A vertical clamping structure

Abstract

The utility model belongs to the technical field of mold locking, and particularly relates to a vertical mold locking structure. Guide rods are vertically fixed in the outer expansion ears on the left and right sides of the lower mold plate through guide rod fixing nuts, and the upper mold plate is movably sleeved on the four groups of guide rods, and the tops of the two groups of guide rods on the same side are connected to guide rod fixing seats, and the middle lower end of the guide rod fixing seat is connected to a mold shifting cylinder assembly, and the lower end of the mold shifting cylinder assembly is connected to the upper mold plate; a brake pull rod is vertically fixed in the reserved holes at the four corners of the lower mold plate through a locking pull rod fixing nut, and the upper end of the brake pull rod is inserted into the reserved holes at the four corners of the upper mold plate, and the top of the brake pull rod is plugged with the locking cylinder assembly and the brake mechanism at the upper end of the upper mold plate. It effectively reduces the machine height problem of large-tonnage vertical mold locking structures, and at the same time makes the volume of hydraulic oil stored in the control structure lower, so as to achieve faster mold locking rigidity, reduce machine energy consumption, and reduce the cycle time of customer production products.

Description

Technical Field

[0001] The utility model belongs to the technical field of mold locking, in particular to a vertical mold locking structure. Background Art

[0002] The main problems of the existing vertical clamping structure in terms of large-scale development are as follows:

[0003] 1. Most of the existing vertical clamping structures continue to use the traditional hydraulic press structure, using a large diameter cylinder for clamping and a small cylinder for moving. The large cylinder is required for high-speed mold moving, and a large filling valve is required to fill the hydraulic oil. The defects of this structure are: when the mold size of the vertical clamping action is large, or a large mold opening stroke is required, the height of the equipment cannot be controlled, and the height of many existing industrial plants cannot meet the requirements of this type of large-scale equipment; in addition, since the main hydraulic cylinder requires a very large volume of hydraulic oil for filling and pressurization, the equipment cycle time is long; and the hydraulic device has the risk of oil leakage and unloading after being enlarged, and continuous pressure replenishment is required to maintain the stable output of the hydraulic system clamping force, which indirectly wastes energy consumption and control accuracy.

[0004] 2. The existing vertical clamping structure uses the upper template brake and the lower template pressurization method. This structural method is the vertical application structure of the current mainstream traditional horizontal two-platen clamping mechanism injection molding machine. The height of the equipment mechanical structure has been greatly reduced in this type of design structure. However, in this control structure, the pull rod is suspended in the oil cylinder of the clamping lower template in the form of a piston rod, and a large amount of hydraulic oil is still required to fill the cylinder, resulting in problems such as a long structural pressurization time and slow pressure relief. At the same time, in each mold shifting process, since the brake mechanism formed by the piston rod exists in a suspended state, the system needs to perform zero point correction every time the structure is controlled, which delays the production cycle, increases energy consumption in the production process, and affects control accuracy. In addition, the piston has linear and rotational motion in this state, which increases the quality requirements for the seal and causes oil leakage hazards. Utility Model Content

[0005] In order to solve the defects and shortcomings of the prior art; the purpose of the utility model is to provide a vertical clamping structure with a simple structure, reasonable design and easy use, which effectively reduces the machine height problem of large-tonnage vertical clamping structure, and at the same time makes the volume of hydraulic oil stored in the control structure lower, so as to achieve faster clamping rigidity, reduce machine energy consumption, and reduce the cycle time of customers' product production.

[0006] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is: it comprises a brake mechanism, a locking cylinder assembly, an upper template, a brake pull rod, a lower template, a locking pull rod fixing nut, a guide rod fixing seat, a guide rod, a mold shifting cylinder assembly, and a guide rod fixing nut; guide rods are vertically fixed in the outer expansion ears on the left and right sides of the lower template through guide rod fixing nuts, the upper template is movably sleeved on four groups of guide rods, and the top ends of the two groups of guide rods on the same side are connected to the guide rod fixing seats, the middle lower end of the guide rod fixing seats is connected to the mold shifting cylinder assembly, and the lower end of the mold shifting cylinder assembly is connected to the upper template; brake pull rods are vertically fixed in the reserved holes at the four corners of the lower template through locking pull rod fixing nuts, the upper end of the brake pull rod is inserted into the reserved holes at the four corners of the upper template, and the top end of the brake pull rod is matched with the locking cylinder assembly and the brake mechanism at the upper end of the upper template.

[0007] Preferably, the locking cylinder assembly consists of a locking cylinder front cover, a locking piston rod, a locking cylinder rear cover, a locking piston positioning ring, and a positioning rod; the locking cylinder front cover is connected to the outer edge of the upper end of the locking cylinder rear cover with a sealing sleeve, the locking cylinder rear cover is inserted with a locking piston positioning ring, the locking cylinder front cover is inserted with a locking piston rod, the locking piston rod and the locking piston positioning ring are connected by bolts, and a positioning rod is connected between the locking piston rod and the locking cylinder rear cover.

[0008] Preferably, the locking piston rod and the front cover of the locking cylinder, and the locking piston locating ring and the rear cover of the locking cylinder are movably interlaced, and sealing rings are provided between the connecting surfaces for sealing connection; the outer shell composed of the locking piston locating ring and the rear cover of the locking cylinder is fixed to the upper template through the end face screw holes and bolts.

[0009] Preferably, the brake mechanism consists of a brake cylinder, a brake drive bracket, and a detection component; brake drive brackets are fixed on the front and rear sides of the brake mechanism, the two brake drive brackets are connected to the brake cylinder on one side, and the output shaft of the brake cylinder is connected to the internal insertion clamp of the brake mechanism, and a pair of detection components are arranged on the surface of the brake mechanism.

[0010] Preferably, the brake mechanism is fixed to the top of the mold locking piston rod by a long bolt and moves synchronously with the mold locking piston rod.

[0011] After adopting the above structure, the beneficial effects of the utility model are as follows: it simplifies the control method under the premise of ensuring that the height of the equipment is effectively controlled and large-scale molds can be installed. There is no need to readjust the mechanical zero point of the equipment before the pull rod is braked. The structure avoids the appearance of piston structure, anti-rotation function of the cylinder structure, and minimization of the cylinder hydraulic oil volume. This makes the equipment control accuracy more efficient and stable, and the energy consumption is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the utility model is described in detail through the following specific implementations and drawings.

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the insertion of the brake pull rod 4 of the utility model;

[0015] Figure 3 This is a schematic structural diagram of the clamping cylinder assembly 2 of the utility model;

[0016] Figure 4 It is a cross-sectional view of the clamping cylinder assembly 2 of the utility model;

[0017] Figure 5 This is a schematic structural diagram of the brake mechanism 1 of the utility model;

[0018] Explanation of the accompanying drawings: brake mechanism 1, locking cylinder assembly 2, upper template 3, brake rod 4, lower template 5, locking rod fixing nut 6, guide rod fixing seat 7, guide rod 8, mold shifting cylinder assembly 9, guide rod fixing nut 10, locking cylinder front cover 11, locking piston rod 12, locking cylinder rear cover 13, locking piston positioning ring 14, positioning rod 15, brake cylinder 16, brake clamp 17, detection component 18. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is described below by specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0020] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the scheme according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0021] See Figure 1-Figure 5As shown, this specific embodiment adopts the following technical scheme: it comprises a brake mechanism 1, a locking cylinder assembly 2, an upper template 3, a brake rod 4, a lower template 5, a locking rod fixing nut 6, a guide rod fixing seat 7, a guide rod 8, a mold shifting cylinder assembly 9, and a guide rod fixing nut 10; guide rods 8 are vertically fixed in the outer ears on the left and right sides of the lower template 5 through guide rod fixing nuts 10, the upper template 3 is movably sleeved on four groups of guide rods 8, and the top ends of the two groups of guide rods 8 on the same side are connected to the guide rod fixing seat 7, the middle lower end of the guide rod fixing seat 7 is connected to the mold shifting cylinder assembly 9, and the lower end of the mold shifting cylinder assembly 9 is connected to the upper template 3; brake rods 4 are vertically fixed in the reserved holes at the four corners of the lower template 5 through locking rod fixing nuts 6, the upper end of the brake rod 4 is inserted into the reserved holes at the four corners of the upper template 3, and the top end of the brake rod 4 is matched with the locking cylinder assembly 2 and the brake mechanism 1 at the upper end of the upper template 3.

[0022] Among them, the locking cylinder assembly 2 is composed of a locking cylinder front cover 11, a locking piston rod 12, a locking cylinder rear cover 13, a locking piston positioning ring 14, and a positioning rod 15; the locking cylinder front cover 11 is sealed on the outer edge of the upper end of the locking cylinder rear cover 13, the locking cylinder rear cover 13 is inserted with a locking piston positioning ring 14, the locking cylinder front cover 11 is inserted with a locking piston rod 12, the locking piston rod 12 and the locking piston positioning ring 14 are connected by bolts, and the locking piston rod 12 and the locking cylinder rear cover 13 are connected with a positioning rod 15; the positioning rod 15 ensures the linear motion sealing of the two, that is, it can achieve the control of the hydraulic sealing characteristics of this structure, prevents the sealing component from being subjected to the responsible working condition of linear motion and rotational motion at the same time, and prevents the occurrence of sealing quality accidents.

[0023] In addition, the locking piston rod 12 and the locking cylinder front cover 11, as well as the locking piston locating ring 14 and the locking cylinder rear cover 13 are movably interlaced, and sealing rings are provided between the connecting surfaces for sealing connection; a small-volume hydraulic oil chamber with a special structure is formed inside the locking cylinder assembly 2, which can obtain the hydraulic oil rigidity very quickly, thereby effectively controlling the locking force production time and having low energy consumption characteristics; the outer shell composed of the locking piston locating ring 14 and the locking cylinder rear cover 13 is fixed to the upper template 3 through the end face screw holes and bolts.

[0024] Furthermore, the brake mechanism 1 is composed of a brake cylinder 16, a brake drive bracket 17, and a detection component 18; the brake drive brackets 17 are fixed on the front and rear sides of the brake mechanism 1, and the two brake drive brackets 17 are connected to the brake cylinder 16 on one side, and the output shaft of the brake cylinder 16 is connected to the inner part of the brake mechanism 1 through the insertion of the clamp, and a pair of detection components 18 are provided on the surface of the brake mechanism 1. The brake cylinder 16 is engaged with the corrugation at the top of the brake rod 4 through the insertion of the clamp to achieve brake locking.

[0025] Furthermore, the brake mechanism 1 is fixed to the top of the mold locking piston rod 12 by a long bolt, and moves synchronously with the mold locking piston rod 12. When the brake mechanism 1 holds the brake pull rod 4, oil enters the side of the mold locking cylinder assembly 2, and the mold locking piston rod 12 is lifted upward, driving the brake mechanism 1 to lift upward as a whole, so that the lower mold plate 5 is pressurized downward, so that a clamping force can be generated between the upper mold plate 3 and the lower mold plate 5, thereby achieving the effect of pressing the mold.

[0026] After adopting the above structure, the beneficial effects of the utility model are as follows: it simplifies the control method under the premise of ensuring that the height of the equipment is effectively controlled and large-scale molds can be installed. There is no need to readjust the mechanical zero point of the equipment before the pull rod is braked. The structure avoids the appearance of piston structure, anti-rotation function of the cylinder structure, and minimization of the cylinder hydraulic oil volume. This makes the equipment control accuracy more efficient and stable, and the energy consumption is lower.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A vertical clamping structure, characterized in that: It comprises a brake mechanism, a locking cylinder assembly, an upper template, a brake pull rod, a lower template, a locking pull rod fixing nut, a guide rod fixing seat, a guide rod, a mold shifting cylinder assembly, and a guide rod fixing nut; guide rods are vertically fixed in the outer expanded ears on the left and right sides of the lower template through guide rod fixing nuts, the upper template is movably sleeved on four groups of guide rods, and the top ends of the two groups of guide rods on the same side are connected to the guide rod fixing seats, the middle lower end of the guide rod fixing seats is connected to the mold shifting cylinder assembly, and the lower end of the mold shifting cylinder assembly is connected to the upper template; brake pull rods are vertically fixed in the reserved holes at the four corners of the lower template through locking pull rod fixing nuts, the upper end of the brake pull rod is inserted into the reserved holes at the four corners of the upper template, and the top end of the brake pull rod is matched and plugged with the locking cylinder assembly and the brake mechanism at the upper end of the upper template.

2. A vertical clamping structure according to claim 1, characterized in that: The clamping cylinder assembly is composed of a clamping cylinder front cover, a clamping piston rod, a clamping cylinder rear cover, a clamping piston positioning ring, and a positioning rod; the clamping cylinder front cover is sealed at the outer edge of the upper end of the clamping cylinder rear cover, a clamping piston positioning ring is inserted into the clamping cylinder rear cover, a clamping piston rod is inserted into the clamping cylinder front cover, the clamping piston rod and the clamping piston positioning ring are connected by bolts, and a positioning rod is connected between the clamping piston rod and the clamping cylinder rear cover.

3. A vertical clamping structure according to claim 2, characterized in that: The locking piston rod and the front cover of the locking cylinder, the locking piston positioning ring and the rear cover of the locking cylinder are kept movably interlaced, and sealing rings are arranged between the connecting surfaces for sealing connection; the outer shell composed of the locking piston positioning ring and the rear cover of the locking cylinder is fixed on the upper template through the end face screw holes and bolts.

4. A vertical clamping structure according to claim 1, characterized in that: The brake mechanism is composed of a brake cylinder, a brake drive bracket, and a detection component; the brake drive brackets are fixed on the front and rear sides of the brake mechanism, the two brake drive brackets are connected to the brake cylinder on one side, and the output shaft of the brake cylinder is connected to the internal insertion clamp of the brake mechanism, and a pair of detection components are arranged on the surface of the brake mechanism.

5. A vertical clamping structure according to claim 4, characterized in that: The brake mechanism is fixed to the top end of the mold locking piston rod by a long bolt and moves synchronously with the mold locking piston rod.

Images