JPH0664820U - Product mold - Google Patents

Abstract

(57) [Summary] [Purpose] Apply mold clamping means that minimizes equipment space. [Structure] A hydraulic mold clamping means 5 for pressing and abutting a lower mold 2 and an upper mold 3 each having a product forming surface corresponding to the shape of the product.
And a hydraulic lock means 6. The hydraulic mold clamping means 5 has a structure in which a tip end portion of a rod 11 which is driven forward and backward from a hydraulic cylinder 9 mounted on the lower mold 2 is fixed and held by a fixing member 10 provided on the upper mold 3. The hydraulic lock means 6 is a connecting shaft which is attached to the upper die 3 and which directs the tip end portion of a rod 13 which is driven to move back and forth in a horizontal direction from a hydraulic cylinder 12 mounted on the outer frame end side of the lower die 2 vertically downward. It is a structure in which a pair of rod receiving members 14 are inserted through 15 to hold the mold clamping. [Effect] The equipment space can be minimized, and if a large number of such molds are provided, it is suitable for a wide variety of small-scale production.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a product molding die for low-pressure SMC molding in particular.

[0002]

[Prior art]

In recent years, a number of new materials have come to be used widely and have been commercialized through various processing steps. There is a composite material as such a new material. For example, in SMC (Sheet Molding Compound), a reinforcing fiber and a matrix (matrix) are preliminarily compounded between the materials, and a sheet-like form which is convenient for molding is formed. It is a molding material. The mainstream of SMC is currently composed of glass fiber as a reinforcing material and unsaturated polyester as a matrix, but carbon fiber or aramid fiber as a reinforcing material has been developed depending on the application ( (Published by Toyo Keizai, a contemporary product dictionary). Such SMC molding usually employs a method of pressurizing at a molding pressure, that is, a high mold clamping pressure of about 100 kg / cm ² , and curing in several minutes.

[0003]

[Problems to be solved by the device]

However, SMC molding can be performed at a relatively low pressure of 10 kg / cm ² or less depending on the molding material, and the press machine that applies the mold clamping pressure of 100 kg / cm ² to the mold as described above requires equipment. There is a big waste on the device. The present invention has been made in view of the above points, and provides a product forming mold that can obtain a necessary and sufficient mold clamping pressure and can minimize the equipment space, and is particularly suitable for low pressure SMC molding. With the goal.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention provides a product forming surface corresponding to the shape of a product on the surfaces of the first molding die and the second molding die facing each other, and the molding material is formed on the product forming surface. In a product forming mold in which a desired product is obtained by clamping the first forming mold and the second forming mold by placing the first forming mold and the second forming mold in a predetermined position. A guide means for guiding and abutting against the mold, a mold clamping means for abutting and pressing the first mold and the second mold, and a mold clamping lock means for maintaining the mold clamping state. Is characterized by. A hydraulic actuating means is applied to the mold clamping means. Further, a hydraulic actuating means is applied to the mold clamping lock means.

[0005]

[Action]

 Since the structure is such that the hydraulic actuating means is attached to the first mold or the second mold as the mold clamping means, the equipment space can be minimized. Suitable for production.

[0006]

【Example】

 Next, a product molding die according to the present invention will be described below with reference to the accompanying drawings. In FIG. 1, reference numeral 1 indicates a product molding die, which is for low-pressure SMC molding and is a first molding die having a product forming surface corresponding to the shape of the product. A guide means 4 for guiding and abutting the lower mold 2 and the upper mold 3 at a predetermined position, and a lower mold 2 and an upper mold 3; It is provided with a hydraulic mold clamping means 5 which is a mold clamping means for pressing and pressing and a hydraulic pressure locking means 6 which is a mold clamping lock means.

The guide means 4 is composed of a pin receiving member 7 provided on the outer frame edge of the lower die 2 and a guide pin 8 provided on the outer frame edge of the upper die 3. Positioning is achieved so that the lower mold 2 and the upper mold 3 come into contact with each other at a predetermined position.

The hydraulic mold clamping means 5 is configured to move and abut the upper mold 3 to the lower mold 2 according to the guide of the guide means 4 to perform mold clamping. That is, the hydraulic mold clamping means 5 has a hydraulic cylinder 9 mounted on the outer frame edge of the lower mold 2, and a fixing member 10 provided on the upper mold 3, and a rod 11 that is driven forward and backward from the hydraulic cylinder 9. This is a structure in which the tip portion of is fixed and held by the fixing member 10.

Further, the hydraulic lock means 6 has a function of locking the lower mold 2 and the upper mold 3 clamped by the hydraulic mold clamping means 5 in order to hold them for a predetermined time. That is, the hydraulic lock means 6 is a pair of rods formed by inserting the hydraulic cylinder 12 mounted on the outer frame edge of the lower mold 2 and the tip of the rod 13 that is driven to move back and forth in the horizontal direction from the hydraulic cylinder 12. It has a receiving member 14 and a connecting shaft 15 attached to the upper mold 3 and oriented vertically downward. The tip of the rod 13 is processed into a taper shape to facilitate insertion into the through hole 16 formed in the rod receiving member 14. Further, the connecting shaft 15 has a tip portion located between the rod receiving members 14 when the upper die 3 comes into contact with the lower die 2, and a rod is inserted into a through hole 17 formed in the tip portion. The rod 13 is inserted together with the through hole 16 of the receiving member 14, and the upper die 3 contacts the lower die 2 to hold the die clamping.

The product molding die 1 according to the present invention has the above structure, and the molding process will be described as follows. As shown in FIG. 2, SMCs are arranged on the product forming surfaces of the lower mold 2 and the upper mold 3, and the hydraulic mold clamping means 5 is activated to lower the upper mold 3 according to the guide of the guide means 4, The mold 2 is abutted against and the mold is clamped. At this time, the connecting shaft 15 provided on the upper mold 3 is inserted between the pair of rod receiving members 14 (see FIGS. 3 and 4). Then, the hydraulic lock step 6 is activated to drive the rod 13 to extend from the hydraulic cylinder 12 in the horizontal direction. The rod 13 penetrates through the through hole 16 of the rod receiving member 14 and the through hole 17 of the connecting shaft 15, and the lower mold 2 and the upper mold 3 are held in a locked state. After a lapse of a predetermined time, the hydraulic lock means 6 is activated to retract the rod 13 to release the lock, and the hydraulic die clamping means 5 is activated to move the upper die 3 upward so that the product can be taken out. .

(Effect of the Invention) As described above, according to the present invention, since the mold clamping means and the hydraulic actuating means as the mold clamping lock means are attached to the lower mold or the upper mold, the equipment space is minimized. If it is equipped with a large number of such molds, it is suitable for small-lot production of various types.

[0012]

[Brief description of drawings]

FIG. 1 is a side view schematically explaining a clamped state of a product molding die according to the present invention.

FIG. 2 is a side explanatory view showing a state before the product forming die shown in FIG. 1 is clamped.

FIG. 3 is a perspective view of a main part of the product molding die shown in FIG.

FIG. 4 is a perspective view of a main part of the product molding die shown in FIG.

[Explanation of symbols]

 1 Product Mold 2 Lower Mold 3 Upper Mold 4 Guide Means 5 Hydraulic Clamping Means 6 Hydraulic Lock Means 7 Hydraulic Lock Means 7 Pin Receiving Members 8 Guide Pins 9, 12 Hydraulic Cylinder 10 Fixing Members 11, 13 Rods 14 Rod Receiving Members 15 Connecting Shafts 16, 17 through holes

Claims (3)

[Scope of utility model registration request] 1. A product forming surface corresponding to the shape of a product is provided on surfaces of a first molding die and a second molding die opposite to each other, and a molding material is placed on the product forming surface to form a first molding die. In a product forming mold in which a desired product is obtained by clamping the second forming mold, guide means for guiding and abutting the first forming mold and the second forming mold at a predetermined position, A product molding die comprising: a mold clamping means for abutting and pressing the first molding die and the second molding die, and a mold clamping lock means for maintaining a mold clamping state. 2. The product forming die according to claim 1, wherein the die clamping means is a hydraulic operating means. 3. A product forming die according to claim 1, wherein the die clamping lock means is a hydraulic operating means.