby The left formwork 1 and the right formwork 2 are locked in a clamping state; when unlocked, the guide shaft 3 is vertically moved upwards so that each of the clamping sleeves 7 has only a guiding section 32, and each guiding section 32 can pass through the corresponding opening 71. The corresponding clamping sleeve 7 is disengaged, thereby unlocking the left formwork 1 and the right formwork 2. In this embodiment, in order to ensure that the two guiding planes 321 on each guiding section 32 are directly opposite the gap 71 on the corresponding clamping sleeve 7, and to ensure that the roller 6 rolls along the cam, the mounting seat is provided with an anti-rotation pin 8 The anti-rotation pin 8 is set in the anti-rotation sleeve 9, and the anti-rotation sleeve 9 is fixedly mounted on the right mold base 2. In addition, in the embodiment, a damper 10 for violent collision when the left and right mold frames are clamped is prevented between the left and right mold bases. As shown in FIG. 1, the damper 10 is mounted on the right mold base. 2, the damper 10 can effectively avoid the violent collision between the components on the left and right mold frames during the mold clamping, thereby reducing the noise when the left and right mold frames are closed, and also avoiding the between parts Wear or damage due to violent collisions.

An advantage of the invention is that since the guide section 32 is provided on the guide shaft 3, the guide shaft 3 itself also constitutes a clamping shaft, and the guide shaft 3 enters the clamping sleeve 7 from the gap 72 of the clamping sleeve 7 through the guiding section 32. Or disengaged from the clamping sleeve 7, thereby clamping and unlocking the left and right molding frames, the structure of the clamping assembly is greatly simplified, so that the installation precision and the manufacturing precision requirements of the entire clamping assembly are greatly reduced, thereby greatly reducing The production cost of the entire mold clamping assembly; and the clamping assembly can quickly and stably lock and unlock the left and right mold bases.

Claims

The clamping assembly on the mould frame of the rotary blow molding machine comprises: at least two clamping sleeves are fixedly arranged on the left mould frame, and a guiding sleeve is fixedly arranged on the right mould frame, and the guiding sleeve is vertically arranged a guiding shaft, a bottom of the guiding shaft is fixedly connected with a mounting seat, and a lower end of the guiding shaft is provided with a spring, and upper and lower ends of the spring are respectively pressed and connected to the right mold base and the mounting seat, and the spring always has a mounting seat Moving away from the right formwork, the mounting seat is also provided with a driving member for cooperating with the cam on the opening and closing mold station, and the driving member cooperates with the cam to drive the guiding shaft to move vertically up and down in the guiding sleeve. The utility model is characterized in that: all the clamping sleeves are arranged on the left mold frame in a vertical direction, each of the clamping mold sleeves is provided with a vertical opening, the guiding shaft comprises a guiding shaft body, and the guiding The shaft body is provided with guiding sections respectively corresponding to the clamping sleeves, and the height of each guiding section is not lower than the height of the corresponding clamping sleeve. When the left and right moldings are closed, each guiding section can Through the gap on the corresponding clamping sleeve In the corresponding clamping sleeve, the width of the slit on each of the clamping sleeves is smaller than the diameter of the guiding shaft body; when the clamping is performed, the guiding shaft is vertically moved upwards so that the guiding sections are respectively opposite to the corresponding clamping sleeves. a gap, so that each guiding section can be clamped into the corresponding clamping sleeve through the corresponding gap when clamping, and then the guiding shaft is moved vertically downward to move the guiding shaft body into each clamping sleeve, thereby The left and right mold frames are locked in the mold clamping state; when unlocking, the guide shafts are vertically moved upwards so that each of the mold sleeves has only a guiding portion, and each of the guiding portions can be separated from the corresponding mold sleeve through the corresponding gap, thereby Unlock the left and right formwork.
A mold clamping assembly on a formwork in a rotary blow molding machine according to claim 1, wherein each of the guide segments is inwardly recessed and symmetrical by milling on the surface of the guide shaft body. The guiding plane is configured such that the distance between the two guiding planes on each guiding section is smaller than the width of the gap on the corresponding clamping sleeve.
A mold clamping assembly on a formwork in a rotary blow molding machine according to claim 1 or 2, wherein said driving member is a roller mounted on the mounting seat, and the roller is capable of opening and closing the mold station. The upper cam rolls and the roller rolls along the cam to drive the guide shaft up and down in the guide sleeve.
The mold clamping assembly on the formwork of the rotary blow molding machine according to claim 3, wherein the mounting seat is provided with an anti-rotation pin, and the anti-rotation pin is set in the anti-rotation sleeve, The anti-rotation sleeve is fixedly mounted on the right mold base.
A mold clamping assembly on a formwork frame of a rotary blow molding machine according to claim 1 or 2, wherein the left and right formwork frames are further provided for preventing the left and right formwork from being severely clamped when the mold is closed. Collision damper.
The mold clamping assembly on the formwork of the rotary blow molding machine according to claim 1 or 2, wherein the guide shaft is provided with three guiding sections, and the three guiding sections are respectively located on the upper, middle, and Lower part.
The clamping assembly on the formwork of the rotary blow molding machine according to claim 1 or 2, wherein the guide sleeve is divided into three sections, and the three sections of the guide sleeve are respectively set on the guide shaft. In the middle and lower parts, the mounting position of each guiding sleeve does not affect the clamping of the clamping sleeve.