Press fit mechanism for hot press molding

Abstract

The utility model discloses a pressing mechanism for hot press molding, and belongs to the technical field of hot press molding. Comprising a pressing machine fixing plate and a pressing machine bottom plate which are oppositely arranged, a plurality of sets of guiding shafts arranged in parallel are arranged between the pressing machine fixing plate and the pressing machine bottom plate, the multiple sets of guiding shafts are movably arranged on a pressing plate arranged parallel to the pressing machine bottom plate in a penetrating mode, and a driving module capable of driving the pressing plate to move towards the pressing machine bottom plate is arranged on the pressing machine fixing plate; an upper die is detachably connected to the side, facing the press bottom plate, of the pressing plate, a heating unit is arranged in the upper die, and a lower die corresponding to the upper die is detachably connected to the press bottom plate. A longitudinal limiting shaft is arranged on the pressing plate and / or the pressing machine bottom plate, and the two ends of the longitudinal limiting shaft can be embedded into and abut against the pressing plate and the pressing machine bottom plate respectively. The press fit mechanism for hot press molding solves the problem that an existing press fit mechanism for hot press molding is uneven in press fit force in the using process.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hot press forming technical field especially relates to a kind of hot press forming with pressing mechanism. BACKGROUND

[0002] In hot press forming process, the pressing performance of pressing mechanism directly affects the quality of forming product and production efficiency.The existing hot press forming with pressing mechanism in the process of use there is uneven pressing force, not enough convenient operation, adjustment and maintenance cost higher problem.Uniformity of pressing force will lead to the difference of product in different positions forming effect, extremely easy to cause product local deformation, thickness is inconsistent, leading to product quality can not meet production demand. INVENTION CONTENTS

[0003] The utility model discloses a hot press forming with pressing mechanism, solve the uneven pressing force of the existing hot press forming with pressing mechanism in the process of use problem.

[0004] To achieve the above object, the utility model adopts the technical scheme of a kind of hot press forming with pressing mechanism, including the pressing machine fixed plate and pressing machine bottom plate of relative arrangement, the pressing machine fixed plate with the pressing machine bottom plate between being provided with several groups of parallel arrangement's guide shaft, several groups of the guide shaft movably passes and is equipped on the pressing plate parallel with the pressing machine bottom plate arrangement, the pressing machine fixed plate is provided with the drive module that can drive the pressing plate moves towards the pressing machine bottom plate;

[0005] The pressing plate side towards the pressing machine bottom plate is detachably connected with upper die, the upper die is provided with heating unit, the pressing machine bottom plate is detachably connected with lower die corresponding with the upper die arrangement;

[0006] Among them, the pressing plate and / or the pressing machine bottom plate are provided with longitudinal limit shaft, both ends can be embedded and abut on the pressing plate and the pressing machine bottom plate respectively.

[0007] Optionally, a plurality of bolts with screw thread connection with the pressing plate are provided on the upper die, and the lower die is provided with a positioning pin that can be embedded in the pressing machine bottom plate.

[0008] Optionally, the drive module is a gas-liquid booster cylinder, and a piston rod of the gas-liquid booster cylinder passes through the pressing machine fixed plate and is connected with the pressing plate.

[0009] Optionally, the heating unit is a heating pipe, and the heating pipe can be embedded in the upper die.

[0010] Optionally, the upper rack frame is arranged on the lower rack frame, and the bottom of the lower rack frame is provided with shockproof feet.

[0011] Optionally, the edge of the front end operation work opening is provided with a two-hand starting button and an emergency stop button.

[0012] Optionally, the upper rack frame is arranged on the lower rack frame, and the bottom of the lower rack frame is provided with shockproof feet.

[0013] Compared with the prior art, the beneficial effects achieved by the present application are as follows: the pressing plate is limited by multiple guide shafts to improve displacement accuracy, thereby improving the accuracy of mold closing between the upper mold arranged on the pressing plate and the lower mold arranged on the pressing machine bottom plate. Meanwhile, the maximum stroke of the pressing plate movement can be limited by the longitudinal limiting shaft arranged on the pressing plate and / or the pressing machine bottom plate, and when the upper mold and the lower mold are pressed, the pressure of the upper mold acting on the lower mold can be balanced to ensure the uniformity of the pressing force. BRIEF DESCRIPTION OF DRAWINGS

[0014] The present application will be further described below in combination with the drawings and embodiments.

[0015] Fig. 1 is a structure diagram of the pressing mechanism for hot press forming in the preferred embodiment of the present application;

[0016] Fig. 2 is a front view structure diagram of the pressing mechanism for hot press forming in the preferred embodiment of the present application;

[0017] 1, pressing machine fixed plate; 2, pressing machine bottom plate; 3, guide shaft; 4, pressing plate; 5, upper mold; 6, lower mold; 7, longitudinal limiting shaft; 8, positioning pin; 9, gas-liquid pressure intensifier cylinder; 10, upper rack frame; 11, safety grating; 12, two-hand starting button; 13, emergency stop button; 14, lower rack frame. DETAILED DESCRIPTION

[0018] The present application will be further described below in combination with the drawings and embodiments.

[0019] It should be noted that if the embodiment involves directional indications (such as up, down, bottom, top, etc.), the directional indications are only used to explain the relative position relationship, motion condition, etc. between the components in a certain posture, and if the certain posture changes, the directional indications will also change accordingly. The terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included one or more features. Unless otherwise specified and limited, the terms "set", "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0020] As shown in Figs. 1-2 A pressing mechanism for hot press forming, comprising a press fixed plate 1 and a press bottom plate 2 arranged oppositely, a plurality of groups of parallel arranged guide shafts 3 are arranged between the press fixed plate 1 and the press bottom plate 2, the plurality of groups of guide shafts 3 are movably provided on the pressing plate 4 arranged in parallel with the press bottom plate 2, that is, a linear bearing can be sleeved on the guide shaft 3, the pressing plate 4 is installed through the linear bearing, so that the pressing plate 4 can move along the axial direction of the guide shaft 3. Specifically, the press fixed plate 1 is provided with a driving module capable of driving the pressing plate 4 to move towards the press bottom plate 2, for driving the pressing plate 4 to perform a pressing action.

[0021] Further, the pressing plate 4 is detachably connected to one side of the press bottom plate 2. The upper die 5 is arranged on the pressing plate 4. The upper die 5 is provided with a heating unit. The press bottom plate 2 is detachably connected to the lower die 6 arranged correspondingly with the upper die 5. The pressing plate 4 is limited in movement direction by the guide shaft 3, so as to improve the precision of the butt joint pressing of the upper die 5 and the lower die 6.

[0022] As described above, the longitudinal limiting shafts 7 are arranged on the pressing plate 4 and / or the press bottom plate 2, and the two ends of the longitudinal limiting shafts 7 can be embedded and abut on the pressing plate 4 and the press bottom plate 2 respectively. The longitudinal limiting shafts 7 are uniformly distributed around the upper die 5 and the lower die 6. When the driving module drives the pressing plate 4 to move towards the press bottom plate 2, the longitudinal limiting shafts 7 can be used as fulcrums to limit the maximum stroke of the pressing plate 4. At the same time, when the upper die 5 and the lower die 6 are pressed, the longitudinal limiting shafts 7 can balance the pressure of the upper die 5 acting on the lower die 6, so as to ensure the uniformity of the pressing force.

[0023] Specifically, in order to facilitate the disassembly and assembly of the upper die 5 and the lower die 6 on the pressing plate 4 and the press bottom plate 2, a plurality of bolts capable of being threadedly connected with the pressing plate 4 are arranged on the upper die 5. The lower die 6 is provided with a positioning pin 8 capable of being embedded in the press bottom plate 2.

[0024] Further, as shown in Fig. 2 The driving module is a gas-liquid booster cylinder 9, the piston rod of which passes through the press fixed plate 1 and is connected with the press plate 4. The gas-liquid booster cylinder 9 in the technical solution can be provided with a pressure sensor, which can record the pressure of the upper die 5 and the lower die 6 acting on the product in real time. After the upper die 5 reaches the pressing position, the pressure detection can be performed by using the GT detection technology in the prior art to ensure the pressing effect of the product.

[0025] The heating unit is a heating pipe which can be embedded in the upper die 5. The heating unit is a tubular electric heating element in the prior art which can convert electric energy into heat energy and uniformly heat the temperature of the upper die 5.

[0026] In the embodiment, the press fixed plate 1, the press bottom plate 2 and the outer cover of the guide shaft 3 are provided with an upper rack frame 10, the upper rack frame 10 is provided with a front end operation work opening and a rear end operation and maintenance opening, the front end operation work opening is provided with a safety grating 11 which can detect the manual operation area in real time and provide reliable safety protection for the operator. The front end operation work opening is used for the operator to manually take and place the material, and the rear end operation and maintenance opening is convenient for the operator to perform daily maintenance and repair of the equipment.

[0027] Further, as shown in Figs. 1-2 The edges of the front end operation work opening are provided with a two-hand starting button 12 and an emergency stop button 13. The two-hand starting button 12 needs the operator to press two buttons at the same time to start the equipment, which can ensure that the hands of the operator are away from the dangerous operation area, and cooperates with the safety grating 11 to effectively protect the personal safety of the operator.

[0028] Further, the upper rack frame 10 is arranged on a lower rack frame 14, the inside of the lower rack frame 14 is hollow for arranging PLC, power supply and other related electrical appliances. The bottom of the lower rack frame 14 is provided with an anti-vibration foot. The anti-vibration foot is in the prior art, which can fine-tune the height of the lower rack frame 14 within a certain range.

[0029] Working principle: first, the press plate 4 is lifted by default, leaving enough gap between the upper die 5 and the lower die 6 for feeding and discharging, and the heating pipe is continuously connected to the power supply. Then the operator places the product to be pressed on the lower die 6, after the operator's hands leave the work area and press the two-hand starting button 12, the gas-liquid booster cylinder 9 drives the press plate 4 to move towards the lower die 6, after the upper die 5 contacts the product, the speed is reduced, the product is slowly pressed, until the upper die 5 and the lower die 6 are pressed, and after a certain period of time, the press plate 4 and the upper die 5 are lifted by the gas-liquid booster cylinder 9, after the press plate 4 is lifted to a certain height, the product is cooled, and then the product can be taken out. The pressing mechanism for hot pressing in the technical solution is convenient to operate and has good safety protection and high safety performance.

[0030] The above is according to the ideal embodiment of the present application, through the above description, the relevant personnel can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content of the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. A pressing mechanism for hot press forming, characterized by: Including opposite arrangement presser fixed plate (1) and presser bottom plate (2), be provided with several groups parallel arrangement guide shaft (3) between presser fixed plate (1) and presser bottom plate (2), several groups guide shaft (3) are movably provided on the presser plate (4) parallel arrangement with presser bottom plate (2), be provided with the drive module of the presser plate (4) can be driven towards presser bottom plate (2) on presser fixed plate (1) moves; The presser plate (4) is detachably connected with the upper die (5) on the side towards the presser bottom plate (2), the upper die (5) is provided with a heating unit, and the presser bottom plate (2) is detachably connected with the lower die (6) arranged correspondingly with the upper die (5); Wherein, the presser plate (4) and / or the presser bottom plate (2) are provided with longitudinal limiting shafts (7) that can be embedded and abut on the presser plate (4) and the presser bottom plate (2) respectively.

2. The press-bonding mechanism for hot press forming according to claim 1, characterized by: The upper die (5) is provided with a plurality of bolts that can be threadedly connected with the presser plate (4), and the lower die (6) is provided with a positioning pin (8) that can be embedded in the presser bottom plate (2).

3. The press-bonding mechanism for hot press molding according to claim 1, characterized by: The drive module is a gas-liquid booster cylinder (9), and the piston rod of the gas-liquid booster cylinder (9) passes through the presser fixed plate (1) and is connected with the presser plate (4).

4. The press-bonding mechanism for hot press molding according to claim 1, characterized by: The heating unit is a heating pipe, which can be embedded in the upper die (5).

5. The press-bonding mechanism for hot press molding according to Claim 1, characterized in that: The presser fixed plate (1), the presser bottom plate (2) and the outer cover of the guide shaft (3) are provided with an upper rack frame (10), the upper rack frame (10) is provided with a front end operation work opening and a rear end operation maintenance opening, and the front end operation work opening is provided with a safety grating (11).

6. The press-bonding mechanism for hot press forming according to claim 5, characterized by: The edge of the front end operation work opening is provided with a double-hand starting button (12) and an emergency stop button (13).

7. The press-bonding mechanism for hot press molding according to claim 5, characterized by: The upper rack frame (10) is arranged on a lower rack frame (14), and the lower rack frame (14) is provided with an anti-vibration foot at the bottom.

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